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-rw-r--r--src/glsl/nir/glsl_to_nir.cpp5
-rw-r--r--src/glsl/nir/nir.c5
-rw-r--r--src/glsl/nir/nir_intrinsics.h1
-rw-r--r--src/glsl/shader_enums.h2
-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_gs_nir.cpp10
5 files changed, 21 insertions, 2 deletions
diff --git a/src/glsl/nir/glsl_to_nir.cpp b/src/glsl/nir/glsl_to_nir.cpp
index f03a107a901..c0b26340f0d 100644
--- a/src/glsl/nir/glsl_to_nir.cpp
+++ b/src/glsl/nir/glsl_to_nir.cpp
@@ -271,6 +271,11 @@ nir_visitor::visit(ir_variable *ir)
/* For whatever reason, GLSL IR makes gl_FrontFacing an input */
var->data.location = SYSTEM_VALUE_FRONT_FACE;
var->data.mode = nir_var_system_value;
+ } else if (shader->stage == MESA_SHADER_GEOMETRY &&
+ ir->data.location == VARYING_SLOT_PRIMITIVE_ID) {
+ /* For whatever reason, GLSL IR makes gl_PrimitiveIDIn an input */
+ var->data.location = SYSTEM_VALUE_PRIMITIVE_ID;
+ var->data.mode = nir_var_system_value;
} else {
var->data.mode = nir_var_shader_in;
}
diff --git a/src/glsl/nir/nir.c b/src/glsl/nir/nir.c
index 57fd959c931..fe10b380ef0 100644
--- a/src/glsl/nir/nir.c
+++ b/src/glsl/nir/nir.c
@@ -1489,10 +1489,11 @@ nir_intrinsic_from_system_value(gl_system_value val)
return nir_intrinsic_load_work_group_id;
case SYSTEM_VALUE_NUM_WORK_GROUPS:
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:
- case SYSTEM_VALUE_PRIMITIVE_ID:
case SYSTEM_VALUE_TESS_LEVEL_OUTER:
case SYSTEM_VALUE_TESS_LEVEL_INNER:
*/
@@ -1529,6 +1530,8 @@ nir_system_value_from_intrinsic(nir_intrinsic_op intrin)
return SYSTEM_VALUE_NUM_WORK_GROUPS;
case nir_intrinsic_load_work_group_id:
return SYSTEM_VALUE_WORK_GROUP_ID;
+ case nir_intrinsic_load_primitive_id:
+ return SYSTEM_VALUE_PRIMITIVE_ID;
/* FINISHME: Add tessellation intrinsics.
return SYSTEM_VALUE_TESS_COORD;
return SYSTEM_VALUE_VERTICES_IN;
diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h
index 649312fec51..ac4c2ba0eb2 100644
--- a/src/glsl/nir/nir_intrinsics.h
+++ b/src/glsl/nir/nir_intrinsics.h
@@ -194,6 +194,7 @@ SYSTEM_VALUE(instance_id, 1, 0)
SYSTEM_VALUE(sample_id, 1, 0)
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(local_invocation_id, 3, 0)
SYSTEM_VALUE(work_group_id, 3, 0)
diff --git a/src/glsl/shader_enums.h b/src/glsl/shader_enums.h
index 99acc640496..2a5d2c5bfa7 100644
--- a/src/glsl/shader_enums.h
+++ b/src/glsl/shader_enums.h
@@ -399,7 +399,7 @@ typedef enum
/*@{*/
SYSTEM_VALUE_TESS_COORD,
SYSTEM_VALUE_VERTICES_IN, /**< Tessellation vertices in input patch */
- SYSTEM_VALUE_PRIMITIVE_ID, /**< (currently not used by GS) */
+ SYSTEM_VALUE_PRIMITIVE_ID,
SYSTEM_VALUE_TESS_LEVEL_OUTER, /**< TES input */
SYSTEM_VALUE_TESS_LEVEL_INNER, /**< TES input */
/*@}*/
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_gs_nir.cpp b/src/mesa/drivers/dri/i965/brw_vec4_gs_nir.cpp
index 4f4e1e12fab..64a90e5ddff 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_gs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_gs_nir.cpp
@@ -72,6 +72,10 @@ vec4_gs_visitor::nir_setup_system_value_intrinsic(nir_intrinsic_instr *instr)
dst_reg *reg;
switch (instr->intrinsic) {
+ case nir_intrinsic_load_primitive_id:
+ /* We'll just read g1 directly; don't create a temporary. */
+ break;
+
case nir_intrinsic_load_invocation_id:
reg = &this->nir_system_values[SYSTEM_VALUE_INVOCATION_ID];
if (reg->file == BAD_FILE)
@@ -111,6 +115,12 @@ vec4_gs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
retype(get_nir_src(instr->src[0], 1), BRW_REGISTER_TYPE_UD);
break;
+ case nir_intrinsic_load_primitive_id:
+ assert(c->prog_data.include_primitive_id);
+ dest = get_nir_dest(instr->dest, BRW_REGISTER_TYPE_D);
+ emit(MOV(dest, retype(brw_vec4_grf(1, 0), BRW_REGISTER_TYPE_D)));
+ break;
+
case nir_intrinsic_load_invocation_id: {
src_reg invocation_id =
src_reg(nir_system_values[SYSTEM_VALUE_INVOCATION_ID]);