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/*
* Copyright (C) 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.
*/
#ifndef ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLCLIENT_H
#define ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLCLIENT_H
#include <memory>
#include <android/hardware/media/bufferpool/2.0/IAccessor.h>
#include <android/hardware/media/bufferpool/2.0/IConnection.h>
#include <android/hardware/media/bufferpool/2.0/IObserver.h>
#include <bufferpool/BufferPoolTypes.h>
#include <cutils/native_handle.h>
#include "Accessor.h"
namespace android {
namespace hardware {
namespace media {
namespace bufferpool {
namespace V2_0 {
namespace implementation {
using ::android::hardware::media::bufferpool::V2_0::IAccessor;
using ::android::hardware::media::bufferpool::V2_0::IConnection;
using ::android::hardware::media::bufferpool::V2_0::IObserver;
using ::android::hardware::media::bufferpool::V2_0::ResultStatus;
using ::android::sp;
/**
* A buffer pool client for a buffer pool. For a specific buffer pool, at most
* one buffer pool client exists per process. This class will not be exposed
* outside. A buffer pool client will be used via ClientManager.
*/
class BufferPoolClient {
public:
/**
* Creates a buffer pool client from a local buffer pool
* (via ClientManager#create).
*/
explicit BufferPoolClient(const sp<Accessor> &accessor,
const sp<IObserver> &observer);
/**
* Creates a buffer pool client from a remote buffer pool
* (via ClientManager#registerSender).
* Note: A buffer pool client created with remote buffer pool cannot
* allocate a buffer.
*/
explicit BufferPoolClient(const sp<IAccessor> &accessor,
const sp<IObserver> &observer);
/** Destructs a buffer pool client. */
~BufferPoolClient();
private:
bool isValid();
bool isLocal();
bool isActive(int64_t *lastTransactionUs, bool clearCache);
ConnectionId getConnectionId();
ResultStatus getAccessor(sp<IAccessor> *accessor);
void receiveInvalidation(uint32_t msgId);
ResultStatus flush();
ResultStatus allocate(const std::vector<uint8_t> &params,
native_handle_t **handle,
std::shared_ptr<BufferPoolData> *buffer);
ResultStatus receive(TransactionId transactionId,
BufferId bufferId,
int64_t timestampUs,
native_handle_t **handle,
std::shared_ptr<BufferPoolData> *buffer);
ResultStatus postSend(ConnectionId receiver,
const std::shared_ptr<BufferPoolData> &buffer,
TransactionId *transactionId,
int64_t *timestampUs);
class Impl;
std::shared_ptr<Impl> mImpl;
friend struct ClientManager;
friend struct Observer;
};
} // namespace implementation
} // namespace V2_0
} // namespace bufferpool
} // namespace media
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_MEDIA_BUFFERPOOL_V2_0_BUFFERPOOLCLIENT_H