617 lines
20 KiB
Java

package com.limelight.binding.input;
import java.util.HashMap;
import android.os.SystemClock;
import android.view.InputDevice;
import android.view.KeyEvent;
import android.view.MotionEvent;
import com.limelight.nvstream.NvConnection;
import com.limelight.nvstream.input.ControllerPacket;
import com.limelight.utils.Vector2d;
public class ControllerHandler {
private short inputMap = 0x0000;
private byte leftTrigger = 0x00;
private byte rightTrigger = 0x00;
private short rightStickX = 0x0000;
private short rightStickY = 0x0000;
private short leftStickX = 0x0000;
private short leftStickY = 0x0000;
private int emulatingButtonFlags = 0;
// Used for OUYA bumper state tracking since they force all buttons
// up when the OUYA button goes down. We watch the last time we get
// a bumper up and compare that to our maximum delay when we receive
// a Start button press to see if we should activate one of our
// emulated button combos.
private long lastLbUpTime = 0;
private long lastRbUpTime = 0;
private static final int MAXIMUM_BUMPER_UP_DELAY_MS = 100;
private static final int MINIMUM_BUTTON_DOWN_TIME_MS = 25;
private static final int EMULATING_SPECIAL = 0x1;
private static final int EMULATING_SELECT = 0x2;
private static final int EMULATED_SPECIAL_UP_DELAY_MS = 100;
private static final int EMULATED_SELECT_UP_DELAY_MS = 30;
private Vector2d inputVector = new Vector2d();
private Vector2d normalizedInputVector = new Vector2d();
private HashMap<String, ControllerMapping> mappings = new HashMap<String, ControllerMapping>();
private NvConnection conn;
private double stickDeadzone;
private final ControllerMapping defaultMapping = new ControllerMapping();
public ControllerHandler(NvConnection conn, int deadzonePercentage) {
this.conn = conn;
this.stickDeadzone = (double)deadzonePercentage / 100.0;
// We want limelight-common to scale the axis values to match Xinput values
ControllerPacket.enableAxisScaling = true;
// Initialize the default mapping for events with no device
defaultMapping.leftStickXAxis = MotionEvent.AXIS_X;
defaultMapping.leftStickYAxis = MotionEvent.AXIS_Y;
defaultMapping.leftStickDeadzoneRadius = (float) stickDeadzone;
defaultMapping.rightStickXAxis = MotionEvent.AXIS_Z;
defaultMapping.rightStickYAxis = MotionEvent.AXIS_RZ;
defaultMapping.rightStickDeadzoneRadius = (float) stickDeadzone;
defaultMapping.leftTriggerAxis = MotionEvent.AXIS_BRAKE;
defaultMapping.rightTriggerAxis = MotionEvent.AXIS_GAS;
}
private static InputDevice.MotionRange getMotionRangeForJoystickAxis(InputDevice dev, int axis) {
InputDevice.MotionRange range;
// First get the axis for SOURCE_JOYSTICK
range = dev.getMotionRange(axis, InputDevice.SOURCE_JOYSTICK);
if (range == null) {
// Now try the axis for SOURCE_GAMEPAD
range = dev.getMotionRange(axis, InputDevice.SOURCE_GAMEPAD);
}
return range;
}
private ControllerMapping createMappingForDevice(InputDevice dev) {
ControllerMapping mapping = new ControllerMapping();
mapping.leftStickXAxis = MotionEvent.AXIS_X;
mapping.leftStickYAxis = MotionEvent.AXIS_Y;
InputDevice.MotionRange leftTriggerRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_LTRIGGER);
InputDevice.MotionRange rightTriggerRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RTRIGGER);
InputDevice.MotionRange brakeRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_BRAKE);
InputDevice.MotionRange gasRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_GAS);
if (leftTriggerRange != null && rightTriggerRange != null)
{
// Some controllers use LTRIGGER and RTRIGGER (like Ouya)
mapping.leftTriggerAxis = MotionEvent.AXIS_LTRIGGER;
mapping.rightTriggerAxis = MotionEvent.AXIS_RTRIGGER;
}
else if (brakeRange != null && gasRange != null)
{
// Others use GAS and BRAKE (like Moga)
mapping.leftTriggerAxis = MotionEvent.AXIS_BRAKE;
mapping.rightTriggerAxis = MotionEvent.AXIS_GAS;
}
else
{
InputDevice.MotionRange rxRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RX);
InputDevice.MotionRange ryRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RY);
if (rxRange != null && ryRange != null) {
String devName = dev.getName();
if (devName.contains("Xbox") || devName.contains("XBox") || devName.contains("X-Box")) {
// Xbox controllers use RX and RY for right stick
mapping.rightStickXAxis = MotionEvent.AXIS_RX;
mapping.rightStickYAxis = MotionEvent.AXIS_RY;
// Xbox controllers use Z and RZ for triggers
mapping.leftTriggerAxis = MotionEvent.AXIS_Z;
mapping.rightTriggerAxis = MotionEvent.AXIS_RZ;
mapping.triggersIdleNegative = true;
mapping.isXboxController = true;
}
else {
// DS4 controller uses RX and RY for triggers
mapping.leftTriggerAxis = MotionEvent.AXIS_RX;
mapping.rightTriggerAxis = MotionEvent.AXIS_RY;
mapping.triggersIdleNegative = true;
mapping.isDualShock4 = true;
}
}
}
if (mapping.rightStickXAxis == -1 && mapping.rightStickYAxis == -1) {
InputDevice.MotionRange zRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_Z);
InputDevice.MotionRange rzRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RZ);
// Most other controllers use Z and RZ for the right stick
if (zRange != null && rzRange != null) {
mapping.rightStickXAxis = MotionEvent.AXIS_Z;
mapping.rightStickYAxis = MotionEvent.AXIS_RZ;
}
else {
InputDevice.MotionRange rxRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RX);
InputDevice.MotionRange ryRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_RY);
// Try RX and RY now
if (rxRange != null && ryRange != null) {
mapping.rightStickXAxis = MotionEvent.AXIS_RX;
mapping.rightStickYAxis = MotionEvent.AXIS_RY;
}
}
}
// Some devices have "hats" for d-pads
InputDevice.MotionRange hatXRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_HAT_X);
InputDevice.MotionRange hatYRange = getMotionRangeForJoystickAxis(dev, MotionEvent.AXIS_HAT_Y);
if (hatXRange != null && hatYRange != null) {
mapping.hatXAxis = MotionEvent.AXIS_HAT_X;
mapping.hatYAxis = MotionEvent.AXIS_HAT_Y;
mapping.hatXDeadzone = hatXRange.getFlat();
mapping.hatYDeadzone = hatYRange.getFlat();
}
if (mapping.leftStickXAxis != -1 && mapping.leftStickYAxis != -1) {
mapping.leftStickDeadzoneRadius = (float) stickDeadzone;
}
if (mapping.rightStickXAxis != -1 && mapping.rightStickYAxis != -1) {
mapping.rightStickDeadzoneRadius = (float) stickDeadzone;
}
return mapping;
}
private ControllerMapping getMappingForDevice(InputDevice dev) {
// Unknown devices use the default mapping
if (dev == null) {
return defaultMapping;
}
String descriptor = dev.getDescriptor();
// Return the existing mapping if it exists
ControllerMapping mapping = mappings.get(descriptor);
if (mapping != null) {
return mapping;
}
// Otherwise create a new mapping
mapping = createMappingForDevice(dev);
mappings.put(descriptor, mapping);
return mapping;
}
private void sendControllerInputPacket() {
conn.sendControllerInput(inputMap, leftTrigger, rightTrigger,
leftStickX, leftStickY, rightStickX, rightStickY);
}
private static int handleRemapping(ControllerMapping mapping, KeyEvent event) {
if (mapping.isDualShock4) {
switch (event.getKeyCode()) {
case KeyEvent.KEYCODE_BUTTON_Y:
return KeyEvent.KEYCODE_BUTTON_L1;
case KeyEvent.KEYCODE_BUTTON_Z:
return KeyEvent.KEYCODE_BUTTON_R1;
case KeyEvent.KEYCODE_BUTTON_C:
return KeyEvent.KEYCODE_BUTTON_B;
case KeyEvent.KEYCODE_BUTTON_X:
return KeyEvent.KEYCODE_BUTTON_Y;
case KeyEvent.KEYCODE_BUTTON_B:
return KeyEvent.KEYCODE_BUTTON_A;
case KeyEvent.KEYCODE_BUTTON_A:
return KeyEvent.KEYCODE_BUTTON_X;
case KeyEvent.KEYCODE_BUTTON_SELECT:
return KeyEvent.KEYCODE_BUTTON_THUMBL;
case KeyEvent.KEYCODE_BUTTON_START:
return KeyEvent.KEYCODE_BUTTON_THUMBR;
case KeyEvent.KEYCODE_BUTTON_L2:
return KeyEvent.KEYCODE_BUTTON_SELECT;
case KeyEvent.KEYCODE_BUTTON_R2:
return KeyEvent.KEYCODE_BUTTON_START;
// These are duplicate trigger events
case KeyEvent.KEYCODE_BUTTON_R1:
case KeyEvent.KEYCODE_BUTTON_L1:
return 0;
}
}
if (mapping.hatXAxis != -1 && mapping.hatYAxis != -1) {
switch (event.getKeyCode()) {
// These are duplicate dpad events for hat input
case KeyEvent.KEYCODE_DPAD_LEFT:
case KeyEvent.KEYCODE_DPAD_RIGHT:
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_DPAD_UP:
case KeyEvent.KEYCODE_DPAD_DOWN:
return 0;
}
}
else if (mapping.hatXAxis == -1 &&
mapping.hatYAxis == -1 &&
mapping.isXboxController &&
event.getKeyCode() == KeyEvent.KEYCODE_UNKNOWN) {
// If there's not a proper Xbox controller mapping, we'll translate the raw d-pad
// scan codes into proper key codes
switch (event.getScanCode())
{
case 704:
return KeyEvent.KEYCODE_DPAD_LEFT;
case 705:
return KeyEvent.KEYCODE_DPAD_RIGHT;
case 706:
return KeyEvent.KEYCODE_DPAD_UP;
case 707:
return KeyEvent.KEYCODE_DPAD_DOWN;
}
}
// Past here we can fixup the keycode and potentially trigger
// another special case so we need to remember what keycode we're using
int keyCode = event.getKeyCode();
// This is a hack for (at least) the "Tablet Remote" app
// which sends BACK with META_ALT_ON instead of KEYCODE_BUTTON_B
if (keyCode == KeyEvent.KEYCODE_BACK &&
!event.hasNoModifiers() &&
(event.getFlags() & KeyEvent.FLAG_SOFT_KEYBOARD) != 0)
{
keyCode = KeyEvent.KEYCODE_BUTTON_B;
}
return keyCode;
}
private Vector2d handleDeadZone(float x, float y, float deadzoneRadius) {
// Reinitialize our cached Vector2d object
inputVector.initialize(x, y);
if (inputVector.getMagnitude() <= deadzoneRadius) {
// Deadzone -- return the zero vector
return Vector2d.ZERO;
}
else {
// Scale the input based on the distance from the deadzone
inputVector.getNormalized(normalizedInputVector);
normalizedInputVector.scalarMultiply((inputVector.getMagnitude() - deadzoneRadius) / (1.0f - deadzoneRadius));
// Bound the X value to -1.0 to 1.0
if (normalizedInputVector.getX() > 1.0f) {
normalizedInputVector.setX(1.0f);
}
else if (normalizedInputVector.getX() < -1.0f) {
normalizedInputVector.setX(-1.0f);
}
// Bound the Y value to -1.0 to 1.0
if (normalizedInputVector.getY() > 1.0f) {
normalizedInputVector.setY(1.0f);
}
else if (normalizedInputVector.getY() < -1.0f) {
normalizedInputVector.setY(-1.0f);
}
return normalizedInputVector;
}
}
public boolean handleMotionEvent(MotionEvent event) {
ControllerMapping mapping = getMappingForDevice(event.getDevice());
// Handle left stick events outside of the deadzone
if (mapping.leftStickXAxis != -1 && mapping.leftStickYAxis != -1) {
Vector2d leftStickVector = handleDeadZone(event.getAxisValue(mapping.leftStickXAxis),
event.getAxisValue(mapping.leftStickYAxis), mapping.leftStickDeadzoneRadius);
leftStickX = (short)(leftStickVector.getX() * 0x7FFE);
leftStickY = (short)(-leftStickVector.getY() * 0x7FFE);
}
// Handle right stick events outside of the deadzone
if (mapping.rightStickXAxis != -1 && mapping.rightStickYAxis != -1) {
Vector2d rightStickVector = handleDeadZone(event.getAxisValue(mapping.rightStickXAxis),
event.getAxisValue(mapping.rightStickYAxis), mapping.rightStickDeadzoneRadius);
rightStickX = (short)(rightStickVector.getX() * 0x7FFE);
rightStickY = (short)(-rightStickVector.getY() * 0x7FFE);
}
// Handle controllers with analog triggers
if (mapping.leftTriggerAxis != -1 && mapping.rightTriggerAxis != -1) {
float L2 = event.getAxisValue(mapping.leftTriggerAxis);
float R2 = event.getAxisValue(mapping.rightTriggerAxis);
if (mapping.triggersIdleNegative) {
L2 = (L2 + 1) / 2;
R2 = (R2 + 1) / 2;
}
leftTrigger = (byte)(L2 * 0xFF);
rightTrigger = (byte)(R2 * 0xFF);
}
// Hats emulate d-pad events
if (mapping.hatXAxis != -1 && mapping.hatYAxis != -1) {
float hatX = event.getAxisValue(MotionEvent.AXIS_HAT_X);
float hatY = event.getAxisValue(MotionEvent.AXIS_HAT_Y);
inputMap &= ~(ControllerPacket.LEFT_FLAG | ControllerPacket.RIGHT_FLAG);
if (hatX < -(0.5 + mapping.hatXDeadzone)) {
inputMap |= ControllerPacket.LEFT_FLAG;
}
else if (hatX > (0.5 + mapping.hatXDeadzone)) {
inputMap |= ControllerPacket.RIGHT_FLAG;
}
inputMap &= ~(ControllerPacket.UP_FLAG | ControllerPacket.DOWN_FLAG);
if (hatY < -(0.5 + mapping.hatYDeadzone)) {
inputMap |= ControllerPacket.UP_FLAG;
}
else if (hatY > (0.5 + mapping.hatYDeadzone)) {
inputMap |= ControllerPacket.DOWN_FLAG;
}
}
sendControllerInputPacket();
return true;
}
public boolean handleButtonUp(KeyEvent event) {
ControllerMapping mapping = getMappingForDevice(event.getDevice());
int keyCode = handleRemapping(mapping, event);
if (keyCode == 0) {
return true;
}
// If the button hasn't been down long enough, sleep for a bit before sending the up event
// This allows "instant" button presses (like OUYA's virtual menu button) to work. This
// path should not be triggered during normal usage.
if (SystemClock.uptimeMillis() - event.getDownTime() < ControllerHandler.MINIMUM_BUTTON_DOWN_TIME_MS)
{
// Since our sleep time is so short (10 ms), it shouldn't cause a problem doing this in the
// UI thread.
try {
Thread.sleep(ControllerHandler.MINIMUM_BUTTON_DOWN_TIME_MS);
} catch (InterruptedException ignored) {}
}
switch (keyCode) {
case KeyEvent.KEYCODE_BUTTON_MODE:
inputMap &= ~ControllerPacket.SPECIAL_BUTTON_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_START:
case KeyEvent.KEYCODE_MENU:
inputMap &= ~ControllerPacket.PLAY_FLAG;
break;
case KeyEvent.KEYCODE_BACK:
case KeyEvent.KEYCODE_BUTTON_SELECT:
inputMap &= ~ControllerPacket.BACK_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
inputMap &= ~ControllerPacket.LEFT_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
inputMap &= ~ControllerPacket.RIGHT_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_UP:
inputMap &= ~ControllerPacket.UP_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
inputMap &= ~ControllerPacket.DOWN_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_B:
inputMap &= ~ControllerPacket.B_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_BUTTON_A:
inputMap &= ~ControllerPacket.A_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_X:
inputMap &= ~ControllerPacket.X_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_Y:
inputMap &= ~ControllerPacket.Y_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_L1:
inputMap &= ~ControllerPacket.LB_FLAG;
lastLbUpTime = SystemClock.uptimeMillis();
break;
case KeyEvent.KEYCODE_BUTTON_R1:
inputMap &= ~ControllerPacket.RB_FLAG;
lastRbUpTime = SystemClock.uptimeMillis();
break;
case KeyEvent.KEYCODE_BUTTON_THUMBL:
inputMap &= ~ControllerPacket.LS_CLK_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_THUMBR:
inputMap &= ~ControllerPacket.RS_CLK_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_L2:
leftTrigger = 0;
break;
case KeyEvent.KEYCODE_BUTTON_R2:
rightTrigger = 0;
break;
default:
return false;
}
// Check if we're emulating the select button
if ((emulatingButtonFlags & ControllerHandler.EMULATING_SELECT) != 0)
{
// If either start or LB is up, select comes up too
if ((inputMap & ControllerPacket.PLAY_FLAG) == 0 ||
(inputMap & ControllerPacket.LB_FLAG) == 0)
{
inputMap &= ~ControllerPacket.BACK_FLAG;
emulatingButtonFlags &= ~ControllerHandler.EMULATING_SELECT;
try {
Thread.sleep(EMULATED_SELECT_UP_DELAY_MS);
} catch (InterruptedException ignored) {}
}
}
// Check if we're emulating the special button
if ((emulatingButtonFlags & ControllerHandler.EMULATING_SPECIAL) != 0)
{
// If either start or select and RB is up, the special button comes up too
if ((inputMap & ControllerPacket.PLAY_FLAG) == 0 ||
((inputMap & ControllerPacket.BACK_FLAG) == 0 &&
(inputMap & ControllerPacket.RB_FLAG) == 0))
{
inputMap &= ~ControllerPacket.SPECIAL_BUTTON_FLAG;
emulatingButtonFlags &= ~ControllerHandler.EMULATING_SPECIAL;
try {
Thread.sleep(EMULATED_SPECIAL_UP_DELAY_MS);
} catch (InterruptedException ignored) {}
}
}
sendControllerInputPacket();
return true;
}
public boolean handleButtonDown(KeyEvent event) {
ControllerMapping mapping = getMappingForDevice(event.getDevice());
int keyCode = handleRemapping(mapping, event);
if (keyCode == 0) {
return true;
}
switch (keyCode) {
case KeyEvent.KEYCODE_BUTTON_MODE:
inputMap |= ControllerPacket.SPECIAL_BUTTON_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_START:
case KeyEvent.KEYCODE_MENU:
inputMap |= ControllerPacket.PLAY_FLAG;
break;
case KeyEvent.KEYCODE_BACK:
case KeyEvent.KEYCODE_BUTTON_SELECT:
inputMap |= ControllerPacket.BACK_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_LEFT:
inputMap |= ControllerPacket.LEFT_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_RIGHT:
inputMap |= ControllerPacket.RIGHT_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_UP:
inputMap |= ControllerPacket.UP_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_DOWN:
inputMap |= ControllerPacket.DOWN_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_B:
inputMap |= ControllerPacket.B_FLAG;
break;
case KeyEvent.KEYCODE_DPAD_CENTER:
case KeyEvent.KEYCODE_BUTTON_A:
inputMap |= ControllerPacket.A_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_X:
inputMap |= ControllerPacket.X_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_Y:
inputMap |= ControllerPacket.Y_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_L1:
inputMap |= ControllerPacket.LB_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_R1:
inputMap |= ControllerPacket.RB_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_THUMBL:
inputMap |= ControllerPacket.LS_CLK_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_THUMBR:
inputMap |= ControllerPacket.RS_CLK_FLAG;
break;
case KeyEvent.KEYCODE_BUTTON_L2:
leftTrigger = (byte)0xFF;
break;
case KeyEvent.KEYCODE_BUTTON_R2:
rightTrigger = (byte)0xFF;
break;
default:
return false;
}
// Start+LB acts like select for controllers with one button
if ((inputMap & ControllerPacket.PLAY_FLAG) != 0 &&
((inputMap & ControllerPacket.LB_FLAG) != 0 ||
SystemClock.uptimeMillis() - lastLbUpTime <= MAXIMUM_BUMPER_UP_DELAY_MS))
{
inputMap &= ~(ControllerPacket.PLAY_FLAG | ControllerPacket.LB_FLAG);
inputMap |= ControllerPacket.BACK_FLAG;
emulatingButtonFlags |= ControllerHandler.EMULATING_SELECT;
}
// We detect select+start or start+RB as the special button combo
if (((inputMap & ControllerPacket.RB_FLAG) != 0 ||
(SystemClock.uptimeMillis() - lastRbUpTime <= MAXIMUM_BUMPER_UP_DELAY_MS) ||
(inputMap & ControllerPacket.BACK_FLAG) != 0) &&
(inputMap & ControllerPacket.PLAY_FLAG) != 0)
{
inputMap &= ~(ControllerPacket.BACK_FLAG | ControllerPacket.PLAY_FLAG | ControllerPacket.RB_FLAG);
inputMap |= ControllerPacket.SPECIAL_BUTTON_FLAG;
emulatingButtonFlags |= ControllerHandler.EMULATING_SPECIAL;
}
sendControllerInputPacket();
return true;
}
class ControllerMapping {
public int leftStickXAxis = -1;
public int leftStickYAxis = -1;
public float leftStickDeadzoneRadius;
public int rightStickXAxis = -1;
public int rightStickYAxis = -1;
public float rightStickDeadzoneRadius;
public int leftTriggerAxis = -1;
public int rightTriggerAxis = -1;
public boolean triggersIdleNegative;
public int hatXAxis = -1;
public int hatYAxis = -1;
public float hatXDeadzone;
public float hatYDeadzone;
public boolean isDualShock4;
public boolean isXboxController;
}
}