Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 117:28bd1b119c4d
support of Linux Standard Base
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 04 Jan 2018 10:55:12 +0100 |
parents | a51dee6a1515 |
children | 6b8ccfc02051 |
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) 2017-2018 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
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 | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
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Sebastien Jodogne <s.jodogne@gmail.com>
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22 #include "../PrecompiledHeadersWSI.h" |
0 | 23 #include "DecodedTiledPyramid.h" |
24 | |
25 #include "../ImageToolbox.h" | |
26 | |
27 #include <memory> | |
28 #include <cassert> | |
29 | |
30 namespace OrthancWSI | |
31 { | |
32 DecodedTiledPyramid::DecodedTiledPyramid() | |
33 { | |
34 SetBackgroundColor(255, 255, 255); | |
35 } | |
36 | |
37 | |
38 void DecodedTiledPyramid::SetBackgroundColor(uint8_t red, | |
39 uint8_t green, | |
40 uint8_t blue) | |
41 { | |
42 backgroundColor_[0] = red; | |
43 backgroundColor_[1] = green; | |
44 backgroundColor_[2] = blue; | |
45 } | |
46 | |
47 | |
48 void DecodedTiledPyramid::GetBackgroundColor(uint8_t& red, | |
49 uint8_t& green, | |
50 uint8_t& blue) const | |
51 { | |
52 red = backgroundColor_[0]; | |
53 green = backgroundColor_[1]; | |
54 blue = backgroundColor_[2]; | |
55 } | |
56 | |
57 | |
58 Orthanc::ImageAccessor* DecodedTiledPyramid::DecodeTile(unsigned int level, | |
59 unsigned int tileX, | |
60 unsigned int tileY) | |
61 { | |
62 unsigned int x = tileX * GetTileWidth(); | |
63 unsigned int y = tileY * GetTileHeight(); | |
64 | |
65 std::auto_ptr<Orthanc::ImageAccessor> tile | |
66 (ImageToolbox::Allocate(GetPixelFormat(), GetTileWidth(), GetTileHeight())); | |
67 | |
68 if (x >= GetLevelWidth(level) || | |
69 y >= GetLevelHeight(level)) // (*) | |
70 { | |
71 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
72 return tile.release(); | |
73 } | |
74 | |
75 bool fit = true; | |
76 unsigned int regionWidth; | |
77 if (x + GetTileWidth() <= GetLevelWidth(level)) | |
78 { | |
79 regionWidth = GetTileWidth(); | |
80 } | |
81 else | |
82 { | |
83 assert(GetLevelWidth(level) >= x); // This results from (*) | |
84 regionWidth = GetLevelWidth(level) - x; | |
85 fit = false; | |
86 } | |
87 | |
88 unsigned int regionHeight; | |
89 if (y + GetTileHeight() <= GetLevelHeight(level)) | |
90 { | |
91 regionHeight = GetTileHeight(); | |
92 } | |
93 else | |
94 { | |
95 assert(GetLevelHeight(level) >= y); // This results from (*) | |
96 regionHeight = GetLevelHeight(level) - y; | |
97 fit = false; | |
98 } | |
99 | |
100 if (fit) | |
101 { | |
102 // The tile entirely lies inside the image | |
103 ReadRegion(*tile, level, x, y); | |
104 } | |
105 else | |
106 { | |
107 // The tile exceeds the size of image, decode it to a temporary buffer | |
108 std::auto_ptr<Orthanc::ImageAccessor> cropped | |
109 (ImageToolbox::Allocate(GetPixelFormat(), regionWidth, regionHeight)); | |
110 ReadRegion(*cropped, level, x, y); | |
111 | |
112 // Create a white tile, and fill it with the cropped content | |
113 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
114 ImageToolbox::Embed(*tile, *cropped, 0, 0); | |
115 } | |
116 | |
117 return tile.release(); | |
118 } | |
119 } |