94 lines
3.4 KiB
C++
94 lines
3.4 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if ENABLE(WEB_AUDIO)
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#include "AudioWorklet.h"
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#include "AudioWorkletGlobalScope.h"
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#include "AudioWorkletMessagingProxy.h"
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#include "AudioWorkletNode.h"
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#include "AudioWorkletProcessor.h"
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#include "BaseAudioContext.h"
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#include "WorkerRunLoop.h"
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#include <wtf/IsoMallocInlines.h>
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namespace WebCore {
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WTF_MAKE_ISO_ALLOCATED_IMPL(AudioWorklet);
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Ref<AudioWorklet> AudioWorklet::create(BaseAudioContext& audioContext)
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{
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auto worklet = adoptRef(*new AudioWorklet(audioContext));
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worklet->suspendIfNeeded();
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return worklet;
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}
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AudioWorklet::AudioWorklet(BaseAudioContext& audioContext)
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: Worklet(*audioContext.document())
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, m_audioContext(makeWeakPtr(audioContext))
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{
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}
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Vector<Ref<WorkletGlobalScopeProxy>> AudioWorklet::createGlobalScopes()
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{
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// WebAudio uses a single global scope.
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return { AudioWorkletMessagingProxy::create(*this) };
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}
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AudioWorkletMessagingProxy* AudioWorklet::proxy() const
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{
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auto& proxies = this->proxies();
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if (proxies.isEmpty())
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return nullptr;
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return downcast<AudioWorkletMessagingProxy>(proxies.first().ptr());
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}
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BaseAudioContext* AudioWorklet::audioContext() const
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{
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return m_audioContext.get();
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}
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void AudioWorklet::createProcessor(const String& name, TransferredMessagePort port, Ref<SerializedScriptValue>&& options, AudioWorkletNode& node)
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{
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auto* proxy = this->proxy();
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ASSERT(proxy);
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if (!proxy)
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return;
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proxy->postTaskForModeToWorkletGlobalScope([name = name.isolatedCopy(), port, options = WTFMove(options), node = makeRef(node)](ScriptExecutionContext& context) mutable {
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node->setProcessor(downcast<AudioWorkletGlobalScope>(context).createProcessor(name, port, WTFMove(options)));
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callOnMainThread([node = WTFMove(node)] { });
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}, WorkerRunLoop::defaultMode());
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}
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} // namespace WebCore
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#endif // ENABLE(WEB_AUDIO)
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