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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 QtGui module 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 QOPENGLCONTEXT_H
#define QOPENGLCONTEXT_H
#ifndef QT_NO_OPENGL
#include <QtCore/qnamespace.h>
#include <QtCore/QObject>
#include <QtCore/QScopedPointer>
#include <QtGui/QSurfaceFormat>
#ifdef __GLEW_H__
#if defined(Q_CC_GNU)
#warning qopenglfunctions.h is not compatible with GLEW, GLEW defines will be undefined
#warning To use GLEW with Qt, do not include <qopengl.h> or <QOpenGLFunctions> after glew.h
#endif
#endif
#include <QtGui/qopengl.h>
QT_BEGIN_NAMESPACE
class QOpenGLContextPrivate;
class QOpenGLContextGroupPrivate;
class QOpenGLFunctions;
class QPlatformOpenGLContext;
class QScreen;
class QSurface;
class Q_GUI_EXPORT QOpenGLContextGroup : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QOpenGLContextGroup)
public:
~QOpenGLContextGroup();
QList<QOpenGLContext *> shares() const;
static QOpenGLContextGroup *currentContextGroup();
private:
QOpenGLContextGroup();
friend class QOpenGLContext;
friend class QOpenGLContextGroupResourceBase;
friend class QOpenGLSharedResource;
friend class QOpenGLMultiGroupSharedResource;
};
class Q_GUI_EXPORT QOpenGLContext : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QOpenGLContext)
public:
explicit QOpenGLContext(QObject *parent = 0);
~QOpenGLContext();
void setFormat(const QSurfaceFormat &format);
void setShareContext(QOpenGLContext *shareContext);
void setScreen(QScreen *screen);
bool create();
bool isValid() const;
QSurfaceFormat format() const;
QOpenGLContext *shareContext() const;
QOpenGLContextGroup *shareGroup() const;
QScreen *screen() const;
GLuint defaultFramebufferObject() const;
bool makeCurrent(QSurface *surface);
void doneCurrent();
void swapBuffers(QSurface *surface);
QFunctionPointer getProcAddress(const QByteArray &procName) const;
QSurface *surface() const;
static QOpenGLContext *currentContext();
static bool areSharing(QOpenGLContext *first, QOpenGLContext *second);
QPlatformOpenGLContext *handle() const;
QPlatformOpenGLContext *shareHandle() const;
QOpenGLFunctions *functions() const;
QSet<QByteArray> extensions() const;
bool hasExtension(const QByteArray &extension) const;
Q_SIGNALS:
void aboutToBeDestroyed();
private:
friend class QGLContext;
friend class QGLPixelBuffer;
friend class QOpenGLContextResourceBase;
friend class QOpenGLPaintDevice;
friend class QOpenGLGlyphTexture;
friend class QOpenGLTextureGlyphCache;
friend class QOpenGLEngineShaderManager;
friend class QOpenGLFramebufferObject;
friend class QOpenGLFramebufferObjectPrivate;
friend class QOpenGL2PaintEngineEx;
friend class QOpenGL2PaintEngineExPrivate;
friend class QSGDistanceFieldGlyphCache;
friend class QWidgetPrivate;
void *qGLContextHandle() const;
void setQGLContextHandle(void *handle,void (*qGLContextDeleteFunction)(void *));
void deleteQGLContext();
void destroy();
};
QT_END_NAMESPACE
#endif // QT_NO_OPENGL
#endif // QGUIGLCONTEXT_H
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