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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtOpenGL 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 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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QEGL_P_H
#define QEGL_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 "QtCore/qvarlengtharray.h"
#include "QtCore/qsize.h"
#include "QtGui/qimage.h"
#if defined(QT_OPENGL_ES) || defined(QT_OPENVG)
QT_BEGIN_INCLUDE_NAMESPACE
#if defined(QT_OPENGL_ES_2) || defined(QT_OPENVG)
#include <EGL/egl.h>
#else
#include <GLES/egl.h>
#endif
#if !defined(EGL_VERSION_1_3) && !defined(QEGL_NATIVE_TYPES_DEFINED)
#undef EGLNativeWindowType
#undef EGLNativePixmapType
#undef EGLNativeDisplayType
typedef NativeWindowType EGLNativeWindowType;
typedef NativePixmapType EGLNativePixmapType;
typedef NativeDisplayType EGLNativeDisplayType;
#define QEGL_NATIVE_TYPES_DEFINED 1
#endif
QT_END_INCLUDE_NAMESPACE
class QX11Info;
class QPaintDevice;
class QImage;
class QPixmap;
class QWidget;
QT_BEGIN_NAMESPACE
class Q_OPENGL_EXPORT QEglProperties
{
public:
QEglProperties();
QEglProperties(const QEglProperties& other) : props(other.props) {}
~QEglProperties() {}
int value(int name) const;
void setValue(int name, int value);
bool removeValue(int name);
const int *properties() const { return props.constData(); }
void setPixelFormat(QImage::Format pixelFormat);
#ifdef Q_WS_X11
void setVisualFormat(const QX11Info *xinfo);
#endif
void setRenderableType(int api);
bool reduceConfiguration();
QString toString() const;
private:
QVarLengthArray<int> props;
};
class Q_OPENGL_EXPORT QEglContext
{
public:
QEglContext();
~QEglContext();
enum API
{
OpenGL,
OpenVG
};
enum PixelFormatMatch
{
ExactPixelFormat,
BestPixelFormat
};
bool isValid() const;
bool isSharing() const;
void setApi(QEglContext::API api) { apiType = api; }
bool openDisplay(QPaintDevice *device);
bool chooseConfig(const QEglProperties& properties, PixelFormatMatch match = ExactPixelFormat);
bool createContext(QEglContext *shareContext = 0);
bool createSurface(QPaintDevice *device);
bool recreateSurface(QPaintDevice *device);
void setSurface(EGLSurface surface) { surf = surface; }
void destroy();
bool makeCurrent();
bool doneCurrent();
bool swapBuffers();
void waitNative();
void waitClient();
QSize surfaceSize() const;
bool configAttrib(int name, EGLint *value) const;
void clearError() const { eglGetError(); }
QEglContext::API api() const { return apiType; }
EGLDisplay display() const { return dpy; }
EGLContext context() const { return ctx; }
EGLSurface surface() const { return surf; }
EGLConfig config() const { return cfg; }
QEglProperties configProperties(EGLConfig cfg = 0) const;
static EGLDisplay defaultDisplay(QPaintDevice *device);
static QString errorString(int code);
void dumpAllConfigs();
private:
QEglContext::API apiType;
EGLDisplay dpy;
EGLContext ctx;
EGLSurface surf;
EGLConfig cfg;
bool share;
void *reserved; // For extension data in future versions.
static EGLDisplay getDisplay(QPaintDevice *device);
};
QT_END_NAMESPACE
#endif // QT_OPENGL_ES || QT_OPENVG
#endif // QEGL_P_H
|
