diff options
| author | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-07-04 10:34:02 +0200 |
|---|---|---|
| committer | Nicolai Hähnle <nicolai.haehnle@amd.com> | 2017-07-31 14:55:28 +0200 |
| commit | f1da97ef7a8408155d2627ef55092c2aa78c81ac (patch) | |
| tree | ceeadbdee17975eac7c6f5317f06bcf15a9bd81e | |
| parent | 5011923e09ec835dbd275a5137fde532ec600368 (diff) | |
nir: add load_frag_coord system value intrinsic
Some drivers prefer to treat gl_FragCoord as a system value rather than
a fragment shader input, see Const.GLSLFragCoordIsSysVal.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
| -rw-r--r-- | src/compiler/nir/nir.c | 4 | ||||
| -rw-r--r-- | src/compiler/nir/nir_gather_info.c | 1 | ||||
| -rw-r--r-- | src/compiler/nir/nir_intrinsics.h | 1 |
3 files changed, 6 insertions, 0 deletions
diff --git a/src/compiler/nir/nir.c b/src/compiler/nir/nir.c index b33f56d3d3..841b7f427a 100644 --- a/src/compiler/nir/nir.c +++ b/src/compiler/nir/nir.c @@ -1891,6 +1891,8 @@ nir_intrinsic_from_system_value(gl_system_value val) return nir_intrinsic_load_base_vertex; case SYSTEM_VALUE_INVOCATION_ID: return nir_intrinsic_load_invocation_id; + case SYSTEM_VALUE_FRAG_COORD: + return nir_intrinsic_load_frag_coord; case SYSTEM_VALUE_FRONT_FACE: return nir_intrinsic_load_front_face; case SYSTEM_VALUE_SAMPLE_ID: @@ -1958,6 +1960,8 @@ nir_system_value_from_intrinsic(nir_intrinsic_op intrin) return SYSTEM_VALUE_BASE_VERTEX; case nir_intrinsic_load_invocation_id: return SYSTEM_VALUE_INVOCATION_ID; + case nir_intrinsic_load_frag_coord: + return SYSTEM_VALUE_FRAG_COORD; case nir_intrinsic_load_front_face: return SYSTEM_VALUE_FRONT_FACE; case nir_intrinsic_load_sample_id: diff --git a/src/compiler/nir/nir_gather_info.c b/src/compiler/nir/nir_gather_info.c index 24ac74ee79..ac87bec46c 100644 --- a/src/compiler/nir/nir_gather_info.c +++ b/src/compiler/nir/nir_gather_info.c @@ -227,6 +227,7 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, nir_shader *shader) } case nir_intrinsic_load_draw_id: + case nir_intrinsic_load_frag_coord: case nir_intrinsic_load_front_face: case nir_intrinsic_load_vertex_id: case nir_intrinsic_load_vertex_id_zero_base: diff --git a/src/compiler/nir/nir_intrinsics.h b/src/compiler/nir/nir_intrinsics.h index 96ecfbc338..ea51525056 100644 --- a/src/compiler/nir/nir_intrinsics.h +++ b/src/compiler/nir/nir_intrinsics.h @@ -322,6 +322,7 @@ INTRINSIC(shared_atomic_comp_swap, 3, ARR(1, 1, 1), true, 1, 0, 1, BASE, xx, xx, idx0, idx1, idx2, \ NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER) +SYSTEM_VALUE(frag_coord, 4, 0, xx, xx, xx) SYSTEM_VALUE(front_face, 1, 0, xx, xx, xx) SYSTEM_VALUE(vertex_id, 1, 0, xx, xx, xx) SYSTEM_VALUE(vertex_id_zero_base, 1, 0, xx, xx, xx) |