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annotate OrthancStone/Sources/OpenGL/OpenGLTexture.h @ 2125:2e050ec85379 deep-learning

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integration mainline->deep-learning
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 30 May 2024 17:06:53 +0200
parents de049fd88697 16c01cc201e7
children
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Lesser General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Lesser General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Lesser General Public
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19 * License along with this program. If not, see
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20 * <http://www.gnu.org/licenses/>.
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21 **/
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23
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24 #pragma once
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25
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26 #include "OpenGLIncludes.h"
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27 #include "IOpenGLContext.h"
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28
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29 #include <Images/ImageAccessor.h>
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30
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31 #include <boost/noncopyable.hpp>
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32
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33
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34 namespace OrthancStone
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35 {
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36 namespace OpenGL
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37 {
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38 class OpenGLTexture : public boost::noncopyable
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39 {
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40 friend class OpenGLFramebuffer;
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41
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42 private:
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43 OpenGL::IOpenGLContext& context_;
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44 GLuint texture_;
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45 unsigned int width_;
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46 unsigned int height_;
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47 Orthanc::PixelFormat format_;
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48 bool isLinearInterpolation_;
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49
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50 void Setup(Orthanc::PixelFormat format,
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51 unsigned int width,
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52 unsigned int height,
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53 bool isLinearInterpolation,
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54 const void* data);
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55
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56 /**
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57 * Returns the low-level OpenGL handle of the texture. Beware to
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58 * never change the size of the texture using this handle!
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59 **/
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60 GLuint GetId() const
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61 {
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62 return texture_;
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63 }
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64
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65 public:
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66 explicit OpenGLTexture(OpenGL::IOpenGLContext& context);
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67
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68 ~OpenGLTexture();
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69
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70 Orthanc::PixelFormat GetFormat() const
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71 {
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72 return format_;
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73 }
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74
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75 unsigned int GetWidth() const
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76 {
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77 return width_;
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78 }
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79
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80 unsigned int GetHeight() const
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81 {
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82 return height_;
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83 }
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84
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85 bool IsLinearInterpolation() const
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86 {
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87 return isLinearInterpolation_;
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88 }
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89
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90 void Setup(Orthanc::PixelFormat format,
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91 unsigned int width,
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92 unsigned int height,
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93 bool isLinearInterpolation)
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94 {
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95 Setup(format, width, height, isLinearInterpolation, NULL);
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96 }
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97
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98 void Load(const Orthanc::ImageAccessor& image,
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99 bool isLinearInterpolation);
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100
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101 void Bind(GLint location) const;
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102
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103 void BindAsTextureUnit(GLint location,
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104 unsigned int unit) const;
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105
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106 Orthanc::ImageAccessor* Download(Orthanc::PixelFormat format) const;
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107
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108 /**
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109 * By default, textures are mirrored at the borders. This
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110 * function will set out-of-image access to zero.
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111 **/
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112 void SetClampingToZero();
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113
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114 static void ConvertToOpenGLFormats(GLenum& sourceFormat,
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115 GLenum& internalFormat,
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116 GLenum& pixelType,
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117 Orthanc::PixelFormat format);
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118 };
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119 }
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120 }