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/*
* Copyright (C) 2020-2025 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 PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM)
#include "Connection.h"
#include "LayerHostingContext.h"
#include "SampleBufferDisplayLayerIdentifier.h"
#include "SharedPreferencesForWebProcess.h"
#include "WorkQueueMessageReceiver.h"
#include <WebCore/FloatRect.h>
#include <WebCore/IntSize.h>
#include <wtf/HashMap.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakRef.h>
#include <wtf/WorkQueue.h>
namespace IPC {
class Decoder;
}
namespace WebCore {
class IntSize;
}
namespace WebKit {
class GPUConnectionToWebProcess;
class RemoteSampleBufferDisplayLayer;
class RemoteSampleBufferDisplayLayerManager final : public IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any> {
WTF_MAKE_TZONE_ALLOCATED(RemoteSampleBufferDisplayLayerManager);
public:
static Ref<RemoteSampleBufferDisplayLayerManager> create(GPUConnectionToWebProcess& connection, SharedPreferencesForWebProcess& sharedPreferencesForWebProcess)
{
auto instance = adoptRef(*new RemoteSampleBufferDisplayLayerManager(connection, sharedPreferencesForWebProcess));
instance->startListeningForIPC();
return instance;
}
~RemoteSampleBufferDisplayLayerManager();
void ref() const final { IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any>::ref(); }
void deref() const final { IPC::WorkQueueMessageReceiver<WTF::DestructionThread::Any>::deref(); }
void close();
bool allowsExitUnderMemoryPressure() const;
void updateSampleBufferDisplayLayerBoundsAndPosition(SampleBufferDisplayLayerIdentifier, WebCore::FloatRect, std::optional<MachSendRightAnnotated>&&);
std::optional<SharedPreferencesForWebProcess> sharedPreferencesForWebProcess() const { return m_sharedPreferencesForWebProcess; }
void updateSharedPreferencesForWebProcess(SharedPreferencesForWebProcess);
private:
explicit RemoteSampleBufferDisplayLayerManager(GPUConnectionToWebProcess&, SharedPreferencesForWebProcess&);
void startListeningForIPC();
// IPC::WorkQueueMessageReceiver overrides.
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
bool dispatchMessage(IPC::Connection&, IPC::Decoder&);
using LayerCreationCallback = CompletionHandler<void(WebCore::HostingContext)>&&;
void createLayer(SampleBufferDisplayLayerIdentifier, bool hideRootLayer, WebCore::IntSize, bool shouldMaintainAspectRatio, bool canShowWhileLocked, LayerCreationCallback);
void releaseLayer(SampleBufferDisplayLayerIdentifier);
ThreadSafeWeakPtr<GPUConnectionToWebProcess> m_connectionToWebProcess;
const Ref<IPC::Connection> m_connection;
SharedPreferencesForWebProcess m_sharedPreferencesForWebProcess;
const Ref<WorkQueue> m_queue;
mutable Lock m_layersLock;
HashMap<SampleBufferDisplayLayerIdentifier, Ref<RemoteSampleBufferDisplayLayer>> m_layers WTF_GUARDED_BY_LOCK(m_layersLock);
};
}
#endif // PLATFORM(COCOA) && ENABLE(GPU_PROCESS) && ENABLE(MEDIA_STREAM)
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