Re: [Gimp-developer] Alpha compositing

[JS <js@xxxxxxxx>]

Hi Bill,

   Thanks for the ref. I had already found that code though. However, 
what I'm looking for right now are alpha-blending ops.

   None of the functions that are found in 
app/paint-funcs/paint-funcs-generic.h seem to make use of the alpha 
channel in their calculation. None of them seem to be one of the 
Porter-Duff operations. But since gimp has a layer mode that seems to 
take into account alphas, I'm wondering where the code for that is.

   Cheers,

   JS

William Skaggs wrote:

> Hi Jean-Sébastien,
>
>  Probably the code you are looking for can be found in
> app/paint-funcs/paint-funcs-generic.h.
>
>  Also you might find it helpful to take a look at this
> bug report:
>
> http://bugzilla.gnome.org/show_bug.cgi?id=162395
>
> Best,
>  -- Bill
>
>
>
>
>
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>  


--
Jean-Sébastien Senécal
Freelance programmer / Programmeur autonome
M. Sc. Computer Sciences / Informatique, Université de Montréal
Mail: js@xxxxxxxx
Web: http://drone.ws