Graeme Geldenhuys wrote:
Thanks Marc. I might have a early peak at the lcl-marc branch then. My problem is the blended colors when I enlarge a bitmap. The clMagenta color is easy to remove, but the edge of the actual image is blended with clMagenta creating a slightly non-Magenta color, which will not be picked up in my masking. Which means the resulting enlarged image has a pink halo around it.
I had the same problem when implementing it for carbon (and I'm not fully happy there, since OSX somhow remembers your operations)
What i did there was maskdraw the unscaled source, on a black alpha image (iirc) and then alpha draw the result streched. In theory there shouldn't be a mask color anymore, but somehow you still see some remains.
See the blended clMagenta in the attached image.
this one is worse than mine: http://www.dommelstein.nl/scrap/alpha_gtk.png http://www.dommelstein.nl/scrap/alpha_win32.png http://www.dommelstein.nl/scrap/alpha_carbon.png Marc _________________________________________________________________ To unsubscribe: mail [EMAIL PROTECTED] with "unsubscribe" as the Subject archives at http://www.lazarus.freepascal.org/mailarchives
