From 9b99f5c0ce3250c2084770e2fdb7f50be1bfb5c4 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Mon, 30 Dec 2013 22:06:16 -0600
Subject: [PATCH] Initial NativeGamepad class

---
 .../input/gamepad/NativeGamepad.java          | 172 ++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 src/com/limelight/input/gamepad/NativeGamepad.java

diff --git a/src/com/limelight/input/gamepad/NativeGamepad.java b/src/com/limelight/input/gamepad/NativeGamepad.java
new file mode 100644
index 0000000..bf4a9a9
--- /dev/null
+++ b/src/com/limelight/input/gamepad/NativeGamepad.java
@@ -0,0 +1,172 @@
+package com.limelight.input.gamepad;
+
+import java.util.ArrayList;
+
+public class NativeGamepad {
+	public static final int DEFAULT_DEVICE_POLLING_INTERVAL = 1000;
+	public static final int DEFAULT_EVENT_POLLING_INTERVAL = 20;
+	
+	private static ArrayList<NativeGamepadListener> listenerList =
+			new ArrayList<NativeGamepadListener>();
+	private static boolean running = false;
+	private static Thread deviceThread = null;
+	private static Thread eventThread = null;
+	private static int devicePollingIntervalMs = DEFAULT_DEVICE_POLLING_INTERVAL;
+	private static int eventPollingIntervalMs = DEFAULT_EVENT_POLLING_INTERVAL;
+
+	static {
+		System.loadLibrary("gamepad_jni");
+		
+		NativeGamepad.init();
+	}
+	
+	private static native void init();
+	private static native void shutdown();
+	private static native int numDevices();
+	private static native void detectDevices();
+	private static native void processEvents();
+	
+	public static void addListener(NativeGamepadListener listener) {
+		listenerList.add(listener);
+	}
+	
+	public static void removeListener(NativeGamepadListener listener) {
+		listenerList.remove(listener);
+	}
+	
+	public static boolean isRunning() {
+		return running;
+	}
+	
+	public static void setDevicePollingInterval(int interval) {
+		devicePollingIntervalMs = interval;
+	}
+	
+	public static int getDevicePollingInterval() {
+		return devicePollingIntervalMs;
+	}
+	
+	public static void setEventPollingInterval(int interval) {
+		eventPollingIntervalMs = interval;
+	}
+	
+	public static int getEventPollingInterval() {
+		return eventPollingIntervalMs;
+	}
+	
+	public static void start() {
+		if (!running) {
+			startDevicePolling();
+			startEventPolling();
+			running = true;
+		}
+	}
+	
+	public static void stop() {
+		if (running) {
+			stopEventPolling();
+			stopDevicePolling();
+			running = false;
+		}
+	}
+	
+	public static void release() {
+		NativeGamepad.shutdown();
+	}
+	
+	public static int getDeviceCount() {
+		if (!running) {
+			throw new IllegalStateException("NativeGamepad not running");
+		}
+		
+		return NativeGamepad.numDevices();
+	}
+	
+	private static void startDevicePolling() {
+		deviceThread = new Thread() {
+			@Override
+			public void run() {
+				while (!isInterrupted()) {
+					NativeGamepad.detectDevices();
+					
+					try {
+						Thread.sleep(devicePollingIntervalMs);
+					} catch (InterruptedException e) {
+						return;
+					}
+				}
+			}
+		};
+		deviceThread.setName("Native Gamepad - Device Polling Thread");
+		deviceThread.start();
+	}
+	
+	private static void startEventPolling() {
+		eventThread = new Thread() {
+			@Override
+			public void run() {
+				while (!isInterrupted()) {
+					NativeGamepad.processEvents();
+					
+					try {
+						Thread.sleep(eventPollingIntervalMs);
+					} catch (InterruptedException e) {
+						return;
+					}
+				}
+			}
+		};
+		eventThread.setName("Native Gamepad - Event Polling Thread");
+		eventThread.start();
+	}
+	
+	private static void stopDevicePolling() {
+		if (deviceThread != null) {
+			deviceThread.interrupt();
+			
+			try {
+				deviceThread.join();
+			} catch (InterruptedException e) {}
+		}
+	}
+	
+	private static void stopEventPolling() {
+		if (eventThread != null) {
+			eventThread.interrupt();
+			
+			try {
+				eventThread.join();
+			} catch (InterruptedException e) {}
+		}
+	}
+	
+	public static void deviceAttachCallback(int deviceId, int numButtons, int numAxes) {
+		for (NativeGamepadListener listener : listenerList) {
+			listener.deviceAttached(deviceId, numButtons, numAxes);
+		}
+	}
+	
+	public static void deviceRemoveCallback(int deviceId) {
+		for (NativeGamepadListener listener : listenerList) {
+			listener.deviceRemoved(deviceId);
+		}
+	}
+	
+	public static void buttonUpCallback(int deviceId, int buttonId) {
+		for (NativeGamepadListener listener : listenerList) {
+			listener.buttonUp(deviceId, buttonId);
+		}
+	}
+	
+	public static void buttonDownCallback(int deviceId, int buttonId) {
+		for (NativeGamepadListener listener : listenerList) {
+			listener.buttonDown(deviceId, buttonId);
+		}
+	}
+	
+	public static void axisMovedCallback(int deviceId, int axisId, float value, float lastValue) {
+		for (NativeGamepadListener listener : listenerList) {
+			listener.axisMoved(deviceId, axisId, value, lastValue);
+		}
+	}
+}