Reversing an image

[Ben Farhner <benjamin at farhner dot com>]

Hi,

Okay, I have a thread that reverses an image. Heres the code:

  for i=0 to p.width-1
    for j=0 to p.height-1
      c=r1.pixel(i,j)
      r2.pixel(i,j)=rgb(255-c.red,255-c.green,255-c.blue)
      progress.prog.value=progress.prog.value+1
    next
    progress.prog.value=progress.prog.value+1
  next

The problem is, that takes over 8 seconds. Other programs, such as  
Seashore, do it instantly. I'm using RGBSurfaces, which is supposed  
to be faster, but is there a faster way? I'm on RB 5.2.4, Mac OS X  
10.4.3. Thanks,

Ben Farhner
CEO / Head Developer
farhnware
http://macware.byethost5.com


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