Android: implement al_get_joystick_name()

Author: alemart

android/gradle_project/allegro/src/main/java/org/liballeg/android/AllegroActivity.java

@@ -575,6 +575,18 @@ public int indexOfJoystick(int id) {
       return joysticks.indexOf(id, 0);
    }
 
+   public String getJoystickName(int index) {
+      if (index >= 0 && index < joysticks.size()) {
+         int id = joysticks.get(index);
+         InputDevice input = InputDevice.getDevice(id);
+
+         if (input != null)
+            return input.getName();
+      }
+
+      return "";
+   }
+
    public void setJoystickActive() {
       joystickActive = true;
    }

src/android/android_joystick.c

@@ -9,25 +9,37 @@ ALLEGRO_DEBUG_CHANNEL("android")
 typedef struct ALLEGRO_JOYSTICK_ANDROID {
    ALLEGRO_JOYSTICK parent;
    ALLEGRO_JOYSTICK_STATE joystate;
-   const char *name;
+   char name[64];
 } ALLEGRO_JOYSTICK_ANDROID;
 
 static _AL_VECTOR joysticks = _AL_VECTOR_INITIALIZER(ALLEGRO_JOYSTICK_ANDROID *);
 static bool initialized;
 
+static char *android_get_joystick_name(JNIEnv *env, jobject activity, int index, char *buffer, size_t buffer_size)
+{
+    jobject str_obj = _jni_callObjectMethodV(env, activity, "getJoystickName", "(I)Ljava/lang/String;", (jint)index);
+    ALLEGRO_USTR *s = _jni_getString(env, str_obj);
+    _al_sane_strncpy(buffer, al_cstr(s), buffer_size);
+    al_ustr_free(s);
+
+    return buffer;
+}
+
 static void android_init_joysticks(int num)
 {
     int i, j;
+    JNIEnv *env = _al_android_get_jnienv();
+    jobject activity = _al_android_activity_object();
 
     for (i = 0; i < num; i++) {
        ALLEGRO_JOYSTICK_ANDROID *stick = al_calloc(1, sizeof(ALLEGRO_JOYSTICK_ANDROID));
        ALLEGRO_JOYSTICK_ANDROID **ptr;
        ALLEGRO_JOYSTICK *joy;
 
        joy = (void *)stick;
-       stick->name = "Android Joystick";
 
        /* Fill in the joystick information fields. */
+       android_get_joystick_name(env, activity, i, stick->name, sizeof(stick->name));
        joy->info.num_sticks = 2;
        joy->info.num_buttons = 11;
        joy->info.stick[0].name = "Stick 1";
@@ -57,11 +69,10 @@ static bool andjoy_init_joystick(void)
     ALLEGRO_JOYSTICK *joy;
     int num;
 
-    accel->name = "Accelerometer";
-
     joy = (void *)accel;
 
     /* Fill in the joystick information fields. */
+    _al_sane_strncpy(accel->name, "Accelerometer", sizeof(accel->name));
     joy->info.num_sticks = 1;
     joy->info.num_buttons = 0;
     joy->info.stick[0].name = "Accelerometer";