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package com.ccrma.faust;
import android.content.Context;
import android.media.midi.MidiDevice;
import android.media.midi.MidiDeviceInfo;
import android.media.midi.MidiManager;
import android.media.midi.MidiOutputPort;
import android.media.midi.MidiReceiver;
import android.os.Build;
import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.WindowManager;
import android.widget.RelativeLayout;
import com.DspFaust.DspFaust;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends AppCompatActivity {
private DspFaust dspFaust;
private Context context;
private RelativeLayout mainLayout;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
context = getApplicationContext();
startFaustDsp();
mainLayout = (RelativeLayout) findViewById(R.id.activity_main);
MultiKeyboard multiKeyboard = new MultiKeyboard(this, dspFaust, null);
mainLayout.addView(multiKeyboard);
if(Build.VERSION.SDK_INT >= 23) {
// MIDI Support
final FaustMidiReceiver midiReceiver = new FaustMidiReceiver();
final MidiManager m = (MidiManager) context.getSystemService(Context.MIDI_SERVICE);
if (m == null) {
Log.e("", "could not open MIDI service");
return;
}
final MidiDeviceInfo[] infos = m.getDevices();
// opening all the available ports and devices already connected
for (int i = 0; i < infos.length; i++) {
final int currentDevice = i;
m.openDevice(infos[i], new MidiManager.OnDeviceOpenedListener() {
@Override
public void onDeviceOpened(MidiDevice device) {
if (device == null) {
Log.e("", "could not open device");
} else {
for (int j = 0; j < infos[currentDevice].getOutputPortCount(); j++) {
MidiOutputPort outputPort = device.openOutputPort(j);
outputPort.connect(midiReceiver);
}
}
}
}, new Handler(Looper.getMainLooper()));
}
// adding any newly connected device
m.registerDeviceCallback(new MidiManager.DeviceCallback() {
public void onDeviceAdded(final MidiDeviceInfo info) {
m.openDevice(info, new MidiManager.OnDeviceOpenedListener() {
@Override
public void onDeviceOpened(MidiDevice device) {
if (device == null) {
Log.e("", "could not open device");
} else {
for (int j = 0; j < info.getOutputPortCount(); j++) {
MidiOutputPort outputPort = device.openOutputPort(j);
outputPort.connect(midiReceiver);
}
}
}
}, new Handler(Looper.getMainLooper()));
}
public void onDeviceRemoved(final MidiDeviceInfo info) {
}
}, new Handler(Looper.getMainLooper()));
}
}
private void startFaustDsp(){
if(dspFaust == null){
dspFaust = new DspFaust(Integer.valueOf(getResources().getString(R.string.sr)), Integer.valueOf(getResources().getString(R.string.bs)));
dspFaust.start();
}
}
private void stopFaustDsp(){
if(dspFaust != null){
dspFaust.stop();
dspFaust = null;
}
}
@Override
public void onPause(){
super.onPause();
dspFaust.stop();
}
@Override
public void onResume(){
super.onPause();
dspFaust.start();
}
@Override
public void onDestroy(){
super.onDestroy();
dspFaust.stop();
}
class FaustMidiReceiver extends MidiReceiver {
public void onSend(byte[] data, int offset,
int count, long timestamp) {
// we only consider MIDI messages containing 3 bytes (see is just an example)
if(count%3 == 0) {
int nMessages = count / 3; // in case the event contains several messages
for (int i = 0; i < nMessages; i++) {
int type = (int) (data[offset + i*3] & 0xF0);
int channel = (int) (data[offset + i*3] & 0x0F);
int data1 = (int) data[offset + 1 + i*3];
int data2 = (int) data[offset + 2 + i*3];
dspFaust.propagateMidi(3, timestamp, type, channel, data1, data2);
}
}
}
}
}
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