add input descriptors

1 files changed, 18 insertions, 0 deletions

diff --git a/libretro.c b/libretro.c
index 336fb0d..6faae5f 100644
--- a/libretro.c
+++ b/libretro.c
@@ -298,9 +298,27 @@ static void check_variables(int started_from_load)
 #endif
 }
 
+static void set_input_descriptors()
+{
+   struct retro_input_descriptor descriptors[] = {
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_LEFT,  "D-Pad Left" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_UP,    "D-Pad Up" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_DOWN,  "D-Pad Down" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_RIGHT, "D-Pad Right" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_B,     "B" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_A,     "A" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_SELECT,   "Select" },
+      { 0, RETRO_DEVICE_JOYPAD, 0, RETRO_DEVICE_ID_JOYPAD_START,    "Start" },
+      { 0 },
+   };
+
+   environ_cb(RETRO_ENVIRONMENT_SET_INPUT_DESCRIPTORS, descriptors);
+}
+
 bool retro_load_game(const struct retro_game_info* info)
 {
    check_variables(1);
+   set_input_descriptors();
 
 #if defined(HAVE_DYNAREC)
    if (dynarec_enable)