2011-09-10 01:36:31 -04:00
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/* zconf.h -- configuration of the zlib compression library
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* Copyright (C) 1995 Jean-loup Gailly.
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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2011-09-10 02:08:07 -04:00
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/* $Id: zconf.h,v 1.12 1995/05/03 17:27:12 jloup Exp $ */
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2011-09-10 01:36:31 -04:00
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#ifndef _ZCONF_H
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#define _ZCONF_H
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/*
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The library does not install any signal handler. It is recommended to
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add at least a handler for SIGSEGV when decompressing; the library checks
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the consistency of the input data whenever possible but may go nuts
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for some forms of corrupted input.
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*/
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/*
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* Compile with -DMAXSEG_64K if the alloc function cannot allocate more
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* than 64k bytes at a time (needed on systems with 16-bit int).
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*/
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#if defined(_GNUC__) && !defined(__32BIT__)
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# define __32BIT__
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#endif
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#if defined(__MSDOS__) && !defined(MSDOS)
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# define MSDOS
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#endif
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#if defined(MSDOS) && !defined(__32BIT__)
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# define MAXSEG_64K
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#endif
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2011-09-10 02:03:14 -04:00
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#if !defined(STDC) && (defined(MSDOS) || defined(__STDC__))
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# define STDC
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#endif
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2011-09-10 01:36:31 -04:00
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2011-09-10 02:07:35 -04:00
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/* Maximum value for memLevel in deflateInit2 */
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2011-09-10 02:06:52 -04:00
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#ifndef MAX_MEM_LEVEL
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# ifdef MAXSEG_64K
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# define MAX_MEM_LEVEL 8
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# else
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# define MAX_MEM_LEVEL 9
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# endif
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#endif
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2011-09-10 02:07:35 -04:00
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/* Maximum value for windowBits in deflateInit2 and inflateInit2 */
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2011-09-10 02:06:52 -04:00
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#ifndef MAX_WBITS
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# define MAX_WBITS 15 /* 32K LZ77 window */
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2011-09-10 01:36:31 -04:00
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#endif
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2011-09-10 02:07:35 -04:00
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/* The memory requirements for deflate are (in bytes):
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1 << (windowBits+2) + 1 << (memLevel+9)
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that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
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plus a few kilobytes for small objects. For example, if you want to reduce
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the default memory requirements from 256K to 128K, compile with
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make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
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Of course this will generally degrade compression (there's no free lunch).
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The memory requirements for inflate are (in bytes) 1 << windowBits
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that is, 32K for windowBits=15 (default value) plus a few kilobytes
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for small objects.
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*/
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2011-09-10 02:08:07 -04:00
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/* Type declarations */
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2011-09-10 01:36:31 -04:00
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#ifndef __P /* function prototypes */
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2011-09-10 02:03:14 -04:00
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# ifdef STDC
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2011-09-10 01:36:31 -04:00
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# define __P(args) args
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# else
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# define __P(args) ()
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# endif
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#endif
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#ifndef Byte
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typedef unsigned char Byte; /* 8 bits */
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#endif
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#ifndef uInt
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2011-09-10 02:06:52 -04:00
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typedef unsigned int uInt; /* 16 bits or more */
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2011-09-10 01:36:31 -04:00
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#endif
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#ifndef uLong
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typedef unsigned long uLong; /* 32 bits or more */
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#endif
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#ifndef voidp
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2011-09-10 02:03:14 -04:00
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# ifdef STDC
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2011-09-10 01:36:31 -04:00
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typedef void *voidp;
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# else
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typedef Byte *voidp;
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# endif
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#endif
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#endif /* _ZCONF_H */
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