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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
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
/* chunkset.c -- inline functions to copy small data chunks.
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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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typedef uint64_t chunk_t;
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#define CHUNK_SIZE 8
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#define HAVE_CHUNKMEMSET_4
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#define HAVE_CHUNKMEMSET_8
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static inline void chunkmemset_4(uint8_t *from, chunk_t *chunk) {
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uint8_t *dest = (uint8_t *)chunk;
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memcpy(dest, from, sizeof(uint32_t));
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memcpy(dest+4, from, sizeof(uint32_t));
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}
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static inline void chunkmemset_8(uint8_t *from, chunk_t *chunk) {
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memcpy(chunk, from, sizeof(uint64_t));
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}
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static inline void loadchunk(uint8_t const *s, chunk_t *chunk) {
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memcpy(chunk, (uint8_t *)s, sizeof(uint64_t));
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}
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static inline void storechunk(uint8_t *out, chunk_t *chunk) {
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memcpy(out, chunk, sizeof(uint64_t));
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}
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#define CHUNKSIZE chunksize_c
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#define CHUNKCOPY chunkcopy_c
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#define CHUNKUNROLL chunkunroll_c
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#define CHUNKMEMSET chunkmemset_c
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#define CHUNKMEMSET_SAFE chunkmemset_safe_c
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#include "chunkset_tpl.h"
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#define INFLATE_FAST inflate_fast_c
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#include "inffast_tpl.h"
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