/* $Id: cpl_detector_body.h,v 1.2 2007/07/06 13:57:49 llundin Exp $
 *
 * This file is part of the ESO Common Pipeline Library
 * Copyright (C) 2001-2004 European Southern Observatory
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* Type dependent macros */
#if CPL_CLASS == CPL_CLASS_DOUBLE
#define CPL_TYPE double
#define CPL_TYPE_T CPL_TYPE_DOUBLE
#define CPL_IMAGE_GET_DATA cpl_image_get_data_double

#elif CPL_CLASS == CPL_CLASS_FLOAT
#define CPL_TYPE float
#define CPL_TYPE_T CPL_TYPE_FLOAT
#define CPL_IMAGE_GET_DATA cpl_image_get_data_float

#else
#undef CPL_TYPE
#undef CPL_TYPE_T
#undef CPL_IMAGE_GET_DATA
#endif

#if CPL_OPERATION == CPL_DET_CLEAN_BAD_PIX

    case CPL_TYPE_T:
    {
        CPL_TYPE    *   pi ;
        pi = CPL_IMAGE_GET_DATA(in) ;
        
        while ((nbad=cpl_image_count_rejected(in)) > 0) {
            /* Get the bad pixel map */
            bpm_cur = cpl_image_get_bpm(in) ;
            bpm = cpl_mask_duplicate(bpm_cur) ;
            pbpm = cpl_mask_get_data(bpm) ;
            pbpm_cur = cpl_mask_get_data_const(bpm_cur) ;
            cpl_ensure_code(pbpm_cur, CPL_ERROR_ILLEGAL_OUTPUT) ;

            /* Try to clean each bad pixel */
            for (j=0 ; j<ny ; j++) {
                for (i=0 ; i<nx ; i++) {
                    /* Curent pixel position */
                    pos = i + j * nx ;
                    if (pbpm_cur[pos] == CPL_BINARY_1) {

                        /* This pixel has to be recomputed */
                        nb_pix = 0 ;
                        sum_pix = 0.0 ;
                        if (pbpm_cur[pos] == CPL_BINARY_0) {
                            sum_pix += (double)pi[pos] ;
                            nb_pix++ ;
                        }
                        if (pos-1>=0) 
                            if (pbpm_cur[pos-1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos-1] ;
                                nb_pix++ ;
                            }
                        if (pos+1<nx*ny) 
                            if (pbpm_cur[pos+1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos+1] ;
                                nb_pix++ ;
                            }
                        if (pos+nx+1<nx*ny) 
                            if (pbpm_cur[pos+nx+1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos+nx+1] ;
                                nb_pix++ ;
                            }
                        if (pos+nx-1<nx*ny) 
                            if (pbpm_cur[pos+nx-1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos+nx-1] ;
                                nb_pix++ ;
                            }
                        if (pos+nx<nx*ny) 
                            if (pbpm_cur[pos+nx] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos+nx] ;
                                nb_pix++ ;
                            }
                        if (pos-nx+1>=0) 
                            if (pbpm_cur[pos-nx+1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos-nx+1] ;
                                nb_pix++ ;
                            }
                        if (pos-nx-1>=0) 
                            if (pbpm_cur[pos-nx-1] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos-nx-1] ;
                                nb_pix++ ;
                            }
                        if (pos-nx>=0) 
                            if (pbpm_cur[pos-nx] == CPL_BINARY_0) {
                                sum_pix += (double)pi[pos-nx] ;
                                nb_pix++ ;
                            }
                       
                        if (nb_pix > 0) {
                            /* Successfully recomputed */
                            sum_pix /= nb_pix ;
                            pi[pos] = (CPL_TYPE)sum_pix ;
                            pbpm[pos] = CPL_BINARY_0 ;
                        }
                    }
                }
            }
            /* Update the bad pixel map in in */
            cpl_image_reject_from_mask(in, bpm) ;
            cpl_mask_delete(bpm) ;
        }
        break ;
    }

#endif

#undef CPL_TYPE
#undef CPL_TYPE_T
#undef CPL_IMAGE_GET_DATA