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diff --git a/src/quick/scenegraph/qsgopengllayer_p.h b/src/quick/scenegraph/qsgopengllayer_p.h
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+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQuick 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 QSGOPENGLLAYER_P_H
+#define QSGOPENGLLAYER_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <private/qsgadaptationlayer_p.h>
+#include <private/qsgcontext_p.h>
+#include <private/qsgtexture_p.h>
+#include <qsgsimplerectnode.h>
+
+QT_BEGIN_NAMESPACE
+
+#define QSG_DEBUG_FBO_OVERLAY
+
+class QOpenGLFramebufferObject;
+class QSGDepthStencilBuffer;
+class QSGDefaultRenderContext;
+class QSGOpenGLLayerPrivate;
+
+class Q_QUICK_PRIVATE_EXPORT QSGOpenGLLayer : public QSGLayer
+{
+    Q_DECLARE_PRIVATE(QSGOpenGLLayer)
+    Q_OBJECT
+public:
+    QSGOpenGLLayer(QSGRenderContext *context);
+    ~QSGOpenGLLayer();
+
+    bool updateTexture() override;
+
+    // The item's "paint node", not effect node.
+    QSGNode *item() const { return m_item; }
+    void setItem(QSGNode *item) override;
+
+    QRectF rect() const { return m_rect; }
+    void setRect(const QRectF &rect) override;
+
+    QSize size() const { return m_size; }
+    void setSize(const QSize &size) override;
+
+    void setHasMipmaps(bool mipmap) override;
+
+    void bind() override;
+
+    bool hasAlphaChannel() const override;
+    bool hasMipmaps() const override;
+    int textureId() const override;
+    QSize textureSize() const override { return m_size; }
+
+    GLenum format() const { return m_format; }
+    void setFormat(GLenum format) override;
+
+    bool live() const { return bool(m_live); }
+    void setLive(bool live) override;
+
+    bool recursive() const { return bool(m_recursive); }
+    void setRecursive(bool recursive) override;
+
+    void setDevicePixelRatio(qreal ratio) override { m_device_pixel_ratio = ratio; }
+
+    bool mirrorHorizontal() const { return bool(m_mirrorHorizontal); }
+    void setMirrorHorizontal(bool mirror) override;
+
+    bool mirrorVertical() const { return bool(m_mirrorVertical); }
+    void setMirrorVertical(bool mirror) override;
+
+    void scheduleUpdate() override;
+
+    QImage toImage() const override;
+
+    QRectF normalizedTextureSubRect() const override;
+
+    int samples() const { return m_samples; }
+    void setSamples(int samples) override { m_samples = samples; }
+
+public Q_SLOTS:
+    void markDirtyTexture() override;
+    void invalidated() override;
+
+private:
+    void grab();
+
+    QSGNode *m_item;
+    QRectF m_rect;
+    QSize m_size;
+    qreal m_device_pixel_ratio;
+    GLenum m_format;
+
+    QSGRenderer *m_renderer;
+    QOpenGLFramebufferObject *m_fbo;
+    QOpenGLFramebufferObject *m_secondaryFbo;
+    QSharedPointer<QSGDepthStencilBuffer> m_depthStencilBuffer;
+
+    GLuint m_transparentTexture;
+
+#ifdef QSG_DEBUG_FBO_OVERLAY
+    QSGSimpleRectNode *m_debugOverlay;
+#endif
+
+    QSGDefaultRenderContext *m_context;
+    int m_samples;
+
+    uint m_mipmap : 1;
+    uint m_live : 1;
+    uint m_recursive : 1;
+    uint m_dirtyTexture : 1;
+    uint m_multisamplingChecked : 1;
+    uint m_multisampling : 1;
+    uint m_grab : 1;
+    uint m_mirrorHorizontal : 1;
+    uint m_mirrorVertical : 1;
+};
+
+class QSGOpenGLLayerPrivate : public QSGTexturePrivate
+{
+    Q_DECLARE_PUBLIC(QSGOpenGLLayer)
+public:
+    int comparisonKey() const override;
+};
+
+QT_END_NAMESPACE
+
+#endif // QSGOPENGLLAYER_P_H