alpar@9: /* zutil.h (internal interface of the zlib compression library) */
alpar@9: 
alpar@9: /* Modified by Andrew Makhorin <mao@gnu.org>, April 2011 */
alpar@9: 
alpar@9: /* Copyright (C) 1995-2010 Jean-loup Gailly
alpar@9:  * For conditions of distribution and use, see copyright notice in
alpar@9:  * zlib.h */
alpar@9: 
alpar@9: /* WARNING: this file should *not* be used by applications. It is
alpar@9:    part of the implementation of the compression library and is
alpar@9:    subject to change. Applications should only use zlib.h. */
alpar@9: 
alpar@9: #ifndef ZUTIL_H
alpar@9: #define ZUTIL_H
alpar@9: 
alpar@9: #define ZLIB_INTERNAL
alpar@9: 
alpar@9: #include "zlib.h"
alpar@9: 
alpar@9: #include <stddef.h>
alpar@9: #include <string.h>
alpar@9: #include <stdlib.h>
alpar@9: 
alpar@9: #define local static
alpar@9: 
alpar@9: typedef unsigned char uch;
alpar@9: typedef uch uchf;
alpar@9: typedef unsigned short ush;
alpar@9: typedef ush ushf;
alpar@9: typedef unsigned long ulg;
alpar@9: 
alpar@9: extern const char * const z_errmsg[10];
alpar@9: 
alpar@9: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
alpar@9: 
alpar@9: #define ERR_RETURN(strm, err) \
alpar@9:       return (strm->msg = (char *)ERR_MSG(err), (err))
alpar@9: 
alpar@9: #define DEF_WBITS MAX_WBITS
alpar@9: 
alpar@9: #if MAX_MEM_LEVEL >= 8
alpar@9: #define DEF_MEM_LEVEL 8
alpar@9: #else
alpar@9: #define DEF_MEM_LEVEL MAX_MEM_LEVEL
alpar@9: #endif
alpar@9: 
alpar@9: #define STORED_BLOCK 0
alpar@9: #define STATIC_TREES 1
alpar@9: #define DYN_TREES    2
alpar@9: 
alpar@9: #define MIN_MATCH 3
alpar@9: #define MAX_MATCH 258
alpar@9: 
alpar@9: #define PRESET_DICT 0x20
alpar@9: 
alpar@9: #define OS_CODE 0x03 /* assume Unix */
alpar@9: 
alpar@9: #define HAVE_MEMCPY 1
alpar@9: #define zmemcpy memcpy
alpar@9: #define zmemzero(dest, len) memset(dest, 0, len)
alpar@9: 
alpar@9: #ifdef DEBUG
alpar@9: #include <stdio.h>
alpar@9: extern int ZLIB_INTERNAL z_verbose;
alpar@9: extern void ZLIB_INTERNAL z_error OF((char *m));
alpar@9: #define Assert(cond, msg) { if(!(cond)) z_error(msg); }
alpar@9: #define Trace(x) { if (z_verbose >= 0) fprintf x; }
alpar@9: #define Tracev(x) { if (z_verbose > 0) fprintf x; }
alpar@9: #define Tracevv(x) {if (z_verbose > 1) fprintf x; }
alpar@9: #define Tracec(c, x) {if (z_verbose > 0 && (c)) fprintf x; }
alpar@9: #define Tracecv(c, x) {if (z_verbose > 1 && (c)) fprintf x; }
alpar@9: #else
alpar@9: #define Assert(cond, msg)
alpar@9: #define Trace(x)
alpar@9: #define Tracev(x)
alpar@9: #define Tracevv(x)
alpar@9: #define Tracec(c, x)
alpar@9: #define Tracecv(c, x)
alpar@9: #endif
alpar@9: 
alpar@9: voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
alpar@9:       unsigned size));
alpar@9: void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
alpar@9: 
alpar@9: #define ZALLOC(strm, items, size) \
alpar@9:       (*((strm)->zalloc))((strm)->opaque, (items), (size))
alpar@9: #define ZFREE(strm, addr) \
alpar@9:       (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
alpar@9: #define TRY_FREE(s, p) { if (p) ZFREE(s, p); }
alpar@9: 
alpar@9: #endif
alpar@9: 
alpar@9: /* eof */