On May 16, 2016 1:53 AM, "Kenneth Graunke" <kenn...@whitecape.org> wrote: > > On Monday, May 16, 2016 6:32:11 AM PDT Dave Airlie wrote: > > So I said this on irc over the weekend and it seemed like we had some > > consensus on holding off 12.0 until we could announce 4.5 on some > > hardware. This assumes the FP64 stuff is going in at least. > > > > So I decided to roll out the proposal here, which is that we finish > > GL4.5 features off for at least Skylake I think. > > Personally, I think it makes the most sense to proceed with the > time-based release as planned. We've already packed a ton of great > things into it...i965 will jump from 3.3 to 4.2, and the other drivers > have made significant strides as well. I'd like to have an i965 GL 4.x > release sooner rather than later.
The three things I would absolutely like to land in 12.0 are: attrib64 so we can get 4.2, Curro's spilling *compiler* fixes (we can land those later and back-port if needed), and a set of format cleanups in the Vulkan driver I plan to send today. Beyond that, I agree that landing SIMD32 would be really nice and worth delaying by a week but no more. Getting actual 4.5 it looks like will take longer to do properly. > I might be inclined to push it back a week or so if that would help us > land SIMD32 (only for compute, and only when required). Then i965/Gen8+ > could enable ARB_compute_shader and claim 4.3. Supposedly Curro has most > of that code written, and Jason's offered to review it as soon as possible. > A lot of applications seem to rely on GL 4.3 and compute shaders. > > I'm all for rushing to GL 4.5, but why not do it in master after the > branch point? We can always pull in the next release if we want, rather > than pushing this one out. Looking ahead...we've got a bunch going on: > > - Finishing GL 4.5 > - Finishing ES 3.2 > - Landing Tim's shader cache > - More performance work > - Porting features to more platforms (i.e. fp64 on Haswell/Ivybridge) > > I think we could knock out a bunch of that out in another 3 months, and > it'd make for a pretty great 12.1 release. I also think that varying > packing is going to continue to bite us, and feel like we're going to > have to rewrite that in order to have a good quality 4.4 > implementation... > > That's just my current thinking, anyway. I'm not sure what's best. > > --Ken > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev >
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