/xbmc/visualizations/XBMCProjectM/libprojectM/PerFrameEqn.hpp

 1/**
 2 * projectM -- Milkdrop-esque visualisation SDK
 3 * Copyright (C)2003-2007 projectM Team
 4 *
 5 * This library is free software; you can redistribute it and/or
 6 * modify it under the terms of the GNU Lesser General Public
 7 * License as published by the Free Software Foundation; either
 8 * version 2.1 of the License, or (at your option) any later version.
 9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18 * See 'LICENSE.txt' included within this release
19 *
20 */
21/**
22 * $Id$
23 *
24 * Per-frame equation
25 *
26 * $Log$
27 */
28
29#ifndef _PER_FRAME_EQN_H
30#define _PER_FRAME_EQN_H
31
32#define PER_FRAME_EQN_DEBUG 0
33
34class GenExpr;
35class Param;
36class PerFrameEqn;
37
38class PerFrameEqn {
39public:
40    int index; /* a unique id for each per frame eqn (generated by order in preset files) */
41    Param *param; /* parameter to be assigned a value */
42    GenExpr *gen_expr;   /* expression that paremeter is equal to */
43     
44    PerFrameEqn(int index, Param * param, GenExpr * gen_expr);
45    ~PerFrameEqn();
46
47    /// Evaluate the per frame equation
48    void evaluate();
49
50  };
51
52
53#endif /** !_PER_FRAME_EQN_H */