IVSFABI.H

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#ifdef CH_LANG_CC
/*
*      _______              __
*     / ___/ /  ___  __ _  / /  ___
*    / /__/ _ \/ _ \/  V \/ _ \/ _ \
*    \___/_//_/\___/_/_/_/_.__/\___/
*    Please refer to Copyright.txt, in Chombo's root directory.
*/
#endif

#ifndef _IVSFABI_H_
#define _IVSFABI_H_

#include "MayDay.H"
#include "IntVectSet.H"
#include "parstream.H"
#include "SPMD.H"
#include "DebugOut.H"
#include "SPMD.H"
#include "NamespaceHeader.H"

template <class T>
bool IVSFAB<T>::s_verbose = false;

template <class T>
void
IVSFAB<T>::setVerbose(bool a_verbose)
{
  s_verbose = a_verbose;
}
/*************/
template <class T> inline
const IntVectSet&
IVSFAB<T>::getIVS() const
{
  return m_ivs;
}
/******************/
template <class T> inline
IVSFAB<T>::IVSFAB()
{
  setDefaultValues();
}
/******************/
template <class T> inline
IVSFAB<T>::~IVSFAB()
{
  clear();
}
/******************/
template <class T> inline
IVSFAB<T>::IVSFAB(const IntVectSet& a_ivsin,
                        const int&        a_nvarin)
{
  setDefaultValues();
  define(a_ivsin, a_nvarin);
}
/******************/
template <class T> inline
void
IVSFAB<T>::define(const IntVectSet& a_ivsin,
                     const int& a_nvarin)
{
  clear();
  m_isDefined = true;
  CH_assert(a_nvarin > 0);
  m_ivs = a_ivsin;
  m_nComp = a_nvarin;
  m_nIvs = 0;
  if(!a_ivsin.isEmpty())
    {
      Box minbox = a_ivsin.minBox();
      m_ivmap.resize(minbox, 1);
      IVSIterator ivsit(a_ivsin);
      for(ivsit.reset(); ivsit.ok(); ++ivsit)
        {
          const IntVect& iv = ivsit();
          m_ivmap(iv,0) = m_nIvs;
          m_nIvs++;
        }

      if( (m_nIvs > 0) && m_nComp > 0)
        {
          m_dataPtr = new T[m_nComp*m_nIvs];
        }
      else
        {
          m_dataPtr = NULL;
        }
    }
  else
    {
      m_dataPtr = NULL;
    }
  if(m_nIvs > 0)
    {
      //set up face low and high vectors
      for (int dir = 0; dir < CH_SPACEDIM; ++dir)
        {
          m_loVect[dir] = 1;
          m_hiVect[dir] = 1;
        }
      m_hiVect[0] = m_nIvs;

    }
  else
    {
      m_loVect = IntVect::Unit;
      m_hiVect = IntVect::Zero;
      m_dataPtr = NULL;
    }

}
/******************/
template <class T> inline
void
IVSFAB<T>::setVal(const T& a_value)
{
  CH_assert(isDefined());
  for(int ivec = 0; ivec < m_nIvs*m_nComp; ivec++)
    m_dataPtr[ivec] = a_value;
}
/******************/
template <class T> inline
void
IVSFAB<T>::copy(const Box& a_fromBox,
                   const Interval& a_dstInterval,
                   const Box& a_toBox,
                   const IVSFAB<T>& a_src,
                   const Interval& a_srcInterval)
{
  CH_assert(a_fromBox == a_toBox);
  CH_assert(isDefined());
  CH_assert(a_src.isDefined());
  CH_assert(a_srcInterval.size() == a_dstInterval.size());
  CH_assert(a_dstInterval.begin() >= 0);
  CH_assert(a_srcInterval.begin() >= 0);
  CH_assert(a_dstInterval.end()   < m_nComp);
  CH_assert(a_srcInterval.end()   < a_src.m_nComp);

  if((!m_ivs.isEmpty()) && (!a_src.m_ivs.isEmpty()))
    {
      Box intBox = a_fromBox;
      IntVectSet ivsIntersect = m_ivs;
      ivsIntersect &= a_src.m_ivs; //how did this ever work without this line?
      ivsIntersect &= intBox;  //
      IVSFAB<T>& thisFAB = *this;
      int compSize = a_srcInterval.size();
      for(IVSIterator ivit(ivsIntersect); ivit.ok(); ++ivit)
        {
          const IntVect& iv = ivit();
          for(int icomp = 0; icomp < compSize; icomp++)
            {
              int isrccomp = a_srcInterval.begin() + icomp;
              int idstcomp = a_dstInterval.begin() + icomp;
              thisFAB(iv, idstcomp) = a_src(iv, isrccomp);
            }
        }
    }
}
/******************/
template <class T> inline
int IVSFAB<T>::size(const Box& a_region,
                       const Interval& a_comps) const
{
  MayDay::Error();
  return 0; // to prevent compiler error, but function should prolly be void?
}
/********************/
template <class T> inline
void IVSFAB<T>::linearOut(void* a_buf,
                             const Box& a_region,
                             const Interval& a_comps) const
{
  MayDay::Error();
}
/********************/
template <class T> inline
void IVSFAB<T>::linearIn(void* a_buf, const Box& a_region, const Interval& a_comps)
{
  MayDay::Error();
}

template <class T> inline
int
IVSFAB<T>::getIndex(const IntVect& a_iv, const int& a_comp) const
{
  CH_assert(isDefined());
  CH_assert(m_ivs.contains(a_iv));
  CH_assert((a_comp >= 0) && (a_comp < m_nComp));

  int ioffset = m_ivmap(a_iv, 0);
  CH_assert(ioffset >= 0);
  CH_assert(ioffset < m_nIvs);
  //now add offset from componentnitude
  ioffset += m_nIvs*a_comp;
  return ioffset;
}
/********************/
template <class T> inline
void
IVSFAB<T>::clear()
{
  m_nComp = 0;
  m_nIvs = 0;
  m_ivs.makeEmpty();
  m_ivmap.clear();
  if(m_dataPtr != NULL)
    {
      delete[] m_dataPtr;
      m_dataPtr = NULL;
    }
  m_isDefined = false;
}
/*************************/
template <class T> inline
bool
IVSFAB<T>::isDefined() const
{
  return (m_isDefined);
}
/*************************/
template <class T> inline
int
IVSFAB<T>::numIvs() const
{
  return m_nIvs;
}
/*************************/
template <class T> inline
int
IVSFAB<T>::nComp() const
{
  return m_nComp;
}
/*************************/
template <class T> inline
T&
IVSFAB<T>::operator() (const IntVect& a_ndin,
                       const int& a_comp)
{
  CH_assert(isDefined());
  CH_assert(a_comp >= 0);
  CH_assert(a_comp < m_nComp);
  int iloc = getIndex(a_ndin, a_comp);
  return(m_dataPtr[iloc]);
}
/**************************/
template <class T> inline
const T&
IVSFAB<T>::operator() (const IntVect& a_ndin,
                       const int& a_comp) const
{
  CH_assert(isDefined());
  CH_assert(a_comp >= 0);
  CH_assert(a_comp < m_nComp);
  int iloc = getIndex(a_ndin, a_comp);
  return(m_dataPtr[iloc]);
}
/******************/
template <class T> inline
const T*
IVSFAB<T>::dataPtr(const int& a_comp) const
{
  CH_assert(isDefined());
  CH_assert(a_comp >= 0);
  CH_assert(a_comp < m_nComp);
  return m_dataPtr + a_comp*m_nIvs;
}
/******************/
template <class T> inline
T*
IVSFAB<T>::dataPtr(const int& a_comp)
{
  CH_assert(isDefined());
  CH_assert(a_comp >= 0);
  CH_assert(a_comp < m_nComp);
  return m_dataPtr + a_comp*m_nIvs;
}
/******************/
template <class T> inline
const int*
IVSFAB<T>::loVect() const
{
  return m_loVect.getVect();
}
/******************/
template <class T> inline
const int*
IVSFAB<T>::hiVect() const
{
  return m_hiVect.getVect();
}
/******************/
template <class T> inline
void
IVSFAB<T>::setDefaultValues()
{
  m_isDefined = false;
  m_dataPtr = NULL;
  m_nIvs = 0;
  m_nComp = 0;
  m_loVect = IntVect::Unit;
  m_hiVect = IntVect::Zero;
}
/******************/
template <class T> inline
IVSFAB<T>&
IVSFAB<T>::operator= (const IVSFAB<T>& a_input)
{
  MayDay::Error("IVSFAB operator = not defined");
  return *this;
}
/******************/
template <class T> inline
IVSFAB<T>::IVSFAB (const IVSFAB<T>& a_input)
{
  MayDay::Error("IVSFAB copy constructor not defined");
}

#include "NamespaceFooter.H"
#endif

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