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joystick_linux.c

/*          DirectInput Joystick device
 *
 * Copyright 1998 Marcus Meissner
 * Copyright 1998,1999 Lionel Ulmer
 * Copyright 2000-2001 TransGaming Technologies Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

/*
 * To Do:
 *    dead zone
 *    force feedback
 */

#include "config.h"
#include "wine/port.h"

#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#include <fcntl.h>
#ifdef HAVE_SYS_IOCTL_H
# include <sys/ioctl.h>
#endif
#include <errno.h>
#ifdef HAVE_SYS_ERRNO_H
# include <sys/errno.h>
#endif
#ifdef HAVE_LINUX_IOCTL_H
# include <linux/ioctl.h>
#endif
#ifdef HAVE_LINUX_JOYSTICK_H
# include <linux/joystick.h>
# undef SW_MAX
#endif
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#endif

#include "wine/debug.h"
#include "wine/unicode.h"
#include "windef.h"
#include "winbase.h"
#include "winerror.h"
#include "dinput.h"

#include "dinput_private.h"
#include "device_private.h"
#include "joystick_private.h"

WINE_DEFAULT_DEBUG_CHANNEL(dinput);

#ifdef HAVE_LINUX_22_JOYSTICK_API

#define JOYDEV_NEW "/dev/input/js"
#define JOYDEV_OLD "/dev/js"

struct JoyDev
{
    char device[MAX_PATH];
    char name[MAX_PATH];

    BYTE dev_axes_map[ABS_MAX + 1];
    int  have_axes_map;
};

typedef struct JoystickImpl JoystickImpl;
static const IDirectInputDevice8AVtbl JoystickAvt;
static const IDirectInputDevice8WVtbl JoystickWvt;
struct JoystickImpl
{
        struct JoystickGenericImpl generic;

        struct JoyDev                  *joydev;

      /* joystick private */
      int                     joyfd;
        POINTL                          povs[4];
};

static const GUID DInput_Wine_Joystick_GUID = { /* 9e573ed9-7734-11d2-8d4a-23903fb6bdf7 */
  0x9e573ed9,
  0x7734,
  0x11d2,
  {0x8d, 0x4a, 0x23, 0x90, 0x3f, 0xb6, 0xbd, 0xf7}
};

#define MAX_JOYSTICKS 64
static INT joystick_devices_count = -1;
static struct JoyDev *joystick_devices;

static void joy_polldev(JoystickGenericImpl *This);

static INT find_joystick_devices(void)
{
    INT i;

    if (joystick_devices_count != -1) return joystick_devices_count;

    joystick_devices_count = 0;
    for (i = 0; i < MAX_JOYSTICKS; i++)
    {
        int fd;
        struct JoyDev joydev, *new_joydevs;

        snprintf(joydev.device, sizeof(joydev.device), "%s%d", JOYDEV_NEW, i);
        if ((fd = open(joydev.device, O_RDONLY)) < 0)
        {
            snprintf(joydev.device, sizeof(joydev.device), "%s%d", JOYDEV_OLD, i);
            if ((fd = open(joydev.device, O_RDONLY)) < 0) continue;
        }

        strcpy(joydev.name, "Wine Joystick");
#if defined(JSIOCGNAME)
        if (ioctl(fd, JSIOCGNAME(sizeof(joydev.name)), joydev.name) < 0)
            WARN("ioctl(%s,JSIOCGNAME) failed: %s\n", joydev.device, strerror(errno));
#endif

        if (ioctl(fd, JSIOCGAXMAP, joydev.dev_axes_map) < 0)
        {
            WARN("ioctl(%s,JSIOCGNAME) failed: %s\n", joydev.device, strerror(errno));
            joydev.have_axes_map = 0;
        }
        else
        {
            INT j;
            joydev.have_axes_map = 1;

            /* Remap to DI numbers */
            for (j = 0; j < ABS_MAX; j++)
                if (joydev.dev_axes_map[j] < 8)
                    /* Axis match 1-to-1 */
                    joydev.dev_axes_map[j] = j;
                else if (joydev.dev_axes_map[j] == 16 ||
                         joydev.dev_axes_map[j] == 17)
                    /* POV axis */
                    joydev.dev_axes_map[j] = 8;
                else
                    joydev.dev_axes_map[j] = -1;
        }

        close(fd);

        if (!joystick_devices_count)
            new_joydevs = HeapAlloc(GetProcessHeap(), 0, sizeof(struct JoyDev));
        else
            new_joydevs = HeapReAlloc(GetProcessHeap(), 0, joystick_devices,
                                      (joystick_devices_count + 1) * sizeof(struct JoyDev));
        if (!new_joydevs) continue;

        joystick_devices = new_joydevs;
        joystick_devices[joystick_devices_count++] = joydev;
    }

    return joystick_devices_count;
}

static BOOL joydev_enum_deviceA(DWORD dwDevType, DWORD dwFlags, LPDIDEVICEINSTANCEA lpddi, DWORD version, int id)
{
    int fd = -1;

    if (id >= find_joystick_devices()) return FALSE;

    if (dwFlags & DIEDFL_FORCEFEEDBACK) {
        WARN("force feedback not supported\n");
        return FALSE;
    }

    if ((dwDevType == 0) ||
      ((dwDevType == DIDEVTYPE_JOYSTICK) && (version > 0x0300 && version < 0x0800)) ||
      (((dwDevType == DI8DEVCLASS_GAMECTRL) || (dwDevType == DI8DEVTYPE_JOYSTICK)) && (version >= 0x0800))) {
        /* check whether we have a joystick */
        if ((fd = open(joystick_devices[id].device, O_RDONLY)) < 0)
        {
            WARN("open(%s, O_RDONLY) failed: %s\n", joystick_devices[id].name, strerror(errno));
            return FALSE;
        }

        /* Return joystick */
        lpddi->guidInstance = DInput_Wine_Joystick_GUID;
        lpddi->guidInstance.Data3 = id;
        lpddi->guidProduct = DInput_Wine_Joystick_GUID;
        /* we only support traditional joysticks for now */
        if (version >= 0x0800)
            lpddi->dwDevType = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
        else
            lpddi->dwDevType = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);

        strcpy(lpddi->tszInstanceName, joystick_devices[id].name);
        strcpy(lpddi->tszProductName,  joystick_devices[id].name);

        lpddi->guidFFDriver = GUID_NULL;
        close(fd);
        TRACE("Enumerating the linux Joystick device: %s (%s)\n", joystick_devices[id].device, lpddi->tszProductName);
        return TRUE;
    }

    return FALSE;
}

static BOOL joydev_enum_deviceW(DWORD dwDevType, DWORD dwFlags, LPDIDEVICEINSTANCEW lpddi, DWORD version, int id)
{
    int fd = -1;

    if (id >= find_joystick_devices()) return FALSE;

    if (dwFlags & DIEDFL_FORCEFEEDBACK) {
        WARN("force feedback not supported\n");
        return FALSE;
    }

    if ((dwDevType == 0) ||
      ((dwDevType == DIDEVTYPE_JOYSTICK) && (version > 0x0300 && version < 0x0800)) ||
      (((dwDevType == DI8DEVCLASS_GAMECTRL) || (dwDevType == DI8DEVTYPE_JOYSTICK)) && (version >= 0x0800))) {
        /* check whether we have a joystick */
        if ((fd = open(joystick_devices[id].device, O_RDONLY)) < 0)
        {
            WARN("open(%s,O_RDONLY) failed: %s\n", joystick_devices[id].device, strerror(errno));
            return FALSE;
        }

        /* Return joystick */
        lpddi->guidInstance = DInput_Wine_Joystick_GUID;
        lpddi->guidInstance.Data3 = id;
        lpddi->guidProduct = DInput_Wine_Joystick_GUID;
        /* we only support traditional joysticks for now */
        if (version >= 0x0800)
            lpddi->dwDevType = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
        else
            lpddi->dwDevType = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);

        MultiByteToWideChar(CP_ACP, 0, joystick_devices[id].name, -1, lpddi->tszInstanceName, MAX_PATH);
        MultiByteToWideChar(CP_ACP, 0, joystick_devices[id].name, -1, lpddi->tszProductName, MAX_PATH);
        lpddi->guidFFDriver = GUID_NULL;
        close(fd);
        TRACE("Enumerating the linux Joystick device: %s (%s)\n", joystick_devices[id].device, joystick_devices[id].name);
        return TRUE;
    }

    return FALSE;
}

static HRESULT alloc_device(REFGUID rguid, const void *jvt, IDirectInputImpl *dinput,
    LPDIRECTINPUTDEVICEA* pdev, unsigned short index)
{
    DWORD i;
    JoystickImpl* newDevice;
    HRESULT hr;
    LPDIDATAFORMAT df = NULL;
    int idx = 0;

    TRACE("%s %p %p %p %hu\n", debugstr_guid(rguid), jvt, dinput, pdev, index);

    newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(JoystickImpl));
    if (newDevice == 0) {
        WARN("out of memory\n");
        *pdev = 0;
        return DIERR_OUTOFMEMORY;
    }

    newDevice->joydev = &joystick_devices[index];
    if ((newDevice->joyfd = open(newDevice->joydev->device, O_RDONLY)) < 0)
    {
        WARN("open(%s, O_RDONLY) failed: %s\n", newDevice->joydev->device, strerror(errno));
        HeapFree(GetProcessHeap(), 0, newDevice);
        return DIERR_DEVICENOTREG;
    }

    newDevice->generic.guidInstance = DInput_Wine_Joystick_GUID;
    newDevice->generic.guidInstance.Data3 = index;
    newDevice->generic.guidProduct = DInput_Wine_Joystick_GUID;
    newDevice->generic.joy_polldev = joy_polldev;
    newDevice->generic.name        = newDevice->joydev->name;

#ifdef JSIOCGAXES
    if (ioctl(newDevice->joyfd, JSIOCGAXES, &newDevice->generic.device_axis_count) < 0) {
        WARN("ioctl(%s,JSIOCGAXES) failed: %s, defauting to 2\n", newDevice->joydev->device, strerror(errno));
        newDevice->generic.device_axis_count = 2;
    }
#endif
#ifdef JSIOCGBUTTONS
    if (ioctl(newDevice->joyfd, JSIOCGBUTTONS, &newDevice->generic.devcaps.dwButtons) < 0) {
        WARN("ioctl(%s,JSIOCGBUTTONS) failed: %s, defauting to 2\n", newDevice->joydev->device, strerror(errno));
        newDevice->generic.devcaps.dwButtons = 2;
    }
#endif

    if (newDevice->generic.devcaps.dwButtons > 128)
    {
        WARN("Can't support %d buttons. Clamping down to 128\n", newDevice->generic.devcaps.dwButtons);
        newDevice->generic.devcaps.dwButtons = 128;
    }

    newDevice->generic.base.lpVtbl = jvt;
    newDevice->generic.base.ref = 1;
    newDevice->generic.base.dinput = dinput;
    newDevice->generic.base.guid = *rguid;
    InitializeCriticalSection(&newDevice->generic.base.crit);
    newDevice->generic.base.crit.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": JoystickImpl*->generic.base.crit");

    /* setup_dinput_options may change these */
    newDevice->generic.deadzone = 0;

    /* do any user specified configuration */
    hr = setup_dinput_options(&newDevice->generic, newDevice->joydev->have_axes_map ?
                              newDevice->joydev->dev_axes_map : NULL);
    if (hr != DI_OK)
        goto FAILED1;

    /* Create copy of default data format */
    if (!(df = HeapAlloc(GetProcessHeap(), 0, c_dfDIJoystick2.dwSize))) goto FAILED;
    memcpy(df, &c_dfDIJoystick2, c_dfDIJoystick2.dwSize);

    df->dwNumObjs = newDevice->generic.devcaps.dwAxes + newDevice->generic.devcaps.dwPOVs + newDevice->generic.devcaps.dwButtons;
    if (!(df->rgodf = HeapAlloc(GetProcessHeap(), 0, df->dwNumObjs * df->dwObjSize))) goto FAILED;

    for (i = 0; i < newDevice->generic.device_axis_count; i++)
    {
        int wine_obj = newDevice->generic.axis_map[i];

        if (wine_obj < 0) continue;

        memcpy(&df->rgodf[idx], &c_dfDIJoystick2.rgodf[wine_obj], df->dwObjSize);
        if (wine_obj < 8)
            df->rgodf[idx++].dwType = DIDFT_MAKEINSTANCE(wine_obj) | DIDFT_ABSAXIS;
        else
        {
            df->rgodf[idx++].dwType = DIDFT_MAKEINSTANCE(wine_obj - 8) | DIDFT_POV;
            i++; /* POV takes 2 axes */
        }
    }
    for (i = 0; i < newDevice->generic.devcaps.dwButtons; i++)
    {
        memcpy(&df->rgodf[idx], &c_dfDIJoystick2.rgodf[i + 12], df->dwObjSize);
        df->rgodf[idx  ].pguid = &GUID_Button;
        df->rgodf[idx++].dwType = DIDFT_MAKEINSTANCE(i) | DIDFT_PSHBUTTON;
    }
    newDevice->generic.base.data_format.wine_df = df;

    /* initialize default properties */
    for (i = 0; i < c_dfDIJoystick2.dwNumObjs; i++) {
        newDevice->generic.props[i].lDevMin = -32767;
        newDevice->generic.props[i].lDevMax = +32767;
        newDevice->generic.props[i].lMin = 0;
        newDevice->generic.props[i].lMax = 0xffff;
        newDevice->generic.props[i].lDeadZone = newDevice->generic.deadzone; /* % * 1000 */
        newDevice->generic.props[i].lSaturation = 0;
    }

    IDirectInput_AddRef((LPDIRECTINPUTDEVICE8A)newDevice->generic.base.dinput);

    newDevice->generic.devcaps.dwSize = sizeof(newDevice->generic.devcaps);
    newDevice->generic.devcaps.dwFlags = DIDC_ATTACHED;
    if (newDevice->generic.base.dinput->dwVersion >= 0x0800)
        newDevice->generic.devcaps.dwDevType = DI8DEVTYPE_JOYSTICK | (DI8DEVTYPEJOYSTICK_STANDARD << 8);
    else
        newDevice->generic.devcaps.dwDevType = DIDEVTYPE_JOYSTICK | (DIDEVTYPEJOYSTICK_TRADITIONAL << 8);
    newDevice->generic.devcaps.dwFFSamplePeriod = 0;
    newDevice->generic.devcaps.dwFFMinTimeResolution = 0;
    newDevice->generic.devcaps.dwFirmwareRevision = 0;
    newDevice->generic.devcaps.dwHardwareRevision = 0;
    newDevice->generic.devcaps.dwFFDriverVersion = 0;

    if (TRACE_ON(dinput)) {
        _dump_DIDATAFORMAT(newDevice->generic.base.data_format.wine_df);
       for (i = 0; i < (newDevice->generic.device_axis_count); i++)
           TRACE("axis_map[%d] = %d\n", i, newDevice->generic.axis_map[i]);
        _dump_DIDEVCAPS(&newDevice->generic.devcaps);
    }

    *pdev = (LPDIRECTINPUTDEVICEA)newDevice;

    return DI_OK;

FAILED:
    hr = DIERR_OUTOFMEMORY;
FAILED1:
    if (df) HeapFree(GetProcessHeap(), 0, df->rgodf);
    HeapFree(GetProcessHeap(), 0, df);
    release_DataFormat(&newDevice->generic.base.data_format);
    HeapFree(GetProcessHeap(),0,newDevice->generic.axis_map);
    HeapFree(GetProcessHeap(),0,newDevice);
    *pdev = 0;

    return hr;
}

/******************************************************************************
  *     get_joystick_index : Get the joystick index from a given GUID
  */
static unsigned short get_joystick_index(REFGUID guid)
{
    GUID wine_joystick = DInput_Wine_Joystick_GUID;
    GUID dev_guid = *guid;

    wine_joystick.Data3 = 0;
    dev_guid.Data3 = 0;

    /* for the standard joystick GUID use index 0 */
    if(IsEqualGUID(&GUID_Joystick,guid)) return 0;

    /* for the wine joystick GUIDs use the index stored in Data3 */
    if(IsEqualGUID(&wine_joystick, &dev_guid)) return guid->Data3;

    return MAX_JOYSTICKS;
}

static HRESULT joydev_create_deviceA(IDirectInputImpl *dinput, REFGUID rguid, REFIID riid, LPDIRECTINPUTDEVICEA* pdev)
{
    unsigned short index;

    TRACE("%p %s %p %p\n",dinput, debugstr_guid(rguid), riid, pdev);
    find_joystick_devices();
    *pdev = NULL;

    if ((index = get_joystick_index(rguid)) < MAX_JOYSTICKS &&
        joystick_devices_count && index < joystick_devices_count)
    {
        if ((riid == NULL) ||
          IsEqualGUID(&IID_IDirectInputDeviceA,  riid) ||
          IsEqualGUID(&IID_IDirectInputDevice2A, riid) ||
          IsEqualGUID(&IID_IDirectInputDevice7A, riid) ||
          IsEqualGUID(&IID_IDirectInputDevice8A, riid))
        {
            return alloc_device(rguid, &JoystickAvt, dinput, pdev, index);
        }

        WARN("no interface\n");
        return DIERR_NOINTERFACE;
    }

    return DIERR_DEVICENOTREG;
}

static HRESULT joydev_create_deviceW(IDirectInputImpl *dinput, REFGUID rguid, REFIID riid, LPDIRECTINPUTDEVICEW* pdev)
{
    unsigned short index;

    TRACE("%p %s %p %p\n",dinput, debugstr_guid(rguid), riid, pdev);
    find_joystick_devices();
    *pdev = NULL;

    if ((index = get_joystick_index(rguid)) < MAX_JOYSTICKS &&
        joystick_devices_count && index < joystick_devices_count)
    {
        if ((riid == NULL) ||
          IsEqualGUID(&IID_IDirectInputDeviceW,  riid) ||
          IsEqualGUID(&IID_IDirectInputDevice2W, riid) ||
          IsEqualGUID(&IID_IDirectInputDevice7W, riid) ||
          IsEqualGUID(&IID_IDirectInputDevice8W, riid))
        {
            return alloc_device(rguid, &JoystickWvt, dinput, (LPDIRECTINPUTDEVICEA *)pdev, index);
        }
        WARN("no interface\n");
        return DIERR_NOINTERFACE;
    }

    WARN("invalid device GUID %s\n",debugstr_guid(rguid));
    return DIERR_DEVICENOTREG;
}

#undef MAX_JOYSTICKS

const struct dinput_device joystick_linux_device = {
  "Wine Linux joystick driver",
  joydev_enum_deviceA,
  joydev_enum_deviceW,
  joydev_create_deviceA,
  joydev_create_deviceW
};

/******************************************************************************
  *     Acquire : gets exclusive control of the joystick
  */
static HRESULT WINAPI JoystickLinuxAImpl_Acquire(LPDIRECTINPUTDEVICE8A iface)
{
    JoystickImpl *This = (JoystickImpl *)iface;
    HRESULT res;

    TRACE("(%p)\n",This);

    res = IDirectInputDevice2AImpl_Acquire(iface);
    if (res != DI_OK)
        return res;

    /* open the joystick device */
    if (This->joyfd==-1) {
        TRACE("opening joystick device %s\n", This->joydev->device);

        This->joyfd = open(This->joydev->device, O_RDONLY);
        if (This->joyfd==-1) {
            ERR("open(%s) failed: %s\n", This->joydev->device, strerror(errno));
            IDirectInputDevice2AImpl_Unacquire(iface);
            return DIERR_NOTFOUND;
        }
    }

    return DI_OK;
}

/******************************************************************************
  *     Unacquire : frees the joystick
  */
static HRESULT WINAPI JoystickLinuxAImpl_Unacquire(LPDIRECTINPUTDEVICE8A iface)
{
    JoystickImpl *This = (JoystickImpl *)iface;
    HRESULT res;

    TRACE("(%p)\n",This);

    res = IDirectInputDevice2AImpl_Unacquire(iface);

    if (res != DI_OK)
        return res;

    if (This->joyfd!=-1) {
        TRACE("closing joystick device\n");
        close(This->joyfd);
        This->joyfd = -1;
        return DI_OK;
    }

    return DI_NOEFFECT;
}

static void joy_polldev(JoystickGenericImpl *This_in) {
    struct pollfd plfd;
    struct  js_event jse;
    JoystickImpl *This = (JoystickImpl*) This_in;

    TRACE("(%p)\n", This);

    if (This->joyfd==-1) {
        WARN("no device\n");
        return;
    }
    while (1)
    {
        LONG value;
        int inst_id = -1;

      plfd.fd = This->joyfd;
      plfd.events = POLLIN;
      if (poll(&plfd,1,0) != 1)
          return;
      /* we have one event, so we can read */
      if (sizeof(jse)!=read(This->joyfd,&jse,sizeof(jse))) {
          return;
      }
        TRACE("js_event: type 0x%x, number %d, value %d\n",
              jse.type,jse.number,jse.value);
        if (jse.type & JS_EVENT_BUTTON)
        {
            if (jse.number >= This->generic.devcaps.dwButtons) return;

            inst_id = DIDFT_MAKEINSTANCE(jse.number) | DIDFT_PSHBUTTON;
            This->generic.js.rgbButtons[jse.number] = value = jse.value ? 0x80 : 0x00;
        }
        else if (jse.type & JS_EVENT_AXIS)
        {
            int number = This->generic.axis_map[jse.number];      /* wine format object index */

            if (number < 0) return;
            inst_id = DIDFT_MAKEINSTANCE(number) | (number < 8 ? DIDFT_ABSAXIS : DIDFT_POV);
            value = joystick_map_axis(&This->generic.props[id_to_object(This->generic.base.data_format.wine_df, inst_id)], jse.value);

            TRACE("changing axis %d => %d\n", jse.number, number);
            switch (number)
            {
                case 0: This->generic.js.lX  = value; break;
                case 1: This->generic.js.lY  = value; break;
                case 2: This->generic.js.lZ  = value; break;
                case 3: This->generic.js.lRx = value; break;
                case 4: This->generic.js.lRy = value; break;
                case 5: This->generic.js.lRz = value; break;
                case 6: This->generic.js.rglSlider[0] = value; break;
                case 7: This->generic.js.rglSlider[1] = value; break;
                case 8: case 9: case 10: case 11:
                {
                    int idx = number - 8;

                    if (jse.number % 2)
                        This->povs[idx].y = jse.value;
                    else
                        This->povs[idx].x = jse.value;

                    This->generic.js.rgdwPOV[idx] = value = joystick_map_pov(&This->povs[idx]);
                    break;
                }
                default:
                    WARN("axis %d not supported\n", number);
            }
        }
        if (inst_id >= 0)
            queue_event((LPDIRECTINPUTDEVICE8A)This,
                        id_to_offset(&This->generic.base.data_format, inst_id),
                        value, jse.time, This->generic.base.dinput->evsequence++);
    }
}

static const IDirectInputDevice8AVtbl JoystickAvt =
{
      IDirectInputDevice2AImpl_QueryInterface,
      IDirectInputDevice2AImpl_AddRef,
        IDirectInputDevice2AImpl_Release,
      JoystickAGenericImpl_GetCapabilities,
        IDirectInputDevice2AImpl_EnumObjects,
      JoystickAGenericImpl_GetProperty,
      JoystickAGenericImpl_SetProperty,
      JoystickLinuxAImpl_Acquire,
      JoystickLinuxAImpl_Unacquire,
      JoystickAGenericImpl_GetDeviceState,
      IDirectInputDevice2AImpl_GetDeviceData,
      IDirectInputDevice2AImpl_SetDataFormat,
      IDirectInputDevice2AImpl_SetEventNotification,
      IDirectInputDevice2AImpl_SetCooperativeLevel,
      JoystickAGenericImpl_GetObjectInfo,
      JoystickAGenericImpl_GetDeviceInfo,
      IDirectInputDevice2AImpl_RunControlPanel,
      IDirectInputDevice2AImpl_Initialize,
      IDirectInputDevice2AImpl_CreateEffect,
      IDirectInputDevice2AImpl_EnumEffects,
      IDirectInputDevice2AImpl_GetEffectInfo,
      IDirectInputDevice2AImpl_GetForceFeedbackState,
      IDirectInputDevice2AImpl_SendForceFeedbackCommand,
      IDirectInputDevice2AImpl_EnumCreatedEffectObjects,
      IDirectInputDevice2AImpl_Escape,
      JoystickAGenericImpl_Poll,
      IDirectInputDevice2AImpl_SendDeviceData,
      IDirectInputDevice7AImpl_EnumEffectsInFile,
      IDirectInputDevice7AImpl_WriteEffectToFile,
      IDirectInputDevice8AImpl_BuildActionMap,
      IDirectInputDevice8AImpl_SetActionMap,
      IDirectInputDevice8AImpl_GetImageInfo
};

#if !defined(__STRICT_ANSI__) && defined(__GNUC__)
# define XCAST(fun)     (typeof(JoystickWvt.fun))
#else
# define XCAST(fun)     (void*)
#endif

static const IDirectInputDevice8WVtbl JoystickWvt =
{
      IDirectInputDevice2WImpl_QueryInterface,
      XCAST(AddRef)IDirectInputDevice2AImpl_AddRef,
        XCAST(Release)IDirectInputDevice2AImpl_Release,
      XCAST(GetCapabilities)JoystickAGenericImpl_GetCapabilities,
        IDirectInputDevice2WImpl_EnumObjects,
      XCAST(GetProperty)JoystickAGenericImpl_GetProperty,
      XCAST(SetProperty)JoystickAGenericImpl_SetProperty,
      XCAST(Acquire)JoystickLinuxAImpl_Acquire,
      XCAST(Unacquire)JoystickLinuxAImpl_Unacquire,
      XCAST(GetDeviceState)JoystickAGenericImpl_GetDeviceState,
      XCAST(GetDeviceData)IDirectInputDevice2AImpl_GetDeviceData,
      XCAST(SetDataFormat)IDirectInputDevice2AImpl_SetDataFormat,
      XCAST(SetEventNotification)IDirectInputDevice2AImpl_SetEventNotification,
      XCAST(SetCooperativeLevel)IDirectInputDevice2AImpl_SetCooperativeLevel,
        JoystickWGenericImpl_GetObjectInfo,
      JoystickWGenericImpl_GetDeviceInfo,
      XCAST(RunControlPanel)IDirectInputDevice2AImpl_RunControlPanel,
      XCAST(Initialize)IDirectInputDevice2AImpl_Initialize,
      XCAST(CreateEffect)IDirectInputDevice2AImpl_CreateEffect,
      IDirectInputDevice2WImpl_EnumEffects,
      IDirectInputDevice2WImpl_GetEffectInfo,
      XCAST(GetForceFeedbackState)IDirectInputDevice2AImpl_GetForceFeedbackState,
      XCAST(SendForceFeedbackCommand)IDirectInputDevice2AImpl_SendForceFeedbackCommand,
      XCAST(EnumCreatedEffectObjects)IDirectInputDevice2AImpl_EnumCreatedEffectObjects,
      XCAST(Escape)IDirectInputDevice2AImpl_Escape,
      XCAST(Poll)JoystickAGenericImpl_Poll,
      XCAST(SendDeviceData)IDirectInputDevice2AImpl_SendDeviceData,
        IDirectInputDevice7WImpl_EnumEffectsInFile,
        IDirectInputDevice7WImpl_WriteEffectToFile,
        IDirectInputDevice8WImpl_BuildActionMap,
        IDirectInputDevice8WImpl_SetActionMap,
        IDirectInputDevice8WImpl_GetImageInfo
};
#undef XCAST

#else  /* HAVE_LINUX_22_JOYSTICK_API */

const struct dinput_device joystick_linux_device = {
  "Wine Linux joystick driver",
  NULL,
  NULL,
  NULL,
  NULL
};

#endif  /* HAVE_LINUX_22_JOYSTICK_API */

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