Re: [PATCH] qemu/ui: set swap interval explicitly when OpenGL is enabled

[Michael Tokarev]

On 11.09.2024 12:14, gert.wollny@collabora.com wrote:
> From: Gert Wollny <gert.wollny@collabora.com>
>
> Before 176e3783f2ab (ui/sdl2: OpenGL window context)
> SDL_CreateRenderer was called unconditionally setting
> the swap interval to 0. Since SDL_CreateRenderer is now no
> longer called when OpenGL is enabled, the swap interval is
> no longer set explicitly and vsync handling depends on
> the environment settings which may lead to a performance
> regression with virgl as reported in
>     https://gitlab.com/qemu-project/qemu/-/issues/2565
>
> Restore the old vsync handling by explicitly calling
> SDL_GL_SetSwapInterval if OpenGL is enabled.
>
> Fixes: 176e3783f2ab (ui/sdl2: OpenGL window context)
> Closes: https://gitlab.com/qemu-project/qemu/-/issues/2565

Is it a qemu-stable material (8.2, 9.0, 9.1) ?

Picked it up for now, please notify me if I should drop it.

Also please notify me if I should pick some other changes
for -stable.

Thanks,

/mjt