94 lines
3.6 KiB
C++
94 lines
3.6 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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* 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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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* 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
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(WEB_RTC)
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#include "ActiveDOMObject.h"
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#include "EventTarget.h"
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#include "RTCRtpScriptTransformer.h"
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#include <JavaScriptCore/JSCJSValue.h>
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#include <JavaScriptCore/JSObject.h>
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#include <JavaScriptCore/Strong.h>
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#include <wtf/Lock.h>
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#include <wtf/ThreadSafeRefCounted.h>
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namespace WebCore {
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class RTCRtpScriptTransformer;
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class RTCRtpTransformBackend;
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class Worker;
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class RTCRtpScriptTransform final
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: public ThreadSafeRefCounted<RTCRtpScriptTransform, WTF::DestructionThread::Main>
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, public ActiveDOMObject
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, public EventTargetWithInlineData {
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WTF_MAKE_ISO_ALLOCATED(RTCRtpScriptTransform);
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public:
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static ExceptionOr<Ref<RTCRtpScriptTransform>> create(JSC::JSGlobalObject&, Worker&, JSC::JSValue, Vector<JSC::Strong<JSC::JSObject>>&&);
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~RTCRtpScriptTransform();
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void setTransformer(RTCRtpScriptTransformer&);
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bool isAttached() const { return m_isAttached; }
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void initializeBackendForReceiver(RTCRtpTransformBackend&);
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void initializeBackendForSender(RTCRtpTransformBackend&);
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void willClearBackend(RTCRtpTransformBackend&);
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void backendTransferedToNewTransform() { clear(RTCRtpScriptTransformer::ClearCallback::No); }
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using ThreadSafeRefCounted::ref;
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using ThreadSafeRefCounted::deref;
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private:
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RTCRtpScriptTransform(ScriptExecutionContext&, Ref<Worker>&&);
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void initializeTransformer(RTCRtpTransformBackend&);
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bool setupTransformer(Ref<RTCRtpTransformBackend>&&);
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void clear(RTCRtpScriptTransformer::ClearCallback);
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// ActiveDOMObject
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const char* activeDOMObjectName() const final { return "RTCRtpScriptTransform"; }
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// EventTarget
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EventTargetInterface eventTargetInterface() const final { return RTCRtpScriptTransformEventTargetInterfaceType; }
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ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); }
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void refEventTarget() final { ref(); }
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void derefEventTarget() final { deref(); }
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Ref<Worker> m_worker;
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bool m_isAttached { false };
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RefPtr<RTCRtpTransformBackend> m_backend;
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Lock m_transformerLock;
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bool m_isTransformerInitialized WTF_GUARDED_BY_LOCK(m_transformerLock) { false };
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WeakPtr<RTCRtpScriptTransformer> m_transformer WTF_GUARDED_BY_LOCK(m_transformerLock);
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};
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} // namespace WebCore
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#endif // ENABLE(WEB_RTC)
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