Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: f3cac57896a33a50aae815d1c1947c6a45c9d3db
https://github.com/WebKit/WebKit/commit/f3cac57896a33a50aae815d1c1947c6a45c9d3db
Author: Simon Fraser <simon.fra...@apple.com>
Date: 2024-04-18 (Thu, 18 Apr 2024)
Changed paths:
M Source/WebCore/rendering/RenderBlock.cpp
M Source/WebCore/rendering/RenderBlock.h
M Source/WebCore/rendering/RenderBox.cpp
M Source/WebCore/rendering/RenderBox.h
M Source/WebCore/rendering/RenderBoxModelObject.h
M Source/WebCore/rendering/RenderBoxModelObjectInlines.h
M Source/WebCore/rendering/RenderTable.h
M Source/WebCore/rendering/RenderTableCell.cpp
M Source/WebCore/rendering/RenderTableCell.h
M Source/WebCore/rendering/RenderTableInlines.h
Log Message:
-----------
Optimize the computation of layout overflow
https://bugs.webkit.org/show_bug.cgi?id=272859
<rdar://problem/126651525>
Reviewed by Alan Baradlay.
Computing layout overflow would call the 4 virtual border width functions
many times, so add a single virtual border widths getter to reduce that
overhead.
Also `flippedClientBoxRect()` has non-trivial cost and would be computed each
time
for the container, so compute that once and pass it into
`addOverflowFromChild()`.
Finally check the `hasNonVisibleOverflow()` bit in a couple of places before
doing tests for various kinds of overflow.
* Source/WebCore/rendering/RenderBlock.cpp:
(WebCore::RenderBlock::addOverflowFromPositionedObjects):
(WebCore::RenderBlock::borderWidths const):
* Source/WebCore/rendering/RenderBlock.h:
* Source/WebCore/rendering/RenderBox.cpp:
(WebCore::RenderBox::addOverflowFromChild):
(WebCore::RenderBox::addLayoutOverflow):
(WebCore::RenderBox::layoutOverflowRectForPropagation const):
(WebCore::RenderBox::flippedClientBoxRect const):
* Source/WebCore/rendering/RenderBox.h:
* Source/WebCore/rendering/RenderBoxModelObject.h:
* Source/WebCore/rendering/RenderBoxModelObjectInlines.h:
(WebCore::RenderBoxModelObject::borderWidths const):
* Source/WebCore/rendering/RenderTable.h:
* Source/WebCore/rendering/RenderTableCell.cpp:
(WebCore::RenderTableCell::borderWidths const):
* Source/WebCore/rendering/RenderTableCell.h:
* Source/WebCore/rendering/RenderTableInlines.h:
(WebCore::RenderTable::borderWidths const):
Canonical link: https://commits.webkit.org/277679@main
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