blob: dc7144c69e6b3bac385d188bdcc7c0c6c3c2cafe
| 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 | */ |
| 78 |