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/* Fitsy FITS routines to handle a complete multi extension FITS file.
*/
typedef struct Ft_fileread {
int n;
int flag;
int pixtype;
} Ft_fileread;
ft_fileimageread(file, fits, data, x)
File file;
FITSHead fits;
FITSFile *data;
Ft_fileread *x;
{
int size;
(void)ReAlloc(*data, sizeof(struct FITSFile) * ++x->n);
(*data)[x->n-1].bitpix = x->pixtype;
if ( x->flag || ft_seek(fits) == -1 ) {
if ( ((*data)[x->n-1].data = ft_dataread(file, fits, NULL, x->pixtype))
== NULL ) {
return 0;
}
}
}
/* Read an entire FITS file.
*/
FITSFile ft_fileread(file, flag, pixtype, n)
File file;
int flag;
int pixtype;
int *n;
{
Ft_fileread x;
FITSFile data;
x.n = 0;
x.flag = flag;
x.pixtype = pixtype;
data = (FITSFile) ft_fileparse(file, ft_fileimageread, &x);
*n = x.n;
return data;
}
/* Return a pointer the data poriton of a FITS HDU.
*/
void *ft_filedata(file, ft)
File file;
FITSFile ft;
{
if ( ft->data != NULL ) return ft->data;
if ( ft_seek(ft->head) == -1 ) return NULL;
if ( ftSeek(file, ft_seek(ft->head), 0) == -1 )
return NULL;
return ft->data = ft_dataread(file, ft->head, NULL, ft->bitpix);
}
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