Code is taken from a combination of radv (for the more basic functions,
to avoid gallivm dependencies) and radeonsi (for the new and improved
derivative calculations).
v2: add 0.5 offset to tex coords only after derivative calculation
v3:
- really only touch the first three coordinates
- rebase on the removal of the 1.5 --> 0.5 offset change
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl> (v2)
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This squashes all the radv development up until now into
one for merging.
History can be found:
https://github.com/airlied/mesa/tree/semi-interesting
This requires llvm 3.9 and is in no way considered
a conformant vulkan implementation. It can run a number
of vulkan applications, and supports all GPUs using
the amdgpu kernel driver.
Thanks to Intel for providing anv and spirv->nir,
and Emil Velikov for reviewing build integration.
Parts of this are:
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Authors: Bas Nieuwenhuizen and Dave Airlie
Signed-off-by: Dave Airlie <airlied@redhat.com>
