/src/ftk_image_decoder.h

 1/*
 2 * File: ftk_image_decoder.h    
 3 * Author:  Li XianJing <xianjimli@hotmail.com>
 4 * Brief:   bitmap decoder interface.
 5 *
 6 * Copyright (c) 2009 - 2010  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 * 2009-10-03 Li XianJing <xianjimli@hotmail.com> created
29 *
30 */
31
32#ifndef FTK_IMAGE_DECODER_H
33#define FTK_IMAGE_DECODER_H
34
35#include "ftk_bitmap.h"
36
37FTK_BEGIN_DECLS
38
39struct _FtkImageDecoder;
40typedef struct _FtkImageDecoder FtkImageDecoder;
41
42typedef Ret       (*FtkImageDecoderMatch)(FtkImageDecoder* thiz, const char* filename);
43typedef FtkBitmap* (*FtkImageDecoderDecode)(FtkImageDecoder* thiz, const char* filename);
44typedef void      (*FtkImageDecoderDestroy)(FtkImageDecoder* thiz);
45
46struct _FtkImageDecoder
47{
48	FtkImageDecoderMatch   match;
49	FtkImageDecoderDecode  decode;
50	FtkImageDecoderDestroy destroy;
51
52	char priv[ZERO_LEN_ARRAY];
53};
54
55static inline Ret ftk_image_decoder_match(FtkImageDecoder* thiz, const char* filename)
56{
57	return_val_if_fail(thiz != NULL && thiz->match != NULL, RET_FAIL);
58
59	return thiz->match(thiz, filename);
60}
61
62static inline FtkBitmap* ftk_image_decoder_decode(FtkImageDecoder* thiz, const char* filename)
63{
64	return_val_if_fail(thiz != NULL && thiz->decode != NULL, NULL);
65
66	return thiz->decode(thiz, filename);
67}
68
69static inline void ftk_image_decoder_destroy(FtkImageDecoder* thiz)
70{
71	if(thiz != NULL && thiz->destroy != NULL)
72	{
73		thiz->destroy(thiz);
74	}
75
76	return;
77}
78
79FTK_END_DECLS
80
81#endif/*FTK_IMAGE_DECODER_H*/
82