/* Wrapper to fits_create_img and fits_create_imgll */
SEXP
cfitsio_create_img (SEXP fits_object,
SEXP bits_per_pixel,
SEXP naxes)
{
fits_file_t * fits = R_ExternalPtrAddr (fits_object);
if (NULL != fits && NULL != fits->cfitsio_ptr)
{
int i;
int num_of_dimensions;
LONGLONG * axes_dimensions;
num_of_dimensions = length (naxes);
axes_dimensions = (LONGLONG *) R_alloc (sizeof (LONGLONG),
num_of_dimensions);
for (i = 0; i < num_of_dimensions; ++i)
axes_dimensions[i] = (LONGLONG) (REAL(naxes)[i]);
fits_create_imgll (fits->cfitsio_ptr,
INTEGER(bits_per_pixel)[0],
num_of_dimensions,
axes_dimensions,
&(fits->status));
}
return R_NilValue;
}
static int
vips_fits_set_header( VipsFits *fits, VipsImage *in )
{
int status;
int bitpix;
int i;
status = 0;
fits->naxis = 3;
fits->naxes[0] = in->Xsize;
fits->naxes[1] = in->Ysize;
fits->naxes[2] = in->Bands;
for( i = 0; i < VIPS_NUMBER( fits2vips_formats ); i++ )
if( fits2vips_formats[i][1] == in->BandFmt )
break;
if( i == VIPS_NUMBER( fits2vips_formats ) ) {
vips_error( "fits",
_( "unsupported BandFmt %d\n" ), in->BandFmt );
return( -1 );
}
bitpix = fits2vips_formats[i][0];
fits->datatype = fits2vips_formats[i][2];
#ifdef VIPS_DEBUG
VIPS_DEBUG_MSG( "naxis = %d\n", fits->naxis );
for( i = 0; i < fits->naxis; i++ )
VIPS_DEBUG_MSG( "%d) %lld\n", i, fits->naxes[i] );
VIPS_DEBUG_MSG( "bitpix = %d\n", bitpix );
#endif /*VIPS_DEBUG*/
if( fits_create_imgll( fits->fptr, bitpix, fits->naxis,
fits->naxes, &status ) ) {
vips_fits_error( status );
return( -1 );
}
if( vips_image_map( in,
(VipsImageMapFn) vips_fits_write_meta, fits ) )
return( -1 );
return( 0 );
}
