Lua scripts: Added the 'table' library. Added GPL headers to DawnBringer's scripts (thanks!). 2 cosmetic fixes in scripts.

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1391 416bcca6-2ee7-4201-b75f-2eb2f807beb1

share/grafx2/scripts/bru_db_GrayscaleDesat.lua

@@ -2,6 +2,13 @@
 --by Richard Fhager 
 --http://hem.fyristorg.com/dawnbringer/
 
+-- Copyright 2010 Richard Fhager
+--
+-- This program is free software; you can redistribute it and/or
+-- modify it under the terms of the GNU General Public License
+-- as published by the Free Software Foundation; version 2
+-- of the License. See <http://www.gnu.org/licenses/>
+
 -- This script was adopted from Evalion, a Javascript codecrafting/imageprocessing project
 --http://goto.glocalnet.net/richard_fhager/evalion/evalion.html 
 
@@ -12,9 +19,9 @@ percent = 100
 function desaturate(percent,r,g,b) -- V1.0 by Richard Fhager
  p = percent / 100
  a = (math.min(math.max(r,g,b),255) + math.max(math.min(r,g,b),0)) * 0.5 * p
- r = math.min(math.max(r + (a-r*p),0),255) -- Capping may not be needed if mathcolor/setcolor is updated
- g = math.min(math.max(g + (a-g*p),0),255)
- b = math.min(math.max(b + (a-b*p),0),255)
+ r = r + (a-r*p)
+ g = g + (a-g*p)
+ b = b + (a-b*p)
  return r,g,b
 end
 --