1 /* PDFlib GmbH cvsid: 2 * $Id: tif_predict.h,v 1.6 2005/12/19 18:36:55 rjs Exp $ */ 3 4 /* 5 * Copyright (c) 1995-1997 Sam Leffler 6 * Copyright (c) 1995-1997 Silicon Graphics, Inc. 7 * 8 * Permission to use, copy, modify, distribute, and sell this software and 9 * its documentation for any purpose is hereby granted without fee, provided 10 * that (i) the above copyright notices and this permission notice appear in 11 * all copies of the software and related documentation, and (ii) the names of 12 * Sam Leffler and Silicon Graphics may not be used in any advertising or 13 * publicity relating to the software without the specific, prior written 14 * permission of Sam Leffler and Silicon Graphics. 15 * 16 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 18 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR 21 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, 22 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 23 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 24 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 25 * OF THIS SOFTWARE. 26 */ 27 28 #ifndef _TIFFPREDICT_ 29 #define _TIFFPREDICT_ 30 /* 31 * ``Library-private'' Support for the Predictor Tag 32 */ 33 34 /* 35 * Codecs that want to support the Predictor tag must place 36 * this structure first in their private state block so that 37 * the predictor code can cast tif_data to find its state. 38 */ 39 typedef struct { 40 int predictor; /* predictor tag value */ 41 int stride; /* sample stride over data */ 42 tsize_t rowsize; /* tile/strip row size */ 43 44 TIFFPostMethod pfunc; /* horizontal differencer/accumulator */ 45 TIFFCodeMethod coderow; /* parent codec encode/decode row */ 46 TIFFCodeMethod codestrip; /* parent codec encode/decode strip */ 47 TIFFCodeMethod codetile; /* parent codec encode/decode tile */ 48 TIFFVGetMethod vgetparent; /* super-class method */ 49 TIFFVSetMethod vsetparent; /* super-class method */ 50 TIFFPrintMethod printdir; /* super-class method */ 51 TIFFBoolMethod setupdecode; /* super-class method */ 52 TIFFBoolMethod setupencode; /* super-class method */ 53 } TIFFPredictorState; 54 55 #if defined(__cplusplus) 56 extern "C" { 57 #endif 58 extern int TIFFPredictorInit(TIFF*); 59 #if defined(__cplusplus) 60 } 61 #endif 62 #endif /* _TIFFPREDICT_ */ 63 64 /* vim: set ts=8 sts=8 sw=8 noet: */ 65