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/*
* 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. 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) && PLATFORM(COCOA) && ENABLE(VIDEO)
#include "Connection.h"
#include "GPUProcessConnection.h"
#include "MessageReceiver.h"
#include "RemoteVideoFrameIdentifier.h"
#include "SharedVideoFrame.h"
#include <wtf/Function.h>
#include <wtf/HashMap.h>
#include <wtf/Lock.h>
#include <wtf/WorkQueue.h>
#include <wtf/threads/BinarySemaphore.h>
using CVPixelBufferPoolRef = struct __CVPixelBufferPool*;
namespace IPC {
class Connection;
class Decoder;
}
namespace WebCore {
class NativeImage;
class VideoFrame;
}
namespace WebKit {
class RemoteVideoFrameProxy;
class RemoteVideoFrameObjectHeapProxyProcessor : public IPC::Connection::WorkQueueMessageReceiver, public GPUProcessConnection::Client {
public:
static Ref<RemoteVideoFrameObjectHeapProxyProcessor> create(GPUProcessConnection&);
~RemoteVideoFrameObjectHeapProxyProcessor();
using Callback = Function<void(RetainPtr<CVPixelBufferRef>&&)>;
void getVideoFrameBuffer(const RemoteVideoFrameProxy&, bool canUseIOSurfce, Callback&&);
RefPtr<WebCore::NativeImage> getNativeImage(const WebCore::VideoFrame&);
private:
explicit RemoteVideoFrameObjectHeapProxyProcessor(GPUProcessConnection&);
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
// Messages
void setSharedVideoFrameSemaphore(IPC::Semaphore&&);
void setSharedVideoFrameMemory(const SharedMemory::Handle&);
void newVideoFrameBuffer(RemoteVideoFrameIdentifier, std::optional<SharedVideoFrame::Buffer>&&);
void newConvertedVideoFrameBuffer(std::optional<SharedVideoFrame::Buffer>&&);
// GPUProcessConnection::Client
void gpuProcessConnectionDidClose(GPUProcessConnection&);
void clearCallbacks();
Callback takeCallback(RemoteVideoFrameIdentifier);
private:
Lock m_connectionLock;
IPC::Connection::UniqueID m_connectionID WTF_GUARDED_BY_LOCK(m_connectionLock);
Lock m_callbacksLock;
HashMap<RemoteVideoFrameIdentifier, Callback> m_callbacks WTF_GUARDED_BY_LOCK(m_callbacksLock);
Ref<WorkQueue> m_queue;
SharedVideoFrameReader m_sharedVideoFrameReader;
SharedVideoFrameWriter m_sharedVideoFrameWriter;
RetainPtr<CVPixelBufferRef> m_convertedBuffer;
BinarySemaphore m_conversionSemaphore;
};
} // namespace WebKit
#endif
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