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/*

 * Copyright © 2010 Intel Corporation

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice (including the next

 * paragraph) shall be included in all copies or substantial portions of the

 * Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 */

/**

 * \file ir_rvalue_visitor.cpp

 *

 * Generic class to implement the common pattern we have of wanting to

 * visit each ir_rvalue * and possibly change that node to a different

 * class.

 */

#include "ir.h"

#include "ir_visitor.h"

#include "ir_rvalue_visitor.h"

#include "glsl_types.h"

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_expression *ir)

{

   unsigned int operand;

   for (operand = 0; operand < ir->get_num_operands(); operand++) {

      handle_rvalue(&ir->operands[operand]);

   }

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_texture *ir)

{

   handle_rvalue(&ir->coordinate);

   handle_rvalue(&ir->projector);

   handle_rvalue(&ir->shadow_comparitor);

   handle_rvalue(&ir->offset);

   switch (ir->op) {

   case ir_tex:

   case ir_lod:

   case ir_query_levels:

      break;

   case ir_txb:

      handle_rvalue(&ir->lod_info.bias);

      break;

   case ir_txf:

   case ir_txl:

   case ir_txs:

      handle_rvalue(&ir->lod_info.lod);

      break;

   case ir_txf_ms:

      handle_rvalue(&ir->lod_info.sample_index);

      break;

   case ir_txd:

      handle_rvalue(&ir->lod_info.grad.dPdx);

      handle_rvalue(&ir->lod_info.grad.dPdy);

      break;

   case ir_tg4:

      handle_rvalue(&ir->lod_info.component);

      break;

   }

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_swizzle *ir)

{

   handle_rvalue(&ir->val);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_dereference_array *ir)

{

   /* The array index is not the target of the assignment, so clear the

    * 'in_assignee' flag.  Restore it after returning from the array index.

    */

   const bool was_in_assignee = this->in_assignee;

   this->in_assignee = false;

   handle_rvalue(&ir->array_index);

   this->in_assignee = was_in_assignee;

   handle_rvalue(&ir->array);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_dereference_record *ir)

{

   handle_rvalue(&ir->record);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_assignment *ir)

{

   handle_rvalue(&ir->rhs);

   handle_rvalue(&ir->condition);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_call *ir)

{

   foreach_in_list_safe(ir_rvalue, param, &ir->actual_parameters) {

      ir_rvalue *new_param = param;

      handle_rvalue(&new_param);

      if (new_param != param) {

	 param->replace_with(new_param);

      }

   }

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_discard *ir)

{

   handle_rvalue(&ir->condition);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_return *ir)

{

   handle_rvalue(&ir->value);;

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_if *ir)

{

   handle_rvalue(&ir->condition);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_emit_vertex *ir)

{

   handle_rvalue(&ir->stream);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_base_visitor::rvalue_visit(ir_end_primitive *ir)

{

   handle_rvalue(&ir->stream);

   return visit_continue;

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_expression *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_texture *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_swizzle *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_dereference_array *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_dereference_record *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_assignment *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_call *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_discard *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_return *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_if *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_emit_vertex *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_visitor::visit_leave(ir_end_primitive *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_expression *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_texture *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_swizzle *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_dereference_array *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_dereference_record *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_assignment *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_call *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_discard *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_return *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_if *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_emit_vertex *ir)

{

   return rvalue_visit(ir);

}

ir_visitor_status

ir_rvalue_enter_visitor::visit_enter(ir_end_primitive *ir)

{

   return rvalue_visit(ir);

}