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/*
* Copyright (C) 2022 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) && ENABLE(VIDEO)
#include "Connection.h"
#include "RemoteVideoFrameProxy.h"
#include "ThreadSafeObjectHeap.h"
#include "WorkQueueMessageReceiver.h"
#if PLATFORM(COCOA)
#include "SharedVideoFrame.h"
#endif
namespace WebCore {
class DestinationColorSpace;
class PixelBufferConformerCV;
class VideoFrame;
}
namespace WebKit {
// Holds references to all VideoFrame instances that are mapped from GPU process to Web process.
class RemoteVideoFrameObjectHeap final : public IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any> {
public:
static Ref<RemoteVideoFrameObjectHeap> create(Ref<IPC::Connection>&&);
~RemoteVideoFrameObjectHeap();
void ref() const final { IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any>::ref(); }
void deref() const final { IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any>::deref(); }
void close();
RemoteVideoFrameProxy::Properties add(Ref<WebCore::VideoFrame>&&);
RefPtr<WebCore::VideoFrame> get(RemoteVideoFrameReadReference&&);
void stopListeningForIPC(Ref<RemoteVideoFrameObjectHeap>&&) { close(); }
void lowMemoryHandler();
private:
explicit RemoteVideoFrameObjectHeap(Ref<IPC::Connection>&&);
Ref<IPC::Connection> protectedConnection() const { return m_connection; }
// IPC::MessageReceiver overrides.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
bool didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, UniqueRef<IPC::Encoder>&) final;
// Messages.
void releaseVideoFrame(RemoteVideoFrameWriteReference&&);
#if PLATFORM(COCOA)
void getVideoFrameBuffer(RemoteVideoFrameReadReference&&, bool canSendIOSurface);
void pixelBuffer(RemoteVideoFrameReadReference&&, CompletionHandler<void(RetainPtr<CVPixelBufferRef>)>&&);
void convertFrameBuffer(SharedVideoFrame&&, CompletionHandler<void(WebCore::DestinationColorSpace)>&&);
void setSharedVideoFrameSemaphore(IPC::Semaphore&&);
void setSharedVideoFrameMemory(WebCore::SharedMemory::Handle&&);
UniqueRef<WebCore::PixelBufferConformerCV> createPixelConformer();
#endif
const Ref<IPC::Connection> m_connection;
IPC::ThreadSafeObjectHeap<RemoteVideoFrameIdentifier, RefPtr<WebCore::VideoFrame>> m_heap;
#if PLATFORM(COCOA)
SharedVideoFrameWriter m_sharedVideoFrameWriter;
SharedVideoFrameReader m_sharedVideoFrameReader;
Lock m_pixelBufferConformerLock;
std::unique_ptr<WebCore::PixelBufferConformerCV> m_pixelBufferConformer WTF_GUARDED_BY_LOCK(m_pixelBufferConformerLock);
#endif
bool m_isClosed { false };
};
}
#endif
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