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0de26fd78e
Zlib-ng is zlib replacement with optimizations for "next generation" systems. Its optimization may benifits image library decode and encode speed such as libpng. In our tests, if using zlib-ng and libpng combination on a x86_64 machine with AVX2, the time of `imdecode` amd `imencode` will drop 20% approximately. This patch enables zlib-ng's optimization if `CV_DISABLE_OPTIMIZATION` is OFF. Since Zlib-ng can dispatch intrinsics on the fly, port work is much easier. Related discussion: https://github.com/opencv/opencv/issues/22573
17 lines
453 B
C
17 lines
453 B
C
/* adler32_fold.c -- adler32 folding interface
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* Copyright (C) 2022 Adam Stylinski
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#include "zbuild.h"
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#include "functable.h"
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#include "adler32_fold.h"
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#include <limits.h>
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Z_INTERNAL uint32_t adler32_fold_copy_c(uint32_t adler, uint8_t *dst, const uint8_t *src, size_t len) {
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adler = functable.adler32(adler, src, len);
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memcpy(dst, src, len);
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return adler;
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}
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