New function to render a portion of a pixbuf to a drawable. Ignores alpha

New function to render a portion of a pixbuf to a drawable. Ignores alpha

1999-10-28  Federico Mena Quintero  <federico@redhat.com>

	* src/gdk-pixbuf-render.c (gdk_pixbuf_render_to_drawable): New
	function to render a portion of a pixbuf to a drawable.  Ignores
	alpha information and takes in a GC.
	(gdk_pixbuf_render_to_drawable_alpha): New function to render a
	portion of a pixbuf to a drawable.  It automatically creates a GC
	and a clipping mask for alpha pixbufs.