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/*
* Copyright (C) 2020-2023 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 "RemoteRenderingBackendCreationParameters.h"
#include "RemoteRenderingBackendMessages.h"
#include "RemoteResourceCacheProxy.h"
#include "RemoteSerializedImageBufferIdentifier.h"
#include "RenderingBackendIdentifier.h"
#include "RenderingUpdateID.h"
#include "SharedMemory.h"
#include "StreamClientConnection.h"
#include <WebCore/RenderingResourceIdentifier.h>
#include <WebCore/Timer.h>
#include <span>
#include <wtf/Deque.h>
#include <wtf/HashMap.h>
#include <wtf/WeakPtr.h>
namespace WebCore {
class DestinationColorSpace;
class Filter;
class FloatSize;
class PixelBuffer;
enum class AlphaPremultiplication : uint8_t;
enum class RenderingMode : bool;
}
namespace WebKit {
class WebPage;
class RemoteImageBufferProxy;
class RemoteSerializedImageBufferProxy;
class RemoteImageBufferProxyFlushState;
class RemoteRenderingBackendProxy
: public IPC::Connection::Client, SerialFunctionDispatcher {
public:
static std::unique_ptr<RemoteRenderingBackendProxy> create(WebPage&);
static std::unique_ptr<RemoteRenderingBackendProxy> create(const RemoteRenderingBackendCreationParameters&, SerialFunctionDispatcher&);
~RemoteRenderingBackendProxy();
const RemoteRenderingBackendCreationParameters& parameters() const { return m_parameters; }
RemoteResourceCacheProxy& remoteResourceCacheProxy() { return m_remoteResourceCacheProxy; }
void transferImageBuffer(std::unique_ptr<RemoteSerializedImageBufferProxy>, WebCore::ImageBuffer&);
void moveToSerializedBuffer(WebCore::RenderingResourceIdentifier);
void moveToImageBuffer(WebCore::RenderingResourceIdentifier);
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::PixelFormat, bool avoidBackendSizeCheck = false);
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<ShareableBitmap> getShareableBitmap(WebCore::RenderingResourceIdentifier, WebCore::PreserveResolution);
RefPtr<WebCore::Image> getFilteredImage(WebCore::RenderingResourceIdentifier, WebCore::Filter&);
void cacheNativeImage(ShareableBitmap::Handle&&, WebCore::RenderingResourceIdentifier);
void cacheFont(const WebCore::Font::Attributes&, const WebCore::FontPlatformData::Attributes&, 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 releaseAllRemoteResources();
void releaseAllImageResources();
void releaseRenderingResource(WebCore::RenderingResourceIdentifier);
void markSurfacesVolatile(Vector<WebCore::RenderingResourceIdentifier>&&, CompletionHandler<void(bool madeAllVolatile)>&&);
struct BufferSet {
RefPtr<WebCore::ImageBuffer> front;
RefPtr<WebCore::ImageBuffer> back;
RefPtr<WebCore::ImageBuffer> secondaryBack;
};
struct LayerPrepareBuffersData {
BufferSet buffers;
bool supportsPartialRepaint { true };
bool hasEmptyDirtyRegion { false };
};
#if PLATFORM(COCOA)
struct SwapBuffersResult {
BufferSet buffers;
SwapBuffersDisplayRequirement displayRequirement;
};
Vector<SwapBuffersResult> prepareBuffersForDisplay(const 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_streamConnection; }
void didInitialize(IPC::Semaphore&& wakeUpSemaphore, IPC::Semaphore&& clientWaitSemaphore);
IPC::StreamClientConnection& streamConnection();
IPC::Connection* connection() { return m_connection.get(); }
template<typename T, typename C>
void sendToStreamWithAsyncReply(T&& message, C&& completionHandler)
{
streamConnection().sendWithAsyncReply(WTFMove(message), WTFMove(completionHandler), renderingBackendIdentifier(), Seconds::infinity());
}
SerialFunctionDispatcher& dispatcher() { return m_dispatcher; }
static constexpr Seconds defaultTimeout = 15_s;
private:
explicit RemoteRenderingBackendProxy(const RemoteRenderingBackendCreationParameters&, SerialFunctionDispatcher&);
template<typename T> auto send(T&& message);
template<typename T> auto sendSync(T&& message);
// Connection::Client
void didClose(IPC::Connection&) final;
void didReceiveInvalidMessage(IPC::Connection&, IPC::MessageName) 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<SharedMemory::Handle> updateSharedMemoryForGetPixelBuffer(size_t dataSize);
void destroyGetPixelBufferSharedMemory();
// Messages to be received.
void didCreateImageBufferBackend(ImageBufferBackendHandle&&, WebCore::RenderingResourceIdentifier);
void didFinalizeRenderingUpdate(RenderingUpdateID didRenderingUpdateID);
void didMarkLayersAsVolatile(MarkSurfacesAsVolatileRequestIdentifier, const Vector<WebCore::RenderingResourceIdentifier>& markedVolatileBufferIdentifiers, bool didMarkAllLayerAsVolatile);
// SerialFunctionDispatcher
void dispatch(Function<void()>&& function) final { m_dispatcher.dispatch(WTFMove(function)); }
#if ASSERT_ENABLED
void assertIsCurrent() const final { m_dispatcher.assertIsCurrent(); }
#endif
RefPtr<IPC::Connection> m_connection;
RefPtr<IPC::StreamClientConnection> m_streamConnection;
RemoteRenderingBackendCreationParameters m_parameters;
RemoteResourceCacheProxy m_remoteResourceCacheProxy { *this };
RefPtr<SharedMemory> m_getPixelBufferSharedMemory;
WebCore::Timer m_destroyGetPixelBufferSharedMemoryTimer { *this, &RemoteRenderingBackendProxy::destroyGetPixelBufferSharedMemory };
HashMap<MarkSurfacesAsVolatileRequestIdentifier, CompletionHandler<void(bool)>> m_markAsVolatileRequests;
SerialFunctionDispatcher& m_dispatcher;
RenderingUpdateID m_renderingUpdateID;
RenderingUpdateID m_didRenderingUpdateID;
};
} // namespace WebKit
#endif // ENABLE(GPU_PROCESS)
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