/*
Copyright (C) 1996-1997 Id Software, Inc.

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

*/
// in_win.c -- windows 95 mouse and joystick code
// 02/21/97 JCB Added extended DirectInput code to support external controllers.

#include <dinput.h>
#include "quakedef.h"
#include "winquake.h"
#include "dosisms.h"

#define DINPUT_BUFFERSIZE           16
#define iDirectInputCreate(a,b,c,d) pDirectInputCreate(a,b,c,d)

HRESULT (WINAPI *pDirectInputCreate)(HINSTANCE hinst, DWORD dwVersion,
  LPDIRECTINPUT * lplpDirectInput, LPUNKNOWN punkOuter);

// mouse variables
cvar_t  m_filter = {"m_filter","0"};

int     mouse_buttons;
int     mouse_oldbuttonstate;
POINT   current_pos;
int     mouse_x, mouse_y, old_mouse_x, old_mouse_y, mx_accum, my_accum;

static qboolean restore_spi;
static int    originalmouseparms[3], newmouseparms[3] = {0, 0, 1};

unsigned int uiWheelMessage;
qboolean  mouseactive;
qboolean    mouseinitialized;
static qboolean mouseparmsvalid, mouseactivatetoggle;
static qboolean mouseshowtoggle = 1;
static qboolean dinput_acquired;

static unsigned int   mstate_di;

// joystick defines and variables
// where should defines be moved?
#define JOY_ABSOLUTE_AXIS 0x00000000    // control like a joystick
#define JOY_RELATIVE_AXIS 0x00000010    // control like a mouse, spinner, trackball
#define JOY_MAX_AXES    6       // X, Y, Z, R, U, V
#define JOY_AXIS_X      0
#define JOY_AXIS_Y      1
#define JOY_AXIS_Z      2
#define JOY_AXIS_R      3
#define JOY_AXIS_U      4
#define JOY_AXIS_V      5

enum _ControlList
{
  AxisNada = 0, AxisForward, AxisLook, AxisSide, AxisTurn
};

DWORD dwAxisFlags[JOY_MAX_AXES] =
{
  JOY_RETURNX, JOY_RETURNY, JOY_RETURNZ, JOY_RETURNR, JOY_RETURNU, JOY_RETURNV
};

DWORD dwAxisMap[JOY_MAX_AXES];
DWORD dwControlMap[JOY_MAX_AXES];
PDWORD  pdwRawValue[JOY_MAX_AXES];

// none of these cvars are saved over a session
// this means that advanced controller configuration needs to be executed
// each time.  this avoids any problems with getting back to a default usage
// or when changing from one controller to another.  this way at least something
// works.
cvar_t  in_joystick = {"joystick","0", true};
cvar_t  joy_name = {"joyname", "joystick"};
cvar_t  joy_advanced = {"joyadvanced", "0"};
cvar_t  joy_advaxisx = {"joyadvaxisx", "0"};
cvar_t  joy_advaxisy = {"joyadvaxisy", "0"};
cvar_t  joy_advaxisz = {"joyadvaxisz", "0"};
cvar_t  joy_advaxisr = {"joyadvaxisr", "0"};
cvar_t  joy_advaxisu = {"joyadvaxisu", "0"};
cvar_t  joy_advaxisv = {"joyadvaxisv", "0"};
cvar_t  joy_forwardthreshold = {"joyforwardthreshold", "0.15"};
cvar_t  joy_sidethreshold = {"joysidethreshold", "0.15"};
cvar_t  joy_pitchthreshold = {"joypitchthreshold", "0.15"};
cvar_t  joy_yawthreshold = {"joyyawthreshold", "0.15"};
cvar_t  joy_forwardsensitivity = {"joyforwardsensitivity", "-1.0"};
cvar_t  joy_sidesensitivity = {"joysidesensitivity", "-1.0"};
cvar_t  joy_pitchsensitivity = {"joypitchsensitivity", "1.0"};
cvar_t  joy_yawsensitivity = {"joyyawsensitivity", "-1.0"};
cvar_t  joy_wwhack1 = {"joywwhack1", "0.0"};
cvar_t  joy_wwhack2 = {"joywwhack2", "0.0"};

qboolean  joy_avail, joy_advancedinit, joy_haspov;
DWORD   joy_oldbuttonstate, joy_oldpovstate;

int     joy_id;
DWORD   joy_flags;
DWORD   joy_numbuttons;

static LPDIRECTINPUT    g_pdi;
static LPDIRECTINPUTDEVICE  g_pMouse;

static JOYINFOEX  ji;

static HINSTANCE hInstDI;

static qboolean dinput;

typedef struct MYDATA {
  LONG  lX;                   // X axis goes here
  LONG  lY;                   // Y axis goes here
  LONG  lZ;                   // Z axis goes here
  BYTE  bButtonA;             // One button goes here
  BYTE  bButtonB;             // Another button goes here
  BYTE  bButtonC;             // Another button goes here
  BYTE  bButtonD;             // Another button goes here
} MYDATA;

static DIOBJECTDATAFORMAT rgodf[] = {
  { &GUID_XAxis,    FIELD_OFFSET(MYDATA, lX),       DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
  { &GUID_YAxis,    FIELD_OFFSET(MYDATA, lY),       DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
  { &GUID_ZAxis,    FIELD_OFFSET(MYDATA, lZ),       0x80000000 | DIDFT_AXIS | DIDFT_ANYINSTANCE,   0,},
  { 0,              FIELD_OFFSET(MYDATA, bButtonA), DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
  { 0,              FIELD_OFFSET(MYDATA, bButtonB), DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
  { 0,              FIELD_OFFSET(MYDATA, bButtonC), 0x80000000 | DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
  { 0,              FIELD_OFFSET(MYDATA, bButtonD), 0x80000000 | DIDFT_BUTTON | DIDFT_ANYINSTANCE, 0,},
};

#define NUM_OBJECTS (sizeof(rgodf) / sizeof(rgodf[0]))

static DIDATAFORMAT df = {
  sizeof(DIDATAFORMAT),       // this structure
  sizeof(DIOBJECTDATAFORMAT), // size of object data format
  DIDF_RELAXIS,               // absolute axis coordinates
  sizeof(MYDATA),             // device data size
  NUM_OBJECTS,                // number of objects
  rgodf,                      // and here they are
};

// forward-referenced functions
void IN_StartupJoystick (void);
void Joy_AdvancedUpdate_f (void);
void IN_JoyMove (usercmd_t *cmd);


/*
===========
Force_CenterView_f
===========
*/
void Force_CenterView_f (void)
{
  cl.viewangles[PITCH] = 0;
}


/*
===========
IN_UpdateClipCursor
===========
*/
void IN_UpdateClipCursor (void)
{

  if (mouseinitialized && mouseactive && !dinput)
  {
    ClipCursor (&window_rect);
  }
}


/*
===========
IN_ShowMouse
===========
*/
void IN_ShowMouse (void)
{

  if (!mouseshowtoggle)
  {
    ShowCursor (TRUE);
    mouseshowtoggle = 1;
  }
}


/*
===========
IN_HideMouse
===========
*/
void IN_HideMouse (void)
{

  if (mouseshowtoggle)
  {
    ShowCursor (FALSE);
    mouseshowtoggle = 0;
  }
}


/*
===========
IN_ActivateMouse
===========
*/
void IN_ActivateMouse (void)
{

  mouseactivatetoggle = true;

  if (mouseinitialized)
  {
    if (dinput)
    {
      if (g_pMouse)
      {
        if (!dinput_acquired)
        {
          IDirectInputDevice_Acquire(g_pMouse);
          dinput_acquired = true;
        }
      }
      else
      {
        return;
      }
    }
    else
    {
      if (mouseparmsvalid)
        restore_spi = SystemParametersInfo (SPI_SETMOUSE, 0, newmouseparms, 0);

      SetCursorPos (window_center_x, window_center_y);
      SetCapture (mainwindow);
      ClipCursor (&window_rect);
    }

    mouseactive = true;
  }
}


/*
===========
IN_SetQuakeMouseState
===========
*/
void IN_SetQuakeMouseState (void)
{
  if (mouseactivatetoggle)
    IN_ActivateMouse ();
}


/*
===========
IN_DeactivateMouse
===========
*/
void IN_DeactivateMouse (void)
{

  mouseactivatetoggle = false;

  if (mouseinitialized)
  {
    if (dinput)
    {
      if (g_pMouse)
      {
        if (dinput_acquired)
        {
          IDirectInputDevice_Unacquire(g_pMouse);
          dinput_acquired = false;
        }
      }
    }
    else
    {
      if (restore_spi)
        SystemParametersInfo (SPI_SETMOUSE, 0, originalmouseparms, 0);

      ClipCursor (NULL);
      ReleaseCapture ();
    }

    mouseactive = false;
  }
}


/*
===========
IN_RestoreOriginalMouseState
===========
*/
void IN_RestoreOriginalMouseState (void)
{
  if (mouseactivatetoggle)
  {
    IN_DeactivateMouse ();
    mouseactivatetoggle = true;
  }

// try to redraw the cursor so it gets reinitialized, because sometimes it
// has garbage after the mode switch
  ShowCursor (TRUE);
  ShowCursor (FALSE);
}


/*
===========
IN_InitDInput
===========
*/
qboolean IN_InitDInput (void)
{
    HRESULT   hr;
  DIPROPDWORD dipdw = {
    {
      sizeof(DIPROPDWORD),        // diph.dwSize
      sizeof(DIPROPHEADER),       // diph.dwHeaderSize
      0,                          // diph.dwObj
      DIPH_DEVICE,                // diph.dwHow
    },
    DINPUT_BUFFERSIZE,              // dwData
  };

  if (!hInstDI)
  {
    hInstDI = LoadLibrary("dinput.dll");
    
    if (hInstDI == NULL)
    {
      Con_SafePrintf ("Couldn't load dinput.dll\n");
      return false;
    }
  }

  if (!pDirectInputCreate)
  {
    pDirectInputCreate = (void *)GetProcAddress(hInstDI,"DirectInputCreateA");

    if (!pDirectInputCreate)
    {
      Con_SafePrintf ("Couldn't get DI proc addr\n");
      return false;
    }
  }

// register with DirectInput and get an IDirectInput to play with.
  hr = iDirectInputCreate(global_hInstance, DIRECTINPUT_VERSION, &g_pdi, NULL);

  if (FAILED(hr))
  {
    return false;
  }

// obtain an interface to the system mouse device.
  hr = IDirectInput_CreateDevice(g_pdi, &GUID_SysMouse, &g_pMouse, NULL);

  if (FAILED(hr))
  {
    Con_SafePrintf ("Couldn't open DI mouse device\n");
    return false;
  }

// set the data format to "mouse format".
  hr = IDirectInputDevice_SetDataFormat(g_pMouse, &df);

  if (FAILED(hr))
  {
    Con_SafePrintf ("Couldn't set DI mouse format\n");
    return false;
  }

// set the cooperativity level.
  hr = IDirectInputDevice_SetCooperativeLevel(g_pMouse, mainwindow,
      DISCL_EXCLUSIVE | DISCL_FOREGROUND);

  if (FAILED(hr))
  {
    Con_SafePrintf ("Couldn't set DI coop level\n");
    return false;
  }


// set the buffer size to DINPUT_BUFFERSIZE elements.
// the buffer size is a DWORD property associated with the device
  hr = IDirectInputDevice_SetProperty(g_pMouse, DIPROP_BUFFERSIZE, &dipdw.diph);

  if (FAILED(hr))
  {
    Con_SafePrintf ("Couldn't set DI buffersize\n");
    return false;
  }

  return true;
}


/*
===========
IN_StartupMouse
===========
*/
void IN_StartupMouse (void)
{
  HDC     hdc;

  if ( COM_CheckParm ("-nomouse") ) 
    return; 

  mouseinitialized = true;

  if (COM_CheckParm ("-dinput"))
  {
    dinput = IN_InitDInput ();

    if (dinput)
    {
      Con_SafePrintf ("DirectInput initialized\n");
    }
    else
    {
      Con_SafePrintf ("DirectInput not initialized\n");
    }
  }

  if (!dinput)
  {
    mouseparmsvalid = SystemParametersInfo (SPI_GETMOUSE, 0, originalmouseparms, 0);

    if (mouseparmsvalid)
    {
      if ( COM_CheckParm ("-noforcemspd") ) 
        newmouseparms[2] = originalmouseparms[2];

      if ( COM_CheckParm ("-noforcemaccel") ) 
      {
        newmouseparms[0] = originalmouseparms[0];
        newmouseparms[1] = originalmouseparms[1];
      }

      if ( COM_CheckParm ("-noforcemparms") ) 
      {
        newmouseparms[0] = originalmouseparms[0];
        newmouseparms[1] = originalmouseparms[1];
        newmouseparms[2] = originalmouseparms[2];
      }
    }
  }

  mouse_buttons = 3;

// if a fullscreen video mode was set before the mouse was initialized,
// set the mouse state appropriately
  if (mouseactivatetoggle)
    IN_ActivateMouse ();
}


/*
===========
IN_Init
===========
*/
void IN_Init (void)
{
  // mouse variables
  Cvar_RegisterVariable (&m_filter);

  // joystick variables
  Cvar_RegisterVariable (&in_joystick);
  Cvar_RegisterVariable (&joy_name);
  Cvar_RegisterVariable (&joy_advanced);
  Cvar_RegisterVariable (&joy_advaxisx);
  Cvar_RegisterVariable (&joy_advaxisy);
  Cvar_RegisterVariable (&joy_advaxisz);
  Cvar_RegisterVariable (&joy_advaxisr);
  Cvar_RegisterVariable (&joy_advaxisu);
  Cvar_RegisterVariable (&joy_advaxisv);
  Cvar_RegisterVariable (&joy_forwardthreshold);
  Cvar_RegisterVariable (&joy_sidethreshold);
  Cvar_RegisterVariable (&joy_pitchthreshold);
  Cvar_RegisterVariable (&joy_yawthreshold);
  Cvar_RegisterVariable (&joy_forwardsensitivity);
  Cvar_RegisterVariable (&joy_sidesensitivity);
  Cvar_RegisterVariable (&joy_pitchsensitivity);
  Cvar_RegisterVariable (&joy_yawsensitivity);
  Cvar_RegisterVariable (&joy_wwhack1);
  Cvar_RegisterVariable (&joy_wwhack2);

  Cmd_AddCommand ("force_centerview", Force_CenterView_f);
  Cmd_AddCommand ("joyadvancedupdate", Joy_AdvancedUpdate_f);

  uiWheelMessage = RegisterWindowMessage ( "MSWHEEL_ROLLMSG" );

  IN_StartupMouse ();
  IN_StartupJoystick ();
}

/*
===========
IN_Shutdown
===========
*/
void IN_Shutdown (void)
{

  IN_DeactivateMouse ();
  IN_ShowMouse ();

    if (g_pMouse)
  {
    IDirectInputDevice_Release(g_pMouse);
    g_pMouse = NULL;
  }

    if (g_pdi)
  {
    IDirectInput_Release(g_pdi);
    g_pdi = NULL;
  }
}


/*
===========
IN_MouseEvent
===========
*/
void IN_MouseEvent (int mstate)
{
  int i;

  if (mouseactive && !dinput)
  {
  // perform button actions
    for (i=0 ; i<mouse_buttons ; i++)
    {
      if ( (mstate & (1<<i)) &&
        !(mouse_oldbuttonstate & (1<<i)) )
      {
        Key_Event (K_MOUSE1 + i, true);
      }

      if ( !(mstate & (1<<i)) &&
        (mouse_oldbuttonstate & (1<<i)) )
      {
        Key_Event (K_MOUSE1 + i, false);
      }
    } 
      
    mouse_oldbuttonstate = mstate;
  }
}


/*
===========
IN_MouseMove
===========
*/
void IN_MouseMove (usercmd_t *cmd)
{
  int         mx, my;
  HDC         hdc;
  int         i;
  DIDEVICEOBJECTDATA  od;
  DWORD       dwElements;
  HRESULT       hr;

  if (!mouseactive)
    return;

  if (dinput)
  {
    mx = 0;
    my = 0;

    for (;;)
    {
      dwElements = 1;

      hr = IDirectInputDevice_GetDeviceData(g_pMouse,
          sizeof(DIDEVICEOBJECTDATA), &od, &dwElements, 0);

      if ((hr == DIERR_INPUTLOST) || (hr == DIERR_NOTACQUIRED))
      {
        dinput_acquired = true;
        IDirectInputDevice_Acquire(g_pMouse);
        break;
      }

      /* Unable to read data or no data available */
      if (FAILED(hr) || dwElements == 0)
      {
        break;
      }

      /* Look at the element to see what happened */

      switch (od.dwOfs)
      {
        case DIMOFS_X:
          mx += od.dwData;
          break;

        case DIMOFS_Y:
          my += od.dwData;
          break;

        case DIMOFS_BUTTON0:
          if (od.dwData & 0x80)
            mstate_di |= 1;
          else
            mstate_di &= ~1;
          break;

        case DIMOFS_BUTTON1:
          if (od.dwData & 0x80)
            mstate_di |= (1<<1);
          else
            mstate_di &= ~(1<<1);
          break;
          
        case DIMOFS_BUTTON2:
          if (od.dwData & 0x80)
            mstate_di |= (1<<2);
          else
            mstate_di &= ~(1<<2);
          break;
      }
    }

  // perform button actions
    for (i=0 ; i<mouse_buttons ; i++)
    {
      if ( (mstate_di & (1<<i)) &&
        !(mouse_oldbuttonstate & (1<<i)) )
      {
        Key_Event (K_MOUSE1 + i, true);
      }

      if ( !(mstate_di & (1<<i)) &&
        (mouse_oldbuttonstate & (1<<i)) )
      {
        Key_Event (K_MOUSE1 + i, false);
      }
    } 
      
    mouse_oldbuttonstate = mstate_di;
  }
  else
  {
    GetCursorPos (&current_pos);
    mx = current_pos.x - window_center_x + mx_accum;
    my = current_pos.y - window_center_y + my_accum;
    mx_accum = 0;
    my_accum = 0;
  }

//if (mx ||  my)
//  Con_DPrintf("mx=%d, my=%d\n", mx, my);

  if (m_filter.value)
  {
    mouse_x = (mx + old_mouse_x) * 0.5;
    mouse_y = (my + old_mouse_y) * 0.5;
  }
  else
  {
    mouse_x = mx;
    mouse_y = my;
  }

  old_mouse_x = mx;
  old_mouse_y = my;

  mouse_x *= sensitivity.value;
  mouse_y *= sensitivity.value;

// add mouse X/Y movement to cmd
  if ( (in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1) ))
    cmd->sidemove += m_side.value * mouse_x;
  else
    cl.viewangles[YAW] -= m_yaw.value * mouse_x;

  if (in_mlook.state & 1)
    V_StopPitchDrift ();
    
  if ( (in_mlook.state & 1) && !(in_strafe.state & 1))
  {
    cl.viewangles[PITCH] += m_pitch.value * mouse_y;
    if (cl.viewangles[PITCH] > 80)
      cl.viewangles[PITCH] = 80;
    if (cl.viewangles[PITCH] < -70)
      cl.viewangles[PITCH] = -70;
  }
  else
  {
    if ((in_strafe.state & 1) && noclip_anglehack)
      cmd->upmove -= m_forward.value * mouse_y;
    else
      cmd->forwardmove -= m_forward.value * mouse_y;
  }

// if the mouse has moved, force it to the center, so there's room to move
  if (mx || my)
  {
    SetCursorPos (window_center_x, window_center_y);
  }
}


/*
===========
IN_Move
===========
*/
void IN_Move (usercmd_t *cmd)
{

  if (ActiveApp && !Minimized)
  {
    IN_MouseMove (cmd);
    IN_JoyMove (cmd);
  }
}


/*
===========
IN_Accumulate
===========
*/
void IN_Accumulate (void)
{
  int   mx, my;
  HDC hdc;

  if (mouseactive)
  {
    if (!dinput)
    {
      GetCursorPos (&current_pos);

      mx_accum += current_pos.x - window_center_x;
      my_accum += current_pos.y - window_center_y;

    // force the mouse to the center, so there's room to move
      SetCursorPos (window_center_x, window_center_y);
    }
  }
}


/*
===================
IN_ClearStates
===================
*/
void IN_ClearStates (void)
{

  if (mouseactive)
  {
    mx_accum = 0;
    my_accum = 0;
    mouse_oldbuttonstate = 0;
  }
}


/* 
=============== 
IN_StartupJoystick 
=============== 
*/  
void IN_StartupJoystick (void) 
{ 
  int     i, numdevs;
  JOYCAPS   jc;
  MMRESULT  mmr;
 
  // assume no joystick
  joy_avail = false; 

  // abort startup if user requests no joystick
  if ( COM_CheckParm ("-nojoy") ) 
    return; 
 
  // verify joystick driver is present
  if ((numdevs = joyGetNumDevs ()) == 0)
  {
    Con_Printf ("\njoystick not found -- driver not present\n\n");
    return;
  }

  // cycle through the joystick ids for the first valid one
  for (joy_id=0 ; joy_id<numdevs ; joy_id++)
  {
    memset (&ji, 0, sizeof(ji));
    ji.dwSize = sizeof(ji);
    ji.dwFlags = JOY_RETURNCENTERED;

    if ((mmr = joyGetPosEx (joy_id, &ji)) == JOYERR_NOERROR)
      break;
  } 

  // abort startup if we didn't find a valid joystick
  if (mmr != JOYERR_NOERROR)
  {
    Con_Printf ("\njoystick not found -- no valid joysticks (%x)\n\n", mmr);
    return;
  }

  // get the capabilities of the selected joystick
  // abort startup if command fails
  memset (&jc, 0, sizeof(jc));
  if ((mmr = joyGetDevCaps (joy_id, &jc, sizeof(jc))) != JOYERR_NOERROR)
  {
    Con_Printf ("\njoystick not found -- invalid joystick capabilities (%x)\n\n", mmr); 
    return;
  }

  // save the joystick's number of buttons and POV status
  joy_numbuttons = jc.wNumButtons;
  joy_haspov = jc.wCaps & JOYCAPS_HASPOV;

  // old button and POV states default to no buttons pressed
  joy_oldbuttonstate = joy_oldpovstate = 0;

  // mark the joystick as available and advanced initialization not completed
  // this is needed as cvars are not available during initialization

  joy_avail = true; 
  joy_advancedinit = false;

  Con_Printf ("\njoystick detected\n\n"); 
}


/*
===========
RawValuePointer
===========
*/
PDWORD RawValuePointer (int axis)
{
  switch (axis)
  {
  case JOY_AXIS_X:
    return &ji.dwXpos;
  case JOY_AXIS_Y:
    return &ji.dwYpos;
  case JOY_AXIS_Z:
    return &ji.dwZpos;
  case JOY_AXIS_R:
    return &ji.dwRpos;
  case JOY_AXIS_U:
    return &ji.dwUpos;
  case JOY_AXIS_V:
    return &ji.dwVpos;
  }
}


/*
===========
Joy_AdvancedUpdate_f
===========
*/
void Joy_AdvancedUpdate_f (void)
{

  // called once by IN_ReadJoystick and by user whenever an update is needed
  // cvars are now available
  int i;
  DWORD dwTemp;

  // initialize all the maps
  for (i = 0; i < JOY_MAX_AXES; i++)
  {
    dwAxisMap[i] = AxisNada;
    dwControlMap[i] = JOY_ABSOLUTE_AXIS;
    pdwRawValue[i] = RawValuePointer(i);
  }

  if( joy_advanced.value == 0.0)
  {
    // default joystick initialization
    // 2 axes only with joystick control
    dwAxisMap[JOY_AXIS_X] = AxisTurn;
    // dwControlMap[JOY_AXIS_X] = JOY_ABSOLUTE_AXIS;
    dwAxisMap[JOY_AXIS_Y] = AxisForward;
    // dwControlMap[JOY_AXIS_Y] = JOY_ABSOLUTE_AXIS;
  }
  else
  {
    if (Q_strcmp (joy_name.string, "joystick") != 0)
    {
      // notify user of advanced controller
      Con_Printf ("\n%s configured\n\n", joy_name.string);
    }

    // advanced initialization here
    // data supplied by user via joy_axisn cvars
    dwTemp = (DWORD) joy_advaxisx.value;
    dwAxisMap[JOY_AXIS_X] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_X] = dwTemp & JOY_RELATIVE_AXIS;
    dwTemp = (DWORD) joy_advaxisy.value;
    dwAxisMap[JOY_AXIS_Y] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_Y] = dwTemp & JOY_RELATIVE_AXIS;
    dwTemp = (DWORD) joy_advaxisz.value;
    dwAxisMap[JOY_AXIS_Z] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_Z] = dwTemp & JOY_RELATIVE_AXIS;
    dwTemp = (DWORD) joy_advaxisr.value;
    dwAxisMap[JOY_AXIS_R] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_R] = dwTemp & JOY_RELATIVE_AXIS;
    dwTemp = (DWORD) joy_advaxisu.value;
    dwAxisMap[JOY_AXIS_U] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_U] = dwTemp & JOY_RELATIVE_AXIS;
    dwTemp = (DWORD) joy_advaxisv.value;
    dwAxisMap[JOY_AXIS_V] = dwTemp & 0x0000000f;
    dwControlMap[JOY_AXIS_V] = dwTemp & JOY_RELATIVE_AXIS;
  }

  // compute the axes to collect from DirectInput
  joy_flags = JOY_RETURNCENTERED | JOY_RETURNBUTTONS | JOY_RETURNPOV;
  for (i = 0; i < JOY_MAX_AXES; i++)
  {
    if (dwAxisMap[i] != AxisNada)
    {
      joy_flags |= dwAxisFlags[i];
    }
  }
}


/*
===========
IN_Commands
===========
*/
void IN_Commands (void)
{
  int   i, key_index;
  DWORD buttonstate, povstate;

  if (!joy_avail)
  {
    return;
  }

  
  // loop through the joystick buttons
  // key a joystick event or auxillary event for higher number buttons for each state change
  buttonstate = ji.dwButtons;
  for (i=0 ; i < joy_numbuttons ; i++)
  {
    if ( (buttonstate & (1<<i)) && !(joy_oldbuttonstate & (1<<i)) )
    {
      key_index = (i < 4) ? K_JOY1 : K_AUX1;
      Key_Event (key_index + i, true);
    }

    if ( !(buttonstate & (1<<i)) && (joy_oldbuttonstate & (1<<i)) )
    {
      key_index = (i < 4) ? K_JOY1 : K_AUX1;
      Key_Event (key_index + i, false);
    }
  }
  joy_oldbuttonstate = buttonstate;

  if (joy_haspov)
  {
    // convert POV information into 4 bits of state information
    // this avoids any potential problems related to moving from one
    // direction to another without going through the center position
    povstate = 0;
    if(ji.dwPOV != JOY_POVCENTERED)
    {
      if (ji.dwPOV == JOY_POVFORWARD)
        povstate |= 0x01;
      if (ji.dwPOV == JOY_POVRIGHT)
        povstate |= 0x02;
      if (ji.dwPOV == JOY_POVBACKWARD)
        povstate |= 0x04;
      if (ji.dwPOV == JOY_POVLEFT)
        povstate |= 0x08;
    }
    // determine which bits have changed and key an auxillary event for each change
    for (i=0 ; i < 4 ; i++)
    {
      if ( (povstate & (1<<i)) && !(joy_oldpovstate & (1<<i)) )
      {
        Key_Event (K_AUX29 + i, true);
      }

      if ( !(povstate & (1<<i)) && (joy_oldpovstate & (1<<i)) )
      {
        Key_Event (K_AUX29 + i, false);
      }
    }
    joy_oldpovstate = povstate;
  }
}


/* 
=============== 
IN_ReadJoystick
=============== 
*/  
qboolean IN_ReadJoystick (void)
{

  memset (&ji, 0, sizeof(ji));
  ji.dwSize = sizeof(ji);
  ji.dwFlags = joy_flags;

  if (joyGetPosEx (joy_id, &ji) == JOYERR_NOERROR)
  {
    // this is a hack -- there is a bug in the Logitech WingMan Warrior DirectInput Driver
    // rather than having 32768 be the zero point, they have the zero point at 32668
    // go figure -- anyway, now we get the full resolution out of the device
    if (joy_wwhack1.value != 0.0)
    {
      ji.dwUpos += 100;
    }
    return true;
  }
  else
  {
    // read error occurred
    // turning off the joystick seems too harsh for 1 read error,\
    // but what should be done?
    // Con_Printf ("IN_ReadJoystick: no response\n");
    // joy_avail = false;
    return false;
  }
}


/*
===========
IN_JoyMove
===========
*/
void IN_JoyMove (usercmd_t *cmd)
{
  float speed, aspeed;
  float fAxisValue, fTemp;
  int   i;

  // complete initialization if first time in
  // this is needed as cvars are not available at initialization time
  if( joy_advancedinit != true )
  {
    Joy_AdvancedUpdate_f();
    joy_advancedinit = true;
  }

  // verify joystick is available and that the user wants to use it
  if (!joy_avail || !in_joystick.value)
  {
    return; 
  }
 
  // collect the joystick data, if possible
  if (IN_ReadJoystick () != true)
  {
    return;
  }

  if (in_speed.state & 1)
    speed = cl_movespeedkey.value;
  else
    speed = 1;
  aspeed = speed * host_frametime;

  // loop through the axes
  for (i = 0; i < JOY_MAX_AXES; i++)
  {
    // get the floating point zero-centered, potentially-inverted data for the current axis
    fAxisValue = (float) *pdwRawValue[i];
    // move centerpoint to zero
    fAxisValue -= 32768.0;

    if (joy_wwhack2.value != 0.0)
    {
      if (dwAxisMap[i] == AxisTurn)
      {
        // this is a special formula for the Logitech WingMan Warrior
        // y=ax^b; where a = 300 and b = 1.3
        // also x values are in increments of 800 (so this is factored out)
        // then bounds check result to level out excessively high spin rates
        fTemp = 300.0 * pow(abs(fAxisValue) / 800.0, 1.3);
        if (fTemp > 14000.0)
          fTemp = 14000.0;
        // restore direction information
        fAxisValue = (fAxisValue > 0.0) ? fTemp : -fTemp;
      }
    }

    // convert range from -32768..32767 to -1..1 
    fAxisValue /= 32768.0;

    switch (dwAxisMap[i])
    {
    case AxisForward:
      if ((joy_advanced.value == 0.0) && (in_mlook.state & 1))
      {
        // user wants forward control to become look control
        if (fabs(fAxisValue) > joy_pitchthreshold.value)
        {   
          // if mouse invert is on, invert the joystick pitch value
          // only absolute control support here (joy_advanced is false)
          if (m_pitch.value < 0.0)
          {
            cl.viewangles[PITCH] -= (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
          }
          else
          {
            cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
          }
          V_StopPitchDrift();
        }
        else
        {
          // no pitch movement
          // disable pitch return-to-center unless requested by user
          // *** this code can be removed when the lookspring bug is fixed
          // *** the bug always has the lookspring feature on
          if(lookspring.value == 0.0)
            V_StopPitchDrift();
        }
      }
      else
      {
        // user wants forward control to be forward control
        if (fabs(fAxisValue) > joy_forwardthreshold.value)
        {
          cmd->forwardmove += (fAxisValue * joy_forwardsensitivity.value) * speed * cl_forwardspeed.value;
        }
      }
      break;

    case AxisSide:
      if (fabs(fAxisValue) > joy_sidethreshold.value)
      {
        cmd->sidemove += (fAxisValue * joy_sidesensitivity.value) * speed * cl_sidespeed.value;
      }
      break;

    case AxisTurn:
      if ((in_strafe.state & 1) || (lookstrafe.value && (in_mlook.state & 1)))
      {
        // user wants turn control to become side control
        if (fabs(fAxisValue) > joy_sidethreshold.value)
        {
          cmd->sidemove -= (fAxisValue * joy_sidesensitivity.value) * speed * cl_sidespeed.value;
        }
      }
      else
      {
        // user wants turn control to be turn control
        if (fabs(fAxisValue) > joy_yawthreshold.value)
        {
          if(dwControlMap[i] == JOY_ABSOLUTE_AXIS)
          {
            cl.viewangles[YAW] += (fAxisValue * joy_yawsensitivity.value) * aspeed * cl_yawspeed.value;
          }
          else
          {
            cl.viewangles[YAW] += (fAxisValue * joy_yawsensitivity.value) * speed * 180.0;
          }

        }
      }
      break;

    case AxisLook:
      if (in_mlook.state & 1)
      {
        if (fabs(fAxisValue) > joy_pitchthreshold.value)
        {
          // pitch movement detected and pitch movement desired by user
          if(dwControlMap[i] == JOY_ABSOLUTE_AXIS)
          {
            cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * aspeed * cl_pitchspeed.value;
          }
          else
          {
            cl.viewangles[PITCH] += (fAxisValue * joy_pitchsensitivity.value) * speed * 180.0;
          }
          V_StopPitchDrift();
        }
        else
        {
          // no pitch movement
          // disable pitch return-to-center unless requested by user
          // *** this code can be removed when the lookspring bug is fixed
          // *** the bug always has the lookspring feature on
          if(lookspring.value == 0.0)
            V_StopPitchDrift();
        }
      }
      break;

    default:
      break;
    }
  }

  // bounds check pitch
  if (cl.viewangles[PITCH] > 80.0)
    cl.viewangles[PITCH] = 80.0;
  if (cl.viewangles[PITCH] < -70.0)
    cl.viewangles[PITCH] = -70.0;
}