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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 <mutex>
#include "EventThread.h"
namespace android {
/**
* VSync signals used during SurfaceFlinger trace playback (traces we captured
* with SurfaceInterceptor).
*/
class InjectVSyncSource final : public VSyncSource {
public:
~InjectVSyncSource() override = default;
void setCallback(VSyncSource::Callback* callback) override {
std::lock_guard<std::mutex> lock(mCallbackMutex);
mCallback = callback;
}
void onInjectSyncEvent(nsecs_t when, nsecs_t expectedVSyncTimestamp) {
std::lock_guard<std::mutex> lock(mCallbackMutex);
if (mCallback) {
mCallback->onVSyncEvent(when, expectedVSyncTimestamp);
}
}
const char* getName() const override { return "inject"; }
void setVSyncEnabled(bool) override {}
void setPhaseOffset(nsecs_t) override {}
void dump(std::string&) const override {}
private:
std::mutex mCallbackMutex;
VSyncSource::Callback* mCallback GUARDED_BY(mCallbackMutex) = nullptr;
};
} // namespace android
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