summaryrefslogtreecommitdiff
path: root/third_party/libtiff/tif_predict.h
blob: dc7144c69e6b3bac385d188bdcc7c0c6c3c2cafe (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
/* $Id: tif_predict.h,v 1.8 2010-03-10 18:56:49 bfriesen Exp $ */

/*
 * Copyright (c) 1995-1997 Sam Leffler
 * Copyright (c) 1995-1997 Silicon Graphics, Inc.
 *
 * Permission to use, copy, modify, distribute, and sell this software and
 * its documentation for any purpose is hereby granted without fee, provided
 * that (i) the above copyright notices and this permission notice appear in
 * all copies of the software and related documentation, and (ii) the names of
 * Sam Leffler and Silicon Graphics may not be used in any advertising or
 * publicity relating to the software without the specific, prior written
 * permission of Sam Leffler and Silicon Graphics.
 *
 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *
 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
 * OF THIS SOFTWARE.
 */

#ifndef _TIFFPREDICT_
#define	_TIFFPREDICT_
/*
 * ``Library-private'' Support for the Predictor Tag
 */

/*
 * Codecs that want to support the Predictor tag must place
 * this structure first in their private state block so that
 * the predictor code can cast tif_data to find its state.
 */
typedef struct {
	int             predictor;	/* predictor tag value */
	tmsize_t        stride;		/* sample stride over data */
	tmsize_t        rowsize;	/* tile/strip row size */

	TIFFCodeMethod  encoderow;	/* parent codec encode/decode row */
	TIFFCodeMethod  encodestrip;	/* parent codec encode/decode strip */
	TIFFCodeMethod  encodetile;	/* parent codec encode/decode tile */ 
	TIFFPostMethod  encodepfunc;	/* horizontal differencer */

	TIFFCodeMethod  decoderow;	/* parent codec encode/decode row */
	TIFFCodeMethod  decodestrip;	/* parent codec encode/decode strip */
	TIFFCodeMethod  decodetile;	/* parent codec encode/decode tile */ 
	TIFFPostMethod  decodepfunc;	/* horizontal accumulator */

	TIFFVGetMethod  vgetparent;	/* super-class method */
	TIFFVSetMethod  vsetparent;	/* super-class method */
	TIFFPrintMethod printdir;	/* super-class method */
	TIFFBoolMethod  setupdecode;	/* super-class method */
	TIFFBoolMethod  setupencode;	/* super-class method */
} TIFFPredictorState;

#if defined(__cplusplus)
extern "C" {
#endif
extern int TIFFPredictorInit(TIFF*);
extern int TIFFPredictorCleanup(TIFF*);
#if defined(__cplusplus)
}
#endif
#endif /* _TIFFPREDICT_ */

/* vim: set ts=8 sts=8 sw=8 noet: */
/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 8
 * fill-column: 78
 * End:
 */