Bug 249563

Summary:	Use double precision for CalcExpressionBlendLength
Product:	WebKit	Reporter:	Matt Woodrow <mattwoodrow>
Component:	Layout and Rendering	Assignee:	Matt Woodrow <mattwoodrow>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bfulgham, graouts, simon.fraser, webkit-bug-importer, zalan
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Matt Woodrow

Reported 2022-12-18 14:55:42 PST

The incoming type from BlendingContext is a double, so we should keep it as double to improve the precision of the evaluated blend function. This fixes the perspective-origin-interpolation.html WPT test on arm64.

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Add attachment proposed patch, testcase, etc.

Matt Woodrow

Comment 1 2022-12-18 14:56:18 PST

<rdar://103496037>

Matt Woodrow

Comment 2 2022-12-18 14:57:23 PST

Pull request: https://github.com/WebKit/WebKit/pull/7833

EWS

Comment 3 2022-12-18 22:38:52 PST

Committed 258072@main (53bb745eddb3): <https://commits.webkit.org/258072@main> Reviewed commits have been landed. Closing PR #7833 and removing active labels.

Antoine Quint

Comment 4 2022-12-18 23:08:32 PST

*** Bug 235810 has been marked as a duplicate of this bug. ***

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