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  1. /*
  2.     jbig2dec
  3.  
  4.     Copyright (C) 2002-2004 Artifex Software, Inc.
  5.  
  6.     This software is distributed under license and may not
  7.     be copied, modified or distributed except as expressly
  8.     authorized under the terms of the license contained in
  9.     the file LICENSE in this distribution.
  10.  
  11.     For further licensing information refer to http://artifex.com/ or
  12.     contact Artifex Software, Inc., 7 Mt. Lassen Drive - Suite A-134,
  13.     San Rafael, CA  94903, U.S.A., +1(415)492-9861.
  14. */
  15.  
  16. /**
  17.  * Headers for Generic and Generic Refinement region handling
  18.  **/
  19.  
  20. /* 6.4 Table 2 */
  21. typedef struct {
  22.   bool MMR;
  23.   /* GBW */
  24.   /* GBH */
  25.   int GBTEMPLATE;
  26.   bool TPGDON;
  27.   bool USESKIP;
  28.   /* SKIP */
  29.   int8_t gbat[8];
  30. } Jbig2GenericRegionParams;
  31.  
  32. /* return the appropriate context size for the given template */
  33. int
  34. jbig2_generic_stats_size(Jbig2Ctx *ctx, int template);
  35.  
  36. int
  37. jbig2_decode_generic_region(Jbig2Ctx *ctx,
  38.                             Jbig2Segment *segment,
  39.                             const Jbig2GenericRegionParams *params,
  40.                             Jbig2ArithState *as,
  41.                             Jbig2Image *image,
  42.                             Jbig2ArithCx *GB_stats);
  43.  
  44.  
  45. /* 6.3 Table 6 */
  46. typedef struct {
  47.   /* GRW */
  48.   /* GRH */
  49.   bool GRTEMPLATE;
  50.   Jbig2Image *reference;
  51.   int32_t DX, DY;
  52.   bool TPGRON;
  53.   int8_t grat[4];
  54. } Jbig2RefinementRegionParams;
  55.  
  56. int
  57. jbig2_decode_refinement_region(Jbig2Ctx *ctx,
  58.                             Jbig2Segment *segment,
  59.                             const Jbig2RefinementRegionParams *params,
  60.                             Jbig2ArithState *as,
  61.                             Jbig2Image *image,
  62.                             Jbig2ArithCx *GB_stats);
  63.