Mercurial > hg > orthanc-wsi
annotate Framework/Inputs/DecodedTiledPyramid.cpp @ 133:55e9dde3faee
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Sat, 24 Mar 2018 12:03:18 +0100 |
| parents | a51dee6a1515 |
| children | 6b8ccfc02051 |
| rev | line source |
|---|---|
| 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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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 } |