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nak: Handle flat FS inputs

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
This commit is contained in:
Faith Ekstrand 2023-09-11 19:49:47 -05:00 • committed by Marge Bot
parent ea6057deb4
commit dadc79d96f
1 changed files with 42 additions and 24 deletions
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66
src/nouveau/compiler/nak_from_nir.rs
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@ -1185,32 +1185,50 @@ impl<'a> ShaderFromNir<'a> {
self.set_dst(&intrin.def, dst);
}
nir_intrinsic_load_input | nir_intrinsic_load_per_vertex_input => {
let (vtx, offset) = match intrin.intrinsic {
nir_intrinsic_load_input => {
(Src::new_zero(), self.get_src(&srcs[0]))
}
nir_intrinsic_load_per_vertex_input => {
(self.get_src(&srcs[0]), self.get_src(&srcs[1]))
}
_ => panic!("Unhandled intrinsic"),
};
assert!(intrin.def.bit_size() == 32);
let access = AttrAccess {
addr: intrin.base().try_into().unwrap(),
comps: intrin.def.num_components(),
patch: false,
out_load: false,
flags: 0,
};
let dst = b.alloc_ssa(RegFile::GPR, access.comps);
let comps = intrin.def.num_components();
let dst = b.alloc_ssa(RegFile::GPR, comps);
b.push_op(OpALd {
dst: dst.into(),
vtx: vtx,
offset: offset,
access: access,
});
if self.nir.info.stage() == MESA_SHADER_FRAGMENT {
assert!(intrin.intrinsic == nir_intrinsic_load_input);
let addr = u16::try_from(intrin.base()).unwrap()
+ u16::try_from(srcs[0].as_uint().unwrap()).unwrap();
for c in 0..comps {
b.push_op(OpIpa {
dst: dst[usize::from(c)].into(),
addr: addr + 4 * u16::from(c),
freq: InterpFreq::Constant,
loc: InterpLoc::Default,
offset: SrcRef::Zero.into(),
});
}
} else {
let (vtx, offset) = match intrin.intrinsic {
nir_intrinsic_load_input => {
(Src::new_zero(), self.get_src(&srcs[0]))
}
nir_intrinsic_load_per_vertex_input => {
(self.get_src(&srcs[0]), self.get_src(&srcs[1]))
}
_ => panic!("Unhandled intrinsic"),
};
let access = AttrAccess {
addr: intrin.base().try_into().unwrap(),
comps: comps,
patch: false,
out_load: false,
flags: 0,
};
b.push_op(OpALd {
dst: dst.into(),
vtx: vtx,
offset: offset,
access: access,
});
}
self.set_dst(&intrin.def, dst);
}
nir_intrinsic_load_interpolated_input => {