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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 QtOpenVG module 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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QVG_P_H
#define QVG_P_H
#include "qvg.h"
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of other Qt classes. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtGui/qimage.h>
#if !defined(QT_NO_EGL)
#include <QtGui/private/qegl_p.h>
#endif
QT_BEGIN_NAMESPACE
class QVGPaintEngine;
#if !defined(QT_NO_EGL)
class QEglContext;
// Create an EGL context, but don't bind it to a surface. If single-context
// mode is enabled, this will return the previously-created context.
Q_OPENVG_EXPORT QEglContext *qt_vg_create_context(QPaintDevice *device);
// Destroy an EGL context that was created by qt_vg_create_context().
// If single-context mode is enabled, this will decrease the reference count.
Q_OPENVG_EXPORT void qt_vg_destroy_context(QEglContext *context);
// Return the shared pbuffer surface that can be made current to
// destroy VGImage objects when there is no other surface available.
Q_OPENVG_EXPORT EGLSurface qt_vg_shared_surface(void);
// Make a context current with a specific surface.
Q_OPENVG_EXPORT void qt_vg_make_current(QEglContext *context, EGLSurface surface);
// Make a context uncurrent.
Q_OPENVG_EXPORT void qt_vg_done_current(QEglContext *context, bool force = false);
// Destroy a surface that was previously associated with a context.
Q_OPENVG_EXPORT void qt_vg_destroy_surface(QEglContext *context, EGLSurface surface);
// Convert the configuration format in a context to a VG or QImage format.
Q_OPENVG_EXPORT VGImageFormat qt_vg_config_to_vg_format(QEglContext *context);
Q_OPENVG_EXPORT QImage::Format qt_vg_config_to_image_format(QEglContext *context);
#endif
// Create a paint engine. Returns the common engine in single-context mode.
Q_OPENVG_EXPORT QVGPaintEngine *qt_vg_create_paint_engine(void);
// Destroy a paint engine. Does nothing in single-context mode.
Q_OPENVG_EXPORT void qt_vg_destroy_paint_engine(QVGPaintEngine *engine);
// Convert between QImage and VGImage format values.
Q_OPENVG_EXPORT VGImageFormat qt_vg_image_to_vg_format(QImage::Format format);
QT_END_NAMESPACE
#endif
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