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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 <condition_variable>
#include <mutex>
#include <ui/GraphicBuffer.h>
namespace android {
class SurfaceManager;
class EglManager;
class Program;
class BufferGenerator {
public:
BufferGenerator();
~BufferGenerator();
/* Get a new fence */
status_t get(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence);
/* Static callback that sets the fence on a particular instance */
static void setBuffer(const sp<GraphicBuffer>& buffer, int32_t fence, void* fenceGenerator);
private:
bool mInitialized = false;
std::unique_ptr<SurfaceManager> mSurfaceManager;
std::unique_ptr<EglManager> mEglManager;
std::unique_ptr<Program> mProgram;
std::condition_variable_any mConditionVariable;
sp<GraphicBuffer> mGraphicBuffer;
int32_t mFence = -1;
bool mPending = false;
using Epoch = std::chrono::time_point<std::chrono::steady_clock>;
Epoch mEpoch = std::chrono::steady_clock::now();
};
} // namespace android
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