| 1 | /* $Header: /afs/dev.mit.edu/source/repository/third/tiff/libtiff/tif_predict.h,v 1.1.1.1 2002-12-26 02:37:36 ghudson 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 | #if defined(__cplusplus) |
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| 59 | } |
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| 60 | #endif |
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| 61 | #endif /* _TIFFPREDICT_ */ |
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