mirror of
https://github.com/opencv/opencv.git
synced 2024-12-03 00:10:21 +08:00
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
|
|
* Copyright (C) 2022 Adam Stylinski
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
|
*/
|
|
|
|
#include "zbuild.h"
|
|
#include "functable.h"
|
|
#include "adler32_fold.h"
|
|
|
|
#include <limits.h>
|
|
|
|
Z_INTERNAL uint32_t adler32_fold_copy_c(uint32_t adler, uint8_t *dst, const uint8_t *src, size_t len) {
|
|
adler = functable.adler32(adler, src, len);
|
|
memcpy(dst, src, len);
|
|
return adler;
|
|
}
|