Thu, 13 Feb 2020 12:51:27 +0200
added grid program
19 | 1 | /* |
2 | * LDForge: LDraw parts authoring CAD | |
3 | * Copyright (C) 2013 - 2018 Teemu Piippo | |
4 | * | |
5 | * This program is free software: you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, either version 3 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #pragma once | |
20 | #include <QColor> | |
53 | 21 | #include <QOpenGLBuffer> |
19 | 22 | #include <QOpenGLFunctions> |
53 | 23 | #include <QOpenGLShader> |
24 | #include <QOpenGLShaderProgram> | |
25 | #include <QOpenGLVertexArrayObject> | |
26 | #include <glm/gtc/type_ptr.hpp> | |
19 | 27 | #include "basics.h" |
28 | #include "colors.h" | |
29 | ||
30 | namespace gl | |
31 | { | |
32 | struct Polygon; | |
53 | 33 | class ShaderProgram; |
34 | ||
35 | void buildShaders( | |
36 | QOpenGLShaderProgram* shaderProgram, | |
37 | const char* vertexShaderSource, | |
38 | const char* fragmentShaderSource); | |
39 | void checkForGLErrors(QWidget* parent); | |
19 | 40 | } |
41 | ||
53 | 42 | class gl::ShaderProgram : public QOpenGLShaderProgram |
43 | { | |
44 | public: | |
45 | using QOpenGLShaderProgram::QOpenGLShaderProgram; | |
46 | // for some reason I cannot overload setUniformValue properly with this template thing | |
47 | template<typename Float, glm::qualifier Prec> | |
48 | void setUniformMatrix(const char* uniformName, const glm::mat<4, 4, Float, Prec>& value) | |
49 | { | |
50 | const float (*array)[4][4] = reinterpret_cast<const float(*)[4][4]>(glm::value_ptr(value)); | |
51 | this->setUniformValue(uniformName, *array); | |
52 | } | |
53 | template<int N, typename Float, glm::qualifier Prec> | |
54 | void setUniformVector(const char* uniformName, const glm::vec<N, Float, Prec>& value) | |
55 | { | |
56 | const Float (*array)[N] = reinterpret_cast<const Float(*)[N]>(glm::value_ptr(value)); | |
57 | this->setUniformValue(uniformName, array); | |
58 | } | |
59 | }; | |
60 | ||
19 | 61 | struct gl::Polygon |
62 | { | |
63 | enum Type : qint8 | |
64 | { | |
65 | EdgeLine, | |
66 | Triangle, | |
67 | Quadrilateral, | |
68 | ConditionalEdge | |
69 | }; | |
70 | Type type; | |
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71 | glm::vec3 vertices[4]; |
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72 | ldraw::Color color; |
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73 | ldraw::Id id; |
19 | 74 | |
75 | /** | |
76 | * @return amount of vertices used for geometry | |
77 | */ | |
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78 | inline unsigned int numPolygonVertices() const |
19 | 79 | { |
80 | if (type == Type::ConditionalEdge) | |
81 | return 2; | |
82 | else | |
83 | return numVertices(); | |
84 | } | |
85 | ||
86 | /** | |
87 | * @return amount of vertices | |
88 | */ | |
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89 | inline unsigned int numVertices() const |
19 | 90 | { |
91 | switch (type) | |
92 | { | |
93 | case Type::EdgeLine: | |
94 | return 2; | |
95 | case Type::Triangle: | |
96 | return 3; | |
97 | case Type::ConditionalEdge: | |
98 | case Type::Quadrilateral: | |
99 | return 4; | |
100 | } | |
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101 | return 0; |
19 | 102 | } |
103 | }; | |
104 | ||
105 | Q_DECLARE_METATYPE(gl::Polygon) | |
106 | ||
107 | namespace gl | |
108 | { | |
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109 | inline Polygon edgeLine(const glm::vec3& v_1, const glm::vec3& v_2, ldraw::Color color, ldraw::Id id) |
19 | 110 | { |
21 | 111 | return {Polygon::EdgeLine, {v_1, v_2}, color, id}; |
19 | 112 | } |
113 | ||
21 | 114 | inline Polygon triangle( |
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115 | const glm::vec3& v_1, |
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116 | const glm::vec3& v_2, |
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117 | const glm::vec3& v_3, |
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118 | ldraw::Color color, |
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119 | ldraw::Id id) |
19 | 120 | { |
21 | 121 | return {Polygon::Triangle, {v_1, v_2, v_3}, color, id}; |
19 | 122 | } |
123 | ||
124 | inline Polygon quadrilateral( | |
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125 | const glm::vec3& v_1, |
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126 | const glm::vec3& v_2, |
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127 | const glm::vec3& v_3, |
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128 | const glm::vec3& v_4, |
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129 | ldraw::Color color, |
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130 | ldraw::Id id) |
19 | 131 | { |
21 | 132 | return {Polygon::Quadrilateral, {v_1, v_2, v_3, v_4}, color, id}; |
19 | 133 | } |
134 | ||
135 | inline Polygon conditionalEdge( | |
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136 | const glm::vec3& v_1, |
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137 | const glm::vec3& v_2, |
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138 | const glm::vec3& control_1, |
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139 | const glm::vec3& control_2, |
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140 | ldraw::Color color, |
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141 | ldraw::Id id) |
19 | 142 | { |
21 | 143 | return {Polygon::ConditionalEdge, {v_1, v_2, control_1, control_2}, color, id}; |
19 | 144 | } |
145 | ||
146 | // Vbo names | |
26 | 147 | enum class ArrayClass : std::uint8_t |
19 | 148 | { |
149 | Lines, | |
150 | Triangles, | |
151 | Quads, | |
152 | ConditionalLines | |
153 | }; | |
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154 | |
26 | 155 | constexpr ArrayClass ARRAY_CLASSES[] = {ArrayClass::Lines, ArrayClass::Triangles, ArrayClass::Quads, ArrayClass::ConditionalLines}; |
156 | constexpr int NUM_ARRAY_CLASSES = countof(ARRAY_CLASSES); | |
19 | 157 | |
158 | enum class RenderStyle | |
159 | { | |
160 | Normal, | |
161 | Wireframe, | |
162 | BfcRedGreen, | |
46 | 163 | RandomColors, |
164 | PickScene | |
19 | 165 | }; |
37 | 166 | |
167 | // These are also defined in shaders | |
168 | enum class FragmentStyle | |
169 | { | |
170 | Normal = 0, | |
171 | BfcGreen = 1, | |
172 | BfcRed = 2, | |
173 | RandomColors = 3, | |
46 | 174 | Id = 4, |
37 | 175 | }; |
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176 | |
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177 | // User options for rendering |
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178 | struct RenderPreferences |
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179 | { |
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180 | gl::RenderStyle style = gl::RenderStyle::Normal; |
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181 | QColor mainColor{255, 255, 64}; |
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added configurable background color
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182 | QColor backgroundColor{48, 48, 48}; |
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183 | QColor selectedColor{32, 32, 255}; |
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184 | GLfloat lineThickness = 2.0f; |
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185 | bool lineAntiAliasing = true; |
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186 | }; |
19 | 187 | } |