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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 #include "OpenGLFloatTextureRenderer.h"
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23
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24 namespace OrthancStone
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25 {
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26 namespace Internals
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27 {
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28 void OpenGLFloatTextureRenderer::UpdateInternal(const FloatTextureSceneLayer& layer,
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29 bool loadTexture)
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30 {
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31 if (loadTexture)
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32 {
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33 context_.MakeCurrent();
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34 texture_.reset(new OpenGLFloatTextureProgram::Data(layer.GetTexture(), layer.IsLinearInterpolation()));
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35 }
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36
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37 layerTransform_ = layer.GetTransform();
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38 layer.GetWindowing(windowCenter_, windowWidth_);
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39 }
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40
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41
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42 OpenGLFloatTextureRenderer::OpenGLFloatTextureRenderer(OpenGL::IOpenGLContext& context,
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43 OpenGLFloatTextureProgram& program,
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44 const FloatTextureSceneLayer& layer) :
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45 context_(context),
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46 program_(program)
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47 {
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48 UpdateInternal(layer, true);
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49 }
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50
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51
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52 void OpenGLFloatTextureRenderer::Render(const AffineTransform2D& transform)
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53 {
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54 if (texture_.get() != NULL)
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55 {
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56 program_.Apply(*texture_, AffineTransform2D::Combine(transform, layerTransform_),
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57 windowCenter_, windowWidth_);
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58 }
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59 }
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60
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61
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62 void OpenGLFloatTextureRenderer::Update(const ISceneLayer& layer)
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63 {
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64 UpdateInternal(dynamic_cast<const FloatTextureSceneLayer&>(layer), false);
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65 }
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66 }
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67 }
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