Hi, On Wednesday, March 25, 2015, Dave Airlie <airlied at gmail.com> wrote:
> On 25 March 2015 at 08:50, Daniel Stone <daniel at fooishbar.org > <javascript:;>> wrote: > > I'm not going to lie, I was really hoping the 5th (?) GPU option for > > Qemu would support pageflipping. Daniel's comment about conversion to > > atomic is relevant, but: do you have a mechanism which allows you to > > post updates (e.g. 'start displaying this buffer now please') that > > allows you to get events back when they have actually been displayed? > > Page flip is implemented in a later patch, > > > https://www.kraxel.org/cgit/linux/commit/?h=virtio-gpu&id=1e167e8e964f8e08100d315dd354cc0a4b090841 > > Since its a long way from an actual display, finding out when > something is actually displayed is hard, > but when we've posted it to the frontbuffer should be fine. > Oh nice. 100% exact timings aren't critical; it's more just having something to gate to 60fps that we can actually drive Weston's repaint loop off, as that's (not unreasonably) driven by pageflip events. Cheers, Daniel -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20150325/6fed9798/attachment.html>