path: root/hw/xfree86/common/xf86Init.c

/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86Init.c,v 3.212 2004/01/27 01:31:45 dawes Exp $ */

/*
 * Loosely based on code bearing the following copyright:
 *
 *   Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
 */
/*
 * Copyright (c) 1992-2003 by The XFree86 Project, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * Except as contained in this notice, the name of the copyright holder(s)
 * and author(s) shall not be used in advertising or otherwise to promote
 * the sale, use or other dealings in this Software without prior written
 * authorization from the copyright holder(s) and author(s).
 */

#include <stdlib.h>

#undef HAS_UTSNAME
#if !defined(WIN32) && !defined(__UNIXOS2__)
#define HAS_UTSNAME 1
#include <sys/utsname.h>
#endif

#define NEED_EVENTS
#ifdef __UNIXOS2__
#define I_NEED_OS2_H
#endif
#include "X.h"
#include "Xmd.h"
#include "Xproto.h"
#include "Xatom.h"
#include "input.h"
#include "servermd.h"
#include "windowstr.h"
#include "scrnintstr.h"
#include "site.h"
#include "mi.h"

#include "compiler.h"

#ifdef XFree86LOADER
#include "loaderProcs.h"
#endif
#ifdef XFreeXDGA
#include "dgaproc.h"
#endif

#define XF86_OS_PRIVS
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Config.h"
#include "xf86_OSlib.h"
#include "xorgVersion.h"
#include "xf86Date.h"
#include "xf86Build.h"
#include "mipointer.h"
#ifdef XINPUT
#include "XI.h"
#include "XIproto.h"
#else
#include "inputstr.h"
#endif
#include "xf86DDC.h"
#include "xf86Xinput.h"
#include "xf86InPriv.h"
#ifdef RENDER
#include "picturestr.h"
#endif

#include "globals.h"

#ifdef XTESTEXT1
#include "atKeynames.h"
extern int xtest_command_key;
#endif /* XTESTEXT1 */

#ifdef DPMSExtension
#define DPMS_SERVER
#include "extensions/dpms.h"
#endif


/* forward declarations */

static void xf86PrintBanner(void);
static void xf86PrintMarkers(void);
static void xf86RunVtInit(void);

#ifdef DO_CHECK_BETA
static int extraDays = 0;
static char *expKey = NULL;
#endif

#ifdef __UNIXOS2__
extern void os2ServerVideoAccess();
#endif

void (*xf86OSPMClose)(void) = NULL;

#ifdef XFree86LOADER
static char *baseModules[] = {
	"bitmap",
	"pcidata",
	NULL
};
#endif

/* Common pixmap formats */

static PixmapFormatRec formats[MAXFORMATS] = {
	{ 1,	1,	BITMAP_SCANLINE_PAD },
	{ 4,	8,	BITMAP_SCANLINE_PAD },
	{ 8,	8,	BITMAP_SCANLINE_PAD },
	{ 15,	16,	BITMAP_SCANLINE_PAD },
	{ 16,	16,	BITMAP_SCANLINE_PAD },
	{ 24,	32,	BITMAP_SCANLINE_PAD },
#ifdef RENDER
	{ 32,	32,	BITMAP_SCANLINE_PAD },
#endif
};
#ifdef RENDER
static int numFormats = 7;
#else
static int numFormats = 6;
#endif
static Bool formatsDone = FALSE;

InputDriverRec xf86KEYBOARD = {
	1,
	"keyboard",
	NULL,
	NULL,
	NULL,
	NULL,
	0
};

static Bool
xf86CreateRootWindow(WindowPtr pWin)
{
  int ret = TRUE;
  int err = Success;
  ScreenPtr pScreen = pWin->drawable.pScreen;
  RootWinPropPtr pProp;
  CreateWindowProcPtr CreateWindow =
    (CreateWindowProcPtr)(pScreen->devPrivates[xf86CreateRootWindowIndex].ptr);

#ifdef DEBUG
  ErrorF("xf86CreateRootWindow(%p)\n", pWin);
#endif

  if ( pScreen->CreateWindow != xf86CreateRootWindow ) {
    /* Can't find hook we are hung on */
	xf86DrvMsg(pScreen->myNum, X_WARNING /* X_ERROR */,
		  "xf86CreateRootWindow %p called when not in pScreen->CreateWindow %p n",
		   (void *)xf86CreateRootWindow,
		   (void *)pScreen->CreateWindow );
  }

  /* Unhook this function ... */
  pScreen->CreateWindow = CreateWindow;
  pScreen->devPrivates[xf86CreateRootWindowIndex].ptr = NULL;

  /* ... and call the previous CreateWindow fuction, if any */
  if (NULL!=pScreen->CreateWindow) {
    ret = (*pScreen->CreateWindow)(pWin);
  }

  /* Now do our stuff */
  if (xf86RegisteredPropertiesTable != NULL) {
    if (pWin->parent == NULL && xf86RegisteredPropertiesTable != NULL) {
      for (pProp = xf86RegisteredPropertiesTable[pScreen->myNum];
	   pProp != NULL && err==Success;
	   pProp = pProp->next )
	{
	  Atom prop;

	  prop = MakeAtom(pProp->name, strlen(pProp->name), TRUE);
	  err = ChangeWindowProperty(pWin,
				     prop, pProp->type,
				     pProp->format, PropModeReplace,
				     pProp->size, pProp->data,
				     FALSE
				     );
	}
      
      /* Look at err */
      ret &= (err==Success);
      
    } else {
      xf86Msg(X_ERROR, "xf86CreateRootWindow unexpectedly called with "
	      "non-root window %p (parent %p)\n",
	      (void *)pWin, (void *)pWin->parent);
      ret = FALSE;
    }
  }

#ifdef DEBUG
  ErrorF("xf86CreateRootWindow() returns %d\n", ret);
#endif
  return (ret);
}


/*
 * InitOutput --
 *	Initialize screenInfo for all actually accessible framebuffers.
 *      That includes vt-manager setup, querying all possible devices and
 *      collecting the pixmap formats.
 */

static void
PostConfigInit(void)
{
    /*
     * Install signal handler for unexpected signals
     */
    xf86Info.caughtSignal=FALSE;
    if (!xf86Info.notrapSignals) {
       signal(SIGSEGV,xf86SigHandler);
       signal(SIGILL,xf86SigHandler);
#ifdef SIGEMT
       signal(SIGEMT,xf86SigHandler);
#endif
       signal(SIGFPE,xf86SigHandler);
#ifdef SIGBUS
       signal(SIGBUS,xf86SigHandler);
#endif
#ifdef SIGSYS
       signal(SIGSYS,xf86SigHandler);
#endif
#ifdef SIGXCPU
       signal(SIGXCPU,xf86SigHandler);
#endif
#ifdef SIGXFSZ
       signal(SIGXFSZ,xf86SigHandler);
#endif
#ifdef MEMDEBUG
       signal(SIGUSR2,xf86SigMemDebug);
#endif
    }

    xf86OSPMClose = xf86OSPMOpen();
    
    /* Run an external VT Init program if specified in the config file */
    xf86RunVtInit();

    /* Do this after XF86Config is read (it's normally in OsInit()) */
    OsInitColors();
}

void
InitOutput(ScreenInfo *pScreenInfo, int argc, char **argv)
{
  int                    i, j, k, scr_index;
  static unsigned long   generation = 0;
#ifdef XFree86LOADER
  char                   **modulelist;
  pointer                *optionlist;
#endif
  screenLayoutPtr	 layout;
  Pix24Flags		 screenpix24, pix24;
  MessageType		 pix24From = X_DEFAULT;
  Bool			 pix24Fail = FALSE;
  Bool			 autoconfig = FALSE;
  
#ifdef __UNIXOS2__
  os2ServerVideoAccess();  /* See if we have access to the screen before doing anything */
#endif

  xf86Initialising = TRUE;

  /* Do this early? */
  if (generation != serverGeneration) {
      xf86ScreenIndex = AllocateScreenPrivateIndex();
      xf86CreateRootWindowIndex = AllocateScreenPrivateIndex();
      xf86PixmapIndex = AllocatePixmapPrivateIndex();
      generation = serverGeneration;
  }

  if (serverGeneration == 1) {

    pScreenInfo->numScreens = 0;

    if ((xf86ServerName = strrchr(argv[0], '/')) != 0)
      xf86ServerName++;
    else
      xf86ServerName = argv[0];

#ifdef DO_CHECK_BETA
    xf86CheckBeta(extraDays, expKey);
#endif

    xf86PrintBanner();
    xf86PrintMarkers();
    if (xf86LogFile)  {
	time_t t;
	const char *ct;
	t = time(NULL);
	ct = ctime(&t);
	xf86MsgVerb(xf86LogFileFrom, 0, "Log file: \"%s\", Time: %s",
		    xf86LogFile, ct);
    }

    /* Read and parse the config file */
    if (!xf86DoProbe && !xf86DoConfigure) {
      switch (xf86HandleConfigFile(FALSE)) {
      case CONFIG_OK:
	break;
      case CONFIG_PARSE_ERROR:
	xf86Msg(X_ERROR, "Error parsing the config file\n");
	return;
      case CONFIG_NOFILE:
	autoconfig = TRUE;
	break;
      }
    }

    if (!autoconfig)
	PostConfigInit();

#ifdef XFree86LOADER
    /* Initialise the loader */
    LoaderInit();

    /* Tell the loader the default module search path */
    LoaderSetPath(xf86ModulePath);

#ifdef TESTING
    {
	char **list, **l;
	const char *subdirs[] = {
		"drivers",
		NULL
	};
	const char *patlist[] = {
		"(.*)_drv\\.so",
		"(.*)_drv\\.o",
		NULL
	};
	ErrorF("Getting module listing...\n");
	list = LoaderListDirs(NULL, NULL);
	if (list)
	    for (l = list; *l; l++)
		ErrorF("module: %s\n", *l);
	LoaderFreeDirList(list);
	ErrorF("Getting video driver listing...\n");
	list = LoaderListDirs(subdirs, NULL);
	if (list)
	    for (l = list; *l; l++)
		ErrorF("video driver: %s\n", *l);
	LoaderFreeDirList(list);
	ErrorF("Getting driver listing...\n");
	list = LoaderListDirs(NULL, patlist);
	if (list)
	    for (l = list; *l; l++)
		ErrorF("video driver: %s\n", *l);
	LoaderFreeDirList(list);
    }
#endif
	
    /* Force load mandatory base modules */
    if (!xf86LoadModules(baseModules, NULL))
	FatalError("Unable to load required base modules, Exiting...\n");
    
#endif

    xf86OpenConsole();

    /* Enable full I/O access */
    xf86EnableIO();

    /* Do a general bus probe.  This will be a PCI probe for x86 platforms */
    xf86BusProbe();

    if (xf86DoProbe)
	DoProbe();

    if (xf86DoConfigure)
	DoConfigure();

    if (autoconfig) {
	if (!xf86AutoConfig()) {
	    xf86Msg(X_ERROR, "Auto configuration failed\n");
	    return;
	}
	PostConfigInit();
    }

    /* Initialise the resource broker */
    xf86ResourceBrokerInit();

#ifdef XFree86LOADER
    /* Load all modules specified explicitly in the config file */
    if ((modulelist = xf86ModulelistFromConfig(&optionlist))) {
      xf86LoadModules(modulelist, optionlist);
      xfree(modulelist);
      xfree(optionlist);
    }

    /* Load all driver modules specified in the config file */
    if ((modulelist = xf86DriverlistFromConfig())) {
      xf86LoadModules(modulelist, NULL);
      xfree(modulelist);
    }

#ifdef USE_DEPRECATED_KEYBOARD_DRIVER
    /* Setup the builtin input drivers */
    xf86AddInputDriver(&xf86KEYBOARD, NULL, 0);
#endif
    /* Load all input driver modules specified in the config file. */
    if ((modulelist = xf86InputDriverlistFromConfig())) {
      xf86LoadModules(modulelist, NULL);
      xfree(modulelist);
    }

    /*
     * It is expected that xf86AddDriver()/xf86AddInputDriver will be
     * called for each driver as it is loaded.  Those functions save the
     * module pointers for drivers.
     * XXX Nothing keeps track of them for other modules.
     */
    /* XXX What do we do if not all of these could be loaded? */
#endif

    /*
     * At this point, xf86DriverList[] is all filled in with entries for
     * each of the drivers to try and xf86NumDrivers has the number of
     * drivers.  If there are none, return now.
     */

    if (xf86NumDrivers == 0) {
      xf86Msg(X_ERROR, "No drivers available.\n");
      return;
    }

    /*
     * Call each of the Identify functions.  The Identify functions print
     * out some identifying information, and anything else that might be
     * needed at this early stage.
     */

    for (i = 0; i < xf86NumDrivers; i++)
      /* The Identify function is mandatory, but if it isn't there continue */
      if (xf86DriverList[i]->Identify != NULL)
	xf86DriverList[i]->Identify(0);
      else {
        xf86Msg(X_WARNING, "Driver `%s' has no Identify function\n",
	       xf86DriverList[i]->driverName ? xf86DriverList[i]->driverName
					     : "noname");
      }

    /*
     * Locate bus slot that had register IO enabled at server startup
     */

    xf86AccessInit();
    xf86FindPrimaryDevice();

    /*
     * Now call each of the Probe functions.  Each successful probe will
     * result in an extra entry added to the xf86Screens[] list for each
     * instance of the hardware found.
     */

    for (i = 0; i < xf86NumDrivers; i++) {
      if (xf86DriverList[i]->Probe != NULL)
	xf86DriverList[i]->Probe(xf86DriverList[i], PROBE_DEFAULT);
      else {
        xf86MsgVerb(X_WARNING, 0,
		"Driver `%s' has no Probe function (ignoring)\n",
		xf86DriverList[i]->driverName ? xf86DriverList[i]->driverName
					     : "noname");
      }
      xf86SetPciVideo(NULL,NONE);
    }

    /*
     * If nothing was detected, return now.
     */

    if (xf86NumScreens == 0) {
      xf86Msg(X_ERROR, "No devices detected.\n");
      return;
    }

    /*
     * Match up the screens found by the probes against those specified
     * in the config file.  Remove the ones that won't be used.  Sort
     * them in the order specified.
     */

    /*
     * What is the best way to do this?
     *
     * For now, go through the screens allocated by the probes, and
     * look for screen config entry which refers to the same device
     * section as picked out by the probe.
     *
     */

    for (i = 0; i < xf86NumScreens; i++) {
      for (layout = xf86ConfigLayout.screens; layout->screen != NULL;
	   layout++) {
	  Bool found = FALSE;
	  for (j = 0; j < xf86Screens[i]->numEntities; j++) {
	
	      GDevPtr dev =
		xf86GetDevFromEntity(xf86Screens[i]->entityList[j],
				     xf86Screens[i]->entityInstanceList[j]);

	      if (dev == layout->screen->device) {
		  /* A match has been found */
		  xf86Screens[i]->confScreen = layout->screen;
		  found = TRUE;
		  break;
	      }
	  }
	  if (found) break;
      }
      if (layout->screen == NULL) {
	/* No match found */
	xf86Msg(X_ERROR,
	    "Screen %d deleted because of no matching config section.\n", i);
        xf86DeleteScreen(i--, 0);
      }
    }

    /*
     * If no screens left, return now.
     */

    if (xf86NumScreens == 0) {
      xf86Msg(X_ERROR,
	      "Device(s) detected, but none match those in the config file.\n");
      return;
    }

    xf86PostProbe();
    xf86EntityInit();

    /*
     * Sort the drivers to match the requested ording.  Using a slow
     * bubble sort.
     */
    for (j = 0; j < xf86NumScreens - 1; j++) {
	for (i = 0; i < xf86NumScreens - j - 1; i++) {
	    if (xf86Screens[i + 1]->confScreen->screennum <
		xf86Screens[i]->confScreen->screennum) {
		ScrnInfoPtr tmpScrn = xf86Screens[i + 1];
		xf86Screens[i + 1] = xf86Screens[i];
		xf86Screens[i] = tmpScrn;
	    }
	}
    }
    /* Fix up the indexes */
    for (i = 0; i < xf86NumScreens; i++) {
	xf86Screens[i]->scrnIndex = i;
    }

    /*
     * Call the driver's PreInit()'s to complete initialisation for the first
     * generation.
     */
    
    for (i = 0; i < xf86NumScreens; i++) {
	xf86EnableAccess(xf86Screens[i]);
	if (xf86Screens[i]->PreInit &&
	    xf86Screens[i]->PreInit(xf86Screens[i], 0))
	    xf86Screens[i]->configured = TRUE;
    }
    for (i = 0; i < xf86NumScreens; i++)
	if (!xf86Screens[i]->configured)
	    xf86DeleteScreen(i--, 0);
    
    /*
     * If no screens left, return now.
     */

    if (xf86NumScreens == 0) {
      xf86Msg(X_ERROR,
	      "Screen(s) found, but none have a usable configuration.\n");
      return;
    }

    /* This could be moved into a separate function */

    /*
     * Check that all screens have initialised the mandatory function
     * entry points.  Delete those which have not.
     */

#define WARN_SCREEN(func) \
    xf86Msg(X_ERROR, "Driver `%s' has no %s function, deleting.\n", \
	   xf86Screens[i]->name, (warned++, func))

    for (i = 0; i < xf86NumScreens; i++) {
      int warned = 0;
      if (xf86Screens[i]->name == NULL) {
	xf86Screens[i]->name = xnfalloc(strlen("screen") + 1 + 1);
	if (i < 10)
	  sprintf(xf86Screens[i]->name, "screen%c", i + '0');
	else
	  sprintf(xf86Screens[i]->name, "screen%c", i - 10 + 'A');
	xf86MsgVerb(X_WARNING, 0,
		    "Screen driver %d has no name set, using `%s'.\n",
		    i, xf86Screens[i]->name);
      }
      if (xf86Screens[i]->ScreenInit == NULL)
	WARN_SCREEN("ScreenInit");
      if (xf86Screens[i]->EnterVT == NULL)
	WARN_SCREEN("EnterVT");
      if (xf86Screens[i]->LeaveVT == NULL)
	WARN_SCREEN("LeaveVT");
      if (warned)
	xf86DeleteScreen(i--, 0);
    }

    /*
     * If no screens left, return now.
     */

    if (xf86NumScreens == 0) {
      xf86Msg(X_ERROR, "Screen(s) found, but drivers were unusable.\n");
      return;
    }

    /* XXX Should this be before or after loading dependent modules? */
    if (xf86ProbeOnly)
    {
      OsCleanup(TRUE);
      AbortDDX();
      fflush(stderr);
      exit(0);
    }

#ifdef XFree86LOADER
    /* Remove (unload) drivers that are not required */
    for (i = 0; i < xf86NumDrivers; i++)
	if (xf86DriverList[i] && xf86DriverList[i]->refCount <= 0)
	    xf86DeleteDriver(i);
#endif

    /*
     * At this stage we know how many screens there are.
     */

    for (i = 0; i < xf86NumScreens; i++)
      xf86InitViewport(xf86Screens[i]);

    /*
     * Collect all pixmap formats and check for conflicts at the display
     * level.  Should we die here?  Or just delete the offending screens?
     * Also, should this be done for -probeonly?
     */
    screenpix24 = Pix24DontCare;
    for (i = 0; i < xf86NumScreens; i++) {
	if (xf86Screens[i]->imageByteOrder !=
	    xf86Screens[0]->imageByteOrder)
	    FatalError("Inconsistent display bitmapBitOrder.  Exiting\n");
	if (xf86Screens[i]->bitmapScanlinePad !=
	    xf86Screens[0]->bitmapScanlinePad)
	    FatalError("Inconsistent display bitmapScanlinePad.  Exiting\n");
	if (xf86Screens[i]->bitmapScanlineUnit !=
	    xf86Screens[0]->bitmapScanlineUnit)
	    FatalError("Inconsistent display bitmapScanlineUnit.  Exiting\n");
	if (xf86Screens[i]->bitmapBitOrder !=
	    xf86Screens[0]->bitmapBitOrder)
	    FatalError("Inconsistent display bitmapBitOrder.  Exiting\n");

	/* Determine the depth 24 pixmap format the screens would like */
	if (xf86Screens[i]->pixmap24 != Pix24DontCare) {
	    if (screenpix24 == Pix24DontCare)
		screenpix24 = xf86Screens[i]->pixmap24;
	    else if (screenpix24 != xf86Screens[i]->pixmap24)
		FatalError("Inconsistent depth 24 pixmap format.  Exiting\n");
	}
    }
    /* check if screenpix24 is consistent with the config/cmdline */
    if (xf86Info.pixmap24 != Pix24DontCare) {
	pix24 = xf86Info.pixmap24;
	pix24From = xf86Info.pix24From;
	if (screenpix24 != Pix24DontCare && screenpix24 != xf86Info.pixmap24)
	    pix24Fail = TRUE;
    } else if (screenpix24 != Pix24DontCare) {
	pix24 = screenpix24;
	pix24From = X_PROBED;
    } else
	pix24 = Pix24Use32;

    if (pix24Fail)
	FatalError("Screen(s) can't use the required depth 24 pixmap format"
		   " (%d).  Exiting\n", PIX24TOBPP(pix24));

    /* Initialise the depth 24 format */
    for (j = 0; j < numFormats && formats[j].depth != 24; j++)
	;
    formats[j].bitsPerPixel = PIX24TOBPP(pix24);

    /* Collect additional formats */
    for (i = 0; i < xf86NumScreens; i++) {
	for (j = 0; j < xf86Screens[i]->numFormats; j++) {
	    for (k = 0; ; k++) {
		if (k >= numFormats) {
		    if (k >= MAXFORMATS)
			FatalError("Too many pixmap formats!  Exiting\n");
		    formats[k] = xf86Screens[i]->formats[j];
		    numFormats++;
		    break;
		}
		if (formats[k].depth == xf86Screens[i]->formats[j].depth) {
		    if ((formats[k].bitsPerPixel ==
			 xf86Screens[i]->formats[j].bitsPerPixel) &&
		        (formats[k].scanlinePad ==
			 xf86Screens[i]->formats[j].scanlinePad))
			break;
		    FatalError("Inconsistent pixmap format for depth %d."
			       "  Exiting\n", formats[k].depth);
		}
	    }
	}
    }
    formatsDone = TRUE;

    if (xf86Info.vtno >= 0 ) {
#define VT_ATOM_NAME         "XFree86_VT"
      Atom VTAtom=-1;
      CARD32  *VT = NULL;
      int  ret;

      /* This memory needs to stay available until the screen has been
	 initialized, and we can create the property for real.
      */
      if ( (VT = xalloc(sizeof(CARD32)))==NULL ) {
	FatalError("Unable to make VT property - out of memory. Exiting...\n");
      }
      *VT = xf86Info.vtno;
    
      VTAtom = MakeAtom(VT_ATOM_NAME, sizeof(VT_ATOM_NAME), TRUE);

      for (i = 0, ret = Success; i < xf86NumScreens && ret == Success; i++) {
	ret = xf86RegisterRootWindowProperty(xf86Screens[i]->scrnIndex,
					     VTAtom, XA_INTEGER, 32, 
					     1, VT );
	if (ret != Success)
	  xf86DrvMsg(xf86Screens[i]->scrnIndex, X_WARNING,
		     "Failed to register VT property\n");
      }
    }

    /* If a screen uses depth 24, show what the pixmap format is */
    for (i = 0; i < xf86NumScreens; i++) {
	if (xf86Screens[i]->depth == 24) {
	    xf86Msg(pix24From, "Depth 24 pixmap format is %d bpp\n",
		    PIX24TOBPP(pix24));
	    break;
	}
    }

#if BITMAP_SCANLINE_UNIT == 64
    /*
     * cfb24 doesn't currently work on architectures with a 64 bit
     * BITMAP_SCANLINE_UNIT, so check for 24 bit pixel size for pixmaps
     * or framebuffers.
     */
    {
	Bool usesCfb24 = FALSE;

	if (PIX24TOBPP(pix24) == 24)
	    usesCfb24 = TRUE;
	for (i = 0; i < xf86NumScreens; i++)
	    if (xf86Screens[i]->bitsPerPixel == 24)
		usesCfb24 = TRUE;
	if (usesCfb24) {
	    FatalError("24-bit pixel size is not supported on systems with"
			" 64-bit scanlines.\n");
	}
    }
#endif

#ifdef XKB
    xf86InitXkb();
#endif
    /* set up the proper access funcs */
    xf86PostPreInit();

    AddCallback(&ServerGrabCallback, xf86GrabServerCallback, NULL);
    
  } else {
    /*
     * serverGeneration != 1; some OSs have to do things here, too.
     */
    xf86OpenConsole();

    /*
      should we reopen it here? We need to deal with an already opened
      device. We could leave this to the OS layer. For now we simply
      close it here
    */
    if (xf86OSPMClose)
        xf86OSPMClose();
    if ((xf86OSPMClose = xf86OSPMOpen()) != NULL)
	xf86MsgVerb(X_INFO, 3, "APM registered successfully\n");

    /* Make sure full I/O access is enabled */
    xf86EnableIO();
  }

#if 0
  /*
   * Install signal handler for unexpected signals
   */
  xf86Info.caughtSignal=FALSE;
  if (!xf86Info.notrapSignals)
  {
     signal(SIGSEGV,xf86SigHandler);
     signal(SIGILL,xf86SigHandler);
#ifdef SIGEMT
     signal(SIGEMT,xf86SigHandler);
#endif
     signal(SIGFPE,xf86SigHandler);
#ifdef SIGBUS
     signal(SIGBUS,xf86SigHandler);
#endif
#ifdef SIGSYS
     signal(SIGSYS,xf86SigHandler);
#endif
#ifdef SIGXCPU
     signal(SIGXCPU,xf86SigHandler);
#endif
#ifdef SIGXFSZ
     signal(SIGXFSZ,xf86SigHandler);
#endif
  }
#endif

  /*
   * Use the previously collected parts to setup pScreenInfo
   */

  pScreenInfo->imageByteOrder = xf86Screens[0]->imageByteOrder;
  pScreenInfo->bitmapScanlinePad = xf86Screens[0]->bitmapScanlinePad;
  pScreenInfo->bitmapScanlineUnit = xf86Screens[0]->bitmapScanlineUnit;
  pScreenInfo->bitmapBitOrder = xf86Screens[0]->bitmapBitOrder;
  pScreenInfo->numPixmapFormats = numFormats;
  for (i = 0; i < numFormats; i++)
    pScreenInfo->formats[i] = formats[i];

  /* Make sure the server's VT is active */
    
  if (serverGeneration != 1) {
    xf86Resetting = TRUE;
    /* All screens are in the same state, so just check the first */
    if (!xf86Screens[0]->vtSema) {
#ifdef HAS_USL_VTS
      ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ);
#endif
      xf86AccessEnter();
      xf86EnterServerState(SETUP);
    } 
  }
#ifdef SCO
  else {
    /*
     * Under SCO we must ack that we got the console at startup,
     * I think this is the safest way to assure it.
     */
    static int once = 1;
    if (once) {
      once = 0;
      if (ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ) < 0)
        xf86Msg(X_WARNING, "VT_ACKACQ failed");
    }
  }
#endif /* SCO */

  for (i = 0; i < xf86NumScreens; i++) {    
   	xf86EnableAccess(xf86Screens[i]);
	/*
	 * Almost everything uses these defaults, and many of those that
	 * don't, will wrap them.
	 */
	xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess;
	xf86Screens[i]->SetDGAMode = xf86SetDGAMode;
	xf86Screens[i]->DPMSSet = NULL;
	xf86Screens[i]->LoadPalette = NULL; 
	xf86Screens[i]->SetOverscan = NULL;
	xf86Screens[i]->RRFunc = NULL;
	scr_index = AddScreen(xf86Screens[i]->ScreenInit, argc, argv);
      if (scr_index == i) {
	/*
	 * Hook in our ScrnInfoRec, and initialise some other pScreen
	 * fields.
	 */
	screenInfo.screens[scr_index]->devPrivates[xf86ScreenIndex].ptr
	  = (pointer)xf86Screens[i];
	xf86Screens[i]->pScreen = screenInfo.screens[scr_index];
	/* The driver should set this, but make sure it is set anyway */
	xf86Screens[i]->vtSema = TRUE;
      } else {
	/* This shouldn't normally happen */
	FatalError("AddScreen/ScreenInit failed for driver %d\n", i);
      }

#ifdef DEBUG
      ErrorF("InitOutput - xf86Screens[%d]->pScreen = %p\n",
	     i, xf86Screens[i]->pScreen );
      ErrorF("xf86Screens[%d]->pScreen->CreateWindow = %p\n",
	     i, xf86Screens[i]->pScreen->CreateWindow );
#endif

      screenInfo.screens[scr_index]->devPrivates[xf86CreateRootWindowIndex].ptr
	= (void*)(xf86Screens[i]->pScreen->CreateWindow);
      xf86Screens[i]->pScreen->CreateWindow = xf86CreateRootWindow;

#ifdef RENDER
    if (PictureGetSubpixelOrder (xf86Screens[i]->pScreen) == SubPixelUnknown)
    {
	xf86MonPtr DDC = (xf86MonPtr)(xf86Screens[i]->monitor->DDC); 
	PictureSetSubpixelOrder (xf86Screens[i]->pScreen,
				 DDC ?
				 (DDC->features.input_type ?
				  SubPixelHorizontalRGB : SubPixelNone) :
				 SubPixelUnknown);
    }
#endif
#ifdef RANDR
    if (!xf86Info.disableRandR)
	xf86RandRInit (screenInfo.screens[scr_index]);
    xf86Msg(xf86Info.randRFrom, "RandR %s\n",
	    xf86Info.disableRandR ? "disabled" : "enabled");
#endif
#ifdef NOT_USED
      /*
       * Here we have to let the driver getting access of the VT. Note that
       * this doesn't mean that the graphics board may access automatically
       * the monitor. If the monitor is shared this is done in xf86CrossScreen!
       */
      if (!xf86Info.sharedMonitor) (xf86Screens[i]->EnterLeaveMonitor)(ENTER);
#endif
  }

#ifdef XFree86LOADER
    if ((serverGeneration == 1) && LoaderCheckUnresolved(LD_RESOLV_IFDONE)) {
	/* For now, just a warning */
	xf86Msg(X_WARNING, "Some symbols could not be resolved!\n");
    }
#endif

  xf86PostScreenInit();

  xf86InitOrigins();

  xf86Resetting = FALSE;
  xf86Initialising = FALSE;

  RegisterBlockAndWakeupHandlers((BlockHandlerProcPtr)NoopDDA, xf86Wakeup,
				 NULL);
}


static InputDriverPtr
MatchInput(IDevPtr pDev)
{
    int i;

    for (i = 0; i < xf86NumInputDrivers; i++) {
	if (xf86InputDriverList[i] && xf86InputDriverList[i]->driverName &&
	    xf86NameCmp(pDev->driver, xf86InputDriverList[i]->driverName) == 0)
	    return xf86InputDriverList[i];
    }
    return NULL;
}


/*
 * InitInput --
 *      Initialize all supported input devices.
 */

void
InitInput(argc, argv)
     int     	  argc;
     char    	  **argv;
{
    IDevPtr pDev;
    InputDriverPtr pDrv;
    InputInfoPtr pInfo;
    static InputInfoPtr coreKeyboard = NULL, corePointer = NULL;

    xf86Info.vtRequestsPending = FALSE;
    xf86Info.inputPending = FALSE;
#ifdef XTESTEXT1
    xtest_command_key = KEY_Begin + MIN_KEYCODE;
#endif /* XTESTEXT1 */

    if (serverGeneration == 1) {
	/* Call the PreInit function for each input device instance. */
	for (pDev = xf86ConfigLayout.inputs; pDev && pDev->identifier; pDev++) {
#ifdef USE_DEPRECATED_KEYBOARD_DRIVER
	    /* XXX The keyboard driver is a special case for now. */
	    if (!xf86NameCmp(pDev->driver, "keyboard")) {
		xf86MsgVerb(X_WARNING, 0, "*** WARNING the legacy keyboard driver \"keyboard\" is deprecated\n");
		xf86MsgVerb(X_WARNING, 0, "*** and will be removed in the next release of the Xorg server.\n");
		xf86MsgVerb(X_WARNING, 0, "*** Please consider using the the new \"kbd\" driver for \"%s\".\n",
			pDev->identifier);

		continue;
	    }
#else
	    if (!xf86NameCmp(pDev->driver, "keyboard")) {
		xf86MsgVerb(X_ERROR, 0, "*** ERROR the legacy keyboard driver \"keyboard\" is deprecated\n");
		xf86MsgVerb(X_ERROR, 0, "*** and has not been compiled into this X server.  It will be removed\n");
		xf86MsgVerb(X_ERROR, 0, "*** in the next release of the Xorg server.\n");
		xf86MsgVerb(X_ERROR, 0, "*** Please consider using the the new \"kbd\" driver for \"%s\".\n",
			pDev->identifier);

		continue;
	    }
#endif
	    if ((pDrv = MatchInput(pDev)) == NULL) {
		xf86Msg(X_ERROR, "No Input driver matching `%s'\n", pDev->driver);
		/* XXX For now, just continue. */
		continue;
	    }
	    if (!pDrv->PreInit) {
		xf86MsgVerb(X_WARNING, 0,
		    "Input driver `%s' has no PreInit function (ignoring)\n",
		    pDrv->driverName);
		continue;
	    }
	    pInfo = pDrv->PreInit(pDrv, pDev, 0);
	    if (!pInfo) {
		xf86Msg(X_ERROR, "PreInit returned NULL for \"%s\"\n",
			pDev->identifier);
		continue;
	    } else if (!(pInfo->flags & XI86_CONFIGURED)) {
		xf86Msg(X_ERROR, "PreInit failed for input device \"%s\"\n",
			pDev->identifier);
		xf86DeleteInput(pInfo, 0);
		continue;
	    }
	    if (pInfo->flags & XI86_CORE_KEYBOARD) {
		if (coreKeyboard) {
		    xf86Msg(X_ERROR,
		      "Attempt to register more than one core keyboard (%s)\n",
		      pInfo->name);
		    pInfo->flags &= ~XI86_CORE_KEYBOARD;
		} else {
		    if (!(pInfo->flags & XI86_KEYBOARD_CAPABLE)) {
			/* XXX just a warning for now */
			xf86Msg(X_WARNING,
			    "%s: does not have core keyboard capabilities\n",
			    pInfo->name);
		    }
		    coreKeyboard = pInfo;
		}
	    }
	    if (pInfo->flags & XI86_CORE_POINTER) {
		if (corePointer) {
		    xf86Msg(X_ERROR,
			"Attempt to register more than one core pointer (%s)\n",
			pInfo->name);
		    pInfo->flags &= ~XI86_CORE_POINTER;
		} else {
		    if (!(pInfo->flags & XI86_POINTER_CAPABLE)) {
			/* XXX just a warning for now */
			xf86Msg(X_WARNING,
			    "%s: does not have core pointer capabilities\n",
			    pInfo->name);
		    }
		    corePointer = pInfo;
		}
	    }
	}
	if (!corePointer) {
	    xf86Msg(X_WARNING, "No core pointer registered\n");
	    /* XXX register a dummy core pointer */
	}
#ifdef NEW_KBD
	if (!coreKeyboard) {
	    xf86Msg(X_WARNING, "No core keyboard registered\n");
	    /* XXX register a dummy core keyboard */
	}
#endif
    }

    /* Initialise all input devices. */
    pInfo = xf86InputDevs;
    while (pInfo) {
	xf86ActivateDevice(pInfo);
	pInfo = pInfo->next;
    }

    if (coreKeyboard) {
      xf86Info.pKeyboard = coreKeyboard->dev;
      xf86Info.kbdEvents = NULL; /* to prevent the internal keybord driver usage*/
    }
    else {
#ifdef USE_DEPRECATED_KEYBOARD_DRIVER
      /* Only set this if we're allowing the old driver. */
      xf86Info.pKeyboard = AddInputDevice(xf86Info.kbdProc, TRUE);
#endif
    }
    if (corePointer)
	xf86Info.pMouse = corePointer->dev;
    if (xf86Info.pKeyboard)
      RegisterKeyboardDevice(xf86Info.pKeyboard); 

  miRegisterPointerDevice(screenInfo.screens[0], xf86Info.pMouse);
#ifdef XINPUT
  xf86eqInit ((DevicePtr)xf86Info.pKeyboard, (DevicePtr)xf86Info.pMouse);
#else
  mieqInit ((DevicePtr)xf86Info.pKeyboard, (DevicePtr)xf86Info.pMouse);
#endif
}

#ifndef SET_STDERR_NONBLOCKING
#define SET_STDERR_NONBLOCKING 1
#endif

/*
 * OsVendorInit --
 *      OS/Vendor-specific initialisations.  Called from OsInit(), which
 *      is called by dix before establishing the well known sockets.
 */
 
void
OsVendorInit()
{
  static Bool beenHere = FALSE;

  /* xf86WrapperInit() is called directly from OsInit() */
#ifdef SIGCHLD
  signal(SIGCHLD, SIG_DFL);	/* Need to wait for child processes */
#endif
  OsDelayInitColors = TRUE;
#ifdef XFree86LOADER
  loadableFonts = TRUE;
#endif

  if (!beenHere)
    xf86LogInit();

#if SET_STDERR_NONBLOCKING
        /* Set stderr to non-blocking. */
#ifndef O_NONBLOCK
#if defined(FNDELAY)
#define O_NONBLOCK FNDELAY
#elif defined(O_NDELAY)
#define O_NONBLOCK O_NDELAY
#endif
#endif

#ifdef O_NONBLOCK
  if (!beenHere) {
#if !defined(__EMX__)
    if (geteuid() == 0 && getuid() != geteuid())
#endif
    {
      int status;

      status = fcntl(fileno(stderr), F_GETFL, 0);
      if (status != -1) {
	fcntl(fileno(stderr), F_SETFL, status | O_NONBLOCK);
      }
    }
  }
#endif
#endif

  beenHere = TRUE;
}

/*
 * ddxGiveUp --
 *      Device dependent cleanup. Called by by dix before normal server death.
 *      For SYSV386 we must switch the terminal back to normal mode. No error-
 *      checking here, since there should be restored as much as possible.
 */

void
ddxGiveUp()
{
    int i;

    if (xf86OSPMClose)
	xf86OSPMClose();
    xf86OSPMClose = NULL;

    xf86AccessLeaveState();

    for (i = 0; i < xf86NumScreens; i++) {
	/*
	 * zero all access functions to
	 * trap calls when switched away.
	 */
	xf86Screens[i]->vtSema = FALSE;
	xf86Screens[i]->access = NULL;
	xf86Screens[i]->busAccess = NULL;
    }

#ifdef USE_XF86_SERVERLOCK
    xf86UnlockServer();
#endif
#ifdef XFreeXDGA
    DGAShutdown();
#endif

    xf86CloseConsole();

    xf86CloseLog();

    /* If an unexpected signal was caught, dump a core for debugging */
    if (xf86Info.caughtSignal)
	abort();
}



/*
 * AbortDDX --
 *      DDX - specific abort routine.  Called by AbortServer(). The attempt is
 *      made to restore all original setting of the displays. Also all devices
 *      are closed.
 */

void
AbortDDX()
{
  int i;

  /*
   * try to deinitialize all input devices
   */
  if (xf86Info.pKeyboard)
    (xf86Info.kbdProc)(xf86Info.pKeyboard, DEVICE_CLOSE);

  /*
   * try to restore the original video state
   */
#ifdef HAS_USL_VTS
  /* Need the sleep when starting X from within another X session */
  sleep(1);
#endif
  if (xf86Screens) {
      if (xf86Screens[0]->vtSema)
	  xf86EnterServerState(SETUP);
      for (i = 0; i < xf86NumScreens; i++)
	  if (xf86Screens[i]->vtSema) {
	      /*
	       * if we are aborting before ScreenInit() has finished
	       * we might not have been wrapped yet. Therefore enable
	       * screen explicitely.
	       */
	      xf86EnableAccess(xf86Screens[i]);
#ifdef DPMSExtension
	      if (xf86Screens[i]->DPMSSet)
		  xf86Screens[i]->DPMSSet(xf86Screens[i],DPMSModeOn,0);
#endif
	      (xf86Screens[i]->LeaveVT)(i, 0);
	  }
  }
  
  xf86AccessLeave();
  
  /*
   * This is needed for an abnormal server exit, since the normal exit stuff
   * MUST also be performed (i.e. the vt must be left in a defined state)
   */
  ddxGiveUp();
}

void
OsVendorFatalError()
{
#ifdef VENDORSUPPORT
    ErrorF("\nPlease refer to your Operating System Vendor support pages\n"
	   "at %s for support on this crash.\n",VENDORSUPPORT);
#else
    ErrorF("\nPlease consult the "XVENDORNAME" support \n"
	   "\t at "__VENDORDWEBSUPPORT__"\n for help. \n");
#endif
    if (xf86LogFile && xf86LogFileWasOpened)
	ErrorF("Please also check the log file at \"%s\" for additional "
              "information.\n", xf86LogFile);
    ErrorF("\n");
}

int
xf86SetVerbosity(int verb)
{
    int save = xf86Verbose;

    xf86Verbose = verb;
    LogSetParameter(XLOG_VERBOSITY, verb);
    return save;
}

int
xf86SetLogVerbosity(int verb)
{
    int save = xf86LogVerbose;

    xf86LogVerbose = verb;
    LogSetParameter(XLOG_FILE_VERBOSITY, verb);
    return save;
}

/*
 * ddxProcessArgument --
 *	Process device-dependent command line args. Returns 0 if argument is
 *      not device dependent, otherwise Count of number of elements of argv
 *      that are part of a device dependent commandline option.
 *
 */



/* ARGSUSED */
int
ddxProcessArgument(int argc, char **argv, int i)
{
  /*
   * Note: can't use xalloc/xfree here because OsInit() hasn't been called
   * yet.  Use malloc/free instead.
   */

  /* First the options that are only allowed for root */
  if (getuid() == 0)
  {
    if (!strcmp(argv[i], "-modulepath"))
    {
      char *mp;
      if (!argv[i + 1])
	return 0;
      mp = malloc(strlen(argv[i + 1]) + 1);
      if (!mp)
	FatalError("Can't allocate memory for ModulePath\n");
      strcpy(mp, argv[i + 1]);
      xf86ModulePath = mp;
      xf86ModPathFrom = X_CMDLINE;
      return 2;
    }
    else if (!strcmp(argv[i], "-logfile"))
    {
      char *lf;
      if (!argv[i + 1])
	return 0;
      lf = malloc(strlen(argv[i + 1]) + 1);
      if (!lf)
	FatalError("Can't allocate memory for LogFile\n");
      strcpy(lf, argv[i + 1]);
      xf86LogFile = lf;
      xf86LogFileFrom = X_CMDLINE;
      return 2;
    }
  }
  if (!strcmp(argv[i], "-config") || !strcmp(argv[i], "-xf86config"))
  {
    if (!argv[i + 1])
      return 0;
    if (getuid() != 0 && !xf86PathIsSafe(argv[i + 1])) {
      FatalError("\nInvalid argument for -config\n"
	  "\tFor non-root users, the file specified with -config must be\n"
	  "\ta relative path and must not contain any \"..\" elements.\n"
	  "\tUsing default "__XCONFIGFILE__" search path.\n\n");
    }
    xf86ConfigFile = argv[i + 1];
    return 2;
  }
  if (!strcmp(argv[i],"-showunresolved"))
  {
    xf86ShowUnresolved = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-probeonly"))
  {
    xf86ProbeOnly = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-flipPixels"))
  {
    xf86FlipPixels = TRUE;
    return 1;
  }
#ifdef XF86VIDMODE
  if (!strcmp(argv[i],"-disableVidMode"))
  {
    xf86VidModeDisabled = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-allowNonLocalXvidtune"))
  {
    xf86VidModeAllowNonLocal = TRUE;
    return 1;
  }
#endif
#ifdef XF86MISC
  if (!strcmp(argv[i],"-disableModInDev"))
  {
    xf86MiscModInDevDisabled = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-allowNonLocalModInDev"))
  {
    xf86MiscModInDevAllowNonLocal = TRUE;
    return 1;
  }
#endif
  if (!strcmp(argv[i],"-allowMouseOpenFail"))
  {
    xf86AllowMouseOpenFail = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-bestRefresh"))
  {
    xf86BestRefresh = TRUE;
    return 1;
  }
  if (!strcmp(argv[i],"-ignoreABI"))
  {
#ifdef XFree86LOADER
    LoaderSetOptions(LDR_OPT_ABI_MISMATCH_NONFATAL);
#endif
    return 1;
  }
#ifdef DO_CHECK_BETA
  if (!strcmp(argv[i],"-extendExpiry"))
  {
    extraDays = atoi(argv[i + 1]);
    expKey = argv[i + 2];
    return 3;
  }
#endif
  if (!strcmp(argv[i],"-verbose"))
  {
    if (++i < argc && argv[i])
    {
      char *end;
      long val;
      val = strtol(argv[i], &end, 0);
      if (*end == '\0')
      {
	xf86SetVerbosity(val);
	return 2;
      }
    }
    xf86SetVerbosity(++xf86Verbose);
    return 1;
  }
  if (!strcmp(argv[i],"-logverbose"))
  {
    if (++i < argc && argv[i])
    {
      char *end;
      long val;
      val = strtol(argv[i], &end, 0);
      if (*end == '\0')
      {
	xf86SetLogVerbosity(val);
	return 2;
      }
    }
    xf86SetLogVerbosity(++xf86LogVerbose);
    return 1;
  }
  if (!strcmp(argv[i],"-quiet"))
  {
    xf86SetVerbosity(0);
    return 1;
  }
  if (!strcmp(argv[i],"-showconfig") || !strcmp(argv[i],"-version"))
  {
    xf86PrintBanner();
    exit(0);
  }
  /* Notice the -fp flag, but allow it to pass to the dix layer */
  if (!strcmp(argv[i], "-fp"))
  {
    xf86fpFlag = TRUE;
    return 0;
  }
  /* Notice the -co flag, but allow it to pass to the dix layer */
  if (!strcmp(argv[i], "-co"))
  {
    xf86coFlag = TRUE;
    return 0;
  }
  /* Notice the -bs flag, but allow it to pass to the dix layer */
  if (!strcmp(argv[i], "-bs"))
  {
    xf86bsDisableFlag = TRUE;
    return 0;
  }
  /* Notice the +bs flag, but allow it to pass to the dix layer */
  if (!strcmp(argv[i], "+bs"))
  {
    xf86bsEnableFlag = TRUE;
    return 0;
  }
  /* Notice the -s flag, but allow it to pass to the dix layer */
  if (!strcmp(argv[i], "-s"))
  {
    xf86sFlag = TRUE;
    return 0;
  }
  if (!strcmp(argv[i], "-bpp"))
  {
    if (++i >= argc)
      return 0;
    ErrorF("The -bpp option is no longer supported.\n"
	"\tUse -depth to set the color depth, and use -fbbpp if you really\n"
	"\tneed to force a non-default framebuffer (hardware) pixel format.\n");
    return 2;
  }
  if (!strcmp(argv[i], "-pixmap24"))
  {
    xf86Pix24 = Pix24Use24;
    return 1;
  }
  if (!strcmp(argv[i], "-pixmap32"))
  {
    xf86Pix24 = Pix24Use32;
    return 1;
  }
  if (!strcmp(argv[i], "-fbbpp"))
  {
    int bpp;
    if (++i >= argc)
      return 0;
    if (sscanf(argv[i], "%d", &bpp) == 1)
    {
      xf86FbBpp = bpp;
      return 2;
    }
    else
    {
      ErrorF("Invalid fbbpp\n");
      return 0;
    }
  }
  if (!strcmp(argv[i], "-depth"))
  {
    int depth;
    if (++i >= argc)
      return 0;
    if (sscanf(argv[i], "%d", &depth) == 1)
    {
      xf86Depth = depth;
      return 2;
    }
    else
    {
      ErrorF("Invalid depth\n");
      return 0;
    }
  }
  if (!strcmp(argv[i], "-weight"))
  {
    int red, green, blue;
    if (++i >= argc)
      return 0;
    if (sscanf(argv[i], "%1d%1d%1d", &red, &green, &blue) == 3)
    {
      xf86Weight.red = red;
      xf86Weight.green = green;
      xf86Weight.blue = blue;
      return 2;
    }
    else
    {
      ErrorF("Invalid weighting\n");
      return 0;
    }
  }
  if (!strcmp(argv[i], "-gamma")  || !strcmp(argv[i], "-rgamma") || 
      !strcmp(argv[i], "-ggamma") || !strcmp(argv[i], "-bgamma"))
  {
    double gamma;
    if (++i >= argc)
      return 0;
    if (sscanf(argv[i], "%lf", &gamma) == 1) {
       if (gamma < GAMMA_MIN || gamma > GAMMA_MAX) {
	  ErrorF("gamma out of range, only  %.2f <= gamma_value <= %.1f"
		 " is valid\n", GAMMA_MIN, GAMMA_MAX);
	  return 0;
       }
       if (!strcmp(argv[i-1], "-gamma"))
	  xf86Gamma.red = xf86Gamma.green = xf86Gamma.blue = gamma;
       else if (!strcmp(argv[i-1], "-rgamma")) xf86Gamma.red = gamma;
       else if (!strcmp(argv[i-1], "-ggamma")) xf86Gamma.green = gamma;
       else if (!strcmp(argv[i-1], "-bgamma")) xf86Gamma.blue = gamma;
       return 2;
    }
  }
  if (!strcmp(argv[i], "-layout"))
  {
    if (++i >= argc)
      return 0;
    xf86LayoutName = argv[i];
    return 2;
  }
  if (!strcmp(argv[i], "-screen"))
  {
    if (++i >= argc)
      return 0;
    xf86ScreenName = argv[i];
    return 2;
  }
  if (!strcmp(argv[i], "-pointer"))
  {
    if (++i >= argc)
      return 0;
    xf86PointerName = argv[i];
    return 2;
  }
  if (!strcmp(argv[i], "-keyboard"))
  {
    if (++i >= argc)
      return 0;
    xf86KeyboardName = argv[i];
    return 2;
  }
  if (!strcmp(argv[i], "-nosilk"))
  {
    xf86silkenMouseDisableFlag = TRUE;
    return 1;
  }
  if (!strcmp(argv[i], "-scanpci"))
  {
    DoScanPci(argc, argv, i);
  }
  if (!strcmp(argv[i], "-probe"))
  {
    xf86DoProbe = TRUE;
#if 0
    DoProbe(argc, argv, i);
#endif
    return 1;
  }
  if (!strcmp(argv[i], "-configure"))
  {
    if (getuid() != 0) {
	ErrorF("The '-configure' option can only be used by root.\n");
	exit(1);
    }
    xf86DoConfigure = TRUE;
    xf86AllowMouseOpenFail = TRUE;
    return 1;
  }
  /* OS-specific processing */
  return xf86ProcessArgument(argc, argv, i);
}

/* ddxInitGlobals - called by |InitGlobals| from os/util.c */
void ddxInitGlobals(void)
{
}

/*
 * ddxUseMsg --
 *	Print out correct use of device dependent commandline options.
 *      Maybe the user now knows what really to do ...
 */

void
ddxUseMsg()
{
  ErrorF("\n");
  ErrorF("\n");
  ErrorF("Device Dependent Usage\n");
  if (getuid() == 0)
  {
    ErrorF("-modulepath paths      specify the module search path\n");
    ErrorF("-logfile file          specify a log file name\n");
    ErrorF("-configure             probe for devices and write an "__XCONFIGFILE__"\n");
  }
  else
  {
    ErrorF("-config file       specify a configuration file, relative to the\n");
    ErrorF("                       "__XCONFIGFILE__" search path, only root can use absolute\n");
  }
  ErrorF("-probeonly             probe for devices, then exit\n");
  ErrorF("-scanpci               execute the scanpci module and exit\n");
  ErrorF("-verbose [n]           verbose startup messages\n");
  ErrorF("-logverbose [n]        verbose log messages\n");
  ErrorF("-quiet                 minimal startup messages\n");
  ErrorF("-pixmap24              use 24bpp pixmaps for depth 24\n");
  ErrorF("-pixmap32              use 32bpp pixmaps for depth 24\n");
  ErrorF("-fbbpp n               set bpp for the framebuffer. Default: 8\n");
  ErrorF("-depth n               set colour depth. Default: 8\n");
  ErrorF("-gamma f               set gamma value (0.1 < f < 10.0) Default: 1.0\n");
  ErrorF("-rgamma f              set gamma value for red phase\n");
  ErrorF("-ggamma f              set gamma value for green phase\n");
  ErrorF("-bgamma f              set gamma value for blue phase\n");
  ErrorF("-weight nnn            set RGB weighting at 16 bpp.  Default: 565\n");
  ErrorF("-layout name           specify the ServerLayout section name\n");
  ErrorF("-screen name           specify the Screen section name\n");
  ErrorF("-keyboard name         specify the core keyboard InputDevice name\n");
  ErrorF("-pointer name          specify the core pointer InputDevice name\n");
  ErrorF("-nosilk                disable Silken Mouse\n");
  ErrorF("-flipPixels            swap default black/white Pixel values\n");
#ifdef XF86VIDMODE
  ErrorF("-disableVidMode        disable mode adjustments with xvidtune\n");
  ErrorF("-allowNonLocalXvidtune allow xvidtune to be run as a non-local client\n");
#endif
#ifdef XF86MISC
  ErrorF("-disableModInDev       disable dynamic modification of input device settings\n");
  ErrorF("-allowNonLocalModInDev allow changes to keyboard and mouse settings\n");
  ErrorF("                       from non-local clients\n");
  ErrorF("-allowMouseOpenFail    start server even if the mouse can't be initialized\n");
#endif
  ErrorF("-bestRefresh           choose modes with the best refresh rate\n");
  ErrorF("-ignoreABI             make module ABI mismatches non-fatal\n");
  ErrorF("-version               show the server version\n");
  /* OS-specific usage */
  xf86UseMsg();
  ErrorF("\n");
}


#ifndef OSNAME
#define OSNAME " unknown"
#endif
#ifndef OSVENDOR
#define OSVENDOR ""
#endif
#ifndef PRE_RELEASE
#define PRE_RELEASE XORG_VERSION_SNAP
#endif

static void
xf86PrintBanner()
{
#if PRE_RELEASE
  ErrorF("\n"
    "This is a pre-release version of the " XVENDORNAME " X11.\n"
    "Portions of this release are based on XFree86 4.4RC2 and selected\n"
    "files from XFree86 4.4RC3. It is not supported in any way.\n"
    "Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.\n"
    "Select the \"xorg\" product for bugs you find in this release.\n"
    "Before reporting bugs in pre-release versions please check the\n"
    "latest version in the " XVENDORNAME " \"monolithic tree\" CVS\n"
    "repository hosted at http://www.freedesktop.org/Software/xorg/");
#endif
#if XORG_VERSION_SNAP > 0
  ErrorF(".%d", XF86_VERSION_SNAP);
#endif

#if XORG_VERSION_SNAP >= 900
  ErrorF(" (%d.%d.0 RC %d)", XORG_VERSION_MAJOR, XORG_VERSION_MINOR + 1,
				XORG_VERSION_SNAP - 900);
#endif

#ifdef XORG_CUSTOM_VERSION
  ErrorF(" (%s)", XF86_CUSTOM_VERSION);
#endif
  ErrorF("\nRelease Date: %s\n", XF86_DATE);
  ErrorF("X Protocol Version %d, Revision %d, %s\n",
         X_PROTOCOL, X_PROTOCOL_REVISION, XORG_RELEASE );
  ErrorF("Build Operating System:%s%s\n", OSNAME, OSVENDOR);
#ifdef HAS_UTSNAME
  {
    struct utsname name;

    if (uname(&name) == 0) {
      ErrorF("Current Operating System: %s %s %s %s %s\n",
	name.sysname, name.nodename, name.release, name.version, name.machine);
    }
  }
#endif
#if defined(BUILD_DATE) && (BUILD_DATE > 19000000)
  {
    struct tm t;
    char buf[100];

    bzero(&t, sizeof(t));
    bzero(buf, sizeof(buf));
    t.tm_mday = BUILD_DATE % 100;
    t.tm_mon = (BUILD_DATE / 100) % 100 - 1;
    t.tm_year = BUILD_DATE / 10000 - 1900;
    if (strftime(buf, sizeof(buf), "%d %B %Y", &t))
       ErrorF("Build Date: %s\n", buf);
  }
#endif
#if defined(CLOG_DATE) && (CLOG_DATE > 19000000)
  {
    struct tm t;
    char buf[100];

    bzero(&t, sizeof(t));
    bzero(buf, sizeof(buf));
    t.tm_mday = CLOG_DATE % 100;
    t.tm_mon = (CLOG_DATE / 100) % 100 - 1;
    t.tm_year = CLOG_DATE / 10000 - 1900;
    if (strftime(buf, sizeof(buf), "%d %B %Y", &t))
       ErrorF("Changelog Date: %s\n", buf);
  }
#endif
#if defined(BUILDERSTRING)
  ErrorF("%s \n",BUILDERSTRING);
#endif
  ErrorF("\tBefore reporting problems, check "__VENDORDWEBSUPPORT__"\n"
	 "\tto make sure that you have the latest version.\n");
#ifdef XFree86LOADER
  ErrorF("Module Loader present\n");
#endif
}

static void
xf86PrintMarkers()
{
  LogPrintMarkers();
}

static void
xf86RunVtInit(void)
{
    int i;

    /*
     * If VTInit was set, run that program with consoleFd as stdin and stdout
     */

    if (xf86Info.vtinit) {
      switch(fork()) {
      case -1:
          FatalError("xf86RunVtInit: fork failed (%s)\n", strerror(errno));
          break;
      case 0:  /* child */
          setuid(getuid());
          /* set stdin, stdout to the consoleFd */
          for (i = 0; i < 2; i++) {
            if (xf86Info.consoleFd != i) {
              close(i);
              dup(xf86Info.consoleFd);
            }
          }
          execl("/bin/sh", "sh", "-c", xf86Info.vtinit, (void *)NULL);
          xf86Msg(X_WARNING, "exec of /bin/sh failed for VTInit (%s)\n",
                 strerror(errno));
          exit(255);
          break;
      default:  /* parent */
          wait(NULL);
      }
    }
}

#ifdef XFree86LOADER
/*
 * xf86LoadModules iterates over a list that is being passed in.
 */             
Bool
xf86LoadModules(char **list, pointer *optlist)
{
    int errmaj, errmin;
    pointer opt;
    int i;
    char *name;
    Bool failed = FALSE;

    if (!list)
	return TRUE;

    for (i = 0; list[i] != NULL; i++) {

#ifndef NORMALISE_MODULE_NAME
	name = xstrdup(list[i]);
#else
	/* Normalise the module name */
	name = xf86NormalizeName(list[i]);
#endif

	/* Skip empty names */
	if (name == NULL || *name == '\0')
	    continue;

	if (optlist)
	    opt = optlist[i];
	else
	    opt = NULL;

        if (!LoadModule(name, NULL, NULL, NULL, opt, NULL, &errmaj, &errmin)) {
	    LoaderErrorMsg(NULL, name, errmaj, errmin);
	    failed = TRUE;
	}
	xfree(name);
    }
    return !failed;
}

#endif

/* Pixmap format stuff */

PixmapFormatPtr
xf86GetPixFormat(ScrnInfoPtr pScrn, int depth)
{
    int i;
    static PixmapFormatRec format;	/* XXX not reentrant */

    /*
     * When the formats[] list initialisation isn't complete, check the
     * depth 24 pixmap config/cmdline options and screen-specified formats.
     */

    if (!formatsDone) {
	if (depth == 24) {
	    Pix24Flags pix24 = Pix24DontCare;

	    format.depth = 24;
	    format.scanlinePad = BITMAP_SCANLINE_PAD;
	    if (xf86Info.pixmap24 != Pix24DontCare)
		pix24 = xf86Info.pixmap24;
	    else if (pScrn->pixmap24 != Pix24DontCare)
		pix24 = pScrn->pixmap24;
	    if (pix24 == Pix24Use24)
		format.bitsPerPixel = 24;
	    else
		format.bitsPerPixel = 32;
	    return &format;
	}
    }
	
    for (i = 0; i < numFormats; i++)
	if (formats[i].depth == depth)
	   break;
    if (i != numFormats)
	return &formats[i];
    else if (!formatsDone) {
	/* Check for screen-specified formats */
	for (i = 0; i < pScrn->numFormats; i++)
	    if (pScrn->formats[i].depth == depth)
		break;
	if (i != pScrn->numFormats)
	    return &pScrn->formats[i];
    }
    return NULL;
}

int
xf86GetBppFromDepth(ScrnInfoPtr pScrn, int depth)
{
    PixmapFormatPtr format;

   
    format = xf86GetPixFormat(pScrn, depth);
    if (format)
	return format->bitsPerPixel;
    else
	return 0;
}