| /* |
| * 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. ``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 |
| * 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(WEB_RTC) |
| |
| #include "ActiveDOMObject.h" |
| #include "EventTarget.h" |
| #include "RTCRtpScriptTransformer.h" |
| #include <JavaScriptCore/JSCJSValue.h> |
| #include <JavaScriptCore/JSObject.h> |
| #include <JavaScriptCore/Strong.h> |
| #include <wtf/Lock.h> |
| #include <wtf/ThreadSafeRefCounted.h> |
| |
| namespace WebCore { |
| |
| class RTCRtpScriptTransformer; |
| class RTCRtpTransformBackend; |
| class Worker; |
| |
| class RTCRtpScriptTransform final |
| : public ThreadSafeRefCounted<RTCRtpScriptTransform, WTF::DestructionThread::Main> |
| , public ActiveDOMObject |
| , public EventTargetWithInlineData { |
| WTF_MAKE_ISO_ALLOCATED(RTCRtpScriptTransform); |
| public: |
| static ExceptionOr<Ref<RTCRtpScriptTransform>> create(JSC::JSGlobalObject&, Worker&, JSC::JSValue, Vector<JSC::Strong<JSC::JSObject>>&&); |
| ~RTCRtpScriptTransform(); |
| |
| void setTransformer(RTCRtpScriptTransformer&); |
| |
| bool isAttached() const { return m_isAttached; } |
| void initializeBackendForReceiver(RTCRtpTransformBackend&); |
| void initializeBackendForSender(RTCRtpTransformBackend&); |
| void willClearBackend(RTCRtpTransformBackend&); |
| void backendTransferedToNewTransform() { clear(RTCRtpScriptTransformer::ClearCallback::No); } |
| |
| using ThreadSafeRefCounted::ref; |
| using ThreadSafeRefCounted::deref; |
| |
| private: |
| RTCRtpScriptTransform(ScriptExecutionContext&, Ref<Worker>&&); |
| |
| void initializeTransformer(RTCRtpTransformBackend&); |
| bool setupTransformer(Ref<RTCRtpTransformBackend>&&); |
| void clear(RTCRtpScriptTransformer::ClearCallback); |
| |
| // ActiveDOMObject |
| const char* activeDOMObjectName() const final { return "RTCRtpScriptTransform"; } |
| |
| // EventTarget |
| EventTargetInterface eventTargetInterface() const final { return RTCRtpScriptTransformEventTargetInterfaceType; } |
| ScriptExecutionContext* scriptExecutionContext() const final { return ActiveDOMObject::scriptExecutionContext(); } |
| void refEventTarget() final { ref(); } |
| void derefEventTarget() final { deref(); } |
| |
| Ref<Worker> m_worker; |
| |
| bool m_isAttached { false }; |
| RefPtr<RTCRtpTransformBackend> m_backend; |
| |
| Lock m_transformerLock; |
| bool m_isTransformerInitialized WTF_GUARDED_BY_LOCK(m_transformerLock) { false }; |
| WeakPtr<RTCRtpScriptTransformer> m_transformer WTF_GUARDED_BY_LOCK(m_transformerLock); |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(WEB_RTC) |