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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 "GPUProcessConnection.h"
#include "RemoteVideoFrameIdentifier.h"
#include <WebCore/VideoFrame.h>
#include <wtf/ArgumentCoder.h>
namespace IPC {
class Connection;
class Decoder;
}
namespace WebCore {
#if PLATFORM(COCOA)
class VideoFrameCV;
#endif
}
namespace WebKit {
class GPUProcessConnection;
class RemoteVideoFrameObjectHeapProxy;
// A WebCore::VideoFrame class that points to a concrete WebCore::VideoFrame instance
// in another process, GPU process.
class RemoteVideoFrameProxy final : public WebCore::VideoFrame {
WTF_MAKE_FAST_ALLOCATED;
WTF_MAKE_NONCOPYABLE(RemoteVideoFrameProxy);
public:
struct Properties {
// The receiver owns the reference, so it must be released via either adoption to
// `RemoteVideoFrameProxy::create()` or via `RemoteVideoFrameProxy::releaseUnused()`.
WebKit::RemoteVideoFrameReference reference;
MediaTime presentationTime;
bool isMirrored { false };
Rotation rotation { Rotation::None };
WebCore::IntSize size;
uint32_t pixelFormat { 0 };
WebCore::PlatformVideoColorSpace colorSpace;
template<typename Encoder> void encode(Encoder&) const;
template<typename Decoder> static std::optional<Properties> decode(Decoder&);
};
static Properties properties(WebKit::RemoteVideoFrameReference, const WebCore::VideoFrame&);
static Ref<RemoteVideoFrameProxy> create(IPC::Connection&, RemoteVideoFrameObjectHeapProxy&, Properties&&);
// Called by the end-points that capture creation messages that are sent from GPUP but
// whose destinations were released in WP before message was processed.
static void releaseUnused(IPC::Connection&, Properties&&);
~RemoteVideoFrameProxy() final;
RemoteVideoFrameIdentifier identifier() const;
RemoteVideoFrameReadReference newReadReference() const;
WebCore::IntSize size() const { return m_size; }
// WebCore::VideoFrame overrides.
WebCore::FloatSize presentationSize() const final { return m_size; }
uint32_t pixelFormat() const final;
bool isRemoteProxy() const final { return true; }
#if PLATFORM(COCOA)
CVPixelBufferRef pixelBuffer() const final;
VideoFrame::ResourceIdentifier resourceIdentifier() const final;
#endif
private:
RemoteVideoFrameProxy(IPC::Connection&, RemoteVideoFrameObjectHeapProxy&, Properties&&);
static inline Seconds defaultTimeout = 10_s;
const Ref<IPC::Connection> m_connection;
RemoteVideoFrameReferenceTracker m_referenceTracker;
const WebCore::IntSize m_size;
uint32_t m_pixelFormat { 0 };
// FIXME: Remove this.
mutable RefPtr<RemoteVideoFrameObjectHeapProxy> m_videoFrameObjectHeapProxy;
#if PLATFORM(COCOA)
mutable Lock m_pixelBufferLock;
mutable RetainPtr<CVPixelBufferRef> m_pixelBuffer;
#endif
};
template<typename Encoder> void RemoteVideoFrameProxy::Properties::encode(Encoder& encoder) const
{
encoder << reference << presentationTime << isMirrored << rotation << size << pixelFormat << colorSpace;
}
template<typename Decoder> std::optional<RemoteVideoFrameProxy::Properties> RemoteVideoFrameProxy::Properties::decode(Decoder& decoder)
{
auto reference = decoder.template decode<RemoteVideoFrameReference>();
auto presentationTime = decoder.template decode<MediaTime>();
auto isMirrored = decoder.template decode<bool>();
auto rotation = decoder.template decode<Rotation>();
auto size = decoder.template decode<WebCore::IntSize>();
auto pixelFormat = decoder.template decode<uint32_t>();
auto colorSpace = decoder.template decode<WebCore::PlatformVideoColorSpace>();
if (!decoder.isValid())
return std::nullopt;
return Properties { WTFMove(*reference), WTFMove(*presentationTime), *isMirrored, *rotation, *size, *pixelFormat, *colorSpace };
}
TextStream& operator<<(TextStream&, const RemoteVideoFrameProxy::Properties&);
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebKit::RemoteVideoFrameProxy)
static bool isType(const WebCore::VideoFrame& videoFrame) { return videoFrame.isRemoteProxy(); }
SPECIALIZE_TYPE_TRAITS_END()
#endif
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