[Mesa-dev] [PATCH 1/7] gallium: add CONSTBUF type to tgsi_file_type

[Ilia Mirkin]

On Tue, Aug 22, 2017 at 10:51 AM, Roland Scheidegger <sroland at vmware.com> wrote:
> I am probably missing something here, but why do you need a new register
> file? Since you couldn't use LOAD with TGSI_FILE_CONSTANT before, can't
> you just allow LOAD with TGSI_FILE_CONSTANT and achieve the same thing?
> Or do you need to know how it's going to be accessed in advance?

With bindless, LOAD can take a CONST I believe [which contains the
value of the bindless id]. I think it's nice to keep those concepts
separate... having CONST sometimes mean the value and other times mean
the address is a bit weird. This way CONSTBUF[0] is the address of the
0th constbuf.

  -ilia