receive midi in zones

main.c

@@ -12,10 +12,13 @@
 // function declarations:
 void     alsa_error           (const char *format, ...);
 void*    midiinfunction       (void * arg);
+void     midi_in_dispatch     (void * arg, unsigned char * m);
+
 
 typedef struct {
   snd_rawmidi_t* midiin;
   snd_rawmidi_t* midiout;
+  unsigned char hui_in_zone;
 } housicIO;
 
 int main(int argc, char *argv[]) {
@@ -23,7 +26,7 @@ int main(int argc, char *argv[]) {
   int mode = SND_RAWMIDI_SYNC;
   pthread_t midiinthread;
 
-  housicIO IOs = {NULL,NULL};
+  housicIO IOs = {NULL,NULL,0};
   
   //  snd_rawmidi_t* midiin = NULL;
   const char* portname = "virtual";
@@ -69,12 +72,34 @@ void *midiinfunction(void *arg) {
       message[3-i] = (unsigned char) buffer[status-i];
     }
 
-    printf("%d: %x %x %x\n", status, message[0], message[1], message[2]);
+    midi_in_dispatch(IOs,message);
+
     fflush(stdout);
   }
 }
 
 
+
+//////////////////////////////
+//
+// midi_in_dispatch -- Thread function which waits around until a MIDI 
+//      input byte arrives and then react correspondingly
+//
+
+void midi_in_dispatch(void *arg, unsigned char *m) {
+  housicIO* IOs = (housicIO*)arg;
+
+  if (m[0] == 0xb0) {
+    // received a CC message on MIDIchannel 1
+    if (m[1] == 0x0f) {
+      // received a zone select
+      IOs->hui_in_zone = m[2];
+    }
+
+  }
+}
+
+
 //////////////////////////////
 //
 // error -- print error message