RemoteRenderingBackend.h [plain text]
#pragma once
#if ENABLE(GPU_PROCESS)
#include "Connection.h"
#include "GPUProcessWakeupMessageArguments.h"
#include "ImageBufferBackendHandle.h"
#include "ImageDataReference.h"
#include "MessageReceiver.h"
#include "MessageSender.h"
#include "RemoteResourceCache.h"
#include "RenderingBackendIdentifier.h"
#include <WebCore/ColorSpace.h>
#include <WebCore/DisplayList.h>
#include <WebCore/DisplayListItems.h>
#include <WebCore/DisplayListReplayer.h>
#include <wtf/WeakPtr.h>
#if PLATFORM(COCOA)
namespace WTF {
class MachSemaphore;
}
#endif
namespace WebCore {
namespace DisplayList {
class DisplayList;
class Item;
}
class FloatSize;
class NativeImage;
enum class ColorSpace : uint8_t;
enum class RenderingMode : bool;
}
namespace WebKit {
class DisplayListReaderHandle;
class GPUConnectionToWebProcess;
struct RemoteRenderingBackendCreationParameters;
class RemoteRenderingBackend
: public IPC::MessageSender
, private IPC::MessageReceiver
, public WebCore::DisplayList::ItemBufferReadingClient {
public:
static std::unique_ptr<RemoteRenderingBackend> create(GPUConnectionToWebProcess&, RemoteRenderingBackendCreationParameters&&);
virtual ~RemoteRenderingBackend();
GPUConnectionToWebProcess* gpuConnectionToWebProcess() const;
RemoteResourceCache& remoteResourceCache() { return m_remoteResourceCache; }
bool applyMediaItem(WebCore::DisplayList::ItemHandle, WebCore::GraphicsContext&);
void didCreateImageBufferBackend(ImageBufferBackendHandle, WebCore::RenderingResourceIdentifier);
void didFlush(WebCore::DisplayList::FlushIdentifier, WebCore::RenderingResourceIdentifier);
void setNextItemBufferToRead(WebCore::DisplayList::ItemBufferIdentifier, WebCore::RenderingResourceIdentifier destination);
private:
RemoteRenderingBackend(GPUConnectionToWebProcess&, RemoteRenderingBackendCreationParameters&&);
Optional<WebCore::DisplayList::ItemHandle> WARN_UNUSED_RETURN decodeItem(const uint8_t* data, size_t length, WebCore::DisplayList::ItemType, uint8_t* handleLocation) override;
template<typename T>
Optional<WebCore::DisplayList::ItemHandle> WARN_UNUSED_RETURN decodeAndCreate(const uint8_t* data, size_t length, uint8_t* handleLocation)
{
if (auto item = IPC::Decoder::decodeSingleObject<T>(data, length)) {
new (handleLocation + sizeof(uint64_t)) T(WTFMove(*item));
return {{ handleLocation }};
}
return WTF::nullopt;
}
WebCore::DisplayList::ReplayResult submit(const WebCore::DisplayList::DisplayList&, WebCore::ImageBuffer& destination);
RefPtr<WebCore::ImageBuffer> nextDestinationImageBufferAfterApplyingDisplayLists(WebCore::ImageBuffer& initialDestination, size_t initialOffset, DisplayListReaderHandle&, GPUProcessWakeupReason);
IPC::Connection* messageSenderConnection() const override;
uint64_t messageSenderDestinationID() const override;
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
void didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, std::unique_ptr<IPC::Encoder>&) override;
void createImageBuffer(const WebCore::FloatSize& logicalSize, WebCore::RenderingMode, float resolutionScale, WebCore::ColorSpace, WebCore::PixelFormat, WebCore::RenderingResourceIdentifier);
void wakeUpAndApplyDisplayList(const GPUProcessWakeupMessageArguments&);
void getImageData(WebCore::AlphaPremultiplication outputFormat, WebCore::IntRect srcRect, WebCore::RenderingResourceIdentifier, CompletionHandler<void(IPC::ImageDataReference&&)>&&);
void getDataURLForImageBuffer(const String& mimeType, Optional<double> quality, WebCore::PreserveResolution, WebCore::RenderingResourceIdentifier, CompletionHandler<void(String&&)>&&);
void getDataForImageBuffer(const String& mimeType, Optional<double> quality, WebCore::RenderingResourceIdentifier, CompletionHandler<void(Vector<uint8_t>&&)>&&);
void getBGRADataForImageBuffer(WebCore::RenderingResourceIdentifier, CompletionHandler<void(Vector<uint8_t>&&)>&&);
void cacheNativeImage(const ShareableBitmap::Handle&, WebCore::RenderingResourceIdentifier);
void cacheFont(Ref<WebCore::Font>&&);
void deleteAllFonts();
void releaseRemoteResource(WebCore::RenderingResourceIdentifier);
void didCreateSharedDisplayListHandle(WebCore::DisplayList::ItemBufferIdentifier, const SharedMemory::IPCHandle&, WebCore::RenderingResourceIdentifier destinationBufferIdentifier);
struct PendingWakeupInformation {
GPUProcessWakeupMessageArguments arguments;
Optional<WebCore::RenderingResourceIdentifier> missingCachedResourceIdentifier;
bool shouldPerformWakeup(WebCore::RenderingResourceIdentifier identifier) const
{
return arguments.destinationImageBufferIdentifier == identifier
|| missingCachedResourceIdentifier == identifier;
}
bool shouldPerformWakeup(WebCore::DisplayList::ItemBufferIdentifier identifier) const
{
return arguments.itemBufferIdentifier == identifier;
}
};
RemoteResourceCache m_remoteResourceCache;
WeakPtr<GPUConnectionToWebProcess> m_gpuConnectionToWebProcess;
RenderingBackendIdentifier m_renderingBackendIdentifier;
HashMap<WebCore::DisplayList::ItemBufferIdentifier, RefPtr<DisplayListReaderHandle>> m_sharedDisplayListHandles;
Optional<PendingWakeupInformation> m_pendingWakeupInfo;
#if PLATFORM(COCOA)
std::unique_ptr<WTF::MachSemaphore> m_resumeDisplayListSemaphore;
#endif
};
}
#endif // ENABLE(GPU_PROCESS)