fake-android-guest/androidImpl/Vsync.h

// Copyright 2018 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once

#include <functional>
#include <memory>

namespace aemu {

class Vsync {
public:
    using Callback = std::function<void()>;

    Vsync(int refreshRate, Callback vsyncCallback);
    ~Vsync();

    void start();
    void join();

    void waitUntilNextVsync();

private:
    class Impl;
    std::unique_ptr<Impl> mImpl;
};

} // namespace aemu