opencv/3rdparty/zlib-ng/arch/power/slide_hash_power8.c

/* Optimized slide_hash for POWER processors
 * Copyright (C) 2019-2020 IBM Corporation
 * Author: Matheus Castanho <msc@linux.ibm.com>
 * For conditions of distribution and use, see copyright notice in zlib.h
 */

#ifdef POWER8_VSX

#define SLIDE_PPC slide_hash_power8
#include "slide_ppc_tpl.h"

#endif /* POWER8_VSX */
Add zlib-ng as an alternative zlib implementation 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 2023-12-27 12:06:17 +08:00			`/* Optimized slide_hash for POWER processors`
			`* Copyright (C) 2019-2020 IBM Corporation`
			`* Author: Matheus Castanho <msc@linux.ibm.com>`
			`* For conditions of distribution and use, see copyright notice in zlib.h`
			`*/`

			`#ifdef POWER8_VSX`

			`#define SLIDE_PPC slide_hash_power8`
			`#include "slide_ppc_tpl.h"`

			`#endif /* POWER8_VSX */`