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diff --git a/src/gui/kernel/qplatformscreenpageflipper.cpp b/src/gui/kernel/qplatformscreenpageflipper.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
-** Contact: http://www.qt-project.org/legal
-**
-** This file is part of the QtGui 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 Digia. For licensing terms and
-** conditions see http://qt.digia.com/licensing. For further information
-** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Digia gives you certain additional
-** rights. These rights are described in the Digia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qplatformscreenpageflipper.h"
-
-QT_BEGIN_NAMESPACE
-
-/*!
- \class QPlatformScreenBuffer
- \since 5.0
- \internal
- \preliminary
- \ingroup qpa
-
- \brief The QPlatformScreenBuffer class provides an abstraction for screen buffers.
- */
-QPlatformScreenBuffer::QPlatformScreenBuffer()
- : m_destroyed(false)
- , m_ready(true)
-{
-
-}
-
-QPlatformScreenBuffer::~QPlatformScreenBuffer()
-{
-
-}
-
-bool QPlatformScreenBuffer::isDestroyed() const
-{
- return m_destroyed;
-}
-
-bool QPlatformScreenBuffer::isReady() const
-{
- return m_ready;
-}
-
-void QPlatformScreenBuffer::aboutToBeDisplayed()
-{
-}
-
-void QPlatformScreenBuffer::displayed()
-{
-}
-
-
-/*!
- \class QPlatformScreenPageFlipper
- \since 5.0
- \internal
- \preliminary
- \ingroup qpa
-
- \brief The QPlatformScreenPageFlipper class provides an abstract interface for display buffer swapping
-
- Implement the displayBuffer() function to initiate a buffer swap. The
- bufferDisplayed() signal should be emitted once the buffer is actually displayed on
- the screen. The bufferReleased() signal should be emitted when the buffer data is no
- longer owned by the display hardware.
-*/
-
-QPlatformScreenPageFlipper::QPlatformScreenPageFlipper(QObject *parent)
- :QObject(parent)
-{
-
-}
-
-/*!
- \fn bool QPlatformScreenPageFlipper::displayBuffer(QPlatformScreenBuffer *buffer)
-
- Implemented in subclasses to display \a buffer directly on the screen. Returns \c true
- if it is possible to display the buffer, and \c false if the buffer cannot be displayed.
-
- If this function returns \c true, the buffer must not be modified or destroyed before the
- bufferReleased() signal is emitted. The signal bufferDisplayed() is emitted when the buffer
- is displayed on the screen. The two signals may be emitted in either order.
-
- This function is allowed to block.
-*/
-
-QT_END_NAMESPACE
-