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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "renderthread.h"
#include "renderer.h"
#include "renderview.h"
#include "renderlogging.h"
#include <QEventLoop>
#include <QTime>
#include <QMutexLocker>
QT_BEGIN_NAMESPACE
namespace Qt3D {
namespace Render {
RenderThread::RenderThread(Renderer *renderer)
: QThread()
, m_renderer(renderer)
{
}
// Called by Renderer in the AspectThread
void RenderThread::waitForStart( Priority priority )
{
qCDebug(Render::Backend) << "Starting Render thread and then going to sleep until it is ready for us...";
QMutexLocker lock(&m_mutex);
start( priority );
m_waitCondition.wait( &m_mutex );
qCDebug(Render::Backend) << "Render thread is now ready & calling thread is now awake again";
}
// RenderThread context
void RenderThread::run()
{
m_mutex.lock();
// We lock the renderer's mutex before unlocking the render thread mutex
// To ensure that the Renderer's initialize waitCondition is setup while other threads
// are still waiting for this RenderThread's waitCondition to be satisfied
QMutexLocker locker(m_renderer->mutex());
m_waitCondition.wakeOne();
m_mutex.unlock();
// Renderer waits for a surface to be set
m_renderer->initialize();
locker.unlock();
m_renderer->render();
qCDebug(Render::Backend) << "Exiting RenderThread";
}
} // Render
} // Qt3D
QT_END_NAMESPACE
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