50 #include "ir.h"
66    bool is_tess_level_array(ir_rvalue *ir);
67    ir_rvalue *lower_tess_level_array(ir_rvalue *ir);
69    void visit_new_assignment(ir_assignment *ir);
103 lower_tess_level_visitor::visit(ir_variable *ir)  in visit()  argument
105    if ((!ir->name) ||  in visit()
106        ((strcmp(ir->name, "gl_TessLevelInner") != 0) &&  in visit()
107         (strcmp(ir->name, "gl_TessLevelOuter") != 0)))  in visit()
110    assert (ir->type->is_array());  in visit()
112    if (strcmp(ir->name, "gl_TessLevelOuter") == 0) {  in visit()
116       old_tess_level_outer_var = ir;  in visit()
117       assert(ir->type->fields.array == glsl_type::float_type);  in visit()
120       new_tess_level_outer_var = ir->clone(ralloc_parent(ir), NULL);  in visit()
128       ir->replace_with(new_tess_level_outer_var);  in visit()
129    } else if (strcmp(ir->name, "gl_TessLevelInner") == 0) {  in visit()
133       old_tess_level_inner_var = ir;  in visit()
134       assert(ir->type->fields.array == glsl_type::float_type);  in visit()
137       new_tess_level_inner_var = ir->clone(ralloc_parent(ir), NULL);  in visit()
145       ir->replace_with(new_tess_level_inner_var);  in visit()
165 lower_tess_level_visitor::is_tess_level_array(ir_rvalue *ir)  in is_tess_level_array()  argument
167    if (!ir->type->is_array())  in is_tess_level_array()
169    if (ir->type->fields.array != glsl_type::float_type)  in is_tess_level_array()
173       if (ir->variable_referenced() == this->old_tess_level_outer_var)  in is_tess_level_array()
177       if (ir->variable_referenced() == this->old_tess_level_inner_var)  in is_tess_level_array()
185  * If the given ir satisfies is_tess_level_array(), return new ir
194 lower_tess_level_visitor::lower_tess_level_array(ir_rvalue *ir)  in lower_tess_level_array()  argument
196    if (!ir->type->is_array())  in lower_tess_level_array()
198    if (ir->type->fields.array != glsl_type::float_type)  in lower_tess_level_array()
204       if (ir->variable_referenced() == this->old_tess_level_outer_var)  in lower_tess_level_array()
208       if (ir->variable_referenced() == this->old_tess_level_inner_var)  in lower_tess_level_array()
215    assert(ir->as_dereference_variable());  in lower_tess_level_array()
216    return new(ralloc_parent(ir)) ir_dereference_variable(*new_var);  in lower_tess_level_array()
250 lower_tess_level_visitor::fix_lhs(ir_assignment *ir)  in fix_lhs()  argument
252    if (ir->lhs->ir_type != ir_type_expression)  in fix_lhs()
254    void *mem_ctx = ralloc_parent(ir);  in fix_lhs()
255    ir_expression *const expr = (ir_expression *) ir->lhs;  in fix_lhs()
271       ir->rhs = new(mem_ctx) ir_expression(ir_triop_vector_insert,  in fix_lhs()
274                                            ir->rhs,  in fix_lhs()
277    ir->set_lhs(new_lhs);  in fix_lhs()
283       ir->write_mask = 1 << old_index_constant->get_int_component(0);  in fix_lhs()
285       ir->write_mask = (1 << expr->operands[0]->type->vector_elements) - 1;  in fix_lhs()
296 lower_tess_level_visitor::visit_leave(ir_assignment *ir)  in visit_leave()  argument
299     * called on ir->rhs and ir->condition.  in visit_leave()
301    ir_rvalue_visitor::visit_leave(ir);  in visit_leave()
303    if (this->is_tess_level_array(ir->lhs) ||  in visit_leave()
304        this->is_tess_level_array(ir->rhs)) {  in visit_leave()
315       void *ctx = ralloc_parent(ir);  in visit_leave()
316       int array_size = ir->lhs->type->array_size();  in visit_leave()
319             ir->lhs->clone(ctx, NULL), new(ctx) ir_constant(i));  in visit_leave()
321             ir->rhs->clone(ctx, NULL), new(ctx) ir_constant(i));  in visit_leave()
339       ir->remove();  in visit_leave()
352    handle_rvalue((ir_rvalue **)&ir->lhs);  in visit_leave()
353    this->fix_lhs(ir);  in visit_leave()
355    return rvalue_visit(ir);  in visit_leave()
366 lower_tess_level_visitor::visit_new_assignment(ir_assignment *ir)  in visit_new_assignment()  argument
369    this->base_ir = ir;  in visit_new_assignment()
370    ir->accept(this);  in visit_new_assignment()
383 lower_tess_level_visitor::visit_leave(ir_call *ir)  in visit_leave()  argument
385    void *ctx = ralloc_parent(ir);  in visit_leave()
387    const exec_node *formal_param_node = ir->callee->parameters.get_head_raw();  in visit_leave()
388    const exec_node *actual_param_node = ir->actual_parameters.get_head_raw();  in visit_leave()
440    return rvalue_visit(ir);  in visit_leave()
453    visit_list_elements(&v, shader->ir);  in lower_tess_level()