generic-library/opencv
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cv::flip

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This commit is contained in:
Ilya Lavrenov 2014-04-05 21:54:25 +04:00
parent f2a35d6388
commit 77723db034
1 changed files with 51 additions and 13 deletions
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64
modules/core/src/copy.cpp
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@ -495,25 +495,17 @@ static bool ocl_flip(InputArray _src, OutputArray _dst, int flipCode )
else
kernelName = "arithm_flip_rows_cols", flipType = FLIP_BOTH;
Size size = _src.size();
int cols = size.width, rows = size.height;
if ((cols == 1 && flipType == FLIP_COLS) ||
(rows == 1 && flipType == FLIP_ROWS) ||
(rows == 1 && cols == 1 && flipType == FLIP_BOTH))
{
_src.copyTo(_dst);
return true;
}
ocl::Kernel k(kernelName, ocl::core::flip_oclsrc,
format( "-D T=%s -D T1=%s -D cn=%d", ocl::memopTypeToStr(type),
ocl::memopTypeToStr(depth), cn));
if (k.empty())
return false;
Size size = _src.size();
_dst.create(size, type);
UMat src = _src.getUMat(), dst = _dst.getUMat();
int cols = size.width, rows = size.height;
cols = flipType == FLIP_COLS ? (cols + 1) >> 1 : cols;
rows = flipType & FLIP_ROWS ? (rows + 1) >> 1 : rows;
@ -531,13 +523,59 @@ static bool ocl_flip(InputArray _src, OutputArray _dst, int flipCode )
void flip( InputArray _src, OutputArray _dst, int flip_mode )
{
CV_Assert( _src.dims() <= 2 );
Size size = _src.size();
CV_OCL_RUN( _dst.isUMat(), ocl_flip(_src,_dst, flip_mode))
if (flip_mode < 0)
{
if (size.width == 1)
flip_mode = 0;
if (size.height == 1)
flip_mode = 1;
}
if ((size.width == 1 && flip_mode > 0) ||
(size.height == 1 && flip_mode == 0) ||
(size.height == 1 && size.width == 1 && flip_mode < 0))
{
return _src.copyTo(_dst);
}
CV_OCL_RUN( _dst.isUMat(), ocl_flip(_src, _dst, flip_mode))
Mat src = _src.getMat();
_dst.create( src.size(), src.type() );
int type = src.type();
_dst.create( size, type );
Mat dst = _dst.getMat();
size_t esz = src.elemSize();
size_t esz = CV_ELEM_SIZE(type);
#ifdef HAVE_IPP
typedef IppStatus (CV_STDCALL * ippiMirror)(const void * pSrc, int srcStep, void * pDst, int dstStep, IppiSize roiSize, IppiAxis flip);
ippiMirror ippFunc =
type == CV_8UC1 ? (ippiMirror)ippiMirror_8u_C1R :
type == CV_8UC3 ? (ippiMirror)ippiMirror_8u_C3R :
type == CV_8UC4 ? (ippiMirror)ippiMirror_8u_C4R :
type == CV_16UC1 ? (ippiMirror)ippiMirror_16u_C1R :
type == CV_16UC3 ? (ippiMirror)ippiMirror_16u_C3R :
type == CV_16UC4 ? (ippiMirror)ippiMirror_16u_C4R :
type == CV_16SC1 ? (ippiMirror)ippiMirror_16s_C1R :
type == CV_16SC3 ? (ippiMirror)ippiMirror_16s_C3R :
type == CV_16SC4 ? (ippiMirror)ippiMirror_16s_C4R :
type == CV_32SC1 ? (ippiMirror)ippiMirror_32s_C1R :
type == CV_32SC3 ? (ippiMirror)ippiMirror_32s_C3R :
type == CV_32SC4 ? (ippiMirror)ippiMirror_32s_C4R :
type == CV_32FC1 ? (ippiMirror)ippiMirror_32f_C1R :
type == CV_32FC3 ? (ippiMirror)ippiMirror_32f_C3R :
type == CV_32FC4 ? (ippiMirror)ippiMirror_32f_C4R : 0;
IppiAxis axis = flip_mode == 0 ? ippAxsHorizontal :
flip_mode > 0 ? ippAxsVertical : ippAxsBoth;
if (ippFunc != 0)
{
IppStatus status = ippFunc(src.data, (int)src.step, dst.data, (int)dst.step, ippiSize(src.cols, src.rows), axis);
if (status >= 0)
return;
}
#endif
if( flip_mode <= 0 )
flipVert( src.data, src.step, dst.data, dst.step, src.size(), esz );