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/*@@
@file MaskUtils.c
@date October 2002
@author Denis Pollney
@desc
Function prototypes and macros mask utilities.
@desc
@version $Header$
@@*/
#ifndef __CACTUSEINSTEIN_SPACEMASK_H__
#define __CACTUSEINSTEIN_SPACEMASK_H__
#define SPACEMASK_DEBUG 0
/********************************************************************
********************* Routine Prototypes *************************
********************************************************************/
#ifdef CCODE
#ifdef __cplusplus
extern "C"
{
#endif
/* publicly visible routines */
int SpaceMask_RegisterType(const char* type_name, int nstates,
const char* const state_list[]);
int SpaceMask_AppendStatesToType(const char* type_name, int nstates,
const char* const state_list[]);
CCTK_INT SpaceMask_GetTypeBits(const char* type_name);
CCTK_INT SpaceMask_GetStateBits(const char* type_name, const char* state_name);
void SpaceMask_SetState(CCTK_INT* mask, int point,
const char* type_name, const char* state);
CCTK_INT SpaceMask_CheckState(const CCTK_INT* mask, int point,
const char* type_name, const char* state);
#ifdef __cplusplus
}
#endif
#endif
/********************************************************************
********************* Local Data Types **********************
********************************************************************/
#ifdef CCODE
typedef struct
{
const char* name;
CCTK_INT bitmask;
} SpaceMask_State;
typedef struct
{
const char* name;
int nstates;
CCTK_INT bitmask;
SpaceMask_State** state_list;
} SpaceMask_Type;
typedef struct
{
int ntypes;
SpaceMask_Type** type_list;
} SpaceMask_Registry;
extern SpaceMask_Registry* spacemask_Registry;
#endif
/********************************************************************
********************* Macros ******************************
********************************************************************/
/*@@
@routine SpaceMask_SetStateBits
@author Denis Pollney
@date 15 October 2002
@desc
Sets the mask at a point to the given state, as specified
using a bitmask.
@enddesc
@@*/
#ifdef FCODE
#define SpaceMask_SetStateBitsF90(mask, i,j,k, type_bits, state_bits) \
mask(i,j,k) = ior(iand(mask(i,j,k), not(type_bits)), state_bits)
#endif
#ifdef CCODE
#define SpaceMask_SetStateBits(mask, ijk, type_bits, state_bits) \
((mask)[ijk] = (((mask)[ijk] & ~(type_bits)) | (state_bits)))
#endif
/*@@
@routine SpaceMask_CheckStateBits
@author Denis Pollney
@date 15 October 2002
@desc
Checks that the mask at a point has the specified state,
in which case return 1, otherwise return 0.
@enddesc
@@*/
#ifdef FCODE
#define SpaceMask_CheckStateBitsF90(mask,i,j,k,type_bits,state_bits) \
(iand(mask((i),(j),(k)),(type_bits)).eq.(state_bits))
#endif
#ifdef CCODE
#define SpaceMask_CheckStateBits(mask, ijk, type_bits, state_bits) \
(((mask)[ijk] & (type_bits)) == (state_bits))
#endif
#endif /* __CACTUSEINSTEIN_SPACEMASK_H__ */
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