[E-devel] gfx_routines

[Jose O G. <jos...@ju...>]

> Enlightenment CVS committal
> 
> Author  : raster
> Project : e17
> Module  : proto
> 
> Dir     : e17/proto/gfx_routines
> 
> 
> Modified Files:
>	blend.c 
> 
> 
> Log Message:
> 
> 
> jose came up with some nice idea for a faster c blender... much nicer
:)
> 

	Oh no, I can't take credit for coming up with that particular routine.

	I spent an hour coming up with a variety of c blend routines, some
nearly
fast (but not quite) as that one, but via a different means, and some
that were
similar in approach but gave incorrect results for the alpha component...
	I suspected there was a way to do it via that approach, but I ran out of
time and didn't think I was going to get it any time soon...

	So I decided to take look at what's being done by the people who
actually
do know what they're doing - namely I took a look at the xserver sources.
	There, in the CVS dir "xserver/fb/fbpict.h" I found some code that gave
me the missing piece for how to do this - it was then a trivial matter to
write things out as we wanted them.

	All credit must go to whoever came up with the idea found in that
xserver
code, not me.


	jose.