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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
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
/* crc32.c -- compute the CRC-32 of a data stream
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* Copyright (C) 1995-2022 Mark Adler
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* For conditions of distribution and use, see copyright notice in zlib.h
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*
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* This interleaved implementation of a CRC makes use of pipelined multiple
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* arithmetic-logic units, commonly found in modern CPU cores. It is due to
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* Kadatch and Jenkins (2010). See doc/crc-doc.1.0.pdf in this distribution.
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*/
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#include "zbuild.h"
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#include "functable.h"
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#include "crc32_braid_tbl.h"
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/* ========================================================================= */
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const uint32_t * Z_EXPORT PREFIX(get_crc_table)(void) {
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return (const uint32_t *)crc_table;
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}
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#ifdef ZLIB_COMPAT
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unsigned long Z_EXPORT PREFIX(crc32_z)(unsigned long crc, const unsigned char *buf, size_t len) {
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if (buf == NULL) return 0;
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return (unsigned long)FUNCTABLE_CALL(crc32)((uint32_t)crc, buf, len);
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}
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#else
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uint32_t Z_EXPORT PREFIX(crc32_z)(uint32_t crc, const unsigned char *buf, size_t len) {
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if (buf == NULL) return 0;
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return FUNCTABLE_CALL(crc32)(crc, buf, len);
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}
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#endif
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#ifdef ZLIB_COMPAT
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unsigned long Z_EXPORT PREFIX(crc32)(unsigned long crc, const unsigned char *buf, unsigned int len) {
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return (unsigned long)PREFIX(crc32_z)((uint32_t)crc, buf, len);
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}
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#else
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uint32_t Z_EXPORT PREFIX(crc32)(uint32_t crc, const unsigned char *buf, uint32_t len) {
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return PREFIX(crc32_z)(crc, buf, len);
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}
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#endif
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