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glsl: Support double loop control

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Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Dave Airlie 2015-02-05 12:10:26 +02:00 • committed by Ilia Mirkin
parent 53383476d1
commit 7aa3ffe2c5
1 changed files with 6 additions and 2 deletions
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8
src/glsl/loop_controls.cpp
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@ -102,9 +102,10 @@ calculate_iterations(ir_rvalue *from, ir_rvalue *to, ir_rvalue *increment,
return -1;
if (!iter->type->is_integer()) {
const ir_expression_operation op = iter->type->is_double()
? ir_unop_d2i : ir_unop_f2i;
ir_rvalue *cast =
new(mem_ctx) ir_expression(ir_unop_f2i, glsl_type::int_type, iter,
NULL);
new(mem_ctx) ir_expression(op, glsl_type::int_type, iter, NULL);
iter = cast->constant_expression_value();
}
@ -134,6 +135,9 @@ calculate_iterations(ir_rvalue *from, ir_rvalue *to, ir_rvalue *increment,
case GLSL_TYPE_FLOAT:
iter = new(mem_ctx) ir_constant(float(iter_value + bias[i]));
break;
case GLSL_TYPE_DOUBLE:
iter = new(mem_ctx) ir_constant(double(iter_value + bias[i]));
break;
default:
unreachable(!"Unsupported type for loop iterator.");
}