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/src/ftk_interpolator.h

http://ftk.googlecode.com/
C++ Header | 73 lines | 30 code | 14 blank | 29 comment | 7 complexity | 4b57dbbaa084e52c13a4810990c4e551 MD5 | raw file
 1/*
 2 * File: ftk_interpolator.h    
 3 * Author:  Li XianJing <xianjimli@hotmail.com>
 4 * Brief:   interpolator for animation.
 5 *
 6 * Copyright (c) 2009 - 2011  Li XianJing <xianjimli@hotmail.com>
 7 *
 8 * Licensed under the Academic Free License version 2.1
 9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
23 */
24
25/*
26 * History:
27 * ================================================================
28 * 2011-03-20 Li XianJing <xianjimli@hotmail.com> created
29 *
30 */
31
32#ifndef FTK_INTERPOLATOR_H
33#define FTK_INTERPOLATOR_H
34#include "ftk_typedef.h"
35#include "ftk_log.h"
36
37FTK_BEGIN_DECLS
38
39struct _FtkInterpolator;
40typedef struct _FtkInterpolator FtkInterpolator;
41
42typedef float (*FtkInterpolatorGet)(FtkInterpolator* thiz, float percent);
43typedef void  (*FtkInterpolatorDestroy)(FtkInterpolator* thiz);
44
45struct _FtkInterpolator
46{
47	FtkInterpolatorGet get;
48	FtkInterpolatorDestroy destroy;
49
50	char priv[ZERO_LEN_ARRAY];
51};
52
53static inline float ftk_interpolator_get(FtkInterpolator* thiz, float percent)
54{
55	return_val_if_fail(thiz != NULL && thiz->get != NULL, 0);
56
57	return thiz->get(thiz, percent);
58}
59
60static inline void ftk_interpolator_destroy(FtkInterpolator* thiz)
61{
62	if(thiz != NULL && thiz->destroy != NULL)
63	{
64		thiz->destroy(thiz);
65	}
66
67	return;
68}
69
70FTK_END_DECLS
71
72#endif/*FTK_INTERPOLATOR_H*/
73