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/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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** This file is part of the plugins of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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****************************************************************************/
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#include "qfbbackingstore_p.h"
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#include "qfbwindow_p.h"
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#include "qfbscreen_p.h"
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#include <qpa/qplatformwindow.h>
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#include <QtGui/qscreen.h>
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#include <QtGui/qpainter.h>
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QFbBackingStore::QFbBackingStore(QWindow *window)
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: QPlatformBackingStore(window)
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(static_cast<QFbWindow *>(window->handle()))->setBackingStore(this);
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(static_cast<QFbScreen *>(window->screen()->handle()))->addPendingBackingStore(this);
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QFbBackingStore::~QFbBackingStore()
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void QFbBackingStore::flush(QWindow *window, const QRegion ®ion, const QPoint &offset)
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(static_cast<QFbWindow *>(window->handle()))->repaint(region);
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void QFbBackingStore::resize(const QSize &size, const QRegion &staticContents)
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Q_UNUSED(staticContents);
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if (mImage.size() != size)
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mImage = QImage(size, window()->screen()->handle()->format());
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const QImage QFbBackingStore::image()
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void QFbBackingStore::lock()
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void QFbBackingStore::unlock()
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void QFbBackingStore::beginPaint(const QRegion ®ion)
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if (mImage.hasAlphaChannel()) {
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p.setCompositionMode(QPainter::CompositionMode_Source);
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const QVector<QRect> rects = region.rects();
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for (QVector<QRect>::const_iterator it = rects.begin(); it != rects.end(); ++it)
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p.fillRect(*it, Qt::transparent);
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void QFbBackingStore::endPaint()