tif_predict.h 2.8 KB

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  1. /* $Id: tif_predict.h,v 1.8 2010-03-10 18:56:49 bfriesen Exp $ */
  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. #ifndef _TIFFPREDICT_
  26. #define _TIFFPREDICT_
  27. /*
  28. * ``Library-private'' Support for the Predictor Tag
  29. */
  30. /*
  31. * Codecs that want to support the Predictor tag must place
  32. * this structure first in their private state block so that
  33. * the predictor code can cast tif_data to find its state.
  34. */
  35. typedef struct {
  36. int predictor; /* predictor tag value */
  37. tmsize_t stride; /* sample stride over data */
  38. tmsize_t rowsize; /* tile/strip row size */
  39. TIFFCodeMethod encoderow; /* parent codec encode/decode row */
  40. TIFFCodeMethod encodestrip; /* parent codec encode/decode strip */
  41. TIFFCodeMethod encodetile; /* parent codec encode/decode tile */
  42. TIFFPostMethod encodepfunc; /* horizontal differencer */
  43. TIFFCodeMethod decoderow; /* parent codec encode/decode row */
  44. TIFFCodeMethod decodestrip; /* parent codec encode/decode strip */
  45. TIFFCodeMethod decodetile; /* parent codec encode/decode tile */
  46. TIFFPostMethod decodepfunc; /* horizontal accumulator */
  47. TIFFVGetMethod vgetparent; /* super-class method */
  48. TIFFVSetMethod vsetparent; /* super-class method */
  49. TIFFPrintMethod printdir; /* super-class method */
  50. TIFFBoolMethod setupdecode; /* super-class method */
  51. TIFFBoolMethod setupencode; /* super-class method */
  52. } TIFFPredictorState;
  53. #if defined(__cplusplus)
  54. extern "C" {
  55. #endif
  56. extern int TIFFPredictorInit(TIFF*);
  57. extern int TIFFPredictorCleanup(TIFF*);
  58. #if defined(__cplusplus)
  59. }
  60. #endif
  61. #endif /* _TIFFPREDICT_ */
  62. /* vim: set ts=8 sts=8 sw=8 noet: */
  63. /*
  64. * Local Variables:
  65. * mode: c
  66. * c-basic-offset: 8
  67. * fill-column: 78
  68. * End:
  69. */