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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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36
src/joystick/windows/SDL_windows_gaming_input.c
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@@ -58,6 +58,7 @@ typedef struct WindowsGamingInputControllerState
char *name;
SDL_JoystickGUID guid;
SDL_JoystickType type;
int steam_virtual_gamepad_slot;
} WindowsGamingInputControllerState;
typedef HRESULT(WINAPI *CoIncrementMTAUsage_t)(PVOID *pCookie);
@@ -356,6 +357,34 @@ static ULONG STDMETHODCALLTYPE IEventHandler_CRawGameControllerVtbl_Release(__FI
return rc;
}
static int GetSteamVirtualGamepadSlot(__x_ABI_CWindows_CGaming_CInput_CIRawGameController *controller, Uint16 vendor_id, Uint16 product_id)
{
int slot = -1;
if (vendor_id == USB_VENDOR_VALVE &&
product_id == USB_PRODUCT_STEAM_VIRTUAL_GAMEPAD) {
__x_ABI_CWindows_CGaming_CInput_CIRawGameController2 *controller2 = NULL;
HRESULT hr = __x_ABI_CWindows_CGaming_CInput_CIRawGameController_QueryInterface(controller, &IID___x_ABI_CWindows_CGaming_CInput_CIRawGameController2, (void **)&controller2);
if (SUCCEEDED(hr)) {
HSTRING hString;
hr = __x_ABI_CWindows_CGaming_CInput_CIRawGameController2_get_NonRoamableId(controller2, &hString);
if (SUCCEEDED(hr)) {
PCWSTR string = wgi.WindowsGetStringRawBuffer(hString, NULL);
if (string) {
char *id = WIN_StringToUTF8W(string);
if (id) {
(void)SDL_sscanf(id, "{wgi/nrid/:steam-%*X&%*X&%*X#%d#%*u}", &slot);
SDL_free(id);
}
}
wgi.WindowsDeleteString(hString);
}
__x_ABI_CWindows_CGaming_CInput_CIRawGameController2_Release(controller2);
}
}
return slot;
}
static HRESULT STDMETHODCALLTYPE IEventHandler_CRawGameControllerVtbl_InvokeAdded(__FIEventHandler_1_Windows__CGaming__CInput__CRawGameController *This, IInspectable *sender, __x_ABI_CWindows_CGaming_CInput_CIRawGameController *e)
{
HRESULT hr;
@@ -464,6 +493,7 @@ static HRESULT STDMETHODCALLTYPE IEventHandler_CRawGameControllerVtbl_InvokeAdde
state->name = name;
state->guid = guid;
state->type = type;
state->steam_virtual_gamepad_slot = GetSteamVirtualGamepadSlot(controller, vendor, product);
__x_ABI_CWindows_CGaming_CInput_CIRawGameController_AddRef(controller);
@@ -664,6 +694,11 @@ static const char *WGI_JoystickGetDevicePath(int device_index)
return NULL;
}
static int WGI_JoystickGetDeviceSteamVirtualGamepadSlot(int device_index)
{
return wgi.controllers[device_index].steam_virtual_gamepad_slot;
}
static int WGI_JoystickGetDevicePlayerIndex(int device_index)
{
return -1;
@@ -983,6 +1018,7 @@ SDL_JoystickDriver SDL_WGI_JoystickDriver = {
WGI_JoystickDetect,
WGI_JoystickGetDeviceName,
WGI_JoystickGetDevicePath,
WGI_JoystickGetDeviceSteamVirtualGamepadSlot,
WGI_JoystickGetDevicePlayerIndex,
WGI_JoystickSetDevicePlayerIndex,
WGI_JoystickGetDeviceGUID,