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// Copyright (C) 2016 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 "offscreensurfacehelper_p.h"
#include <Qt3DRender/private/abstractrenderer_p.h>
#include <QtGui/qoffscreensurface.h>
#include <QtGui/qsurfaceformat.h>
#include <QtCore/qcoreapplication.h>
#include <QtCore/qthread.h>
QT_BEGIN_NAMESPACE
namespace Qt3DRender {
namespace Render {
/*! \internal */
OffscreenSurfaceHelper::OffscreenSurfaceHelper(AbstractRenderer *renderer,
QObject *parent)
: QObject(parent)
, m_renderer(renderer)
, m_offscreenSurface(nullptr)
{
Q_ASSERT(renderer);
}
/*!
* \internal
* Called in context of main thread to create an offscreen surface
* which can later be made current with the Qt 3D OpenGL context to
* then allow graphics resources to be released cleanly.
*/
void OffscreenSurfaceHelper::createOffscreenSurface()
{
Q_ASSERT(QThread::currentThread() == QCoreApplication::instance()->thread());
m_offscreenSurface = new QOffscreenSurface;
m_offscreenSurface->setParent(this);
m_offscreenSurface->setFormat(m_renderer->format());
m_offscreenSurface->setScreen(m_renderer->screen());
m_offscreenSurface->create();
}
} // namespace Render
} // namespace Qt3DRender
QT_END_NAMESPACE
#include "moc_offscreensurfacehelper_p.cpp"