comparison: src/gl/basicshaderprogram.cpp
src/gl/basicshaderprogram.cpp
- changeset 70
- f21b800b02a4
- child 118
- 8e1c9f18ae15
equal
deleted
inserted
replaced
| 69:a36913fc552a | 70:f21b800b02a4 |
|---|---|
| 1 /* | |
| 2 * LDForge: LDraw parts authoring CAD | |
| 3 * Copyright (C) 2020 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 #include "basicshaderprogram.h" | |
| 20 | |
| 21 AbstractBasicShaderProgram::AbstractBasicShaderProgram(QObject* parent) : | |
| 22 QObject{parent}, | |
| 23 buffer{QOpenGLBuffer::VertexBuffer}, | |
| 24 vertexShader{QOpenGLShader::Vertex}, | |
| 25 fragmentShader{QOpenGLShader::Fragment} | |
| 26 { | |
| 27 } | |
| 28 | |
| 29 void AbstractBasicShaderProgram::initialize() | |
| 30 { | |
| 31 if (not isInitialized) | |
| 32 { | |
| 33 this->initializeOpenGLFunctions(); | |
| 34 this->isInitialized = true; | |
| 35 this->program.emplace(this); | |
| 36 gl::buildShaders(&*this->program, this->vertexShaderSource(), this->fragmentShaderSource()); | |
| 37 this->program->bind(); | |
| 38 this->buffer.create(); | |
| 39 this->buffer.bind(); | |
| 40 this->buffer.setUsagePattern(QOpenGLBuffer::StaticDraw); | |
| 41 this->buffer.allocate(this->vertexData(), this->vertexCount() * this->vertexSize()); | |
| 42 this->vertexArrayObject.create(); | |
| 43 this->vertexArrayObject.bind(); | |
| 44 this->setupVertexArrays(); | |
| 45 this->vertexArrayObject.release(); | |
| 46 this->buffer.release(); | |
| 47 this->program->release(); | |
| 48 this->checkForGLErrors(); | |
| 49 } | |
| 50 } | |
| 51 | |
| 52 void AbstractBasicShaderProgram::setViewMatrix(const glm::mat4& newViewMatrix) | |
| 53 { | |
| 54 this->setMatrix("view", newViewMatrix); | |
| 55 } | |
| 56 | |
| 57 void AbstractBasicShaderProgram::setProjectionMatrix(const glm::mat4& newProjectionMatrix) | |
| 58 { | |
| 59 this->setMatrix("projection", newProjectionMatrix); | |
| 60 } | |
| 61 | |
| 62 void AbstractBasicShaderProgram::setModelMatrix(const glm::mat4& newModelMatrix) | |
| 63 { | |
| 64 this->setMatrix("model", newModelMatrix); | |
| 65 } | |
| 66 | |
| 67 void AbstractBasicShaderProgram::setMatrix(const char* name, const glm::mat4& matrix) | |
| 68 { | |
| 69 Q_ASSERT(this->isInitialized); | |
| 70 this->program->bind(); | |
| 71 this->program->setUniformMatrix(name, matrix); | |
| 72 this->program->release(); | |
| 73 this->checkForGLErrors(); | |
| 74 } | |
| 75 | |
| 76 void AbstractBasicShaderProgram::draw() | |
| 77 { | |
| 78 this->program->bind(); | |
| 79 this->vertexArrayObject.bind(); | |
| 80 glDrawArrays(this->drawMode(), 0, this->vertexCount()); | |
| 81 this->vertexArrayObject.release(); | |
| 82 this->program->release(); | |
| 83 this->checkForGLErrors(); | |
| 84 } | |
| 85 | |
| 86 void AbstractBasicShaderProgram::teardown() | |
| 87 { | |
| 88 this->vertexArrayObject.destroy(); | |
| 89 this->buffer.destroy(); | |
| 90 this->program.reset(); | |
| 91 } | |
| 92 | |
| 93 void AbstractBasicShaderProgram::checkForGLErrors() | |
| 94 { | |
| 95 gl::checkForGLErrors(qobject_cast<QWidget*>(this->parent())); | |
| 96 } |
