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// 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 "AndroidBufferQueue.h"
#include "GrallocDispatch.h"
#include "Vsync.h"
#include <system/window.h>
#include "base/synchronization/Lock.h"
#include <functional>
#include <memory>
#include <vector>
namespace aemu {
class AndroidWindow;
// An abstract class for the composer implementation.
class Composer {
public:
Composer() = default;
virtual ~Composer() = default;
virtual void advanceFrame() = 0;
};
class SurfaceFlinger {
public:
using ComposerConstructFunc = std::function<Composer*(AndroidWindow*,
AndroidBufferQueue*,
AndroidBufferQueue*)>;
SurfaceFlinger(
int refreshRate,
AndroidWindow* composeWindow,
std::vector<ANativeWindowBuffer*> appBuffers,
ComposerConstructFunc&& composerFunc,
Vsync::Callback vsyncFunc);
~SurfaceFlinger();
void start();
void join();
void connectWindow(AndroidWindow* window);
void advanceFrame();
private:
void disconnectWindow();
android::base::Lock mLock;
AndroidBufferQueue mApp2Sf;
AndroidBufferQueue mSf2App;
AndroidWindow* mComposeWindow = nullptr;
std::unique_ptr<Composer> mComposerImpl;
Vsync mVsync;
AndroidWindow* mCurrentWindow = nullptr;
};
} // namespace aemu
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