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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.chromium.latency.walt;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.text.method.ScrollingMovementMethod;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import java.util.Locale;
public class MidiFragment extends Fragment
implements View.OnClickListener, BaseTest.TestStateListener {
private SimpleLogger logger;
private TextView textView;
private View startMidiInButton;
private View startMidiOutButton;
private HistogramChart latencyChart;
private MidiTest midiTest;
public MidiFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
logger = SimpleLogger.getInstance(getContext());
midiTest = new MidiTest(getActivity());
midiTest.setTestStateListener(this);
final View view = inflater.inflate(R.layout.fragment_midi, container, false);
textView = (TextView) view.findViewById(R.id.txt_box_midi);
startMidiInButton = view.findViewById(R.id.button_start_midi_in);
startMidiOutButton = view.findViewById(R.id.button_start_midi_out);
latencyChart = (HistogramChart) view.findViewById(R.id.latency_chart);
textView.setMovementMethod(new ScrollingMovementMethod());
return view;
}
@Override
public void onResume() {
super.onResume();
// Register this fragment class as the listener for some button clicks
startMidiInButton.setOnClickListener(this);
startMidiOutButton.setOnClickListener(this);
textView.setText(logger.getLogText());
logger.registerReceiver(logReceiver);
}
@Override
public void onPause() {
logger.unregisterReceiver(logReceiver);
super.onPause();
}
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.button_start_midi_in:
disableButtons();
latencyChart.setVisibility(View.VISIBLE);
latencyChart.clearData();
latencyChart.setLegendEnabled(false);
latencyChart.getBarChart().getDescription().setText("MIDI Input Latency [ms]");
midiTest.testMidiIn();
break;
case R.id.button_start_midi_out:
disableButtons();
latencyChart.setVisibility(View.VISIBLE);
latencyChart.clearData();
latencyChart.setLegendEnabled(false);
latencyChart.getBarChart().getDescription().setText("MIDI Output Latency [ms]");
midiTest.testMidiOut();
break;
}
}
private void disableButtons() {
startMidiInButton.setEnabled(false);
startMidiOutButton.setEnabled(false);
}
private BroadcastReceiver logReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String msg = intent.getStringExtra("message");
textView.append(msg + "\n");
}
};
@Override
public void onTestStopped() {
if (!midiTest.deltasOutputTotal.isEmpty()) {
latencyChart.setLegendEnabled(true);
latencyChart.setLabel(String.format(
Locale.US, "Median=%.1f ms", Utils.median(midiTest.deltasOutputTotal)));
} else if (!midiTest.deltasInputTotal.isEmpty()) {
latencyChart.setLegendEnabled(true);
latencyChart.setLabel(String.format(
Locale.US, "Median=%.1f ms", Utils.median(midiTest.deltasInputTotal)));
}
LogUploader.uploadIfAutoEnabled(getContext());
startMidiInButton.setEnabled(true);
startMidiOutButton.setEnabled(true);
}
@Override
public void onTestStoppedWithError() {
onTestStopped();
latencyChart.setVisibility(View.GONE);
}
@Override
public void onTestPartialResult(double value) {
latencyChart.addEntry(value);
}
public static boolean hasMidi(Context context) {
return context.getPackageManager().
hasSystemFeature("android.software.midi");
}
}
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