Mesa (master): glsl: Add constant evaluation of ir_unop_saturate
Abdiel Janulgue
abj at kemper.freedesktop.org
Sun Aug 31 18:04:53 UTC 2014
Module: Mesa
Branch: master
Commit: 4c0ccfc5b39bf69ef90145e5ccf4cea04d9a8a73
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4c0ccfc5b39bf69ef90145e5ccf4cea04d9a8a73
Author: Abdiel Janulgue <abdiel.janulgue at linux.intel.com>
Date: Thu Jun 12 13:53:40 2014 -0700
glsl: Add constant evaluation of ir_unop_saturate
v2: Use CLAMP macro (Ian Romanick)
Signed-off-by: Abdiel Janulgue <abdiel.janulgue at linux.intel.com>
Reviewed-by: Matt Turner <mattst88 at gmail.com>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
---
src/glsl/ir_constant_expression.cpp | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 9606021..1e8b3a3 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -1469,6 +1469,12 @@ ir_expression::constant_expression_value(struct hash_table *variable_context)
}
break;
+ case ir_unop_saturate:
+ for (unsigned c = 0; c < components; c++) {
+ data.f[c] = CLAMP(op[0]->value.f[c], 0.0f, 1.0f);
+ }
+ break;
+
case ir_triop_bitfield_extract: {
int offset = op[1]->value.i[0];
int bits = op[2]->value.i[0];
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