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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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qopenglfunctions_es2.h"
#include "qopenglcontext.h"
QT_BEGIN_NAMESPACE
/*!
\class QOpenGLFunctions_ES2
\inmodule QtGui
\since 5.1
\wrapper
\brief The QOpenGLFunctions_ES2 class provides all functions for OpenGL ES 2.
This class is a wrapper for OpenGL ES 2 functions. See reference pages on
\l {http://www.khronos.org/opengles/sdk/docs/man/}{khronos.org} for
function documentation.
\sa QAbstractOpenGLFunctions
*/
QOpenGLFunctions_ES2::QOpenGLFunctions_ES2()
: QAbstractOpenGLFunctions()
, d_es2(0)
{
}
QOpenGLFunctions_ES2::~QOpenGLFunctions_ES2()
{
}
bool QOpenGLFunctions_ES2::initializeOpenGLFunctions()
{
if ( isInitialized() )
return true;
QOpenGLContext* context = QOpenGLContext::currentContext();
// If owned by a context object make sure it is current.
// Also check that current context is compatible
if (((owningContext() && owningContext() == context) || !owningContext())
&& QOpenGLFunctions_ES2::isContextCompatible(context))
{
// Nothing to do, just flag that we are initialized
QAbstractOpenGLFunctions::initializeOpenGLFunctions();
}
return isInitialized();
}
bool QOpenGLFunctions_ES2::isContextCompatible(QOpenGLContext *context)
{
Q_ASSERT(context);
QSurfaceFormat f = context->format();
const QPair<int, int> v = qMakePair(f.majorVersion(), f.minorVersion());
if (v < qMakePair(2, 0))
return false;
if (f.renderableType() != QSurfaceFormat::OpenGLES)
return false;
return true;
}
QOpenGLVersionProfile QOpenGLFunctions_ES2::versionProfile()
{
QOpenGLVersionProfile v;
return v;
}
QT_END_NAMESPACE
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