/* * 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/WeakHashSet.h> namespace WebKit { class GPUProcess; class RemoteAudioSessionProxy; class RemoteAudioSessionProxyManager : public WebCore::AudioSession::InterruptionObserver { WTF_MAKE_FAST_ALLOCATED; public: RemoteAudioSessionProxyManager(); ~RemoteAudioSessionProxyManager(); void addProxy(RemoteAudioSessionProxy&); void removeProxy(RemoteAudioSessionProxy&); void setCategoryForProcess(RemoteAudioSessionProxy&, WebCore::AudioSession::CategoryType, WebCore::RouteSharingPolicy); void setPreferredBufferSizeForProcess(RemoteAudioSessionProxy&, size_t); bool tryToSetActiveForProcess(RemoteAudioSessionProxy&, bool); const WebCore::AudioSession& session() const { return m_session; } private: void beginAudioSessionInterruption() final; void endAudioSessionInterruption(WebCore::AudioSession::MayResume) final; UniqueRef<WebCore::AudioSession> m_session; WeakHashSet<RemoteAudioSessionProxy> m_proxies; }; } #endif