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AVX optimized implementation of separable filters migrated to separate file

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Vitaly Tuzov 2017-06-29 19:38:01 +03:00
parent 20f603a217
commit 4d0f789e0a
3 changed files with 274 additions and 109 deletions
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200
modules/imgproc/src/filter.avx2.cpp Normal file
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@ -0,0 +1,200 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#include "precomp.hpp"
#include "filter.hpp"
namespace cv
{
int RowVec_32f_AVX(const float* src0, const float* _kx, float* dst, int width, int cn, int _ksize)
{
int i = 0, k;
for (; i <= width - 8; i += 8)
{
const float* src = src0 + i;
__m256 f, x0;
__m256 s0 = _mm256_set1_ps(0.0f);
for (k = 0; k < _ksize; k++, src += cn)
{
f = _mm256_set1_ps(_kx[k]);
x0 = _mm256_loadu_ps(src);
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
}
_mm256_zeroupper();
return i;
}
int SymmColumnVec_32f_Symm_AVX(const float** src, const float* ky, float* dst, float delta, int width, int ksize2)
{
int i = 0, k;
const float *S, *S2;
const __m128 d4 = _mm_set1_ps(delta);
const __m256 d8 = _mm256_set1_ps(delta);
for( ; i <= width - 16; i += 16 )
{
__m256 f = _mm256_set1_ps(ky[0]);
__m256 s0, s1;
__m256 x0;
S = src[0] + i;
s0 = _mm256_loadu_ps(S);
#if CV_FMA3
s0 = _mm256_fmadd_ps(s0, f, d8);
#else
s0 = _mm256_add_ps(_mm256_mul_ps(s0, f), d8);
#endif
s1 = _mm256_loadu_ps(S+8);
#if CV_FMA3
s1 = _mm256_fmadd_ps(s1, f, d8);
#else
s1 = _mm256_add_ps(_mm256_mul_ps(s1, f), d8);
#endif
for( k = 1; k <= ksize2; k++ )
{
S = src[k] + i;
S2 = src[-k] + i;
f = _mm256_set1_ps(ky[k]);
x0 = _mm256_add_ps(_mm256_loadu_ps(S), _mm256_loadu_ps(S2));
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
x0 = _mm256_add_ps(_mm256_loadu_ps(S+8), _mm256_loadu_ps(S2+8));
#if CV_FMA3
s1 = _mm256_fmadd_ps(x0, f, s1);
#else
s1 = _mm256_add_ps(s1, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
_mm256_storeu_ps(dst + i + 8, s1);
}
for( ; i <= width - 4; i += 4 )
{
__m128 f = _mm_set1_ps(ky[0]);
__m128 x0, s0 = _mm_load_ps(src[0] + i);
s0 = _mm_add_ps(_mm_mul_ps(s0, f), d4);
for( k = 1; k <= ksize2; k++ )
{
f = _mm_set1_ps(ky[k]);
S = src[k] + i;
S2 = src[-k] + i;
x0 = _mm_add_ps(_mm_load_ps(src[k]+i), _mm_load_ps(src[-k] + i));
s0 = _mm_add_ps(s0, _mm_mul_ps(x0, f));
}
_mm_storeu_ps(dst + i, s0);
}
_mm256_zeroupper();
return i;
}
int SymmColumnVec_32f_Unsymm_AVX(const float** src, const float* ky, float* dst, float delta, int width, int ksize2)
{
int i = 0, k;
const float *S, *S2;
const __m128 d4 = _mm_set1_ps(delta);
const __m256 d8 = _mm256_set1_ps(delta);
for (; i <= width - 16; i += 16)
{
__m256 f, s0 = d8, s1 = d8;
__m256 x0;
S = src[0] + i;
for (k = 1; k <= ksize2; k++)
{
S = src[k] + i;
S2 = src[-k] + i;
f = _mm256_set1_ps(ky[k]);
x0 = _mm256_sub_ps(_mm256_loadu_ps(S), _mm256_loadu_ps(S2));
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
x0 = _mm256_sub_ps(_mm256_loadu_ps(S + 8), _mm256_loadu_ps(S2 + 8));
#if CV_FMA3
s1 = _mm256_fmadd_ps(x0, f, s1);
#else
s1 = _mm256_add_ps(s1, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
_mm256_storeu_ps(dst + i + 8, s1);
}
for (; i <= width - 4; i += 4)
{
__m128 f, x0, s0 = d4;
for (k = 1; k <= ksize2; k++)
{
f = _mm_set1_ps(ky[k]);
x0 = _mm_sub_ps(_mm_load_ps(src[k] + i), _mm_load_ps(src[-k] + i));
s0 = _mm_add_ps(s0, _mm_mul_ps(x0, f));
}
_mm_storeu_ps(dst + i, s0);
}
_mm256_zeroupper();
return i;
}
}
/* End of file. */

126
modules/imgproc/src/filter.cpp
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@ -44,6 +44,8 @@
#include "opencv2/core/opencl/ocl_defs.hpp"
#include "opencl_kernels_imgproc.hpp"
#include "hal_replacement.hpp"
#include "filter.hpp"
/****************************************************************************************\
Base Image Filter
@ -1362,7 +1364,7 @@ struct RowVec_32f
RowVec_32f()
{
haveSSE = checkHardwareSupport(CV_CPU_SSE);
haveAVX2 = checkHardwareSupport(CV_CPU_AVX2);
haveAVX2 = CV_CPU_HAS_SUPPORT_AVX2;
#if defined USE_IPP_SEP_FILTERS
bufsz = -1;
#endif
@ -1372,7 +1374,7 @@ struct RowVec_32f
{
kernel = _kernel;
haveSSE = checkHardwareSupport(CV_CPU_SSE);
haveAVX2 = checkHardwareSupport(CV_CPU_AVX2);
haveAVX2 = CV_CPU_HAS_SUPPORT_AVX2;
#if defined USE_IPP_SEP_FILTERS
bufsz = -1;
#endif
@ -1399,28 +1401,9 @@ struct RowVec_32f
int i = 0, k;
width *= cn;
#if CV_AVX2
if ( haveAVX2 )
{
for( ; i <= width - 8; i += 8 )
{
const float* src = src0 + i;
__m256 f, x0;
__m256 s0 = _mm256_set1_ps(0.0f);
for( k = 0; k < _ksize; k++, src += cn )
{
f = _mm256_set1_ps(_kx[k]);
x0 = _mm256_loadu_ps(src);
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
}
return i;
}
#if CV_TRY_AVX2
if (haveAVX2)
return RowVec_32f_AVX(src0, _kx, dst, width, cn, _ksize);
#endif
for( ; i <= width - 8; i += 8 )
{
@ -1685,7 +1668,7 @@ struct SymmColumnVec_32f
SymmColumnVec_32f() {
symmetryType=0;
haveSSE = checkHardwareSupport(CV_CPU_SSE);
haveAVX2 = checkHardwareSupport(CV_CPU_AVX2);
haveAVX2 = CV_CPU_HAS_SUPPORT_AVX2;
delta = 0;
}
SymmColumnVec_32f(const Mat& _kernel, int _symmetryType, int, double _delta)
@ -1694,7 +1677,7 @@ struct SymmColumnVec_32f
kernel = _kernel;
delta = (float)_delta;
haveSSE = checkHardwareSupport(CV_CPU_SSE);
haveAVX2 = checkHardwareSupport(CV_CPU_AVX2);
haveAVX2 = CV_CPU_HAS_SUPPORT_AVX2;
CV_Assert( (symmetryType & (KERNEL_SYMMETRICAL | KERNEL_ASYMMETRICAL)) != 0 );
}
@ -1710,61 +1693,15 @@ struct SymmColumnVec_32f
const float** src = (const float**)_src;
const float *S, *S2;
float* dst = (float*)_dst;
const __m128 d4 = _mm_set1_ps(delta);
#if CV_AVX2
const __m256 d8 = _mm256_set1_ps(delta);
#endif
if( symmetrical )
{
#if CV_AVX2
if ( haveAVX2 )
{
for( ; i <= width - 16; i += 16 )
{
__m256 f = _mm256_set1_ps(ky[0]);
__m256 s0, s1;
__m256 x0;
S = src[0] + i;
s0 = _mm256_loadu_ps(S);
#if CV_FMA3
s0 = _mm256_fmadd_ps(s0, f, d8);
#else
s0 = _mm256_add_ps(_mm256_mul_ps(s0, f), d8);
#endif
s1 = _mm256_loadu_ps(S+8);
#if CV_FMA3
s1 = _mm256_fmadd_ps(s1, f, d8);
#else
s1 = _mm256_add_ps(_mm256_mul_ps(s1, f), d8);
#endif
for( k = 1; k <= ksize2; k++ )
{
S = src[k] + i;
S2 = src[-k] + i;
f = _mm256_set1_ps(ky[k]);
x0 = _mm256_add_ps(_mm256_loadu_ps(S), _mm256_loadu_ps(S2));
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
x0 = _mm256_add_ps(_mm256_loadu_ps(S+8), _mm256_loadu_ps(S2+8));
#if CV_FMA3
s1 = _mm256_fmadd_ps(x0, f, s1);
#else
s1 = _mm256_add_ps(s1, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
_mm256_storeu_ps(dst + i + 8, s1);
}
_mm256_zeroupper();
}
#if CV_TRY_AVX2
if (haveAVX2)
return SymmColumnVec_32f_Symm_AVX(src, ky, dst, delta, width, ksize2);
#endif
const __m128 d4 = _mm_set1_ps(delta);
for( ; i <= width - 16; i += 16 )
{
__m128 f = _mm_set1_ps(ky[0]);
@ -1821,40 +1758,11 @@ if ( haveAVX2 )
}
else
{
#if CV_AVX2
if ( haveAVX2 )
{
for( ; i <= width - 16; i += 16 )
{
__m256 f, s0 = d8, s1 = d8;
__m256 x0;
S = src[0] + i;
for( k = 1; k <= ksize2; k++ )
{
S = src[k] + i;
S2 = src[-k] + i;
f = _mm256_set1_ps(ky[k]);
x0 = _mm256_sub_ps(_mm256_loadu_ps(S), _mm256_loadu_ps(S2));
#if CV_FMA3
s0 = _mm256_fmadd_ps(x0, f, s0);
#else
s0 = _mm256_add_ps(s0, _mm256_mul_ps(x0, f));
#endif
x0 = _mm256_sub_ps(_mm256_loadu_ps(S+8), _mm256_loadu_ps(S2+8));
#if CV_FMA3
s1 = _mm256_fmadd_ps(x0, f, s1);
#else
s1 = _mm256_add_ps(s1, _mm256_mul_ps(x0, f));
#endif
}
_mm256_storeu_ps(dst + i, s0);
_mm256_storeu_ps(dst + i + 8, s1);
}
_mm256_zeroupper();
}
#if CV_TRY_AVX2
if (haveAVX2)
return SymmColumnVec_32f_Unsymm_AVX(src, ky, dst, delta, width, ksize2);
#endif
const __m128 d4 = _mm_set1_ps(delta);
for( ; i <= width - 16; i += 16 )
{
__m128 f, s0 = d4, s1 = d4, s2 = d4, s3 = d4;

57
modules/imgproc/src/filter.hpp Normal file
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@ -0,0 +1,57 @@
/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef OPENCV_IMGPROC_FILTER_HPP
#define OPENCV_IMGPROC_FILTER_HPP
namespace cv
{
#if CV_TRY_AVX2
int RowVec_32f_AVX(const float* src0, const float* _kx, float* dst, int width, int cn, int _ksize);
int SymmColumnVec_32f_Symm_AVX(const float** src, const float* ky, float* dst, float delta, int width, int ksize2);
int SymmColumnVec_32f_Unsymm_AVX(const float** src, const float* ky, float* dst, float delta, int width, int ksize2);
#endif
}
#endif
/* End of file. */