Implement rumble on Android InputDevice

This commit is contained in:
Cameron Gutman 2019-02-16 17:56:34 -08:00
parent 4f3d018764
commit 92b71588d0
2 changed files with 32 additions and 0 deletions

View File

@ -4,6 +4,7 @@
<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" /> <uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

View File

@ -4,8 +4,10 @@ import android.content.Context;
import android.hardware.input.InputManager; import android.hardware.input.InputManager;
import android.hardware.usb.UsbDevice; import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbManager; import android.hardware.usb.UsbManager;
import android.media.AudioAttributes;
import android.os.Build; import android.os.Build;
import android.os.SystemClock; import android.os.SystemClock;
import android.os.VibrationEffect;
import android.os.Vibrator; import android.os.Vibrator;
import android.util.SparseArray; import android.util.SparseArray;
import android.view.InputDevice; import android.view.InputDevice;
@ -1051,7 +1053,36 @@ public class ControllerHandler implements InputManager.InputDeviceListener, UsbD
} }
private void rumbleVibrator(Vibrator vibrator, short lowFreqMotor, short highFreqMotor) { private void rumbleVibrator(Vibrator vibrator, short lowFreqMotor, short highFreqMotor) {
if (lowFreqMotor == 0 && highFreqMotor == 0) {
// This case is easy - just cancel and get out
vibrator.cancel();
return;
}
// Since we can only use a single amplitude value, compute the desired amplitude
// by taking 75% of the big motor and 25% of the small motor.
// NB: This value is now 0-255 as required by VibrationEffect.
int simulatedAmplitude = (int)(((lowFreqMotor >> 8) * 0.75) + ((highFreqMotor >> 8) * 0.25));
// Attempt to use amplitude-based control if we're on Oreo and the device
// supports amplitude-based vibration control.
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
if (vibrator.hasAmplitudeControl()) {
VibrationEffect effect = VibrationEffect.createOneShot(Long.MAX_VALUE, simulatedAmplitude);
AudioAttributes audioAttributes = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_GAME)
.build();
vibrator.vibrate(effect, audioAttributes);
return;
}
}
// If we reach this point, we don't have amplitude controls available, so
// we must emulate it by PWMing the vibration. Ick.
long pwmPeriod = 50;
long onTime = (long)((simulatedAmplitude / 255.0) * pwmPeriod);
long offTime = pwmPeriod - onTime;
vibrator.vibrate(new long[]{offTime, onTime}, 0);
} }
public void handleRumble(short controllerNumber, short lowFreqMotor, short highFreqMotor) { public void handleRumble(short controllerNumber, short lowFreqMotor, short highFreqMotor) {