Add rumble tests to libretro-test.

driver.c

@@ -311,7 +311,7 @@ void driver_set_nonblock_state(bool nonblock)
 
 bool driver_set_rumble_state(unsigned port, enum retro_rumble_effect effect, bool enable)
 {
-   if (driver.input && driver.input_data)
+   if (driver.input && driver.input_data && driver.input->set_rumble)
       return driver.input->set_rumble(driver.input_data, port, effect, enable);
    else
       return false;

input/input_common.c

@@ -109,7 +109,7 @@ const char *input_joypad_name(const rarch_joypad_driver_t *driver, unsigned joyp
 bool input_joypad_set_rumble(const rarch_joypad_driver_t *driver,
       unsigned port, enum retro_rumble_effect effect, bool state)
 {
-   if (!driver)
+   if (!driver || !driver->set_rumble)
       return false;
 
    int joy_index = g_settings.input.joypad_map[port];

input/udev_joypad.c

@@ -177,8 +177,9 @@ end:
    udev_device_unref(dev);
 }
 
-static bool udev_set_rumble(unsigned i, unsigned effect, bool state)
+static bool udev_set_rumble(unsigned i, enum retro_rumble_effect effect, bool state)
 {
+   fprintf(stderr, "Rumble: Pad %u, Effect %u, State %u.\n", i, (unsigned)effect, (unsigned)state);
    struct udev_joypad *pad = &g_pads[i];
 
    if (pad->fd < 0)
@@ -264,13 +265,11 @@ static int find_vacant_pad(void)
 static void free_pad(unsigned pad)
 {
    if (g_pads[pad].fd >= 0)
-   {
-      udev_set_rumble(pad, 0, false);
-      udev_set_rumble(pad, 1, false);
       close(g_pads[pad].fd);
-   }
 
    free(g_pads[pad].path);
+   if (g_pads[pad].ident)
+      *g_pads[pad].ident = '\0';
    memset(&g_pads[pad], 0, sizeof(g_pads[pad]));
    g_pads[pad].fd = -1;
 
@@ -280,8 +279,12 @@ static void free_pad(unsigned pad)
 static bool add_pad(unsigned i, int fd, const char *path)
 {
    struct udev_joypad *pad = &g_pads[i];
+   pad->ident = g_settings.input.device_names[i];
    if (ioctl(fd, EVIOCGNAME(sizeof(g_settings.input.device_names[0])), pad->ident) < 0)
+   {
+      RARCH_LOG("[udev]: Failed to get pad name.\n");
       return false;
+   }
 
    RARCH_LOG("[udev]: Plugged pad: %s on port #%u.\n", pad->ident, i);
 

libretro-test/libretro-test.c

@@ -61,6 +61,8 @@ static retro_environment_t environ_cb;
 static retro_input_poll_t input_poll_cb;
 static retro_input_state_t input_state_cb;
 
+static struct retro_rumble_interface rumble;
+
 void retro_set_environment(retro_environment_t cb)
 {
    environ_cb = cb;
@@ -173,6 +175,30 @@ static void update_input(void)
 
    x_coord = (x_coord + dir_x) & 31;
    y_coord = (y_coord + dir_y) & 31;
+
+   if (rumble.set_rumble_state)
+   {
+      static bool old_start;
+      static bool old_select;
+      bool start = input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START);
+      bool select = input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT);
+      if (old_start != start)
+      {
+         fprintf(stderr, "Strong rumble: %s.\n", start ? "ON": "OFF");
+         if (!rumble.set_rumble_state(0, RETRO_RUMBLE_STRONG, start))
+            fprintf(stderr, "Strong rumble; failed to set state.\n");
+      }
+
+      if (old_select != select)
+      {
+         fprintf(stderr, "Weak rumble: %s.\n", select ? "ON": "OFF");
+         if (!rumble.set_rumble_state(0, RETRO_RUMBLE_WEAK, select))
+            fprintf(stderr, "Weak rumble; failed to set state.\n");
+      }
+
+      old_start = start;
+      old_select = select;
+   }
 }
 
 static void render_checkered(void)
@@ -262,6 +288,10 @@ bool retro_load_game(const struct retro_game_info *info)
 
    struct retro_keyboard_callback cb = { keyboard_cb };
    environ_cb(RETRO_ENVIRONMENT_SET_KEYBOARD_CALLBACK, &cb);
+   if (environ_cb(RETRO_ENVIRONMENT_GET_RUMBLE_INTERFACE, &rumble))
+      fprintf(stderr, "Rumble environment supported.\n");
+   else
+      fprintf(stderr, "Rumble environment not supported.\n");
 
    check_variables();