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Implement internal HAL for GEMM and matrix decompositions

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This commit is contained in:
Vladislav Sovrasov
2016-06-03 10:38:30 +03:00
parent e1ba4399e8
commit a2d0cc878c
13 changed files with 1028 additions and 76 deletions
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37
modules/core/src/lapack.cpp
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@@ -570,11 +570,44 @@ JacobiSVDImpl_(_Tp* At, size_t astep, _Tp* _W, _Tp* Vt, size_t vstep,
static void JacobiSVD(float* At, size_t astep, float* W, float* Vt, size_t vstep, int m, int n, int n1=-1)
{
JacobiSVDImpl_(At, astep, W, Vt, vstep, m, n, !Vt ? 0 : n1 < 0 ? n : n1, FLT_MIN, FLT_EPSILON*2);
hal::SVD32f(At, astep, W, NULL, astep, Vt, vstep, m, n, n1);
}
static void JacobiSVD(double* At, size_t astep, double* W, double* Vt, size_t vstep, int m, int n, int n1=-1)
{
hal::SVD64f(At, astep, W, NULL, astep, Vt, vstep, m, n, n1);
}
template <typename fptype> static inline int
decodeSVDParameters(const fptype* U, const fptype* Vt, int m, int n, int n1)
{
int halSVDFlag = 0;
if(Vt == NULL)
halSVDFlag = CV_HAL_SVD_NO_UV;
else if(n1 <= 0 || n1 == n)
{
halSVDFlag = CV_HAL_SVD_SHORT_UV;
if(U == NULL)
halSVDFlag |= CV_HAL_SVD_MODIFY_A;
}
else if(n1 == m)
{
halSVDFlag = CV_HAL_SVD_FULL_UV;
if(U == NULL)
halSVDFlag |= CV_HAL_SVD_MODIFY_A;
}
return halSVDFlag;
}
void hal::SVD32f(float* At, size_t astep, float* W, float* U, size_t ustep, float* Vt, size_t vstep, int m, int n, int n1)
{
CALL_HAL(SVD32f, cv_hal_SVD32f, At, astep, W, U, ustep, Vt, vstep, m, n, decodeSVDParameters(U, Vt, m, n, n1))
JacobiSVDImpl_(At, astep, W, Vt, vstep, m, n, !Vt ? 0 : n1 < 0 ? n : n1, FLT_MIN, FLT_EPSILON*2);
}
void hal::SVD64f(double* At, size_t astep, double* W, double* U, size_t ustep, double* Vt, size_t vstep, int m, int n, int n1)
{
CALL_HAL(SVD64f, cv_hal_SVD64f, At, astep, W, U, ustep, Vt, vstep, m, n, decodeSVDParameters(U, Vt, m, n, n1))
JacobiSVDImpl_(At, astep, W, Vt, vstep, m, n, !Vt ? 0 : n1 < 0 ? n : n1, DBL_MIN, DBL_EPSILON*10);
}
@@ -745,7 +778,6 @@ double cv::determinant( InputArray _mat )
{
for( int i = 0; i < rows; i++ )
result *= a.at<float>(i,i);
result = 1./result;
}
}
}
@@ -769,7 +801,6 @@ double cv::determinant( InputArray _mat )
{
for( int i = 0; i < rows; i++ )
result *= a.at<double>(i,i);
result = 1./result;
}
}
}