OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

glsl: Generate code for constant unary expressions that don't assign the destination

Browse Source 
These are operations like the pack functions that have separate
functions that assign multiple outputs from a single input.

v2: Correct the source and destination types.  They were previously
transposed.

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Acked-by: Dylan Baker <dylan@pnwbakers.com>
This commit is contained in:
Ian Romanick
2016-07-12 10:51:43 -07:00
parent 8cf9157786
commit 0f87c54d1c
1 changed files with 18 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
src/compiler/glsl/ir_expression_operation.py
View File

@@ -188,10 +188,18 @@ constant_template_horizontal_single_implementation = mako.template.Template("""\
data.${op.dest_type.union_field}[0] = ${op.c_expression['default']};
break;""")
# This template is for operations that are horizontal and do not assign the
# result. The various unpack operations are examples.
constant_template_horizontal_nonassignment = mako.template.Template("""\
case ${op.get_enum_name()}:
${op.c_expression['default']};
break;""")
vector_scalar_operation = "vector-scalar"
horizontal_operation = "horizontal"
types_identical_operation = "identical"
non_assign_operation = "nonassign"
class operation(object):
def __init__(self, name, num_operands, printable_name = None, source_types = None, dest_type = None, c_expression = None, flags = None):
@@ -230,7 +238,9 @@ class operation(object):
return None
if self.num_operands == 1:
if horizontal_operation in self.flags:
if horizontal_operation in self.flags and non_assign_operation in self.flags:
return constant_template_horizontal_nonassignment.render(op=self)
elif horizontal_operation in self.flags:
return constant_template_horizontal_single_implementation.render(op=self)
elif self.dest_type is not None and len(self.source_types) == 1:
return constant_template2.render(op=self)
@@ -351,11 +361,11 @@ ir_expression_operation = [
operation("pack_unorm_2x16", 1, printable_name="packUnorm2x16", source_types=(float_type,), dest_type=uint_type, c_expression="pack_2x16(pack_unorm_1x16, op[0]->value.f[0], op[0]->value.f[1])", flags=horizontal_operation),
operation("pack_unorm_4x8", 1, printable_name="packUnorm4x8", source_types=(float_type,), dest_type=uint_type, c_expression="pack_4x8(pack_unorm_1x8, op[0]->value.f[0], op[0]->value.f[1], op[0]->value.f[2], op[0]->value.f[3])", flags=horizontal_operation),
operation("pack_half_2x16", 1, printable_name="packHalf2x16", source_types=(float_type,), dest_type=uint_type, c_expression="pack_2x16(pack_half_1x16, op[0]->value.f[0], op[0]->value.f[1])", flags=horizontal_operation),
operation("unpack_snorm_2x16", 1, printable_name="unpackSnorm2x16"),
operation("unpack_snorm_4x8", 1, printable_name="unpackSnorm4x8"),
operation("unpack_unorm_2x16", 1, printable_name="unpackUnorm2x16"),
operation("unpack_unorm_4x8", 1, printable_name="unpackUnorm4x8"),
operation("unpack_half_2x16", 1, printable_name="unpackHalf2x16"),
operation("unpack_snorm_2x16", 1, printable_name="unpackSnorm2x16", source_types=(uint_type,), dest_type=float_type, c_expression="unpack_2x16(unpack_snorm_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("unpack_snorm_4x8", 1, printable_name="unpackSnorm4x8", source_types=(uint_type,), dest_type=float_type, c_expression="unpack_4x8(unpack_snorm_1x8, op[0]->value.u[0], &data.f[0], &data.f[1], &data.f[2], &data.f[3])", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("unpack_unorm_2x16", 1, printable_name="unpackUnorm2x16", source_types=(uint_type,), dest_type=float_type, c_expression="unpack_2x16(unpack_unorm_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("unpack_unorm_4x8", 1, printable_name="unpackUnorm4x8", source_types=(uint_type,), dest_type=float_type, c_expression="unpack_4x8(unpack_unorm_1x8, op[0]->value.u[0], &data.f[0], &data.f[1], &data.f[2], &data.f[3])", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("unpack_half_2x16", 1, printable_name="unpackHalf2x16", source_types=(uint_type,), dest_type=float_type, c_expression="unpack_2x16(unpack_half_1x16, op[0]->value.u[0], &data.f[0], &data.f[1])", flags=frozenset((horizontal_operation, non_assign_operation))),
# Bit operations, part of ARB_gpu_shader5.
operation("bitfield_reverse", 1, source_types=integer_types, c_expression="bitfield_reverse({src0})"),
@@ -366,8 +376,8 @@ ir_expression_operation = [
operation("saturate", 1, printable_name="sat", source_types=(float_type,), c_expression="CLAMP({src0}, 0.0f, 1.0f)"),
# Double packing, part of ARB_gpu_shader_fp64.
operation("pack_double_2x32", 1, printable_name="packDouble2x32"),
operation("unpack_double_2x32", 1, printable_name="unpackDouble2x32"),
operation("pack_double_2x32", 1, printable_name="packDouble2x32", source_types=(uint_type,), dest_type=double_type, c_expression="memcpy(&data.d[0], &op[0]->value.u[0], sizeof(double))", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("unpack_double_2x32", 1, printable_name="unpackDouble2x32", source_types=(double_type,), dest_type=uint_type, c_expression="memcpy(&data.u[0], &op[0]->value.d[0], sizeof(double))", flags=frozenset((horizontal_operation, non_assign_operation))),
operation("frexp_sig", 1),
operation("frexp_exp", 1),