[Bf-committers] Code optimisation

[Douglas Bischoff]

On Apr 22, 2004, at 17:57, Kenneth Styrberg wrote:

> Hi, I did some optimisation in interface_draw.c. I havn't tested how 
> much it improves performance, at least the code looks  a tiny winy bit 
> cleaner. Maybe all compilers do this optimisation at compile time?

Hmmmm... this one sounds like a potential candidate for vector 
optimization.

Any time there's a series of equations which all operate the same but 
on different input variables you can create a vector equation. Modern 
chips have vector acceleration routines which make this stuff much 
faster. I'm no expert (heh) and couldn't find anywhere to really START 
looking for this kind of thing, but if someone were serious about it 
they'd probably find some references on the web about vector 
computations and how it might be applied to, say, the rendering engine.

Just a though,

-Bish