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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 "TranscodeTileCommand.h"
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22
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23 #include "../Orthanc/Core/OrthancException.h"
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24 #include "../Orthanc/Core/Logging.h"
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25
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26 #include <cassert>
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27
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28 namespace OrthancWSI
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29 {
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30 TranscodeTileCommand::TranscodeTileCommand(IPyramidWriter& target,
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31 ITiledPyramid& source,
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32 unsigned int level,
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33 unsigned int x,
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34 unsigned int y,
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35 unsigned int countTilesX,
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36 unsigned int countTilesY,
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37 const DicomizerParameters& parameters) :
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38 target_(target),
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39 source_(source, level, target.GetTileWidth(), target.GetTileHeight(), parameters),
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40 level_(level),
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41 x_(x),
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42 y_(y),
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43 countTilesX_(countTilesX),
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44 countTilesY_(countTilesY)
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45 {
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46 assert(x_ + countTilesX_ <= target_.GetCountTilesX(level_) &&
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47 y_ + countTilesY_ <= target_.GetCountTilesY(level_));
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48
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49 if (target.GetPixelFormat() != source.GetPixelFormat())
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50 {
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51 throw Orthanc::OrthancException(Orthanc::ErrorCode_IncompatibleImageFormat);
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52 }
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53 }
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54
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55
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56 bool TranscodeTileCommand::Execute()
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57 {
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58 for (unsigned int x = x_; x < x_ + countTilesX_; x++)
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59 {
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60 for (unsigned int y = y_; y < y_ + countTilesY_; y++)
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61 {
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62 LOG(INFO) << "Adding tile (" << x << "," << y << ") at level " << level_;
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63 const std::string* rawTile = source_.GetRawTile(x, y);
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64
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65 if (rawTile != NULL)
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66 {
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67 // Simple transcoding
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68 target_.WriteRawTile(*rawTile, source_.GetImageCompression(), level_, x, y);
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69 }
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70 else
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71 {
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72 Orthanc::ImageAccessor tile = source_.GetDecodedTile(x, y);
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73
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74 // Re-encoding the file
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75 target_.EncodeTile(tile, level_, x, y);
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76 }
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77 }
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78 }
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79
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80 return true;
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81 }
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82
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83
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84 void TranscodeTileCommand::PrepareBagOfTasks(Orthanc::BagOfTasks& tasks,
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85 IPyramidWriter& target,
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86 ITiledPyramid& source,
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87 const DicomizerParameters& parameters)
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88 {
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89 const unsigned int stepX = source.GetTileWidth() / target.GetTileWidth();
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90 const unsigned int stepY = source.GetTileHeight() / target.GetTileHeight();
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91 assert(stepX >= 1 && stepY >= 1);
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92
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93 for (unsigned int level = 0; level < source.GetLevelCount(); level++)
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94 {
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95 const unsigned int targetCountTilesX = target.GetCountTilesX(level);
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96 const unsigned int targetCountTilesY = target.GetCountTilesY(level);
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97
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98 for (unsigned int y = 0; y < targetCountTilesY; y += stepY)
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99 {
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100 unsigned int cy = stepY;
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101 if (y + cy > targetCountTilesY)
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102 {
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103 cy = targetCountTilesY - y;
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104 }
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105
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106 for (unsigned int x = 0; x < targetCountTilesX; x += stepX)
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107 {
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108 unsigned int cx = stepX;
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109 if (x + cx > targetCountTilesX)
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110 {
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111 cx = targetCountTilesX - x;
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112 }
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113
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114 tasks.Push(new TranscodeTileCommand
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115 (target, source, level, x, y, cx, cy, parameters));
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116 }
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117 }
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118 }
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119 }
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120 }
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