Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 55:b6432a00b103
use of simpler data structures
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 24 Nov 2016 14:44:11 +0100 |
parents | 7a88c614be04 |
children | ff0ef01c332c |
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 | |
5 * | |
6 * This program is free software: you can redistribute it and/or | |
7 * modify it under the terms of the GNU Affero General Public License | |
8 * as published by the Free Software Foundation, either version 3 of | |
9 * the License, or (at your option) any later version. | |
10 * | |
11 * This program is distributed in the hope that it will be useful, but | |
12 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 * Affero General Public License for more details. | |
15 * | |
16 * You should have received a copy of the GNU Affero General Public License | |
17 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 **/ | |
19 | |
20 | |
16
7a88c614be04
preparing for precompiled headers
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
0
diff
changeset
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21 #include "../PrecompiledHeadersWSI.h" |
0 | 22 #include "DecodedTiledPyramid.h" |
23 | |
24 #include "../ImageToolbox.h" | |
25 | |
26 #include <memory> | |
27 #include <cassert> | |
28 | |
29 namespace OrthancWSI | |
30 { | |
31 DecodedTiledPyramid::DecodedTiledPyramid() | |
32 { | |
33 SetBackgroundColor(255, 255, 255); | |
34 } | |
35 | |
36 | |
37 void DecodedTiledPyramid::SetBackgroundColor(uint8_t red, | |
38 uint8_t green, | |
39 uint8_t blue) | |
40 { | |
41 backgroundColor_[0] = red; | |
42 backgroundColor_[1] = green; | |
43 backgroundColor_[2] = blue; | |
44 } | |
45 | |
46 | |
47 void DecodedTiledPyramid::GetBackgroundColor(uint8_t& red, | |
48 uint8_t& green, | |
49 uint8_t& blue) const | |
50 { | |
51 red = backgroundColor_[0]; | |
52 green = backgroundColor_[1]; | |
53 blue = backgroundColor_[2]; | |
54 } | |
55 | |
56 | |
57 Orthanc::ImageAccessor* DecodedTiledPyramid::DecodeTile(unsigned int level, | |
58 unsigned int tileX, | |
59 unsigned int tileY) | |
60 { | |
61 unsigned int x = tileX * GetTileWidth(); | |
62 unsigned int y = tileY * GetTileHeight(); | |
63 | |
64 std::auto_ptr<Orthanc::ImageAccessor> tile | |
65 (ImageToolbox::Allocate(GetPixelFormat(), GetTileWidth(), GetTileHeight())); | |
66 | |
67 if (x >= GetLevelWidth(level) || | |
68 y >= GetLevelHeight(level)) // (*) | |
69 { | |
70 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
71 return tile.release(); | |
72 } | |
73 | |
74 bool fit = true; | |
75 unsigned int regionWidth; | |
76 if (x + GetTileWidth() <= GetLevelWidth(level)) | |
77 { | |
78 regionWidth = GetTileWidth(); | |
79 } | |
80 else | |
81 { | |
82 assert(GetLevelWidth(level) >= x); // This results from (*) | |
83 regionWidth = GetLevelWidth(level) - x; | |
84 fit = false; | |
85 } | |
86 | |
87 unsigned int regionHeight; | |
88 if (y + GetTileHeight() <= GetLevelHeight(level)) | |
89 { | |
90 regionHeight = GetTileHeight(); | |
91 } | |
92 else | |
93 { | |
94 assert(GetLevelHeight(level) >= y); // This results from (*) | |
95 regionHeight = GetLevelHeight(level) - y; | |
96 fit = false; | |
97 } | |
98 | |
99 if (fit) | |
100 { | |
101 // The tile entirely lies inside the image | |
102 ReadRegion(*tile, level, x, y); | |
103 } | |
104 else | |
105 { | |
106 // The tile exceeds the size of image, decode it to a temporary buffer | |
107 std::auto_ptr<Orthanc::ImageAccessor> cropped | |
108 (ImageToolbox::Allocate(GetPixelFormat(), regionWidth, regionHeight)); | |
109 ReadRegion(*cropped, level, x, y); | |
110 | |
111 // Create a white tile, and fill it with the cropped content | |
112 ImageToolbox::Set(*tile, backgroundColor_[0], backgroundColor_[1], backgroundColor_[2]); | |
113 ImageToolbox::Embed(*tile, *cropped, 0, 0); | |
114 } | |
115 | |
116 return tile.release(); | |
117 } | |
118 } |