//
// Programmer:    Craig Stuart Sapp <craig@ccrma.stanford.edu>
// Creation Date: Sun Nov 23 16:23:32 PST 1997
// Last Modified: Mon Nov 24 13:46:59 PST 1997
// Filename:      ...sig/src/control/MidiPort/doc/directOut.cc
// Syntax:        C++
// $Smake:        g++ -O3 -o %b %f && strip %b
//
// Description:   Plays the MIDI note 60 on the internal soundcard
//		  (AudioTrix Pro)


#include <sys/soundcard.h>
#include <sys/ioctl.h>
#include <fcntl.h>
#include <unistd.h>
#include <iostream.h>

int main(void) {
   unsigned char buffer[1000] = {0};        // MIDI output buffer
   int numElements = 0;                     // count of elements in buffer
   int midi_fd;                             // file descriptor
 
   midi_fd = open("/dev/dmmidi0", O_RDWR);
   if (midi_fd == -1) {
      cerr << "Unable to open MIDI port." << endl;
      exit(1);
   }

   // place a NOTE ON into the buffer
   buffer[0] = 0x90;                      // note on-command, channel 1
   buffer[1] = 60;                        // pitch: middle C
   buffer[2] = 0x7f;                      // velocity: loudest possible
   numElements = 3;

   // send out the contents of the buffer
   int flag = write(midi_fd, buffer, numElements);
   if (flag == -1) {
      cerr << "Error: could not write data to device." << endl;
      exit(1);
   }

   flag = close(midi_fd);
   if (flag == -1) {
      cerr << "Error: could not close MIDI port." << endl;
      exit(1);
   }
 
   return 0;
}