Bug 266260 – Inline SVGTextLayoutAttributes::emptyValue

• Component: SVG
• Status: RESOLVED FIXED

[Ahmad Saleem]

Hi Team,

While looking into Blink's commit, I came across another potential merge:

Blink Commit: https://src.chromium.org/viewvc/blink?view=revision&revision=195555

"This function just returns a simple float - inlining it allows the
compiler to generate more efficient code (and smaller - ~.5k) code
since the relatively high overhead call can be eliminated.
Take the opportunity to change the "empty value" into NaN (instead of
"max() - 1"), with corresponding semantic changes required by that."

Just wanted to raise to get input, if it is worthwhile change to merge.

Thanks!

[Radar WebKit Bug Importer]

<rdar://problem/119839011>

[Ahmad Saleem]

NOTE - It leads to regress following test case:

https://web.archive.org/web/20150712020900/http://output.jsbin.com/imajow/1/quiet

^ It start showing nothing. Tested on local build.

It is via following changes only:

Source/WebCore/rendering/svg/SVGTextLayoutAttributes.cpp <-
Source/WebCore/rendering/svg/SVGTextLayoutAttributes.h <-

PR Attempt: https://github.com/WebKit/WebKit/pull/22031

[Ahmad Saleem]

It needs some tinkering here in rotation code:

https://searchfox.org/wubkat/rev/af9971e796398c1d012ef5df9a09ed580d19bd17/Source/WebCore/rendering/svg/SVGTextLayoutAttributesBuilder.cpp#195

To make the below failing test fixed.

NOTE - I closed my PR because again my Git setup screwed-up rebase.

[Ahmad Saleem]

SVN link is gone, so this is link - https://github.com/chromium/chromium/commit/d501a4d0cecb30041be93e549c909f8b3517a3fc

[Ahmad Saleem]

Pull request: https://github.com/WebKit/WebKit/pull/33674

[EWS]

Committed 283684@main (5f8c05ccb28f): <https://commits.webkit.org/283684@main>

Reviewed commits have been landed. Closing PR #33674 and removing active labels.