path: root/xc/programs/Xserver/hw/sun/sunInit.c

/* $XConsortium: sunInit.c,v 5.53 94/08/16 13:45:30 dpw Exp kaleb $ */
/*
 * sunInit.c --
 *	Initialization functions for screen/keyboard/mouse, etc.
 *
 * Copyright (c) 1987 by the Regents of the University of California
 *
 * Permission to use, copy, modify, and distribute this
 * software and its documentation for any purpose and without
 * fee is hereby granted, provided that the above copyright
 * notice appear in all copies.  The University of California
 * makes no representations about the suitability of this
 * software for any purpose.  It is provided "as is" without
 * express or implied warranty.
 *
 *
 */

/************************************************************
Copyright 1987 by Sun Microsystems, Inc. Mountain View, CA.

                    All Rights Reserved

Permission  to  use,  copy,  modify,  and  distribute   this
software  and  its documentation for any purpose and without
fee is hereby granted, provided that the above copyright no-
tice  appear  in all copies and that both that copyright no-
tice and this permission notice appear in  supporting  docu-
mentation,  and  that the names of Sun or X Consortium
not be used in advertising or publicity pertaining to 
distribution  of  the software  without specific prior 
written permission. Sun and X Consortium make no 
representations about the suitability of this software for 
any purpose. It is provided "as is" without any express or 
implied warranty.

SUN DISCLAIMS ALL WARRANTIES WITH REGARD TO  THIS  SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FIT-
NESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SUN BE  LI-
ABLE  FOR  ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,  DATA  OR
PROFITS,  WHETHER  IN  AN  ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
THE USE OR PERFORMANCE OF THIS SOFTWARE.

*******************************************************/

#include    "sun.h"
#include    "gcstruct.h"
#include    "mi.h"
#include    "mibstore.h"
#include    "cfb.h"

/* maximum pixmap depth */
#ifndef SUNMAXDEPTH
#define SUNMAXDEPTH 8
#endif

#ifdef i386 /* { */
#define BW2I NULL
#else /* }{ */
extern Bool sunBW2Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define BW2I sunBW2Init
#endif /* } */
#if SUNMAXDEPTH == 1 /* { */
#define CG2I NULL
#define CG3I NULL
#define CG4I NULL
#define CG6I NULL
#define CG8I NULL
#else /* }{ */
extern Bool sunCG3Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define CG3I sunCG3Init
#ifdef i386 /* { */
#define CG2I NULL
#define CG4I NULL
#else /* }{ */
extern Bool sunCG2Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define CG2I sunCG2Init
extern Bool sunCG4Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define CG4I sunCG4Init
#endif /* } */
#ifdef FBTYPE_SUNFAST_COLOR /* { */
extern Bool sunCG6Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define CG6I sunCG6Init
#else /* }{ */
#define CG6I NULL
#endif /* } */
#if SUNMAXDEPTH > 8 /* { */
extern Bool sunCG8Init(
#if NeedFunctionPrototypes
    int /* screen */,
    ScreenPtr /* pScreen */,
    int /* argc */,
    char** /* argv */
#endif
);
#define CG8I sunCG8Init
#else /* }{ */
#define CG8I NULL
#endif /* } */
#endif /* } */

extern KeySymsRec sunKeySyms[];
extern SunModmapRec *sunModMaps[];
extern int sunMaxLayout;
extern KeySym* sunType4KeyMaps[];
extern SunModmapRec* sunType4ModMaps[];

static Bool	sunDevsInited = FALSE;

Bool sunAutoRepeatHandlersInstalled;	/* FALSE each time InitOutput called */
Bool sunSwapLkeys = FALSE;
Bool sunFlipPixels = FALSE;
Bool sunFbInfo = FALSE;
Bool sunCG4Frob = FALSE;
Bool sunNoGX = FALSE;

sunKbdPrivRec sunKbdPriv = {
    -1,		/* fd */
    -1,		/* type */
    -1,		/* layout */
    0,		/* click */
    (Leds)0,	/* leds */
};

sunPtrPrivRec sunPtrPriv = {
    -1,		/* fd */
    0		/* Current button state */
};

/*
 * The name member in the following table corresponds to the 
 * FBTYPE_* macros defined in /usr/include/sun/fbio.h file
 */
sunFbDataRec sunFbData[FBTYPE_LASTPLUSONE] = {
  { NULL, "SUN1BW        (bw1)" },
  { NULL, "SUN1COLOR     (cg1)" },
  { BW2I, "SUN2BW        (bw2)" },	
  { CG2I, "SUN2COLOR     (cg2)" },
  { NULL, "SUN2GP        (gp1/gp2)" },
  { NULL, "SUN5COLOR     (cg5/386i accel)" },
  { CG3I, "SUN3COLOR     (cg3)" },
  { CG8I, "MEMCOLOR      (cg8)" },
  { CG4I, "SUN4COLOR     (cg4)" },
  { NULL, "NOTSUN1" },
  { NULL, "NOTSUN2" },
  { NULL, "NOTSUN3" }	
#ifndef i386 /* { */
 ,{ CG6I, "SUNFAST_COLOR (cg6/gx)" },
  { NULL, "SUNROP_COLOR  (cg9)" },
  { NULL, "SUNFB_VIDEO" },
  { NULL, "SUNGIFB" },
  { NULL, "SUNPLAS" },
#ifdef FBTYPE_SUNGP3
  { NULL, "SUNGP3        (cg12/gs)" },
#endif
#ifdef FBTYPE_SUNGT
  { NULL, "SUNGT         (gt)" },
#endif
#ifdef FBTYPE_SUNLEO
  { NULL, "SUNLEO        (zx)" },
#endif
#ifdef FBTYPE_MDICOLOR
  { NULL, "MDICOLOR      (cgfourteen)" },
#endif
#endif /* } */
};

/*
 * a list of devices to try if there is no environment or command
 * line list of devices
 */
#if SUNMAXDEPTH == 1 /* { */
static char *fallbackList[] = {
    BWTWO0DEV, BWTWO1DEV, BWTWO2DEV
};
#else /* }{ */
static char *fallbackList[] = {
#ifndef i386 /* { */
    CGTWO0DEV, CGTWO1DEV, CGTWO2DEV,
#if (MAXSCREENS == 4)
    CGTWO3DEV,
#endif
#endif /* } */
    CGTHREE0DEV,
#ifndef i386 /* { */
    CGTHREE1DEV, CGTHREE2DEV,
#if (MAXSCREENS == 4)
    CGTHREE3DEV,
#endif
#endif /* } */
#ifdef FBTYPE_SUNFAST_COLOR /* { */
    CGSIX0DEV, CGSIX1DEV, CGSIX2DEV,
#if (MAXSCREENS == 4)
    CGSIX3DEV,
#endif
#endif /* } */
#ifndef i386 /* { */
    CGFOUR0DEV, BWTWO0DEV, BWTWO1DEV, BWTWO2DEV,
#if (MAXSCREENS == 4)
    BWTWO3DEV,
#endif
#endif /* } */
#if SUNMAXDEPTH > 8 /* { */
    CGEIGHT0DEV,
#endif /* } */
    "/dev/fb"
};
#endif /* } */

#define FALLBACK_LIST_LEN sizeof fallbackList / sizeof fallbackList[0]

fbFd sunFbs[MAXSCREENS];

static PixmapFormatRec	formats[] = {
    { 1, 1, BITMAP_SCANLINE_PAD	} /* 1-bit deep */
#if SUNMAXDEPTH > 1
    ,{ 8, 8, BITMAP_SCANLINE_PAD} /* 8-bit deep */
#if SUNMAXDEPTH > 8
    ,{ 12, 24, BITMAP_SCANLINE_PAD } /* 12-bit deep */
    ,{ 24, 32, BITMAP_SCANLINE_PAD } /* 24-bit deep */
#endif
#endif
};
#define NUMFORMATS	(sizeof formats)/(sizeof formats[0])

/*
 * OpenFrameBuffer --
 *	Open a frame buffer according to several rules.
 *	Find the device to use by looking in the sunFbData table,
 *	an XDEVICE envariable, a -dev switch or using /dev/fb if trying
 *	to open screen 0 and all else has failed.
 *
 * Results:
 *	The fd of the framebuffer.
 */
static int OpenFrameBuffer(device, screen)
    char		*device;	/* e.g. "/dev/cgtwo0" */
    int			screen;    	/* what screen am I going to be */
{
    int			ret = TRUE;
    struct fbgattr	*fbattr;
    static int		devFbUsed;

    sunFbs[screen].fd = -1;
    if (strcmp (device, "/dev/fb") == 0 && devFbUsed)
	return FALSE;
    if (access (device, R_OK | W_OK) == -1)
	return FALSE;
    if ((sunFbs[screen].fd = open(device, O_RDWR, 0)) == -1)
	ret = FALSE;
    else {
	fbattr = (struct fbgattr *) xalloc (sizeof (struct fbgattr));
	if (ioctl(sunFbs[screen].fd, FBIOGATTR, fbattr) == -1) {
	    /*
		This is probably a bwtwo; the $64,000 question is: 
		is it the mono plane of a cgfour, or is it really a 
		real bwtwo?  If there is only a cgfour in the box or 
		only a bwtwo in the box, then it isn't a problem.  If 
		it's a 3/60, which has a bwtwo on the mother board *and* 
		a cgfour, then things get tricky because there's no way 
		to tell if the bwtwo is really being emulated by the cgfour.
	    */
	    xfree (fbattr);
	    fbattr = NULL;
	    if (ioctl(sunFbs[screen].fd, FBIOGTYPE, &sunFbs[screen].info) == -1) {
		Error("unable to get frame buffer attributes");
		(void) close(sunFbs[screen].fd);
		sunFbs[screen].fd = -1;
		ret = FALSE; 
	    }
	}
	if (ret) {
	    devFbUsed = TRUE;
	    if (fbattr)
		sunFbs[screen].info = fbattr->fbtype;
	    sunFbs[screen].fbPriv = (pointer) fbattr;
	    if (fbattr && 
		fbattr->fbtype.fb_type < FBTYPE_LASTPLUSONE && 
		!sunFbData[fbattr->fbtype.fb_type].init) {
		int _i;
		ret = FALSE;
		for (_i = 0; _i < FB_ATTR_NEMUTYPES; _i++) {
		    if (sunFbData[fbattr->emu_types[_i]].init) {
			sunFbs[screen].info.fb_type = fbattr->emu_types[_i];
			ret = TRUE;
			if (sunFbInfo)
			    ErrorF ("%s is emulating a %s\n", device,
				sunFbData[fbattr->fbtype.fb_type].name);
			break;
		    }
		}
	    }
	    if (sunFbInfo) 
		ErrorF ("%s is really a %s\n", device, 
		    sunFbData[fbattr ? fbattr->fbtype.fb_type : sunFbs[screen].info.fb_type].name);
	}
    }
    if (!ret)
	sunFbs[screen].fd = -1;
    return ret;
}

/*-
 *-----------------------------------------------------------------------
 * SigIOHandler --
 *	Signal handler for SIGIO - input is available.
 *
 * Results:
 *	sunSigIO is set - ProcessInputEvents() will be called soon.
 *
 * Side Effects:
 *	None
 *
 *-----------------------------------------------------------------------
 */
/*ARGSUSED*/
static void SigIOHandler(sig)
    int		sig;
{
    int olderrno = errno;
    sunEnqueueEvents ();
    errno = olderrno;
}

/*-
 *-----------------------------------------------------------------------
 * sunNonBlockConsoleOff --
 *	Turn non-blocking mode on the console off, so you don't get logged
 *	out when the server exits.
 *
 * Results:
 *	None.
 *
 * Side Effects:
 *	None.
 *
 *-----------------------------------------------------------------------
 */
void sunNonBlockConsoleOff(
#if NeedFunctionPrototypes
#if defined(SVR4) || defined(__NetBSD__)
    void
#else
    char* arg
#endif
#endif
)
{
    register int i;

    i = fcntl(2, F_GETFL, 0);
    if (i >= 0)
	(void) fcntl(2, F_SETFL, i & ~FNDELAY);
}

static char** GetDeviceList (argc, argv)
    int		argc;
    char	**argv;
{
    int		i;
    char	*envList = NULL;
    char	*cmdList = NULL;
    char	**deviceList = (char **)NULL; 

    for (i = 1; i < argc; i++)
	if (strcmp (argv[i], "-dev") == 0 && i+1 < argc) {
	    cmdList = argv[i + 1];
	    break;
	}
    if (!cmdList)
	envList = getenv ("XDEVICE");

    if (cmdList || envList) {
	char	*_tmpa;
	char	*_tmpb;
	int	_i1;
	deviceList = (char **) xalloc ((MAXSCREENS + 1) * sizeof (char *));
	_tmpa = (cmdList) ? cmdList : envList;
	for (_i1 = 0; _i1 < MAXSCREENS; _i1++) {
	    _tmpb = strtok (_tmpa, ":");
	    if (_tmpb)
		deviceList[_i1] = _tmpb;
	    else
		deviceList[_i1] = NULL;
	    _tmpa = NULL;
	}
	deviceList[MAXSCREENS] = NULL;
    }
    if (!deviceList) {
	/* no environment and no cmdline, so default */
	deviceList = 
	    (char **) xalloc ((FALLBACK_LIST_LEN + 1) * sizeof (char *));
	for (i = 0; i < FALLBACK_LIST_LEN; i++)
	    deviceList[i] = fallbackList[i];
	deviceList[FALLBACK_LIST_LEN] = NULL;
    }
    return deviceList;
}

static void getKbdType()
{
/*
 * The Sun 386i has system include files that preclude this pre SunOS 4.1
 * test for the presence of a type 4 keyboard however it really doesn't
 * matter since no 386i has ever been shipped with a type 3 keyboard.
 * SunOS 4.1 no longer needs this kludge.
 */
#if !defined(i386) && !defined(KIOCGKEY)
#define TYPE4KEYBOARDOVERRIDE
#endif

    int ii;

    for (ii = 0; ii < 3; ii++) {
	sunKbdWait();
	(void) ioctl (sunKbdPriv.fd, KIOCTYPE, &sunKbdPriv.type);
#ifdef TYPE4KEYBOARDOVERRIDE
	/*
	 * Magic. Look for a key which is non-existent on a real type
	 * 3 keyboard but does exist on a type 4 keyboard.
	 */
	if (sunKbdPriv.type == KB_SUN3) {
	    struct kiockey key;

	    key.kio_tablemask = 0;
	    key.kio_station = 118;
	    if (ioctl(sunKbdPriv.fd, KIOCGETKEY, &key) == -1) {
		Error( "ioctl KIOCGETKEY" );
		FatalError("Can't KIOCGETKEY on fd %d\n", kbdFd);
	    }
	    if (key.kio_entry != HOLE)
		sunKbdPriv.type = KB_SUN4;
	}
#endif
	switch (sunKbdPriv.type) {
	case KB_SUN2:
	case KB_SUN3:
	case KB_SUN4: return;
	default: 
	    sunChangeKbdTranslation(sunKbdPriv.fd, FALSE);
	    continue;
	}
    }
    FatalError ("Unsupported keyboard type %d\n", sunKbdPriv.type);
}

void OsVendorInit(
#if NeedFunctionPrototypes
    void
#endif
)
{
    static int inited;
    if (!inited) {
#ifndef i386
	struct rlimit rl;

	/* 
	 * one per client, one per screen, one per listen endpoint,
	 * keyboard, mouse, and stderr
	 */
	int maxfds = MAXCLIENTS + MAXSCREENS + 5;

	if (getrlimit (RLIMIT_NOFILE, &rl) == 0) {
	    rl.rlim_cur = maxfds < rl.rlim_max ? maxfds : rl.rlim_max;
	    (void) setrlimit (RLIMIT_NOFILE, &rl);
	}
#endif
	sunKbdPriv.fd = open ("/dev/kbd", O_RDWR, 0);
	sunPtrPriv.fd = open ("/dev/mouse", O_RDWR, 0);
	getKbdType ();
	if (sunKbdPriv.type == KB_SUN4) {
	    (void) ioctl (sunKbdPriv.fd, KIOCLAYOUT, &sunKbdPriv.layout);
	    if (sunKbdPriv.layout < 0 ||
		sunKbdPriv.layout > sunMaxLayout ||
		sunType4KeyMaps[sunKbdPriv.layout] == NULL)
		FatalError ("Unsupported keyboard type 4 layout %d\n",
			    sunKbdPriv.layout);
	    sunKeySyms[KB_SUN4].map = sunType4KeyMaps[sunKbdPriv.layout];
	    sunModMaps[KB_SUN4] = sunType4ModMaps[sunKbdPriv.layout];
        }
	inited = 1;
    }
}

/*-
 *-----------------------------------------------------------------------
 * InitOutput --
 *	Initialize screenInfo for all actually accessible framebuffers.
 *	The
 *
 * Results:
 *	screenInfo init proc field set
 *
 * Side Effects:
 *	None
 *
 *-----------------------------------------------------------------------
 */

void InitOutput(pScreenInfo, argc, argv)
    ScreenInfo 	  *pScreenInfo;
    int     	  argc;
    char    	  **argv;
{
    int     	i, scr;
    int		nonBlockConsole = 0;
    char	**devList;
    static int	setup_on_exit = 0;
    extern Bool	RunFromSmartParent;

    if (!monitorResolution)
	monitorResolution = 90;
    if (RunFromSmartParent)
	nonBlockConsole = 1;
    for (i = 1; i < argc; i++) {
	if (!strcmp(argv[i],"-debug"))
	    nonBlockConsole = 0;
    }

    /*
     *	Writes to /dev/console can block - causing an
     *	excess of error messages to hang the server in
     *	deadlock.  So.......
     */
    if (nonBlockConsole) {
	if (!setup_on_exit) {
#if defined(SVR4) || defined(__NetBSD__)
	    if (atexit(sunNonBlockConsoleOff))
#else
	    if (on_exit(sunNonBlockConsoleOff, (char *)0))
#endif
		ErrorF("InitOutput: can't register NBIO exit handler\n");

	    setup_on_exit = 1;
	}
	i = fcntl(2, F_GETFL, 0);
	if (i >= 0)
	    i = fcntl(2, F_SETFL, i | FNDELAY);
	if (i < 0) {
	    Error("fcntl");
	    ErrorF("InitOutput: can't put stderr in non-block mode\n");
	}
    }
    pScreenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
    pScreenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
    pScreenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
    pScreenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;

    pScreenInfo->numPixmapFormats = NUMFORMATS;
    for (i=0; i< NUMFORMATS; i++)
        pScreenInfo->formats[i] = formats[i];
#ifdef XKB
    if (noXkbExtension)
#endif
    sunAutoRepeatHandlersInstalled = FALSE;
    if (!sunDevsInited) {
	/* first time ever */
	for (scr = 0; scr < MAXSCREENS; scr++)
	    sunFbs[scr].fd = -1;
	devList = GetDeviceList (argc, argv);
	for (i = 0, scr = 0; devList[i] != NULL && scr < MAXSCREENS; i++)
	    if (OpenFrameBuffer (devList[i], scr))
		scr++;
	sunDevsInited = TRUE;
	xfree (devList);
    }
    for (scr = 0; scr < MAXSCREENS; scr++)
	if (sunFbs[scr].fd != -1)
	    (void) AddScreen (sunFbData[sunFbs[scr].info.fb_type].init, 
			      argc, argv);
    (void) OsSignal(SIGWINCH, SIG_IGN);
}

/*-
 *-----------------------------------------------------------------------
 * InitInput --
 *	Initialize all supported input devices...what else is there
 *	besides pointer and keyboard?
 *
 * Results:
 *	None.
 *
 * Side Effects:
 *	Two DeviceRec's are allocated and registered as the system pointer
 *	and keyboard devices.
 *
 *-----------------------------------------------------------------------
 */
void InitInput(argc, argv)
    int     	  argc;
    char    	  **argv;
{
    DevicePtr	p, k;
    extern Bool mieqInit();

    p = AddInputDevice(sunMouseProc, TRUE);
    k = AddInputDevice(sunKbdProc, TRUE);
    if (!p || !k)
	FatalError("failed to create input devices in InitInput");

    RegisterPointerDevice(p);
    RegisterKeyboardDevice(k);
    miRegisterPointerDevice(screenInfo.screens[0], p);
    (void) mieqInit (k, p);
#define SET_FLOW(fd) fcntl(fd, F_SETFL, FNDELAY | FASYNC)
#ifdef SVR4
    (void) OsSignal(SIGPOLL, SigIOHandler);
#define WANT_SIGNALS(fd) ioctl(fd, I_SETSIG, S_INPUT | S_HIPRI)
#else
    (void) OsSignal(SIGIO, SigIOHandler);
#define WANT_SIGNALS(fd) fcntl(fd, F_SETOWN, getpid())
#endif
    if (sunKbdPriv.fd >= 0) {
	if (SET_FLOW(sunKbdPriv.fd) == -1 || WANT_SIGNALS(sunKbdPriv.fd) == -1) {	
	    (void) close (sunKbdPriv.fd);
	    sunKbdPriv.fd = -1;
	    FatalError("Async kbd I/O failed in InitInput");
	}
    }
    if (sunPtrPriv.fd >= 0) {
	if (SET_FLOW(sunPtrPriv.fd) == -1 || WANT_SIGNALS(sunPtrPriv.fd) == -1) {	
	    (void) close (sunPtrPriv.fd);
	    sunPtrPriv.fd = -1;
	    FatalError("Async mouse I/O failed in InitInput");
	}
    }
}


#if SUNMAXDEPTH == 8

Bool
sunCfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int	bpp;			/* bits per pixel of root */
{
    return cfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy,
			  width);
}

Bool
sunCfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int bpp;			/* bits per pixel of root */
{
    return cfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy,
			       width);
}

Bool
sunCfbScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int bpp;			/* bits per pixel of root */
{
    return cfbScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width);
}

#else /* SUNMAXDEPTH != 8 */
#if SUNMAXDEPTH == 32

static Bool
sunCfbCreateGC(pGC)
    GCPtr   pGC;
{
    if (pGC->depth == 1)
    {
	return mfbCreateGC (pGC);
    }
    else if (pGC->depth <= 8)
    {
	return cfbCreateGC (pGC);
    }
    else if (pGC->depth <= 16)
    {
	return cfb16CreateGC (pGC);
    }
    else if (pGC->depth <= 32)
    {
	return cfb32CreateGC (pGC);
    }
    return FALSE;
}

static void
sunCfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pdstStart)
    DrawablePtr		pDrawable;	/* drawable from which to get bits */
    int			wMax;		/* largest value of all *pwidths */
    register DDXPointPtr ppt;		/* points to start copying from */
    int			*pwidth;	/* list of number of bits to copy */
    int			nspans;		/* number of scanlines to copy */
    char		*pdstStart;	/* where to put the bits */
{
    switch (pDrawable->bitsPerPixel) {
    case 1:
	mfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
	break;
    case 8:
	cfbGetSpans(pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
	break;
    case 16:
	cfb16GetSpans(pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
	break;
    case 32:
	cfb32GetSpans(pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
	break;
    }
    return;
}

static void
sunCfbGetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine)
    DrawablePtr pDrawable;
    int		sx, sy, w, h;
    unsigned int format;
    unsigned long planeMask;
    char	*pdstLine;
{
    switch (pDrawable->bitsPerPixel)
    {
    case 1:
	mfbGetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
	break;
    case 8:
	cfbGetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
	break;
    case 16:
	cfb16GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
	break;
    case 32:
	cfb32GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine);
	break;
    }
}

Bool
sunCfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int	bpp;			/* bits per pixel of root */
{
    int ret;

    switch (bpp) {
    case 8:
	ret = cfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width);
	break;
    case 16:
	ret = cfb16SetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width);
	break;
    case 32:
	ret = cfb32SetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy, width);
	break;
    default:
	return FALSE;
    }
    pScreen->CreateGC = sunCfbCreateGC;
    pScreen->GetImage = sunCfbGetImage;
    pScreen->GetSpans = sunCfbGetSpans;
    return ret;
}

extern miBSFuncRec	cfbBSFuncRec, cfb16BSFuncRec, cfb32BSFuncRec;
extern int  cfb16ScreenPrivateIndex, cfb32ScreenPrivateIndex;
extern Bool cfbCloseScreen(), cfb16CloseScreen(), cfb32CloseScreen();

Bool
sunCfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int bpp;
{
    pointer	oldDevPrivate;
    VisualPtr	visuals;
    int		nvisuals;
    DepthPtr	depths;
    int		ndepths;
    VisualID	defaultVisual;
    int		rootdepth = 0;
    miBSFuncPtr	bsFuncs;

    if (!cfbInitVisuals(&visuals, &depths, &nvisuals, &ndepths,
			&rootdepth, &defaultVisual, 1 << (bpp - 1), 8))
	return FALSE;
    oldDevPrivate = pScreen->devPrivate;
    if (! miScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width,
			rootdepth, ndepths, depths,
			defaultVisual, nvisuals, visuals,
			(miBSFuncPtr) 0))
	return FALSE;
    switch (bpp)
    {
    case 8:
	pScreen->CloseScreen = cfbCloseScreen;
	bsFuncs = &cfbBSFuncRec;
	break;
    case 16:
	pScreen->CloseScreen = cfb16CloseScreen;
	pScreen->devPrivates[cfb16ScreenPrivateIndex].ptr =
	    pScreen->devPrivate;
	pScreen->devPrivate = oldDevPrivate;
	bsFuncs = &cfb16BSFuncRec;
	break;
    case 32:
	pScreen->CloseScreen = cfb32CloseScreen;
	pScreen->devPrivates[cfb32ScreenPrivateIndex].ptr =
	    pScreen->devPrivate;
	pScreen->devPrivate = oldDevPrivate;
	bsFuncs = &cfb32BSFuncRec;
	break;
    }
    miInitializeBackingStore (pScreen, bsFuncs);
    return TRUE;
}


Bool
sunCfbScreenInit(pScreen, pbits, xsize, ysize, dpix, dpiy, width, bpp)
    register ScreenPtr pScreen;
    pointer pbits;		/* pointer to screen bitmap */
    int xsize, ysize;		/* in pixels */
    int dpix, dpiy;		/* dots per inch */
    int width;			/* pixel width of frame buffer */
    int bpp;
{
    if (!sunCfbSetupScreen(pScreen, pbits, xsize, ysize, dpix, dpiy,
			   width, bpp))
	return FALSE;
    return sunCfbFinishScreenInit(pScreen, pbits, xsize, ysize, dpix,
				  dpiy, width, bpp);
}

#endif  /* SUNMAXDEPTH == 32 */
#endif  /* SUNMAXDEPTH */