13 Feb
2004
13 Feb
'04
9:03 a.m.
Steve Harris wrote:
On Tue, Feb 10, 2004 at 02:26:03 +0100, Vincent Touquet
wrote:
i'm a bit skeptical about this GL + audio business. over the years,
these splendid 3D accelerator cards have 'improved' to the point of
being one of the noisiest parts in a system, and consuming serious
wattage.
true open-source support for these chips verges on non-existence.
wasn't the point of linux to have an all-open-source system? i for
one won't run binary GL drivers.
and if you design your application around it, a system that does
GL in software will suffer big time from the cache, memory bandwidth
*and* CPU cycle hit. i've seen some simple GL-enabled applications
freeze software GL systems to a virtual standstill because it never
dawned on the author that this has to be taken into account.
i do agree that GL is a potentially important optimization. i don't
expect the potential to manifest itself within the next cople of years
though. :)
tim
On Tue, Feb 10, 2004 at 08:31:10AM -0500, Dave
Phillips wrote:
Hear hear. I think that GL accelration is a (potentially) important
optimisation for audio apps - it saves a lot of cache and memory bandwidth
that can be better used number-crunching audio. Machine is an 800 MHz AMD w. 512 MB RAM, system
is Planet CCRMA RH 9.
Any help on this matter would be greatly appreciated. I haven't had this
kind of noise problem before now, I'd certainly like to get rid of it,
and I'm willing to try about anything at this point (as long as it
doesn't cost much ;).
Personally, if I would have to buy a new video card, I'd rather give the
money to a knowledgeable hacker for a workaround :)
I'm not yet sure if the problem will affect me (I think it will though,
I want to use jack in realtime mode together with accelerated 3D on a
laptop, which I will get in a few weeks time), but if it does, I'll certainly
consider forking over some cash to pour in a GPLed solution.