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cv::pow (added ippiSqr_32f_C1R for power=2)

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This commit is contained in:
Ilya Lavrenov 2014-04-05 23:54:29 +04:00
parent b56b9c43dc
commit b72b256fda
1 changed files with 39 additions and 23 deletions
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62
modules/core/src/mathfuncs.cpp
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@ -240,7 +240,7 @@ static void Magnitude_32f(const float* x, const float* y, float* mag, int len)
{
#ifdef HAVE_IPP
IppStatus status = ippsMagnitude_32f(x, y, mag, len);
if (status == ippStsNoErr)
if (status >= 0)
return;
#endif
@ -272,7 +272,7 @@ static void Magnitude_64f(const double* x, const double* y, double* mag, int len
{
#ifdef HAVE_IPP
IppStatus status = ippsMagnitude_64f(x, y, mag, len);
if (status == ippStsNoErr)
if (status >= 0)
return;
#endif
@ -303,6 +303,11 @@ static void Magnitude_64f(const double* x, const double* y, double* mag, int len
static void InvSqrt_32f(const float* src, float* dst, int len)
{
#ifdef HAVE_IPP
if (ippsInvSqrt_32f_A21(src, dst, len) >= 0)
return;
#endif
int i = 0;
#if CV_SSE
@ -346,6 +351,10 @@ static void InvSqrt_64f(const double* src, double* dst, int len)
static void Sqrt_32f(const float* src, float* dst, int len)
{
#ifdef HAVE_IPP
if (ippsSqrt_32f_A21(src, dst, len) >= 0)
return;
#endif
int i = 0;
#if CV_SSE
@ -375,6 +384,11 @@ static void Sqrt_32f(const float* src, float* dst, int len)
static void Sqrt_64f(const double* src, double* dst, int len)
{
#ifdef HAVE_IPP
if (ippsSqrt_64f_A50(src, dst, len) >= 0)
return;
#endif
int i = 0;
#if CV_SSE2
@ -2147,6 +2161,29 @@ void pow( InputArray _src, double power, OutputArray _dst )
_src.copyTo(_dst);
return;
case 2:
#ifdef HAVE_IPP
if (depth == CV_32F && !same && ( (_src.dims() <= 2 && !ocl::useOpenCL()) || (_src.dims() > 2 && _src.isContinuous() && _dst.isContinuous()) ))
{
Mat src = _src.getMat();
_dst.create( src.dims, src.size, type );
Mat dst = _dst.getMat();
Size size = src.size();
int srcstep = (int)src.step, dststep = (int)dst.step, esz = CV_ELEM_SIZE(type);
if (src.isContinuous() && dst.isContinuous())
{
size.width = (int)src.total();
size.height = 1;
srcstep = dststep = (int)src.total() * esz;
}
size.width *= cn;
IppStatus status = ippiSqr_32f_C1R((const Ipp32f *)src.data, srcstep, (Ipp32f *)dst.data, dststep, ippiSize(size.width, size.height));
if (status >= 0)
return;
}
#endif
if (same)
multiply(_dst, _dst, _dst);
else
@ -2187,27 +2224,6 @@ void pow( InputArray _src, double power, OutputArray _dst )
}
else if( fabs(fabs(power) - 0.5) < DBL_EPSILON )
{
#ifdef HAVE_IPP
if (power > 0 && (src.dims <= 2 || (src.isContinuous() && dst.isContinuous()))) // power is 0.5
{
Size size = src.size();
int srcstep = (int)src.step, dststep = (int)dst.step, esz = src.elemSize();
if (src.isContinuous() && dst.isContinuous())
{
srcstep = dststep = (int)src.total() * esz;
size.width = (int)src.total();
size.height = 1;
}
size.width *= cn;
IppStatus status = ippiSqrt_32f_C1R((const Ipp32f *)src.data, srcstep, (Ipp32f *)dst.data, dststep,
ippiSize(size.width, size.height));
if (status == ippStsNoErr)
return;
}
#endif
MathFunc func = power < 0 ?
(depth == CV_32F ? (MathFunc)InvSqrt_32f : (MathFunc)InvSqrt_64f) :
(depth == CV_32F ? (MathFunc)Sqrt_32f : (MathFunc)Sqrt_64f);