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glsl: Generate code for constant ir_binop_vector_extract 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 12:52:45 -07:00
parent d8dd49419a
commit 9f1d7c5235
1 changed files with 21 additions and 1 deletions
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22
src/compiler/glsl/ir_expression_operation.py
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@@ -270,6 +270,24 @@ constant_template_horizontal = mako.template.Template("""\
} }
break;""") break;""")
# This template is for ir_binop_vector_extract.
constant_template_vector_extract = mako.template.Template("""\
case ${op.get_enum_name()}: {
const int c = CLAMP(op[1]->value.i[0], 0,
(int) op[0]->type->vector_elements - 1);
switch (op[0]->type->base_type) {
% for dst_type, src_types in op.signatures():
case ${src_types[0].glsl_type}:
data.${dst_type.union_field}[0] = op[0]->value.${src_types[0].union_field}[c];
break;
% endfor
default:
assert(0);
}
break;
}""")
vector_scalar_operation = "vector-scalar" vector_scalar_operation = "vector-scalar"
horizontal_operation = "horizontal" horizontal_operation = "horizontal"
@@ -337,6 +355,8 @@ class operation(object):
elif self.num_operands == 2: elif self.num_operands == 2:
if self.name == "mul": if self.name == "mul":
return constant_template_mul.render(op=self) return constant_template_mul.render(op=self)
elif self.name == "vector_extract":
return constant_template_vector_extract.render(op=self)
elif vector_scalar_operation in self.flags: elif vector_scalar_operation in self.flags:
return constant_template_vector_scalar.render(op=self) return constant_template_vector_scalar.render(op=self)
elif horizontal_operation in self.flags and types_identical_operation in self.flags: elif horizontal_operation in self.flags and types_identical_operation in self.flags:
@@ -574,7 +594,7 @@ ir_expression_operation = [
# #
# operand0 is the vector # operand0 is the vector
# operand1 is the index of the field to read from operand0 # operand1 is the index of the field to read from operand0
operation("vector_extract", 2), operation("vector_extract", 2, source_types=all_types, c_expression="anything-except-None"),
# Interpolate fs input at offset # Interpolate fs input at offset
# #