Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/OpenGLLookupTableTextureRenderer.cpp @ 1854:4026a458349d
Fix values reported in "ww/wc" info panel (windowing width and center)
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 13 Aug 2021 17:53:50 +0200 |
parents | 9ac2a65d4172 |
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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) 2017-2021 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 Lesser 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 * Lesser 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 Lesser General Public |
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18 * License along with this program. If not, see |
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19 * <http://www.gnu.org/licenses/>. |
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20 **/ |
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21 |
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22 |
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23 #include "OpenGLLookupTableTextureRenderer.h" |
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24 |
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25 #include "../../Toolbox/ImageToolbox.h" |
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26 |
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27 |
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28 #include <OrthancException.h> |
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29 |
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30 namespace OrthancStone |
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31 { |
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32 namespace Internals |
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33 { |
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34 void OpenGLLookupTableTextureRenderer::LoadTexture( |
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35 const LookupTableTextureSceneLayer& layer) |
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36 { |
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37 if (!context_.IsContextLost()) |
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39 const Orthanc::ImageAccessor& source = layer.GetTexture(); |
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40 const unsigned int width = source.GetWidth(); |
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41 const unsigned int height = source.GetHeight(); |
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42 |
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43 if (texture_.get() == NULL || |
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44 texture_->GetWidth() != width || |
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45 texture_->GetHeight() != height) |
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46 { |
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47 texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, width, height, false)); |
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48 } |
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49 |
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50 layer.Render(*texture_); |
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51 |
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52 context_.MakeCurrent(); |
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53 glTexture_.reset(new OpenGL::OpenGLTexture(context_)); |
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54 glTexture_->Load(*texture_, layer.IsLinearInterpolation()); |
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55 layerTransform_ = layer.GetTransform(); |
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56 } |
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57 } |
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58 |
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59 OpenGLLookupTableTextureRenderer::OpenGLLookupTableTextureRenderer( |
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60 OpenGL::IOpenGLContext& context, |
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61 OpenGLColorTextureProgram& program, |
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62 const LookupTableTextureSceneLayer& layer) |
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63 : context_(context) |
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64 , program_(program) |
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65 { |
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66 LoadTexture(layer); |
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67 } |
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69 |
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70 void OpenGLLookupTableTextureRenderer::Render(const AffineTransform2D& transform, |
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71 unsigned int canvasWidth, |
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72 unsigned int canvasHeight) |
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73 { |
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74 if (!context_.IsContextLost() && glTexture_.get() != NULL) |
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76 program_.Apply( |
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77 *glTexture_, |
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78 AffineTransform2D::Combine(transform, layerTransform_), |
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79 canvasWidth, canvasHeight, true); |
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80 } |
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84 void OpenGLLookupTableTextureRenderer::Update(const ISceneLayer& layer) |
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85 { |
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86 // Should never happen (no revisions in color textures) |
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87 LoadTexture(dynamic_cast<const LookupTableTextureSceneLayer&>(layer)); |
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88 } |
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90 } |