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

[Alexandre Demers]

Good to have your input. I'll work on it.

Marek Olšák <maraeo at gmail.com> wrote:

>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
>>>
>>>
>>
>>
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