diff options
| author | Kenneth Graunke <[email protected]> | 2015-10-08 23:53:47 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2015-10-28 21:14:53 -0700 |
| commit | 9c8208f2c15445b00ba170ff96a9ea4ce6c083e1 (patch) | |
| tree | 4f68369b4fcff13a46f65e950f1f160e0a1a924a | |
| parent | bf05af3f0e8769f417bbd995470dc1b8083a0df9 (diff) | |
nir: Add intrinsics for tessellation shader system values.
nir_intrinsic_load_patch_vertices_in corresponds to gl_PatchVerticesIn,
a special input in both the TCS and TES stages.
nir_intrinsic_load_tess_coord corresponds to gl_TessCoord, a special
tessellation evaluation shader input.
nir_intrinsic_load_tess_level_outer/inner correspond to the
gl_TessLevelOuter[] and gl_TessLevelInner[] evaluation shader inputs,
which we treat as system values because they're stored specially.
(These intrinsics are only for the TES - the TCS uses output variables.)
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Iago Toral Quiroga <[email protected]>
| -rw-r--r-- | src/glsl/nir/nir.c | 17 | ||||
| -rw-r--r-- | src/glsl/nir/nir_intrinsics.h | 4 |
2 files changed, 14 insertions, 7 deletions
diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c index 793bdafb54b..5f03095d673 100644 --- a/src/glsl/nir/nir.c +++ b/src/glsl/nir/nir.c @@ -1557,12 +1557,14 @@ nir_intrinsic_from_system_value(gl_system_value val) return nir_intrinsic_load_num_work_groups; case SYSTEM_VALUE_PRIMITIVE_ID: return nir_intrinsic_load_primitive_id; - /* FINISHME: Add tessellation intrinsics. case SYSTEM_VALUE_TESS_COORD: - case SYSTEM_VALUE_VERTICES_IN: + return nir_intrinsic_load_tess_coord; case SYSTEM_VALUE_TESS_LEVEL_OUTER: + return nir_intrinsic_load_tess_level_outer; case SYSTEM_VALUE_TESS_LEVEL_INNER: - */ + return nir_intrinsic_load_tess_level_inner; + case SYSTEM_VALUE_VERTICES_IN: + return nir_intrinsic_load_patch_vertices_in; default: unreachable("system value does not directly correspond to intrinsic"); } @@ -1598,13 +1600,14 @@ nir_system_value_from_intrinsic(nir_intrinsic_op intrin) return SYSTEM_VALUE_WORK_GROUP_ID; case nir_intrinsic_load_primitive_id: return SYSTEM_VALUE_PRIMITIVE_ID; - /* FINISHME: Add tessellation intrinsics. + case nir_intrinsic_load_tess_coord: return SYSTEM_VALUE_TESS_COORD; - return SYSTEM_VALUE_VERTICES_IN; - return SYSTEM_VALUE_PRIMITIVE_ID; + case nir_intrinsic_load_tess_level_outer: return SYSTEM_VALUE_TESS_LEVEL_OUTER; + case nir_intrinsic_load_tess_level_inner: return SYSTEM_VALUE_TESS_LEVEL_INNER; - */ + case nir_intrinsic_load_patch_vertices_in: + return SYSTEM_VALUE_VERTICES_IN; default: unreachable("intrinsic doesn't produce a system value"); } diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h index 49bf3b22aed..c1fb1bad4bc 100644 --- a/src/glsl/nir/nir_intrinsics.h +++ b/src/glsl/nir/nir_intrinsics.h @@ -198,6 +198,10 @@ SYSTEM_VALUE(sample_pos, 2, 0) SYSTEM_VALUE(sample_mask_in, 1, 0) SYSTEM_VALUE(primitive_id, 1, 0) SYSTEM_VALUE(invocation_id, 1, 0) +SYSTEM_VALUE(tess_coord, 3, 0) +SYSTEM_VALUE(tess_level_outer, 4, 0) +SYSTEM_VALUE(tess_level_inner, 2, 0) +SYSTEM_VALUE(patch_vertices_in, 1, 0) SYSTEM_VALUE(local_invocation_id, 3, 0) SYSTEM_VALUE(work_group_id, 3, 0) SYSTEM_VALUE(user_clip_plane, 4, 1) /* const_index[0] is user_clip_plane[idx] */ |