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glsl: Generate code for constant ir_quadop_bitfield_insert expressions

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v2: 'for (a, b) in d' => 'for a, b in d'.  Suggested by Dylan.

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 16:15:10 -07:00
parent 4d8ac28b20
commit f8e185a65f
1 changed files with 21 additions and 4 deletions
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25
src/compiler/glsl/ir_expression_operation.py
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@ -91,12 +91,20 @@ integer_types = (uint_type, int_type)
real_types = (float_type, double_type)
# This template is for unary and binary operations that can only have operands
# of a single type. ir_unop_logic_not is an example.
# of a single type or the implementation for all types is identical.
# ir_unop_logic_not is an example of the former, and ir_quadop_bitfield_insert
# is an example of the latter..
constant_template0 = mako.template.Template("""\
case ${op.get_enum_name()}:
% if len(op.source_types) == 1:
assert(op[0]->type->base_type == ${op.source_types[0].glsl_type});
% endif
for (unsigned c = 0; c < op[0]->type->components(); c++)
data.${op.source_types[0].union_field}[c] = ${op.get_c_expression(op.source_types)};
% for dst_type, src_types in op.signatures():
% if loop.index == 0:
data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types)};
% endif
% endfor
break;""")
# This template is for unary operations that can have operands of a several
@ -394,6 +402,9 @@ class operation(object):
return constant_template_vector_insert.render(op=self)
else:
return constant_template3.render(op=self)
elif self.num_operands == 4:
if types_identical_operation in self.flags:
return constant_template0.render(op=self)
return None
@ -402,12 +413,14 @@ class operation(object):
src0 = "op[0]->value.{}[{}]".format(types[0].union_field, indices[0])
src1 = "op[1]->value.{}[{}]".format(types[1].union_field, indices[1]) if len(types) >= 2 else "ERROR"
src2 = "op[2]->value.{}[{}]".format(types[2].union_field, indices[2]) if len(types) >= 3 else "ERROR"
src3 = "op[3]->value.{}[c]".format(types[3].union_field) if len(types) >= 4 else "ERROR"
expr = self.c_expression[types[0].union_field] if types[0].union_field in self.c_expression else self.c_expression['default']
return expr.format(src0=src0,
src1=src1,
src2=src2)
src2=src2,
src3=src3)
def signatures(self):
@ -657,7 +670,11 @@ ir_expression_operation = [
# operand2 is the index in operand0 to be modified
operation("vector_insert", 3, source_types=all_types, c_expression="anything-except-None"),
operation("bitfield_insert", 4),
operation("bitfield_insert", 4,
all_signatures=((uint_type, (uint_type, uint_type, int_type, int_type)),
(int_type, (int_type, int_type, int_type, int_type))),
c_expression="bitfield_insert({src0}, {src1}, {src2}, {src3})",
flags=types_identical_operation),
operation("vector", 4),
]