[Mesa-dev] State of Geometry shader instancing on radeonsi

[Marek Olšák]

I think I didn't tell you how I'd like the viewport and scissor states
to be implemented. Here it is:

1 r600_atom for all 16 viewports
1 r600_atom for all 16 scissors

Each atom should have a bitmask saying which "slots" are dirty. (same
principle as resource slots)

The "emit" functions should only set dirty viewports/scissors registers.

Marek



On Thu, Mar 26, 2015 at 10:18 PM, Alexandre Demers
<alexandre.f.demers at gmail.com> wrote:
> Update on radeonsi's GL_ARB_viewport_array: even though I don't have much
> time right now, the easy part is done. I should push my changes to my git
> tree soon. I'll let you know where it is.
>
> However, I may need some help for the last part, mostly because r600g
> doesn't help a lot on that matter. Then again, I'll let you know if needed.
>
> Alexandre Demers
>
>
> On 2015-03-04 21:45, Alexandre Demers wrote:
>>
>> Then you can count me as working on ARB_viewport_array.
>>
>> Alexandre Demers
>>
>> On 2015-02-25 14:25, Marek Olšák wrote:
>>>
>>> Nobody is working on ARB_gpu_shader5 for radeonsi.
>>>
>>> Marek
>>>
>>>
>>>
>>> On Wed, Feb 25, 2015 at 6:41 PM, Ilia Mirkin <imirkin at alum.mit.edu>
>>> wrote:
>>>>
>>>> On Wed, Feb 25, 2015 at 11:24 AM, Alexandre Demers
>>>> <alexandre.f.demers at gmail.com> wrote:
>>>>>
>>>>> Hi everyone,
>>>>>
>>>>> I'd like to know if someone is working on Geometry shader instancing
>>>>> for radeonsi or if there is already a work in progress somewhere I
>>>>> would have missed. I might be interested in giving it a try and then
>>>>> on GL_ARB_viewport_array.
>>>>
>>>> While there's no harm in working on GS instancing on its own, note
>>>> that it's only a small part of the ARB_gpu_shader5 extension, so won't
>>>> be immediately useful until the other pieces are completed (which will
>>>> mostly involve adding LLVM support for the ops in question if they're
>>>> not there yet, and then wiring them up).
>>>>
>>>> ARB_viewport_array is a much more self-contained extension. Note that
>>>> ARB_fragment_layer_viewport will automatically get enabled once you
>>>> claim multiple viewports, so make sure to make gl_ViewportIndex work
>>>> in fp as well if you decide to do it. You may have to pass it as a
>>>> varying "by hand", not sure... IIRC I had to do that in r600. There
>>>> are piglits that cover the various cases.
>>>>
>>>> [Hopefully Marek and/or some of the other AMD guys will pipe up if
>>>> they've worked on any of these things and just haven't published yet.]
>>>>
>>>>    -ilia
>>>> _______________________________________________
>>>> mesa-dev mailing list
>>>> mesa-dev at lists.freedesktop.org
>>>> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
>>
>>
>
>
> ---
> This email has been checked for viruses by Avast antivirus software.
> http://www.avast.com
>