flutter_flutter/shell/common/vsync_waiter.h
2017-09-11 15:58:48 -07:00

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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_SHELL_COMMON_VSYNC_WAITER_H_
#define FLUTTER_SHELL_COMMON_VSYNC_WAITER_H_
#include <functional>
#include "lib/fxl/time/time_point.h"
namespace shell {
class VsyncWaiter {
public:
using Callback = std::function<void(fxl::TimePoint frame_start_time,
fxl::TimePoint frame_target_time)>;
virtual void AsyncWaitForVsync(Callback callback) = 0;
virtual ~VsyncWaiter();
};
} // namespace shell
#endif // FLUTTER_SHELL_COMMON_VSYNC_WAITER_H_