kc3-lang/SDL/src/joystick/windows/SDL_xinputjoystick.c

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• Hash : d0bbfdbf
  Author :
  Date : 2022-12-01T16:07:03
  

  Clang-Tidy fixes (#6725) (cherry picked from commit 3c501b963dd8f0605a6ce7978882df39ba76f9cd)

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• src/joystick/windows/SDL_xinputjoystick.c

• /*
    Simple DirectMedia Layer
    Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
  
    This software is provided 'as-is', without any express or implied
    warranty.  In no event will the authors be held liable for any damages
    arising from the use of this software.
  
    Permission is granted to anyone to use this software for any purpose,
    including commercial applications, and to alter it and redistribute it
    freely, subject to the following restrictions:
  
    1. The origin of this software must not be misrepresented; you must not
       claim that you wrote the original software. If you use this software
       in a product, an acknowledgment in the product documentation would be
       appreciated but is not required.
    2. Altered source versions must be plainly marked as such, and must not be
       misrepresented as being the original software.
    3. This notice may not be removed or altered from any source distribution.
  */
  #include "../../SDL_internal.h"
  
  #include "../SDL_sysjoystick.h"
  
  #if SDL_JOYSTICK_XINPUT
  
  #include "SDL_hints.h"
  #include "SDL_timer.h"
  #include "SDL_windowsjoystick_c.h"
  #include "SDL_xinputjoystick_c.h"
  #include "SDL_rawinputjoystick_c.h"
  #include "../hidapi/SDL_hidapijoystick_c.h"
  
  /* Set up for C function definitions, even when using C++ */
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /*
   * Internal stuff.
   */
  static SDL_bool s_bXInputEnabled = SDL_TRUE;
  static char *s_arrXInputDevicePath[XUSER_MAX_COUNT];
  
  static SDL_bool SDL_XInputUseOldJoystickMapping()
  {
  #ifdef __WINRT__
      /* TODO: remove this __WINRT__ block, but only after integrating with UWP/WinRT's HID API */
      /* FIXME: Why are Win8/10 different here? -flibit */
      return NTDDI_VERSION < NTDDI_WIN10;
  #elif defined(__XBOXONE__) || defined(__XBOXSERIES__)
      return SDL_FALSE;
  #else
      static int s_XInputUseOldJoystickMapping = -1;
      if (s_XInputUseOldJoystickMapping < 0) {
          s_XInputUseOldJoystickMapping = SDL_GetHintBoolean(SDL_HINT_XINPUT_USE_OLD_JOYSTICK_MAPPING, SDL_FALSE);
      }
      return s_XInputUseOldJoystickMapping > 0;
  #endif
  }
  
  SDL_bool SDL_XINPUT_Enabled(void)
  {
      return s_bXInputEnabled;
  }
  
  int SDL_XINPUT_JoystickInit(void)
  {
      s_bXInputEnabled = SDL_GetHintBoolean(SDL_HINT_XINPUT_ENABLED, SDL_TRUE);
  
  #ifdef SDL_JOYSTICK_RAWINPUT
      if (RAWINPUT_IsEnabled()) {
          /* The raw input driver handles more than 4 controllers, so prefer that when available */
          s_bXInputEnabled = SDL_FALSE;
      }
  #endif
  
      if (s_bXInputEnabled && WIN_LoadXInputDLL() < 0) {
          s_bXInputEnabled = SDL_FALSE; /* oh well. */
      }
      return 0;
  }
  
  static const char *GetXInputName(const Uint8 userid, BYTE SubType)
  {
      static char name[32];
  
      if (SDL_XInputUseOldJoystickMapping()) {
          (void)SDL_snprintf(name, sizeof name, "X360 Controller #%u", 1 + userid);
      } else {
          switch (SubType) {
          case XINPUT_DEVSUBTYPE_GAMEPAD:
              (void)SDL_snprintf(name, sizeof name, "XInput Controller #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_WHEEL:
              (void)SDL_snprintf(name, sizeof name, "XInput Wheel #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_ARCADE_STICK:
              (void)SDL_snprintf(name, sizeof name, "XInput ArcadeStick #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_FLIGHT_STICK:
              (void)SDL_snprintf(name, sizeof name, "XInput FlightStick #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_DANCE_PAD:
              (void)SDL_snprintf(name, sizeof name, "XInput DancePad #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_GUITAR:
          case XINPUT_DEVSUBTYPE_GUITAR_ALTERNATE:
          case XINPUT_DEVSUBTYPE_GUITAR_BASS:
              (void)SDL_snprintf(name, sizeof name, "XInput Guitar #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_DRUM_KIT:
              (void)SDL_snprintf(name, sizeof name, "XInput DrumKit #%u", 1 + userid);
              break;
          case XINPUT_DEVSUBTYPE_ARCADE_PAD:
              (void)SDL_snprintf(name, sizeof name, "XInput ArcadePad #%u", 1 + userid);
              break;
          default:
              (void)SDL_snprintf(name, sizeof name, "XInput Device #%u", 1 + userid);
              break;
          }
      }
      return name;
  }
  
  /* We can't really tell what device is being used for XInput, but we can guess
     and we'll be correct for the case where only one device is connected.
   */
  static void GuessXInputDevice(Uint8 userid, Uint16 *pVID, Uint16 *pPID, Uint16 *pVersion)
  {
  #if !defined(__WINRT__) && !defined(__XBOXONE__) && !defined(__XBOXSERIES__) /* TODO: remove this ifndef __WINRT__ block, but only after integrating with UWP/WinRT's HID API */
      PRAWINPUTDEVICELIST devices = NULL;
      UINT i, j, device_count = 0;
  
      if ((GetRawInputDeviceList(NULL, &device_count, sizeof(RAWINPUTDEVICELIST)) == -1) || (!device_count)) {
          return; /* oh well. */
      }
  
      devices = (PRAWINPUTDEVICELIST)SDL_malloc(sizeof(RAWINPUTDEVICELIST) * device_count);
      if (devices == NULL) {
          return;
      }
  
      if (GetRawInputDeviceList(devices, &device_count, sizeof(RAWINPUTDEVICELIST)) == -1) {
          SDL_free(devices);
          return; /* oh well. */
      }
  
      /* First see if we have a cached entry for this index */
      if (s_arrXInputDevicePath[userid]) {
          for (i = 0; i < device_count; i++) {
              RID_DEVICE_INFO rdi;
              char devName[128];
              UINT rdiSize = sizeof(rdi);
              UINT nameSize = SDL_arraysize(devName);
  
              rdi.cbSize = sizeof(rdi);
              if (devices[i].dwType == RIM_TYPEHID &&
                  GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICEINFO, &rdi, &rdiSize) != (UINT)-1 &&
                  GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICENAME, devName, &nameSize) != (UINT)-1) {
                  if (SDL_strcmp(devName, s_arrXInputDevicePath[userid]) == 0) {
                      *pVID = (Uint16)rdi.hid.dwVendorId;
                      *pPID = (Uint16)rdi.hid.dwProductId;
                      *pVersion = (Uint16)rdi.hid.dwVersionNumber;
                      SDL_free(devices);
                      return;
                  }
              }
          }
      }
  
      for (i = 0; i < device_count; i++) {
          RID_DEVICE_INFO rdi;
          char devName[MAX_PATH];
          UINT rdiSize = sizeof(rdi);
          UINT nameSize = SDL_arraysize(devName);
  
          rdi.cbSize = sizeof(rdi);
          if (devices[i].dwType == RIM_TYPEHID &&
              GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICEINFO, &rdi, &rdiSize) != (UINT)-1 &&
              GetRawInputDeviceInfoA(devices[i].hDevice, RIDI_DEVICENAME, devName, &nameSize) != (UINT)-1) {
  #ifdef DEBUG_JOYSTICK
              SDL_Log("Raw input device: VID = 0x%x, PID = 0x%x, %s\n", rdi.hid.dwVendorId, rdi.hid.dwProductId, devName);
  #endif
              if (SDL_strstr(devName, "IG_") != NULL) {
                  SDL_bool found = SDL_FALSE;
                  for (j = 0; j < SDL_arraysize(s_arrXInputDevicePath); ++j) {
                      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.
                   */
                  if (rdi.hid.dwVendorId == USB_VENDOR_VALVE &&
                      rdi.hid.dwProductId == USB_PRODUCT_STEAM_VIRTUAL_GAMEPAD) {
                      /* Steam encodes the real device in the path */
                      int realVID = rdi.hid.dwVendorId;
                      int realPID = rdi.hid.dwProductId;
                      (void)SDL_sscanf(devName, "\\\\.\\pipe\\HID#VID_045E&PID_028E&IG_00#%x&%x&", &realVID, &realPID);
                      *pVID = (Uint16)realVID;
                      *pPID = (Uint16)realPID;
                      *pVersion = 0;
                  } else {
                      *pVID = (Uint16)rdi.hid.dwVendorId;
                      *pPID = (Uint16)rdi.hid.dwProductId;
                      *pVersion = (Uint16)rdi.hid.dwVersionNumber;
                  }
                  if (s_arrXInputDevicePath[userid]) {
                      SDL_free(s_arrXInputDevicePath[userid]);
                  }
                  s_arrXInputDevicePath[userid] = SDL_strdup(devName);
                  SDL_free(devices);
                  return;
              }
          }
      }
      SDL_free(devices);
  #endif /* !__WINRT__ */
  
      /* The device wasn't in the raw HID device list, it's probably Bluetooth */
      *pVID = 0x045e; /* Microsoft */
      *pPID = 0x02fd; /* XBox One S Bluetooth */
      *pVersion = 0;
  }
  
  static void AddXInputDevice(Uint8 userid, BYTE SubType, JoyStick_DeviceData **pContext)
  {
      Uint16 vendor = 0;
      Uint16 product = 0;
      Uint16 version = 0;
      JoyStick_DeviceData *pPrevJoystick = NULL;
      JoyStick_DeviceData *pNewJoystick = *pContext;
  
      if (SDL_XInputUseOldJoystickMapping() && SubType != XINPUT_DEVSUBTYPE_GAMEPAD) {
          return;
      }
  
      if (SubType == XINPUT_DEVSUBTYPE_UNKNOWN) {
          return;
      }
  
      while (pNewJoystick) {
          if (pNewJoystick->bXInputDevice && (pNewJoystick->XInputUserId == userid) && (pNewJoystick->SubType == SubType)) {
              /* if we are replacing the front of the list then update it */
              if (pNewJoystick == *pContext) {
                  *pContext = pNewJoystick->pNext;
              } else if (pPrevJoystick) {
                  pPrevJoystick->pNext = pNewJoystick->pNext;
              }
  
              pNewJoystick->pNext = SYS_Joystick;
              SYS_Joystick = pNewJoystick;
              return; /* already in the list. */
          }
  
          pPrevJoystick = pNewJoystick;
          pNewJoystick = pNewJoystick->pNext;
      }
  
      pNewJoystick = (JoyStick_DeviceData *)SDL_calloc(1, sizeof(JoyStick_DeviceData));
      if (pNewJoystick == NULL) {
          return; /* better luck next time? */
      }
  
      pNewJoystick->bXInputDevice = SDL_TRUE;
      pNewJoystick->joystickname = SDL_CreateJoystickName(vendor, product, NULL, GetXInputName(userid, SubType));
      if (!pNewJoystick->joystickname) {
          SDL_free(pNewJoystick);
          return; /* better luck next time? */
      }
      (void)SDL_snprintf(pNewJoystick->path, sizeof pNewJoystick->path, "XInput#%d", userid);
      if (!SDL_XInputUseOldJoystickMapping()) {
          GuessXInputDevice(userid, &vendor, &product, &version);
  
          pNewJoystick->guid = SDL_CreateJoystickGUID(SDL_HARDWARE_BUS_USB, vendor, product, version, pNewJoystick->joystickname, 'x', SubType);
      }
      pNewJoystick->SubType = SubType;
      pNewJoystick->XInputUserId = userid;
  
      if (SDL_ShouldIgnoreJoystick(pNewJoystick->joystickname, pNewJoystick->guid)) {
          SDL_free(pNewJoystick);
          return;
      }
  
  #ifdef SDL_JOYSTICK_HIDAPI
      /* Since we're guessing about the VID/PID, use a hard-coded VID/PID to represent XInput */
      if (HIDAPI_IsDevicePresent(USB_VENDOR_MICROSOFT, USB_PRODUCT_XBOX_ONE_XINPUT_CONTROLLER, version, pNewJoystick->joystickname)) {
          /* The HIDAPI driver is taking care of this device */
          SDL_free(pNewJoystick);
          return;
      }
  #endif
  
  #ifdef SDL_JOYSTICK_RAWINPUT
      if (RAWINPUT_IsDevicePresent(vendor, product, version, pNewJoystick->joystickname)) {
          /* The RAWINPUT driver is taking care of this device */
          SDL_free(pNewJoystick);
          return;
      }
  #endif
  
      WINDOWS_AddJoystickDevice(pNewJoystick);
  }
  
  static void DelXInputDevice(Uint8 userid)
  {
      if (s_arrXInputDevicePath[userid]) {
          SDL_free(s_arrXInputDevicePath[userid]);
          s_arrXInputDevicePath[userid] = NULL;
      }
  }
  
  void SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext)
  {
      int iuserid;
  
      if (!s_bXInputEnabled) {
          return;
      }
  
      /* iterate in reverse, so these are in the final list in ascending numeric order. */
      for (iuserid = XUSER_MAX_COUNT - 1; iuserid >= 0; iuserid--) {
          const Uint8 userid = (Uint8)iuserid;
          XINPUT_CAPABILITIES capabilities;
          if (XINPUTGETCAPABILITIES(userid, XINPUT_FLAG_GAMEPAD, &capabilities) == ERROR_SUCCESS) {
              /* Adding a new device, must handle all removes first, or GuessXInputDevice goes terribly wrong (returns
                a product/vendor ID that is not even attached to the system) when we get a remove and add on the same tick
                (e.g. when disconnecting a device and the OS reassigns which userid an already-attached controller is)
              */
              int iuserid2;
              for (iuserid2 = iuserid - 1; iuserid2 >= 0; iuserid2--) {
                  const Uint8 userid2 = (Uint8)iuserid2;
                  XINPUT_CAPABILITIES capabilities2;
                  if (XINPUTGETCAPABILITIES(userid2, XINPUT_FLAG_GAMEPAD, &capabilities2) != ERROR_SUCCESS) {
                      DelXInputDevice(userid2);
                  }
              }
              AddXInputDevice(userid, capabilities.SubType, pContext);
          } else {
              DelXInputDevice(userid);
          }
      }
  }
  
  int SDL_XINPUT_JoystickOpen(SDL_Joystick *joystick, JoyStick_DeviceData *joystickdevice)
  {
      const Uint8 userId = joystickdevice->XInputUserId;
      XINPUT_CAPABILITIES capabilities;
      XINPUT_VIBRATION state;
  
      SDL_assert(s_bXInputEnabled);
      SDL_assert(XINPUTGETCAPABILITIES);
      SDL_assert(XINPUTSETSTATE);
      SDL_assert(userId < XUSER_MAX_COUNT);
  
      joystick->hwdata->bXInputDevice = SDL_TRUE;
  
      if (XINPUTGETCAPABILITIES(userId, XINPUT_FLAG_GAMEPAD, &capabilities) != ERROR_SUCCESS) {
          SDL_free(joystick->hwdata);
          joystick->hwdata = NULL;
          return SDL_SetError("Failed to obtain XInput device capabilities. Device disconnected?");
      }
      SDL_zero(state);
      joystick->hwdata->bXInputHaptic = (XINPUTSETSTATE(userId, &state) == ERROR_SUCCESS) ? SDL_TRUE : SDL_FALSE;
      joystick->hwdata->userid = userId;
  
      /* The XInput API has a hard coded button/axis mapping, so we just match it */
      if (SDL_XInputUseOldJoystickMapping()) {
          joystick->naxes = 6;
          joystick->nbuttons = 15;
      } else {
          joystick->naxes = 6;
          joystick->nbuttons = 11;
          joystick->nhats = 1;
      }
      return 0;
  }
  
  static void UpdateXInputJoystickBatteryInformation(SDL_Joystick *joystick, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation)
  {
      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) {
              case BATTERY_LEVEL_EMPTY:
                  ePowerLevel = SDL_JOYSTICK_POWER_EMPTY;
                  break;
              case BATTERY_LEVEL_LOW:
                  ePowerLevel = SDL_JOYSTICK_POWER_LOW;
                  break;
              case BATTERY_LEVEL_MEDIUM:
                  ePowerLevel = SDL_JOYSTICK_POWER_MEDIUM;
                  break;
              default:
              case BATTERY_LEVEL_FULL:
                  ePowerLevel = SDL_JOYSTICK_POWER_FULL;
                  break;
              }
          }
  
          SDL_PrivateJoystickBatteryLevel(joystick, ePowerLevel);
      }
  }
  
  static void UpdateXInputJoystickState_OLD(SDL_Joystick *joystick, XINPUT_STATE_EX *pXInputState, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation)
  {
      static WORD s_XInputButtons[] = {
          XINPUT_GAMEPAD_DPAD_UP, XINPUT_GAMEPAD_DPAD_DOWN, XINPUT_GAMEPAD_DPAD_LEFT, XINPUT_GAMEPAD_DPAD_RIGHT,
          XINPUT_GAMEPAD_START, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB,
          XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER,
          XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y,
          XINPUT_GAMEPAD_GUIDE
      };
      WORD wButtons = pXInputState->Gamepad.wButtons;
      Uint8 button;
  
      SDL_PrivateJoystickAxis(joystick, 0, (Sint16)pXInputState->Gamepad.sThumbLX);
      SDL_PrivateJoystickAxis(joystick, 1, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbLY)));
      SDL_PrivateJoystickAxis(joystick, 2, (Sint16)pXInputState->Gamepad.sThumbRX);
      SDL_PrivateJoystickAxis(joystick, 3, (Sint16)(-SDL_max(-32767, pXInputState->Gamepad.sThumbRY)));
      SDL_PrivateJoystickAxis(joystick, 4, (Sint16)(((int)pXInputState->Gamepad.bLeftTrigger * 65535 / 255) - 32768));
      SDL_PrivateJoystickAxis(joystick, 5, (Sint16)(((int)pXInputState->Gamepad.bRightTrigger * 65535 / 255) - 32768));
  
      for (button = 0; button < (Uint8)SDL_arraysize(s_XInputButtons); ++button) {
          SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED);
      }
  
      UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation);
  }
  
  static void UpdateXInputJoystickState(SDL_Joystick *joystick, XINPUT_STATE_EX *pXInputState, XINPUT_BATTERY_INFORMATION_EX *pBatteryInformation)
  {
      static WORD s_XInputButtons[] = {
          XINPUT_GAMEPAD_A, XINPUT_GAMEPAD_B, XINPUT_GAMEPAD_X, XINPUT_GAMEPAD_Y,
          XINPUT_GAMEPAD_LEFT_SHOULDER, XINPUT_GAMEPAD_RIGHT_SHOULDER, XINPUT_GAMEPAD_BACK, XINPUT_GAMEPAD_START,
          XINPUT_GAMEPAD_LEFT_THUMB, XINPUT_GAMEPAD_RIGHT_THUMB,
          XINPUT_GAMEPAD_GUIDE
      };
      WORD wButtons = pXInputState->Gamepad.wButtons;
      Uint8 button;
      Uint8 hat = SDL_HAT_CENTERED;
  
      SDL_PrivateJoystickAxis(joystick, 0, pXInputState->Gamepad.sThumbLX);
      SDL_PrivateJoystickAxis(joystick, 1, ~pXInputState->Gamepad.sThumbLY);
      SDL_PrivateJoystickAxis(joystick, 2, ((int)pXInputState->Gamepad.bLeftTrigger * 257) - 32768);
      SDL_PrivateJoystickAxis(joystick, 3, pXInputState->Gamepad.sThumbRX);
      SDL_PrivateJoystickAxis(joystick, 4, ~pXInputState->Gamepad.sThumbRY);
      SDL_PrivateJoystickAxis(joystick, 5, ((int)pXInputState->Gamepad.bRightTrigger * 257) - 32768);
  
      for (button = 0; button < (Uint8)SDL_arraysize(s_XInputButtons); ++button) {
          SDL_PrivateJoystickButton(joystick, button, (wButtons & s_XInputButtons[button]) ? SDL_PRESSED : SDL_RELEASED);
      }
  
      if (wButtons & XINPUT_GAMEPAD_DPAD_UP) {
          hat |= SDL_HAT_UP;
      }
      if (wButtons & XINPUT_GAMEPAD_DPAD_DOWN) {
          hat |= SDL_HAT_DOWN;
      }
      if (wButtons & XINPUT_GAMEPAD_DPAD_LEFT) {
          hat |= SDL_HAT_LEFT;
      }
      if (wButtons & XINPUT_GAMEPAD_DPAD_RIGHT) {
          hat |= SDL_HAT_RIGHT;
      }
      SDL_PrivateJoystickHat(joystick, 0, hat);
  
      UpdateXInputJoystickBatteryInformation(joystick, pBatteryInformation);
  }
  
  int SDL_XINPUT_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
  {
      XINPUT_VIBRATION XVibration;
  
      if (!XINPUTSETSTATE) {
          return SDL_Unsupported();
      }
  
      XVibration.wLeftMotorSpeed = low_frequency_rumble;
      XVibration.wRightMotorSpeed = high_frequency_rumble;
      if (XINPUTSETSTATE(joystick->hwdata->userid, &XVibration) != ERROR_SUCCESS) {
          return SDL_SetError("XInputSetState() failed");
      }
      return 0;
  }
  
  Uint32
  SDL_XINPUT_JoystickGetCapabilities(SDL_Joystick *joystick)
  {
      return SDL_JOYCAP_RUMBLE;
  }
  
  void SDL_XINPUT_JoystickUpdate(SDL_Joystick *joystick)
  {
      HRESULT result;
      XINPUT_STATE_EX XInputState;
      XINPUT_BATTERY_INFORMATION_EX XBatteryInformation;
  
      if (!XINPUTGETSTATE) {
          return;
      }
  
      result = XINPUTGETSTATE(joystick->hwdata->userid, &XInputState);
      if (result == ERROR_DEVICE_NOT_CONNECTED) {
          return;
      }
  
      SDL_zero(XBatteryInformation);
      if (XINPUTGETBATTERYINFORMATION) {
          result = XINPUTGETBATTERYINFORMATION(joystick->hwdata->userid, BATTERY_DEVTYPE_GAMEPAD, &XBatteryInformation);
      }
  
  #if defined(__XBOXONE__) || defined(__XBOXSERIES__)
      /* XInputOnGameInput doesn't ever change dwPacketNumber, so have to just update every frame */
      UpdateXInputJoystickState(joystick, &XInputState, &XBatteryInformation);
  #else
      /* only fire events if the data changed from last time */
      if (XInputState.dwPacketNumber && XInputState.dwPacketNumber != joystick->hwdata->dwPacketNumber) {
          if (SDL_XInputUseOldJoystickMapping()) {
              UpdateXInputJoystickState_OLD(joystick, &XInputState, &XBatteryInformation);
          } else {
              UpdateXInputJoystickState(joystick, &XInputState, &XBatteryInformation);
          }
          joystick->hwdata->dwPacketNumber = XInputState.dwPacketNumber;
      }
  #endif
  }
  
  void SDL_XINPUT_JoystickClose(SDL_Joystick *joystick)
  {
  }
  
  void SDL_XINPUT_JoystickQuit(void)
  {
      if (s_bXInputEnabled) {
          WIN_UnloadXInputDLL();
      }
  }
  
  /* Ends C function definitions when using C++ */
  #ifdef __cplusplus
  }
  #endif
  
  #else /* !SDL_JOYSTICK_XINPUT */
  
  typedef struct JoyStick_DeviceData JoyStick_DeviceData;
  
  SDL_bool SDL_XINPUT_Enabled(void)
  {
      return SDL_FALSE;
  }
  
  int SDL_XINPUT_JoystickInit(void)
  {
      return 0;
  }
  
  void SDL_XINPUT_JoystickDetect(JoyStick_DeviceData **pContext)
  {
  }
  
  int SDL_XINPUT_JoystickOpen(SDL_Joystick *joystick, JoyStick_DeviceData *joystickdevice)
  {
      return SDL_Unsupported();
  }
  
  int SDL_XINPUT_JoystickRumble(SDL_Joystick *joystick, Uint16 low_frequency_rumble, Uint16 high_frequency_rumble)
  {
      return SDL_Unsupported();
  }
  
  Uint32
  SDL_XINPUT_JoystickGetCapabilities(SDL_Joystick *joystick)
  {
      return 0;
  }
  
  void SDL_XINPUT_JoystickUpdate(SDL_Joystick *joystick)
  {
  }
  
  void SDL_XINPUT_JoystickClose(SDL_Joystick *joystick)
  {
  }
  
  void SDL_XINPUT_JoystickQuit(void)
  {
  }
  
  #endif /* SDL_JOYSTICK_XINPUT */
  
  /* vi: set ts=4 sw=4 expandtab: */
  

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