| /* |
| * 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. |
| * 3. Neither the name of Apple Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE 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 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. |
| */ |
| |
| #include "config.h" |
| |
| #if ENABLE(WEB_AUDIO) |
| #include "AudioWorklet.h" |
| |
| #include "AudioWorkletGlobalScope.h" |
| #include "AudioWorkletMessagingProxy.h" |
| #include "AudioWorkletNode.h" |
| #include "AudioWorkletProcessor.h" |
| #include "BaseAudioContext.h" |
| #include "WorkerRunLoop.h" |
| #include <wtf/IsoMallocInlines.h> |
| |
| namespace WebCore { |
| |
| WTF_MAKE_ISO_ALLOCATED_IMPL(AudioWorklet); |
| |
| Ref<AudioWorklet> AudioWorklet::create(BaseAudioContext& audioContext) |
| { |
| auto worklet = adoptRef(*new AudioWorklet(audioContext)); |
| worklet->suspendIfNeeded(); |
| return worklet; |
| } |
| |
| AudioWorklet::AudioWorklet(BaseAudioContext& audioContext) |
| : Worklet(*audioContext.document()) |
| , m_audioContext(audioContext) |
| { |
| } |
| |
| Vector<Ref<WorkletGlobalScopeProxy>> AudioWorklet::createGlobalScopes() |
| { |
| // WebAudio uses a single global scope. |
| return { AudioWorkletMessagingProxy::create(*this) }; |
| } |
| |
| AudioWorkletMessagingProxy* AudioWorklet::proxy() const |
| { |
| auto& proxies = this->proxies(); |
| if (proxies.isEmpty()) |
| return nullptr; |
| return downcast<AudioWorkletMessagingProxy>(proxies.first().ptr()); |
| } |
| |
| BaseAudioContext* AudioWorklet::audioContext() const |
| { |
| return m_audioContext.get(); |
| } |
| |
| void AudioWorklet::createProcessor(const String& name, TransferredMessagePort port, Ref<SerializedScriptValue>&& options, AudioWorkletNode& node) |
| { |
| auto* proxy = this->proxy(); |
| ASSERT(proxy); |
| if (!proxy) |
| return; |
| |
| proxy->postTaskForModeToWorkletGlobalScope([name = name.isolatedCopy(), port, options = WTFMove(options), node = Ref { node }](ScriptExecutionContext& context) mutable { |
| node->setProcessor(downcast<AudioWorkletGlobalScope>(context).createProcessor(name, port, WTFMove(options))); |
| callOnMainThread([node = WTFMove(node)] { }); |
| }, WorkerRunLoop::defaultMode()); |
| } |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_AUDIO) |