source: trunk/src/opengl/qgl_p.h@ 1028

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtOpenGL module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** 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.
**
** 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 have questions regarding the use of this file, please contact
** Nokia at [email protected].
** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QGL_P_H
#define QGL_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the QGLWidget class.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include "QtOpenGL/qgl.h"
#include "QtOpenGL/qglcolormap.h"
#include "QtCore/qmap.h"
#include "QtCore/qthread.h"
#include "QtCore/qthreadstorage.h"
#include "QtCore/qhash.h"
#include "QtCore/qatomic.h"
#include "private/qwidget_p.h"
#include "qcache.h"
#include "qglpaintdevice_p.h"

#ifndef QT_NO_EGL
#include <QtGui/private/qegl_p.h>
#endif

QT_BEGIN_NAMESPACE

class QGLContext;
class QGLOverlayWidget;
class QPixmap;
class QPixmapFilter;
#ifdef Q_WS_MAC
# ifdef qDebug
#   define old_qDebug qDebug
#   undef qDebug
# endif
QT_BEGIN_INCLUDE_NAMESPACE
#ifndef QT_MAC_USE_COCOA
# include <AGL/agl.h>
#endif
QT_END_INCLUDE_NAMESPACE
# ifdef old_qDebug
#   undef qDebug
#   define qDebug QT_NO_QDEBUG_MACRO
#   undef old_qDebug
# endif
class QMacWindowChangeEvent;
#endif

#ifdef Q_WS_QWS
class QWSGLWindowSurface;
#endif

#ifndef QT_NO_EGL
class QEglContext;
#endif

QT_BEGIN_INCLUDE_NAMESPACE
#include <QtOpenGL/private/qglextensions_p.h>
QT_END_INCLUDE_NAMESPACE

class QGLFormatPrivate
{
public:
    QGLFormatPrivate()
        : ref(1)
    {
        opts = QGL::DoubleBuffer | QGL::DepthBuffer | QGL::Rgba | QGL::DirectRendering
             | QGL::StencilBuffer | QGL::DeprecatedFunctions;
        pln = 0;
        depthSize = accumSize = stencilSize = redSize = greenSize = blueSize = alphaSize = -1;
        numSamples = -1;
        swapInterval = -1;
        majorVersion = 1;
        minorVersion = 0;
        profile = QGLFormat::NoProfile;
    }
    QGLFormatPrivate(const QGLFormatPrivate *other)
        : ref(1),
          opts(other->opts),
          pln(other->pln),
          depthSize(other->depthSize),
          accumSize(other->accumSize),
          stencilSize(other->stencilSize),
          redSize(other->redSize),
          greenSize(other->greenSize),
          blueSize(other->blueSize),
          alphaSize(other->alphaSize),
          numSamples(other->numSamples),
          swapInterval(other->swapInterval),
          majorVersion(other->majorVersion),
          minorVersion(other->minorVersion),
          profile(other->profile)
    {
    }
    QAtomicInt ref;
    QGL::FormatOptions opts;
    int pln;
    int depthSize;
    int accumSize;
    int stencilSize;
    int redSize;
    int greenSize;
    int blueSize;
    int alphaSize;
    int numSamples;
    int swapInterval;
    int majorVersion;
    int minorVersion;
    QGLFormat::OpenGLContextProfile profile;
};

class QGLWidgetPrivate : public QWidgetPrivate
{
    Q_DECLARE_PUBLIC(QGLWidget)
public:
    QGLWidgetPrivate() : QWidgetPrivate()
                       , disable_clear_on_painter_begin(false)
#ifdef Q_WS_QWS
                       , wsurf(0)
#endif
#if defined(Q_WS_X11) && !defined(QT_NO_EGL)
                       , eglSurfaceWindowId(0)
#endif
#if defined(Q_OS_SYMBIAN)
                       , eglSurfaceWindowId(0)
#endif
    {
        isGLWidget = 1;
    }

    ~QGLWidgetPrivate() {}

    void init(QGLContext *context, const QGLWidget* shareWidget);
    void initContext(QGLContext *context, const QGLWidget* shareWidget);
    bool renderCxPm(QPixmap *pixmap);
    void cleanupColormaps();
    void aboutToDestroy() {
        if (glcx)
            glcx->reset();
    }

    QGLContext *glcx;
    QGLWidgetGLPaintDevice glDevice;
    bool autoSwap;

    QGLColormap cmap;
#ifndef QT_OPENGL_ES
    QMap<QString, int> displayListCache;
#endif

    bool disable_clear_on_painter_begin;

#if defined(Q_WS_WIN)
    void updateColormap();
    QGLContext *olcx;
#elif defined(Q_WS_X11)
    QGLOverlayWidget *olw;
#ifndef QT_NO_EGL
    void recreateEglSurface();
    WId eglSurfaceWindowId;
#endif
#elif defined(Q_WS_MAC)
    QGLContext *olcx;
    void updatePaintDevice();
#elif defined(Q_WS_QWS)
    QWSGLWindowSurface *wsurf;
#endif
#ifdef Q_OS_SYMBIAN
    void recreateEglSurface();
    WId eglSurfaceWindowId;
#endif
};