RFR: 8358058: sun/java2d/OpenGL/DrawImageBg.java Test fails intermittently

[Phil Race]

On Mon, 22 Sep 2025 19:46:37 GMT, Sergey Bylokhov <serb at openjdk.org> wrote:

> > > why on WIndows/Linux we set "-Dsun.java2d.uiScale=1" option and on mac we do not?
> > 
> > 
> > I'd have used uiScale=1 everywhere, but I actually observed a few rounding errors on retina if I used uiScale = 1 . Letting uiScale be whatever is the default has so far worked on all Mac cases.
> 
> If it works mostly fine on macos then why it is needed on win/lin?

Because fractional scaling on Windows causes problems too. And Linux we don't scale unless it is 2X and I don't have anything to test that so playing it safe.

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PR Comment: https://git.openjdk.org/jdk/pull/27399#issuecomment-3324987531