16 Jun
2005
16 Jun
'05
12:30 p.m.
i don't
think that, even if we had had fons on board at that time, that
the idea of using a DLL rather than interrupts to truly drive the whole
system would have occured to anyone in 1996-2000.
Probably not, but I remember we (at Alcatel) used them in soft DSP
systems at that time. But the DLL isn't really 'driving' anything,
it just provides more accurate timing *information* than what you can
get without it in the presence of interrupt and scheduling latencies.
Most audio apps don't need this info. developers
would have whined to LKML that it was unacceptable to remove
the open/read/write/close model from the official linux audio API.
There is nothing really wrong with that model per se, and you can easily
build a callback system on top of it, as jackd does.