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Clementine-audio-player-Mac.../3rdparty/libprojectm/MilkdropPresetFactory/Eval.hpp

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2010-06-06 23:43:45 +02:00
/**
* projectM -- Milkdrop-esque visualisation SDK
* Copyright (C)2003-2007 projectM Team
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
* See 'LICENSE.txt' included within this release
*
*/
/**
* $Id$
*
* Expression evaluators
*
* $Log$
*/
/* Eval.hpp: evaluation functions of expressions */
#ifndef __EVAL_H
#define __EVAL_H
#include "fatal.h"
//#include "projectM.hpp"
#include "Func.hpp"
#include "Param.hpp"
#define EVAL_DEBUG 0
//#define EVAL_DEBUG_DOUBLE 2
#define VAL_T 1
#define PREFUN_T 3
#define TREE_T 4
#define NONE_T 0
#define CONSTANT_TERM_T 0
#define PARAM_TERM_T 1
#define INFIX_ADD 0
#define INFIX_MINUS 1
#define INFIX_MOD 2
#define INFIX_DIV 3
#define INFIX_MULT 4
#define INFIX_OR 5
#define INFIX_AND 6
class DLLEXPORT InfixOp;
class Eval {
public:
static InfixOp *infix_add,
*infix_minus,
*infix_div,
*infix_mult,
*infix_or,
*infix_and,
*infix_mod,
*infix_negative,
*infix_positive;
float eval_gen_expr(GenExpr * gen_expr);
inline GenExpr * opt_gen_expr(GenExpr * gen_expr, int ** param_list);
GenExpr * const_to_expr(float val);
GenExpr * param_to_expr(Param * param);
GenExpr * prefun_to_expr(float (*func_ptr)(), GenExpr ** expr_list, int num_args);
static TreeExpr * new_tree_expr(InfixOp * infix_op, GenExpr * gen_expr, TreeExpr * left, TreeExpr * right);
static GenExpr * new_gen_expr(int type, void * item);
static ValExpr * new_val_expr(int type, Term *term);
static InfixOp * new_infix_op(int type, int precedence);
static int init_infix_ops();
static int destroy_infix_ops();
void reset_engine_vars();
GenExpr * clone_gen_expr(GenExpr * gen_expr);
TreeExpr * clone_tree_expr(TreeExpr * tree_expr);
ValExpr * clone_val_expr(ValExpr * val_expr);
PrefunExpr * clone_prefun_expr(PrefunExpr * prefun_expr);
};
#endif /** !_EVAL_H */