src/tiff/libtiff/tif_predict.h

   1
   2 /*
   3  * Copyright (c) 1995-1997 Sam Leffler
   4  * Copyright (c) 1995-1997 Silicon Graphics, Inc.
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and
   7  * its documentation for any purpose is hereby granted without fee, provided
   8  * that (i) the above copyright notices and this permission notice appear in
   9  * all copies of the software and related documentation, and (ii) the names of
  10  * Sam Leffler and Silicon Graphics may not be used in any advertising or
  11  * publicity relating to the software without the specific, prior written
  12  * permission of Sam Leffler and Silicon Graphics.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
  15  * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
  16  * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
  17  *
  18  * IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
  19  * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
  20  * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  21  * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
  22  * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  23  * OF THIS SOFTWARE.
  24  */
  25
  26 #ifndef _TIFFPREDICT_
  27 #define _TIFFPREDICT_
  28 /*
  29  * ``Library-private'' Support for the Predictor Tag
  30  */
  31
  32 /*
  33  * Codecs that want to support the Predictor tag must place
  34  * this structure first in their private state block so that
  35  * the predictor code can cast tif_data to find its state.
  36  */
  37 typedef struct {
  38         int             predictor;      /* predictor tag value */
  39         tmsize_t        stride;         /* sample stride over data */
  40         tmsize_t        rowsize;        /* tile/strip row size */
  41
  42         TIFFCodeMethod  encoderow;      /* parent codec encode/decode row */
  43         TIFFCodeMethod  encodestrip;    /* parent codec encode/decode strip */
  44         TIFFCodeMethod  encodetile;     /* parent codec encode/decode tile */
  45         TIFFPostMethod  encodepfunc;    /* horizontal differencer */
  46
  47         TIFFCodeMethod  decoderow;      /* parent codec encode/decode row */
  48         TIFFCodeMethod  decodestrip;    /* parent codec encode/decode strip */
  49         TIFFCodeMethod  decodetile;     /* parent codec encode/decode tile */
  50         TIFFPostMethod  decodepfunc;    /* horizontal accumulator */
  51
  52         TIFFVGetMethod  vgetparent;     /* super-class method */
  53         TIFFVSetMethod  vsetparent;     /* super-class method */
  54         TIFFPrintMethod printdir;       /* super-class method */
  55         TIFFBoolMethod  setupdecode;    /* super-class method */
  56         TIFFBoolMethod  setupencode;    /* super-class method */
  57 } TIFFPredictorState;
  58
  59 #if defined(__cplusplus)
  60 extern "C" {
  61 #endif
  62 extern int TIFFPredictorInit(TIFF*);
  63 extern int TIFFPredictorCleanup(TIFF*);
  64 #if defined(__cplusplus)
  65 }
  66 #endif
  67 #endif /* _TIFFPREDICT_ */
  68
  69 /* vim: set ts=8 sts=8 sw=8 noet: */
  70 /*
  71  * Local Variables:
  72  * mode: c
  73  * c-basic-offset: 8
  74  * fill-column: 78
  75  * End:
  76  */