Using simple bilinear interpolation when scaling stamps up.

docs/AUTHORS.txt

@@ -7,7 +7,7 @@ bill@newbreedsoftware.com
 http://www.tuxpaint.org/
 
 
-June 17, 2002 - October 18, 2006
+June 17, 2002 - November 1, 2006
 
 $Id$
 
@@ -29,6 +29,9 @@ $Id$
   brick magic tools, improved stamp tinter, and other fixes by:
   Albert Cahalan <albert@users.sf.net>
 
+  Bilinear interpolation code based on an example by Christian Graus
+  ( http://www.codeproject.com/cs/media/imageprocessing4.asp ).
+
 
 * Graphics
 
@@ -45,6 +48,7 @@ $Id$
   * Brushes created using The GIMP
     http://www.gimp.org/
 
+
 * Starter Images
 
   * Chicken

docs/CHANGES.txt

@@ -9,7 +9,7 @@ http://www.newbreedsoftware.com/tuxpaint/
 $Id$
 
 
-2006.October.26 (0.9.17)
+2006.November.2 (0.9.17)
 
   * Tool Improvements:
     ------------------
@@ -17,6 +17,11 @@ $Id$
       (Experimental; build with "make nosvg" to disable SVG support and
       Cairo dependency.)
 
+    * Bilinear interpolation (smoothing) is done to small bitmap (PNG)
+      stamps when they are scaled up.
+      (Based on example code by Christian Graus:
+      http://www.codeproject.com/cs/media/imageprocessing4.asp )
+
   * Documentation Improvements:
     ---------------------------
     * Discussed SVG Stamps in "Extending Tux Paint."