tif_predict.h
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/*
* 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_
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#include "tiffio.h"
#include "tiffiop.h"
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/*
* ``Library-private'' Support for the Predictor Tag
*/
typedef int (*TIFFEncodeDecodeMethod)(TIFF* tif, uint8* 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_ */
/* vim: set ts=8 sts=8 sw=8 noet: */
/*
* Local Variables:
* mode: c
* c-basic-offset: 8
* fill-column: 78
* End:
*/