Title: [184472] branches/safari-601.1.32-branch/Source/WebKit2

Diff

Modified: branches/safari-601.1.32-branch/Source/WebKit2/ChangeLog (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/ChangeLog	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/ChangeLog	2015-05-18 14:21:53 UTC (rev 184472)
@@ -1,5 +1,59 @@
 2015-05-18  Matthew Hanson  <[email protected]>
 
+        Merge r184011. rdar://problem/19790341
+
+    2015-05-08  Timothy Horton  <[email protected]>
+
+            Flip the direction of the fence in scaleViewAndUpdateGeometryFenced
+            https://bugs.webkit.org/show_bug.cgi?id=144810
+
+            Reviewed by Simon Fraser.
+
+            Send the fence from the Web process to the UI process, instead of vice versa.
+            This means that we won't keep the UI process CAContext blocked for the whole
+            time that the Web process is doing layout/painting/etc. Instead, we'll start
+            blocking the Web process CAContext immediately after flushing and before committing,
+            and send the fence to the UI process to be applied immediately. This minimizes
+            the amount of time in both processes spent blocked on the fence.
+
+            * Platform/mac/LayerHostingContext.h:
+            * Platform/mac/LayerHostingContext.mm:
+            (WebKit::LayerHostingContext::createFencePort):
+            Add createFencePort, which creates a MachSendRight wrapping a CA fence port.
+            Note that you must setFencePort() with this port if you want the LayerHostingContext's
+            CAContext to block on it!
+
+            * UIProcess/WebPageProxy.cpp:
+            (WebKit::WebPageProxy::scaleViewAndUpdateGeometryFenced):
+            (WebKit::WebPageProxy::machSendRightCallback):
+            * UIProcess/WebPageProxy.h:
+            * UIProcess/WebPageProxy.messages.in:
+            Create a callback and send it to the Web process along with scaleViewAndUpdateGeometryFenced.
+
+            * UIProcess/mac/WKViewLayoutStrategy.mm:
+            (-[WKViewDynamicSizeWithMinimumViewSizeLayoutStrategy updateLayout]):
+            When called back, install the fence port in our CAContext; when the commit goes through,
+            remove the transient scale as we did previously.
+
+            * WebProcess/WebPage/DrawingArea.h:
+            (WebKit::DrawingArea::replyWithFenceAfterNextFlush):
+            (WebKit::DrawingArea::updateGeometry): Deleted.
+            * WebProcess/WebPage/WebPage.cpp:
+            (WebKit::WebPage::scaleViewAndUpdateGeometryFenced):
+            * WebProcess/WebPage/WebPage.h:
+            * WebProcess/WebPage/WebPage.messages.in:
+            Instead of installing a fence created in the UI process, tell the DrawingArea
+            to create one and reply to the UI process with it after the next flush.
+
+            * WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h:
+            * WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
+            (WebKit::TiledCoreAnimationDrawingArea::flushLayers):
+            (WebKit::TiledCoreAnimationDrawingArea::replyWithFenceAfterNextFlush):
+            After flushing, before committing, create a fence and reply to any
+            callbacks that requested fences, and install it in our context.
+
+2015-05-18  Matthew Hanson  <[email protected]>
+
         Merge r183978. rdar://problem/20635659
 
     2015-05-07  Conrad Shultz  <[email protected]>

Modified: branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.h (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.h	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.h	2015-05-18 14:21:53 UTC (rev 184472)
@@ -62,9 +62,14 @@
     void setColorSpace(CGColorSpaceRef);
     CGColorSpaceRef colorSpace() const;
 
-    // This only works on iOS and OS 10.10+
+    // Fences only work on iOS and OS 10.10+.
     void setFencePort(mach_port_t);
 
+    // createFencePort does not install the fence port on the LayerHostingContext's
+    // CAContext; call setFencePort() with the newly created port if synchronization
+    // with this context is desired.
+    WebCore::MachSendRight createFencePort();
+
 private:
     LayerHostingMode m_layerHostingMode;
     RetainPtr<CAContext> m_context;

Modified: branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.mm (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.mm	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/Platform/mac/LayerHostingContext.mm	2015-05-18 14:21:53 UTC (rev 184472)
@@ -107,11 +107,21 @@
 {
     [m_context setFencePort:fencePort];
 }
+
+MachSendRight LayerHostingContext::createFencePort()
+{
+    return MachSendRight::adopt([m_context createFencePort]);
+}
 #else
 NO_RETURN_DUE_TO_ASSERT void LayerHostingContext::setFencePort(mach_port_t fencePort)
 {
     ASSERT_NOT_REACHED();
 }
+
+NO_RETURN_DUE_TO_ASSERT const MachSendRight& LayerHostingContext::createFencePort()
+{
+    ASSERT_NOT_REACHED();
+}
 #endif
 
 } // namespace WebKit

Modified: branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.cpp (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.cpp	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.cpp	2015-05-18 14:21:53 UTC (rev 184472)
@@ -2248,15 +2248,18 @@
 }
 
 #if PLATFORM(COCOA)
-void WebPageProxy::scaleViewAndUpdateGeometryFenced(double scale, IntSize viewSize, const MachSendRight& fencePort)
+void WebPageProxy::scaleViewAndUpdateGeometryFenced(double scale, IntSize viewSize, std::function<void (const MachSendRight&, CallbackBase::Error)> callback)
 {
-    if (!isValid())
+    if (!isValid()) {
+        callback(MachSendRight(), CallbackBase::Error::OwnerWasInvalidated);
         return;
+    }
 
     m_viewScaleFactor = scale;
     if (m_drawingArea)
         m_drawingArea->willSendUpdateGeometry();
-    m_process->send(Messages::WebPage::ScaleViewAndUpdateGeometryFenced(scale, viewSize, fencePort), m_pageID);
+    uint64_t callbackID = m_callbacks.put(WTF::move(callback), m_process->throttler().backgroundActivityToken());
+    m_process->send(Messages::WebPage::ScaleViewAndUpdateGeometryFenced(scale, viewSize, callbackID), m_pageID);
 }
 #endif
 
@@ -4656,6 +4659,17 @@
     callback->performCallbackWithReturnValue(range);
 }
 
+#if PLATFORM(COCOA)
+void WebPageProxy::machSendRightCallback(const MachSendRight& sendRight, uint64_t callbackID)
+{
+    auto callback = m_callbacks.take<MachSendRightCallback>(callbackID);
+    if (!callback)
+        return;
+
+    callback->performCallbackWithReturnValue(sendRight);
+}
+#endif
+
 static bool shouldLogDiagnosticMessage(bool shouldSample)
 {
     if (!shouldSample)

Modified: branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.h (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.h	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.h	2015-05-18 14:21:53 UTC (rev 184472)
@@ -242,6 +242,10 @@
 typedef GenericCallback<const WebCore::IntPoint&, uint32_t> TouchesCallback;
 #endif
 
+#if PLATFORM(COCOA)
+typedef GenericCallback<const WebCore::MachSendRight&> MachSendRightCallback;
+#endif
+
 struct WebPageConfiguration {
     WebPageGroup* pageGroup = nullptr;
     WebPreferences* preferences = nullptr;
@@ -649,7 +653,7 @@
     double viewScaleFactor() const { return m_viewScaleFactor; }
     void scaleView(double scale);
 #if PLATFORM(COCOA)
-    void scaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, const WebCore::MachSendRight& fencePort);
+    void scaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, std::function<void (const WebCore::MachSendRight&, CallbackBase::Error)>);
 #endif
 
     float deviceScaleFactor() const;
@@ -1313,6 +1317,9 @@
     void validateCommandCallback(const String&, bool, int, uint64_t);
     void unsignedCallback(uint64_t, uint64_t);
     void editingRangeCallback(const EditingRange&, uint64_t);
+#if PLATFORM(COCOA)
+    void machSendRightCallback(const WebCore::MachSendRight&, uint64_t);
+#endif
     void rectForCharacterRangeCallback(const WebCore::IntRect&, const EditingRange&, uint64_t);
 #if PLATFORM(MAC)
     void attributedStringForCharacterRangeCallback(const AttributedString&, const EditingRange&, uint64_t);

Modified: branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.messages.in (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.messages.in	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/WebPageProxy.messages.in	2015-05-18 14:21:53 UTC (rev 184472)
@@ -194,6 +194,9 @@
 #if PLATFORM(GTK)
     PrintFinishedCallback(WebCore::ResourceError error, uint64_t callbackID)
 #endif
+#if PLATFORM(COCOA)
+    MachSendRightCallback(WebCore::MachSendRight sendRight, uint64_t callbackID)
+#endif
 
     PageScaleFactorDidChange(double scaleFactor)
     PluginScaleFactorDidChange(double zoomFactor)

Modified: branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/mac/WKViewLayoutStrategy.mm (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/mac/WKViewLayoutStrategy.mm	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/UIProcess/mac/WKViewLayoutStrategy.mm	2015-05-18 14:21:53 UTC (rev 184472)
@@ -293,12 +293,13 @@
         _wkView._rootLayer.transform = transform;
     } else if (scale != _page->viewScaleFactor()) {
 #if PLATFORM(IOS) || __MAC_OS_X_VERSION_MIN_REQUIRED >= 101000
-        CAContext *context = [_wkView.layer context];
-        MachSendRight fencePort = MachSendRight::adopt([context createFencePort]);
-        _page->scaleViewAndUpdateGeometryFenced(scale, IntSize(_wkView.frame.size), fencePort);
-        [context setFencePort:fencePort.sendRight() commitHandler:^{
-            _wkView._rootLayer.transform = CATransform3DIdentity;
-        }];
+        RetainPtr<CAContext> context = [_wkView.layer context];
+        RetainPtr<WKView> retainedWKView = _wkView;
+        _page->scaleViewAndUpdateGeometryFenced(scale, IntSize(_wkView.frame.size), [retainedWKView, context] (const WebCore::MachSendRight& fencePort, CallbackBase::Error) {
+            [context setFencePort:fencePort.sendRight() commitHandler:^{
+                [retainedWKView _rootLayer].transform = CATransform3DIdentity;
+            }];
+        });
 #else
         _page->scaleView(scale);
         _wkView._rootLayer.transform = CATransform3DIdentity;

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/DrawingArea.h (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/DrawingArea.h	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/DrawingArea.h	2015-05-18 14:21:53 UTC (rev 184472)
@@ -129,6 +129,8 @@
 #if PLATFORM(COCOA)
     // Used by TiledCoreAnimationDrawingArea.
     virtual void updateGeometry(const WebCore::IntSize& viewSize, const WebCore::IntSize& layerPosition, bool flushSynchronously) { }
+
+    virtual void replyWithFenceAfterNextFlush(uint64_t callbackID) { ASSERT_NOT_REACHED(); }
 #endif
 
 protected:

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.cpp (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.cpp	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.cpp	2015-05-18 14:21:53 UTC (rev 184472)
@@ -1449,11 +1449,11 @@
 
 
 #if PLATFORM(COCOA)
-void WebPage::scaleViewAndUpdateGeometryFenced(double scale, IntSize viewSize, const MachSendRight& fencePort)
+void WebPage::scaleViewAndUpdateGeometryFenced(double scale, IntSize viewSize, uint64_t callbackID)
 {
     scaleView(scale);
     m_drawingArea->updateGeometry(viewSize, IntSize(), false);
-    m_drawingArea->addFence(fencePort);
+    m_drawingArea->replyWithFenceAfterNextFlush(callbackID);
 }
 #endif
 

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.h (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.h	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.h	2015-05-18 14:21:53 UTC (rev 184472)
@@ -362,7 +362,7 @@
     double viewScaleFactor() const { return m_viewScaleFactor; }
     void scaleView(double scale);
 #if PLATFORM(COCOA)
-    void scaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, const WebCore::MachSendRight& fencePort);
+    void scaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, uint64_t callbackID);
 #endif
 
     void setUseFixedLayout(bool);

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.messages.in (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.messages.in	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/WebPage.messages.in	2015-05-18 14:21:53 UTC (rev 184472)
@@ -203,7 +203,7 @@
     ScalePageInViewCoordinates(double scale, WebCore::IntPoint centerInViewCoordinates)
     ScaleView(double scale)
 #if PLATFORM(COCOA)
-    ScaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, WebCore::MachSendRight fencePort)
+    ScaleViewAndUpdateGeometryFenced(double scale, WebCore::IntSize viewSize, uint64_t callbackID)
 #endif
 
     SetUseFixedLayout(bool fixed)

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.h	2015-05-18 14:21:53 UTC (rev 184472)
@@ -86,6 +86,8 @@
 
     virtual void attachViewOverlayGraphicsLayer(WebCore::Frame*, WebCore::GraphicsLayer*) override;
 
+    virtual void replyWithFenceAfterNextFlush(uint64_t callbackID) override;
+
     // WebCore::LayerFlushSchedulerClient
     virtual bool flushLayers() override;
 
@@ -146,6 +148,8 @@
     bool m_wantsDidUpdateViewState;
 
     WebCore::GraphicsLayer* m_viewOverlayRootLayer;
+
+    Vector<uint64_t> m_fenceCallbacksForAfterNextFlush;
 };
 
 } // namespace WebKit

Modified: branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm (184471 => 184472)


--- branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm	2015-05-18 14:21:37 UTC (rev 184471)
+++ branches/safari-601.1.32-branch/Source/WebKit2/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm	2015-05-18 14:21:53 UTC (rev 184472)
@@ -329,6 +329,16 @@
         if (m_transientZoomScale != 1)
             applyTransientZoomToLayers(m_transientZoomScale, m_transientZoomOrigin);
 
+        if (!m_fenceCallbacksForAfterNextFlush.isEmpty()) {
+            MachSendRight fencePort = m_layerHostingContext->createFencePort();
+
+            for (auto callbackID : m_fenceCallbacksForAfterNextFlush)
+                m_webPage.send(Messages::WebPageProxy::MachSendRightCallback(fencePort, callbackID));
+            m_fenceCallbacksForAfterNextFlush.clear();
+
+            m_layerHostingContext->setFencePort(fencePort.sendRight());
+        }
+
         return returnValue;
     }
 }
@@ -746,6 +756,11 @@
     m_layerHostingContext->setFencePort(fencePort.sendRight());
 }
 
+void TiledCoreAnimationDrawingArea::replyWithFenceAfterNextFlush(uint64_t callbackID)
+{
+    m_fenceCallbacksForAfterNextFlush.append(callbackID);
+}
+
 } // namespace WebKit
 
 #endif // !PLATFORM(IOS)
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