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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 QOPENGL_EXTENSIONS_P_H
#define QOPENGL_EXTENSIONS_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 Qt OpenGL classes. This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//
#include "qopenglfunctions.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
#if 0
#ifndef GL_ARB_vertex_buffer_object
typedef ptrdiff_t GLintptrARB;
typedef ptrdiff_t GLsizeiptrARB;
#endif
#endif
#ifndef GL_VERSION_2_0
typedef char GLchar;
#endif
class QOpenGLExtensionsPrivate;
class Q_GUI_EXPORT QOpenGLExtensions : public QOpenGLFunctions
{
Q_DECLARE_PRIVATE(QOpenGLExtensions)
public:
QOpenGLExtensions();
QOpenGLExtensions(QOpenGLContext *context);
~QOpenGLExtensions() {}
enum OpenGLExtension {
TextureRectangle = 0x00000001,
GenerateMipmap = 0x00000002,
TextureCompression = 0x00000004,
MirroredRepeat = 0x00000008,
FramebufferMultisample = 0x00000010,
StencilTwoSide = 0x00000020,
StencilWrap = 0x00000040,
PackedDepthStencil = 0x00000080,
NVFloatBuffer = 0x00000100,
PixelBufferObject = 0x00000200,
FramebufferBlit = 0x00000400,
BGRATextureFormat = 0x00000800,
DDSTextureCompression = 0x00001000,
ETC1TextureCompression = 0x00002000,
PVRTCTextureCompression = 0x00004000,
ElementIndexUint = 0x00008000,
Depth24 = 0x00010000,
SRGBFrameBuffer = 0x00020000,
MapBuffer = 0x00040000,
GeometryShaders = 0x00080000
};
Q_DECLARE_FLAGS(OpenGLExtensions, OpenGLExtension)
OpenGLExtensions openGLExtensions();
bool hasOpenGLExtension(QOpenGLExtensions::OpenGLExtension extension) const;
void initializeGLExtensions();
GLvoid *glMapBuffer(GLenum target, GLenum access);
GLboolean glUnmapBuffer(GLenum target);
void glBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter);
void glRenderbufferStorageMultisample(GLenum target, GLsizei samples,
GLenum internalFormat,
GLsizei width, GLsizei height);
void glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
private:
static bool isInitialized(const QOpenGLFunctionsPrivate *d) { return d != 0; }
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QOpenGLExtensions::OpenGLExtensions)
class QOpenGLExtensionsPrivate : public QOpenGLFunctionsPrivate
{
public:
explicit QOpenGLExtensionsPrivate(QOpenGLContext *ctx);
GLvoid* (QOPENGLF_APIENTRYP MapBuffer)(GLenum target, GLenum access);
GLboolean (QOPENGLF_APIENTRYP UnmapBuffer)(GLenum target);
void (QOPENGLF_APIENTRYP BlitFramebuffer)(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter);
void (QOPENGLF_APIENTRYP RenderbufferStorageMultisample)(GLenum target, GLsizei samples,
GLenum internalFormat,
GLsizei width, GLsizei height);
void (QOPENGLF_APIENTRYP GetBufferSubData)(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data);
};
inline GLvoid *QOpenGLExtensions::glMapBuffer(GLenum target, GLenum access)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
GLvoid *result = d->MapBuffer(target, access);
Q_OPENGL_FUNCTIONS_DEBUG
return result;
}
inline GLboolean QOpenGLExtensions::glUnmapBuffer(GLenum target)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
GLboolean result = d->UnmapBuffer(target);
Q_OPENGL_FUNCTIONS_DEBUG
return result;
}
inline void QOpenGLExtensions::glBlitFramebuffer(GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
GLbitfield mask, GLenum filter)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
d->BlitFramebuffer(srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, mask, filter);
Q_OPENGL_FUNCTIONS_DEBUG
}
inline void QOpenGLExtensions::glRenderbufferStorageMultisample(GLenum target, GLsizei samples,
GLenum internalFormat,
GLsizei width, GLsizei height)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
d->RenderbufferStorageMultisample(target, samples, internalFormat, width, height);
Q_OPENGL_FUNCTIONS_DEBUG
}
inline void QOpenGLExtensions::glGetBufferSubData(GLenum target, qopengl_GLintptr offset, qopengl_GLsizeiptr size, GLvoid *data)
{
Q_D(QOpenGLExtensions);
Q_ASSERT(QOpenGLExtensions::isInitialized(d));
d->GetBufferSubData(target, offset, size, data);
Q_OPENGL_FUNCTIONS_DEBUG
}
QT_END_NAMESPACE
QT_END_HEADER
#endif // QOPENGL_EXTENSIONS_P_H
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