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authorKenneth Graunke <kenneth@whitecape.org>2010-07-14 11:28:40 -0700
committerKenneth Graunke <kenneth@whitecape.org>2010-07-14 16:49:24 -0700
commitce5ae5f49d82b545ab204b9fdb9a8f939e0a6d78 (patch)
tree1f4eb6ed1810cbf3fc6d5ee0b77026f5feebd319 /src
parent79fed377f4625da9ce6a0a32c1e7277a2e90e914 (diff)
ir_constant_expression: Add support for ir_binop_mod.
Diffstat (limited to 'src')
-rw-r--r--src/glsl/ir_constant_expression.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 7e276e1c25..c0fe47067b 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -575,6 +575,33 @@ ir_constant_visitor::visit(ir_expression *ir)
}
break;
+ case ir_binop_mod:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (ir->operands[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ /* We don't use fmod because it rounds toward zero; GLSL specifies
+ * the use of floor.
+ */
+ data.f[c] = (op[0]->value.f[c0] - op[1]->value.f[c1])
+ * floorf(op[0]->value.f[c0] / op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+
case ir_binop_logic_and:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
for (unsigned c = 0; c < ir->operands[0]->type->components(); c++)