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/*
* Copyright (C) 2020-2024 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 ENABLE(GPU_PROCESS)
#include "GPUProcessConnection.h"
#include "IPCSemaphore.h"
#include "ImageBufferBackendHandle.h"
#include "MarkSurfacesAsVolatileRequestIdentifier.h"
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "RemoteDisplayListRecorderMessages.h"
#include "RemoteImageBufferProxy.h"
#include "RemoteRenderingBackendMessages.h"
#include "RemoteResourceCacheProxy.h"
#include "RemoteSerializedImageBufferIdentifier.h"
#include "RenderingBackendIdentifier.h"
#include "RenderingUpdateID.h"
#include "StreamClientConnection.h"
#include "ThreadSafeObjectHeap.h"
#include "WorkQueueMessageReceiver.h"
#include <WebCore/ImageBufferResourceLimits.h>
#include <WebCore/RenderingResourceIdentifier.h>
#include <WebCore/SharedMemory.h>
#include <WebCore/Timer.h>
#include <span>
#include <wtf/Deque.h>
#include <wtf/HashMap.h>
#include <wtf/WeakPtr.h>
#include <wtf/WorkQueue.h>
namespace WebCore {
class DestinationColorSpace;
class Filter;
class FloatSize;
class PixelBuffer;
enum class AlphaPremultiplication : uint8_t;
enum class RenderingMode : uint8_t;
}
namespace WebKit {
class WebPage;
class RemoteImageBufferProxy;
class RemoteSerializedImageBufferProxy;
class RemoteSharedResourceCacheProxy;
class RemoteLayerBackingStore;
class RemoteImageBufferProxyFlushState;
class RemoteImageBufferSetProxy;
class RemoteRenderingBackendProxy
: public IPC::Connection::Client, public RefCounted<RemoteRenderingBackendProxy>, SerialFunctionDispatcher {
WTF_MAKE_FAST_ALLOCATED;
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(RemoteRenderingBackendProxy);
public:
static Ref<RemoteRenderingBackendProxy> create(WebPage&);
static Ref<RemoteRenderingBackendProxy> create(SerialFunctionDispatcher&);
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
~RemoteRenderingBackendProxy();
static bool canMapRemoteImageBufferBackendBackingStore();
RemoteResourceCacheProxy& remoteResourceCacheProxy() { return m_remoteResourceCacheProxy; }
void transferImageBuffer(std::unique_ptr<RemoteSerializedImageBufferProxy>, WebCore::ImageBuffer&);
void moveToSerializedBuffer(WebCore::RenderingResourceIdentifier);
void moveToImageBuffer(WebCore::RenderingResourceIdentifier);
#if PLATFORM(COCOA)
void didDrawRemoteToPDF(WebCore::PageIdentifier, WebCore::RenderingResourceIdentifier imageBufferIdentifier, WebCore::SnapshotIdentifier);
#endif
void createRemoteImageBuffer(WebCore::ImageBuffer&);
bool isCached(const WebCore::ImageBuffer&) const;
// IPC::MessageReceiver
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
bool didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, UniqueRef<IPC::Encoder>&) override;
// Messages to be sent.
RefPtr<WebCore::ImageBuffer> createImageBuffer(const WebCore::FloatSize&, WebCore::RenderingMode, WebCore::RenderingPurpose, float resolutionScale, const WebCore::DestinationColorSpace&, WebCore::ImageBufferPixelFormat);
void releaseImageBuffer(WebCore::RenderingResourceIdentifier);
bool getPixelBufferForImageBuffer(WebCore::RenderingResourceIdentifier, const WebCore::PixelBufferFormat& destinationFormat, const WebCore::IntRect& srcRect, std::span<uint8_t> result);
void putPixelBufferForImageBuffer(WebCore::RenderingResourceIdentifier, const WebCore::PixelBuffer&, const WebCore::IntRect& srcRect, const WebCore::IntPoint& destPoint, WebCore::AlphaPremultiplication destFormat);
RefPtr<WebCore::ShareableBitmap> getShareableBitmap(WebCore::RenderingResourceIdentifier, WebCore::PreserveResolution);
void cacheNativeImage(WebCore::ShareableBitmap::Handle&&, WebCore::RenderingResourceIdentifier);
void cacheFont(const WebCore::Font::Attributes&, const WebCore::FontPlatformDataAttributes&, std::optional<WebCore::RenderingResourceIdentifier>);
void cacheFontCustomPlatformData(Ref<const WebCore::FontCustomPlatformData>&&);
void cacheDecomposedGlyphs(Ref<WebCore::DecomposedGlyphs>&&);
void cacheGradient(Ref<WebCore::Gradient>&&);
void cacheFilter(Ref<WebCore::Filter>&&);
void releaseAllDrawingResources();
void releaseAllImageResources();
void releaseRenderingResource(WebCore::RenderingResourceIdentifier);
void markSurfacesVolatile(Vector<std::pair<Ref<RemoteImageBufferSetProxy>, OptionSet<BufferInSetType>>>&&, CompletionHandler<void(bool madeAllVolatile)>&&, bool forcePurge);
RefPtr<RemoteImageBufferSetProxy> createRemoteImageBufferSet();
void releaseRemoteImageBufferSet(RemoteImageBufferSetProxy&);
void getImageBufferResourceLimitsForTesting(CompletionHandler<void(WebCore::ImageBufferResourceLimits)>&&);
#if USE(GRAPHICS_LAYER_WC)
Function<bool()> flushImageBuffers();
#endif
std::unique_ptr<RemoteDisplayListRecorderProxy> createDisplayListRecorder(WebCore::RenderingResourceIdentifier, const WebCore::FloatSize&, WebCore::RenderingMode, WebCore::RenderingPurpose, float resolutionScale, const WebCore::DestinationColorSpace&, WebCore::ImageBufferPixelFormat);
struct BufferSet {
RefPtr<WebCore::ImageBuffer> front;
RefPtr<WebCore::ImageBuffer> back;
RefPtr<WebCore::ImageBuffer> secondaryBack;
};
struct LayerPrepareBuffersData {
RefPtr<RemoteImageBufferSetProxy> bufferSet;
WebCore::Region dirtyRegion;
bool supportsPartialRepaint { true };
bool hasEmptyDirtyRegion { false };
bool requiresClearedPixels { true };
};
#if PLATFORM(COCOA)
Vector<SwapBuffersDisplayRequirement> prepareImageBufferSetsForDisplay(Vector<LayerPrepareBuffersData>&&);
#endif
void finalizeRenderingUpdate();
void didPaintLayers();
RenderingUpdateID renderingUpdateID() const { return m_renderingUpdateID; }
unsigned delayedRenderingUpdateCount() const { return m_renderingUpdateID - m_didRenderingUpdateID; }
RenderingBackendIdentifier renderingBackendIdentifier() const;
RenderingBackendIdentifier ensureBackendCreated();
bool isGPUProcessConnectionClosed() const { return !m_connection; }
void didInitialize(IPC::Semaphore&& wakeUpSemaphore, IPC::Semaphore&& clientWaitSemaphore);
RefPtr<IPC::StreamClientConnection> connection();
bool isCurrent() const final;
Ref<WorkQueue> workQueue() { return m_queue; }
void didBecomeUnresponsive();
static constexpr Seconds defaultTimeout = 15_s;
private:
explicit RemoteRenderingBackendProxy(SerialFunctionDispatcher&);
template<typename T, typename U, typename V, typename W> auto send(T&& message, ObjectIdentifierGeneric<U, V, W>);
template<typename T> auto send(T&& message) { return send(std::forward<T>(message), renderingBackendIdentifier()); }
template<typename T, typename U, typename V, typename W> auto sendSync(T&& message, ObjectIdentifierGeneric<U, V, W>);
template<typename T> auto sendSync(T&& message) { return sendSync(std::forward<T>(message), renderingBackendIdentifier()); }
template<typename T, typename C, typename U, typename V, typename W> auto sendWithAsyncReply(T&& message, C&& callback, ObjectIdentifierGeneric<U, V, W>);
template<typename T, typename C> auto sendWithAsyncReply(T&& message, C&& callback) { return sendWithAsyncReply(std::forward<T>(message), std::forward<C>(callback), renderingBackendIdentifier()); }
// Connection::Client
void didClose(IPC::Connection&) final;
void didReceiveInvalidMessage(IPC::Connection&, IPC::MessageName, int32_t indexOfObjectFailingDecoding) final { }
void disconnectGPUProcess();
void ensureGPUProcessConnection();
bool dispatchMessage(IPC::Connection&, IPC::Decoder&);
bool dispatchSyncMessage(IPC::Connection&, IPC::Decoder&, UniqueRef<IPC::Encoder>&);
// Returns std::nullopt if no update is needed or allocation failed.
// Returns handle if that should be sent to the receiver process.
std::optional<WebCore::SharedMemory::Handle> updateSharedMemoryForGetPixelBuffer(size_t dataSize);
void destroyGetPixelBufferSharedMemory();
// Messages to be received.
void didCreateImageBufferBackend(ImageBufferBackendHandle&&, WebCore::RenderingResourceIdentifier);
void didFinalizeRenderingUpdate(RenderingUpdateID didRenderingUpdateID);
void didMarkLayersAsVolatile(MarkSurfacesAsVolatileRequestIdentifier, Vector<std::pair<RemoteImageBufferSetIdentifier, OptionSet<BufferInSetType>>>, bool didMarkAllLayerAsVolatile);
// SerialFunctionDispatcher
void dispatch(Function<void()>&&) final;
RefPtr<IPC::StreamClientConnection> protectedConnection() const { return m_connection; }
ThreadSafeWeakPtr<SerialFunctionDispatcher> m_dispatcher;
WeakPtr<GPUProcessConnection> m_gpuProcessConnection; // Only for main thread operation.
RefPtr<IPC::StreamClientConnection> m_connection;
RefPtr<RemoteSharedResourceCacheProxy> m_sharedResourceCache;
RenderingBackendIdentifier m_identifier { RenderingBackendIdentifier::generate() };
RemoteResourceCacheProxy m_remoteResourceCacheProxy { *this };
RefPtr<WebCore::SharedMemory> m_getPixelBufferSharedMemory;
WebCore::Timer m_destroyGetPixelBufferSharedMemoryTimer { *this, &RemoteRenderingBackendProxy::destroyGetPixelBufferSharedMemory };
HashMap<MarkSurfacesAsVolatileRequestIdentifier, CompletionHandler<void(bool)>> m_markAsVolatileRequests;
HashMap<RemoteImageBufferSetIdentifier, WeakPtr<RemoteImageBufferSetProxy>> m_bufferSets;
Ref<WorkQueue> m_queue;
RenderingUpdateID m_renderingUpdateID;
RenderingUpdateID m_didRenderingUpdateID;
bool m_isResponsive { true };
};
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
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