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  {
  case 1:
    ret = mfbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
                        dpi, dpi, pvfb->paddedWidth);
    break;
  case 8:
    ret = cfbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
                        dpi, dpi, pvfb->paddedWidth);
    break;
  case 16:
    ret = cfb16ScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
                          dpi, dpi, pvfb->paddedWidth);
    break;
  case 32:
    ret = cfb32ScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
                          dpi, dpi, pvfb->paddedWidth);
    break;
  default:
    return FALSE;
  }

  if (!ret) return FALSE;

  pScreen->CreateGC = vfbMultiDepthCreateGC;
  pScreen->GetImage = vfbMultiDepthGetImage;
  pScreen->GetSpans = vfbMultiDepthGetSpans;

  pScreen->InstallColormap = vfbInstallColormap;
  pScreen->UninstallColormap = vfbUninstallColormap;
  pScreen->ListInstalledColormaps = vfbListInstalledColormaps;

  pScreen->SaveScreen = vfbSaveScreen;
  pScreen->StoreColors = vfbStoreColors;

  miPointerInitialize(pScreen, &vfbPointerSpriteFuncs, &vfbPointerScreenFuncs,
                      FALSE);

  vfbWriteXWDFileHeader(pScreen);

  pScreen->blackPixel = pvfb->blackPixel;
  pScreen->whitePixel = pvfb->whitePixel;

  if (!pvfb->pixelFormatDefined && pvfb->depth == 16) {
    pvfb->pixelFormatDefined = TRUE;
    pvfb->rgbNotBgr = TRUE;
    pvfb->blueBits = pvfb->redBits = 5;
    pvfb->greenBits = 6;
  }

  if (pvfb->pixelFormatDefined) {
    VisualPtr vis;
    for (vis = pScreen->visuals; vis->vid != pScreen->rootVisual; vis++)
      ;

    if (pvfb->rgbNotBgr) {
      vis->offsetBlue = 0;
      vis->blueMask = (1 << pvfb->blueBits) - 1;
      vis->offsetGreen = pvfb->blueBits;
      vis->greenMask = ((1 << pvfb->greenBits) - 1) << vis->offsetGreen;
      vis->offsetRed = vis->offsetGreen + pvfb->greenBits;
      vis->redMask = ((1 << pvfb->redBits) - 1) << vis->offsetRed;
    } else {
      vis->offsetRed = 0;
      vis->redMask = (1 << pvfb->redBits) - 1;
      vis->offsetGreen = pvfb->redBits;
      vis->greenMask = ((1 << pvfb->greenBits) - 1) << vis->offsetGreen;
      vis->offsetBlue = vis->offsetGreen + pvfb->greenBits;
      vis->blueMask = ((1 << pvfb->blueBits) - 1) << vis->offsetBlue;
    }
  }

  if (pvfb->bitsPerPixel == 1)
  {
    ret = mfbCreateDefColormap(pScreen);
  }
  else
  {
    ret = cfbCreateDefColormap(pScreen);
  }

  miSetZeroLineBias(pScreen, pvfb->lineBias);

#ifndef NO_INIT_BACKING_STORE
  miInitializeBackingStore(pScreen);
  pScreen->backingStoreSupport = Always;
#endif

  return ret;

} /* end vfbScreenInit */


static void vfbClientStateChange(CallbackListPtr*, pointer, pointer) {
  dispatchException &= ~DE_RESET;
}

void InitOutput(ScreenInfo *screenInfo, int argc, char **argv)
{
  ErrorF("\nXvnc %s - built %s\n%s", XVNCVERSION, buildtime, XVNCCOPYRIGHT);
  ErrorF("Underlying X server release %d, %s\n\n", VENDOR_RELEASE,
         VENDOR_STRING);
  wellKnownSocketsCreated = true;

  int i;
  int NumFormats = 0;

  /* initialize pixmap formats */

  /* must have a pixmap depth to match every screen depth */
  for (i = 0; i < vfbNumScreens; i++)
  {
    vfbPixmapDepths[vfbScreens[i].depth] = TRUE;
  }

  for (i = 1; i <= 32; i++)
  {
    if (vfbPixmapDepths[i])
    {
      if (NumFormats >= MAXFORMATS)
        FatalError ("MAXFORMATS is too small for this server\n");
      screenInfo->formats[NumFormats].depth = i;
      screenInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);
      screenInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;
      NumFormats++;
    }
  }

  screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
  screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
  screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
  screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
  screenInfo->numPixmapFormats = NumFormats;

  /* initialize screens */

  for (i = 0; i < vfbNumScreens; i++)
  {
    if (-1 == AddScreen(vfbScreenInit, argc, argv))
    {
      FatalError("Couldn't add screen %d", i);
    }
  }

  if (!AddCallback(&ClientStateCallback, vfbClientStateChange, 0)) {
    FatalError("AddCallback failed\n");
  }

} /* end InitOutput */

#ifdef DPMSExtension
extern "C" {
#if NeedFunctionPrototypes
  void DPMSSet(CARD16 level)
#else
    void DPMSSet(level)
    CARD16 level;
#endif
  {
    return;
  }

  Bool DPMSSupported()
  {
    return FALSE;
  }
}
#endif

/* this is just to get the server to link on AIX */
#ifdef AIXV3
int SelectWaitTime = 10000; /* usec */
#endif

Bool LegalModifier(unsigned int key, DevicePtr pDev)
{
  return TRUE;
}

void ProcessInputEvents()
{
  mieqProcessInputEvents();
  miPointerUpdate();
}

/* Fairly standard US PC Keyboard */

#define VFB_MIN_KEY 8
#define VFB_MAX_KEY 255
#define VFB_MAP_LEN (VFB_MAX_KEY - VFB_MIN_KEY + 1)
#define KEYSYMS_PER_KEY 2
KeySym keyboardMap[VFB_MAP_LEN * KEYSYMS_PER_KEY] = {
  NoSymbol, NoSymbol,
  XK_Escape, NoSymbol,
  XK_1, XK_exclam,
  XK_2, XK_at,
  XK_3, XK_numbersign,
  XK_4, XK_dollar,
  XK_5, XK_percent,
  XK_6, XK_asciicircum,
  XK_7, XK_ampersand,
  XK_8, XK_asterisk,
  XK_9, XK_parenleft,
  XK_0, XK_parenright,
  XK_minus, XK_underscore,
  XK_equal, XK_plus,
  XK_BackSpace, NoSymbol,
  XK_Tab, NoSymbol,
  XK_q, XK_Q,
  XK_w, XK_W,
  XK_e, XK_E,
  XK_r, XK_R,
  XK_t, XK_T,
  XK_y, XK_Y,
  XK_u, XK_U,
  XK_i, XK_I,
  XK_o, XK_O,
  XK_p, XK_P,
  XK_bracketleft, XK_braceleft,
  XK_bracketright, XK_braceright,
  XK_Return, NoSymbol,
  XK_Control_L, NoSymbol,
  XK_a, XK_A,
  XK_s, XK_S,
  XK_d, XK_D,
  XK_f, XK_F,
  XK_g, XK_G,
  XK_h, XK_H,
  XK_j, XK_J,
  XK_k, XK_K,
  XK_l, XK_L,
  XK_semicolon, XK_colon,
  XK_apostrophe, XK_quotedbl,
  XK_grave, XK_asciitilde,
  XK_Shift_L, NoSymbol,
  XK_backslash, XK_bar,
  XK_z, XK_Z,
  XK_x, XK_X,
  XK_c, XK_C,
  XK_v, XK_V,
  XK_b, XK_B,
  XK_n, XK_N,
  XK_m, XK_M,
  XK_comma, XK_less,
  XK_period, XK_greater,
  XK_slash, XK_question,
  XK_Shift_R, NoSymbol,
  XK_KP_Multiply, NoSymbol,
  XK_Alt_L, XK_Meta_L,
  XK_space, NoSymbol,
  /*XK_Caps_Lock*/ NoSymbol, NoSymbol,
  XK_F1, NoSymbol,
  XK_F2, NoSymbol,
  XK_F3, NoSymbol,
  XK_F4, NoSymbol,
  XK_F5, NoSymbol,
  XK_F6, NoSymbol,
  XK_F7, NoSymbol,
  XK_F8, NoSymbol,
  XK_F9, NoSymbol,
  XK_F10, NoSymbol,
  XK_Num_Lock, XK_Pointer_EnableKeys,
  XK_Scroll_Lock, NoSymbol,
  XK_KP_Home, XK_KP_7,
  XK_KP_Up, XK_KP_8,
  XK_KP_Prior, XK_KP_9,
  XK_KP_Subtract, NoSymbol,
  XK_KP_Left, XK_KP_4,
  XK_KP_Begin, XK_KP_5,
  XK_KP_Right, XK_KP_6,
  XK_KP_Add, NoSymbol,
  XK_KP_End, XK_KP_1,
  XK_KP_Down, XK_KP_2,
  XK_KP_Next, XK_KP_3,
  XK_KP_Insert, XK_KP_0,
  XK_KP_Delete, XK_KP_Decimal,
  NoSymbol, NoSymbol,
  NoSymbol, NoSymbol,
  NoSymbol, NoSymbol,
  XK_F11, NoSymbol,
  XK_F12, NoSymbol,
  XK_Home, NoSymbol,
  XK_Up, NoSymbol,
  XK_Prior, NoSymbol,
  XK_Left, NoSymbol,
  NoSymbol, NoSymbol,
  XK_Right, NoSymbol,
  XK_End, NoSymbol,
  XK_Down, NoSymbol,
  XK_Next, NoSymbol,
  XK_Insert, NoSymbol,
  XK_Delete, NoSymbol,
  XK_KP_Enter, NoSymbol,
  XK_Control_R, NoSymbol,
  XK_Pause, XK_Break,
  XK_Print, XK_Execute,
  XK_KP_Divide, NoSymbol,
  XK_Alt_R, XK_Meta_R,
};

static Bool GetMappings(KeySymsPtr pKeySyms, CARD8 *pModMap)
{
  int i;

  for (i = 0; i < MAP_LENGTH; i++)
    pModMap[i] = NoSymbol;

  for (i = 0; i < VFB_MAP_LEN; i++) {
    if (keyboardMap[i * KEYSYMS_PER_KEY] == XK_Caps_Lock)
      pModMap[i + VFB_MIN_KEY] = LockMask;
    else if (keyboardMap[i * KEYSYMS_PER_KEY] == XK_Shift_L ||
             keyboardMap[i * KEYSYMS_PER_KEY] == XK_Shift_R)
      pModMap[i + VFB_MIN_KEY] = ShiftMask;
    else if (keyboardMap[i * KEYSYMS_PER_KEY] == XK_Control_L ||
             keyboardMap[i * KEYSYMS_PER_KEY] == XK_Control_R) {
      pModMap[i + VFB_MIN_KEY] = ControlMask;
    }
    else if (keyboardMap[i * KEYSYMS_PER_KEY] == XK_Alt_L ||
             keyboardMap[i * KEYSYMS_PER_KEY] == XK_Alt_R)
      pModMap[i + VFB_MIN_KEY] = Mod1Mask;
  }

  pKeySyms->minKeyCode = VFB_MIN_KEY;
  pKeySyms->maxKeyCode = VFB_MAX_KEY;
  pKeySyms->mapWidth = KEYSYMS_PER_KEY;
  pKeySyms->map = keyboardMap;

  return TRUE;
}

static void vfbBell(int percent, DeviceIntPtr device, pointer ctrl, int class_)
{
  if (percent > 0)
    vncBell();
}

static int vfbKeybdProc(DeviceIntPtr pDevice, int onoff)
{
  KeySymsRec		keySyms;
  CARD8 		modMap[MAP_LENGTH];
  DevicePtr pDev = (DevicePtr)pDevice;

  switch (onoff)
  {
  case DEVICE_INIT: 
    GetMappings(&keySyms, modMap);
    InitKeyboardDeviceStruct(pDev, &keySyms, modMap,
                             (BellProcPtr)vfbBell, (KbdCtrlProcPtr)NoopDDA);
    break;
  case DEVICE_ON: 
    pDev->on = TRUE;
    break;
  case DEVICE_OFF: 
    pDev->on = FALSE;
    break;
  case DEVICE_CLOSE:
    break;
  }
  return Success;
}

static int vfbMouseProc(DeviceIntPtr pDevice, int onoff)
{
  BYTE map[6];
  DevicePtr pDev = (DevicePtr)pDevice;

  switch (onoff)
  {
  case DEVICE_INIT:
    map[1] = 1;
    map[2] = 2;
    map[3] = 3;
    map[4] = 4;
    map[5] = 5;
    InitPointerDeviceStruct(pDev, map, 5, miPointerGetMotionEvents,
                            (PtrCtrlProcPtr)NoopDDA, miPointerGetMotionBufferSize());
    break;

  case DEVICE_ON:
    pDev->on = TRUE;
    break;

  case DEVICE_OFF:
    pDev->on = FALSE;
    break;

  case DEVICE_CLOSE:
    break;
  }
  return Success;
}

// InitInput is called after InitExtensions, so we're guaranteed that
// vncExtensionInit() has already been called.

void InitInput(int argc, char *argv[])
{
  DeviceIntPtr p, k;
  p = AddInputDevice(vfbMouseProc, TRUE);
  k = AddInputDevice(vfbKeybdProc, TRUE);
  RegisterPointerDevice(p);
  RegisterKeyboardDevice(k);
  miRegisterPointerDevice(screenInfo.screens[0], p);
  (void)mieqInit ((DevicePtr)k, (DevicePtr)p);
}