mapperNBS.hpp

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/*------------------------------- phasicFlow ---------------------------------
      O        C enter of
     O O       E ngineering and
    O   O      M ultiscale modeling of
   OOOOOOO     F luid flow       
------------------------------------------------------------------------------
  Copyright (C): www.cemf.ir
  email: hamid.r.norouzi AT gmail.com
------------------------------------------------------------------------------  
Licence:
  This file is part of phasicFlow code. It is a free software for simulating 
  granular and multiphase flows. You can redistribute it and/or modify it under
  the terms of GNU General Public License v3 or any other later versions. 
 
  phasicFlow is distributed to help others in their research in the field of 
  granular and multiphase flows, but WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
-----------------------------------------------------------------------------*/
 
 
#ifndef __mapperNBS_hpp__
#define __mapperNBS_hpp__
 
#include "phasicFlowKokkos.hpp"
#include "pointFlag.hpp"
#include "cells.hpp"
//#include "contactSearchFunctions.hpp"
 
 
namespace pFlow
{
 
class mapperNBS
{
public:
 
    using HeadType          = deviceViewType3D<uint32>;
 
    using NextType          = deviceViewType1D<uint32>; 
 
    
    static constexpr uint32 NoPos   = 0xFFFFFFFF;
 
    class CellIterator
    {
    private:
        HeadType        head_;
 
        NextType        next_;
 
    public:
 
        CellIterator(const HeadType& head, const NextType& next)
        :
            head_(head),
            next_(next)
        {}
        
        static constexpr uint32 NoPos = 0xFFFFFFFF;
 
        INLINE_FUNCTION_HD
        int32x3 numCells()const {
            return int32x3(head_.extent(0), head_.extent(1), head_.extent(2));}
 
        INLINE_FUNCTION_HD
        uint32 start(int32 i, int32 j, int32 k)const {
            return head_(i,j,k); }
 
        INLINE_FUNCTION_HD
        uint32 getNext(uint32 n)const {
            if(n == NoPos ) return NoPos;
            return next_(n); }
 
        INLINE_FUNCTION_HD
        uint32 next(uint32 n)const{
            return next_(n);}
    };
 
private:
    
    cells               domainCells_;
 
    cells               searchCells_;
 
    HeadType            head_{"NBS::head",1,1,1};
 
    NextType            next_{"NBS::next", 1};
 
    uint32              nextCapacity_ = 0;
 
    uint32              lastCheckForBox_ = 0;
 
    uint32              buildCount_ = 0;
 
    bool                adjustableBox_ = false;
 
    bool                nextOwner_  = true;
 
    static uint32       checkInterval_; 
 
    static real         enlargementFactor_;
 
    bool setSearchBox(
        const deviceViewType1D<realx3>& pointPos,
        const pFlagTypeDevice& flags,
        real cellSize
    );
 
    void allocateArrays(rangeU32 nextRng);
 
    void checkAllocateNext(rangeU32 nextRng);
    
    void nullifyHead();
    
    void nullifyNext(rangeU32 nextRng);
    
public:
 
    TypeInfoNV("mapperNBS");
 
        INLINE_FUNCTION_HD
        mapperNBS() = default;
 
        mapperNBS(
            const   box& domain,
            real    cellSize,
            const deviceViewType1D<realx3>& pointPos,
            const pFlagTypeDevice& flags,
            bool    adjustableBox,
            bool    nextOwner = true);
                    
        INLINE_FUNCTION_HD
        mapperNBS(const mapperNBS&) = default;
 
        INLINE_FUNCTION_HD
        mapperNBS(mapperNBS&&) = default;
        
        INLINE_FUNCTION_HD
        mapperNBS& operator = (const mapperNBS&) = default;
 
        INLINE_FUNCTION_HD
        mapperNBS& operator = (mapperNBS&&) = default;
 
        INLINE_FUNCTION_HD
        ~mapperNBS()=default;
 
 
        auto getCellIterator()const
        {
            return CellIterator(head_, next_);
        }
 
        const auto& getDomainCells()const
        {
            return domainCells_;
        }
 
        const auto& getSearchCells()const
        {
            return searchCells_;
        }
 
        bool build(
            const deviceViewType1D<realx3>& pointPos,
            const pFlagTypeDevice& flags,
            bool&  searchBoxChanged);
 
        
    
 
};
 
} // pFlow
 
#endif // __mapperNBS_hpp__
 
 
 
 
/*
INLINE_FUNCTION_HD
    auto& head()
    {
        return head_;
    }
 
    INLINE_FUNCTION_HD
    auto& next()
    {
        return next_;
    }
 
    INLINE_FUNCTION_HD
    const auto& head()const
    {
        return head_;
    }
 
    INLINE_FUNCTION_HD
    const auto& next()const
    {
        return next_;
    }
 
    INLINE_FUNCTION_HD
    auto& pointPosition()
    {
        return pointPosition_;
    }
*/