Subversion Repositories Kolibri OS

--SCENE: Remap pic to RGB, diag.dith

--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 

-- Set Palette (to a predefined one)

colors = {{  0,  0,  0},

          {255,  0,  0},

          {  0,255,  0},

          {  0,  0,255}

         }

chm = {1,0,0}

for c = 1, #colors, 1 do

  setcolor(c-1,colors[c][1],colors[c][2],colors[c][3])

end

for c = #colors, 255, 1 do

  setcolor(c,0,0,0)

end

w, h = getpicturesize()

for y = 0, h - 1, 1 do

  for x = 0, w - 1, 1 do

    r,g,b = getbackupcolor(getbackuppixel(x,y));

      rn = r * chm[1+(y+0+x)%3]

      gn = g * chm[1+(y+1+x)%3]

      bn = b * chm[1+(y+2+x)%3]

      n = matchcolor(rn,gn,bn);

      putpicturepixel(x, y, n);

  end

end