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#ifndef _MESH_GETEXT_H__INCLUDED_
#define _MESH_GETEXT_H__INCLUDED_
#include "mesh.h"
/************ EXTRA MESH GET FUNCTIONS **************/
/*******************
* if you define MESH_GET_EXT_NOT_SAFE
* then meshGetExt will not be safe for any choice of
* xi and yi: it will be safe only in a neighbourhood of the mesh
*
* but it may be faster
*/
#ifdef MESHGETEXT_NOT_SAFE
#define MESHGETEXT__ONLY_Y__ __meshGetExt__only_y__
static inline double /* __attribute__ weak */
__meshGetExt__only_y__(MeshT *this, int xi, int yi,double *p);
#define MESHGETEXT__GETIT__ meshGet
#else
#define MESHGETEXT__ONLY_Y__ meshGetExt
#define MESHGETEXT__GETIT__ meshGetExt
#endif
static inline double /* __attribute__ weak */
meshGetExt(MeshT *this, int xi, int yi,double *p)
{
if(xi<0 )
return 2*MESHGETEXT__GETIT__(this,0,yi,p)
-MESHGETEXT__ONLY_Y__(this, -xi,yi,p);
else if (xi>=this->nx)
return 2*MESHGETEXT__GETIT__(this,this->nx-1 ,yi,p)
-MESHGETEXT__ONLY_Y__(this, 2*this->nx-xi-2,yi,p);
if(yi<0 )
return 2*MESHGETEXT__GETIT__(this,xi,0,p)
-MESHGETEXT__GETIT__(this, xi,-yi,p);
else if (yi>=this->ny)
return 2*MESHGETEXT__GETIT__(this,xi,this->ny-1,p)
-MESHGETEXT__GETIT__(this,xi, 2*this->ny-yi-2,p);
return meshGet__no_check(this,xi,yi,p) ;
}
#ifdef MESHGETEXT_NOT_SAFE
static inline double /* __attribute__ weak */
__meshGetExt__only_y__(MeshT *this, int xi, int yi,double *p)
{
if(yi<0 )
return 2*MESHGETEXT__GETIT__(this,xi,0,p)
-MESHGETEXT__GETIT__(this, xi,-yi,p);
else if (yi>=this->ny)
return 2*MESHGETEXT__GETIT__(this,xi,this->ny-1,p)
-MESHGETEXT__GETIT__(this,xi, 2*this->ny-yi-2,p);
return meshGet__no_check(this,xi,yi,p) ;
}
#endif
static inline double /* __attribute__ weak */
meshGetxExt2(MeshT *this, int xi, int yi)
{
return meshGetExt(this,xi,yi, this->x);
}
static inline double /* __attribute__ weak */
meshGetyExt2(MeshT *this, int xi, int yi)
{
return meshGetExt(this,xi,yi, this->y);
}
static inline double /* __attribute__ weak */
meshGetxExt(MeshT *this, int xi, int yi)
{
double *p=this->x;
if(xi<0 )
return 2*MESHGETEXT__ONLY_Y__(this,0,yi,p)
-MESHGETEXT__ONLY_Y__(this, -xi,yi,p);
else if (xi>=this->nx)
return 2*MESHGETEXT__ONLY_Y__(this,this->nx-1 ,yi,p)
-MESHGETEXT__ONLY_Y__(this, 2*this->nx-xi-2,yi,p);
if(yi<0 )
return MESHGETEXT__GETIT__(this, xi,-yi,p);
else if (yi>=this->ny)
return MESHGETEXT__GETIT__(this,xi, 2*this->ny-yi-2,p);
return meshGet__no_check(this,xi,yi,p) ;
}
static inline double /* __attribute__ weak */
meshGetyExt(MeshT *this, int xi, int yi)
{
double *p=this->y;
if(xi<0 )
return MESHGETEXT__ONLY_Y__(this, -xi,yi,p);
else if (xi>=this->nx)
return MESHGETEXT__ONLY_Y__(this, 2*this->nx-xi-2,yi,p);
if(yi<0 )
return 2*MESHGETEXT__GETIT__(this,xi,0,p)
-MESHGETEXT__GETIT__(this, xi,-yi,p);
else if (yi>=this->ny)
return 2*MESHGETEXT__GETIT__(this,xi,this->ny-1,p)
-MESHGETEXT__GETIT__(this,xi, 2*this->ny-yi-2,p);
return meshGet__no_check(this,xi,yi,p) ;
}
#endif // _MESH_GETEXT_H__INCLUDED_
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