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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.
**
** $QT_BEGIN_LICENSE:LGPL$
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** accordance with the commercial license agreement provided with the
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** 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
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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****************************************************************************/
#ifndef QOPENGLBUFFER_H
#define QOPENGLBUFFER_H
#include <QtCore/qglobal.h>
#ifndef QT_NO_OPENGL
#include <QtCore/qscopedpointer.h>
#include <QtGui/qopengl.h>
QT_BEGIN_NAMESPACE
class QOpenGLBufferPrivate;
class Q_GUI_EXPORT QOpenGLBuffer
{
public:
enum Type
{
VertexBuffer = 0x8892, // GL_ARRAY_BUFFER
IndexBuffer = 0x8893, // GL_ELEMENT_ARRAY_BUFFER
PixelPackBuffer = 0x88EB, // GL_PIXEL_PACK_BUFFER
PixelUnpackBuffer = 0x88EC // GL_PIXEL_UNPACK_BUFFER
};
QOpenGLBuffer();
explicit QOpenGLBuffer(QOpenGLBuffer::Type type);
QOpenGLBuffer(const QOpenGLBuffer &other);
~QOpenGLBuffer();
QOpenGLBuffer &operator=(const QOpenGLBuffer &other);
enum UsagePattern
{
StreamDraw = 0x88E0, // GL_STREAM_DRAW
StreamRead = 0x88E1, // GL_STREAM_READ
StreamCopy = 0x88E2, // GL_STREAM_COPY
StaticDraw = 0x88E4, // GL_STATIC_DRAW
StaticRead = 0x88E5, // GL_STATIC_READ
StaticCopy = 0x88E6, // GL_STATIC_COPY
DynamicDraw = 0x88E8, // GL_DYNAMIC_DRAW
DynamicRead = 0x88E9, // GL_DYNAMIC_READ
DynamicCopy = 0x88EA // GL_DYNAMIC_COPY
};
enum Access
{
ReadOnly = 0x88B8, // GL_READ_ONLY
WriteOnly = 0x88B9, // GL_WRITE_ONLY
ReadWrite = 0x88BA // GL_READ_WRITE
};
QOpenGLBuffer::Type type() const;
QOpenGLBuffer::UsagePattern usagePattern() const;
void setUsagePattern(QOpenGLBuffer::UsagePattern value);
bool create();
bool isCreated() const;
void destroy();
bool bind();
void release();
static void release(QOpenGLBuffer::Type type);
GLuint bufferId() const;
int size() const;
bool read(int offset, void *data, int count);
void write(int offset, const void *data, int count);
void allocate(const void *data, int count);
inline void allocate(int count) { allocate(0, count); }
void *map(QOpenGLBuffer::Access access);
bool unmap();
private:
QOpenGLBufferPrivate *d_ptr;
Q_DECLARE_PRIVATE(QOpenGLBuffer)
};
QT_END_NAMESPACE
#endif // QT_NO_OPENGL
#endif
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