mirror of
https://github.com/opencv/opencv.git
synced 2024-12-27 11:28:14 +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
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* chunkset.c -- inline functions to copy small data chunks.
|
|
* For conditions of distribution and use, see copyright notice in zlib.h
|
|
*/
|
|
|
|
#include "zbuild.h"
|
|
|
|
typedef uint64_t chunk_t;
|
|
|
|
#define CHUNK_SIZE 8
|
|
|
|
#define HAVE_CHUNKMEMSET_4
|
|
#define HAVE_CHUNKMEMSET_8
|
|
|
|
static inline void chunkmemset_4(uint8_t *from, chunk_t *chunk) {
|
|
uint8_t *dest = (uint8_t *)chunk;
|
|
memcpy(dest, from, sizeof(uint32_t));
|
|
memcpy(dest+4, from, sizeof(uint32_t));
|
|
}
|
|
|
|
static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
|
|
memcpy(chunk, from, sizeof(uint64_t));
|
|
}
|
|
|
|
static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
|
|
memcpy(chunk, (uint8_t *)s, sizeof(uint64_t));
|
|
}
|
|
|
|
static inline void storechunk(uint8_t *out, chunk_t *chunk) {
|
|
memcpy(out, chunk, sizeof(uint64_t));
|
|
}
|
|
|
|
#define CHUNKSIZE chunksize_c
|
|
#define CHUNKCOPY chunkcopy_c
|
|
#define CHUNKUNROLL chunkunroll_c
|
|
#define CHUNKMEMSET chunkmemset_c
|
|
#define CHUNKMEMSET_SAFE chunkmemset_safe_c
|
|
|
|
#include "chunkset_tpl.h"
|
|
|
|
#define INFLATE_FAST inflate_fast_c
|
|
|
|
#include "inffast_tpl.h"
|