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agx: Handle centroid and sample interpolation

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Works great now that all the infrastructure is wired up.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23480>
This commit is contained in:
Alyssa Rosenzweig
2023-05-25 13:22:51 -04:00
committed by Marge Bot
parent b7f130fbbc
commit 1dd513727d
1 changed files with 20 additions and 4 deletions
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src/asahi/compiler/agx_compile.c
+20 -4
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@@ -365,6 +365,25 @@ agx_emit_load_vary_flat(agx_builder *b, agx_index dest,
agx_emit_collect_to(b, dest, components, dests);
}
static enum agx_interpolation
agx_interp_for_bary(nir_intrinsic_instr *bary, agx_index *sample_index)
{
switch (bary->intrinsic) {
case nir_intrinsic_load_barycentric_pixel:
return AGX_INTERPOLATION_CENTER;
case nir_intrinsic_load_barycentric_centroid:
return AGX_INTERPOLATION_CENTROID;
case nir_intrinsic_load_barycentric_at_sample:
*sample_index = agx_src_index(&bary->src[0]);
return AGX_INTERPOLATION_SAMPLE;
default:
unreachable("should have been lowered");
}
}
static void
agx_emit_load_vary(agx_builder *b, agx_index dest, nir_intrinsic_instr *instr)
{
@@ -373,11 +392,8 @@ agx_emit_load_vary(agx_builder *b, agx_index dest, nir_intrinsic_instr *instr)
assert(components >= 1 && components <= 4);
/* TODO: Interpolation modes */
assert(bary != NULL);
assert(bary->intrinsic == nir_intrinsic_load_barycentric_pixel);
enum agx_interpolation interp = AGX_INTERPOLATION_CENTER;
agx_index sample_index = agx_zero();
enum agx_interpolation interp = agx_interp_for_bary(bary, &sample_index);
bool perspective =
nir_intrinsic_interp_mode(bary) != INTERP_MODE_NOPERSPECTIVE;