Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 257:9af4ba0d92fe iiif
support of full rendering in IIIF
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sun, 09 Jul 2023 15:24:37 +0200 |
parents | 20a730889ae2 |
children | 7020852a8fa9 |
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 | |
254 | 5 * Copyright (C) 2017-2023 Osimis S.A., Belgium |
6 * Copyright (C) 2021-2023 Sebastien Jodogne, ICTEAM UCLouvain, Belgium | |
0 | 7 * |
8 * This program is free software: you can redistribute it and/or | |
9 * modify it under the terms of the GNU Affero General Public License | |
10 * as published by the Free Software Foundation, either version 3 of | |
11 * the License, or (at your option) any later version. | |
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 | |
16 * Affero General Public License for more details. | |
17 * | |
18 * You should have received a copy of the GNU Affero General Public License | |
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
20 **/ | |
21 | |
22 | |
16
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23 #include "../PrecompiledHeadersWSI.h" |
0 | 24 #include "DecodedTiledPyramid.h" |
25 | |
26 #include "../ImageToolbox.h" | |
27 | |
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28 #include <Compatibility.h> // For std::unique_ptr |
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29 |
0 | 30 #include <memory> |
31 #include <cassert> | |
32 | |
33 namespace OrthancWSI | |
34 { | |
35 DecodedTiledPyramid::DecodedTiledPyramid() | |
36 { | |
37 SetBackgroundColor(255, 255, 255); | |
38 } | |
39 | |
40 | |
41 void DecodedTiledPyramid::SetBackgroundColor(uint8_t red, | |
42 uint8_t green, | |
43 uint8_t blue) | |
44 { | |
45 backgroundColor_[0] = red; | |
46 backgroundColor_[1] = green; | |
47 backgroundColor_[2] = blue; | |
48 } | |
49 | |
50 | |
51 void DecodedTiledPyramid::GetBackgroundColor(uint8_t& red, | |
52 uint8_t& green, | |
53 uint8_t& blue) const | |
54 { | |
55 red = backgroundColor_[0]; | |
56 green = backgroundColor_[1]; | |
57 blue = backgroundColor_[2]; | |
58 } | |
59 | |
60 | |
61 Orthanc::ImageAccessor* DecodedTiledPyramid::DecodeTile(unsigned int level, | |
62 unsigned int tileX, | |
63 unsigned int tileY) | |
64 { | |
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65 unsigned int x = tileX * GetTileWidth(level); |
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66 unsigned int y = tileY * GetTileHeight(level); |
0 | 67 |
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68 std::unique_ptr<Orthanc::ImageAccessor> tile |
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69 (ImageToolbox::Allocate(GetPixelFormat(), GetTileWidth(level), GetTileHeight(level))); |
0 | 70 |
71 if (x >= GetLevelWidth(level) || | |
72 y >= GetLevelHeight(level)) // (*) | |
73 { | |
74 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
75 return tile.release(); | |
76 } | |
77 | |
78 bool fit = true; | |
79 unsigned int regionWidth; | |
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80 if (x + GetTileWidth(level) <= GetLevelWidth(level)) |
0 | 81 { |
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82 regionWidth = GetTileWidth(level); |
0 | 83 } |
84 else | |
85 { | |
86 assert(GetLevelWidth(level) >= x); // This results from (*) | |
87 regionWidth = GetLevelWidth(level) - x; | |
88 fit = false; | |
89 } | |
90 | |
91 unsigned int regionHeight; | |
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92 if (y + GetTileHeight(level) <= GetLevelHeight(level)) |
0 | 93 { |
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94 regionHeight = GetTileHeight(level); |
0 | 95 } |
96 else | |
97 { | |
98 assert(GetLevelHeight(level) >= y); // This results from (*) | |
99 regionHeight = GetLevelHeight(level) - y; | |
100 fit = false; | |
101 } | |
102 | |
103 if (fit) | |
104 { | |
105 // The tile entirely lies inside the image | |
106 ReadRegion(*tile, level, x, y); | |
107 } | |
108 else | |
109 { | |
110 // The tile exceeds the size of image, decode it to a temporary buffer | |
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111 std::unique_ptr<Orthanc::ImageAccessor> cropped |
0 | 112 (ImageToolbox::Allocate(GetPixelFormat(), regionWidth, regionHeight)); |
113 ReadRegion(*cropped, level, x, y); | |
114 | |
115 // Create a white tile, and fill it with the cropped content | |
116 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
117 ImageToolbox::Embed(*tile, *cropped, 0, 0); | |
118 } | |
119 | |
120 return tile.release(); | |
121 } | |
122 } |