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/*
* %W% %E%
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* Copyright 2002 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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package net.java.games.input;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.List;
import java.util.ArrayList;
import java.io.File;
import java.io.IOException;
import net.java.games.util.plugins.Plugin;
/** DirectInput implementation of controller environment
* @author martak
* @author elias
* @version 1.0
*/
public final class DirectInputEnvironmentPlugin extends ControllerEnvironment implements Plugin {
private static boolean supported = false;
/**
* Static utility method for loading native libraries.
* It will try to load from either the path given by
* the net.java.games.input.librarypath property
* or through System.loadLibrary().
*
*/
static void loadLibrary(final String lib_name) {
AccessController.doPrivileged(
new PrivilegedAction() {
public final Object run() {
try {
String lib_path = System.getProperty("net.java.games.input.librarypath");
if (lib_path != null)
System.load(lib_path + File.separator + System.mapLibraryName(lib_name));
else
System.loadLibrary(lib_name);
} catch (UnsatisfiedLinkError e) {
e.printStackTrace();
supported = false;
}
return null;
}
});
}
static String getPrivilegedProperty(final String property) {
return (String)AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
return System.getProperty(property);
}
});
}
static String getPrivilegedProperty(final String property, final String default_value) {
return (String)AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
return System.getProperty(property, default_value);
}
});
}
static {
String osName = getPrivilegedProperty("os.name", "").trim();
if(osName.startsWith("Windows")) {
supported = true;
if("x86".equals(getPrivilegedProperty("os.arch"))) {
loadLibrary("jinput-dx8");
} else {
loadLibrary("jinput-dx8_64");
}
}
}
private final Controller[] controllers;
private final List active_devices = new ArrayList();
private final DummyWindow window;
/** Creates new DirectInputEnvironment */
public DirectInputEnvironmentPlugin() {
DummyWindow window = null;
Controller[] controllers = new Controller[]{};
if(isSupported()) {
try {
window = new DummyWindow();
try {
controllers = enumControllers(window);
} catch (IOException e) {
window.destroy();
throw e;
}
} catch (IOException e) {
log("Failed to enumerate devices: " + e.getMessage());
}
this.window = window;
this.controllers = controllers;
AccessController.doPrivileged(
new PrivilegedAction() {
public final Object run() {
Runtime.getRuntime().addShutdownHook(new ShutdownHook());
return null;
}
});
} else {
// These are final fields, so can't set them, then over ride
// them if we are supported.
this.window = null;
this.controllers = controllers;
}
}
public final Controller[] getControllers() {
return controllers;
}
private final Component[] createComponents(IDirectInputDevice device, boolean map_mouse_buttons) {
List device_objects = device.getObjects();
List controller_components = new ArrayList();
for (int i = 0; i < device_objects.size(); i++) {
DIDeviceObject device_object = (DIDeviceObject)device_objects.get(i);
Component.Identifier identifier = device_object.getIdentifier();
if (identifier == null)
continue;
if (map_mouse_buttons && identifier instanceof Component.Identifier.Button) {
identifier = DIIdentifierMap.mapMouseButtonIdentifier((Component.Identifier.Button)identifier);
}
DIComponent component = new DIComponent(identifier, device_object);
controller_components.add(component);
device.registerComponent(device_object, component);
}
Component[] components = new Component[controller_components.size()];
controller_components.toArray(components);
return components;
}
private final Mouse createMouseFromDevice(IDirectInputDevice device) {
Component[] components = createComponents(device, true);
Mouse mouse = new DIMouse(device, components, new Controller[]{}, device.getRumblers());
if (mouse.getX() != null && mouse.getY() != null && mouse.getPrimaryButton() != null)
return mouse;
else
return null;
}
private final AbstractController createControllerFromDevice(IDirectInputDevice device, Controller.Type type) {
Component[] components = createComponents(device, false);
AbstractController controller = new DIAbstractController(device, components, new Controller[]{}, device.getRumblers(), type);
return controller;
}
private final Keyboard createKeyboardFromDevice(IDirectInputDevice device) {
Component[] components = createComponents(device, false);
return new DIKeyboard(device, components, new Controller[]{}, device.getRumblers());
}
private final Controller createControllerFromDevice(IDirectInputDevice device) {
switch (device.getType()) {
case IDirectInputDevice.DI8DEVTYPE_MOUSE:
return createMouseFromDevice(device);
case IDirectInputDevice.DI8DEVTYPE_KEYBOARD:
return createKeyboardFromDevice(device);
case IDirectInputDevice.DI8DEVTYPE_GAMEPAD:
return createControllerFromDevice(device, Controller.Type.GAMEPAD);
case IDirectInputDevice.DI8DEVTYPE_DRIVING:
return createControllerFromDevice(device, Controller.Type.WHEEL);
case IDirectInputDevice.DI8DEVTYPE_1STPERSON:
/* Fall through */
case IDirectInputDevice.DI8DEVTYPE_FLIGHT:
/* Fall through */
case IDirectInputDevice.DI8DEVTYPE_JOYSTICK:
return createControllerFromDevice(device, Controller.Type.STICK);
default:
return createControllerFromDevice(device, Controller.Type.UNKNOWN);
}
}
private final Controller[] enumControllers(DummyWindow window) throws IOException {
List controllers = new ArrayList();
IDirectInput dinput = new IDirectInput(window);
try {
List devices = dinput.getDevices();
for (int i = 0; i < devices.size(); i++) {
IDirectInputDevice device = (IDirectInputDevice)devices.get(i);
Controller controller = createControllerFromDevice(device);
if (controller != null) {
controllers.add(controller);
active_devices.add(device);
} else
device.release();
}
} finally {
dinput.release();
}
Controller[] controllers_array = new Controller[controllers.size()];
controllers.toArray(controllers_array);
return controllers_array;
}
private final class ShutdownHook extends Thread {
public final void run() {
/* Release the devices to kill off active force feedback effects */
for (int i = 0; i < active_devices.size(); i++) {
IDirectInputDevice device = (IDirectInputDevice)active_devices.get(i);
device.release();
}
/* We won't release the window since it is
* owned by the thread that created the environment.
*/
}
}
public boolean isSupported() {
return supported;
}
} // class DirectInputEnvironment
