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T-API: optimized ocl_flip

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This commit is contained in:
Elena Gvozdeva
2014-05-12 16:30:47 +04:00
parent eba1be711c
commit c7dc884855
2 changed files with 41 additions and 22 deletions
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15
modules/core/src/copy.cpp
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@@ -610,6 +610,7 @@ flipVert( const uchar* src0, size_t sstep, uchar* dst0, size_t dstep, Size size,
#ifdef HAVE_OPENCL
#define DIVUP(total, grain) (((total) + (grain) - 1) / (grain))
enum { FLIP_COLS = 1 << 0, FLIP_ROWS = 1 << 1, FLIP_BOTH = FLIP_ROWS | FLIP_COLS };
static bool ocl_flip(InputArray _src, OutputArray _dst, int flipCode )
@@ -628,9 +629,12 @@ static bool ocl_flip(InputArray _src, OutputArray _dst, int flipCode )
else
kernelName = "arithm_flip_rows_cols", flipType = FLIP_BOTH;
ocl::Device dev = ocl::Device::getDefault();
int pxPerWIy = (dev.isIntel() && (dev.type() & ocl::Device::TYPE_GPU)) ? 4 : 1;
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));
format( "-D T=%s -D T1=%s -D cn=%d -D PIX_PER_WI_Y=%d", ocl::memopTypeToStr(type),
ocl::memopTypeToStr(depth), cn, pxPerWIy));
if (k.empty())
return false;
@@ -645,10 +649,13 @@ static bool ocl_flip(InputArray _src, OutputArray _dst, int flipCode )
k.args(ocl::KernelArg::ReadOnlyNoSize(src),
ocl::KernelArg::WriteOnly(dst), rows, cols);
size_t maxWorkGroupSize = ocl::Device::getDefault().maxWorkGroupSize();
size_t maxWorkGroupSize = dev.maxWorkGroupSize();
CV_Assert(maxWorkGroupSize % 4 == 0);
size_t globalsize[2] = { cols, rows }, localsize[2] = { maxWorkGroupSize / 4, 4 };
return k.run(2, globalsize, flipType == FLIP_COLS ? localsize : NULL, false);
globalsize[1] = DIVUP(globalsize[1], pxPerWIy);
return k.run(2, globalsize, (flipType == FLIP_COLS) && (!dev.isIntel()) ? localsize : NULL, false);
}
#endif