[directmusic] Sequencer
- From: "Richard E. Grant" <mailing_lists@xxxxxxxxxx>
- To: directmusic@xxxxxxxxxxxxx
- Date: Mon, 10 Feb 2003 20:20:28 -0500
I have written a sequencer that runs on 9x using the multimedia API and
timer (timeSetEvent etc...), it thunks to a 16 bit dll where all the
timer/sequencer code resides. Flat thunking isn't allowed on NT/2000/XP so
this method doesn't work there. I made a version of my sequencer dll that
doesn't use thunking, it uses the 32 bit multimedia timer. It works on XP,
but it's not stable. For example, I can make playback slow down by resizing
windows.
So, maybe Directmusic is the answer? I haven't looked into it much yet but
it looks like it has a bunch of high level stuff that's of little or no use
to me. I need low level control, the ability to (potentially) send messages
to the main app based on current time, as well as certain types of MIDI
events. In other words I potentially need to do something custom on every
MIDI event and/or every MIDI clock. Setting up a stream of MIDI events and
handing them off to be played is not enough control for my purposes.
Is Directmusic the way to go here, and if so, where is a good place to
start documentation and sample code wise?
Or, is there some other way? If I could just get a stable timer everything
would be solved (all the other code is already written). It works fine on
win9x. Hopefully I'm just missing something obvious...
And a question for the future, what's the best way to go to have digital
audio as well and have the audio and MIDI play back in sync? I've done a
little bit of streaming audio with DirectX and it was pretty straight
forward, but I'm not sure how to get MIDI integrated with that process.
Richard
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