On Sun, 10 Nov 2024 at 08:10, Akihiko Odaki <akihiko.od...@daynix.com> wrote: > > On 2024/11/10 16:08, Phil Dennis-Jordan wrote: > > > > > > On Sun 10. Nov 2024 at 08:01, Akihiko Odaki <akihiko.od...@daynix.com > > <mailto:akihiko.od...@daynix.com>> wrote: > > > > On 2024/11/08 23:46, Phil Dennis-Jordan wrote: > > > macOS's Cocoa event handling must be done on the initial (main) > > thread > > > of the process. Furthermore, if library or application code uses > > > libdispatch, the main dispatch queue must be handling events on > > the main > > > thread as well. > > > > > > So far, this has affected Qemu in both the Cocoa and SDL UIs, > > although > > > in different ways: the Cocoa UI replaces the default qemu_main > > function > > > with one that spins Qemu's internal main event loop off onto a > > > background thread. SDL (which uses Cocoa internally) on the other > > hand > > > uses a polling approach within Qemu's main event loop. Events are > > > polled during the SDL UI's dpy_refresh callback, which happens to run > > > on the main thread by default. > > > > GTK should also do the same as SDL and requires treatment; I forgot to > > note that in previous reviews. > > > > > > Although it‘s possible to build Qemu with GTK support enabled on macOS, > > that UI doesn’t actually work on macOS at all, and apparently hasn’t > > been supported since 2018, see: > > https://stackoverflow.com/a/51474795 <https://stackoverflow.com/a/51474795> > > > > I don’t think there’s any point making adjustments to the GTK code by > > guessing what might be needed if someone did fix that to work with macOS > > at some point. > > But there is a GitLab issue saying it "sometimes" crashes, implying it > works otherwise: > https://gitlab.com/qemu-project/qemu/-/issues/2539
I spent some time trying to get the GTK GUI working locally on macOS with no success (with or without the pvg/vmapple patch set) until I found various info online suggesting it was broken. But I guess I can add a qemu_main = NULL; line to gtk_display_init(). This will retain the existing behaviour both on other platforms (where qemu_main is NULL anyway) and if anyone does manage to use it on macOS.
