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1 /* $Id: tif_predict.h,v 1.8 2010-03-10 18:56:49 bfriesen Exp $ */ | |
2 | |
3 /* | |
4 * Copyright (c) 1995-1997 Sam Leffler | |
5 * Copyright (c) 1995-1997 Silicon Graphics, Inc. | |
6 * | |
7 * Permission to use, copy, modify, distribute, and sell this software and | |
8 * its documentation for any purpose is hereby granted without fee, provided | |
9 * that (i) the above copyright notices and this permission notice appear in | |
10 * all copies of the software and related documentation, and (ii) the names of | |
11 * Sam Leffler and Silicon Graphics may not be used in any advertising or | |
12 * publicity relating to the software without the specific, prior written | |
13 * permission of Sam Leffler and Silicon Graphics. | |
14 * | |
15 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, | |
16 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY | |
17 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. | |
18 * | |
19 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR | |
20 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, | |
21 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
22 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF | |
23 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
24 * OF THIS SOFTWARE. | |
25 */ | |
26 | |
27 #ifndef _TIFFPREDICT_ | |
28 #define _TIFFPREDICT_ | |
29 /* | |
30 * ``Library-private'' Support for the Predictor Tag | |
31 */ | |
32 | |
33 /* | |
34 * Codecs that want to support the Predictor tag must place | |
35 * this structure first in their private state block so that | |
36 * the predictor code can cast tif_data to find its state. | |
37 */ | |
38 typedef struct { | |
39 int predictor; /* predictor tag value */ | |
40 tmsize_t stride; /* sample stride over data */ | |
41 tmsize_t rowsize; /* tile/strip row size */ | |
42 | |
43 TIFFCodeMethod encoderow; /* parent codec encode/decode row */ | |
44 TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ | |
45 TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ | |
46 TIFFPostMethod encodepfunc; /* horizontal differencer */ | |
47 | |
48 TIFFCodeMethod decoderow; /* parent codec encode/decode row */ | |
49 TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ | |
50 TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ | |
51 TIFFPostMethod decodepfunc; /* horizontal accumulator */ | |
52 | |
53 TIFFVGetMethod vgetparent; /* super-class method */ | |
54 TIFFVSetMethod vsetparent; /* super-class method */ | |
55 TIFFPrintMethod printdir; /* super-class method */ | |
56 TIFFBoolMethod setupdecode; /* super-class method */ | |
57 TIFFBoolMethod setupencode; /* super-class method */ | |
58 } TIFFPredictorState; | |
59 | |
60 #if defined(__cplusplus) | |
61 extern "C" { | |
62 #endif | |
63 extern int TIFFPredictorInit(TIFF*); | |
64 extern int TIFFPredictorCleanup(TIFF*); | |
65 #if defined(__cplusplus) | |
66 } | |
67 #endif | |
68 #endif /* _TIFFPREDICT_ */ | |
69 | |
70 /* vim: set ts=8 sts=8 sw=8 noet: */ | |
71 /* | |
72 * Local Variables: | |
73 * mode: c | |
74 * c-basic-offset: 8 | |
75 * fill-column: 78 | |
76 * End: | |
77 */ | |
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