Make remote discovery faster. Fix the bitrate slider. Change some toast text.

src/com/limelight/AdvancedSettings.java

@@ -9,6 +9,7 @@ import android.os.Bundle;
 import android.widget.CompoundButton;
 import android.widget.RadioButton;
 import android.widget.SeekBar;
+import android.widget.SeekBar.OnSeekBarChangeListener;
 import android.widget.TextView;
 import android.widget.CompoundButton.OnCheckedChangeListener;
 
@@ -17,6 +18,9 @@ public class AdvancedSettings extends Activity {
 	private RadioButton forceSoftDec, autoDec, forceHardDec;
 	private SeekBar bitrateSlider;
 	private TextView bitrateLabel;
+	
+	private static final int BITRATE_FLOOR = 1;
+	private static final int BITRATE_CEILING = 100;
 
 	@Override
 	public void onPause() {
@@ -49,7 +53,7 @@ public class AdvancedSettings extends Activity {
 
 		prefs = getSharedPreferences(Game.PREFS_FILE_NAME, Context.MODE_MULTI_PROCESS);
 		
-		bitrateSlider.setMax(Game.BITRATE_CEILING);
+		bitrateSlider.setMax(BITRATE_CEILING);
 		bitrateSlider.setProgress(prefs.getInt(Game.BITRATE_PREF_STRING, Game.DEFAULT_BITRATE));
 		updateBitrateLabel();
 		
@@ -94,6 +98,31 @@ public class AdvancedSettings extends Activity {
 		forceSoftDec.setOnCheckedChangeListener(occl);
 		forceHardDec.setOnCheckedChangeListener(occl);
 		autoDec.setOnCheckedChangeListener(occl);
+		
+		this.bitrateSlider.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
+			@Override
+			public void onProgressChanged(SeekBar seekBar, int progress,
+					boolean fromUser) {
+
+				// Verify the user's selection
+				if (fromUser) {
+					if (progress < BITRATE_FLOOR) {
+						seekBar.setProgress(BITRATE_FLOOR);
+						return;
+					}
+				}
+
+				updateBitrateLabel();
+			}
+
+			@Override
+			public void onStartTrackingTouch(SeekBar seekBar) {
+			}
+
+			@Override
+			public void onStopTrackingTouch(SeekBar seekBar) {
+			}
+		});
 	}
 
 	private void updateBitrateLabel() {

src/com/limelight/AppView.java

@@ -35,6 +35,7 @@ public class AppView extends Activity {
 	private ArrayAdapter<AppObject> appListAdapter;
 	private InetAddress ipAddress;
 	private String uniqueId;
+	private boolean remote;
 	
 	private final static int RESUME_ID = 1;
 	private final static int QUIT_ID = 2;
@@ -42,6 +43,7 @@ public class AppView extends Activity {
 	public final static String ADDRESS_EXTRA = "Address";
 	public final static String UNIQUEID_EXTRA = "UniqueId";
 	public final static String NAME_EXTRA = "Name";
+	public final static String REMOTE_EXTRA = "Remote";
 	
 	@Override
 	protected void onCreate(Bundle savedInstanceState) {
@@ -50,6 +52,7 @@ public class AppView extends Activity {
 		
 		byte[] address = getIntent().getByteArrayExtra(ADDRESS_EXTRA);
 		uniqueId = getIntent().getStringExtra(UNIQUEID_EXTRA);
+		remote = getIntent().getBooleanExtra(REMOTE_EXTRA, false);
 		if (address == null || uniqueId == null) {
 			return;
 		}
@@ -195,6 +198,7 @@ public class AppView extends Activity {
 		intent.putExtra(Game.EXTRA_HOST, ipAddress.getHostAddress());
 		intent.putExtra(Game.EXTRA_APP, app.getAppName());
 		intent.putExtra(Game.EXTRA_UNIQUEID, uniqueId);
+		intent.putExtra(Game.EXTRA_STREAMING_REMOTE, remote);
 		startActivity(intent);
 	}
 	

src/com/limelight/Game.java

@@ -1,11 +1,5 @@
 package com.limelight;
 
-import java.net.Inet4Address;
-import java.net.InetAddress;
-import java.net.InterfaceAddress;
-import java.net.NetworkInterface;
-import java.net.SocketException;
-import java.util.Enumeration;
 
 import com.limelight.binding.PlatformBinding;
 import com.limelight.binding.input.ControllerHandler;
@@ -26,7 +20,6 @@ import android.content.SharedPreferences;
 import android.graphics.Point;
 import android.media.AudioManager;
 import android.net.ConnectivityManager;
-import android.net.NetworkInfo;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.os.Handler;
@@ -74,6 +67,7 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 	public static final String EXTRA_HOST = "Host";
 	public static final String EXTRA_APP = "App";
 	public static final String EXTRA_UNIQUEID = "UniqueId";
+	public static final String EXTRA_STREAMING_REMOTE = "Remote";
 	
 	public static final String PREFS_FILE_NAME = "gameprefs";
 	
@@ -83,18 +77,11 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 	public static final String DECODER_PREF_STRING = "Decoder";
 	public static final String BITRATE_PREF_STRING = "Bitrate";
 	
-	public static final int BITRATE_FLOOR_720_30 = 2;
-	public static final int BITRATE_FLOOR_720_60 = 4;
-	public static final int BITRATE_FLOOR_1080_30 = 4;
-	public static final int BITRATE_FLOOR_1080_60 = 10;
-	
 	public static final int BITRATE_DEFAULT_720_30 = 5;
 	public static final int BITRATE_DEFAULT_720_60 = 10;
 	public static final int BITRATE_DEFAULT_1080_30 = 10;
 	public static final int BITRATE_DEFAULT_1080_60 = 30;
-	
-	public static final int BITRATE_CEILING = 50;
-	
+		
 	public static final int DEFAULT_WIDTH = 1280;
 	public static final int DEFAULT_HEIGHT = 720;
 	public static final int DEFAULT_REFRESH_RATE = 60;
@@ -179,21 +166,7 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 		String host = Game.this.getIntent().getStringExtra(EXTRA_HOST);
 		String app = Game.this.getIntent().getStringExtra(EXTRA_APP);
 		String uniqueId = Game.this.getIntent().getStringExtra(EXTRA_UNIQUEID);
-		InetAddress addr;
-		boolean enableLargePackets;
-		try {
-			// If this does a DNS lookup, it could cause a NetworkOnMainThread exception
-			// Chances are if it has to do this, we're not on the same network anyways
-			addr = InetAddress.getByName(host);
-			
-			// Check if we can enable large packets if we get this far
-			enableLargePackets = shouldEnableLargePackets(addr);
-		} catch (Exception e) {
-			// We don't want to deal with any exceptions here. The user will be notified
-			// when the connection fails
-			enableLargePackets = false;
-		}
-		
+		boolean enableLargePackets = !Game.this.getIntent().getBooleanExtra(EXTRA_STREAMING_REMOTE, true);
 		LimeLog.info("Using large packets? "+enableLargePackets);
         
 		// Start the connection
@@ -208,89 +181,6 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 		sh.addCallback(this);
 	}
 	
-	private boolean shouldEnableLargePackets(InetAddress targetAddress) {
-		ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);		
-		NetworkInfo activeNetworkInfo = connMgr.getActiveNetworkInfo();
-		String matchingPrefix;
-		
-		if (activeNetworkInfo == null) {
-			return false;
-		}
-		
-		switch (activeNetworkInfo.getType())
-		{
-		case ConnectivityManager.TYPE_ETHERNET:
-			matchingPrefix = "eth";
-			break;
-		case ConnectivityManager.TYPE_WIFI:
-			matchingPrefix = "wlan";
-			break;
-
-		default:
-			// Must be on Ethernet or Wifi to consider that we can send large packets
-			return false;
-		}
-
-		// Try to find the interface that corresponds to the active network
-		try {
-			Enumeration<NetworkInterface> ifaceList = NetworkInterface.getNetworkInterfaces();
-			while (ifaceList.hasMoreElements()) {
-				NetworkInterface iface = ifaceList.nextElement();
-
-				// Look for an interface that matches the prefix we expect
-				if (iface.isUp() && iface.getName().startsWith(matchingPrefix)) {
-					// Find the IPv4 address for the interface
-					for (InterfaceAddress addr : iface.getInterfaceAddresses()) {
-						if (!(addr.getAddress() instanceof Inet4Address)) {
-							// Skip non-IPv4 addresses
-							continue;
-						}
-						
-						// Found the right address on the right interface
-						return isOnSameSubnet(targetAddress, addr.getAddress(), addr.getNetworkPrefixLength());
-					}
-				}
-			}
-		} catch (SocketException e) {
-			e.printStackTrace();
-		}
-
-		// We didn't find the interface or something else went wrong
-		return false;
-	}
-	
-	private boolean isOnSameSubnet(InetAddress targetAddress, InetAddress localAddress, short networkPrefixLength) {
-		byte[] targetBytes = targetAddress.getAddress();
-		byte[] localBytes = localAddress.getAddress();
-
-		for (int byteIndex = 0; networkPrefixLength > 0; byteIndex++) {
-			byte target = targetBytes[byteIndex];
-			byte local = localBytes[byteIndex];
-			
-			if (networkPrefixLength >= 8) {
-				// Do a full byte comparison
-				if (target != local) {
-					return false;
-				}
-				
-				networkPrefixLength -= 8;
-			}
-			else {
-				target &= (byte)(0xFF << (8 - networkPrefixLength));
-				local &= (byte)(0xFF << (8 - networkPrefixLength));
-				
-				// Do a masked comparison
-				if (target != local) {
-					return false;
-				}
-				
-				networkPrefixLength = 0;
-			}
-		}
-		
-		return true;
-	}
-	
 	private void checkDataConnection()
 	{
 		ConnectivityManager mgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

src/com/limelight/PcView.java

@@ -223,6 +223,11 @@ public class PcView extends Activity {
 			Toast.makeText(PcView.this, "Computer is offline", Toast.LENGTH_SHORT).show();
 			return;
 		}
+		if (computer.runningGameId != 0) {
+			Toast.makeText(PcView.this, "Computer is currently in a game. " +
+					"You must close the game before pairing.", Toast.LENGTH_LONG).show();
+			return;
+		}
 		
 		Toast.makeText(PcView.this, "Pairing...", Toast.LENGTH_SHORT).show();
 		new Thread(new Runnable() {
@@ -305,7 +310,7 @@ public class PcView extends Activity {
 					message = "It may take a few seconds for your PC to wake up. " +
 							"If it doesn't, make sure it's configured properly for Wake-On-LAN.";
 				} catch (IOException e) {
-					message = "Failed to send wake-on-lan packets";
+					message = "Failed to send Wake-On-LAN packets";
 				}
 				
 				final String toastMessage = message;
@@ -388,9 +393,11 @@ public class PcView extends Activity {
 		
 		if (computer.reachability == ComputerDetails.Reachability.LOCAL) {
 			i.putExtra(AppView.ADDRESS_EXTRA, computer.localIp.getAddress());
+			i.putExtra(AppView.REMOTE_EXTRA, false);
 		}
 		else {
 			i.putExtra(AppView.ADDRESS_EXTRA, computer.remoteIp.getAddress());
+			i.putExtra(AppView.REMOTE_EXTRA, true);
 		}
 		startActivity(i);
 	}
@@ -459,8 +466,8 @@ public class PcView extends Activity {
     }
     
     private void addListPlaceholder() {
-        pcListAdapter.add(new ComputerObject("No computers found yet. Make sure your computer is running GFE " +
-        		"or add your PC manually on the settings page.", null));
+        pcListAdapter.add(new ComputerObject("Discovery is running. No computers found yet. " +
+        		"Make sure your computer is running GFE or add your PC manually on the settings page.", null));
     }
     
     private void removeListView(ComputerDetails details) {

src/com/limelight/computers/ComputerManagerService.java

@@ -1,6 +1,11 @@
 package com.limelight.computers;
 
+import java.net.Inet4Address;
 import java.net.InetAddress;
+import java.net.InterfaceAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.Enumeration;
 import java.util.List;
 import java.util.Timer;
 import java.util.TimerTask;
@@ -18,8 +23,11 @@ import com.limelight.nvstream.mdns.MdnsDiscoveryListener;
 
 import android.app.Service;
 import android.content.ComponentName;
+import android.content.Context;
 import android.content.Intent;
 import android.content.ServiceConnection;
+import android.net.ConnectivityManager;
+import android.net.NetworkInfo;
 import android.os.Binder;
 import android.os.IBinder;
 
@@ -180,41 +188,179 @@ public class ComputerManagerService extends Service {
 		};
 	}
 	
+	private int getActiveNetworkType() {
+		ConnectivityManager connMgr = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);		
+		NetworkInfo activeNetworkInfo = connMgr.getActiveNetworkInfo();
+		if (activeNetworkInfo == null) {
+			return -1;
+		}
+		
+		return activeNetworkInfo.getType();
+	}
+	
+	private InterfaceAddress getActiveInterfaceAddress() {
+		String matchingPrefix;
+		
+		switch (getActiveNetworkType())
+		{
+		case ConnectivityManager.TYPE_ETHERNET:
+			matchingPrefix = "eth";
+			break;
+		case ConnectivityManager.TYPE_WIFI:
+			matchingPrefix = "wlan";
+			break;
+
+		default:
+			// Must be on Ethernet or Wifi to consider that we can send large packets
+			return null;
+		}
+
+		// Try to find the interface that corresponds to the active network
+		try {
+			Enumeration<NetworkInterface> ifaceList = NetworkInterface.getNetworkInterfaces();
+			while (ifaceList.hasMoreElements()) {
+				NetworkInterface iface = ifaceList.nextElement();
+
+				// Look for an interface that matches the prefix we expect
+				if (iface.isUp() && iface.getName().startsWith(matchingPrefix)) {
+					// Find the IPv4 address for the interface
+					for (InterfaceAddress addr : iface.getInterfaceAddresses()) {
+						if (!(addr.getAddress() instanceof Inet4Address)) {
+							// Skip non-IPv4 addresses
+							continue;
+						}
+						
+						// Found the right address on the right interface
+						return addr;
+					}
+				}
+			}
+		} catch (SocketException e) {
+			e.printStackTrace();
+		}
+
+		// We didn't find the interface or something else went wrong
+		return null;
+	}
+	
+	private boolean isOnSameSubnet(InetAddress targetAddress, InetAddress localAddress, short networkPrefixLength) {
+		byte[] targetBytes = targetAddress.getAddress();
+		byte[] localBytes = localAddress.getAddress();
+
+		for (int byteIndex = 0; networkPrefixLength > 0; byteIndex++) {
+			byte target = targetBytes[byteIndex];
+			byte local = localBytes[byteIndex];
+			
+			if (networkPrefixLength >= 8) {
+				// Do a full byte comparison
+				if (target != local) {
+					return false;
+				}
+				
+				networkPrefixLength -= 8;
+			}
+			else {
+				target &= (byte)(0xFF << (8 - networkPrefixLength));
+				local &= (byte)(0xFF << (8 - networkPrefixLength));
+				
+				// Do a masked comparison
+				if (target != local) {
+					return false;
+				}
+				
+				networkPrefixLength = 0;
+			}
+		}
+		
+		return true;
+	}
+	
+	private ComputerDetails tryPollIp(InetAddress ipAddr) {
+		try {
+			NvHTTP http = new NvHTTP(ipAddr, idManager.getUniqueId(),
+					null, PlatformBinding.getCryptoProvider(ComputerManagerService.this));
+			
+			return http.getComputerDetails();
+		} catch (Exception e) {
+			return null;
+		}
+	}
+	
+	private boolean pollComputer(ComputerDetails details, boolean localFirst) {
+		ComputerDetails polledDetails;
+		
+		if (localFirst) {
+			polledDetails = tryPollIp(details.localIp);
+		}
+		else {
+			polledDetails = tryPollIp(details.remoteIp);
+		}
+		
+		if (polledDetails == null) {
+			// Failed, so let's try the fallback
+			if (!localFirst) {
+				polledDetails = tryPollIp(details.localIp);
+			}
+			else {
+				polledDetails = tryPollIp(details.remoteIp);
+			}
+			
+			// The fallback poll worked
+			if (polledDetails != null) {
+				polledDetails.reachability = !localFirst ? ComputerDetails.Reachability.LOCAL :
+					ComputerDetails.Reachability.REMOTE;
+			}
+		} else {
+			polledDetails.reachability = localFirst ? ComputerDetails.Reachability.LOCAL :
+				ComputerDetails.Reachability.REMOTE;
+		}
+		
+		// Machine was unreachable both tries
+		if (polledDetails == null) {
+			return false;
+		}
+		
+		// If we got here, it's reachable
+		details.update(polledDetails);
+		return true;
+	}
+	
+	private boolean doPollMachine(ComputerDetails details) {
+		// Get the network type
+		int networkType = getActiveNetworkType();
+		switch (networkType) {
+		// We'll check local first on these if we find
+		// we're on the same subnet
+		case ConnectivityManager.TYPE_ETHERNET:
+		case ConnectivityManager.TYPE_WIFI:
+			InterfaceAddress ifaceAddr = getActiveInterfaceAddress();
+			if (ifaceAddr != null) {
+				if (isOnSameSubnet(details.localIp, ifaceAddr.getAddress(), ifaceAddr.getNetworkPrefixLength())) {
+					// It's on the same subnet, so poll local first
+					LimeLog.info("Machine looks local; trying local IP first");
+					return pollComputer(details, true);
+				}
+			}
+			// Fall through to remote first
+		default:
+			LimeLog.info("Machine looks remote; trying remote IP first");
+			return pollComputer(details, false);
+		}
+	}
+	
 	private Runnable getPollingRunnable(final ComputerDetails details) {
 		return new Runnable() {
 
 			@Override
 			public void run() {
-				boolean newPc = details.name == null;
+				boolean newPc = (details.name == null);
 				
-				try {
-					// Try the local IP first
-					NvHTTP http = new NvHTTP(details.localIp, idManager.getUniqueId(),
-							null, PlatformBinding.getCryptoProvider(ComputerManagerService.this));
-					
-					ComputerDetails localDetails = http.getComputerDetails();
-					
-					// If we got here, it's reachable
-					details.reachability = ComputerDetails.Reachability.LOCAL;
-					details.update(localDetails);
-				} catch (Exception e) {
-					// This isn't horrible yet; we'll try remote
-					try {
-						NvHTTP http = new NvHTTP(details.remoteIp, idManager.getUniqueId(),
-								null, PlatformBinding.getCryptoProvider(ComputerManagerService.this));
-						
-						ComputerDetails remoteDetails = http.getComputerDetails();
-						
-						// If we got here, it's reachable
-						details.reachability = ComputerDetails.Reachability.REMOTE;
-						details.update(remoteDetails);
-					} catch (Exception e1) {
-						// No good, it's offline
-						details.state = ComputerDetails.State.OFFLINE;
-						details.reachability = ComputerDetails.Reachability.OFFLINE;
-					}
+				// Poll the machine
+				if (!doPollMachine(details)) {
+					details.state = ComputerDetails.State.OFFLINE;
+					details.reachability = ComputerDetails.Reachability.OFFLINE;
 				}
-				
+
 				// If it's online, update our persistent state
 				if (details.state == ComputerDetails.State.ONLINE) {
 					if (!newPc) {