1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package org.chromium.latency.walt; 18 19 import android.content.BroadcastReceiver; 20 import android.content.Context; 21 import android.content.Intent; 22 import android.os.Bundle; 23 import android.support.v4.app.Fragment; 24 import android.text.method.ScrollingMovementMethod; 25 import android.view.LayoutInflater; 26 import android.view.View; 27 import android.view.ViewGroup; 28 import android.widget.TextView; 29 30 import java.util.Locale; 31 32 public class MidiFragment extends Fragment 33 implements View.OnClickListener, BaseTest.TestStateListener { 34 35 private SimpleLogger logger; 36 private TextView textView; 37 private View startMidiInButton; 38 private View startMidiOutButton; 39 private HistogramChart latencyChart; 40 private MidiTest midiTest; 41 MidiFragment()42 public MidiFragment() { 43 // Required empty public constructor 44 } 45 46 @Override onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)47 public View onCreateView(LayoutInflater inflater, ViewGroup container, 48 Bundle savedInstanceState) { 49 logger = SimpleLogger.getInstance(getContext()); 50 midiTest = new MidiTest(getActivity()); 51 midiTest.setTestStateListener(this); 52 53 final View view = inflater.inflate(R.layout.fragment_midi, container, false); 54 textView = (TextView) view.findViewById(R.id.txt_box_midi); 55 startMidiInButton = view.findViewById(R.id.button_start_midi_in); 56 startMidiOutButton = view.findViewById(R.id.button_start_midi_out); 57 latencyChart = (HistogramChart) view.findViewById(R.id.latency_chart); 58 textView.setMovementMethod(new ScrollingMovementMethod()); 59 return view; 60 } 61 62 @Override onResume()63 public void onResume() { 64 super.onResume(); 65 66 // Register this fragment class as the listener for some button clicks 67 startMidiInButton.setOnClickListener(this); 68 startMidiOutButton.setOnClickListener(this); 69 70 textView.setText(logger.getLogText()); 71 logger.registerReceiver(logReceiver); 72 } 73 74 @Override onPause()75 public void onPause() { 76 logger.unregisterReceiver(logReceiver); 77 super.onPause(); 78 } 79 80 @Override onClick(View v)81 public void onClick(View v) { 82 switch (v.getId()) { 83 case R.id.button_start_midi_in: 84 disableButtons(); 85 latencyChart.setVisibility(View.VISIBLE); 86 latencyChart.clearData(); 87 latencyChart.setLegendEnabled(false); 88 latencyChart.getBarChart().getDescription().setText("MIDI Input Latency [ms]"); 89 midiTest.testMidiIn(); 90 break; 91 case R.id.button_start_midi_out: 92 disableButtons(); 93 latencyChart.setVisibility(View.VISIBLE); 94 latencyChart.clearData(); 95 latencyChart.setLegendEnabled(false); 96 latencyChart.getBarChart().getDescription().setText("MIDI Output Latency [ms]"); 97 midiTest.testMidiOut(); 98 break; 99 } 100 } 101 disableButtons()102 private void disableButtons() { 103 startMidiInButton.setEnabled(false); 104 startMidiOutButton.setEnabled(false); 105 } 106 107 private BroadcastReceiver logReceiver = new BroadcastReceiver() { 108 @Override 109 public void onReceive(Context context, Intent intent) { 110 String msg = intent.getStringExtra("message"); 111 textView.append(msg + "\n"); 112 } 113 }; 114 115 @Override onTestStopped()116 public void onTestStopped() { 117 if (!midiTest.deltasOutputTotal.isEmpty()) { 118 latencyChart.setLegendEnabled(true); 119 latencyChart.setLabel(String.format( 120 Locale.US, "Median=%.1f ms", Utils.median(midiTest.deltasOutputTotal))); 121 } else if (!midiTest.deltasInputTotal.isEmpty()) { 122 latencyChart.setLegendEnabled(true); 123 latencyChart.setLabel(String.format( 124 Locale.US, "Median=%.1f ms", Utils.median(midiTest.deltasInputTotal))); 125 } 126 LogUploader.uploadIfAutoEnabled(getContext()); 127 startMidiInButton.setEnabled(true); 128 startMidiOutButton.setEnabled(true); 129 } 130 131 @Override onTestStoppedWithError()132 public void onTestStoppedWithError() { 133 onTestStopped(); 134 latencyChart.setVisibility(View.GONE); 135 } 136 137 @Override onTestPartialResult(double value)138 public void onTestPartialResult(double value) { 139 latencyChart.addEntry(value); 140 } 141 hasMidi(Context context)142 public static boolean hasMidi(Context context) { 143 return context.getPackageManager(). 144 hasSystemFeature("android.software.midi"); 145 } 146 } 147