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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//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# 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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//# along with this library; if not, write to the Free Software Foundation,
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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 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)(Double *griduvw, Double *area,
                           Double *raoff1, Double *decoff1,
                           Double *raoff2, Double *decoff2, 
                           Int *doGrad,
                           Complex *weight,
                           Complex *dweight1,
                           Complex *dweight2,
                           Double *currentCFPA);
    
    extern void gcppeij(Double *griduvw, Double *area,
                   Double *raoff1, Double *decoff1,
                   Double *raoff2, Double *decoff2, 
                   Int *doGrad,
                   Complex *weight,
                   Complex *dweight1,
                   Complex *dweight2,
                   Double *currentCFPA);
    extern IlluminationConvFunc gwEij;
    //
    //---------------------------------------------------------------
    //
    //  IlluminationConvFunc gwEij;
    void gcppeij(Double *griduvw, Double *area,
                 Double *raoff1, Double *decoff1,
                 Double *raoff2, Double *decoff2, 
                 Int *doGrad,
                 Complex *weight,
                 Complex *dweight1,
                 Complex *dweight2,
                 Double *currentCFPA);

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

#endif