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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. ``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 PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM)
#include "LayerHostingContext.h"
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "RemoteSampleBufferDisplayLayerManager.h"
#include "RemoteVideoFrameIdentifier.h"
#include "SampleBufferDisplayLayerIdentifier.h"
#include "SharedVideoFrame.h"
#include <WebCore/SampleBufferDisplayLayer.h>
#include <wtf/MediaTime.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/ThreadAssertions.h>
#include <wtf/WeakRef.h>
namespace WebCore {
class ImageTransferSessionVT;
class LocalSampleBufferDisplayLayer;
enum class VideoFrameRotation : uint16_t;
};
namespace WebKit {
class GPUConnectionToWebProcess;
struct SharedPreferencesForWebProcess;
class RemoteSampleBufferDisplayLayer : public RefCounted<RemoteSampleBufferDisplayLayer>, public WebCore::SampleBufferDisplayLayerClient, public IPC::MessageReceiver, private IPC::MessageSender {
WTF_MAKE_TZONE_ALLOCATED(RemoteSampleBufferDisplayLayer);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
static RefPtr<RemoteSampleBufferDisplayLayer> create(GPUConnectionToWebProcess&, SampleBufferDisplayLayerIdentifier, Ref<IPC::Connection>&&, RemoteSampleBufferDisplayLayerManager&);
~RemoteSampleBufferDisplayLayer();
USING_CAN_MAKE_WEAKPTR(WebCore::SampleBufferDisplayLayerClient);
using LayerInitializationCallback = CompletionHandler<void(std::optional<LayerHostingContextID>)>;
void initialize(bool hideRootLayer, WebCore::IntSize, bool shouldMaintainAspectRatio, bool canShowWhileLocked, LayerInitializationCallback&&);
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
CGRect bounds() const;
void updateBoundsAndPosition(CGRect, std::optional<WTF::MachSendRight>&&);
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const;
private:
RemoteSampleBufferDisplayLayer(GPUConnectionToWebProcess&, SampleBufferDisplayLayerIdentifier, Ref<IPC::Connection>&&, RemoteSampleBufferDisplayLayerManager&);
RefPtr<WebCore::LocalSampleBufferDisplayLayer> protectedSampleBufferDisplayLayer() const;
#if !RELEASE_LOG_DISABLED
void setLogIdentifier(uint64_t);
#endif
void updateDisplayMode(bool hideDisplayLayer, bool hideRootLayer);
void flush();
void flushAndRemoveImage();
void play();
void pause();
void enqueueVideoFrame(SharedVideoFrame&&);
void clearVideoFrames();
void setSharedVideoFrameSemaphore(IPC::Semaphore&&);
void setSharedVideoFrameMemory(WebCore::SharedMemory::Handle&&);
void setShouldMaintainAspectRatio(bool shouldMaintainAspectRatio);
// IPC::MessageSender
IPC::Connection* messageSenderConnection() const final;
uint64_t messageSenderDestinationID() const final { return m_identifier.toUInt64(); }
// WebCore::SampleBufferDisplayLayerClient
void sampleBufferDisplayLayerStatusDidFail() final;
#if PLATFORM(IOS_FAMILY)
bool canShowWhileLocked() const final { return false; }
#endif
ThreadSafeWeakPtr<GPUConnectionToWebProcess> m_gpuConnection WTF_GUARDED_BY_CAPABILITY(m_consumeThread);
SampleBufferDisplayLayerIdentifier m_identifier;
Ref<IPC::Connection> m_connection;
RefPtr<WebCore::LocalSampleBufferDisplayLayer> m_sampleBufferDisplayLayer;
std::unique_ptr<LayerHostingContext> m_layerHostingContext;
SharedVideoFrameReader m_sharedVideoFrameReader;
ThreadLikeAssertion m_consumeThread NO_UNIQUE_ADDRESS;
ThreadSafeWeakPtr<RemoteSampleBufferDisplayLayerManager> m_remoteSampleBufferDisplayLayerManager;
};
}
#endif // PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM)
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