| /* |
| * Copyright (c) 1995-1997 Sam Leffler |
| * Copyright (c) 1995-1997 Silicon Graphics, Inc. |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and |
| * its documentation for any purpose is hereby granted without fee, provided |
| * that (i) the above copyright notices and this permission notice appear in |
| * all copies of the software and related documentation, and (ii) the names of |
| * Sam Leffler and Silicon Graphics may not be used in any advertising or |
| * publicity relating to the software without the specific, prior written |
| * permission of Sam Leffler and Silicon Graphics. |
| * |
| * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY |
| * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR |
| * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, |
| * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, |
| * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF |
| * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| */ |
| |
| #ifndef _TIFFPREDICT_ |
| #define _TIFFPREDICT_ |
| |
| #include "tiffio.h" |
| #include "tiffiop.h" |
| |
| /* |
| * ``Library-private'' Support for the Predictor Tag |
| */ |
| |
| typedef int (*TIFFEncodeDecodeMethod)(TIFF *tif, uint8_t *buf, tmsize_t size); |
| |
| /* |
| * Codecs that want to support the Predictor tag must place |
| * this structure first in their private state block so that |
| * the predictor code can cast tif_data to find its state. |
| */ |
| typedef struct |
| { |
| int predictor; /* predictor tag value */ |
| tmsize_t stride; /* sample stride over data */ |
| tmsize_t rowsize; /* tile/strip row size */ |
| |
| TIFFCodeMethod encoderow; /* parent codec encode/decode row */ |
| TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */ |
| TIFFCodeMethod encodetile; /* parent codec encode/decode tile */ |
| TIFFEncodeDecodeMethod encodepfunc; /* horizontal differencer */ |
| |
| TIFFCodeMethod decoderow; /* parent codec encode/decode row */ |
| TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */ |
| TIFFCodeMethod decodetile; /* parent codec encode/decode tile */ |
| TIFFEncodeDecodeMethod decodepfunc; /* horizontal accumulator */ |
| |
| TIFFVGetMethod vgetparent; /* super-class method */ |
| TIFFVSetMethod vsetparent; /* super-class method */ |
| TIFFPrintMethod printdir; /* super-class method */ |
| TIFFBoolMethod setupdecode; /* super-class method */ |
| TIFFBoolMethod setupencode; /* super-class method */ |
| } TIFFPredictorState; |
| |
| #if defined(__cplusplus) |
| extern "C" |
| { |
| #endif |
| extern int TIFFPredictorInit(TIFF *); |
| extern int TIFFPredictorCleanup(TIFF *); |
| #if defined(__cplusplus) |
| } |
| #endif |
| #endif /* _TIFFPREDICT_ */ |