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// Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB)
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qopenglfunctions_es2.h"
#include "qopenglcontext.h"
QT_BEGIN_NAMESPACE
/*!
\class QOpenGLFunctions_ES2
\inmodule QtOpenGL
\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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