Daniel Stone <daniel@xxxxxxxxxxxxx> writes: > Hi Eric, > > On 8 June 2017 at 01:13, Eric Anholt <eric@xxxxxxxxxx> wrote: >> This allows mesa to set the tiling format for a BO and have that >> tiling format be respected by mesa on the other side of an >> import/export (and by vc4 scanout in the kernel), without defining a >> protocol to pass the tiling through userspace. > > I posted a DRI3 v1.1 patch series which can advertise and also transit > modifiers directly under X11, and have also typed up the support for > Wayland which is working just fine with Weston from git. If you > implement DRIimage v15 to advertise and import modifiers, then you can > transit them for free without a magic-back-channel ioctl. Would that > be enough to convince you to drop this series? Not really -- this patch is pretty small, and doesn't require updating the entire world. I've been delaying writing this patch since, what, XDC last year, waiting for the modifiers pipeline to materialize, and I'm not convinced that this One Last Patchset is going to land soon enough.
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