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Remember XInput controllers that we've already seen, so when the raw device list changes we don't assign the old device to the new XInput userid.

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This isn't perfect, but at least we won't report the same device twice.
This commit is contained in:
Sam Lantinga 2017-02-02 17:33:40 -08:00
parent da30992d47
commit 710ae62a79
1 changed files with 43 additions and 19 deletions
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62
src/joystick/windows/SDL_xinputjoystick.c
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@ -33,6 +33,7 @@
* Internal stuff.
*/
static SDL_bool s_bXInputEnabled = SDL_TRUE;
static char *s_arrXInputDevicePath[XUSER_MAX_COUNT];
static SDL_bool
@ -113,12 +114,12 @@ GetXInputName(const Uint8 userid, BYTE SubType)
and we'll be correct for the case where only one device is connected.
*/
static void
GuessXInputDevice(UINT device_index, Uint16 *pVID, Uint16 *pPID, Uint16 *pVersion)
GuessXInputDevice(Uint8 userid, Uint16 *pVID, Uint16 *pPID, Uint16 *pVersion)
{
#ifndef __WINRT__ /* TODO: remove this ifndef __WINRT__ block, but only after integrating with UWP/WinRT's HID API */
PRAWINPUTDEVICELIST devices = NULL;
UINT i, found_count = 0, device_count = 0;
UINT i, j, found_count = 0, device_count = 0;
if ((GetRawInputDeviceList(NULL, &device_count, sizeof(RAWINPUTDEVICELIST)) == -1) || (!device_count)) {
return; /* oh well. */
@ -145,16 +146,36 @@ GuessXInputDevice(UINT device_index, Uint16 *pVID, Uint16 *pPID, Uint16 *pVersio
(GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICEINFO, &rdi, &rdiSize) != ((UINT)-1)) &&
(GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICENAME, devName, &nameSize) != ((UINT)-1)) &&
(SDL_strstr(devName, "IG_") != NULL)) {
SDL_bool found = SDL_FALSE;
for (j = 0; j < SDL_arraysize(s_arrXInputDevicePath); ++j) {
if (j == userid) {
continue;
}
if (!s_arrXInputDevicePath[j]) {
continue;
}
if (SDL_strcmp(devName, s_arrXInputDevicePath[j]) == 0) {
found = SDL_TRUE;
break;
}
}
if (found) {
/* We already have this device in our XInput device list */
continue;
}
/* We don't actually know if this is the right device for this
* userid, but we'll record it so we'll at least be consistent
* when the raw device list changes.
*/
*pVID = (Uint16)rdi.hid.dwVendorId;
*pPID = (Uint16)rdi.hid.dwProductId;
*pVersion = (Uint16)rdi.hid.dwVersionNumber;
if (found_count++ == device_index) {
/* We don't really know the order of the devices relative to XInput,
but we'll guess that this is the correct one
*/
break;
if (s_arrXInputDevicePath[userid]) {
SDL_free(s_arrXInputDevicePath[userid]);
}
s_arrXInputDevicePath[userid] = SDL_strdup(devName);
break;
}
}
SDL_free(devices);
@ -290,14 +311,12 @@ SDL_XINPUT_JoystickOpen(SDL_Joystick * joystick, JoyStick_DeviceData *joystickde
static void
UpdateXInputJoystickBatteryInformation(SDL_Joystick * joystick, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation)
{
if ( pBatteryInformation->BatteryType != BATTERY_TYPE_UNKNOWN )
{
if (pBatteryInformation->BatteryType != BATTERY_TYPE_UNKNOWN) {
SDL_JoystickPowerLevel ePowerLevel = SDL_JOYSTICK_POWER_UNKNOWN;
if (pBatteryInformation->BatteryType == BATTERY_TYPE_WIRED) {
ePowerLevel = SDL_JOYSTICK_POWER_WIRED;
} else {
switch ( pBatteryInformation->BatteryLevel )
{
switch (pBatteryInformation->BatteryLevel) {
case BATTERY_LEVEL_EMPTY:
ePowerLevel = SDL_JOYSTICK_POWER_EMPTY;
break;
@ -314,7 +333,7 @@ UpdateXInputJoystickBatteryInformation(SDL_Joystick * joystick, XINPUT_BATTERY_I
}
}
SDL_PrivateJoystickBatteryLevel( joystick, ePowerLevel );
SDL_PrivateJoystickBatteryLevel(joystick, ePowerLevel);
}
}
@ -342,7 +361,7 @@ UpdateXInputJoystickState_OLD(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputS
SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED);
}
UpdateXInputJoystickBatteryInformation( joystick, pBatteryInformation );
UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation);
}
static void
@ -383,7 +402,7 @@ UpdateXInputJoystickState(SDL_Joystick * joystick, XINPUT_STATE_EX *pXInputState
}
SDL_PrivateJoystickHat(joystick, 0, hat);
UpdateXInputJoystickBatteryInformation( joystick, pBatteryInformation );
UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation);
}
void
@ -398,15 +417,20 @@ SDL_XINPUT_JoystickUpdate(SDL_Joystick * joystick)
result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState);
if (result == ERROR_DEVICE_NOT_CONNECTED) {
Uint8 userid = joystick->hwdata->userid;
joystick->hwdata->send_remove_event = SDL_TRUE;
joystick->hwdata->removed = SDL_TRUE;
if (s_arrXInputDevicePath[userid]) {
SDL_free(s_arrXInputDevicePath[userid]);
s_arrXInputDevicePath[userid] = NULL;
}
return;
}
SDL_zero( XBatteryInformation );
if ( XINPUTGETBATTERYINFORMATION )
{
result = XINPUTGETBATTERYINFORMATION( joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation );
SDL_zero(XBatteryInformation);
if (XINPUTGETBATTERYINFORMATION) {
result = XINPUTGETBATTERYINFORMATION(joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation);
}
/* only fire events if the data changed from last time */