Add support for vertical mouse scrolling

moonlight-common/src/com/limelight/nvstream/NvConnection.java

@@ -335,4 +335,11 @@ public class NvConnection {
 		
 		inputStream.sendKeyboardInput(keyMap, keyDirection, modifier);
 	}
+	
+	public void sendMouseScroll(final byte scrollClicks) {
+		if (inputStream == null)
+			return;
+		
+		inputStream.sendMouseScroll(scrollClicks);
+	}
 }

moonlight-common/src/com/limelight/nvstream/input/ControllerStream.java

@@ -282,4 +282,9 @@ public class ControllerStream {
 	{
 		queuePacket(new KeyboardPacket(keyMap, keyDirection, modifier));
 	}
+	
+	public void sendMouseScroll(byte scrollClicks)
+	{
+		queuePacket(new MouseScrollPacket(scrollClicks));
+	}
 }

moonlight-common/src/com/limelight/nvstream/input/MouseScrollPacket.java

@@ -0,0 +1,36 @@
+package com.limelight.nvstream.input;
+
+import java.nio.ByteBuffer;
+
+public class MouseScrollPacket extends InputPacket {
+	public static final int PACKET_TYPE = 0xa;
+	public static final int PAYLOAD_LENGTH = 10;
+	public static final int PACKET_LENGTH = PAYLOAD_LENGTH +
+		InputPacket.HEADER_LENGTH;
+	
+	short scroll;
+	
+	public MouseScrollPacket(byte scrollClicks)
+	{
+		super(PACKET_TYPE);
+		this.scroll = (short)(scrollClicks * 120);
+	}
+
+	@Override
+	public byte[] toWire() {
+		ByteBuffer bb = ByteBuffer.allocate(PACKET_LENGTH);
+		
+		bb.put(toWireHeader());
+		bb.put((byte) 0x09);
+		bb.put((byte) 0);
+		bb.put((byte) 0);
+		bb.put((byte) 0);
+		
+		bb.putShort(scroll);
+		bb.putShort(scroll);
+		
+		bb.putShort((short) 0);
+		
+		return bb.array();
+	}
+}