Mesa (master): glsl: Implement constant expr evaluation for bitwise logic ops
Kenneth Graunke
kwg at kemper.freedesktop.org
Fri Oct 15 07:20:51 UTC 2010
Module: Mesa
Branch: master
Commit: 4761d0d22ba79fa34adf679007498287e9fedca2
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4761d0d22ba79fa34adf679007498287e9fedca2
Author: Chad Versace <chad at chad-versace.us>
Date: Sat Oct 9 21:27:41 2010 -0700
glsl: Implement constant expr evaluation for bitwise logic ops
Implement by adding the following cases to
ir_exporession::constant_expression_value():
- ir_binop_bit_and
- ir_binop_bit_or
- ir_binop_bit_xor
---
src/glsl/ir_constant_expression.cpp | 54 +++++++++++++++++++++++++++++++++++
1 files changed, 54 insertions(+), 0 deletions(-)
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index b250a16..048c020 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -728,6 +728,60 @@ ir_expression::constant_expression_value()
}
break;
+ case ir_binop_bit_and:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] & op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] & op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_bit_or:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] | op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] | op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_bit_xor:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] ^ op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] ^ op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
default:
/* FINISHME: Should handle all expression types. */
return NULL;
More information about the mesa-commit
mailing list