/****************************************************************************
**
** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
** 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.
**
**
** $QT_END_LICENSE$
**
**
** This file was generated by glgen version 0.1
** Command line was: glgen
**
** glgen is Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
**
** This is an auto-generated file.
** Do not edit! All changes made to it will be lost.
**
****************************************************************************/

#ifndef QOPENGLEXTENSIONS_H
#define QOPENGLEXTENSIONS_H

#ifndef QT_NO_OPENGL

#include <QtCore/QtGlobal>
#include <QtGui/qopengl.h>

class QOpenGLContext;

QT_BEGIN_NAMESPACE

#if 0
// silence syncqt warnings
#pragma qt_class(QOpenGLExtensions)
#pragma qt_sync_stop_processing
#endif

#if !defined(QT_OPENGL_ES_2)
// This block is copied from glext.h and defines the types needed by
// a few extension classes. This may need updating in glgen when a new
// OpenGL release is made and this file is regenerated.

#include <stddef.h>
#ifndef GL_VERSION_2_0
/* GL type for program/shader text */
typedef char GLchar;
#endif

#ifndef GL_VERSION_1_5
/* GL types for handling large vertex buffer objects */
typedef ptrdiff_t GLintptr;
typedef ptrdiff_t GLsizeiptr;
#endif

#ifndef GL_ARB_vertex_buffer_object
/* GL types for handling large vertex buffer objects */
typedef ptrdiff_t GLintptrARB;
typedef ptrdiff_t GLsizeiptrARB;
#endif

#ifndef GL_ARB_shader_objects
/* GL types for program/shader text and shader object handles */
typedef char GLcharARB;
typedef unsigned int GLhandleARB;
#endif

/* GL type for "half" precision (s10e5) float data in host memory */
#ifndef GL_ARB_half_float_pixel
typedef unsigned short GLhalfARB;
#endif

#ifndef GL_NV_half_float
typedef unsigned short GLhalfNV;
#endif

#ifndef GLEXT_64_TYPES_DEFINED
/* This code block is duplicated in glxext.h, so must be protected */
#define GLEXT_64_TYPES_DEFINED
/* Define int32_t, int64_t, and uint64_t types for UST/MSC */
/* (as used in the GL_EXT_timer_query extension). */
#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
#include <inttypes.h>
#elif defined(__sun__) || defined(__digital__)
#include <inttypes.h>
#if defined(__STDC__)
#if defined(__arch64__) || defined(_LP64)
typedef long int int64_t;
typedef unsigned long int uint64_t;
#else
typedef long long int int64_t;
typedef unsigned long long int uint64_t;
#endif /* __arch64__ */
#endif /* __STDC__ */
#elif defined( __VMS ) || defined(__sgi)
#include <inttypes.h>
#elif defined(__SCO__) || defined(__USLC__)
#include <stdint.h>
#elif defined(__UNIXOS2__) || defined(__SOL64__)
typedef long int int32_t;
typedef long long int int64_t;
typedef unsigned long long int uint64_t;
#elif defined(_WIN32) && defined(__GNUC__)
#include <stdint.h>
#elif defined(_WIN32)
typedef __int32 int32_t;
typedef __int64 int64_t;
typedef unsigned __int64 uint64_t;
#else
/* Fallback if nothing above works */
#include <inttypes.h>
#endif
#endif

#ifndef GL_EXT_timer_query
typedef int64_t GLint64EXT;
typedef uint64_t GLuint64EXT;
#endif

#ifndef GL_ARB_sync
typedef int64_t GLint64;
typedef uint64_t GLuint64;
typedef struct __GLsync *GLsync;
#endif

#ifndef GL_ARB_cl_event
/* These incomplete types let us declare types compatible with OpenCL's cl_context and cl_event */
struct _cl_context;
struct _cl_event;
#endif

#ifndef GL_ARB_debug_output
typedef void (APIENTRY *GLDEBUGPROCARB)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
#endif

#ifndef GL_AMD_debug_output
typedef void (APIENTRY *GLDEBUGPROCAMD)(GLuint id,GLenum category,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
#endif

#ifndef GL_KHR_debug
typedef void (APIENTRY *GLDEBUGPROC)(GLenum source,GLenum type,GLuint id,GLenum severity,GLsizei length,const GLchar *message,GLvoid *userParam);
#endif

#ifndef GL_NV_vdpau_interop
typedef GLintptr GLvdpauSurfaceNV;
#endif

// End of block copied from glext.h
#endif

struct QOpenGLFunctionsPrivate;

class QAbstractOpenGLExtensionPrivate
{
public:
    QAbstractOpenGLExtensionPrivate() : initialized(false) {}
    bool initialized;
};

class QAbstractOpenGLExtension
{
public:
    virtual ~QAbstractOpenGLExtension();

    virtual bool initializeOpenGLFunctions();

    Q_DECLARE_PRIVATE(QAbstractOpenGLExtension)

protected:
    bool isInitialized() const;

    QAbstractOpenGLExtension() {}
    QAbstractOpenGLExtension(QAbstractOpenGLExtensionPrivate &dd) : d_ptr(&dd) {}
    QAbstractOpenGLExtensionPrivate *d_ptr;
};

#if !defined(QT_OPENGL_ES_2)