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-rw-r--r--src/3rdparty/webkit/VERSION2
-rw-r--r--src/3rdparty/webkit/WebCore/ChangeLog46
-rw-r--r--src/3rdparty/webkit/WebCore/WebCore.pro4
-rw-r--r--src/3rdparty/webkit/WebCore/page/FrameView.cpp75
-rw-r--r--src/3rdparty/webkit/WebCore/page/FrameView.h7
-rw-r--r--src/3rdparty/webkit/WebCore/platform/ScrollView.cpp7
-rw-r--r--src/3rdparty/webkit/WebCore/platform/ScrollView.h3
-rw-r--r--src/3rdparty/webkit/WebCore/rendering/RenderBlock.h1
-rw-r--r--src/3rdparty/webkit/WebCore/rendering/RenderBox.cpp10
-rw-r--r--src/3rdparty/webkit/WebCore/rendering/RenderBoxModelObject.cpp11
-rw-r--r--src/3rdparty/webkit/WebCore/rendering/RenderObject.cpp15
-rw-r--r--src/network/kernel/qhostinfo.cpp1
-rw-r--r--src/network/kernel/qhostinfo_p.h3
13 files changed, 178 insertions, 7 deletions
diff --git a/src/3rdparty/webkit/VERSION b/src/3rdparty/webkit/VERSION
index a2d5f37..def66ef 100644
--- a/src/3rdparty/webkit/VERSION
+++ b/src/3rdparty/webkit/VERSION
@@ -8,4 +8,4 @@ The commit imported was from the
and has the sha1 checksum
- 266a6c4f1938dd9edf4a8125faf91c62495e3ce2
+ d95c54951e7af2aa7def4346a142b2162bd89bbd
diff --git a/src/3rdparty/webkit/WebCore/ChangeLog b/src/3rdparty/webkit/WebCore/ChangeLog
index a3f70d3..869e225 100644
--- a/src/3rdparty/webkit/WebCore/ChangeLog
+++ b/src/3rdparty/webkit/WebCore/ChangeLog
@@ -1,3 +1,49 @@
+2010-01-31 Benjamin Poulain <benjamin.poulain@nokia.com>
+
+ Reviewed by Eric Seidel.
+
+ [Qt] Enable FAST_MOBILE_SCROLLING on Qt embedded platforms
+ https://bugs.webkit.org/show_bug.cgi?id=34168
+
+ Enable FAST_MOBILE_SCROLLING for Qt on Maemo 5, Linux embedded
+ and Symbian
+
+ * WebCore.pro:
+
+2010-01-19 Daniel Bates <dbates@rim.com>
+
+ Reviewed by Adam Treat.
+
+ https://bugs.webkit.org/show_bug.cgi?id=33408
+
+ Implements an optimization to ignore fixed background images
+ (i.e. background-attachment: fixed) when a page does not contain
+ any fixed position elements so as to allow fast repaints (via bit
+ blit) when scrolling a page.
+
+ Currently, if a page has elements that specify either a fixed
+ background or a fixed position then we perform a slow repaint
+ (i.e disable blitting) so as to avoid rendering artifacts.
+ However, on low-powered/mobile devices slow repaints can cause
+ noticeable delays when scrolling a page with a fixed background
+ image. By sacrificing support for fixed background images when
+ there are no fixed elements on the page and with come care, we
+ don't need to force slow repaints and can avoid rendering artifacts.
+ Hence, on such devices we can improve the responsiveness of
+ scrolling a page with a fixed background image.
+
+ Note, this optimization is only enabled if the WebKit is built
+ with FAST_MOBILE_SCROLLING enabled.
+
+ Tests: fast/fast-mobile-scrolling/fixed-position-element.html
+ fast/fast-mobile-scrolling/no-fixed-position-elements.html
+
+ * rendering/RenderBoxModelObject.cpp:
+ (WebCore::RenderBoxModelObject::calculateBackgroundImageGeometry):
+ Disable fixed background attachment if we can blit on scroll.
+ * rendering/RenderObject.cpp:
+ (WebCore::RenderObject::styleWillChange):
+
2010-03-11 Simon Hausmann <simon.hausmann@nokia.com>
Reviewed by Tor Arne Vestbø.
diff --git a/src/3rdparty/webkit/WebCore/WebCore.pro b/src/3rdparty/webkit/WebCore/WebCore.pro
index 5654a18..735c8ef 100644
--- a/src/3rdparty/webkit/WebCore/WebCore.pro
+++ b/src/3rdparty/webkit/WebCore/WebCore.pro
@@ -162,6 +162,10 @@ contains(DEFINES, ENABLE_SINGLE_THREADED=1) {
DEFINES += ENABLE_SVG_FONTS=0 ENABLE_SVG_FOREIGN_OBJECT=0 ENABLE_SVG_ANIMATION=0 ENABLE_SVG_AS_IMAGE=0 ENABLE_SVG_USE=0
}
+mameo5|symbian|embedded {
+ DEFINES += ENABLE_FAST_MOBILE_SCROLLING=1
+}
+
# HTML5 ruby support
!contains(DEFINES, ENABLE_RUBY=.): DEFINES += ENABLE_RUBY=1
diff --git a/src/3rdparty/webkit/WebCore/page/FrameView.cpp b/src/3rdparty/webkit/WebCore/page/FrameView.cpp
index bc4e4f2..4c3a0ab 100644
--- a/src/3rdparty/webkit/WebCore/page/FrameView.cpp
+++ b/src/3rdparty/webkit/WebCore/page/FrameView.cpp
@@ -106,6 +106,7 @@ struct ScheduledEvent {
FrameView::FrameView(Frame* frame)
: m_frame(frame)
, m_slowRepaintObjectCount(0)
+ , m_fixedObjectCount(0)
, m_layoutTimer(this, &FrameView::layoutTimerFired)
, m_layoutRoot(0)
, m_postLayoutTasksTimer(this, &FrameView::postLayoutTimerFired)
@@ -735,7 +736,7 @@ String FrameView::mediaType() const
bool FrameView::useSlowRepaints() const
{
- return m_useSlowRepaints || m_slowRepaintObjectCount > 0 || m_isOverlapped || !m_contentIsOpaque;
+ return m_useSlowRepaints || m_slowRepaintObjectCount > 0 || (platformWidget() && m_fixedObjectCount > 0) || m_isOverlapped || !m_contentIsOpaque;
}
void FrameView::setUseSlowRepaints()
@@ -759,6 +760,78 @@ void FrameView::removeSlowRepaintObject()
setCanBlitOnScroll(!useSlowRepaints());
}
+void FrameView::addFixedObject()
+{
+ if (!m_fixedObjectCount && platformWidget())
+ setCanBlitOnScroll(false);
+ ++m_fixedObjectCount;
+}
+
+void FrameView::removeFixedObject()
+{
+ ASSERT(m_fixedObjectCount > 0);
+ m_fixedObjectCount--;
+ if (!m_fixedObjectCount)
+ setCanBlitOnScroll(!useSlowRepaints());
+}
+
+void FrameView::scrollContentsFastPath(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect)
+{
+ const size_t fixedObjectThreshold = 5;
+
+ ListHashSet<RenderBox*>* positionedObjects = 0;
+ if (RenderView* root = m_frame->contentRenderer())
+ positionedObjects = root->positionedObjects();
+
+ if (!positionedObjects || positionedObjects->isEmpty()) {
+ hostWindow()->scroll(scrollDelta, rectToScroll, clipRect);
+ return;
+ }
+
+ // Get the rects of the fixed objects visible in the rectToScroll
+ Vector<IntRect, fixedObjectThreshold> subRectToUpdate;
+ bool updateInvalidatedSubRect = true;
+ ListHashSet<RenderBox*>::const_iterator end = positionedObjects->end();
+ for (ListHashSet<RenderBox*>::const_iterator it = positionedObjects->begin(); it != end; ++it) {
+ RenderBox* renderBox = *it;
+ if (renderBox->style()->position() != FixedPosition)
+ continue;
+ IntRect topLevelRect;
+ IntRect updateRect = renderBox->paintingRootRect(topLevelRect);
+ updateRect.move(-scrollX(), -scrollY());
+ updateRect.intersect(rectToScroll);
+ if (!updateRect.isEmpty()) {
+ if (subRectToUpdate.size() >= fixedObjectThreshold) {
+ updateInvalidatedSubRect = false;
+ break;
+ }
+ subRectToUpdate.append(updateRect);
+ }
+ }
+
+ // Scroll the view
+ if (updateInvalidatedSubRect) {
+ // 1) scroll
+ hostWindow()->scroll(scrollDelta, rectToScroll, clipRect);
+
+ // 2) update the area of fixed objets that has been invalidated
+ size_t fixObjectsCount = subRectToUpdate.size();
+ for (size_t i = 0; i < fixObjectsCount; ++i) {
+ IntRect updateRect = subRectToUpdate[i];
+ IntRect scrolledRect = updateRect;
+ scrolledRect.move(scrollDelta);
+ updateRect.unite(scrolledRect);
+ updateRect.intersect(rectToScroll);
+ hostWindow()->repaint(updateRect, true, false, true);
+ }
+ } else {
+ // the number of fixed objects exceed the threshold, so we repaint everything.
+ IntRect updateRect = clipRect;
+ updateRect.intersect(rectToScroll);
+ hostWindow()->repaint(updateRect, true, false, true);
+ }
+}
+
void FrameView::setIsOverlapped(bool isOverlapped)
{
if (isOverlapped == m_isOverlapped)
diff --git a/src/3rdparty/webkit/WebCore/page/FrameView.h b/src/3rdparty/webkit/WebCore/page/FrameView.h
index 3d17d2c..5243c02 100644
--- a/src/3rdparty/webkit/WebCore/page/FrameView.h
+++ b/src/3rdparty/webkit/WebCore/page/FrameView.h
@@ -143,6 +143,9 @@ public:
void addSlowRepaintObject();
void removeSlowRepaintObject();
+ void addFixedObject();
+ void removeFixedObject();
+
void beginDeferredRepaints();
void endDeferredRepaints();
void checkStopDelayingDeferredRepaints();
@@ -196,6 +199,9 @@ public:
bool isFrameViewScrollCorner(RenderScrollbarPart* scrollCorner) const { return m_scrollCorner == scrollCorner; }
void invalidateScrollCorner();
+protected:
+ virtual void scrollContentsFastPath(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect);
+
private:
FrameView(Frame*);
@@ -261,6 +267,7 @@ private:
bool m_isOverlapped;
bool m_contentIsOpaque;
unsigned m_slowRepaintObjectCount;
+ unsigned m_fixedObjectCount;
int m_borderX, m_borderY;
diff --git a/src/3rdparty/webkit/WebCore/platform/ScrollView.cpp b/src/3rdparty/webkit/WebCore/platform/ScrollView.cpp
index e67daf9..9e15c43 100644
--- a/src/3rdparty/webkit/WebCore/platform/ScrollView.cpp
+++ b/src/3rdparty/webkit/WebCore/platform/ScrollView.cpp
@@ -509,7 +509,7 @@ void ScrollView::scrollContents(const IntSize& scrollDelta)
if (canBlitOnScroll()) { // The main frame can just blit the WebView window
// FIXME: Find a way to blit subframes without blitting overlapping content
- hostWindow()->scroll(-scrollDelta, scrollViewRect, clipRect);
+ scrollContentsFastPath(-scrollDelta, scrollViewRect, clipRect);
} else {
// We need to go ahead and repaint the entire backing store. Do it now before moving the
// windowed plugins.
@@ -524,6 +524,11 @@ void ScrollView::scrollContents(const IntSize& scrollDelta)
hostWindow()->paint();
}
+void ScrollView::scrollContentsFastPath(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect)
+{
+ hostWindow()->scroll(scrollDelta, rectToScroll, clipRect);
+}
+
IntPoint ScrollView::windowToContents(const IntPoint& windowPoint) const
{
IntPoint viewPoint = convertFromContainingWindow(windowPoint);
diff --git a/src/3rdparty/webkit/WebCore/platform/ScrollView.h b/src/3rdparty/webkit/WebCore/platform/ScrollView.h
index 5dacff5..7060d07 100644
--- a/src/3rdparty/webkit/WebCore/platform/ScrollView.h
+++ b/src/3rdparty/webkit/WebCore/platform/ScrollView.h
@@ -244,6 +244,9 @@ protected:
IntRect scrollCornerRect() const;
virtual void updateScrollCorner();
virtual void paintScrollCorner(GraphicsContext*, const IntRect& cornerRect);
+
+ // Scroll the content by blitting the pixels
+ virtual void scrollContentsFastPath(const IntSize& scrollDelta, const IntRect& rectToScroll, const IntRect& clipRect);
private:
RefPtr<Scrollbar> m_horizontalScrollbar;
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderBlock.h b/src/3rdparty/webkit/WebCore/rendering/RenderBlock.h
index 7ba5fce..3300d01 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderBlock.h
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderBlock.h
@@ -75,6 +75,7 @@ public:
void insertPositionedObject(RenderBox*);
void removePositionedObject(RenderBox*);
void removePositionedObjects(RenderBlock*);
+ ListHashSet<RenderBox*>* positionedObjects() const { return m_positionedObjects; }
void addPercentHeightDescendant(RenderBox*);
static void removePercentHeightDescendant(RenderBox*);
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderBox.cpp b/src/3rdparty/webkit/WebCore/rendering/RenderBox.cpp
index 1df82a4..7ca2ff8 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderBox.cpp
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderBox.cpp
@@ -145,6 +145,16 @@ void RenderBox::styleWillChange(StyleDifference diff, const RenderStyle* newStyl
removeFloatingOrPositionedChildFromBlockLists();
}
}
+ if (FrameView *frameView = view()->frameView()) {
+ bool newStyleIsFixed = newStyle && newStyle->position() == FixedPosition;
+ bool oldStyleIsFixed = style() && style()->position() == FixedPosition;
+ if (newStyleIsFixed != oldStyleIsFixed) {
+ if (newStyleIsFixed)
+ frameView->addFixedObject();
+ else
+ frameView->removeFixedObject();
+ }
+ }
RenderBoxModelObject::styleWillChange(diff, newStyle);
}
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderBoxModelObject.cpp b/src/3rdparty/webkit/WebCore/rendering/RenderBoxModelObject.cpp
index 23dad2d..9d0f1ed 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderBoxModelObject.cpp
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderBoxModelObject.cpp
@@ -557,6 +557,17 @@ void RenderBoxModelObject::calculateBackgroundImageGeometry(const FillLayer* fil
// Determine the background positioning area and set destRect to the background painting area.
// destRect will be adjusted later if the background is non-repeating.
bool fixedAttachment = fillLayer->attachment() == FixedBackgroundAttachment;
+
+#if ENABLE(FAST_MOBILE_SCROLLING)
+ if (view()->frameView() && view()->frameView()->canBlitOnScroll()) {
+ // As a side effect of an optimization to blit on scroll, we do not honor the CSS
+ // property "background-attachment: fixed" because it may result in rendering
+ // artifacts. Note, these artifacts only appear if we are blitting on scroll of
+ // a page that has fixed background images.
+ fixedAttachment = false;
+ }
+#endif
+
if (!fixedAttachment) {
destRect = IntRect(tx, ty, w, h);
diff --git a/src/3rdparty/webkit/WebCore/rendering/RenderObject.cpp b/src/3rdparty/webkit/WebCore/rendering/RenderObject.cpp
index a10ffd9..199de4a 100644
--- a/src/3rdparty/webkit/WebCore/rendering/RenderObject.cpp
+++ b/src/3rdparty/webkit/WebCore/rendering/RenderObject.cpp
@@ -1591,10 +1591,17 @@ void RenderObject::styleWillChange(StyleDifference diff, const RenderStyle* newS
s_affectsParentBlock = false;
if (view()->frameView()) {
- // FIXME: A better solution would be to only invalidate the fixed regions when scrolling. It's overkill to
- // prevent the entire view from blitting on a scroll.
- bool newStyleSlowScroll = newStyle && (newStyle->position() == FixedPosition || newStyle->hasFixedBackgroundImage());
- bool oldStyleSlowScroll = m_style && (m_style->position() == FixedPosition || m_style->hasFixedBackgroundImage());
+ bool shouldBlitOnFixedBackgroundImage = false;
+#if ENABLE(FAST_MOBILE_SCROLLING)
+ // On low-powered/mobile devices, preventing blitting on a scroll can cause noticeable delays
+ // when scrolling a page with a fixed background image. As an optimization, assuming there are
+ // no fixed positoned elements on the page, we can acclerate scrolling (via blitting) if we
+ // ignore the CSS property "background-attachment: fixed".
+ shouldBlitOnFixedBackgroundImage = true;
+#endif
+
+ bool newStyleSlowScroll = newStyle && !shouldBlitOnFixedBackgroundImage && newStyle->hasFixedBackgroundImage();
+ bool oldStyleSlowScroll = m_style && !shouldBlitOnFixedBackgroundImage && m_style->hasFixedBackgroundImage();
if (oldStyleSlowScroll != newStyleSlowScroll) {
if (oldStyleSlowScroll)
view()->frameView()->removeSlowRepaintObject();
diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp
index 7150fb7..6894978 100644
--- a/src/network/kernel/qhostinfo.cpp
+++ b/src/network/kernel/qhostinfo.cpp
@@ -479,6 +479,7 @@ void QHostInfoRunnable::run()
QHostInfoLookupManager::QHostInfoLookupManager() : mutex(QMutex::Recursive), wasDeleted(false)
{
moveToThread(QCoreApplicationPrivate::mainThread());
+ connect(QCoreApplication::instance(), SIGNAL(destroyed()), SLOT(waitForThreadPoolDone()), Qt::DirectConnection);
threadPool.setMaxThreadCount(5); // do 5 DNS lookups in parallel
}
diff --git a/src/network/kernel/qhostinfo_p.h b/src/network/kernel/qhostinfo_p.h
index 2b26b07..4fc74e9 100644
--- a/src/network/kernel/qhostinfo_p.h
+++ b/src/network/kernel/qhostinfo_p.h
@@ -184,6 +184,9 @@ protected:
QMutex mutex;
bool wasDeleted;
+
+private slots:
+ void waitForThreadPoolDone() { threadPool.waitForDone(); }
};
#endif
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