Пример #1
0
static int
tiff2vips( const char *name, IMAGE *out, gboolean header_only )
{
	char filename[FILENAME_MAX];
	char mode[FILENAME_MAX];
	char *p, *q;
	int page;
	int seq;

	im_filename_split( name, filename, mode );

	page = 0;
	seq = 0;
	p = &mode[0];
	if( (q = im_getnextoption( &p )) ) {
		page = atoi( q );
	}
	if( (q = im_getnextoption( &p )) ) {
		if( im_isprefix( "seq", q ) )
			seq = 1;
	}

	/* We need to be compatible with the pre-sequential mode 
	 * im_tiff2vips(). This returned a "t" if given a "p" image, since it
	 * used writeline.
	 *
	 * If we're writing the image to a "p", switch it to a "t". And only
	 * for non-tiled (strip) images which we write with writeline.
	 *
	 * Don't do this for header read, since we don't want to force a
	 * malloc if all we are doing is looking at fields.
	 */

#ifdef HAVE_TIFF
	if( !header_only &&
		!seq &&
		!vips__istifftiled( filename ) &&
		out->dtype == VIPS_IMAGE_PARTIAL ) {
		if( vips__image_wio_output( out ) ) 
			return( -1 );
	}

	if( header_only ) {
		if( vips__tiff_read_header( filename, out, page ) )
			return( -1 );
	}
	else {
		if( vips__tiff_read( filename, out, page ) )
			return( -1 );
	}
#else
	vips_error( "im_tiff2vips", _( "no TIFF support in your libvips" ) ); 

	return( -1 );
#endif /*HAVE_TIFF*/

	return( 0 );
}
Пример #2
0
static int
jpeg2vips( const char *name, IMAGE *out, gboolean header_only )
{
	char filename[FILENAME_MAX];
	char mode[FILENAME_MAX];
	char *p, *q;
	int shrink;
	int seq;
	gboolean fail_on_warn;

	/* By default, we ignore any warnings. We want to get as much of
	 * the user's data as we can.
	 */
	fail_on_warn = FALSE;

	/* Parse the filename.
	 */
	im_filename_split( name, filename, mode );
	p = &mode[0];
	shrink = 1;
	seq = 0;
	if( (q = im_getnextoption( &p )) ) {
		shrink = atoi( q );

		if( shrink != 1 && shrink != 2 && 
			shrink != 4 && shrink != 8 ) {
			im_error( "im_jpeg2vips", 
				_( "bad shrink factor %d" ), shrink );
			return( -1 );
		}
	}
	if( (q = im_getnextoption( &p )) ) {
		if( im_isprefix( "fail", q ) ) 
			fail_on_warn = TRUE;
	}
	if( (q = im_getnextoption( &p )) ) {
		if( im_isprefix( "seq", q ) )
			seq = 1;
	}

	/* Don't use vips_jpegload() ... we call the jpeg func directly in
	 * order to avoid the foreign.c mechanisms for load-via-disc and stuff
	 * like that.
	 */

	/* We need to be compatible with the pre-sequential mode 
	 * im_jpeg2vips(). This returned a "t" if given a "p" image, since it
	 * used writeline.
	 *
	 * If we're writing the image to a "p", switch it to a "t".
	 */

	if( !header_only &&
		!seq &&
		out->dtype == VIPS_IMAGE_PARTIAL ) {
		if( vips__image_wio_output( out ) ) 
			return( -1 );
	}

#ifdef HAVE_JPEG
	if( vips__jpeg_read_file( filename, out, 
		header_only, shrink, fail_on_warn, TRUE ) )
		return( -1 );
#else
	vips_error( "im_jpeg2vips", 
		"%s", _( "no JPEG support in your libvips" ) ); 

	return( -1 );
#endif /*HAVE_JPEG*/

	return( 0 );
}