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

---

TalkNgbExtraP1Cnum.h

Go to the documentation of this file.

#ifndef Impala_Core_Array_Trait_TalkNgbExtraP1Cnum_h
#define Impala_Core_Array_Trait_TalkNgbExtraP1Cnum_h

#include "Core/Array/Pattern/Categories.h"
#include "Core/Array/Pattern/Cnum.h"
#include "Core/Array/Element/E1Cast.h"

namespace Impala
{
namespace Core
{
namespace Array
{
namespace Trait
{


template<class DstArrayT, class SrcArrayT, class ExtraArrayT>
class TalkNgbExtraP1Cnum
{
public:

    typedef Pattern::TagCnum IteratorCategory;

    typedef Pattern::Tag1Phase PhaseCategory;

    typedef Pattern::Cnum CnumType;

    typedef typename DstArrayT::StorType DstStorType;
    typedef typename DstArrayT::ArithType DstArithType;
    typedef typename SrcArrayT::StorType SrcStorType;
    typedef typename SrcArrayT::ArithType SrcArithType;
    typedef typename ExtraArrayT::StorType ExtraStorType;
    typedef typename ExtraArrayT::ArithType ExtraArithType;

    TalkNgbExtraP1Cnum(bool verbose)
    {
        mVerbose = verbose;
    }

    int
    Width()
    {
        return 3;
    }

    int
    Height()
    {
        return 3;
    }

    CnumType
    Begin()
    {
        return mBegin;
    }

    CnumType&
    End()
    {
        return mEnd;
    }

    void
    Init(int x, int y, const SrcArithType& v1, const ExtraArithType& v2)
    {
        if (mVerbose)
            std::cout << "  TalkNgbExtraP1Cnum::init(" << x << "," << y << ","
                      << v1 << "," << v2 << ") " << std::endl;
        mBegin = CnumType(&mCoordPairs[0]);
        mEnd = CnumType(&mCoordPairs[8]);
        mResult = Element::E1Cast(0, DstArithType());
    }

    void
    NextEl(int x, int y, const SrcArithType& v1, const ExtraArithType& v2)
    {
        if (mVerbose)
            std::cout << "      TalkNgbExtraP1Cnum::next(" << x << "," << y
                      << "," << v1 << "," << v2 << ") " << std::endl;
        DstArithType tmp(v1, v2, 0);
        mResult += tmp;
    }

    DstArithType
    Result() const
    {
        return mResult;
    }

private:
    DstArithType   mResult;
    bool           mVerbose;
    CnumType       mBegin;
    CnumType       mEnd;
    static Pattern::Coord mCoordPairs[8];
};


template<class DstArrayT, class SrcArrayT, class ExtraArrayT>
Pattern::Coord TalkNgbExtraP1Cnum<DstArrayT,SrcArrayT,ExtraArrayT>::mCoordPairs[8] = 
{
    { -1, -1 },
    {  0, -1 },
    {  1, -1 },
    {  1,  0 },
    {  1,  1 },
    {  0,  1 },
    { -1,  1 },
    {  0, -1 }
};

} // namespace Trait
} // namespace Array
} // namespace Core
} // namespace Impala

#endif

---