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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) && USE(AUDIO_SESSION)
#include <WebCore/AudioSession.h>
#include <WebCore/ProcessIdentifier.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakHashSet.h>
#include <wtf/WeakRef.h>
namespace WebKit {
class GPUProcess;
class RemoteAudioSessionProxy;
class RemoteAudioSessionProxyManager
: public RefCounted<RemoteAudioSessionProxyManager>
, public WebCore::AudioSessionInterruptionObserver
, private WebCore::AudioSessionConfigurationChangeObserver {
WTF_MAKE_TZONE_ALLOCATED(RemoteAudioSessionProxyManager);
public:
static Ref<RemoteAudioSessionProxyManager> create(GPUProcess& gpuProcess)
{
return adoptRef(*new RemoteAudioSessionProxyManager(gpuProcess));
}
~RemoteAudioSessionProxyManager();
void addProxy(RemoteAudioSessionProxy&, std::optional<audit_token_t>);
void removeProxy(RemoteAudioSessionProxy&);
void updateCategory();
void updatePreferredBufferSizeForProcess();
void updateSpatialExperience();
bool tryToSetActiveForProcess(RemoteAudioSessionProxy&, bool);
void beginInterruptionRemote();
void endInterruptionRemote(WebCore::AudioSession::MayResume);
WebCore::AudioSession& session() { return WebCore::AudioSession::sharedSession(); }
const WebCore::AudioSession& session() const { return WebCore::AudioSession::sharedSession(); }
Ref<WebCore::AudioSession> protectedSession() { return WebCore::AudioSession::sharedSession(); }
Ref<const WebCore::AudioSession> protectedSession() const { return WebCore::AudioSession::sharedSession(); }
void updatePresentingProcesses();
USING_CAN_MAKE_WEAKPTR(WebCore::AudioSessionInterruptionObserver);
private:
RemoteAudioSessionProxyManager(GPUProcess&);
void beginAudioSessionInterruption() final;
void endAudioSessionInterruption(WebCore::AudioSession::MayResume) final;
void hardwareMutedStateDidChange(const WebCore::AudioSession&) final;
void bufferSizeDidChange(const WebCore::AudioSession&) final;
void sampleRateDidChange(const WebCore::AudioSession&) final;
void configurationDidChange(const WebCore::AudioSession&);
bool hasOtherActiveProxyThan(RemoteAudioSessionProxy& proxyToExclude);
bool hasActiveNotInterruptedProxy();
WeakRef<GPUProcess> m_gpuProcess;
WeakHashSet<RemoteAudioSessionProxy> m_proxies;
};
}
#endif
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