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/*
TiMidity++ -- MIDI to WAVE converter and player
Copyright (C) 1999,2000 Masanao Izumo <mo@goice.co.jp>
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef ___ZIP_H_
#define ___ZIP_H_
/* zip.h -- common declarations for deflate/inflate routine */
#define INBUF_EXTRA 64
#define OUTBUF_EXTRA 2048
#ifdef SMALL_MEM
# define INBUFSIZ 8192 /* input buffer size */
# define OUTBUFSIZ 8192 /* output buffer size */
#else
# define INBUFSIZ 32768 /* input buffer size */
# define OUTBUFSIZ 16384 /* output buffer size */
#endif
typedef unsigned char uch;
typedef unsigned short ush;
typedef unsigned long ulg;
/* Huffman code lookup table entry--this entry is four bytes for machines
that have 16-bit pointers (e.g. PC's in the small or medium model).
Valid extra bits are 0..13. e == 15 is EOB (end of block), e == 16
means that v is a literal, 16 < e < 32 means that v is a pointer to
the next table, which codes e - 16 bits, and lastly e == 99 indicates
an unused code. If a code with e == 99 is looked up, this implies an
error in the data. */
struct huft {
uch e; /* number of extra bits or operation */
uch b; /* number of bits in this code or subcode */
union {
ush n; /* literal, length base, or distance base */
struct huft *t; /* pointer to next level of table */
} v;
};
int huft_build(unsigned *, unsigned, unsigned, ush *, ush *,
struct huft **, int *, MBlockList *pool);
#define STORED_BLOCK 0
#define STATIC_TREES 1
#define DYN_TREES 2
/* The three kinds of block type */
#define WSIZE 32768 /* window size--must be a power of two, and */
/* at least 32K for zip's deflate method */
/* Diagnostic functions */
#ifdef DEBUG
# define Trace(x) fprintf x
# define Tracev(x) {fprintf x ;}
# define Tracevv(x) {fprintf x ;}
# define Tracec(c,x) {fprintf x ;}
# define Tracecv(c,x) {fprintf x ;}
#else
# define Trace(x)
# define Tracev(x)
# define Tracevv(x)
# define Tracec(c,x)
# define Tracecv(c,x)
#endif
#define near
typedef struct _InflateHandler *InflateHandler;
typedef struct _DeflateHandler *DeflateHandler;
/*****************************************************************/
/* INTERFACE FUNCTIONS */
/*****************************************************************/
/* in deflate.c */
extern DeflateHandler open_deflate_handler(
long (* read_func)(char *buf, long size, void *user_val),
void *user_val,
int compression_level);
extern long zip_deflate(DeflateHandler encoder,
char *decode_buff,
long decode_buff_size);
extern void close_deflate_handler(DeflateHandler encoder);
/* in inflate.c */
extern InflateHandler open_inflate_handler(
long (* read_func)(char *buf, long size, void *user_val),
void *user_val);
extern long zip_inflate(InflateHandler decoder,
char *decode_buff,
long decode_buff_size);
extern void close_inflate_handler(InflateHandler decoder);
#endif /* ___ZIP_H_ */
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