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1 | |
2 | /* | |
3 | * Copyright (c) 1995-1997 Sam Leffler | |
4 | * Copyright (c) 1995-1997 Silicon Graphics, Inc. | |
5 | * | |
80ed523f | 6 | * Permission to use, copy, modify, distribute, and sell this software and |
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7 | * its documentation for any purpose is hereby granted without fee, provided |
8 | * that (i) the above copyright notices and this permission notice appear in | |
9 | * all copies of the software and related documentation, and (ii) the names of | |
10 | * Sam Leffler and Silicon Graphics may not be used in any advertising or | |
11 | * publicity relating to the software without the specific, prior written | |
12 | * permission of Sam Leffler and Silicon Graphics. | |
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13 | * |
14 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, | |
15 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY | |
16 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. | |
17 | * | |
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18 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
19 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, | |
20 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
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21 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
22 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
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23 | * OF THIS SOFTWARE. |
24 | */ | |
25 | ||
26 | #ifndef _TIFFPREDICT_ | |
27 | #define _TIFFPREDICT_ | |
28 | /* | |
29 | * ``Library-private'' Support for the Predictor Tag | |
30 | */ | |
31 | ||
32 | /* | |
33 | * Codecs that want to support the Predictor tag must place | |
34 | * this structure first in their private state block so that | |
35 | * the predictor code can cast tif_data to find its state. | |
36 | */ | |
37 | typedef struct { | |
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38 | int predictor; /* predictor tag value */ |
39 | tmsize_t stride; /* sample stride over data */ | |
40 | tmsize_t rowsize; /* tile/strip row size */ | |
41 | ||
42 | TIFFCodeMethod encoderow; /* parent codec encode/decode row */ | |
43 | TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ | |
44 | TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ | |
45 | TIFFPostMethod encodepfunc; /* horizontal differencer */ | |
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47 | TIFFCodeMethod decoderow; /* parent codec encode/decode row */ |
48 | TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ | |
49 | TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ | |
50 | TIFFPostMethod decodepfunc; /* horizontal accumulator */ | |
51 | ||
52 | TIFFVGetMethod vgetparent; /* super-class method */ | |
53 | TIFFVSetMethod vsetparent; /* super-class method */ | |
54 | TIFFPrintMethod printdir; /* super-class method */ | |
55 | TIFFBoolMethod setupdecode; /* super-class method */ | |
56 | TIFFBoolMethod setupencode; /* super-class method */ | |
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57 | } TIFFPredictorState; |
58 | ||
59 | #if defined(__cplusplus) | |
60 | extern "C" { | |
61 | #endif | |
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62 | extern int TIFFPredictorInit(TIFF*); |
63 | extern int TIFFPredictorCleanup(TIFF*); | |
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64 | #if defined(__cplusplus) |
65 | } | |
66 | #endif | |
67 | #endif /* _TIFFPREDICT_ */ | |
68 | ||
69 | /* vim: set ts=8 sts=8 sw=8 noet: */ | |
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70 | /* |
71 | * Local Variables: | |
72 | * mode: c | |
73 | * c-basic-offset: 8 | |
74 | * fill-column: 78 | |
75 | * End: | |
76 | */ |