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/****************************************************************************
**
** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
** Contact: https://www.qt.io/licensing/
**
** 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 The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/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 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLQUERYHELPER_P_H
#define QOPENGLQUERYHELPER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qglobal.h>
#if !defined(QT_OPENGL_ES_2)
#include <QtGui/QOpenGLContext>
QT_BEGIN_NAMESPACE
// Helper class used by QOpenGLTimerQuery and later will be used by
// QOpenGLOcclusionQuery
class QOpenGLQueryHelper
{
public:
QOpenGLQueryHelper(QOpenGLContext *context)
: GetQueryObjectuiv(0),
GetQueryObjectiv(0),
GetQueryiv(0),
EndQuery(0),
BeginQuery(0),
IsQuery(0),
DeleteQueries(0),
GenQueries(0),
GetInteger64v(0),
GetQueryObjectui64v(0),
GetQueryObjecti64v(0),
QueryCounter(0)
{
Q_ASSERT(context);
// Core in OpenGL >=1.5
GetQueryObjectuiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint *)>(context->getProcAddress("glGetQueryObjectuiv"));
GetQueryObjectiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint *)>(context->getProcAddress("glGetQueryObjectiv"));
GetQueryiv = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLenum , GLint *)>(context->getProcAddress("glGetQueryiv"));
EndQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum )>(context->getProcAddress("glEndQuery"));
BeginQuery = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLuint )>(context->getProcAddress("glBeginQuery"));
IsQuery = reinterpret_cast<GLboolean (QOPENGLF_APIENTRYP)(GLuint )>(context->getProcAddress("glIsQuery"));
DeleteQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , const GLuint *)>(context->getProcAddress("glDeleteQueries"));
GenQueries = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLsizei , GLuint *)>(context->getProcAddress("glGenQueries"));
// Core in OpenGL >=3.2
GetInteger64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLenum , GLint64 *)>(context->getProcAddress("glGetInteger64v"));
// Core in OpenGL >=3.3 / ARB_timer_query
GetQueryObjectui64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLuint64 *)>(context->getProcAddress("glGetQueryObjectui64v"));
GetQueryObjecti64v = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum , GLint64 *)>(context->getProcAddress("glGetQueryObjecti64v"));
QueryCounter = reinterpret_cast<void (QOPENGLF_APIENTRYP)(GLuint , GLenum )>(context->getProcAddress("glQueryCounter"));
}
inline void glGetQueryObjectuiv(GLuint id, GLenum pname, GLuint *params)
{
GetQueryObjectuiv(id, pname, params);
}
inline void glGetQueryObjectiv(GLuint id, GLenum pname, GLint *params)
{
GetQueryObjectiv(id, pname, params);
}
inline void glGetQueryiv(GLenum target, GLenum pname, GLint *params)
{
GetQueryiv(target, pname, params);
}
inline void glEndQuery(GLenum target)
{
EndQuery(target);
}
inline void glBeginQuery(GLenum target, GLuint id)
{
BeginQuery(target, id);
}
inline GLboolean glIsQuery(GLuint id)
{
return IsQuery(id);
}
inline void glDeleteQueries(GLsizei n, const GLuint *ids)
{
DeleteQueries(n, ids);
}
inline void glGenQueries(GLsizei n, GLuint *ids)
{
GenQueries(n, ids);
}
inline void glGetInteger64v(GLenum pname, GLint64 *params)
{
GetInteger64v(pname, params);
}
inline void glGetQueryObjectui64v(GLuint id, GLenum pname, GLuint64 *params)
{
GetQueryObjectui64v(id, pname, params);
}
inline void glGetQueryObjecti64v(GLuint id, GLenum pname, GLint64 *params)
{
GetQueryObjecti64v(id, pname, params);
}
inline void glQueryCounter(GLuint id, GLenum target)
{
QueryCounter(id, target);
}
private:
// Core in OpenGL >=1.5
void (QOPENGLF_APIENTRYP GetQueryObjectuiv)(GLuint id, GLenum pname, GLuint *params);
void (QOPENGLF_APIENTRYP GetQueryObjectiv)(GLuint id, GLenum pname, GLint *params);
void (QOPENGLF_APIENTRYP GetQueryiv)(GLenum target, GLenum pname, GLint *params);
void (QOPENGLF_APIENTRYP EndQuery)(GLenum target);
void (QOPENGLF_APIENTRYP BeginQuery)(GLenum target, GLuint id);
GLboolean (QOPENGLF_APIENTRYP IsQuery)(GLuint id);
void (QOPENGLF_APIENTRYP DeleteQueries)(GLsizei n, const GLuint *ids);
void (QOPENGLF_APIENTRYP GenQueries)(GLsizei n, GLuint *ids);
// Core in OpenGL >=3.2
void (QOPENGLF_APIENTRYP GetInteger64v)(GLenum pname, GLint64 *params);
// Core in OpenGL >=3.3 and provided by ARB_timer_query
void (QOPENGLF_APIENTRYP GetQueryObjectui64v)(GLuint id, GLenum pname, GLuint64 *params);
void (QOPENGLF_APIENTRYP GetQueryObjecti64v)(GLuint id, GLenum pname, GLint64 *params);
void (QOPENGLF_APIENTRYP QueryCounter)(GLuint id, GLenum target);
};
QT_END_NAMESPACE
#endif
#endif // QOPENGLQUERYHELPER_P_H
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