Memory cleanup and optimizations

- Returns an empty list when there's not registered plugins, thus preventing the creation of spurious iterator objects

- Inline `Godot#getRotatedValues(...)` given it only had a single caller. This allows to remove the allocation of a float array on each call and replace it with float variables

- Disable sensor events by default. Sensor events can fired at 10-100s Hz taking cpu and memory resources. Now the use of sensor data is behind a project setting allowing projects that have use of it to enable it, while other projects don't pay the cost for a feature they don't use

- Create a pool of specialized input `Runnable` objects to prevent spurious, unbounded `Runnable` allocations

- Disable showing the boot logo for Android XR projects

- Delete locale references of jni strings

core/config/project_settings.cpp

@@ -1570,6 +1570,11 @@ ProjectSettings::ProjectSettings() {
 
 	GLOBAL_DEF("collada/use_ambient", false);
 
+	// Input settings
+	GLOBAL_DEF_BASIC("input_devices/pointing/android/enable_long_press_as_right_click", false);
+	GLOBAL_DEF_BASIC("input_devices/pointing/android/enable_pan_and_scale_gestures", false);
+	GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "input_devices/pointing/android/rotary_input_scroll_axis", PROPERTY_HINT_ENUM, "Horizontal,Vertical"), 1);
+
 	// These properties will not show up in the dialog. If you want to exclude whole groups, use add_hidden_prefix().
 	GLOBAL_DEF_INTERNAL("application/config/features", PackedStringArray());
 	GLOBAL_DEF_INTERNAL("internationalization/locale/translation_remaps", PackedStringArray());

core/input/input.cpp

@@ -513,21 +513,49 @@ void Input::joy_connection_changed(int p_idx, bool p_connected, const String &p_
 
 Vector3 Input::get_gravity() const {
 	_THREAD_SAFE_METHOD_
+
+#ifdef DEBUG_ENABLED
+	if (!gravity_enabled) {
+		WARN_PRINT_ONCE("`input_devices/sensors/enable_gravity` is not enabled in project settings.");
+	}
+#endif
+
 	return gravity;
 }
 
 Vector3 Input::get_accelerometer() const {
 	_THREAD_SAFE_METHOD_
+
+#ifdef DEBUG_ENABLED
+	if (!accelerometer_enabled) {
+		WARN_PRINT_ONCE("`input_devices/sensors/enable_accelerometer` is not enabled in project settings.");
+	}
+#endif
+
 	return accelerometer;
 }
 
 Vector3 Input::get_magnetometer() const {
 	_THREAD_SAFE_METHOD_
+
+#ifdef DEBUG_ENABLED
+	if (!magnetometer_enabled) {
+		WARN_PRINT_ONCE("`input_devices/sensors/enable_magnetometer` is not enabled in project settings.");
+	}
+#endif
+
 	return magnetometer;
 }
 
 Vector3 Input::get_gyroscope() const {
 	_THREAD_SAFE_METHOD_
+
+#ifdef DEBUG_ENABLED
+	if (!gyroscope_enabled) {
+		WARN_PRINT_ONCE("`input_devices/sensors/enable_gyroscope` is not enabled in project settings.");
+	}
+#endif
+
 	return gyroscope;
 }
 
@@ -1683,6 +1711,11 @@ Input::Input() {
 		// Always use standard behavior in the editor.
 		legacy_just_pressed_behavior = false;
 	}
+
+	accelerometer_enabled = GLOBAL_DEF_RST_BASIC("input_devices/sensors/enable_accelerometer", false);
+	gravity_enabled = GLOBAL_DEF_RST_BASIC("input_devices/sensors/enable_gravity", false);
+	gyroscope_enabled = GLOBAL_DEF_RST_BASIC("input_devices/sensors/enable_gyroscope", false);
+	magnetometer_enabled = GLOBAL_DEF_RST_BASIC("input_devices/sensors/enable_magnetometer", false);
 }
 
 Input::~Input() {

core/input/input.h

@@ -92,9 +92,13 @@ class Input : public Object {
 	RBSet<JoyButton> joy_buttons_pressed;
 	RBMap<JoyAxis, float> _joy_axis;
 	//RBMap<StringName,int> custom_action_press;
+	bool gravity_enabled = false;
 	Vector3 gravity;
+	bool accelerometer_enabled = false;
 	Vector3 accelerometer;
+	bool magnetometer_enabled = false;
 	Vector3 magnetometer;
+	bool gyroscope_enabled = false;
 	Vector3 gyroscope;
 	Vector2 mouse_pos;
 	int64_t mouse_window = 0;

doc/classes/ProjectSettings.xml

@@ -1422,6 +1422,18 @@
 		<member name="input_devices/pointing/emulate_touch_from_mouse" type="bool" setter="" getter="" default="false">
 			If [code]true[/code], sends touch input events when clicking or dragging the mouse.
 		</member>
+		<member name="input_devices/sensors/enable_accelerometer" type="bool" setter="" getter="" default="false">
+			If [code]true[/code], the accelerometer sensor is enabled and [method Input.get_accelerometer] returns valid data.
+		</member>
+		<member name="input_devices/sensors/enable_gravity" type="bool" setter="" getter="" default="false">
+			If [code]true[/code], the gravity sensor is enabled and [method Input.get_gravity] returns valid data.
+		</member>
+		<member name="input_devices/sensors/enable_gyroscope" type="bool" setter="" getter="" default="false">
+			If [code]true[/code], the gyroscope sensor is enabled and [method Input.get_gyroscope] returns valid data.
+		</member>
+		<member name="input_devices/sensors/enable_magnetometer" type="bool" setter="" getter="" default="false">
+			If [code]true[/code], the magnetometer sensor is enabled and [method Input.get_magnetometer] returns valid data.
+		</member>
 		<member name="internationalization/locale/fallback" type="String" setter="" getter="" default="&quot;en&quot;">
 			The locale to fall back to if a translation isn't available in a given language. If left empty, [code]en[/code] (English) will be used.
 		</member>

main/main.cpp

@@ -2942,9 +2942,6 @@ Error Main::setup2(bool p_show_boot_logo) {
 			id->set_emulate_mouse_from_touch(bool(GLOBAL_DEF_BASIC("input_devices/pointing/emulate_mouse_from_touch", true)));
 		}
 
-		GLOBAL_DEF_BASIC("input_devices/pointing/android/enable_long_press_as_right_click", false);
-		GLOBAL_DEF_BASIC("input_devices/pointing/android/enable_pan_and_scale_gestures", false);
-		GLOBAL_DEF_BASIC(PropertyInfo(Variant::INT, "input_devices/pointing/android/rotary_input_scroll_axis", PROPERTY_HINT_ENUM, "Horizontal,Vertical"), 1);
 		OS::get_singleton()->benchmark_end_measure("Startup", "Setup Window and Boot");
 	}
 

platform/android/java/lib/src/org/godotengine/godot/Godot.kt

@@ -39,8 +39,6 @@ import android.content.res.Configuration
 import android.content.res.Resources
 import android.graphics.Color
 import android.hardware.Sensor
-import android.hardware.SensorEvent
-import android.hardware.SensorEventListener
 import android.hardware.SensorManager
 import android.os.*
 import android.util.Log
@@ -53,6 +51,7 @@ import androidx.core.view.WindowInsetsAnimationCompat
 import androidx.core.view.WindowInsetsCompat
 import com.google.android.vending.expansion.downloader.*
 import org.godotengine.godot.input.GodotEditText
+import org.godotengine.godot.input.GodotInputHandler
 import org.godotengine.godot.io.directory.DirectoryAccessHandler
 import org.godotengine.godot.io.file.FileAccessHandler
 import org.godotengine.godot.plugin.GodotPluginRegistry
@@ -73,6 +72,7 @@ import java.io.InputStream
 import java.lang.Exception
 import java.security.MessageDigest
 import java.util.*
+import java.util.concurrent.atomic.AtomicBoolean
 import java.util.concurrent.atomic.AtomicReference
 
 /**
@@ -81,7 +81,7 @@ import java.util.concurrent.atomic.AtomicReference
  * Can be hosted by [Activity], [Fragment] or [Service] android components, so long as its
  * lifecycle methods are properly invoked.
  */
-class Godot(private val context: Context) : SensorEventListener {
+class Godot(private val context: Context) {
 
 	private companion object {
 		private val TAG = Godot::class.java.simpleName
@@ -99,15 +99,23 @@ class Godot(private val context: Context) : SensorEventListener {
 	private val pluginRegistry: GodotPluginRegistry by lazy {
 		GodotPluginRegistry.getPluginRegistry()
 	}
+
+	private val accelerometer_enabled = AtomicBoolean(false)
 	private val mAccelerometer: Sensor? by lazy {
 		mSensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER)
 	}
+
+	private val gravity_enabled = AtomicBoolean(false)
 	private val mGravity: Sensor? by lazy {
 		mSensorManager.getDefaultSensor(Sensor.TYPE_GRAVITY)
 	}
+
+	private val magnetometer_enabled = AtomicBoolean(false)
 	private val mMagnetometer: Sensor? by lazy {
 		mSensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD)
 	}
+
+	private val gyroscope_enabled = AtomicBoolean(false)
 	private val mGyroscope: Sensor? by lazy {
 		mSensorManager.getDefaultSensor(Sensor.TYPE_GYROSCOPE)
 	}
@@ -127,6 +135,7 @@ class Godot(private val context: Context) : SensorEventListener {
 	val fileAccessHandler = FileAccessHandler(context)
 	val netUtils = GodotNetUtils(context)
 	private val commandLineFileParser = CommandLineFileParser()
+	private val godotInputHandler = GodotInputHandler(context, this)
 
 	/**
 	 * Task to run when the engine terminates.
@@ -154,6 +163,17 @@ class Godot(private val context: Context) : SensorEventListener {
 	private var renderViewInitialized = false
 	private var primaryHost: GodotHost? = null
 
+	/**
+	 * Tracks whether we're in the RESUMED lifecycle state.
+	 * See [onResume] and [onPause]
+	 */
+	private var resumed = false
+
+	/**
+	 * Tracks whether [onGodotSetupCompleted] fired.
+	 */
+	private val godotMainLoopStarted = AtomicBoolean(false)
+
 	var io: GodotIO? = null
 
 	private var commandLine : MutableList<String> = ArrayList<String>()
@@ -416,10 +436,10 @@ class Godot(private val context: Context) : SensorEventListener {
 				if (!meetsVulkanRequirements(activity.packageManager)) {
 					throw IllegalStateException(activity.getString(R.string.error_missing_vulkan_requirements_message))
 				}
-				GodotVulkanRenderView(host, this)
+				GodotVulkanRenderView(host, this, godotInputHandler)
 			} else {
 				// Fallback to openGl
-				GodotGLRenderView(host, this, xrMode, useDebugOpengl)
+				GodotGLRenderView(host, this, godotInputHandler, xrMode, useDebugOpengl)
 			}
 
 			if (host == primaryHost) {
@@ -520,23 +540,13 @@ class Godot(private val context: Context) : SensorEventListener {
 
 	fun onResume(host: GodotHost) {
 		Log.v(TAG, "OnResume: $host")
+		resumed = true
 		if (host != primaryHost) {
 			return
 		}
 
 		renderView?.onActivityResumed()
-		if (mAccelerometer != null) {
-			mSensorManager.registerListener(this, mAccelerometer, SensorManager.SENSOR_DELAY_GAME)
-		}
-		if (mGravity != null) {
-			mSensorManager.registerListener(this, mGravity, SensorManager.SENSOR_DELAY_GAME)
-		}
-		if (mMagnetometer != null) {
-			mSensorManager.registerListener(this, mMagnetometer, SensorManager.SENSOR_DELAY_GAME)
-		}
-		if (mGyroscope != null) {
-			mSensorManager.registerListener(this, mGyroscope, SensorManager.SENSOR_DELAY_GAME)
-		}
+		registerSensorsIfNeeded()
 		if (useImmersive) {
 			val window = requireActivity().window
 			window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_STABLE or
@@ -551,14 +561,34 @@ class Godot(private val context: Context) : SensorEventListener {
 		}
 	}
 
+	private fun registerSensorsIfNeeded() {
+		if (!resumed || !godotMainLoopStarted.get()) {
+			return
+		}
+
+		if (accelerometer_enabled.get() && mAccelerometer != null) {
+			mSensorManager.registerListener(godotInputHandler, mAccelerometer, SensorManager.SENSOR_DELAY_GAME)
+		}
+		if (gravity_enabled.get() && mGravity != null) {
+			mSensorManager.registerListener(godotInputHandler, mGravity, SensorManager.SENSOR_DELAY_GAME)
+		}
+		if (magnetometer_enabled.get() && mMagnetometer != null) {
+			mSensorManager.registerListener(godotInputHandler, mMagnetometer, SensorManager.SENSOR_DELAY_GAME)
+		}
+		if (gyroscope_enabled.get() && mGyroscope != null) {
+			mSensorManager.registerListener(godotInputHandler, mGyroscope, SensorManager.SENSOR_DELAY_GAME)
+		}
+	}
+
 	fun onPause(host: GodotHost) {
 		Log.v(TAG, "OnPause: $host")
+		resumed = false
 		if (host != primaryHost) {
 			return
 		}
 
 		renderView?.onActivityPaused()
-		mSensorManager.unregisterListener(this)
+		mSensorManager.unregisterListener(godotInputHandler)
 		for (plugin in pluginRegistry.allPlugins) {
 			plugin.onMainPause()
 		}
@@ -659,6 +689,16 @@ class Godot(private val context: Context) : SensorEventListener {
 	 */
 	private fun onGodotMainLoopStarted() {
 		Log.v(TAG, "OnGodotMainLoopStarted")
+		godotMainLoopStarted.set(true)
+
+		accelerometer_enabled.set(java.lang.Boolean.parseBoolean(GodotLib.getGlobal("input_devices/sensors/enable_accelerometer")))
+		gravity_enabled.set(java.lang.Boolean.parseBoolean(GodotLib.getGlobal("input_devices/sensors/enable_gravity")))
+		gyroscope_enabled.set(java.lang.Boolean.parseBoolean(GodotLib.getGlobal("input_devices/sensors/enable_gyroscope")))
+		magnetometer_enabled.set(java.lang.Boolean.parseBoolean(GodotLib.getGlobal("input_devices/sensors/enable_magnetometer")))
+
+		runOnUiThread {
+			registerSensorsIfNeeded()
+		}
 
 		for (plugin in pluginRegistry.allPlugins) {
 			plugin.onGodotMainLoopStarted()
@@ -858,77 +898,6 @@ class Godot(private val context: Context) : SensorEventListener {
 		}
 	}
 
-	private fun getRotatedValues(values: FloatArray?): FloatArray? {
-		if (values == null || values.size != 3) {
-			return null
-		}
-		val rotatedValues = FloatArray(3)
-		when (windowManager.defaultDisplay.rotation) {
-			Surface.ROTATION_0 -> {
-				rotatedValues[0] = values[0]
-				rotatedValues[1] = values[1]
-				rotatedValues[2] = values[2]
-			}
-			Surface.ROTATION_90 -> {
-				rotatedValues[0] = -values[1]
-				rotatedValues[1] = values[0]
-				rotatedValues[2] = values[2]
-			}
-			Surface.ROTATION_180 -> {
-				rotatedValues[0] = -values[0]
-				rotatedValues[1] = -values[1]
-				rotatedValues[2] = values[2]
-			}
-			Surface.ROTATION_270 -> {
-				rotatedValues[0] = values[1]
-				rotatedValues[1] = -values[0]
-				rotatedValues[2] = values[2]
-			}
-		}
-		return rotatedValues
-	}
-
-	override fun onSensorChanged(event: SensorEvent) {
-		if (renderView == null) {
-			return
-		}
-
-		val rotatedValues = getRotatedValues(event.values)
-
-		when (event.sensor.type) {
-			Sensor.TYPE_ACCELEROMETER -> {
-				rotatedValues?.let {
-					renderView?.queueOnRenderThread {
-						GodotLib.accelerometer(-it[0], -it[1], -it[2])
-					}
-				}
-			}
-			Sensor.TYPE_GRAVITY -> {
-				rotatedValues?.let {
-					renderView?.queueOnRenderThread {
-						GodotLib.gravity(-it[0], -it[1], -it[2])
-					}
-				}
-			}
-			Sensor.TYPE_MAGNETIC_FIELD -> {
-				rotatedValues?.let {
-					renderView?.queueOnRenderThread {
-						GodotLib.magnetometer(-it[0], -it[1], -it[2])
-					}
-				}
-			}
-			Sensor.TYPE_GYROSCOPE -> {
-				rotatedValues?.let {
-					renderView?.queueOnRenderThread {
-						GodotLib.gyroscope(it[0], it[1], it[2])
-					}
-				}
-			}
-		}
-	}
-
-	override fun onAccuracyChanged(sensor: Sensor?, accuracy: Int) {}
-
 	/**
 	 * Used by the native code (java_godot_wrapper.h) to vibrate the device.
 	 * @param durationMs
@@ -1063,7 +1032,7 @@ class Godot(private val context: Context) : SensorEventListener {
 
 	@Keep
 	private fun initInputDevices() {
-		renderView?.initInputDevices()
+		godotInputHandler.initInputDevices()
 	}
 
 	@Keep