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Diffstat (limited to 'src/core/compositor/compositor_resource_fence.h')
-rw-r--r-- | src/core/compositor/compositor_resource_fence.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/core/compositor/compositor_resource_fence.h b/src/core/compositor/compositor_resource_fence.h new file mode 100644 index 000000000..1c2ea3695 --- /dev/null +++ b/src/core/compositor/compositor_resource_fence.h @@ -0,0 +1,71 @@ +/**************************************************************************** +** +** 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(); + +private: + gl::TransferableFence m_sync; +}; + +} // namespace QtWebEngineCore + +#endif // !COMPOSITOR_RESOURCE_FENCE_H |