From 329a938bf81925a3a908c1e5f1482cdc177e84e5 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Thu, 19 Jun 2014 18:26:33 -0700
Subject: [PATCH] Hold a high performance Wi-Fi lock while streaming

---
 AndroidManifest.xml         |  1 +
 src/com/limelight/Game.java | 18 +++++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 0bffb925..f9edd80b 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -10,6 +10,7 @@
 
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
     
     <uses-feature android:name="android.hardware.touchscreen" android:required="false" />
 
diff --git a/src/com/limelight/Game.java b/src/com/limelight/Game.java
index c55d50e0..56e143eb 100644
--- a/src/com/limelight/Game.java
+++ b/src/com/limelight/Game.java
@@ -19,6 +19,7 @@ import android.content.SharedPreferences;
 import android.graphics.Point;
 import android.media.AudioManager;
 import android.net.ConnectivityManager;
+import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.os.Handler;
 import android.view.Display;
@@ -56,6 +57,8 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 	private boolean connecting = false;
 	private boolean connected = false;
 	
+	private WifiManager.WifiLock wifiLock;
+	
 	private int drFlags = 0;
 	
 	public static final String PREFS_FILE_NAME = "gameprefs";
@@ -152,7 +155,13 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 		        
 		// Warn the user if they're on a metered connection
         checkDataConnection();
-		
+        
+        // Make sure Wi-Fi is fully powered up
+		WifiManager wifiMgr = (WifiManager) getSystemService(Context.WIFI_SERVICE);
+        wifiLock = wifiMgr.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, "Limelight");
+		wifiLock.setReferenceCounted(false);
+		wifiLock.acquire();
+        
 		// Start the connection
 		conn = new NvConnection(Game.this.getIntent().getStringExtra("host"), Game.this,
 				new StreamConfiguration(width, height, refreshRate, bitrate * 1000), PlatformBinding.getCryptoProvider(this));
@@ -214,6 +223,13 @@ public class Game extends Activity implements SurfaceHolder.Callback, OnGenericM
 		finish();
 	}
 	
+	@Override
+	protected void onDestroy() {
+		super.onDestroy();
+		
+		wifiLock.release();
+	}
+	
 	private static byte getModifierState(KeyEvent event) {
 		byte modifier = 0;
 		if (event.isShiftPressed()) {