mirror of
https://github.com/opencv/opencv.git
synced 2024-12-03 00:10:21 +08:00
85923c8f30
Update zlib-ng to 2.2.1 #26113 Release: https://github.com/zlib-ng/zlib-ng/releases/tag/2.2.1 ARM diagnostics patch: https://github.com/zlib-ng/zlib-ng/pull/1774 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
141 lines
3.8 KiB
C
141 lines
3.8 KiB
C
#ifndef ZUTIL_H_
|
|
#define ZUTIL_H_
|
|
/* zutil.h -- internal interface and configuration of the compression library
|
|
* Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
|
*/
|
|
|
|
/* WARNING: this file should *not* be used by applications. It is
|
|
part of the implementation of the compression library and is
|
|
subject to change. Applications should only use zlib.h.
|
|
*/
|
|
|
|
#include "zbuild.h"
|
|
#ifdef ZLIB_COMPAT
|
|
# include "zlib.h"
|
|
#else
|
|
# include "zlib-ng.h"
|
|
#endif
|
|
|
|
typedef unsigned char uch; /* Included for compatibility with external code only */
|
|
typedef uint16_t ush; /* Included for compatibility with external code only */
|
|
typedef unsigned long ulg;
|
|
|
|
extern z_const char * const PREFIX(z_errmsg)[10]; /* indexed by 2-zlib_error */
|
|
/* (size given to avoid silly warnings with Visual C++) */
|
|
|
|
#define ERR_MSG(err) PREFIX(z_errmsg)[(err) < -6 || (err) > 2 ? 9 : 2 - (err)]
|
|
|
|
#define ERR_RETURN(strm, err) return (strm->msg = ERR_MSG(err), (err))
|
|
/* To be used only when the state is known to be valid */
|
|
|
|
/* common constants */
|
|
|
|
#ifndef DEF_WBITS
|
|
# define DEF_WBITS MAX_WBITS
|
|
#endif
|
|
/* default windowBits for decompression. MAX_WBITS is for compression only */
|
|
|
|
#define MAX_BITS 15
|
|
/* all codes must not exceed MAX_BITS bits */
|
|
#define MAX_DIST_EXTRA_BITS 13
|
|
/* maximum number of extra distance bits */
|
|
|
|
#if MAX_MEM_LEVEL >= 8
|
|
# define DEF_MEM_LEVEL 8
|
|
#else
|
|
# define DEF_MEM_LEVEL MAX_MEM_LEVEL
|
|
#endif
|
|
/* default memLevel */
|
|
|
|
#define STORED_BLOCK 0
|
|
#define STATIC_TREES 1
|
|
#define DYN_TREES 2
|
|
/* The three kinds of block type */
|
|
|
|
#define STD_MIN_MATCH 3
|
|
#define STD_MAX_MATCH 258
|
|
/* The minimum and maximum match lengths mandated by the deflate standard */
|
|
|
|
#define WANT_MIN_MATCH 4
|
|
/* The minimum wanted match length, affects deflate_quick, deflate_fast, deflate_medium and deflate_slow */
|
|
|
|
#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
|
|
|
|
#define ADLER32_INITIAL_VALUE 1 /* initial adler-32 hash value */
|
|
#define CRC32_INITIAL_VALUE 0 /* initial crc-32 hash value */
|
|
|
|
#define ZLIB_WRAPLEN 6 /* zlib format overhead */
|
|
#define GZIP_WRAPLEN 18 /* gzip format overhead */
|
|
|
|
#define DEFLATE_HEADER_BITS 3
|
|
#define DEFLATE_EOBS_BITS 15
|
|
#define DEFLATE_PAD_BITS 6
|
|
#define DEFLATE_BLOCK_OVERHEAD ((DEFLATE_HEADER_BITS + DEFLATE_EOBS_BITS + DEFLATE_PAD_BITS) >> 3)
|
|
/* deflate block overhead: 3 bits for block start + 15 bits for block end + padding to nearest byte */
|
|
|
|
#define DEFLATE_QUICK_LIT_MAX_BITS 9
|
|
#define DEFLATE_QUICK_OVERHEAD(x) ((x * (DEFLATE_QUICK_LIT_MAX_BITS - 8) + 7) >> 3)
|
|
/* deflate_quick worst-case overhead: 9 bits per literal, round up to next byte (+7) */
|
|
|
|
|
|
/* target dependencies */
|
|
|
|
#ifdef AMIGA
|
|
# define OS_CODE 1
|
|
#endif
|
|
|
|
#ifdef __370__
|
|
# if __TARGET_LIB__ < 0x20000000
|
|
# define OS_CODE 4
|
|
# elif __TARGET_LIB__ < 0x40000000
|
|
# define OS_CODE 11
|
|
# else
|
|
# define OS_CODE 8
|
|
# endif
|
|
#endif
|
|
|
|
#if defined(ATARI) || defined(atarist)
|
|
# define OS_CODE 5
|
|
#endif
|
|
|
|
#ifdef OS2
|
|
# define OS_CODE 6
|
|
#endif
|
|
|
|
#if defined(MACOS)
|
|
# define OS_CODE 7
|
|
#endif
|
|
|
|
#ifdef __acorn
|
|
# define OS_CODE 13
|
|
#endif
|
|
|
|
#if defined(_WIN32) && !defined(__CYGWIN__)
|
|
# define OS_CODE 10
|
|
#endif
|
|
|
|
#ifdef __APPLE__
|
|
# define OS_CODE 19
|
|
#endif
|
|
|
|
/* common defaults */
|
|
|
|
#ifndef OS_CODE
|
|
# define OS_CODE 3 /* assume Unix */
|
|
#endif
|
|
|
|
/* macros */
|
|
|
|
#define CHECK_VER_STSIZE(_ver,_stsize) ((_ver) == NULL || (_ver)[0] != PREFIX2(VERSION)[0] || (_stsize) != (int32_t)sizeof(PREFIX3(stream)))
|
|
|
|
/* memory allocation functions */
|
|
|
|
void Z_INTERNAL *PREFIX(zcalloc)(void *opaque, unsigned items, unsigned size);
|
|
void Z_INTERNAL PREFIX(zcfree)(void *opaque, void *ptr);
|
|
|
|
typedef void *zng_calloc_func(void *opaque, unsigned items, unsigned size);
|
|
typedef void zng_cfree_func(void *opaque, void *ptr);
|
|
|
|
#endif /* ZUTIL_H_ */
|