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nak/nir: Interpolate gl_PointCoord

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/24998>
This commit is contained in:
Faith Ekstrand
2023-09-21 22:17:48 -05:00
committed by Marge Bot
parent 062735c1cc
commit 0e393f0d58
1 changed files with 9 additions and 2 deletions
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src/nouveau/compiler/nak_nir.c
+9 -2
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@@ -361,6 +361,7 @@ lower_fs_input_intrin(nir_builder *b, nir_intrinsic_instr *intrin, void *data)
}
case nir_intrinsic_load_frag_coord:
case nir_intrinsic_load_point_coord:
case nir_intrinsic_load_sample_pos: {
b->cursor = nir_before_instr(&intrin->instr);
@@ -372,7 +373,12 @@ lower_fs_input_intrin(nir_builder *b, nir_intrinsic_instr *intrin, void *data)
bary = nir_load_barycentric_pixel(b, 32,
.interp_mode = INTERP_MODE_SMOOTH);
}
const uint32_t addr = nak_sysval_attr_addr(SYSTEM_VALUE_FRAG_COORD);
const uint32_t addr =
intrin->intrinsic == nir_intrinsic_load_point_coord ?
nak_sysval_attr_addr(SYSTEM_VALUE_POINT_COORD) :
nak_sysval_attr_addr(SYSTEM_VALUE_FRAG_COORD);
nir_def *coord =
nir_load_interpolated_input(b, intrin->def.num_components, 32,
bary, nir_imm_int(b, 0),
@@ -386,6 +392,8 @@ lower_fs_input_intrin(nir_builder *b, nir_intrinsic_instr *intrin, void *data)
case nir_intrinsic_load_frag_coord:
coord = nir_vector_insert_imm(b, coord, w, 3);
break;
case nir_intrinsic_load_point_coord:
break;
case nir_intrinsic_load_sample_pos:
coord = nir_ffract(b, coord);
break;
@@ -505,7 +513,6 @@ nak_nir_lower_system_value_instr(nir_builder *b, nir_instr *instr, void *data)
}
case nir_intrinsic_load_front_face:
case nir_intrinsic_load_point_coord:
case nir_intrinsic_load_tess_coord:
case nir_intrinsic_load_instance_id:
case nir_intrinsic_load_vertex_id: {