mirror of
https://github.com/opencv/opencv.git
synced 2024-12-15 18:09:11 +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
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
#ifndef CRC32_BRAID_P_H_
|
|
#define CRC32_BRAID_P_H_
|
|
|
|
#include "zendian.h"
|
|
|
|
/* Define N */
|
|
#ifdef Z_TESTN
|
|
# define N Z_TESTN
|
|
#else
|
|
# define N 5
|
|
#endif
|
|
#if N < 1 || N > 6
|
|
# error N must be in 1..6
|
|
#endif
|
|
|
|
/*
|
|
Define W and the associated z_word_t type. If W is not defined, then a
|
|
braided calculation is not used, and the associated tables and code are not
|
|
compiled.
|
|
*/
|
|
#ifdef Z_TESTW
|
|
# if Z_TESTW-1 != -1
|
|
# define W Z_TESTW
|
|
# endif
|
|
#else
|
|
# ifndef W
|
|
# if defined(__x86_64__) || defined(_M_AMD64) || defined(__aarch64__) || defined(_M_ARM64) || defined(__powerpc64__)
|
|
# define W 8
|
|
# else
|
|
# define W 4
|
|
# endif
|
|
# endif
|
|
#endif
|
|
#ifdef W
|
|
# if W == 8
|
|
typedef uint64_t z_word_t;
|
|
# else
|
|
# undef W
|
|
# define W 4
|
|
typedef uint32_t z_word_t;
|
|
# endif
|
|
#endif
|
|
|
|
#if BYTE_ORDER == LITTLE_ENDIAN
|
|
# define ZSWAPWORD(word) (word)
|
|
# define BRAID_TABLE crc_braid_table
|
|
#elif BYTE_ORDER == BIG_ENDIAN
|
|
# if W == 8
|
|
# define ZSWAPWORD(word) ZSWAP64(word)
|
|
# elif W == 4
|
|
# define ZSWAPWORD(word) ZSWAP32(word)
|
|
# endif
|
|
# define BRAID_TABLE crc_braid_big_table
|
|
#else
|
|
# error "No endian defined"
|
|
#endif
|
|
|
|
#define DO1 c = crc_table[(c ^ *buf++) & 0xff] ^ (c >> 8)
|
|
#define DO8 DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
|
|
|
|
/* CRC polynomial. */
|
|
#define POLY 0xedb88320 /* p(x) reflected, with x^32 implied */
|
|
|
|
#endif /* CRC32_BRAID_P_H_ */
|