diff options
Diffstat (limited to 'mesalib/src/glsl/opt_algebraic.cpp')
| -rw-r--r-- | mesalib/src/glsl/opt_algebraic.cpp | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/mesalib/src/glsl/opt_algebraic.cpp b/mesalib/src/glsl/opt_algebraic.cpp index 75948db16..70e016d22 100644 --- a/mesalib/src/glsl/opt_algebraic.cpp +++ b/mesalib/src/glsl/opt_algebraic.cpp @@ -186,12 +186,12 @@ ir_algebraic_visitor::swizzle_if_required(ir_expression *expr, ir_rvalue * ir_algebraic_visitor::handle_expression(ir_expression *ir) { - ir_constant *op_const[2] = {NULL, NULL}; - ir_expression *op_expr[2] = {NULL, NULL}; + ir_constant *op_const[3] = {NULL, NULL, NULL}; + ir_expression *op_expr[3] = {NULL, NULL, NULL}; ir_expression *temp; unsigned int i; - assert(ir->get_num_operands() <= 2); + assert(ir->get_num_operands() <= 3); for (i = 0; i < ir->get_num_operands(); i++) { if (ir->operands[i]->type->is_matrix()) return ir; @@ -415,6 +415,17 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) break; + case ir_triop_lrp: + /* Operands are (x, y, a). */ + if (is_vec_zero(op_const[2])) { + this->progress = true; + return swizzle_if_required(ir, ir->operands[0]); + } else if (is_vec_one(op_const[2])) { + this->progress = true; + return swizzle_if_required(ir, ir->operands[1]); + } + break; + default: break; } |