[Gimp-developer] Overlay Mode - fix.

[Paul Geraskin <paul_geraskin mail ru>]

Hi all again!

I did a fix for Gimp 2.9 Overlay Mode. Can you check it?

https://bugzilla.gnome.org/show_bug.cgi?id=673501 - issue
https://bugzilla.gnome.org/attachment.cgi?id=228551 - my patch

The Overlay mode fully compatible with Krita, Photoshop, ORA, Painter.

The formula was taken from here: http://en.wikipedia.org/wiki/Blend_modes

Mitch said that it's possible to set "New Overlay" and remain "Legecy 
Overlay". And he said to talk to GEGL guys about this to get the 
implementation of new Overlay mode to Gimp 2.9/2.10.

Can you review my patch and implement it into the 2.9/2.10 release?

Also, you can experiment with my psd file for testing:
http://dl.dropbox.com/u/26887202/blender/ee.png
http://dl.dropbox.com/u/26887202/blender/ee.psd

Thanks.