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-rw-r--r--src/compiler/glsl/ir_expression_operation.py24
1 files changed, 23 insertions, 1 deletions
diff --git a/src/compiler/glsl/ir_expression_operation.py b/src/compiler/glsl/ir_expression_operation.py
index 0bca59c7ecc..4d799003c95 100644
--- a/src/compiler/glsl/ir_expression_operation.py
+++ b/src/compiler/glsl/ir_expression_operation.py
@@ -357,6 +357,24 @@ constant_template_lrp = mako.template.Template("""\
break;
}""")
+# This template is for ir_triop_csel. This expression is really unique
+# because not all of the operands are the same type, and the second operand
+# determines the type of the expression (instead of the first).
+constant_template_csel = mako.template.Template("""\
+ case ${op.get_enum_name()}:
+ for (unsigned c = 0; c < components; c++) {
+ switch (this->type->base_type) {
+ % for dst_type, src_types in op.signatures():
+ case ${src_types[1].glsl_type}:
+ data.${dst_type.union_field}[c] = ${op.get_c_expression(src_types)};
+ break;
+ % endfor
+ default:
+ assert(0);
+ }
+ }
+ break;""")
+
vector_scalar_operation = "vector-scalar"
horizontal_operation = "horizontal"
@@ -443,6 +461,8 @@ class operation(object):
return constant_template_vector_insert.render(op=self)
elif self.name == "lrp":
return constant_template_lrp.render(op=self)
+ elif self.name == "csel":
+ return constant_template_csel.render(op=self)
else:
return constant_template3.render(op=self)
elif self.num_operands == 4:
@@ -700,7 +720,9 @@ ir_expression_operation = [
# component on vectors).
#
# See also lower_instructions_visitor::ldexp_to_arith
- operation("csel", 3),
+ operation("csel", 3,
+ all_signatures=zip(all_types, zip(len(all_types) * (bool_type,), all_types, all_types)),
+ c_expression="{src0} ? {src1} : {src2}"),
operation("bitfield_extract", 3,
all_signatures=((int_type, (uint_type, int_type, int_type)),