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/****************************************************************************
**
** Copyright (C) 2008-2012 NVIDIA Corporation.
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt 3D Studio.
**
** $QT_BEGIN_LICENSE:GPL$
** 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 General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) 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.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-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "render/Qt3DSRenderContext.h"
#include "render/Qt3DSRenderSync.h"
#include "render/Qt3DSRenderBaseTypes.h"
#include "foundation/Qt3DSFoundation.h"
namespace qt3ds {
namespace render {
NVRenderSync::NVRenderSync(NVRenderContextImpl &context, NVFoundationBase &fnd)
: m_Context(context)
, m_Foundation(fnd)
, mRefCount(0)
, m_Backend(context.GetBackend())
, m_SyncHandle(NULL)
{
}
NVRenderSync::~NVRenderSync()
{
if (m_SyncHandle)
m_Backend->ReleaseSync(m_SyncHandle);
}
void NVRenderSync::Sync()
{
// On every sync call we need to create a new sync object
// A sync object can only be used once
// First delete the old object
// We can safely do this because it is actually not deleted until
// it is unused
if (m_SyncHandle)
m_Backend->ReleaseSync(m_SyncHandle);
m_SyncHandle =
m_Backend->CreateSync(NVRenderSyncType::GpuCommandsComplete, NVRenderSyncFlags());
}
void NVRenderSync::Wait()
{
// wait until the sync object is signaled or a timeout happens
if (m_SyncHandle)
m_Backend->WaitSync(m_SyncHandle, NVRenderCommandFlushFlags(), 0);
}
NVRenderSync *NVRenderSync::Create(NVRenderContextImpl &context)
{
if (!context.IsCommandSyncSupported())
return NULL;
NVRenderSync *retval = QT3DS_NEW(context.GetFoundation().getAllocator(),
NVRenderSync)(context, context.GetFoundation());
return retval;
}
}
}
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