GlobalFTMachineCallbacks.h

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//# GlobalFTMachineCallbacks.h: Definition for GlobalFTMachineCallbacks
//# Copyright (C) 1996,1997,1998,1999,2000,2002
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
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//#
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//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
//# License for more details.
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//# $Id$

#ifndef SYNTHESIS_GLOBALFTMACHINECALLBACKS_H
#define SYNTHESIS_GLOBALFTMACHINECALLBACKS_H

#include <synthesis/TransformMachines/IlluminationConvFunc.h>

#define NEED_UNDERSCORES
namespace casa {
  extern "C" 
  {
    //
    // The Gridding Convolution casacore::Function (GCF) used by the underlying
    // gridder written in FORTRAN.
    //
    // The arguments must all be pointers and the value of the GCF at
    // the given (u,v) point is returned in the weight variable.  Making
    // this a function which returns a complex value (namely the weight)
    // has problems when called in FORTRAN - I (SB) don't understand
    // why.
    //
#if defined(NEED_UNDERSCORES)
#define gcppeij gcppeij_
#define globalGCFPtr globalgcfptr_
#endif
    typedef void (*GCFPtr)(casacore::Double *griduvw, casacore::Double *area,
                           casacore::Double *raoff1, casacore::Double *decoff1,
                           casacore::Double *raoff2, casacore::Double *decoff2, 
                           casacore::Int *doGrad,
                           casacore::Complex *weight,
                           casacore::Complex *dweight1,
                           casacore::Complex *dweight2,
                           casacore::Double *currentCFPA);
    
    extern void gcppeij(casacore::Double *griduvw, casacore::Double *area,
                   casacore::Double *raoff1, casacore::Double *decoff1,
                   casacore::Double *raoff2, casacore::Double *decoff2, 
                   casacore::Int *doGrad,
                   casacore::Complex *weight,
                   casacore::Complex *dweight1,
                   casacore::Complex *dweight2,
                   casacore::Double *currentCFPA);
    extern IlluminationConvFunc gwEij;
    //
    //---------------------------------------------------------------
    //
    //  IlluminationConvFunc gwEij;
    void gcppeij(casacore::Double *griduvw, casacore::Double *area,
                 casacore::Double *raoff1, casacore::Double *decoff1,
                 casacore::Double *raoff2, casacore::Double *decoff2, 
                 casacore::Int *doGrad,
                 casacore::Complex *weight,
                 casacore::Complex *dweight1,
                 casacore::Complex *dweight2,
                 casacore::Double *currentCFPA);

    /*
    void (*globalGCFPtr)(casacore::Double*griduvw, casacore::Double *area,
                         casacore::Double *raoff1, casacore::Double *decoff1,
                         casacore::Double *raoff2, casacore::Double *decoff2, 
                         casacore::Int *doGrad,
                         casacore::Complex *weight,
                         casacore::Complex *dweight1,
                         casacore::Complex *dweight2,
                         casacore::Double *currentCFPA) = NULL;
    */
  };
};

#endif