annotate OrthancStone/Sources/Scene2D/Internals/OpenGLTextProgram.h @ 2088:b98d159c7545 dicom-sr

created branch dicom-sr
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Nov 2023 18:12:35 +0100
parents 07964689cb0b
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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) 2021-2023 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 "../../Fonts/GlyphTextureAlphabet.h"
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27 #include "../../OpenGL/IOpenGLContext.h"
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28 #include "../../OpenGL/OpenGLProgram.h"
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29 #include "../../OpenGL/OpenGLTexture.h"
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30 #include "../../Toolbox/AffineTransform2D.h"
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31 #include "../TextSceneLayer.h"
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32
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33 #include <Compatibility.h>
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34
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35 namespace OrthancStone
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36 {
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37 namespace Internals
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38 {
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39 class OpenGLTextProgram : public boost::noncopyable
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40 {
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41 public:
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42 class Data : public boost::noncopyable
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43 {
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44 private:
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45 OpenGL::IOpenGLContext& context_;
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46 size_t coordinatesCount_;
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47 GLuint buffers_[2];
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48 float red_;
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49 float green_;
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50 float blue_;
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51 double x_;
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52 double y_;
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53 double border_;
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54 unsigned int textWidth_;
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55 unsigned int textHeight_;
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56 BitmapAnchor anchor_;
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57
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58 public:
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59 Data(OpenGL::IOpenGLContext& context,
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60 const GlyphTextureAlphabet& alphabet,
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61 const TextSceneLayer& layer);
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62
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63 ~Data();
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64
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65 bool IsEmpty() const
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66 {
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67 return coordinatesCount_ == 0;
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68 }
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69
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70 size_t GetCoordinatesCount() const
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71 {
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72 return coordinatesCount_;
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73 }
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74
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75 GLuint GetSceneLocationsBuffer() const;
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76
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77 GLuint GetTextureLocationsBuffer() const;
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78
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79 float GetRed() const
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80 {
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81 return red_;
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82 }
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83
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84 float GetGreen() const
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85 {
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86 return green_;
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87 }
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88
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89 float GetBlue() const
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90 {
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91 return blue_;
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92 }
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93
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94 double GetX() const
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95 {
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96 return x_;
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97 }
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98
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99 double GetY() const
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100 {
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101 return y_;
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102 }
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103
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104 double GetBorder() const
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105 {
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106 return border_;
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107 }
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108
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109 unsigned int GetTextWidth() const
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110 {
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111 return textWidth_;
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112 }
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113
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114 unsigned int GetTextHeight() const
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115 {
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116 return textHeight_;
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117 }
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118
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119 BitmapAnchor GetAnchor() const
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120 {
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121 return anchor_;
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122 }
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123 };
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124
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125 private:
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126 OpenGL::IOpenGLContext& context_;
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127 std::unique_ptr<OpenGL::OpenGLProgram> program_;
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128 GLint positionLocation_;
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129 GLint textureLocation_;
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130
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131 public:
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132 explicit OpenGLTextProgram(OpenGL::IOpenGLContext& context);
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133
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134 void Apply(OpenGL::OpenGLTexture& fontTexture,
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135 const Data& data,
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136 const AffineTransform2D& transform,
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137 unsigned int canvasWidth,
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138 unsigned int canvasHeight);
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139 };
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140 }
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141 }