Re: [linux-audio-dev] Good sample MIDI code

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Subject: Re: [linux-audio-dev] Good sample MIDI code
From: David J. Topper (topper_AT_virginia.edu)
Date: pe syys   18 1998 - 13:29:05 EDT

rob wrote:
>
> http://www.bright.net/~dlphilp/dp_devseq.html at least for midi
> out. midi in with the raw /dev/midi is the same but uses reads instead of
> writes. make sure you do a search and replace for &lt to < as this
> renderes improperly in my browser.

The switch to midiout is not so straightfoward. Mainly because one is
checking data instead of filling a buffer and sending it out. The
following:

  void note_on(int chan, int num, int vel)
  {
    SEQ_MIDIOUT(DEVNUM,MD_NOTEON+chan); /* note that SEQ_MIDIOUT sends
the device number and one data byte */
    SEQ_MIDIOUT(DEVNUM,num); /* note-number */
    SEQ_MIDIOUT(DEVNUM,vel); /* velocity */
    seqbuf_dump(); /* out they go... */
  }

doesn't translate all that well into:

check_note_on()

and so forth.

See what I mean?

DT 

--
Technical Director, Virginia Center for Computer Music
Programmer / Analyst, Dean's Office (School of A&S)
http://www.panix.com/~topper
(804) 924-6887

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