[gegl] Add doc comments for gegl-lookup

[Daniel Sabo <daniels src gnome org>]

commit 0b302ba57a65081fd3f91c20046a602be40941ae
Author: Daniel Sabo <DanielSabo gmail com>
Date:   Mon Jun 3 17:47:24 2013 -0700

    Add doc comments for gegl-lookup

 gegl/gegl-lookup.h |   22 ++++++++++++++++++++++
 1 files changed, 22 insertions(+), 0 deletions(-)
---
diff --git a/gegl/gegl-lookup.h b/gegl/gegl-lookup.h
index d1e239f..7ac9135 100644
--- a/gegl/gegl-lookup.h
+++ b/gegl/gegl-lookup.h
@@ -37,13 +37,35 @@ typedef struct GeglLookup
 } GeglLookup;
 
 
+/**
+ * gegl_lookup_new_full: (skip)
+ * @function: The function to build a lookup for
+ * @data: A user data pointer passed to lookup calls
+ * @start: Lower bound of the lookup
+ * @end: Upper bound of the lookup
+ * @precision: The precision of the lookup table
+ *
+ * Return value: a #GeglLookup
+ */
 GeglLookup *gegl_lookup_new_full  (GeglLookupFunction  function,
                                    gpointer            data,
                                    gfloat              start,
                                    gfloat              end,
                                    gfloat              precision);
+/**
+ * gegl_lookup_new: (skip)
+ * @function: The function to build a lookup for
+ * @data: A user data pointer passed to lookup calls
+ *
+ * Return value: a #GeglLookup
+ */
 GeglLookup *gegl_lookup_new       (GeglLookupFunction  function,
                                    gpointer            data);
+
+/**
+ * gegl_lookup_free: (skip)
+ * @lookup: #GeglLookup to free
+ */
 void        gegl_lookup_free      (GeglLookup         *lookup);