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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 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 QEGLCONVENIENCE_H
#define QEGLCONVENIENCE_H
#include <QtGui/QSurfaceFormat>
#include <QtCore/QVector>
#include <QtCore/QSizeF>
#include <EGL/egl.h>
QT_BEGIN_NAMESPACE
QVector<EGLint> q_createConfigAttributesFromFormat(const QSurfaceFormat &format);
bool q_reduceConfigAttributes(QVector<EGLint> *configAttributes);
EGLConfig q_configFromGLFormat(EGLDisplay display, const QSurfaceFormat &format, bool highestPixelFormat = false, int surfaceType = EGL_WINDOW_BIT);
QSurfaceFormat q_glFormatFromConfig(EGLDisplay display, const EGLConfig config, const QSurfaceFormat &referenceFormat = QSurfaceFormat());
bool q_hasEglExtension(EGLDisplay display,const char* extensionName);
void q_printEglConfig(EGLDisplay display, EGLConfig config);
#ifdef Q_OS_UNIX
QSizeF q_physicalScreenSizeFromFb(int framebufferDevice, const QSize &screenSize = QSize());
QSize q_screenSizeFromFb(int framebufferDevice);
int q_screenDepthFromFb(int framebufferDevice);
#endif
class QEglConfigChooser
{
public:
QEglConfigChooser(EGLDisplay display);
virtual ~QEglConfigChooser();
EGLDisplay display() const { return m_display; }
void setSurfaceType(EGLint surfaceType) { m_surfaceType = surfaceType; }
EGLint surfaceType() const { return m_surfaceType; }
void setSurfaceFormat(const QSurfaceFormat &format) { m_format = format; }
QSurfaceFormat surfaceFormat() const { return m_format; }
void setIgnoreColorChannels(bool ignore) { m_ignore = ignore; }
bool ignoreColorChannels() const { return m_ignore; }
EGLConfig chooseConfig();
protected:
virtual bool filterConfig(EGLConfig config) const;
private:
QSurfaceFormat m_format;
EGLDisplay m_display;
EGLint m_surfaceType;
bool m_ignore;
int m_confAttrRed;
int m_confAttrGreen;
int m_confAttrBlue;
int m_confAttrAlpha;
};
QT_END_NAMESPACE
#endif //QEGLCONVENIENCE_H
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