comparison projects/basic_midi/render.cpp @ 197:265a527f8be8

Added MidiParser for channel messages

 Midi midi;
 bool setup(BeagleRTContext *context, void *userData)
 {
 	midi.readFrom(0);
 	midi.writeTo(0);
+	midi.enableParser(true);
 	if(context->analogFrames == 0) {
 		rt_printf("Error: this example needs the matrix enabled\n");
 		return false;
 	}
 	return true;

 enum {kVelocity, kNoteOn, kNoteNumber};
 void render(BeagleRTContext *context, void *userData)
 {
 	static float f0;
 	static float phaseIncrement = 0;
-	int message;
 	static bool noteOn = 0;
 	static int velocity = 0;
 	static int noteNumber = 0;
 	static int waitingFor = kNoteOn;
 	static int playingNote = -1;
+///*
+	int message;
+	if(0) // one way of getting the midi data is to parse them yourself (you should set midi.enableParser(false) above):
 	while ((message = midi.getInput()) >= 0){
 		rt_printf("%d\n", message);
 		switch(waitingFor){
 		case kNoteOn:
 			if(message == noteOnStatus){

 				rt_printf("NoteOn: %d, NoteNumber: %d, velocity: %d\n", noteOn, noteNumber, velocity);
 			}
 			break;
 		}
 	}
+//*/
+	int num;
+	//alternatively, you can use the built-in parser (only processes channel messages at the moment).
+	while((num = midi.getParser()->numAvailableMessages()) > 0){
+		static MidiChannelMessage message;
+		message = midi.getParser()->getNextChannelMessage();
+		message.prettyPrint();
+	}
 
 	for(unsigned int n = 0; n < context->analogFrames; n++){
 		static int count = 0;
 		static bool state = 0;
 		analogWriteFrameOnce(context, n, 1, state);