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Added Steam Input API support for game controllers

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Added support for getting the real controller info, as well as the function SDL_GetGamepadSteamHandle() to get the Steam Input API handle, from the virtual gamepads provided by Steam.

Also added an event SDL_EVENT_GAMEPAD_STEAM_HANDLE_UPDATED which is triggered when a controller's API handle changes, e.g. the controllers were reassigned slots in the Steam UI.
This commit is contained in:
Sam Lantinga
2023-12-09 23:05:34 -08:00
parent a8f4f40d08
commit c981a597dc
42 changed files with 779 additions and 40 deletions
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21
src/joystick/darwin/SDL_iokitjoystick.c
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@@ -405,6 +405,19 @@ static void AddHIDElement(const void *value, void *parameter)
}
}
static int GetSteamVirtualGamepadSlot(Uint16 vendor_id, Uint16 product_id, const char *product_string)
{
int slot = -1;
if (vendor_id == USB_VENDOR_MICROSOFT && product_id == USB_PRODUCT_XBOX360_WIRED_CONTROLLER) {
/* Gamepad name is "GamePad-N", where N is slot + 1 */
if (SDL_sscanf(product_string, "GamePad-%d", &slot) == 1) {
slot -= 1;
}
}
return slot;
}
static SDL_bool GetDeviceInfo(IOHIDDeviceRef hidDevice, recDevice *pDevice)
{
Sint32 vendor = 0;
@@ -485,6 +498,7 @@ static SDL_bool GetDeviceInfo(IOHIDDeviceRef hidDevice, recDevice *pDevice)
#endif
pDevice->guid = SDL_CreateJoystickGUID(SDL_HARDWARE_BUS_USB, (Uint16)vendor, (Uint16)product, (Uint16)version, pDevice->product, 0, 0);
pDevice->steam_virtual_gamepad_slot = GetSteamVirtualGamepadSlot((Uint16)vendor, (Uint16)product, product_string);
array = IOHIDDeviceCopyMatchingElements(hidDevice, NULL, kIOHIDOptionsTypeNone);
if (array) {
@@ -711,6 +725,12 @@ const char *DARWIN_JoystickGetDevicePath(int device_index)
return NULL;
}
static int DARWIN_JoystickGetDeviceSteamVirtualGamepadSlot(int device_index)
{
recDevice *device = GetDeviceForIndex(device_index);
return device ? device->steam_virtual_gamepad_slot : -1;
}
static int DARWIN_JoystickGetDevicePlayerIndex(int device_index)
{
return -1;
@@ -1056,6 +1076,7 @@ SDL_JoystickDriver SDL_DARWIN_JoystickDriver = {
DARWIN_JoystickDetect,
DARWIN_JoystickGetDeviceName,
DARWIN_JoystickGetDevicePath,
DARWIN_JoystickGetDeviceSteamVirtualGamepadSlot,
DARWIN_JoystickGetDevicePlayerIndex,
DARWIN_JoystickSetDevicePlayerIndex,
DARWIN_JoystickGetDeviceGUID,