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i965/nir: Support gl_LocalInvocationID variable

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Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Kristian Høgsberg <krh@bitplanet.net>
This commit is contained in:
Jordan Justen 2015-03-13 11:34:48 -07:00
parent 43624361df
commit 49f999b9cb
1 changed files with 17 additions and 0 deletions
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17
src/mesa/drivers/dri/i965/brw_fs_nir.cpp
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@ -337,6 +337,13 @@ emit_system_values_block(nir_block *block, void *void_visitor)
BRW_REGISTER_TYPE_D));
break;
case nir_intrinsic_load_local_invocation_id:
assert(v->stage == MESA_SHADER_COMPUTE);
reg = &v->nir_system_values[SYSTEM_VALUE_LOCAL_INVOCATION_ID];
if (reg->file == BAD_FILE)
*reg = *v->emit_cs_local_invocation_id_setup();
break;
default:
break;
}
@ -1709,6 +1716,16 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld, nir_intrinsic_instr *instr
((struct brw_cs_prog_data *) prog_data)->uses_barrier = true;
break;
case nir_intrinsic_load_local_invocation_id: {
gl_system_value sv = nir_system_value_from_intrinsic(instr->intrinsic);
fs_reg val = nir_system_values[sv];
assert(val.file != BAD_FILE);
dest.type = val.type;
for (unsigned i = 0; i < 3; i++)
bld.MOV(offset(dest, bld, i), offset(val, bld, i));
break;
}
default:
unreachable("unknown intrinsic");
}