diff options
| author | Samuel Pitoiset <[email protected]> | 2020-01-24 11:36:37 +0100 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-01-29 09:49:50 +0000 |
| commit | 9021b45b35ab70dd3cf2a9be45cb1f6e63d34158 (patch) | |
| tree | 75046ea1aa3bc5a0aa9249cb33f3d98b63e5bb57 /src/compiler | |
| parent | df8dd12e5b380ae22991ccd8cc163fe6dc751b70 (diff) | |
nir: add nir_intrinsic_load_barycentric_model
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/3578>
Diffstat (limited to 'src/compiler')
| -rw-r--r-- | src/compiler/nir/nir_builder.h | 3 | ||||
| -rw-r--r-- | src/compiler/nir/nir_intrinsics.py | 22 |
2 files changed, 14 insertions, 11 deletions
diff --git a/src/compiler/nir/nir_builder.h b/src/compiler/nir/nir_builder.h index fb90fc2cdca..eabc6a59cfa 100644 --- a/src/compiler/nir/nir_builder.h +++ b/src/compiler/nir/nir_builder.h @@ -1250,8 +1250,9 @@ static inline nir_ssa_def * nir_load_barycentric(nir_builder *build, nir_intrinsic_op op, unsigned interp_mode) { + unsigned num_components = op == nir_intrinsic_load_barycentric_model ? 3 : 2; nir_intrinsic_instr *bary = nir_intrinsic_instr_create(build->shader, op); - nir_ssa_dest_init(&bary->instr, &bary->dest, 2, 32, NULL); + nir_ssa_dest_init(&bary->instr, &bary->dest, num_components, 32, NULL); nir_intrinsic_set_interp_mode(bary, interp_mode); nir_builder_instr_insert(build, &bary->instr); return &bary->dest.ssa; diff --git a/src/compiler/nir/nir_intrinsics.py b/src/compiler/nir/nir_intrinsics.py index 3768016a787..9269ac99a2d 100644 --- a/src/compiler/nir/nir_intrinsics.py +++ b/src/compiler/nir/nir_intrinsics.py @@ -646,9 +646,10 @@ system_value("user_data_amd", 4) # Barycentric coordinate intrinsics. # # These set up the barycentric coordinates for a particular interpolation. -# The first three are for the simple cases: pixel, centroid, or per-sample -# (at gl_SampleID). The next two handle interpolating at a specified -# sample location, or interpolating with a vec2 offset, +# The first four are for the simple cases: pixel, centroid, per-sample +# (at gl_SampleID), or pull model (1/W, 1/I, 1/J) at the pixel center. The next +# three two handle interpolating at a specified sample location, or +# interpolating with a vec2 offset, # # The interp_mode index should be either the INTERP_MODE_SMOOTH or # INTERP_MODE_NOPERSPECTIVE enum values. @@ -656,18 +657,19 @@ system_value("user_data_amd", 4) # The vec2 value produced by these intrinsics is intended for use as the # barycoord source of a load_interpolated_input intrinsic. -def barycentric(name, src_comp=[]): - intrinsic("load_barycentric_" + name, src_comp=src_comp, dest_comp=2, +def barycentric(name, dst_comp, src_comp=[]): + intrinsic("load_barycentric_" + name, src_comp=src_comp, dest_comp=dst_comp, indices=[INTERP_MODE], flags=[CAN_ELIMINATE, CAN_REORDER]) # no sources. -barycentric("pixel") -barycentric("centroid") -barycentric("sample") +barycentric("pixel", 2) +barycentric("centroid", 2) +barycentric("sample", 2) +barycentric("model", 3) # src[] = { sample_id }. -barycentric("at_sample", [1]) +barycentric("at_sample", 2, [1]) # src[] = { offset.xy }. -barycentric("at_offset", [2]) +barycentric("at_offset", 2, [2]) # Load sample position: # |