Android: Let WiimoteEmu know whether we have accelerometer/gyroscope

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/NativeLibrary.java

@@ -265,6 +265,9 @@ public final class NativeLibrary
     Rumble.checkRumble(padID, state);
   }
 
+  public static native void SetMotionSensorsEnabled(boolean accelerometerEnabled,
+          boolean gyroscopeEnabled);
+
   public static native void NewGameIniFile();
 
   public static native void LoadGameIniFile(String gameId);

Source/Android/app/src/main/java/org/dolphinemu/dolphinemu/utils/MotionListener.java

@@ -101,10 +101,14 @@ public class MotionListener implements SensorEventListener
       mSensorManager.registerListener(this, mAccelSensor, SAMPLING_PERIOD_US);
     if (mGyroSensor != null)
       mSensorManager.registerListener(this, mGyroSensor, SAMPLING_PERIOD_US);
+
+    NativeLibrary.SetMotionSensorsEnabled(mAccelSensor != null, mGyroSensor != null);
   }
 
   public void disable()
   {
     mSensorManager.unregisterListener(this);
+
+    NativeLibrary.SetMotionSensorsEnabled(false, false);
   }
 }

Source/Android/jni/MainAndroid.cpp

@@ -47,6 +47,8 @@
 #include "DiscIO/Enums.h"
 #include "DiscIO/Volume.h"
 
+#include "InputCommon/ControllerInterface/Android/Android.h"
+
 #include "UICommon/UICommon.h"
 
 #include "VideoCommon/OnScreenDisplay.h"
@@ -200,6 +202,8 @@ JNIEXPORT jboolean JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_onGamePa
     JNIEnv* env, jobject obj, jstring jDevice, jint Button, jint Action);
 JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_onGamePadMoveEvent(
     JNIEnv* env, jobject obj, jstring jDevice, jint Axis, jfloat Value);
+JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_SetMotionSensorsEnabled(
+    JNIEnv* env, jobject obj, jboolean accelerometer_enabled, jboolean gyroscope_enabled);
 JNIEXPORT jstring JNICALL
 Java_org_dolphinemu_dolphinemu_NativeLibrary_GetVersionString(JNIEnv* env, jobject obj);
 JNIEXPORT jstring JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_GetGitRevision(JNIEnv* env,
@@ -308,6 +312,12 @@ JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_onGamePadMov
   ButtonManager::GamepadAxisEvent(GetJString(env, jDevice), Axis, Value);
 }
 
+JNIEXPORT void JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_SetMotionSensorsEnabled(
+    JNIEnv* env, jobject obj, jboolean accelerometer_enabled, jboolean gyroscope_enabled)
+{
+  ciface::Android::SetMotionSensorsEnabled(accelerometer_enabled, gyroscope_enabled);
+}
+
 JNIEXPORT jstring JNICALL Java_org_dolphinemu_dolphinemu_NativeLibrary_GetVersionString(JNIEnv* env,
                                                                                         jobject obj)
 {

Source/Core/InputCommon/ControllerInterface/Android/Android.cpp

@@ -10,6 +10,21 @@
 
 namespace ciface::Android
 {
+static bool s_accelerometer_enabled = false;
+static bool s_gyroscope_enabled = false;
+
+void SetMotionSensorsEnabled(bool accelerometer_enabled, bool gyroscope_enabled)
+{
+  const bool any_changes =
+      s_accelerometer_enabled != accelerometer_enabled || s_gyroscope_enabled != gyroscope_enabled;
+
+  s_accelerometer_enabled = accelerometer_enabled;
+  s_gyroscope_enabled = gyroscope_enabled;
+
+  if (any_changes)
+    g_controller_interface.RefreshDevices();
+}
+
 void PopulateDevices()
 {
   for (int i = 0; i < 8; ++i)
@@ -186,18 +201,26 @@ Touchscreen::Touchscreen(int padID) : _padID(padID)
   AddInput(new Axis(_padID, ButtonManager::TURNTABLE_EFFECT_DIAL));
 
   // Wiimote IMU
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_LEFT));
+  // Only add inputs if we actually can receive data from the relevant sensor.
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_RIGHT));
+  // Whether inputs exist affects what WiimoteEmu gets when calling ControlReference::BoundCount.
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_FORWARD));
+  if (s_accelerometer_enabled)
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_BACKWARD));
+  {
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_UP));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_LEFT));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_DOWN));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_RIGHT));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_PITCH_UP));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_FORWARD));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_PITCH_DOWN));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_BACKWARD));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_ROLL_LEFT));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_UP));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_ROLL_RIGHT));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_ACCEL_DOWN));
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_YAW_LEFT));
+  }
-  AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_YAW_RIGHT));
+  if (s_gyroscope_enabled)
+  {
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_PITCH_UP));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_PITCH_DOWN));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_ROLL_LEFT));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_ROLL_RIGHT));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_YAW_LEFT));
+    AddInput(new Axis(_padID, ButtonManager::WIIMOTE_GYRO_YAW_RIGHT));
+  }
 
   // Rumble
   AddOutput(new Motor(_padID, ButtonManager::RUMBLE));

Source/Core/InputCommon/ControllerInterface/Android/Android.h

@@ -9,6 +9,8 @@
 
 namespace ciface::Android
 {
+void SetMotionSensorsEnabled(bool accelerometer_enabled, bool gyroscope_enabled);
+
 void PopulateDevices();
 
 class Touchscreen : public Core::Device