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Re: Alpha compositing in gnustep-back

From: Adam Fedor
Subject: Re: Alpha compositing in gnustep-back
Date: Sun, 28 Jul 2002 20:06:33 -0600
User-agent: Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.0rc2) Gecko/20020513

Jeff Teunissen wrote:
Adam Fedor wrote:

Jeff Teunissen wrote:


As part of trying to understand the functions, I partially rewrote the
fast paths for them. The code is shorter, but it may be slower since
the math is done in floating point.

It's about 10% slower in my tests. But that may not be accurate.

I've done a little bit of work to make it faster. The math is integer now,
and there's some more avoidance of unnecessary work. It feels a little
faster (to me, at least).

I added this. Thanks. It's a little faster and probably a better method.

Adam Fedor, Digital Optics Corp.      | I'm glad I hate spinach, because
http://www.doc.com                    | if I didn't, I'd eat it, and you
                                      | know how I hate the stuff.

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