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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#ifndef RENDERER_H
#define RENDERER_H
#include <QOpenGLFunctions>
#include <QOpenGLBuffer>
#include <QOpenGLShaderProgram>
#include <QVector3D>
#include <QMatrix4x4>
#include <QThread>
#include <QMutex>
#include <QWaitCondition>
#include <QElapsedTimer>
QT_FORWARD_DECLARE_CLASS(QOpenGLWidget)
class Renderer : public QObject, protected QOpenGLFunctions
{
Q_OBJECT
public:
explicit Renderer(QOpenGLWidget *w);
void lockRenderer() { m_renderMutex.lock(); }
void unlockRenderer() { m_renderMutex.unlock(); }
QMutex *grabMutex() { return &m_grabMutex; }
QWaitCondition *grabCond() { return &m_grabCond; }
void prepareExit() { m_exiting = true; m_grabCond.wakeAll(); }
signals:
void contextWanted();
public slots:
void render();
private:
void paintQtLogo();
void createGeometry();
void quad(qreal x1, qreal y1, qreal x2, qreal y2, qreal x3, qreal y3, qreal x4, qreal y4);
void extrude(qreal x1, qreal y1, qreal x2, qreal y2);
bool m_inited = false;
qreal m_fAngle = 0;
qreal m_fScale = 1;
QList<QVector3D> vertices;
QList<QVector3D> normals;
QOpenGLShaderProgram program;
QOpenGLBuffer vbo;
int vertexAttr = 0;
int normalAttr = 0;
int matrixUniform = 0;
QOpenGLWidget *m_glwidget = nullptr;
QMutex m_renderMutex;
QElapsedTimer m_elapsed;
QMutex m_grabMutex;
QWaitCondition m_grabCond;
bool m_exiting = false;
};
#endif // RENDERER_H
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