[webkit-changes] [WebKit/WebKit] 042114: [LBSE] Fix filter scaling

[Rob Buis]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 042114aac2d953c3d7a27996185194050ae11ca9
      
https://github.com/WebKit/WebKit/commit/042114aac2d953c3d7a27996185194050ae11ca9
  Author: Rob Buis <rb...@igalia.com>
  Date:   2026-05-28 (Thu, 28 May 2026)

  Changed paths:
    M LayoutTests/platform/mac-tahoe-wk2-lbse-text/TestExpectations
    M Source/WebCore/SaferCPPExpectations/UncheckedCallArgsCheckerExpectations
    M Source/WebCore/SaferCPPExpectations/UncheckedLocalVarsCheckerExpectations
    M Source/WebCore/WebCore.xcodeproj/project.pbxproj
    M Source/WebCore/rendering/RenderLayerFilters.cpp
    M Source/WebCore/rendering/svg/RenderSVGInlineText.cpp
    M Source/WebCore/rendering/svg/SVGBoundingBoxComputation.cpp
    R Source/WebCore/rendering/svg/SVGLayerTransformComputation.h
    A Source/WebCore/rendering/svg/SVGTransformComputation.h
    M Source/WebCore/svg/SVGClipPathElement.cpp
    M Source/WebCore/svg/SVGGraphicsElement.cpp
    M Source/WebCore/svg/SVGMaskElement.cpp

  Log Message:
  -----------
  [LBSE] Fix filter scaling
https://bugs.webkit.org/show_bug.cgi?id=312475

Reviewed by Nikolas Zimmermann.

Filter was not scaled according to ancestor transformations, this
PR fixes that by introducing calculateAccumulatedSVGAncestorTransformScale.

* LayoutTests/platform/mac-tahoe-wk2-lbse-text/TestExpectations:
* Source/WebCore/SaferCPPExpectations/UncheckedCallArgsCheckerExpectations:
* Source/WebCore/SaferCPPExpectations/UncheckedLocalVarsCheckerExpectations:
* Source/WebCore/WebCore.xcodeproj/project.pbxproj:
* Source/WebCore/rendering/RenderLayerFilters.cpp:
(WebCore::RenderLayerFilters::beginFilterEffect):
* Source/WebCore/rendering/svg/RenderSVGInlineText.cpp:
(WebCore::RenderSVGInlineText::computeScalingFactorForRenderer):
* Source/WebCore/rendering/svg/SVGBoundingBoxComputation.cpp:
(WebCore::SVGBoundingBoxComputation::handleRootOrContainer const):
* Source/WebCore/rendering/svg/SVGTransformComputation.h: Renamed from 
Source/WebCore/rendering/svg/SVGLayerTransformComputation.h.
(WebCore::SVGTransformComputation::SVGTransformComputation):
(WebCore::SVGTransformComputation::calculateAccumulatedSVGAncestorTransformScale):
* Source/WebCore/svg/SVGClipPathElement.cpp:
(WebCore::SVGClipPathElement::calculateClipContentRepaintRect):
* Source/WebCore/svg/SVGGraphicsElement.cpp:
(WebCore::SVGGraphicsElement::computeCTM):
* Source/WebCore/svg/SVGMaskElement.cpp:
(WebCore::SVGMaskElement::calculateMaskContentRepaintRect):

Canonical link: https://commits.webkit.org/314068@main



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