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591
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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 "../../OpenGL/IOpenGLContext.h"
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25 #include "../../OpenGL/OpenGLProgram.h"
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26 #include "../../OpenGL/OpenGLTexture.h"
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27 #include "../../Toolbox/AffineTransform2D.h"
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28
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29 namespace OrthancStone
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30 {
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31 namespace Internals
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32 {
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33 class OpenGLTextureProgram : public boost::noncopyable
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34 {
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35 private:
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36 OpenGL::IOpenGLContext& context_;
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37 std::auto_ptr<OpenGL::OpenGLProgram> program_;
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38 GLint positionLocation_;
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39 GLint textureLocation_;
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40 GLuint buffers_[2];
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41
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42 void InitializeExecution(OpenGL::OpenGLTexture& texture,
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43 const AffineTransform2D& transform);
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44
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45 void FinalizeExecution();
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46
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47 public:
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48 OpenGLTextureProgram(OpenGL::IOpenGLContext& context,
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49 const char* fragmentShader);
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50
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51 ~OpenGLTextureProgram();
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52
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53 class Execution : public boost::noncopyable
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54 {
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55 private:
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56 OpenGLTextureProgram& that_;
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57
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58 public:
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59 Execution(OpenGLTextureProgram& that,
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60 OpenGL::OpenGLTexture& texture,
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61 const AffineTransform2D& transform) :
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62 that_(that)
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63 {
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64 that_.InitializeExecution(texture, transform);
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65 }
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66
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67 ~Execution()
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68 {
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69 that_.FinalizeExecution();
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70 }
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71
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72 void DrawTriangles();
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73
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74 GLint GetUniformLocation(const std::string& name)
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75 {
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76 return that_.program_->GetUniformLocation(name);
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77 }
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78 };
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79 };
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80 }
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81 }
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