Bug 245813

Summary: [WinCairo] REGRESSION(WebKitRequirements v2022.09.06): image rendering issue
Product: WebKit Reporter: Fujii Hironori <fujii.hironori>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Status: RESOLVED CONFIGURATION CHANGED    
Severity: Normal CC: don.olmstead
Priority: P2    
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
URL: https://ascii.jp/
Attachments:
Description Flags
test case
none
test case 2 none

Fujii Hironori
Reported 2022-09-28 20:49:11 PDT
Created attachment 462696 [details] test case REGRESSION: wrong negative background-position 254165@main OK 254443@main NG
Attachments
test case (1.45 KB, text/html)
2022-09-28 20:49 PDT, Fujii Hironori 		no flags
Details
test case 2 (230 bytes, text/html)
2022-10-11 18:03 PDT, Fujii Hironori 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Fujii Hironori
Comment 1 2022-09-29 12:57:28 PDT
I tested only with WinCairo MiniBrowser. I can't reproduce this bug with Mac MiniBrowser. Cairo port bug? Preferences?
Fujii Hironori
Comment 2 2022-09-29 13:02:58 PDT
Not reproducible with GTK MiniBrowser. WinCairo specific bug?
Fujii Hironori
Comment 3 2022-09-29 20:52:32 PDT
Downgrading cairo 1.17.6 to 1.17.4 fixed the problem. It seems like cairo 1.17.6 regression.
Fujii Hironori
Comment 4 2022-09-30 00:44:10 PDT
If I build cairo-1.17.6.tar.bz2 with meson, it has no problem. It seems like a CMake script problem. https://github.com/WebKitForWindows/WebKitRequirements/blob/main/ports/cairo/patches/0001-Add-CMake-build.patch
Fujii Hironori
Comment 5 2022-10-02 14:05:46 PDT
Playwright issue: https://github.com/microsoft/playwright/issues/17766
Fujii Hironori
Comment 6 2022-10-02 20:24:07 PDT
Removing CAIRO_NO_MUTEX=1 fixes the bug.
Fujii Hironori
Comment 7 2022-10-11 18:03:37 PDT
Created attachment 462928 [details] test case 2
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