shithub: jbig2

ref: 3c04507a4138266c8266cc01886ca70ae8a9fa93
dir: /jbig2_generic.h/

View raw version
/*
    jbig2dec
    
    Copyright (c) 2002-2004 artofcode LLC.
    
    This software is distributed under license and may not
    be copied, modified or distributed except as expressly
    authorized under the terms of the license contained in
    the file LICENSE in this distribution.
                                                                                
    For information on commercial licensing, go to
    http://www.artifex.com/licensing/ or contact
    Artifex Software, Inc.,  101 Lucas Valley Road #110,
    San Rafael, CA  94903, U.S.A., +1(415)492-9861.
        
    $Id$
*/

/**
 * Headers for Generic and Generic Refinement region handling
 **/

/* 6.4 Table 2 */
typedef struct {
  bool MMR;
  /* GBW */
  /* GBH */
  int GBTEMPLATE;
  bool TPGDON;
  bool USESKIP;
  /* SKIP */
  int8_t gbat[8];
} Jbig2GenericRegionParams;

/* return the appropriate context size for the given template */
int
jbig2_generic_stats_size(Jbig2Ctx *ctx, int template);

int
jbig2_decode_generic_region(Jbig2Ctx *ctx,
			    Jbig2Segment *segment,
			    const Jbig2GenericRegionParams *params,
			    Jbig2ArithState *as,
			    Jbig2Image *image,
			    Jbig2ArithCx *GB_stats);


/* 6.3 Table 6 */
typedef struct {
  /* GRW */
  /* GRH */
  bool GRTEMPLATE;
  Jbig2Image *reference;
  int32_t DX, DY;
  bool TPGRON;
  int8_t grat[4];
} Jbig2RefinementRegionParams;

int
jbig2_decode_refinement_region(Jbig2Ctx *ctx,
                            Jbig2Segment *segment,
                            const Jbig2RefinementRegionParams *params,
                            Jbig2ArithState *as,
                            Jbig2Image *image,
                            Jbig2ArithCx *GB_stats);