Bug 17435

Summary:

[CAIRO] LiveJournal content not rendered with Cairo 1.5.x

Product:

WebKit

Reporter:

Alp Toker <alp>

Component:

New Bugs

Assignee:

Nobody <webkit-unassigned>

Status:

RESOLVED FIXED

Severity:

Normal

CC:

zuh

Priority:

Keywords:

Cairo, Gtk

Version:

528+ (Nightly build)

Hardware:

All

OS:

All

Attachments:

Description	Flags
Screenshot of artifact with r30404 (TOT)	none

Alp Toker

Reported 2008-02-19 10:10:17 PST

URL: http://hughsient.livejournal.com/51661.html Content fails to render partially with Cairo 1.5.x (tested with 1.5.8), but is known to work with 1.4.14. It could be a bug in new Cairo versions, or it could be that 1.5.x is stricter and is now failing outright on something we were doing wrong. Screenshot of the issue attached but no reduction yet. I'll be busy the next few days, hopefully someone else can track this one down.

Attachments
Screenshot of artifact with r30404 (TOT) (27.15 KB, image/png) 2008-02-19 10:12 PST, Alp Toker	no flags	Details
View All Add attachment proposed patch, testcase, etc.

Alp Toker

Comment 1 2008-02-19 10:12:28 PST

Created attachment 19210 [details] Screenshot of artifact with r30404 (TOT)

Alp Toker

Comment 2 2008-02-19 10:15:05 PST

I did an audit of GraphicsContextCairo and ensured that the GraphicsContext (but not necessarily Cairo) save/restore balance is always 0 by time of destruction, so that makes the most obvious save/restore balance theory less likely. I also checked that GraphicsContextCairo's drawImage and paintBuffer don't set an error state. So that's ruled out too.

Alp Toker

Comment 3 2008-08-26 06:20:15 PDT

Don't think this is an issue any more (graphics code has seen lots of fixes and it all works fine with cairo 1.6).

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