comparison: src/gl/common.h
src/gl/common.h
- changeset 19
- ed9685f44ab3
- child 21
- 0133e565e072
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| 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> | |
| 21 #include <QOpenGLFunctions> | |
| 22 #include <QGenericMatrix> | |
| 23 #include "basics.h" | |
| 24 #include "colors.h" | |
| 25 #include "vertex.h" | |
| 26 | |
| 27 namespace gl | |
| 28 { | |
| 29 // Transformation matrices for projection cameras. | |
| 30 static const QMatrix4x4 topCameraMatrix = {}; | |
| 31 static const QMatrix4x4 frontCameraMatrix = {1, 0, 0, 0, 0, 0, 1, 0, 0, -1, 0, 0, 0, 0, 0, 1}; | |
| 32 static const QMatrix4x4 leftCameraMatrix = {0, -1, 0, 0, 0, 0, 1, 0, -1, 0, 0, 0, 0, 0, 0, 1}; | |
| 33 static const QMatrix4x4 bottomCameraMatrix = {1, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 1}; | |
| 34 static const QMatrix4x4 backCameraMatrix = {-1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1}; | |
| 35 static const QMatrix4x4 rightCameraMatrix = {0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1}; | |
| 36 | |
| 37 // Conversion matrix from LDraw to OpenGL coordinates. | |
| 38 static const QMatrix4x4 ldrawToGL = {1, 0, 0, 0, 0, 0, -1, 0, 0, 1, 0, 0, 0, 0, 0, 1}; | |
| 39 | |
| 40 static constexpr QRgb BlackRgb = 0xff000000; | |
| 41 static constexpr GLfloat near = 1.0f; | |
| 42 static constexpr GLfloat far = 10000.0f; | |
| 43 struct Polygon; | |
| 44 } | |
| 45 | |
| 46 struct gl::Polygon | |
| 47 { | |
| 48 enum Type : qint8 | |
| 49 { | |
| 50 EdgeLine, | |
| 51 Triangle, | |
| 52 Quadrilateral, | |
| 53 ConditionalEdge | |
| 54 }; | |
| 55 Type type; | |
| 56 Point3D vertices[4]; | |
| 57 Color color; | |
| 58 | |
| 59 /** | |
| 60 * @return amount of vertices used for geometry | |
| 61 */ | |
| 62 inline int numPolygonVertices() const | |
| 63 { | |
| 64 if (type == Type::ConditionalEdge) | |
| 65 return 2; | |
| 66 else | |
| 67 return numVertices(); | |
| 68 } | |
| 69 | |
| 70 /** | |
| 71 * @return amount of vertices | |
| 72 */ | |
| 73 inline int numVertices() const | |
| 74 { | |
| 75 switch (type) | |
| 76 { | |
| 77 case Type::EdgeLine: | |
| 78 return 2; | |
| 79 case Type::Triangle: | |
| 80 return 3; | |
| 81 case Type::ConditionalEdge: | |
| 82 case Type::Quadrilateral: | |
| 83 return 4; | |
| 84 default: | |
| 85 return 0; | |
| 86 } | |
| 87 } | |
| 88 }; | |
| 89 | |
| 90 Q_DECLARE_METATYPE(gl::Polygon) | |
| 91 | |
| 92 namespace gl | |
| 93 { | |
| 94 inline Polygon edgeLine(const Point3D& v_1, const Point3D& v_2, Color color) | |
| 95 { | |
| 96 return {Polygon::EdgeLine, {v_1, v_2}, color}; | |
| 97 } | |
| 98 | |
| 99 inline Polygon triangle(const Point3D& v_1, const Point3D& v_2, const Point3D& v_3, Color color) | |
| 100 { | |
| 101 return {Polygon::Triangle, {v_1, v_2, v_3}, color}; | |
| 102 } | |
| 103 | |
| 104 inline Polygon quadrilateral( | |
| 105 const Point3D& v_1, | |
| 106 const Point3D& v_2, | |
| 107 const Point3D& v_3, | |
| 108 const Point3D& v_4, | |
| 109 Color color) | |
| 110 { | |
| 111 return {Polygon::Quadrilateral, {v_1, v_2, v_3, v_4}, color}; | |
| 112 } | |
| 113 | |
| 114 inline Polygon conditionalEdge( | |
| 115 const Point3D& v_1, | |
| 116 const Point3D& v_2, | |
| 117 const Point3D& control_1, | |
| 118 const Point3D& control_2, | |
| 119 Color color) | |
| 120 { | |
| 121 return {Polygon::ConditionalEdge, {v_1, v_2, control_1, control_2}, color}; | |
| 122 } | |
| 123 | |
| 124 // Vbo names | |
| 125 enum class VboClass | |
| 126 { | |
| 127 Lines, | |
| 128 Triangles, | |
| 129 Quads, | |
| 130 ConditionalLines | |
| 131 }; | |
| 132 constexpr int numVboClasses = 4; | |
| 133 | |
| 134 // Types of vbo per object | |
| 135 enum class VboSubclass | |
| 136 { | |
| 137 Surfaces, | |
| 138 RegularColors, | |
| 139 PickColors, | |
| 140 BfcFrontColors, | |
| 141 BfcBackColors, | |
| 142 RandomColors, | |
| 143 Normals, | |
| 144 InvertedNormals | |
| 145 }; | |
| 146 constexpr int numVboSubclasses = 8; | |
| 147 | |
| 148 // Amount of vbos overall | |
| 149 constexpr int numVbos = gl::numVboClasses * gl::numVboSubclasses; | |
| 150 | |
| 151 enum class RenderStyle | |
| 152 { | |
| 153 Normal, | |
| 154 Wireframe, | |
| 155 BfcRedGreen, | |
| 156 RandomColors | |
| 157 }; | |
| 158 } |
