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/*
* Copyright (C) 2020 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(GPU_PROCESS) && ENABLE(WEB_AUDIO)
#include "Connection.h"
#include "IPCSemaphore.h"
#include "RemoteAudioDestinationIdentifier.h"
#include <WebCore/SharedMemory.h>
#include <memory>
#include <wtf/CompletionHandler.h>
#include <wtf/HashMap.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/ThreadSafeWeakPtr.h>
#include <wtf/WeakRef.h>
#if PLATFORM(COCOA)
#include "SharedCARingBuffer.h"
#endif
namespace WebCore {
#if PLATFORM(COCOA)
class CAAudioStreamDescription;
#endif
class SharedMemoryHandle;
}
namespace WebKit {
class GPUConnectionToWebProcess;
class RemoteAudioDestination;
struct SharedPreferencesForWebProcess;
class RemoteAudioDestinationManager : private IPC::MessageReceiver {
WTF_MAKE_TZONE_ALLOCATED(RemoteAudioDestinationManager);
WTF_MAKE_NONCOPYABLE(RemoteAudioDestinationManager);
public:
RemoteAudioDestinationManager(GPUConnectionToWebProcess&);
~RemoteAudioDestinationManager();
void ref() const final;
void deref() const final;
void didReceiveMessageFromWebProcess(IPC::Connection& connection, IPC::Decoder& decoder) { didReceiveMessage(connection, decoder); }
bool allowsExitUnderMemoryPressure() const;
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const;
private:
void didReceiveMessage(IPC::Connection&, IPC::Decoder&);
void createAudioDestination(RemoteAudioDestinationIdentifier, const String& inputDeviceId, uint32_t numberOfInputChannels, uint32_t numberOfOutputChannels, float sampleRate, float hardwareSampleRate, IPC::Semaphore&& renderSemaphore, WebCore::SharedMemoryHandle&&, CompletionHandler<void(size_t)>&&);
void deleteAudioDestination(RemoteAudioDestinationIdentifier);
void startAudioDestination(RemoteAudioDestinationIdentifier, CompletionHandler<void(bool, size_t)>&&);
void stopAudioDestination(RemoteAudioDestinationIdentifier, CompletionHandler<void(bool)>&&);
#if PLATFORM(COCOA)
void audioSamplesStorageChanged(RemoteAudioDestinationIdentifier, ConsumerSharedCARingBuffer::Handle&&);
#endif
HashMap<RemoteAudioDestinationIdentifier, UniqueRef<RemoteAudioDestination>> m_audioDestinations;
ThreadSafeWeakPtr<GPUConnectionToWebProcess> m_gpuConnectionToWebProcess;
};
} // namespace WebKit;
#endif // ENABLE(GPU_PROCESS) && ENABLE(WEB_AUDIO)
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