eirikbakke commented on PR #8589: URL: https://github.com/apache/netbeans/pull/8589#issuecomment-3178996631
I had a chat with the developer who authored https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3567 . Excerpt: My question: > Java apps such as NetBeans can support a 2x HiDPI scaling quite easily on Linux, due to underlying support in the OpenJDK platform (which currently runs through Xwayland, as I understand it). Fractional scaling factors, however, are not supported directly by OpenJDK. However, fractional scaling could be supported quite easily if there was a way to tell Mutter to scale a given application's windows down by a factor of less than one. Then OpenJDK could render its windows at 2x scaling and mutter could scale the resulting bitmap down by e.g. a factor of 0.75 to get a final, sharp scaling factor of 2*0.75 = 150%. This is how fractional scaling works on MacOS, and it works very well there. This technique also works with multiple monitors, which can have different compositor-applied scale-down factors. > > Is there a way to achieve something like this with Mutter and Xwayland? E.g. allow an individual application to declare that it will draw itself at 2x scaling, and then have mutter scale by e.g. 0.75 instead of 1.5 whenever the window is on a monitor that has a desired scale factor of 150%? Jonas Dreßler replied to me: > Happy to let you know that in fact the MacOS way is exactly how fractional scaling works on Mutter as well :) However, I was not yet able to make this work. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@netbeans.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: notifications-unsubscr...@netbeans.apache.org For additional commands, e-mail: notifications-h...@netbeans.apache.org For further information about the NetBeans mailing lists, visit: https://cwiki.apache.org/confluence/display/NETBEANS/Mailing+lists
