196 lines
5.1 KiB
C
196 lines
5.1 KiB
C
|
/* zconf.h -- configuration of the zlib compression library
|
||
|
|
* Copyright (C) 1995-2016 Jean-loup Gailly, Mark Adler
|
||
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef ZCONF_H
|
||
|
|
#define ZCONF_H
|
||
|
|
|
||
|
|
#include "zlib_name_mangling.h"
|
||
|
|
|
||
|
|
#if !defined(_WIN32) && defined(__WIN32__)
|
||
|
|
# define _WIN32
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Clang macro for detecting declspec support
|
||
|
|
* https://clang.llvm.org/docs/LanguageExtensions.html#has-declspec-attribute
|
||
|
|
*/
|
||
|
|
#ifndef __has_declspec_attribute
|
||
|
|
# define __has_declspec_attribute(x) 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(ZLIB_CONST) && !defined(z_const)
|
||
|
|
# define z_const const
|
||
|
|
#else
|
||
|
|
# define z_const
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Maximum value for memLevel in deflateInit2 */
|
||
|
|
#ifndef MAX_MEM_LEVEL
|
||
|
|
# define MAX_MEM_LEVEL 9
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Maximum value for windowBits in deflateInit2 and inflateInit2.
|
||
|
|
* WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
|
||
|
|
* created by gzip. (Files created by minigzip can still be extracted by
|
||
|
|
* gzip.)
|
||
|
|
*/
|
||
|
|
#ifndef MAX_WBITS
|
||
|
|
# define MAX_WBITS 15 /* 32K LZ77 window */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* The memory requirements for deflate are (in bytes):
|
||
|
|
(1 << (windowBits+2)) + (1 << (memLevel+9))
|
||
|
|
that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values)
|
||
|
|
plus a few kilobytes for small objects. For example, if you want to reduce
|
||
|
|
the default memory requirements from 256K to 128K, compile with
|
||
|
|
make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
|
||
|
|
Of course this will generally degrade compression (there's no free lunch).
|
||
|
|
|
||
|
|
The memory requirements for inflate are (in bytes) 1 << windowBits
|
||
|
|
that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
|
||
|
|
for small objects.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Type declarations */
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef OF /* function prototypes */
|
||
|
|
# define OF(args) args
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef ZLIB_INTERNAL
|
||
|
|
# define Z_INTERNAL ZLIB_INTERNAL
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* If building or using zlib as a DLL, define ZLIB_DLL.
|
||
|
|
* This is not mandatory, but it offers a little performance increase.
|
||
|
|
*/
|
||
|
|
#if defined(ZLIB_DLL) && (defined(_WIN32) || (__has_declspec_attribute(dllexport) && __has_declspec_attribute(dllimport)))
|
||
|
|
# ifdef Z_INTERNAL
|
||
|
|
# define Z_EXTERN extern __declspec(dllexport)
|
||
|
|
# else
|
||
|
|
# define Z_EXTERN extern __declspec(dllimport)
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* If building or using zlib with the WINAPI/WINAPIV calling convention,
|
||
|
|
* define ZLIB_WINAPI.
|
||
|
|
* Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
|
||
|
|
*/
|
||
|
|
#if defined(ZLIB_WINAPI) && defined(_WIN32)
|
||
|
|
# include <windows.h>
|
||
|
|
/* No need for _export, use ZLIB.DEF instead. */
|
||
|
|
/* For complete Windows compatibility, use WINAPI, not __stdcall. */
|
||
|
|
# define Z_EXPORT WINAPI
|
||
|
|
# define Z_EXPORTVA WINAPIV
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef Z_EXTERN
|
||
|
|
# define Z_EXTERN extern
|
||
|
|
#endif
|
||
|
|
#ifndef Z_EXPORT
|
||
|
|
# define Z_EXPORT
|
||
|
|
#endif
|
||
|
|
#ifndef Z_EXPORTVA
|
||
|
|
# define Z_EXPORTVA
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Conditional exports */
|
||
|
|
#define ZNG_CONDEXPORT Z_INTERNAL
|
||
|
|
|
||
|
|
/* For backwards compatibility */
|
||
|
|
|
||
|
|
#ifndef ZEXTERN
|
||
|
|
# define ZEXTERN Z_EXTERN
|
||
|
|
#endif
|
||
|
|
#ifndef ZEXPORT
|
||
|
|
# define ZEXPORT Z_EXPORT
|
||
|
|
#endif
|
||
|
|
#ifndef ZEXPORTVA
|
||
|
|
# define ZEXPORTVA Z_EXPORTVA
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* Fallback for something that includes us. */
|
||
|
|
typedef unsigned char Byte;
|
||
|
|
typedef Byte Bytef;
|
||
|
|
|
||
|
|
typedef unsigned int uInt; /* 16 bits or more */
|
||
|
|
typedef unsigned long uLong; /* 32 bits or more */
|
||
|
|
|
||
|
|
typedef char charf;
|
||
|
|
typedef int intf;
|
||
|
|
typedef uInt uIntf;
|
||
|
|
typedef uLong uLongf;
|
||
|
|
|
||
|
|
typedef void const *voidpc;
|
||
|
|
typedef void *voidpf;
|
||
|
|
typedef void *voidp;
|
||
|
|
|
||
|
|
typedef uint32_t z_crc_t;
|
||
|
|
|
||
|
|
#if 0 /* was set to #if 0 by configure/cmake/etc */
|
||
|
|
# define Z_HAVE_UNISTD_H
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef NEED_PTRDIFF_T /* may be set to #if 1 by configure/cmake/etc */
|
||
|
|
typedef PTRDIFF_TYPE ptrdiff_t;
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <sys/types.h> /* for off_t */
|
||
|
|
|
||
|
|
#include <stddef.h> /* for wchar_t and NULL */
|
||
|
|
|
||
|
|
/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
|
||
|
|
* "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
|
||
|
|
* though the former does not conform to the LFS document), but considering
|
||
|
|
* both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
|
||
|
|
* equivalently requesting no 64-bit operations
|
||
|
|
*/
|
||
|
|
#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
|
||
|
|
# undef _LARGEFILE64_SOURCE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
|
||
|
|
# include <unistd.h> /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
|
||
|
|
# ifndef z_off_t
|
||
|
|
# define z_off_t off_t
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
|
||
|
|
# define Z_LFS64
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
|
||
|
|
# define Z_LARGE64
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
|
||
|
|
# define Z_WANT64
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(SEEK_SET)
|
||
|
|
# define SEEK_SET 0 /* Seek from beginning of file. */
|
||
|
|
# define SEEK_CUR 1 /* Seek from current position. */
|
||
|
|
# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef z_off_t
|
||
|
|
# define z_off_t long
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#if !defined(_WIN32) && defined(Z_LARGE64)
|
||
|
|
# define z_off64_t off64_t
|
||
|
|
#else
|
||
|
|
# if defined(__MSYS__)
|
||
|
|
# define z_off64_t _off64_t
|
||
|
|
# elif defined(_WIN32) && !defined(__GNUC__)
|
||
|
|
# define z_off64_t __int64
|
||
|
|
# else
|
||
|
|
# define z_off64_t z_off_t
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* ZCONF_H */
|