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edt_fullcopy.c

00001 /*****************************************************************************
00002    Major portions of this software are copyrighted by the Medical College
00003    of Wisconsin, 1994-2000, and are released under the Gnu General Public
00004    License, Version 2.  See the file README.Copyright for details.
00005 ******************************************************************************/
00006 
00007 #include "mrilib.h"
00008 
00009 /*---------------------------------------------------------------------
00010    Routine to make a copy of a dataset, with data attached.
00011 -----------------------------------------------------------------------*/
00012 
00013 THD_3dim_dataset * EDIT_full_copy( THD_3dim_dataset *dset , char *new_prefix )
00014 {
00015    THD_3dim_dataset *new_dset ;
00016    int ival , ityp , nbytes , nvals ;
00017    void *new_brick , *old_brick ;
00018 
00019 ENTRY("EDIT_full_copy") ;
00020 
00021    /*-- sanity check --*/
00022 
00023    if( ! ISVALID_3DIM_DATASET(dset) ) RETURN(NULL) ;
00024 
00025    /*-- make the empty copy --*/
00026 
00027    new_dset = EDIT_empty_copy( dset ) ;  /* copy is set to MALLOC memory */
00028 
00029    /*-- change its name? --*/
00030 
00031    if( new_prefix != NULL )
00032      EDIT_dset_items( new_dset ,
00033                         ADN_prefix , new_prefix ,
00034                         ADN_label1 , new_prefix ,
00035                       ADN_none ) ;
00036 
00037    /*-- make brick(s) for this dataset --*/
00038 
00039    THD_load_datablock( dset->dblk ) ;  /* make sure old one is in memory */
00040 
00041    nvals = DSET_NVALS(dset) ;
00042 
00043    for( ival=0 ; ival < nvals ; ival++ ){
00044      ityp      = DSET_BRICK_TYPE(new_dset,ival) ;   /* type of data */
00045      nbytes    = DSET_BRICK_BYTES(new_dset,ival) ;  /* how much data */
00046      new_brick = malloc( nbytes ) ;                 /* make room */
00047 
00048      if( new_brick == NULL ){
00049        THD_delete_3dim_dataset( new_dset , False ) ;
00050        RETURN(NULL) ;
00051      }
00052 
00053      EDIT_substitute_brick( new_dset , ival , ityp , new_brick ) ;
00054 
00055      /*-- copy data from old brick to new brick --*/
00056 
00057      old_brick = DSET_BRICK_ARRAY(dset,ival) ;
00058 
00059      if( old_brick == NULL ){
00060        THD_delete_3dim_dataset( new_dset , False ) ;
00061        RETURN(NULL) ;
00062      }
00063 
00064      memcpy( new_brick , old_brick , nbytes ) ;
00065    }
00066 
00067    RETURN( new_dset );
00068 }
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edt_fullcopy.c
