|| || || || || || || ||

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SeqConvKernel.h

Go to the documentation of this file.

#ifndef Impala_Core_Stream_SeqConvKernel_h
#define Impala_Core_Stream_SeqConvKernel_h

#include "Core/Array/MulVal.h"
#include "Core/Array/Add.h"
#include "Core/Array/Element/E1Cast.h"

namespace Impala
{
namespace Core
{
namespace Stream
{


// Assume kernel contains scalar values
template<class ArrayT, class Window, class KerArrayT>
inline void
SeqConvKernel(ArrayT*& dst, Window* src, KerArrayT* ker)
{
    typedef typename ArrayT::ArithType ArithT;
    typedef typename KerArrayT::ArithType KerArithT;
    typedef typename KerArrayT::StorType KerStorT;

    using Array::MulVal;
    using Array::Element::E1Cast;

    ILOG_VAR(Impala.Core.Stream.SeqConvKernel);
    if (src->WindowSize() != ker->CW())
    {
        ILOG_ERROR("window size does not match kernel size");
        return;
    }

    KerStorT* filter = ker->CPB();
    MulVal(dst, src->DataArrayWindow(0), E1Cast(filter[0], ArithT()));
    int filterSize = ker->CW();
    ArrayT* tmp = 0;
    for (int i=1 ; i<filterSize ; i++)
    {
        MulVal(tmp, src->DataArrayWindow(i), E1Cast(filter[i], ArithT()));
        Array::Add(dst, dst, tmp);
    }
    delete tmp;
}

} // namespace Stream
} // namespace Core
} // namespace Impala

#endif

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