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gallium/ntt: Add support for store_per_vertex_output.

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Needed by virgl and r600 to use NTT.

Reviewed-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8488>
This commit is contained in:
Eric Anholt 2021-01-13 16:18:02 -08:00
parent 97d5bc7de3
commit 37363ef663
1 changed files with 19 additions and 1 deletions
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20
src/gallium/auxiliary/nir/nir_to_tgsi.c
View file

@ -989,6 +989,18 @@ ntt_ureg_src_dimension_indirect(struct ntt_compile *c, struct ureg_src usrc,
}
}
static struct ureg_dst
ntt_ureg_dst_dimension_indirect(struct ntt_compile *c, struct ureg_dst udst,
nir_src src)
{
if (nir_src_is_const(src)) {
return ureg_dst_dimension(udst, nir_src_as_uint(src));
} else {
return ureg_dst_dimension_indirect(udst,
ntt_reladdr(c, ntt_get_src(c, src)),
0);
}
}
/* Some load operations in NIR will have a fractional offset that we need to
* swizzle down before storing to the result register.
*/
@ -1483,7 +1495,12 @@ ntt_emit_store_output(struct ntt_compile *c, nir_intrinsic_instr *instr)
invariant);
}
out = ntt_ureg_dst_indirect(c, out, instr->src[1]);
if (instr->intrinsic == nir_intrinsic_store_per_vertex_output) {
out = ntt_ureg_dst_indirect(c, out, instr->src[2]);
out = ntt_ureg_dst_dimension_indirect(c, out, instr->src[1]);
} else {
out = ntt_ureg_dst_indirect(c, out, instr->src[1]);
}
unsigned write_mask = nir_intrinsic_write_mask(instr);
@ -1564,6 +1581,7 @@ ntt_emit_intrinsic(struct ntt_compile *c, nir_intrinsic_instr *instr)
break;
case nir_intrinsic_store_output:
case nir_intrinsic_store_per_vertex_output:
ntt_emit_store_output(c, instr);
break;