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annotate Framework/Scene2D/LookupTableTextureSceneLayer.h @ 1179:177e7d431cd1 broker

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log scale in textures, remove redundant code for LUTs
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 20 Nov 2019 15:24:20 +0100
parents 287ec78f63b4
children 0ca50d275b9a
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1 /**
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2 * Stone of Orthanc
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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 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #pragma once
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23
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24 #include "TextureBaseSceneLayer.h"
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25
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26 namespace OrthancStone
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27 {
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28 class LookupTableTextureSceneLayer : public TextureBaseSceneLayer
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29 {
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30 private:
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31 ImageWindowing windowing_;
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32 float minValue_;
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33 float maxValue_;
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34 std::vector<uint8_t> lut_;
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35 bool applyLog_;
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36
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37 void SetLookupTableRgb(const std::vector<uint8_t>& lut);
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38
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39 public:
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40 // The pixel format must be convertible to Float32
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41 LookupTableTextureSceneLayer(const Orthanc::ImageAccessor& texture);
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42
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43 void SetLookupTableGrayscale();
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44
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45 // The vector must contain either 3 * 256 values (RGB), or 4 * 256
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46 // (RGBA). In the RGB case, an alpha channel will be automatically added.
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47 void SetLookupTable(const std::vector<uint8_t>& lut);
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48
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49 void SetRange(float minValue,
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50 float maxValue);
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51
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52 void FitRange();
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53
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54 float GetMinValue() const
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55 {
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56 return minValue_;
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57 }
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58
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59 float GetMaxValue() const
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60 {
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61 return maxValue_;
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62 }
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63
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64 // This returns a vector of 4 * 256 values between 0 and 255, in RGBA.
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65 const std::vector<uint8_t>& GetLookupTable() const
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66 {
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67 return lut_;
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68 }
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69
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70 void SetApplyLog(bool apply);
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71
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72 bool IsApplyLog() const
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73 {
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74 return applyLog_;
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75 }
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76
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77 virtual ISceneLayer* Clone() const;
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78
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79 virtual Type GetType() const
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80 {
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81 return Type_LookupTableTexture;
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82 }
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83
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84 // Render the texture to a color image of format BGRA32 (Cairo
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85 // surfaces) or RGBA32 (OpenGL)
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86 void Render(Orthanc::ImageAccessor& target) const;
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87 };
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88 }