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diff --git a/src/opengl/qopengltimerquery.h b/src/opengl/qopengltimerquery.h
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+/****************************************************************************
+**
+** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QOPENGLTIMERQUERY_H
+#define QOPENGLTIMERQUERY_H
+
+#include <QtOpenGL/qtopenglglobal.h>
+
+#if !defined(QT_NO_OPENGL) && !defined(QT_OPENGL_ES_2)
+
+#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;
+    QVector<GLuint> objectIds() const;
+
+    int recordSample();
+
+    bool isResultAvailable() const;
+
+    QVector<GLuint64> waitForSamples() const;
+    QVector<GLuint64> waitForIntervals() const;
+
+    void reset();
+
+private:
+    Q_DECLARE_PRIVATE(QOpenGLTimeMonitor)
+    Q_DISABLE_COPY(QOpenGLTimeMonitor)
+};
+
+QT_END_NAMESPACE
+
+#endif // QT_NO_OPENGL
+
+#endif // QOPENGLTIMERQUERY_H