I may be confused, too! I haven’t kept close track of the various issues and PRs.
My comment relates to a perhaps old idea of using a graphics rendering hint to suppress painting the window background. VAqua knows nothing about volatile buffering, nor do I. :-) > On Apr 7, 2023, at 3:29 PM, Jeremy <d...@openjdk.org> wrote: > > On Mon, 27 Mar 2023 21:45:08 GMT, Jeremy <d...@openjdk.org > <mailto:d...@openjdk.org>> wrote: > >> The original write-up contains two complaints: >> 1. The window is opaque, so pixels that should be transparent are black. >> 2. The window is the wrong resolution. On a 200% resolution monitor it >> renders as if it were 100% (so it looks pixelated). >> >> I recommend splitting this up into separate tickets. >> >> This PR addresses the first (probably most offensive) issue: the window is >> now transparent. >> >> I experimented with a change that resolves the second issue (image >> resolution) here: >> https://github.com/openjdk/jdk/commit/90735b7c01c66268776998c1b6aedc3250427002 >> >> ... that works, but IMO that looks riskier and should be part of a separate >> discussion. >> >> I only have a Mac configured right now to test against, so I've confirmed >> the MTLGraphicsConfig and CGLGraphicsConfig changes. The other >> GraphicsConfig changes are identical, but I haven't confirmed that this new >> test passes in those environments. (I did confirm that those GraphicsConfig >> files appear to support getColorModel(Transparency.TRANSLUCENT), so I'm >> optimistic they'll be OK. > > Alan, I may be confused. Does VAqua rely on turning off volatile buffering? > > Or your comment might (?) make more sense if it's for my other PR ([for > 8303950](https://github.com/openjdk/jdk/pull/12993)) that relates to this > method: > > https://github.com/openjdk/jdk/blob/a8871f5d26e5cb42c031c7b736ec30b1b147a2bc/src/java.desktop/share/classes/java/awt/Window.java#L3946-L3960 > > (Also: thanks for mentioning VAqua! I'll check it out. I was a big fan of > Werner's Quaqua work a decade ago at another job.) > > ------------- > > PR Comment: https://git.openjdk.org/jdk/pull/13196#issuecomment-1500695845
