RESOLVED FIXED 195792
REGRESSION(cairo-1.17.2) GraphicsContext::clipRoundedRect clips everything 
https://bugs.webkit.org/show_bug.cgi?id=195792
Summary REGRESSION(cairo-1.17.2) GraphicsContext::clipRoundedRect clips everything
Fujii Hironori
Reported 2019-03-14 20:40:42 PDT
Created attachment 364766 [details] repro [WinCairo] Texts are not drawn in blocks with border-radius and overflow-x:auto Testing with WinCairo port trunk@242984 WK1 and WK2 BrowerWindow. It seems that GTK port doesn't have this issue.
Attachments
repro (150 bytes, text/html)
2019-03-14 20:40 PDT, Fujii Hironori 		no flags
Details
simple cairo clipping program (5.61 KB, text/plain)
2019-03-18 00:33 PDT, Fujii Hironori 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Don Olmstead
Comment 2 2019-03-17 20:52:30 PDT
Does it work with the previous cairo?
Fujii Hironori
Comment 3 2019-03-17 21:10:57 PDT
This issue can be fixed by replacing with cairo.dll of WinCairoRequirements v2018.11.27 (Cairo 1.16.0).
Fujii Hironori
Comment 4 2019-03-17 21:13:00 PDT
GraphicsContext::clipRoundedRect doesn't work as expected.
Fujii Hironori
Comment 5 2019-03-18 00:33:22 PDT
Created attachment 365003 [details] simple cairo clipping program
Fujii Hironori
Comment 6 2019-03-18 01:10:37 PDT Comment hidden (obsolete)
Fujii Hironori
Comment 7 2019-03-18 03:24:29 PDT
I tested the repro with the latest vcpkg. cairo 1.16.0 + pixman 0.38.0 (x86-windows): OK cairo 1.17.2 + pixman 0.38.0 (x86-windows): NG
Fujii Hironori
Comment 8 2019-03-18 18:24:12 PDT
I had a mistake in comment#6. I redid the experiment on Linux. I've confirmed this issue can be reproduced on Linux with cairo-1.17.2.tar.xz.
Fujii Hironori
Comment 9 2019-03-18 18:53:20 PDT
The upstream Cairo master branch has fixed this issue. This is the commit. https://gitlab.freedesktop.org/cairo/cairo/commit/2d1a137f3d27b60538c58b25e867288c7b0b61bc
Fujii Hironori
Comment 10 2019-03-28 18:49:15 PDT
https://github.com/WebKitForWindows/WinCairoRequirements/releases/tag/v2019.03.28 > Downgrades cairo to a previous version due to instability of the developer snapshot. Fixed.
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