qopengltimerquery.h

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// Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QOPENGLTIMERQUERY_H
#define QOPENGLTIMERQUERY_H
 
#include <QtOpenGL/qtopenglglobal.h>
 
#if !defined(QT_NO_OPENGL) && !QT_CONFIG(opengles2)
 
#include <QtCore/QObject>
#include <QtGui/qopengl.h>
 
QT_BEGIN_NAMESPACE
 
class QOpenGLTimerQueryPrivate;
 
class Q_OPENGL_EXPORT QOpenGLTimerQuery : public QObject
{
    Q_OBJECT
 
public:
    explicit QOpenGLTimerQuery(QObject *parent = nullptr);
    ~QOpenGLTimerQuery();
 
    bool create();
    void destroy();
    bool isCreated() const;
    GLuint objectId() const;
 
    void begin();
    void end();
    GLuint64 waitForTimestamp() const;
    void recordTimestamp();
    bool isResultAvailable() const;
    GLuint64 waitForResult() const;
 
private:
    Q_DECLARE_PRIVATE(QOpenGLTimerQuery)
    Q_DISABLE_COPY(QOpenGLTimerQuery)
};
 
 
class QOpenGLTimeMonitorPrivate;
 
class Q_OPENGL_EXPORT QOpenGLTimeMonitor : public QObject
{
    Q_OBJECT
 
public:
    explicit QOpenGLTimeMonitor(QObject *parent = nullptr);
    ~QOpenGLTimeMonitor();
 
    void setSampleCount(int sampleCount);
    int sampleCount() const;
 
    bool create();
    void destroy();
    bool isCreated() const;
    QList<GLuint> objectIds() const;
 
    int recordSample();
 
    bool isResultAvailable() const;
 
    QList<GLuint64> waitForSamples() const;
    QList<GLuint64> waitForIntervals() const;
 
    void reset();
 
private:
    Q_DECLARE_PRIVATE(QOpenGLTimeMonitor)
    Q_DISABLE_COPY(QOpenGLTimeMonitor)
};
 
QT_END_NAMESPACE
 
#endif // QT_NO_OPENGL
 
#endif // QOPENGLTIMERQUERY_H