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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 #include "PyramidWithRawTiles.h"
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22
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23 #include "../Orthanc/Core/Images/PngReader.h"
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24 #include "../Orthanc/Core/Images/JpegReader.h"
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25 #include "../Orthanc/Core/OrthancException.h"
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26 #include "../Jpeg2000Reader.h"
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27
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28 namespace OrthancWSI
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29 {
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30 Orthanc::ImageAccessor* PyramidWithRawTiles::DecodeTile(unsigned int level,
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31 unsigned int tileX,
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32 unsigned int tileY)
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33 {
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34 std::string tile;
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35 if (!ReadRawTile(tile, level, tileX, tileY))
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36 {
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37 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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38 }
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39
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40 std::auto_ptr<Orthanc::ImageAccessor> result;
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41
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42 switch (GetImageCompression())
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43 {
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44 case ImageCompression_None:
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45 result.reset(new Orthanc::ImageAccessor);
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46 result->AssignReadOnly(GetPixelFormat(),
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47 GetTileWidth(),
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48 GetTileHeight(),
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49 GetBytesPerPixel(GetPixelFormat()) * GetTileWidth(),
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50 tile.c_str());
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51 break;
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52
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53 case ImageCompression_Jpeg:
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54 result.reset(new Orthanc::JpegReader);
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55 dynamic_cast<Orthanc::JpegReader&>(*result).ReadFromMemory(tile);
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56 break;
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57
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58 case ImageCompression_Png:
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59 result.reset(new Orthanc::PngReader);
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60 dynamic_cast<Orthanc::PngReader&>(*result).ReadFromMemory(tile);
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61 break;
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62
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63 case ImageCompression_Jpeg2000:
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64 result.reset(new Jpeg2000Reader);
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65 dynamic_cast<Jpeg2000Reader&>(*result).ReadFromMemory(tile);
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66 break;
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67
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68 default:
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69 throw Orthanc::OrthancException(Orthanc::ErrorCode_NotImplemented);
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70 }
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71
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72 return result.release();
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73 }
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74 }
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