[gegl] comments

[Nicolas Robidoux <nrobidoux src gnome org>]

commit 10bcfcaa02f17fe1289a54875c2a5ea1d0315730
Author: Nicolas Robidoux <nrobidoux git gnome org>
Date:   Wed Jan 2 11:49:11 2013 -0500

    comments

 gegl/buffer/gegl-sampler-lohalo.c |    4 ++--
 gegl/buffer/gegl-sampler-nohalo.c |   20 ++++++++++----------
 2 files changed, 12 insertions(+), 12 deletions(-)
---
diff --git a/gegl/buffer/gegl-sampler-lohalo.c b/gegl/buffer/gegl-sampler-lohalo.c
index 5e55a24..2b29d94 100644
--- a/gegl/buffer/gegl-sampler-lohalo.c
+++ b/gegl/buffer/gegl-sampler-lohalo.c
@@ -24,7 +24,7 @@
  *
  * The Lohalo ("Low Halo") sampler is a Jacobian-adaptive blend of
  * sigmoidized tensor filtering with the Mitchell-Netravali Keys cubic
- * filter used as an upsampler (thus is unscaled), with
+ * filter used as an upsampler (and consequently unscaled), with
  * non-sigmoidized (plain linear light) EWA (Elliptical Weighted
  * Averaging) filtering with the Robidoux Keys cubic, which is used
  * whenever some downsampling occurs and consequently is appropriately
@@ -47,7 +47,7 @@
  *
  * This code owes a lot to R&D performed for ImageMagick by
  * N. Robidoux and Anthony Thyssen, and student research performed by
- * A. Turcotte and C. Racette.
+ * Adam Turcotte and Chantal Racette.
  *
  * Sigmoidization was invented by N. Robidoux as a method of
  * minimizing the over and undershoots that arise out of filtering
diff --git a/gegl/buffer/gegl-sampler-nohalo.c b/gegl/buffer/gegl-sampler-nohalo.c
index eea7e86..e727de7 100644
--- a/gegl/buffer/gegl-sampler-nohalo.c
+++ b/gegl/buffer/gegl-sampler-nohalo.c
@@ -41,13 +41,13 @@
  * themselves: It is done to accommodate GEGL's preferred pixel data
  * management system.
  *
- * TODO: The teepee filter probably should be replaced by filtering
- * with the triangle (bilinear, Mexican hat function) filter, using
- * clamped parallelograms instead of clamped ellipses (which I believe
- * has never been done, even though it's a fairly obvious thing to
- * do). It has better antialiasing, and is not much blurrier, although
- * the slight added blur is probably a good thing when downsampling
- * just a little bit.
+ * TODO: The teepee downsampling filter probably should be replaced by
+ * filtering with the triangle (a.k.a. bilinear, Mexican hat function)
+ * downsampling filter, using clamped parallelograms instead of
+ * clamped ellipses (which I believe has never been done, even though
+ * it's a fairly obvious thing to do). It has better antialiasing, and
+ * is not much blurrier, although the slight added blur is probably a
+ * good thing when downsampling just a little bit.
  */
 
 /*
@@ -153,9 +153,9 @@
 #include "gegl-sampler-nohalo.h"
 
 /*
- * NOHALO_MINMOD is an implementation of the minmod function which
- * only needs two "conditional moves."
- * NOHALO_MINMOD(a,b,a_times_a,a_times_b) "returns"
+ * NOHALO_MINMOD is a novel implementation of the minmod function
+ * which only needs two "conditional moves." It was probably invented
+ * by N. Robidoux.  NOHALO_MINMOD(a,b,a_times_a,a_times_b) "returns"
  * minmod(a,b). The macro parameter ("input") a_times_a is assumed to
  * contain the square of a; a_times_b, the product of a and b.
  *