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/****************************************************************************
**
** Copyright (C) 2018 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtWebEngine 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef COMPOSITOR_RESOURCE_FENCE_H
#define COMPOSITOR_RESOURCE_FENCE_H
#include <base/memory/ref_counted.h>
#include <ui/gl/gl_fence.h>
namespace QtWebEngineCore {
// Sync object created on GPU thread and consumed on render thread.
class CompositorResourceFence final : public base::RefCountedThreadSafe<CompositorResourceFence>
{
public:
REQUIRE_ADOPTION_FOR_REFCOUNTED_TYPE();
CompositorResourceFence() {}
CompositorResourceFence(const gl::TransferableFence &sync) : m_sync(sync) {}
~CompositorResourceFence() { release(); }
// May be used only by Qt Quick render thread.
void wait();
void release();
// May be used only by GPU thread.
static scoped_refptr<CompositorResourceFence> create(std::unique_ptr<gl::GLFence> glFence = nullptr);
private:
gl::TransferableFence m_sync;
};
} // namespace QtWebEngineCore
#endif // !COMPOSITOR_RESOURCE_FENCE_H
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