[gmpi] Re: New Reqs 3.8 - Events
- From: "Jeff McClintock" <jeffmcc@xxxxxxxxxx>
- To: <gmpi@xxxxxxxxxxxxx>
- Date: Sun, 21 Dec 2003 09:55:29 +1300
>Anyway, we're talking about ADDs and SUBs here.....
Agree, 32 or 64 bit timestamps aren't a question of efficiency.
Parameter changes at 30 Hz compared to streaming audio at 96,000Hz are like
a trickle next to a fire hydrant.
And several of you are keen on 64bit audio samples, so why not 64bit
timestamps?
It's really a question of which is most convinent for us programmers. If
that's 32 or 64 is fine with me.
Best Regards,
Jeff
----- Original Message -----
From: "David Olofson" <david@xxxxxxxxxxx>
To: <gmpi@xxxxxxxxxxxxx>
Sent: Saturday, December 20, 2003 8:45 AM
Subject: [gmpi] Re: New Reqs 3.8 - Events
On Friday 19 December 2003 20.22, Chris Grigg wrote:
> But if in order to produce the relative timestamps the host has to
> do the absolute-->relative conversion before feeding events to the
> plug anyway, where's the optimization? Plug + host performance is
> about the same either way, no?
Depends a bit on how events are generated - and note that they may as
well come from other plugins, which work in the relative timestamp
domain already.
Anyway, we're talking about ADDs and SUBs here. Getting the base time
might cost a few cycles once per process() call, whereas the extra
bandwidth and 64 bit emulation on 32 bit CPUs impact every timestamp
operation, including just checking how many samples to process until
the next event.
//David Olofson - Programmer, Composer, Open Source Advocate
.- Audiality -----------------------------------------------.
| Free/Open Source audio engine for games and multimedia. |
| MIDI, modular synthesis, real time effects, scripting,... |
`-----------------------------------> http://audiality.org -'
--- http://olofson.net --- http://www.reologica.se ---
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