They're both implemented the same in GLSL IR (since round() has
undefined behavior for N.5).
Fixes glsl-1.30/compiler/built-in-functions/round*
---
src/glsl/ir_constant_expression.cpp | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/src/glsl/ir_constant_expression.cpp
b/src/glsl/ir_constant_expression.cpp
index b3fe6cf..59a7e67 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -196,6 +196,13 @@ ir_expression::constant_expression_value()
}
break;
+ case ir_unop_round_even:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = rint(op[0]->value.f[c]);
+ }
+ break;
+
case ir_unop_ceil:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
for (unsigned c = 0; c < op[0]->type->components(); c++) {
@@ -1324,6 +1331,9 @@ ir_call::constant_expression_value()
* op[1]->value.f[c];
}
}
+ } else if (strcmp(callee, "round") == 0 ||
+ strcmp(callee, "roundEven") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_round_even, op[0]);
} else if (strcmp(callee, "sign") == 0) {
expr = new(mem_ctx) ir_expression(ir_unop_sign, type, op[0], NULL);
} else if (strcmp(callee, "sin") == 0) {
--
1.7.5.4
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