mask1D.h

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/* This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef _GAN_MASK1D_H
#define _GAN_MASK1D_H

#include <gandalf/common/misc_defs.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
{
   GAN_MASK1D_SYMMETRIC,     
   GAN_MASK1D_ANTISYMMETRIC, 
   GAN_MASK1D_GENERIC        
} Gan_Mask1DFormat;

typedef enum
{
   GAN_EDGE_BEHAVIOUR_CLIP,     
   GAN_EDGE_BEHAVIOUR_REPEAT,   
   GAN_EDGE_BEHAVIOUR_CIRCULAR, 
   GAN_EDGE_BEHAVIOUR_EXPAND    
} Gan_EdgeBehaviour;

typedef struct
{
   Gan_Mask1DFormat format;

   Gan_Type type;

   unsigned int size;

   unsigned int size_alloc;

   union
   {
      float  *f;
      double *d;
      int    *i;
      unsigned short *us;
      unsigned char *uc;

   } data;

   Gan_Bool data_alloc;

   Gan_Bool alloc;
} Gan_Mask1D;

/* create new mask */
 Gan_Mask1D *gan_mask1D_form_gen ( Gan_Mask1D *mask,
                                  Gan_Mask1DFormat format, Gan_Type type,
                                  void *data, unsigned int size );
 Gan_Bool    gan_mask1D_copy_q ( Gan_Mask1D *source, Gan_Mask1D *dest );
 Gan_Bool    gan_mask1D_free ( Gan_Mask1D *mask );

 Gan_Mask1D *gan_gauss_mask_new ( Gan_Type type, double sigma,
                                 unsigned mask_size, double scale,
                                 void    *mask_data );

 Gan_Mask1D *gan_mask1D_alloc ( Gan_Mask1DFormat format, Gan_Type type,
                               unsigned int size );

 Gan_Mask1D *gan_mask1D_alloc_data ( Gan_Mask1DFormat format, Gan_Type type,
                                    void *data, unsigned int size );

 Gan_Mask1D *gan_mask1D_form ( Gan_Mask1D *mask,
                              Gan_Mask1DFormat format, Gan_Type type,
                              unsigned int size );

 Gan_Mask1D *gan_mask1D_form_data ( Gan_Mask1D *mask,
                                   Gan_Mask1DFormat format, Gan_Type type,
                                   void *data, unsigned int size );

#ifdef __cplusplus
}
#endif

#endif /* #ifndef _GAN_MASK1D_H */

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