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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
24 lines
751 B
C
24 lines
751 B
C
/* cpu_features.c -- CPU architecture feature check
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* Copyright (C) 2017 Hans Kristian Rosbach
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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 "cpu_features.h"
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#include <string.h>
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Z_INTERNAL void cpu_check_features(struct cpu_features *features) {
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memset(features, 0, sizeof(struct cpu_features));
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#if defined(X86_FEATURES)
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x86_check_features(&features->x86);
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#elif defined(ARM_FEATURES)
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arm_check_features(&features->arm);
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#elif defined(PPC_FEATURES) || defined(POWER_FEATURES)
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power_check_features(&features->power);
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#elif defined(S390_FEATURES)
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s390_check_features(&features->s390);
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#elif defined(RISCV_FEATURES)
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riscv_check_features(&features->riscv);
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#endif
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}
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