| /* |
| * Copyright (C) 2012-2018 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 |
| |
| #include "CallbackID.h" |
| #include "DrawingArea.h" |
| #include "GraphicsLayerCARemote.h" |
| #include "RemoteLayerTreeTransaction.h" |
| #include <WebCore/GraphicsLayerClient.h> |
| #include <WebCore/Timer.h> |
| #include <atomic> |
| #include <dispatch/dispatch.h> |
| #include <wtf/HashMap.h> |
| #include <wtf/WeakPtr.h> |
| |
| namespace WebCore { |
| class PlatformCALayer; |
| } |
| |
| namespace WebKit { |
| |
| class RemoteLayerTreeContext; |
| class RemoteLayerTreeDisplayRefreshMonitor; |
| |
| class RemoteLayerTreeDrawingArea : public DrawingArea, public CanMakeWeakPtr<RemoteLayerTreeDrawingArea>, public WebCore::GraphicsLayerClient { |
| friend class RemoteLayerTreeDisplayRefreshMonitor; |
| public: |
| RemoteLayerTreeDrawingArea(WebPage&, const WebPageCreationParameters&); |
| virtual ~RemoteLayerTreeDrawingArea(); |
| |
| TransactionID nextTransactionID() const { return m_currentTransactionID.next(); } |
| TransactionID lastCommittedTransactionID() const { return m_currentTransactionID; } |
| |
| private: |
| // DrawingArea |
| void setNeedsDisplay() override; |
| void setNeedsDisplayInRect(const WebCore::IntRect&) override; |
| void scroll(const WebCore::IntRect& scrollRect, const WebCore::IntSize& scrollDelta) override; |
| void updateGeometry(const WebCore::IntSize& viewSize, bool flushSynchronously, const WTF::MachSendRight& fencePort) override; |
| void adoptDisplayRefreshMonitorsFromDrawingArea(DrawingArea&) override; |
| |
| WebCore::GraphicsLayerFactory* graphicsLayerFactory() override; |
| void setRootCompositingLayer(WebCore::GraphicsLayer*) override; |
| void scheduleInitialDeferredPaint() override; |
| void scheduleCompositingLayerFlush() override; |
| void scheduleCompositingLayerFlushImmediately() override; |
| void attachViewOverlayGraphicsLayer(WebCore::GraphicsLayer*) override; |
| |
| void addTransactionCallbackID(CallbackID) override; |
| |
| RefPtr<WebCore::DisplayRefreshMonitor> createDisplayRefreshMonitor(WebCore::PlatformDisplayID) override; |
| void willDestroyDisplayRefreshMonitor(WebCore::DisplayRefreshMonitor*); |
| |
| bool shouldUseTiledBackingForFrameView(const WebCore::FrameView&) override; |
| |
| void updatePreferences(const WebPreferencesStore&) override; |
| |
| bool supportsAsyncScrolling() override { return true; } |
| |
| void setLayerTreeStateIsFrozen(bool) override; |
| bool layerTreeStateIsFrozen() const override { return m_isFlushingSuspended; } |
| bool layerFlushThrottlingIsActive() const override { return m_isThrottlingLayerFlushes && m_layerFlushTimer.isActive(); } |
| |
| void forceRepaint() override; |
| bool forceRepaintAsync(CallbackID) override { return false; } |
| |
| void setViewExposedRect(Optional<WebCore::FloatRect>) override; |
| Optional<WebCore::FloatRect> viewExposedRect() const override { return m_scrolledViewExposedRect; } |
| |
| void acceleratedAnimationDidStart(uint64_t layerID, const String& key, MonotonicTime startTime) override; |
| void acceleratedAnimationDidEnd(uint64_t layerID, const String& key) override; |
| |
| #if PLATFORM(IOS_FAMILY) |
| WebCore::FloatRect exposedContentRect() const override; |
| void setExposedContentRect(const WebCore::FloatRect&) override; |
| #endif |
| |
| void didUpdate() override; |
| |
| #if PLATFORM(IOS_FAMILY) |
| void setDeviceScaleFactor(float) override; |
| #endif |
| |
| void mainFrameContentSizeChanged(const WebCore::IntSize&) override; |
| |
| void activityStateDidChange(OptionSet<WebCore::ActivityState::Flag> changed, ActivityStateChangeID, const Vector<CallbackID>& callbackIDs) override; |
| |
| bool adjustLayerFlushThrottling(WebCore::LayerFlushThrottleState::Flags) override; |
| |
| bool addMilestonesToDispatch(OptionSet<WebCore::LayoutMilestone>) override; |
| |
| void updateScrolledExposedRect(); |
| void updateRootLayers(); |
| |
| void addCommitHandlers(); |
| void flushLayers(); |
| |
| WebCore::TiledBacking* mainFrameTiledBacking() const; |
| |
| TransactionID takeNextTransactionID() { return m_currentTransactionID.increment(); } |
| |
| bool markLayersVolatileImmediatelyIfPossible() override; |
| |
| void adoptLayersFromDrawingArea(DrawingArea&) override; |
| |
| class BackingStoreFlusher : public ThreadSafeRefCounted<BackingStoreFlusher> { |
| public: |
| static Ref<BackingStoreFlusher> create(IPC::Connection*, std::unique_ptr<IPC::Encoder>, Vector<RetainPtr<CGContextRef>>); |
| |
| void flush(); |
| bool hasFlushed() const { return m_hasFlushed; } |
| |
| private: |
| BackingStoreFlusher(IPC::Connection*, std::unique_ptr<IPC::Encoder>, Vector<RetainPtr<CGContextRef>>); |
| |
| RefPtr<IPC::Connection> m_connection; |
| std::unique_ptr<IPC::Encoder> m_commitEncoder; |
| Vector<RetainPtr<CGContextRef>> m_contextsToFlush; |
| |
| std::atomic<bool> m_hasFlushed; |
| }; |
| |
| std::unique_ptr<RemoteLayerTreeContext> m_remoteLayerTreeContext; |
| Ref<WebCore::GraphicsLayer> m_rootLayer; |
| |
| WebCore::IntSize m_viewSize; |
| |
| Optional<WebCore::FloatRect> m_viewExposedRect; |
| Optional<WebCore::FloatRect> m_scrolledViewExposedRect; |
| |
| WebCore::Timer m_layerFlushTimer; |
| bool m_isFlushingSuspended { false }; |
| bool m_hasDeferredFlush { false }; |
| bool m_flushingInitialDeferredPaint { false }; |
| bool m_isThrottlingLayerFlushes { false }; |
| bool m_isLayerFlushThrottlingTemporarilyDisabledForInteraction { false }; |
| bool m_isInitialThrottledLayerFlush { false }; |
| |
| bool m_waitingForBackingStoreSwap { false }; |
| bool m_hadFlushDeferredWhileWaitingForBackingStoreSwap { false }; |
| bool m_nextFlushIsForImmediatePaint { false }; |
| bool m_inFlushLayers { false }; |
| |
| dispatch_queue_t m_commitQueue; |
| RefPtr<BackingStoreFlusher> m_pendingBackingStoreFlusher; |
| |
| HashSet<RemoteLayerTreeDisplayRefreshMonitor*> m_displayRefreshMonitors; |
| HashSet<RemoteLayerTreeDisplayRefreshMonitor*>* m_displayRefreshMonitorsToNotify { nullptr }; |
| |
| TransactionID m_currentTransactionID; |
| Vector<RemoteLayerTreeTransaction::TransactionCallbackID> m_pendingCallbackIDs; |
| ActivityStateChangeID m_activityStateChangeID { ActivityStateChangeAsynchronous }; |
| |
| OptionSet<WebCore::LayoutMilestone> m_pendingNewlyReachedPaintingMilestones; |
| |
| RefPtr<WebCore::GraphicsLayer> m_contentLayer; |
| RefPtr<WebCore::GraphicsLayer> m_viewOverlayRootLayer; |
| }; |
| |
| inline bool RemoteLayerTreeDrawingArea::addMilestonesToDispatch(OptionSet<WebCore::LayoutMilestone> paintMilestones) |
| { |
| m_pendingNewlyReachedPaintingMilestones.add(paintMilestones); |
| return true; |
| } |
| |
| } // namespace WebKit |
| |
| SPECIALIZE_TYPE_TRAITS_DRAWING_AREA(RemoteLayerTreeDrawingArea, DrawingAreaTypeRemoteLayerTree) |