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nir: Add gl_PointCoord system value

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gl_PointCoord handling needs some special bits set in lima/ppir code
generation. Treating gl_PointCoord as a system value makes it easier
to distinguish from a regular varying.

Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Andreas Baierl
2019-06-04 13:24:53 +02:00
committed by Qiang Yu
parent 24af57407c
commit f5804f1768
3 changed files with 6 additions and 0 deletions
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4
src/compiler/nir/nir.c
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@@ -1957,6 +1957,8 @@ nir_intrinsic_from_system_value(gl_system_value val)
return nir_intrinsic_load_invocation_id;
case SYSTEM_VALUE_FRAG_COORD:
return nir_intrinsic_load_frag_coord;
case SYSTEM_VALUE_POINT_COORD:
return nir_intrinsic_load_point_coord;
case SYSTEM_VALUE_FRONT_FACE:
return nir_intrinsic_load_front_face;
case SYSTEM_VALUE_SAMPLE_ID:
@@ -2046,6 +2048,8 @@ nir_system_value_from_intrinsic(nir_intrinsic_op intrin)
return SYSTEM_VALUE_INVOCATION_ID;
case nir_intrinsic_load_frag_coord:
return SYSTEM_VALUE_FRAG_COORD;
case nir_intrinsic_load_point_coord:
return SYSTEM_VALUE_POINT_COORD;
case nir_intrinsic_load_front_face:
return SYSTEM_VALUE_FRONT_FACE;
case nir_intrinsic_load_sample_id: