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// midiserver.c - example program, receive O2, send MIDI
//
// This program works with midiclient.c.
//
#include "o2.h"
#include "stdio.h"
#include "string.h"
#include "portmidi.h"
#include "porttime.h" // maybe not needed
#define TIME_PROC ((int32_t (*)(void *)) Pt_Time)
#define TIME_INFO NULL
PmStream *midi_out = NULL; // MIDI output stream
#ifdef WIN32
#include "usleep.h" // special windows implementation of sleep/usleep
#else
#include <unistd.h>
#endif
// this is a handler for incoming messages. It simply builds a
// MIDI message and sends it using portmidi
//
void midi_handler(o2_msg_data_ptr msg, const char *types,
o2_arg ** argv, int argc, void *user_data)
{
int status = argv[0]->i32;
int data1 = argv[1]->i32;
int data2 = argv[2]->i32;
Pm_WriteShort(midi_out, 0, Pm_Message(status, data1, data2));
printf("Pm_WriteShort(%2x %2x %2x at %g\n", status, data1, data2, o2_time_get());
}
int main(int argc, const char * argv[])
{
o2_debug_flags("3");
// start portmidi
Pt_Start(1, 0, 0);
int dev_num = Pm_GetDefaultOutputDeviceID();
printf("Using default PortMidi ouput device number %d\n", dev_num);
Pm_OpenOutput(&midi_out, dev_num, NULL, 0, TIME_PROC, TIME_INFO, 0);
o2_initialize("miditest"); // ideally, this application name should be
// passed from the command line so we provide service to any application
// we are the master clock
o2_clock_set(NULL, NULL);
o2_service_new("midi");
// add our handler for incoming messages to each server address
o2_method_new("/midi/midi", "iii", &midi_handler, NULL, TRUE, TRUE);
printf("Here we go! ...\ntime is %g.\n", o2_time_get());
while (TRUE) {
o2_poll();
usleep(1000); // 1ms
}
o2_finish();
Pm_Close(midi_out);
Pm_Terminate();
return 0;
}
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