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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU Affero General Public License
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8 * as published by the Free Software Foundation, either version 3 of
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9 * the License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * Affero General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU Affero General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #pragma once
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22
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23 #include "ITiledPyramid.h"
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24
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25
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26 namespace OrthancWSI
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27 {
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28 /**
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29 * This class acts as a wrapper for "cropped" tiled images, where
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30 * the tiles at the right or at the bottom might not have the same
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31 * dimensions of the other slides.
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32 **/
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33 class DecodedTiledPyramid : public ITiledPyramid
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34 {
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35 private:
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36 uint8_t backgroundColor_[3];
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37
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38 protected:
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39 // Subclasses can assume that the requested region is fully inside
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40 // the image, and that target has the proper size to store the
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41 // region. Pay attention to implement mutual exclusion in subclasses.
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42 virtual void ReadRegion(Orthanc::ImageAccessor& target,
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43 unsigned int level,
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44 unsigned int x,
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45 unsigned int y) = 0;
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46
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47 public:
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48 DecodedTiledPyramid();
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49
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50 void SetBackgroundColor(uint8_t red,
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51 uint8_t green,
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52 uint8_t blue);
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53
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54 void GetBackgroundColor(uint8_t& red,
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55 uint8_t& green,
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56 uint8_t& blue) const;
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57
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58 virtual Orthanc::ImageAccessor* DecodeTile(unsigned int level,
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59 unsigned int tileX,
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60 unsigned int tileY);
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61
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62 virtual ImageCompression GetImageCompression() const
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63 {
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64 return ImageCompression_None;
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65 }
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66
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67 virtual bool ReadRawTile(std::string& tile,
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68 unsigned int level,
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69 unsigned int tileX,
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70 unsigned int tileY)
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71 {
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72 return false; // No access to the raw tiles
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73 }
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74 };
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75 }
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