shithub: jbig2

ref: ef36831c93670a262622d3acad6a208d73d1d81e
dir: /jbig2dec.h/

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/*
    jbig2dec
    
    Copyright (c) 2002 artofcode LLC.
    
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
        
    $Id: jbig2dec.h,v 1.6 2002/02/19 07:09:16 giles Exp $
*/

#ifndef JBIG2DEC_H
#define JBIG2DEC_H

#ifdef __cplusplus
extern "C" {
#endif


typedef unsigned char byte;
typedef int bool;
typedef unsigned int uint32;
typedef int int32;
typedef short int16;
typedef signed char int8;

#define TRUE 1
#define FALSE 0

typedef struct _Jbig2Ctx_foo Jbig2Ctx_foo;

int32
get_bytes (Jbig2Ctx_foo *ctx, byte *buf, int size, int off);

int16
get_int16 (Jbig2Ctx_foo *ctx, int off);

int32
get_int32 (Jbig2Ctx_foo *ctx, int off);

/* The word stream design is a compromise between simplicity and
   trying to amortize the number of method calls. Each ::get_next_word
   invocation pulls 4 bytes from the stream, packed big-endian into a
   32 bit word. The offset argument is provided as a convenience. It
   begins at 0 and increments by 4 for each successive invocation. */
typedef struct _Jbig2WordStream Jbig2WordStream;

struct _Jbig2WordStream {
  uint32 (*get_next_word) (Jbig2WordStream *self, int offset);
};


#ifdef __cplusplus
}
#endif

#endif /* JBIG2DEC_H */