148 lines
3.9 KiB
C
148 lines
3.9 KiB
C
/* $NetBSD: zconf.h,v 1.2 1997/05/20 14:42:05 gwr Exp $ */
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/* zconf.h -- configuration of the zlib compression library
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* Copyright (C) 1995-1996 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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/* from: Id: zconf.h,v 1.20 1996/07/02 15:09:28 me Exp */
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#ifndef _ZCONF_H
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#define _ZCONF_H
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/*
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* Warning: This file pollutes the user's namespace with:
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* Byte Bytef EXPORT FAR OF STDC
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* charf intf uInt uIntf uLong uLonf
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* Programs using this library appear to expect those...
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*/
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#include <sys/types.h>
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/*
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* If you *really* need a unique prefix for all types and library functions,
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* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
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*/
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#ifdef Z_PREFIX
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# define deflateInit_ z_deflateInit_
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# define deflate z_deflate
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# define deflateEnd z_deflateEnd
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# define inflateInit_ z_inflateInit_
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# define inflate z_inflate
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# define inflateEnd z_inflateEnd
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# define deflateInit2_ z_deflateInit2_
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# define deflateSetDictionary z_deflateSetDictionary
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# define deflateCopy z_deflateCopy
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# define deflateReset z_deflateReset
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# define deflateParams z_deflateParams
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# define inflateInit2_ z_inflateInit2_
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# define inflateSetDictionary z_inflateSetDictionary
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# define inflateSync z_inflateSync
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# define inflateReset z_inflateReset
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# define compress z_compress
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# define uncompress z_uncompress
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# define adler32 z_adler32
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# define crc32 z_crc32
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# define get_crc_table z_get_crc_table
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# define Byte z_Byte
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# define uInt z_uInt
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# define uLong z_uLong
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# define Bytef z_Bytef
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# define charf z_charf
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# define intf z_intf
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# define uIntf z_uIntf
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# define uLongf z_uLongf
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# define voidpf z_voidpf
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# define voidp z_voidp
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#endif
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#ifndef __32BIT__
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/* Don't be alarmed; this just means we have at least 32-bits */
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# define __32BIT__
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#endif
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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(MSDOS) && !defined(__32BIT__)
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# define MAXSEG_64K
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#endif
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#if 0
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/* XXX: Are there machines where we should define this? m68k? */
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# define UNALIGNED_OK
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#endif
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#if (defined(__STDC__) || defined(__cplusplus)) && !defined(STDC)
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/* XXX: Look out - this is used in zutil.h and elsewhere... */
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# define STDC
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#endif
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#ifndef STDC
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# ifndef const
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# define const
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# endif
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#endif
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/* Some Mac compilers merge all .h files incorrectly: */
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#if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__)
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# define NO_DUMMY_DECL
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#endif
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/* Maximum value for memLevel in deflateInit2 */
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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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/* Maximum value for windowBits in deflateInit2 and inflateInit2 */
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#ifndef MAX_WBITS
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# define MAX_WBITS 15 /* 32K LZ77 window */
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#endif
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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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/* Warts... */
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#define EXPORT
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#define FAR
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#define OF(args) __P(args)
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/* Type declarations */
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typedef unsigned char Byte; /* 8 bits */
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typedef unsigned int uInt; /* 16 bits or more */
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typedef unsigned long uLong; /* 32 bits or more */
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typedef Byte FAR Bytef;
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typedef char FAR charf;
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typedef int FAR intf;
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typedef uInt FAR uIntf;
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typedef uLong FAR uLongf;
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#ifdef STDC
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typedef void FAR *voidpf;
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typedef void *voidp;
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#else
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typedef Byte FAR *voidpf;
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typedef Byte *voidp;
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#endif
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#endif /* _ZCONF_H */
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