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typedef struct fz_filter_s fz_filter;
typedef struct fz_buffer_s fz_buffer;
#define FZ_BUFSIZE (32 * 1024)
#define fz_ioneedin (&fz_kioneedin)
#define fz_ioneedout (&fz_kioneedout)
#define fz_iodone (&fz_kiodone)
extern fz_error fz_kioneedin;
extern fz_error fz_kioneedout;
extern fz_error fz_kiodone;
#define FZ_NEWFILTER(TYPE,VAR,NAME) \
fz_error * fz_process ## NAME (fz_filter*,fz_buffer*,fz_buffer*); \
void fz_drop ## NAME (fz_filter*); \
TYPE *VAR; \
*fp = fz_malloc(sizeof(TYPE)); \
if (!*fp) return fz_outofmem; \
(*fp)->refs = 1; \
(*fp)->process = fz_process ## NAME ; \
(*fp)->drop = fz_drop ## NAME ; \
(*fp)->consumed = 0; \
(*fp)->produced = 0; \
(*fp)->count = 0; \
VAR = (TYPE*) *fp
struct fz_filter_s
{
int refs;
fz_error* (*process)(fz_filter *filter, fz_buffer *in, fz_buffer *out);
void (*drop)(fz_filter *filter);
int consumed;
int produced;
int count;
};
struct fz_buffer_s
{
int refs;
int ownsdata;
unsigned char *bp;
unsigned char *rp;
unsigned char *wp;
unsigned char *ep;
int eof;
};
fz_error *fz_process(fz_filter *f, fz_buffer *in, fz_buffer *out);
fz_filter *fz_keepfilter(fz_filter *f);
void fz_dropfilter(fz_filter *f);
fz_error *fz_newnullfilter(fz_filter **fp, int len);
fz_error *fz_newarc4filter(fz_filter **fp, unsigned char *key, unsigned keylen);
fz_error *fz_newpipeline(fz_filter **fp, fz_filter *head, fz_filter *tail);
fz_error *fz_chainpipeline(fz_filter **fp, fz_filter *head, fz_filter *tail, fz_buffer *buf);
void fz_unchainpipeline(fz_filter *pipe, fz_filter **oldfp, fz_buffer **oldbp);
fz_error *fz_newbuffer(fz_buffer **bufp, int size);
fz_error *fz_newbufferwithdata(fz_buffer **bufp, unsigned char *data, int size);
fz_error *fz_rewindbuffer(fz_buffer *buf);
fz_error *fz_growbuffer(fz_buffer *buf);
fz_buffer *fz_keepbuffer(fz_buffer *buf);
void fz_dropbuffer(fz_buffer *buf);
fz_error *fz_newa85d(fz_filter **filterp, fz_obj *param);
fz_error *fz_newa85e(fz_filter **filterp, fz_obj *param);
fz_error *fz_newahxd(fz_filter **filterp, fz_obj *param);
fz_error *fz_newahxe(fz_filter **filterp, fz_obj *param);
fz_error *fz_newrld(fz_filter **filterp, fz_obj *param);
fz_error *fz_newrle(fz_filter **filterp, fz_obj *param);
fz_error *fz_newdctd(fz_filter **filterp, fz_obj *param);
fz_error *fz_newdcte(fz_filter **filterp, fz_obj *param);
fz_error *fz_newfaxd(fz_filter **filterp, fz_obj *param);
fz_error *fz_newfaxe(fz_filter **filterp, fz_obj *param);
fz_error *fz_newflated(fz_filter **filterp, fz_obj *param);
fz_error *fz_newflatee(fz_filter **filterp, fz_obj *param);
fz_error *fz_newlzwd(fz_filter **filterp, fz_obj *param);
fz_error *fz_newlzwe(fz_filter **filterp, fz_obj *param);
fz_error *fz_newpredictd(fz_filter **filterp, fz_obj *param);
fz_error *fz_newpredicte(fz_filter **filterp, fz_obj *param);
fz_error *fz_newjbig2d(fz_filter **filterp, fz_obj *param);
fz_error *fz_newjpxd(fz_filter **filterp, fz_obj *param);
void fz_pushbackahxd(fz_filter *filter, fz_buffer *in, fz_buffer *out, int n);
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