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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the plugins 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWINDOWSDIRECT2DWINDOW_H
#define QWINDOWSDIRECT2DWINDOW_H

#include "qwindowswindow.h"
#include "qwindowsdirect2dbitmap.h"

#include <dxgi1_2.h>
#include <wrl.h>

QT_BEGIN_NAMESPACE

class QWindowsDirect2DWindow : public QWindowsWindow
{
public:
    QWindowsDirect2DWindow(QWindow *window, const QWindowsWindowData &data);
    ~QWindowsDirect2DWindow();

    void setWindowFlags(Qt::WindowFlags flags) Q_DECL_OVERRIDE;

    QPixmap *pixmap();
    void flush(QWindowsDirect2DBitmap *bitmap, const QRegion &region, const QPoint &offset);
    void present(const QRegion &region);
    void setupSwapChain();
    void resizeSwapChain(const QSize &size);

    QSharedPointer<QWindowsDirect2DBitmap> copyBackBuffer() const;

private:
    void setupBitmap();

private:
    Microsoft::WRL::ComPtr<IDXGISwapChain1> m_swapChain;
    Microsoft::WRL::ComPtr<ID2D1DeviceContext> m_deviceContext;
    QScopedPointer<QWindowsDirect2DBitmap> m_bitmap;
    QScopedPointer<QPixmap> m_pixmap;
    bool m_needsFullFlush;
    bool m_directRendering;
};

QT_END_NAMESPACE

#endif // QWINDOWSDIRECT2DWINDOW_H