| 1 | /* $Id: tif_predict.h,v 1.3 2006/03/03 14:10:09 dron Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Copyright (c) 1995-1997 Sam Leffler
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| 5 | * Copyright (c) 1995-1997 Silicon Graphics, Inc.
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| 6 | *
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| 7 | * Permission to use, copy, modify, distribute, and sell this software and
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| 8 | * its documentation for any purpose is hereby granted without fee, provided
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| 9 | * that (i) the above copyright notices and this permission notice appear in
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| 10 | * all copies of the software and related documentation, and (ii) the names of
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| 11 | * Sam Leffler and Silicon Graphics may not be used in any advertising or
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| 12 | * publicity relating to the software without the specific, prior written
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| 13 | * permission of Sam Leffler and Silicon Graphics.
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| 14 | *
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| 15 | * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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| 16 | * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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| 17 | * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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| 18 | *
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| 19 | * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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| 20 | * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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| 21 | * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 22 | * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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| 23 | * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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| 24 | * OF THIS SOFTWARE.
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| 25 | */
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| 26 |
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| 27 | #ifndef _TIFFPREDICT_
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| 28 | #define _TIFFPREDICT_
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| 29 | /*
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| 30 | * ``Library-private'' Support for the Predictor Tag
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| 31 | */
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| 32 |
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| 33 | /*
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| 34 | * Codecs that want to support the Predictor tag must place
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| 35 | * this structure first in their private state block so that
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| 36 | * the predictor code can cast tif_data to find its state.
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| 37 | */
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| 38 | typedef struct {
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| 39 | int predictor; /* predictor tag value */
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| 40 | int stride; /* sample stride over data */
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| 41 | tsize_t rowsize; /* tile/strip row size */
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| 42 |
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| 43 | TIFFPostMethod pfunc; /* horizontal differencer/accumulator */
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| 44 | TIFFCodeMethod coderow; /* parent codec encode/decode row */
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| 45 | TIFFCodeMethod codestrip; /* parent codec encode/decode strip */
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| 46 | TIFFCodeMethod codetile; /* parent codec encode/decode tile */
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| 47 | TIFFVGetMethod vgetparent; /* super-class method */
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| 48 | TIFFVSetMethod vsetparent; /* super-class method */
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| 49 | TIFFPrintMethod printdir; /* super-class method */
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| 50 | TIFFBoolMethod setupdecode; /* super-class method */
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| 51 | TIFFBoolMethod setupencode; /* super-class method */
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| 52 | } TIFFPredictorState;
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| 53 |
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| 54 | #if defined(__cplusplus)
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| 55 | extern "C" {
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| 56 | #endif
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| 57 | extern int TIFFPredictorInit(TIFF*);
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| 58 | extern int TIFFPredictorCleanup(TIFF*);
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| 59 | #if defined(__cplusplus)
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| 60 | }
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| 61 | #endif
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| 62 | #endif /* _TIFFPREDICT_ */
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| 63 |
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| 64 | /* vim: set ts=8 sts=8 sw=8 noet: */
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