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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the plugins of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef PVREGLSCREEN_H
#define PVREGLSCREEN_H

#include <QScreen>
#include <QGLScreen>
#include "pvrqwsdrawable.h"

class PvrEglScreenSurfaceFunctions : public QGLScreenSurfaceFunctions
{
public:
    PvrEglScreenSurfaceFunctions(QScreen *s, int screenNum)
        : screen(s), displayId(screenNum) {}

    bool createNativeWindow(QWidget *widget, EGLNativeWindowType *native);

private:
    QScreen *screen;
    int displayId;
};

class PvrEglSurfaceHolder : public QObject
{
    Q_OBJECT
public:
    PvrEglSurfaceHolder(QObject *parent=0);
    ~PvrEglSurfaceHolder();

    void addSurface();
    void removeSurface();

private:
    int numRealSurfaces;
    PvrQwsDrawable *tempSurface;
    EGLDisplay dpy;
    EGLConfig config;
    EGLSurface surface;
};

class PvrEglScreen : public QGLScreen
{
public:
    PvrEglScreen(int displayId);
    ~PvrEglScreen();

    bool initDevice();
    bool connect(const QString &displaySpec);
    void disconnect();
    void shutdownDevice();
    void setMode(int, int, int) {}

    void blit(const QImage &img, const QPoint &topLeft, const QRegion &region);
    void solidFill(const QColor &color, const QRegion &region);

    bool chooseContext(QGLContext *context, const QGLContext *shareContext);
    bool hasOpenGL();

    QWSWindowSurface* createSurface(QWidget *widget) const;
    QWSWindowSurface* createSurface(const QString &key) const;

private:
    void sync();
    void openTty();
    void closeTty();

    int fd;
    int ttyfd, oldKdMode;
    PvrEglSurfaceHolder *holder;
    QString ttyDevice;
    bool doGraphicsMode;
};

#endif