[gegl] gegl-sampler.c: comments

[Nicolas Robidoux <nrobidoux src gnome org>]

commit 50c7f37ae323e4c715e17ed8da00487f3887cc6e
Author: Nicolas Robidoux <nrobidoux git gnome org>
Date:   Mon Dec 3 20:41:45 2012 -0500

    gegl-sampler.c: comments

 gegl/buffer/gegl-sampler.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)
---
diff --git a/gegl/buffer/gegl-sampler.c b/gegl/buffer/gegl-sampler.c
index 4ebed0f..0c5ca77 100644
--- a/gegl/buffer/gegl-sampler.c
+++ b/gegl/buffer/gegl-sampler.c
@@ -250,11 +250,11 @@ gegl_sampler_get_ptr (GeglSampler *const sampler,
        * assuming that it is more likely that further access is to the
        * right or down of our currently requested
        * position. Consequently, we move the top left corner of the
-       * context_rect by about one fourth of the maximal distance we
-       * can (one fourth of one half = one eight). Given that the
+       * context_rect by about one half of the maximal distance we
+       * can (one half of one half = one fourth). Given that the
        * maximum width and height of the fetch_rectangle is 64, so
-       * that half of it is 32, one fourth of the elbow room is at
-       * most 8. If context_rect is large, the corner is not moved
+       * that half of it is 32, one half of the elbow room is at
+       * most 16. If context_rect is large, the corner is not moved
        * much if at all, as should be.
        */
       fetch_rectangle.x =
@@ -423,11 +423,11 @@ gegl_sampler_get_from_mipmap (GeglSampler *const sampler,
        * assuming that it is more likely that further access is to the
        * right or down of our currently requested
        * position. Consequently, we move the top left corner of the
-       * context_rect by about one fourth of the maximal distance we
-       * can (one fourth of one half = one eight). Given that the
+       * context_rect by about one half of the maximal distance we
+       * can (one half of one half = one fourth). Given that the
        * maximum width and height of the fetch_rectangle is 64, so
-       * that half of it is 32, one fourth of the elbow room is at
-       * most 8. If context_rect is large, the corner is not moved
+       * that half of it is 32, one half of the elbow room is at
+       * most 16. If context_rect is large, the corner is not moved
        * much if at all, as should be.
        */
       fetch_rectangle.x =