mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
206 lines
5.4 KiB
206 lines
5.4 KiB
/* 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 MIN_WBITS |
|
# define MIN_WBITS 8 /* 256 LZ77 window */ |
|
#endif |
|
#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) |
|
# ifndef WIN32_LEAN_AND_MEAN |
|
# define WIN32_LEAN_AND_MEAN |
|
# endif |
|
# 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 |
|
#ifndef FAR |
|
# define FAR |
|
#endif |
|
|
|
/* Legacy zlib typedefs for backwards compatibility. Don't assume stdint.h is defined. */ |
|
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 unsigned int z_crc_t; |
|
|
|
#ifdef HAVE_UNISTD_H /* may be set to #if 1 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 |
|
|
|
typedef size_t z_size_t; |
|
|
|
#endif /* ZCONF_H */
|
|
|