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/* ----------------------------------------------------------------------------
@COPYRIGHT :
Copyright 1993,1994,1995 David MacDonald,
McConnell Brain Imaging Centre,
Montreal Neurological Institute, McGill University.
Permission to use, copy, modify, and distribute this
software and its documentation for any purpose and without
fee is hereby granted, provided that the above copyright
notice appear in all copies. The author and McGill University
make no representations about the suitability of this
software for any purpose. It is provided "as is" without
express or implied warranty.
---------------------------------------------------------------------------- */
#include <internal_volume_io.h>
/* ----------------------------- MNI Header -----------------------------------
@NAME : set_array_size
@INPUT : array
type_size
previous_n_elems
new_n_elems - desired new array size
chunk_size
filename
line_number
@OUTPUT :
@RETURNS :
@DESCRIPTION: Sets the number of items allocated in the array to a multiple of
: chunk_size larger than new_n_elems
@METHOD :
@GLOBALS :
@CALLS :
@CREATED : David MacDonald
@MODIFIED :
---------------------------------------------------------------------------- */
VIOAPI void set_array_size(
void **array,
size_t type_size,
size_t previous_n_elems,
size_t new_n_elems,
size_t chunk_size
_ALLOC_SOURCE_LINE_ARG_DEF )
{
size_t new_chunk, previous_chunk;
if( new_n_elems != 0 )
{
new_chunk = ((new_n_elems+chunk_size-1) / chunk_size) * chunk_size;
if( previous_n_elems == 0 )
{
*array = alloc_memory_1d( new_chunk, type_size
_ALLOC_SOURCE_LINE_ARGUMENTS );
}
else
{
previous_chunk = ((previous_n_elems+chunk_size-1) / chunk_size) *
chunk_size;
if( new_chunk != previous_chunk )
realloc_memory( array, new_chunk, type_size
_ALLOC_SOURCE_LINE_ARGUMENTS );
}
}
else if( previous_n_elems != 0 )
free_memory_1d( array _ALLOC_SOURCE_LINE_ARGUMENTS );
}
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