git update 31-1-2010

3 files changed, 3023 insertions, 3090 deletions

diff --git a/xorg-server/hw/xfree86/common/xf86Events.c b/xorg-server/hw/xfree86/common/xf86Events.c
index 8cd765a1c..ee4835233 100644
--- a/xorg-server/hw/xfree86/common/xf86Events.c
+++ b/xorg-server/hw/xfree86/common/xf86Events.c
@@ -1,747 +1,740 @@
-/*
- * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Thomas Roell not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission.  Thomas Roell makes no representations
- * about the suitability of this software for any purpose.  It is provided
- * "as is" without express or implied warranty.
- *
- * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL THOMAS ROELL BE LIABLE 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.
- *
- */
-/*
- * Copyright (c) 1994-2003 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).
- */
-
-/* [JCH-96/01/21] Extended std reverse map to four buttons. */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xpoll.h>
-#include <X11/Xproto.h>
-#include "misc.h"
-#include "compiler.h"
-#include "xf86.h"
-#include "xf86Priv.h"
-#define XF86_OS_PRIVS
-#include "xf86_OSlib.h"
-#include <X11/keysym.h>
-
-#ifdef XFreeXDGA
-#include "dgaproc.h"
-#endif
-
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XIproto.h>
-#include "inputstr.h"
-#include "xf86Xinput.h"
-
-#include "mi.h"
-#include "mipointer.h"
-
-#include "xkbsrv.h"
-#include "xkbstr.h"
-
-#ifdef DPMSExtension
-#include <X11/extensions/dpmsconst.h>
-#include "dpmsproc.h"
-#endif
-
-/*
- * This is a toggling variable:
- *  FALSE = No VT switching keys have been pressed last time around
- *  TRUE  = Possible VT switch Pending
- * (DWH - 12/2/93)
- *
- * This has been generalised to work with Linux and *BSD+syscons (DHD)
- */
-
-Bool VTSwitchEnabled = TRUE;		/* Allows run-time disabling for
-                                         *BSD and for avoiding VT
-                                         switches when using the DRI
-                                         automatic full screen mode.*/
-
-extern fd_set EnabledDevices;
-
-#ifdef XF86PM
-extern void (*xf86OSPMClose)(void);
-#endif
-
-static void xf86VTSwitch(void);
-
-/*
- * Allow arbitrary drivers or other XFree86 code to register with our main
- * Wakeup handler.
- */
-typedef struct x_IHRec {
-    int			fd;
-    InputHandlerProc	ihproc;
-    pointer		data;
-    Bool		enabled;
-    struct x_IHRec *	next;
-} IHRec, *IHPtr;
-
-static IHPtr InputHandlers = NULL;
-
-
-Bool
-LegalModifier(unsigned int key, DeviceIntPtr pDev)
-{
-    return TRUE;
-}
-
-/*
- * TimeSinceLastInputEvent --
- *      Function used for screensaver purposes by the os module. Returns the
- *      time in milliseconds since there last was any input.
- */
-int
-TimeSinceLastInputEvent(void)
-{
-  if (xf86Info.lastEventTime == 0) {
-    xf86Info.lastEventTime = GetTimeInMillis();
-  }
-  return GetTimeInMillis() - xf86Info.lastEventTime;
-}
-
-/*
- * SetTimeSinceLastInputEvent --
- *      Set the lastEventTime to now.
- */
-void
-SetTimeSinceLastInputEvent(void)
-{
-  xf86Info.lastEventTime = GetTimeInMillis();
-}
-
-/*
- * ProcessInputEvents --
- *      Retrieve all waiting input events and pass them to DIX in their
- *      correct chronological order. Only reads from the system pointer
- *      and keyboard.
- */
-void
-ProcessInputEvents (void)
-{
-  int x, y;
-
-  mieqProcessInputEvents();
-
-  /* FIXME: This is a problem if we have multiple pointers */
-  miPointerGetPosition(inputInfo.pointer, &x, &y);
-  xf86SetViewport(xf86Info.currentScreen, x, y);
-}
-
-/*
- * Handle keyboard events that cause some kind of "action"
- * (i.e., server termination, video mode changes, VT switches, etc.)
- */
-void
-xf86ProcessActionEvent(ActionEvent action, void *arg)
-{
-    DebugF("ProcessActionEvent(%d,%x)\n", (int) action, arg);
-    switch (action) {
-    case ACTION_TERMINATE:
-	if (!xf86Info.dontZap) {
-#ifdef XFreeXDGA
-	    DGAShutdown();
-#endif
-	    GiveUp(0);
-	}
-	break;
-    case ACTION_NEXT_MODE:
-	if (!xf86Info.dontZoom)
-	    xf86ZoomViewport(xf86Info.currentScreen,  1);
-	break;
-    case ACTION_PREV_MODE:
-	if (!xf86Info.dontZoom)
-	    xf86ZoomViewport(xf86Info.currentScreen, -1);
-	break;
-#if defined(VT_ACTIVATE)
-    case ACTION_SWITCHSCREEN:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {
-	    int vtno = *((int *) arg);
-#if defined(__SCO__) || defined(__UNIXWARE__)
-	    vtno--;
-#endif
-#if defined(sun)
-	    if (vtno == xf86Info.vtno)
-		break;
-
-	    xf86Info.vtRequestsPending = TRUE;
-	    xf86Info.vtPendingNum = vtno;
-#else
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, vtno) < 0)
-		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-#endif
-	}
-	break;
-    case ACTION_SWITCHSCREEN_NEXT:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {
-#if defined(__SCO__) || defined(__UNIXWARE__)
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno) < 0)
-#else
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno + 1) < 0)
-#endif
-#if defined (__SCO__) || (defined(sun) && defined (__i386__) && defined (SVR4)) || defined(__UNIXWARE__)
-		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 0) < 0)
-#else
-		if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, 1) < 0)
-#endif
-		    ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-	}
-	break;
-    case ACTION_SWITCHSCREEN_PREV:
-	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {
-	    if (ioctl(xf86Info.consoleFd, VT_ACTIVATE, xf86Info.vtno - 1) < 0)
-		ErrorF("Failed to switch consoles (%s)\n", strerror(errno));
-	}
-	break;
-#endif
-    default:
-	break;
-    }
-}
-
-/*
- * xf86Wakeup --
- *      Os wakeup handler.
- */
-
-/* ARGSUSED */
-void
-xf86Wakeup(pointer blockData, int err, pointer pReadmask)
-{
-    fd_set* LastSelectMask = (fd_set*)pReadmask;
-    fd_set devicesWithInput;
-    InputInfoPtr pInfo;
-
-    if (err >= 0) {
-
-	XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);
-	if (XFD_ANYSET(&devicesWithInput)) {
-	    pInfo = xf86InputDevs;
-	    while (pInfo) {
-		if (pInfo->read_input && pInfo->fd >= 0 &&
-		    (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {
-		    int sigstate = xf86BlockSIGIO();
-
-		    /*
-		     * Remove the descriptior from the set because more than one
-		     * device may share the same file descriptor.
-		     */
-		    FD_CLR(pInfo->fd, &devicesWithInput);
-
-		    pInfo->read_input(pInfo);
-		    xf86UnblockSIGIO(sigstate);
-		}
-		pInfo = pInfo->next;
-	    }
-	}
-    }
-
-    if (err >= 0) { /* we don't want the handlers called if select() */
-	IHPtr ih;   /* returned with an error condition, do we?      */
-	
-	for (ih = InputHandlers; ih; ih = ih->next) {
-	    if (ih->enabled && ih->fd >= 0 && ih->ihproc &&
-		(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {
-		ih->ihproc(ih->fd, ih->data);
-	    }
-	}
-    }
-
-    if (xf86VTSwitchPending()) xf86VTSwitch();
-}
-
-
-/*
- * xf86SigioReadInput --
- *    signal handler for the SIGIO signal.
- */
-static void
-xf86SigioReadInput(int fd, void *closure)
-{
-    int errno_save = errno;
-    InputInfoPtr pInfo = closure;
-
-    pInfo->read_input(pInfo);
-
-    errno = errno_save;
-}
-
-/*
- * xf86AddEnabledDevice --
- *
- */
-void
-xf86AddEnabledDevice(InputInfoPtr pInfo)
-{
-    if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {
-	AddEnabledDevice(pInfo->fd);
-    }
-}
-
-/*
- * xf86RemoveEnabledDevice --
- *
- */
-void
-xf86RemoveEnabledDevice(InputInfoPtr pInfo)
-{
-    if (!xf86RemoveSIGIOHandler (pInfo->fd)) {
-	RemoveEnabledDevice(pInfo->fd);
-    }
-}
-
-static int *xf86SignalIntercept = NULL;
-
-void
-xf86InterceptSignals(int *signo)
-{
-    if ((xf86SignalIntercept = signo))
-	*signo = -1;
-}
-
-static void (*xf86SigIllHandler)(void) = NULL;
-
-void
-xf86InterceptSigIll(void (*sigillhandler)(void))
-{
-    xf86SigIllHandler = sigillhandler;
-}
-
-/*
- * xf86SigWrapper --
- *    Catch unexpected signals and exit or continue cleanly.
- */
-int
-xf86SigWrapper(int signo)
-{
-  if ((signo == SIGILL) && xf86SigIllHandler) {
-    (*xf86SigIllHandler)();
-    return 0; /* continue */
-  }
-
-  if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {
-    *xf86SignalIntercept = signo;
-    return 0; /* continue */
-  }
-
-  xf86Info.caughtSignal = TRUE;
-  return 1; /* abort */
-}
-
-/*
- * xf86PrintBacktrace --
- *    Print a stack backtrace for debugging purposes.
- */
-void
-xf86PrintBacktrace(void)
-{
-    xorg_backtrace();
-}
-
-#define KeyPressed(k) (keyc->postdown[k >> 3] & (1 << (k & 7)))
-
-static void
-xf86ReleaseKeys(DeviceIntPtr pDev)
-{
-    KeyClassPtr keyc;
-    int i, j, nevents, sigstate;
-
-    if (!pDev || !pDev->key)
-        return;
-
-    keyc = pDev->key;
-
-    /*
-     * Hmm... here is the biggest hack of every time !
-     * It may be possible that a switch-vt procedure has finished BEFORE
-     * you released all keys neccessary to do this. That peculiar behavior
-     * can fool the X-server pretty much, cause it assumes that some keys
-     * were not released. TWM may stuck alsmost completly....
-     * OK, what we are doing here is after returning from the vt-switch
-     * exeplicitely unrelease all keyboard keys before the input-devices
-     * are reenabled.
-     */
-
-    for (i = keyc->xkbInfo->desc->min_key_code;
-         i < keyc->xkbInfo->desc->max_key_code;
-         i++) {
-        if (KeyPressed(i)) {
-            sigstate = xf86BlockSIGIO ();
-            nevents = GetKeyboardEvents(xf86Events, pDev, KeyRelease, i);
-            for (j = 0; j < nevents; j++)
-                mieqEnqueue(pDev, (InternalEvent*)(xf86Events + j)->event);
-            xf86UnblockSIGIO(sigstate);
-        }
-    }
-}
-
-/*
- * xf86VTSwitch --
- *      Handle requests for switching the vt.
- */
-static void
-xf86VTSwitch(void)
-{
-  int i, prevSIGIO;
-  InputInfoPtr pInfo;
-  IHPtr ih;
-
-  DebugF("xf86VTSwitch()\n");
-
-#ifdef XFreeXDGA
-  if(!DGAVTSwitch())
-	return;
-#endif
-
-  /*
-   * Since all screens are currently all in the same state it is sufficient
-   * check the first.  This might change in future.
-   */
-  if (xf86Screens[0]->vtSema) {
-
-    DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",
-	   BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));
-#ifdef DPMSExtension
-    if (DPMSPowerLevel != DPMSModeOn)
-	DPMSSet(serverClient, DPMSModeOn);
-#endif
-    for (i = 0; i < xf86NumScreens; i++) {
-      if (!(dispatchException & DE_TERMINATE))
-	if (xf86Screens[i]->EnableDisableFBAccess)
-	  (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);
-    }
-
-    /*
-     * Keep the order: Disable Device > LeaveVT
-     *                        EnterVT > EnableDevice
-     */
-    for (ih = InputHandlers; ih; ih = ih->next)
-      xf86DisableInputHandler(ih);
-    for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {
-      if (pInfo->dev) {
-          xf86ReleaseKeys(pInfo->dev);
-          ProcessInputEvents();
-          DisableDevice(pInfo->dev, TRUE);
-      }
-    }
-    xf86EnterServerState(SETUP);
-    for (i = 0; i < xf86NumScreens; i++)
-	xf86Screens[i]->LeaveVT(i, 0);
-
-    xf86AccessLeave();      /* We need this here, otherwise */
-
-    if (!xf86VTSwitchAway()) {
-      /*
-       * switch failed
-       */
-
-      DebugF("xf86VTSwitch: Leave failed\n");
-      prevSIGIO = xf86BlockSIGIO();
-      xf86AccessEnter();
-      xf86EnterServerState(SETUP);
-      for (i = 0; i < xf86NumScreens; i++) {
-	if (!xf86Screens[i]->EnterVT(i, 0))
-	  FatalError("EnterVT failed for screen %d\n", i);
-      }
-      xf86EnterServerState(OPERATING);
-      if (!(dispatchException & DE_TERMINATE)) {
-	for (i = 0; i < xf86NumScreens; i++) {
-	  if (xf86Screens[i]->EnableDisableFBAccess)
-	    (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);
-	}
-      }
-      dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
-
-      pInfo = xf86InputDevs;
-      while (pInfo) {
-        if (pInfo->dev)
-            EnableDevice(pInfo->dev, TRUE);
-	pInfo = pInfo->next;
-      }
-      for (ih = InputHandlers; ih; ih = ih->next)
-        xf86EnableInputHandler(ih);
-
-      xf86UnblockSIGIO(prevSIGIO);
-
-    } else {
-#ifdef XF86PM
-	  if (xf86OSPMClose)
-	      xf86OSPMClose();
-	  xf86OSPMClose = NULL;
-#endif
-
-	for (i = 0; i < xf86NumScreens; i++) {
- 	    /*
- 	     * zero all access functions to
- 	     * trap calls when switched away.
- 	     */
-	    xf86Screens[i]->vtSema = FALSE;
-	}
-	if (xorgHWAccess)
-	    xf86DisableIO();
-    }
-  } else {
-
-    DebugF("xf86VTSwitch: Entering\n");
-    if (!xf86VTSwitchTo()) return;
-
-    prevSIGIO = xf86BlockSIGIO();
-#ifdef XF86PM
-    xf86OSPMClose = xf86OSPMOpen();
-#endif
-
-    if (xorgHWAccess)
-	xf86EnableIO();
-    xf86AccessEnter();
-    xf86EnterServerState(SETUP);
-    for (i = 0; i < xf86NumScreens; i++) {
-      xf86Screens[i]->vtSema = TRUE;
-      if (!xf86Screens[i]->EnterVT(i, 0))
-	  FatalError("EnterVT failed for screen %d\n", i);
-    }
-    xf86EnterServerState(OPERATING);
-    for (i = 0; i < xf86NumScreens; i++) {
-      if (xf86Screens[i]->EnableDisableFBAccess)
-	(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);
-    }
-
-    /* Turn screen saver off when switching back */
-    dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
-
-    pInfo = xf86InputDevs;
-    while (pInfo) {
-      if (pInfo->dev)
-          EnableDevice(pInfo->dev, TRUE);
-      pInfo = pInfo->next;
-    }
-
-    for (ih = InputHandlers; ih; ih = ih->next)
-      xf86EnableInputHandler(ih);
-
-    xf86UnblockSIGIO(prevSIGIO);
-  }
-}
-
-
-/* Input handler registration */
-
-static pointer
-addInputHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih;
-
-    if (fd < 0 || !proc)
-	return NULL;
-
-    ih = xcalloc(sizeof(*ih), 1);
-    if (!ih)
-	return NULL;
-
-    ih->fd = fd;
-    ih->ihproc = proc;
-    ih->data = data;
-    ih->enabled = TRUE;
-
-    ih->next = InputHandlers;
-    InputHandlers = ih;
-
-    return ih;
-}
-
-pointer
-xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih = addInputHandler(fd, proc, data);
-
-    if (ih)
-        AddEnabledDevice(fd);
-    return ih;
-}
-
-pointer
-xf86AddGeneralHandler(int fd, InputHandlerProc proc, pointer data)
-{
-    IHPtr ih = addInputHandler(fd, proc, data);
-
-    if (ih)
-        AddGeneralSocket(fd);
-    return ih;
-}
-
-static void
-removeInputHandler(IHPtr ih)
-{
-    IHPtr p;
-
-    if (ih == InputHandlers)
-	InputHandlers = ih->next;
-    else {
-	p = InputHandlers;
-	while (p && p->next != ih)
-	    p = p->next;
-	if (ih)
-	    p->next = ih->next;
-    }
-    xfree(ih);
-}
-
-int
-xf86RemoveInputHandler(pointer handler)
-{
-    IHPtr ih;
-    int fd;
-
-    if (!handler)
-	return -1;
-
-    ih = handler;
-    fd = ih->fd;
-
-    if (ih->fd >= 0)
-	RemoveEnabledDevice(ih->fd);
-    removeInputHandler(ih);
-
-    return fd;
-}
-
-int
-xf86RemoveGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-    int fd;
-
-    if (!handler)
-	return -1;
-
-    ih = handler;
-    fd = ih->fd;
-
-    if (ih->fd >= 0)
-	RemoveGeneralSocket(ih->fd);
-    removeInputHandler(ih);
-
-    return fd;
-}
-
-void
-xf86DisableInputHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = FALSE;
-    if (ih->fd >= 0)
-	RemoveEnabledDevice(ih->fd);
-}
-
-void
-xf86DisableGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = FALSE;
-    if (ih->fd >= 0)
-	RemoveGeneralSocket(ih->fd);
-}
-
-void
-xf86EnableInputHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = TRUE;
-    if (ih->fd >= 0)
-	AddEnabledDevice(ih->fd);
-}
-
-void
-xf86EnableGeneralHandler(pointer handler)
-{
-    IHPtr ih;
-
-    if (!handler)
-	return;
-
-    ih = handler;
-    ih->enabled = TRUE;
-    if (ih->fd >= 0)
-	AddGeneralSocket(ih->fd);
-}
-
-/*
- * As used currently by the DRI, the return value is ignored.
- */
-Bool
-xf86EnableVTSwitch(Bool new)
-{
-    static Bool def = TRUE;
-    Bool old;
-
-    old = VTSwitchEnabled;
-    if (!new) {
-	/* Disable VT switching */
-	def = VTSwitchEnabled;
-	VTSwitchEnabled = FALSE;
-    } else {
-	/* Restore VT switching to default */
-	VTSwitchEnabled = def;
-    }
-    return old;
-}
-
-void
-DDXRingBell(int volume, int pitch, int duration) {
-    xf86OSRingBell(volume, pitch, duration);
-}
+/*

+ * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.

+ *

+ * Permission to use, copy, modify, distribute, and sell this software and its

+ * documentation for any purpose is hereby granted without fee, provided that

+ * the above copyright notice appear in all copies and that both that

+ * copyright notice and this permission notice appear in supporting

+ * documentation, and that the name of Thomas Roell not be used in

+ * advertising or publicity pertaining to distribution of the software without

+ * specific, written prior permission.  Thomas Roell makes no representations

+ * about the suitability of this software for any purpose.  It is provided

+ * "as is" without express or implied warranty.

+ *

+ * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,

+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO

+ * EVENT SHALL THOMAS ROELL BE LIABLE 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.

+ *

+ */

+/*

+ * Copyright (c) 1994-2003 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).

+ */

+

+/* [JCH-96/01/21] Extended std reverse map to four buttons. */

+

+#ifdef HAVE_XORG_CONFIG_H

+#include <xorg-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xpoll.h>

+#include <X11/Xproto.h>

+#include "misc.h"

+#include "compiler.h"

+#include "xf86.h"

+#include "xf86Priv.h"

+#define XF86_OS_PRIVS

+#include "xf86_OSlib.h"

+#include <X11/keysym.h>

+

+#ifdef XFreeXDGA

+#include "dgaproc.h"

+#endif

+

+#include <X11/extensions/XI.h>

+#include <X11/extensions/XIproto.h>

+#include "inputstr.h"

+#include "xf86Xinput.h"

+

+#include "mi.h"

+#include "mipointer.h"

+

+#include "xkbsrv.h"

+#include "xkbstr.h"

+

+#ifdef DPMSExtension

+#include <X11/extensions/dpmsconst.h>

+#include "dpmsproc.h"

+#endif

+

+/*

+ * This is a toggling variable:

+ *  FALSE = No VT switching keys have been pressed last time around

+ *  TRUE  = Possible VT switch Pending

+ * (DWH - 12/2/93)

+ *

+ * This has been generalised to work with Linux and *BSD+syscons (DHD)

+ */

+

+Bool VTSwitchEnabled = TRUE;		/* Allows run-time disabling for

+                                         *BSD and for avoiding VT

+                                         switches when using the DRI

+                                         automatic full screen mode.*/

+

+extern fd_set EnabledDevices;

+

+#ifdef XF86PM

+extern void (*xf86OSPMClose)(void);

+#endif

+

+static void xf86VTSwitch(void);

+

+/*

+ * Allow arbitrary drivers or other XFree86 code to register with our main

+ * Wakeup handler.

+ */

+typedef struct x_IHRec {

+    int			fd;

+    InputHandlerProc	ihproc;

+    pointer		data;

+    Bool		enabled;

+    struct x_IHRec *	next;

+} IHRec, *IHPtr;

+

+static IHPtr InputHandlers = NULL;

+

+

+Bool

+LegalModifier(unsigned int key, DeviceIntPtr pDev)

+{

+    return TRUE;

+}

+

+/*

+ * TimeSinceLastInputEvent --

+ *      Function used for screensaver purposes by the os module. Returns the

+ *      time in milliseconds since there last was any input.

+ */

+int

+TimeSinceLastInputEvent(void)

+{

+  if (xf86Info.lastEventTime == 0) {

+    xf86Info.lastEventTime = GetTimeInMillis();

+  }

+  return GetTimeInMillis() - xf86Info.lastEventTime;

+}

+

+/*

+ * SetTimeSinceLastInputEvent --

+ *      Set the lastEventTime to now.

+ */

+void

+SetTimeSinceLastInputEvent(void)

+{

+  xf86Info.lastEventTime = GetTimeInMillis();

+}

+

+/*

+ * ProcessInputEvents --

+ *      Retrieve all waiting input events and pass them to DIX in their

+ *      correct chronological order. Only reads from the system pointer

+ *      and keyboard.

+ */

+void

+ProcessInputEvents (void)

+{

+  int x, y;

+

+  mieqProcessInputEvents();

+

+  /* FIXME: This is a problem if we have multiple pointers */

+  miPointerGetPosition(inputInfo.pointer, &x, &y);

+  xf86SetViewport(xf86Info.currentScreen, x, y);

+}

+

+/*

+ * Handle keyboard events that cause some kind of "action"

+ * (i.e., server termination, video mode changes, VT switches, etc.)

+ */

+void

+xf86ProcessActionEvent(ActionEvent action, void *arg)

+{

+    DebugF("ProcessActionEvent(%d,%x)\n", (int) action, arg);

+    switch (action) {

+    case ACTION_TERMINATE:

+	if (!xf86Info.dontZap) {

+#ifdef XFreeXDGA

+	    DGAShutdown();

+#endif

+	    GiveUp(0);

+	}

+	break;

+    case ACTION_NEXT_MODE:

+	if (!xf86Info.dontZoom)

+	    xf86ZoomViewport(xf86Info.currentScreen,  1);

+	break;

+    case ACTION_PREV_MODE:

+	if (!xf86Info.dontZoom)

+	    xf86ZoomViewport(xf86Info.currentScreen, -1);

+	break;

+    case ACTION_SWITCHSCREEN:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && arg) {

+	    int vtno = *((int *) arg);

+

+	    if (vtno != xf86Info.vtno) {

+		if (!xf86VTActivate(vtno)) {

+		    ErrorF("Failed to switch from vt%02d to vt%02d: %s\n",

+			   xf86Info.vtno, vtno, strerror(errno));

+		}

+	    }

+	}

+	break;

+    case ACTION_SWITCHSCREEN_NEXT:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch) {

+	    if (!xf86VTActivate(xf86Info.vtno + 1)) {

+		/* If first try failed, assume this is the last VT and

+		 * try wrapping around to the first vt.

+		 */

+		if (!xf86VTActivate(1)) {

+		    ErrorF("Failed to switch from vt%02d to next vt: %s\n",

+			   xf86Info.vtno, strerror(errno));

+		}

+	    }

+	}

+	break;

+    case ACTION_SWITCHSCREEN_PREV:

+	if (VTSwitchEnabled && !xf86Info.dontVTSwitch && xf86Info.vtno > 0) {

+	    if (!xf86VTActivate(xf86Info.vtno - 1)) {

+		/* Don't know what the maximum VT is, so can't wrap around */

+		ErrorF("Failed to switch from vt%02d to previous vt: %s\n",

+		       xf86Info.vtno, strerror(errno));

+	    }

+	}

+	break;

+    default:

+	break;

+    }

+}

+

+/*

+ * xf86Wakeup --

+ *      Os wakeup handler.

+ */

+

+/* ARGSUSED */

+void

+xf86Wakeup(pointer blockData, int err, pointer pReadmask)

+{

+    fd_set* LastSelectMask = (fd_set*)pReadmask;

+    fd_set devicesWithInput;

+    InputInfoPtr pInfo;

+

+    if (err >= 0) {

+

+	XFD_ANDSET(&devicesWithInput, LastSelectMask, &EnabledDevices);

+	if (XFD_ANYSET(&devicesWithInput)) {

+	    pInfo = xf86InputDevs;

+	    while (pInfo) {

+		if (pInfo->read_input && pInfo->fd >= 0 &&

+		    (FD_ISSET(pInfo->fd, &devicesWithInput) != 0)) {

+		    int sigstate = xf86BlockSIGIO();

+

+		    /*

+		     * Remove the descriptior from the set because more than one

+		     * device may share the same file descriptor.

+		     */

+		    FD_CLR(pInfo->fd, &devicesWithInput);

+

+		    pInfo->read_input(pInfo);

+		    xf86UnblockSIGIO(sigstate);

+		}

+		pInfo = pInfo->next;

+	    }

+	}

+    }

+

+    if (err >= 0) { /* we don't want the handlers called if select() */

+	IHPtr ih;   /* returned with an error condition, do we?      */

+	

+	for (ih = InputHandlers; ih; ih = ih->next) {

+	    if (ih->enabled && ih->fd >= 0 && ih->ihproc &&

+		(FD_ISSET(ih->fd, ((fd_set *)pReadmask)) != 0)) {

+		ih->ihproc(ih->fd, ih->data);

+	    }

+	}

+    }

+

+    if (xf86VTSwitchPending()) xf86VTSwitch();

+}

+

+

+/*

+ * xf86SigioReadInput --

+ *    signal handler for the SIGIO signal.

+ */

+static void

+xf86SigioReadInput(int fd, void *closure)

+{

+    int errno_save = errno;

+    InputInfoPtr pInfo = closure;

+

+    pInfo->read_input(pInfo);

+

+    errno = errno_save;

+}

+

+/*

+ * xf86AddEnabledDevice --

+ *

+ */

+void

+xf86AddEnabledDevice(InputInfoPtr pInfo)

+{

+    if (!xf86InstallSIGIOHandler (pInfo->fd, xf86SigioReadInput, pInfo)) {

+	AddEnabledDevice(pInfo->fd);

+    }

+}

+

+/*

+ * xf86RemoveEnabledDevice --

+ *

+ */

+void

+xf86RemoveEnabledDevice(InputInfoPtr pInfo)

+{

+    if (!xf86RemoveSIGIOHandler (pInfo->fd)) {

+	RemoveEnabledDevice(pInfo->fd);

+    }

+}

+

+static int *xf86SignalIntercept = NULL;

+

+void

+xf86InterceptSignals(int *signo)

+{

+    if ((xf86SignalIntercept = signo))

+	*signo = -1;

+}

+

+static void (*xf86SigIllHandler)(void) = NULL;

+

+void

+xf86InterceptSigIll(void (*sigillhandler)(void))

+{

+    xf86SigIllHandler = sigillhandler;

+}

+

+/*

+ * xf86SigWrapper --

+ *    Catch unexpected signals and exit or continue cleanly.

+ */

+int

+xf86SigWrapper(int signo)

+{

+  if ((signo == SIGILL) && xf86SigIllHandler) {

+    (*xf86SigIllHandler)();

+    return 0; /* continue */

+  }

+

+  if (xf86SignalIntercept && (*xf86SignalIntercept < 0)) {

+    *xf86SignalIntercept = signo;

+    return 0; /* continue */

+  }

+

+  xf86Info.caughtSignal = TRUE;

+  return 1; /* abort */

+}

+

+/*

+ * xf86PrintBacktrace --

+ *    Print a stack backtrace for debugging purposes.

+ */

+void

+xf86PrintBacktrace(void)

+{

+    xorg_backtrace();

+}

+

+#define KeyPressed(k) (keyc->postdown[k >> 3] & (1 << (k & 7)))

+

+static void

+xf86ReleaseKeys(DeviceIntPtr pDev)

+{

+    KeyClassPtr keyc;

+    int i, j, nevents, sigstate;

+

+    if (!pDev || !pDev->key)

+        return;

+

+    keyc = pDev->key;

+

+    /*

+     * Hmm... here is the biggest hack of every time !

+     * It may be possible that a switch-vt procedure has finished BEFORE

+     * you released all keys neccessary to do this. That peculiar behavior

+     * can fool the X-server pretty much, cause it assumes that some keys

+     * were not released. TWM may stuck alsmost completly....

+     * OK, what we are doing here is after returning from the vt-switch

+     * exeplicitely unrelease all keyboard keys before the input-devices

+     * are reenabled.

+     */

+

+    for (i = keyc->xkbInfo->desc->min_key_code;

+         i < keyc->xkbInfo->desc->max_key_code;

+         i++) {

+        if (KeyPressed(i)) {

+            sigstate = xf86BlockSIGIO ();

+            nevents = GetKeyboardEvents(xf86Events, pDev, KeyRelease, i);

+            for (j = 0; j < nevents; j++)

+                mieqEnqueue(pDev, (InternalEvent*)(xf86Events + j)->event);

+            xf86UnblockSIGIO(sigstate);

+        }

+    }

+}

+

+/*

+ * xf86VTSwitch --

+ *      Handle requests for switching the vt.

+ */

+static void

+xf86VTSwitch(void)

+{

+  int i, prevSIGIO;

+  InputInfoPtr pInfo;

+  IHPtr ih;

+

+  DebugF("xf86VTSwitch()\n");

+

+#ifdef XFreeXDGA

+  if(!DGAVTSwitch())

+	return;

+#endif

+

+  /*

+   * Since all screens are currently all in the same state it is sufficient

+   * check the first.  This might change in future.

+   */

+  if (xf86Screens[0]->vtSema) {

+

+    DebugF("xf86VTSwitch: Leaving, xf86Exiting is %s\n",

+	   BOOLTOSTRING((dispatchException & DE_TERMINATE) ? TRUE : FALSE));

+#ifdef DPMSExtension

+    if (DPMSPowerLevel != DPMSModeOn)

+	DPMSSet(serverClient, DPMSModeOn);

+#endif

+    for (i = 0; i < xf86NumScreens; i++) {

+      if (!(dispatchException & DE_TERMINATE))

+	if (xf86Screens[i]->EnableDisableFBAccess)

+	  (*xf86Screens[i]->EnableDisableFBAccess) (i, FALSE);

+    }

+

+    /*

+     * Keep the order: Disable Device > LeaveVT

+     *                        EnterVT > EnableDevice

+     */

+    for (ih = InputHandlers; ih; ih = ih->next)

+      xf86DisableInputHandler(ih);

+    for (pInfo = xf86InputDevs; pInfo; pInfo = pInfo->next) {

+      if (pInfo->dev) {

+          xf86ReleaseKeys(pInfo->dev);

+          ProcessInputEvents();

+          DisableDevice(pInfo->dev, TRUE);

+      }

+    }

+    xf86EnterServerState(SETUP);

+    for (i = 0; i < xf86NumScreens; i++)

+	xf86Screens[i]->LeaveVT(i, 0);

+

+    xf86AccessLeave();      /* We need this here, otherwise */

+

+    if (!xf86VTSwitchAway()) {

+      /*

+       * switch failed

+       */

+

+      DebugF("xf86VTSwitch: Leave failed\n");

+      prevSIGIO = xf86BlockSIGIO();

+      xf86AccessEnter();

+      xf86EnterServerState(SETUP);

+      for (i = 0; i < xf86NumScreens; i++) {

+	if (!xf86Screens[i]->EnterVT(i, 0))

+	  FatalError("EnterVT failed for screen %d\n", i);

+      }

+      xf86EnterServerState(OPERATING);

+      if (!(dispatchException & DE_TERMINATE)) {

+	for (i = 0; i < xf86NumScreens; i++) {

+	  if (xf86Screens[i]->EnableDisableFBAccess)

+	    (*xf86Screens[i]->EnableDisableFBAccess) (i, TRUE);

+	}

+      }

+      dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);

+

+      pInfo = xf86InputDevs;

+      while (pInfo) {

+        if (pInfo->dev)

+            EnableDevice(pInfo->dev, TRUE);

+	pInfo = pInfo->next;

+      }

+      for (ih = InputHandlers; ih; ih = ih->next)

+        xf86EnableInputHandler(ih);

+

+      xf86UnblockSIGIO(prevSIGIO);

+

+    } else {

+#ifdef XF86PM

+	  if (xf86OSPMClose)

+	      xf86OSPMClose();

+	  xf86OSPMClose = NULL;

+#endif

+

+	for (i = 0; i < xf86NumScreens; i++) {

+ 	    /*

+ 	     * zero all access functions to

+ 	     * trap calls when switched away.

+ 	     */

+	    xf86Screens[i]->vtSema = FALSE;

+	}

+	if (xorgHWAccess)

+	    xf86DisableIO();

+    }

+  } else {

+

+    DebugF("xf86VTSwitch: Entering\n");

+    if (!xf86VTSwitchTo()) return;

+

+    prevSIGIO = xf86BlockSIGIO();

+#ifdef XF86PM

+    xf86OSPMClose = xf86OSPMOpen();

+#endif

+

+    if (xorgHWAccess)

+	xf86EnableIO();

+    xf86AccessEnter();

+    xf86EnterServerState(SETUP);

+    for (i = 0; i < xf86NumScreens; i++) {

+      xf86Screens[i]->vtSema = TRUE;

+      if (!xf86Screens[i]->EnterVT(i, 0))

+	  FatalError("EnterVT failed for screen %d\n", i);

+    }

+    xf86EnterServerState(OPERATING);

+    for (i = 0; i < xf86NumScreens; i++) {

+      if (xf86Screens[i]->EnableDisableFBAccess)

+	(*xf86Screens[i]->EnableDisableFBAccess)(i, TRUE);

+    }

+

+    /* Turn screen saver off when switching back */

+    dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);

+

+    pInfo = xf86InputDevs;

+    while (pInfo) {

+      if (pInfo->dev)

+          EnableDevice(pInfo->dev, TRUE);

+      pInfo = pInfo->next;

+    }

+

+    for (ih = InputHandlers; ih; ih = ih->next)

+      xf86EnableInputHandler(ih);

+

+    xf86UnblockSIGIO(prevSIGIO);

+  }

+}

+

+

+/* Input handler registration */

+

+static pointer

+addInputHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih;

+

+    if (fd < 0 || !proc)

+	return NULL;

+

+    ih = xcalloc(sizeof(*ih), 1);

+    if (!ih)

+	return NULL;

+

+    ih->fd = fd;

+    ih->ihproc = proc;

+    ih->data = data;

+    ih->enabled = TRUE;

+

+    ih->next = InputHandlers;

+    InputHandlers = ih;

+

+    return ih;

+}

+

+pointer

+xf86AddInputHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih = addInputHandler(fd, proc, data);

+

+    if (ih)

+        AddEnabledDevice(fd);

+    return ih;

+}

+

+pointer

+xf86AddGeneralHandler(int fd, InputHandlerProc proc, pointer data)

+{

+    IHPtr ih = addInputHandler(fd, proc, data);

+

+    if (ih)

+        AddGeneralSocket(fd);

+    return ih;

+}

+

+static void

+removeInputHandler(IHPtr ih)

+{

+    IHPtr p;

+

+    if (ih == InputHandlers)

+	InputHandlers = ih->next;

+    else {

+	p = InputHandlers;

+	while (p && p->next != ih)

+	    p = p->next;

+	if (ih)

+	    p->next = ih->next;

+    }

+    xfree(ih);

+}

+

+int

+xf86RemoveInputHandler(pointer handler)

+{

+    IHPtr ih;

+    int fd;

+

+    if (!handler)

+	return -1;

+

+    ih = handler;

+    fd = ih->fd;

+

+    if (ih->fd >= 0)

+	RemoveEnabledDevice(ih->fd);

+    removeInputHandler(ih);

+

+    return fd;

+}

+

+int

+xf86RemoveGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+    int fd;

+

+    if (!handler)

+	return -1;

+

+    ih = handler;

+    fd = ih->fd;

+

+    if (ih->fd >= 0)

+	RemoveGeneralSocket(ih->fd);

+    removeInputHandler(ih);

+

+    return fd;

+}

+

+void

+xf86DisableInputHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = FALSE;

+    if (ih->fd >= 0)

+	RemoveEnabledDevice(ih->fd);

+}

+

+void

+xf86DisableGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = FALSE;

+    if (ih->fd >= 0)

+	RemoveGeneralSocket(ih->fd);

+}

+

+void

+xf86EnableInputHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = TRUE;

+    if (ih->fd >= 0)

+	AddEnabledDevice(ih->fd);

+}

+

+void

+xf86EnableGeneralHandler(pointer handler)

+{

+    IHPtr ih;

+

+    if (!handler)

+	return;

+

+    ih = handler;

+    ih->enabled = TRUE;

+    if (ih->fd >= 0)

+	AddGeneralSocket(ih->fd);

+}

+

+/*

+ * As used currently by the DRI, the return value is ignored.

+ */

+Bool

+xf86EnableVTSwitch(Bool new)

+{

+    static Bool def = TRUE;

+    Bool old;

+

+    old = VTSwitchEnabled;

+    if (!new) {

+	/* Disable VT switching */

+	def = VTSwitchEnabled;

+	VTSwitchEnabled = FALSE;

+    } else {

+	/* Restore VT switching to default */

+	VTSwitchEnabled = def;

+    }

+    return old;

+}

+

+void

+DDXRingBell(int volume, int pitch, int duration) {

+    xf86OSRingBell(volume, pitch, duration);

+}

diff --git a/xorg-server/hw/xfree86/common/xf86VGAarbiter.c b/xorg-server/hw/xfree86/common/xf86VGAarbiter.c
index b24099811..a3eccdfff 100644
--- a/xorg-server/hw/xfree86/common/xf86VGAarbiter.c
+++ b/xorg-server/hw/xfree86/common/xf86VGAarbiter.c
@@ -1,1178 +1,1113 @@
-/*
- * This code was stolen from RAC and adapted to control the legacy vga
- * interface.
- *
- *
- * Copyright (c) 2007 Paulo R. Zanoni, Tiago Vignatti
- *
- * 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 AUTHORS OR COPYRIGHT
- * HOLDERS 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.
- *
- */
-
-#include "xorg-config.h"
-
-#include "xf86VGAarbiter.h"
-
-#ifdef HAVE_PCI_DEVICE_VGAARB_INIT
-#include "xf86VGAarbiterPriv.h"
-#include "xf86Bus.h"
-#include "xf86Priv.h"
-#include "pciaccess.h"
-
-#ifdef DEBUG
-#error "no, really, you dont want to do this"
-#define DPRINT_S(x,y) ErrorF(x ": %i\n",y);
-#define DPRINT(x) ErrorF(x "\n");
-#else
-#define DPRINT_S(x,y)
-#define DPRINT(x)
-#endif
-
-static GCFuncs VGAarbiterGCFuncs = {
-    VGAarbiterValidateGC, VGAarbiterChangeGC, VGAarbiterCopyGC,
-    VGAarbiterDestroyGC, VGAarbiterChangeClip, VGAarbiterDestroyClip,
-    VGAarbiterCopyClip
-};
-
-static GCOps VGAarbiterGCOps = {
-    VGAarbiterFillSpans, VGAarbiterSetSpans, VGAarbiterPutImage,
-    VGAarbiterCopyArea, VGAarbiterCopyPlane, VGAarbiterPolyPoint,
-    VGAarbiterPolylines, VGAarbiterPolySegment, VGAarbiterPolyRectangle,
-    VGAarbiterPolyArc, VGAarbiterFillPolygon, VGAarbiterPolyFillRect,
-    VGAarbiterPolyFillArc, VGAarbiterPolyText8, VGAarbiterPolyText16,
-    VGAarbiterImageText8, VGAarbiterImageText16, VGAarbiterImageGlyphBlt,
-    VGAarbiterPolyGlyphBlt, VGAarbiterPushPixels,
-    {NULL}      /* devPrivate */
-};
-
-static miPointerSpriteFuncRec VGAarbiterSpriteFuncs = {
-    VGAarbiterSpriteRealizeCursor, VGAarbiterSpriteUnrealizeCursor,
-    VGAarbiterSpriteSetCursor, VGAarbiterSpriteMoveCursor,
-    VGAarbiterDeviceCursorInitialize, VGAarbiterDeviceCursorCleanup
-};
-
-static int VGAarbiterKeyIndex;
-static DevPrivateKey VGAarbiterScreenKey = &VGAarbiterKeyIndex;
-static int VGAarbiterGCIndex;
-static DevPrivateKey VGAarbiterGCKey = &VGAarbiterGCIndex;
-
-static int vga_no_arb = 0;
-void
-xf86VGAarbiterInit(void)
-{
-    if (pci_device_vgaarb_init() != 0) {
-	vga_no_arb = 1;
-        xf86Msg(X_WARNING, "VGA arbiter: cannot open kernel arbiter, no multi-card support\n");
-    }
-}
-
-void
-xf86VGAarbiterFini(void)
-{
-    if (vga_no_arb)
-	return;
-    pci_device_vgaarb_fini();
-}
-
-void
-xf86VGAarbiterLock(ScrnInfoPtr pScrn)
-{
-    if (vga_no_arb)
-	return;
-    pci_device_vgaarb_set_target(pScrn->vgaDev);
-    pci_device_vgaarb_lock();
-}
-
-void
-xf86VGAarbiterUnlock(ScrnInfoPtr pScrn)
-{
-    if (vga_no_arb)
-	return;
-    pci_device_vgaarb_unlock();
-}
-
-Bool xf86VGAarbiterAllowDRI(ScreenPtr pScreen)
-{
-    int vga_count;
-    int rsrc_decodes;
-    ScrnInfoPtr         pScrn = xf86Screens[pScreen->myNum];
-
-    if (vga_no_arb)
-	return TRUE;
-
-    pci_device_vgaarb_get_info(pScrn->vgaDev, &vga_count, &rsrc_decodes);
-    if (vga_count > 1) {
-        if (rsrc_decodes) {
-            return FALSE;
-        }
-    }
-    return TRUE;
-}
-
-void
-xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn)
-{
-    struct pci_device *dev;
-    EntityPtr pEnt;
-
-    if (vga_no_arb)
-	return;
-
-    pEnt = xf86Entities[pScrn->entityList[0]];
-    if (pEnt->bus.type != BUS_PCI)
-	return;
-
-    dev = pEnt->bus.id.pci;
-    pScrn->vgaDev = dev;
-}
-
-void
-xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn)
-{
-    if (vga_no_arb)
-	return;
-    pci_device_vgaarb_decodes(VGA_ARB_RSRC_LEGACY_MEM | VGA_ARB_RSRC_LEGACY_IO);
-}
-
-Bool
-xf86VGAarbiterWrapFunctions(void)
-{
-    ScrnInfoPtr pScrn;
-    VGAarbiterScreenPtr pScreenPriv;
-    miPointerScreenPtr PointPriv;
-#ifdef RENDER
-    PictureScreenPtr    ps;
-#endif
-    ScreenPtr pScreen;
-    int vga_count, i;
-
-    if (vga_no_arb)
-        return FALSE;
-
-    /*
-     * we need to wrap the arbiter if we have more than
-     * one VGA card - hotplug cries.
-     */
-    pci_device_vgaarb_get_info(NULL, &vga_count, NULL);
-    if (vga_count < 2 || !xf86Screens)
-        return FALSE;
-
-    xf86Msg(X_INFO,"Found %d VGA devices: arbiter wrapping enabled\n",
-            vga_count);
-
-    for (i = 0; i < xf86NumScreens; i++) {
-        pScreen = xf86Screens[i]->pScreen;
-#ifdef RENDER
-        ps = GetPictureScreenIfSet(pScreen);
-#endif
-        pScrn = xf86Screens[pScreen->myNum];
-        PointPriv = dixLookupPrivate(&pScreen->devPrivates, miPointerScreenKey);
-
-        DPRINT_S("VGAarbiterWrapFunctions",pScreen->myNum);
-
-        if (!dixRequestPrivate(VGAarbiterGCKey, sizeof(VGAarbiterGCRec)))
-            return FALSE;
-
-        if (!(pScreenPriv = xalloc(sizeof(VGAarbiterScreenRec))))
-            return FALSE;
-
-        dixSetPrivate(&pScreen->devPrivates, VGAarbiterScreenKey, pScreenPriv);
-
-        WRAP_SCREEN(CloseScreen, VGAarbiterCloseScreen);
-        WRAP_SCREEN(SaveScreen, VGAarbiterSaveScreen);
-        WRAP_SCREEN(WakeupHandler, VGAarbiterWakeupHandler);
-        WRAP_SCREEN(BlockHandler, VGAarbiterBlockHandler);
-        WRAP_SCREEN(CreateGC, VGAarbiterCreateGC);
-        WRAP_SCREEN(GetImage, VGAarbiterGetImage);
-        WRAP_SCREEN(GetSpans, VGAarbiterGetSpans);
-        WRAP_SCREEN(SourceValidate, VGAarbiterSourceValidate);
-        WRAP_SCREEN(CopyWindow, VGAarbiterCopyWindow);
-        WRAP_SCREEN(ClearToBackground, VGAarbiterClearToBackground);
-        WRAP_SCREEN(CreatePixmap, VGAarbiterCreatePixmap);
-        WRAP_SCREEN(StoreColors, VGAarbiterStoreColors);
-        WRAP_SCREEN(DisplayCursor, VGAarbiterDisplayCursor);
-        WRAP_SCREEN(RealizeCursor, VGAarbiterRealizeCursor);
-        WRAP_SCREEN(UnrealizeCursor, VGAarbiterUnrealizeCursor);
-        WRAP_SCREEN(RecolorCursor, VGAarbiterRecolorCursor);
-        WRAP_SCREEN(SetCursorPosition, VGAarbiterSetCursorPosition);
-#ifdef RENDER
-        WRAP_PICT(Composite,VGAarbiterComposite);
-        WRAP_PICT(Glyphs,VGAarbiterGlyphs);
-        WRAP_PICT(CompositeRects,VGAarbiterCompositeRects);
-#endif
-        WRAP_SCREEN_INFO(AdjustFrame, VGAarbiterAdjustFrame);
-        WRAP_SCREEN_INFO(SwitchMode, VGAarbiterSwitchMode);
-        WRAP_SCREEN_INFO(EnterVT, VGAarbiterEnterVT);
-        WRAP_SCREEN_INFO(LeaveVT, VGAarbiterLeaveVT);
-        WRAP_SCREEN_INFO(FreeScreen, VGAarbiterFreeScreen);
-        WRAP_SPRITE;
-    }
-
-    return TRUE;
-}
-
-/* Screen funcs */
-static Bool
-VGAarbiterCloseScreen (int i, ScreenPtr pScreen)
-{
-    Bool val;
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-    miPointerScreenPtr PointPriv = (miPointerScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, miPointerScreenKey);
-#ifdef RENDER
-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
-#endif
-
-    DPRINT_S("VGAarbiterCloseScreen",pScreen->myNum);
-    UNWRAP_SCREEN(CreateGC);
-    UNWRAP_SCREEN(CloseScreen);
-    UNWRAP_SCREEN(GetImage);
-    UNWRAP_SCREEN(GetSpans);
-    UNWRAP_SCREEN(SourceValidate);
-    UNWRAP_SCREEN(CopyWindow);
-    UNWRAP_SCREEN(ClearToBackground);
-    UNWRAP_SCREEN(SaveScreen);
-    UNWRAP_SCREEN(StoreColors);
-    UNWRAP_SCREEN(DisplayCursor);
-    UNWRAP_SCREEN(RealizeCursor);
-    UNWRAP_SCREEN(UnrealizeCursor);
-    UNWRAP_SCREEN(RecolorCursor);
-    UNWRAP_SCREEN(SetCursorPosition);
-#ifdef RENDER
-    UNWRAP_PICT(Composite);
-    UNWRAP_PICT(Glyphs);
-    UNWRAP_PICT(CompositeRects);
-#endif
-    UNWRAP_SCREEN_INFO(AdjustFrame);
-    UNWRAP_SCREEN_INFO(SwitchMode);
-    UNWRAP_SCREEN_INFO(EnterVT);
-    UNWRAP_SCREEN_INFO(LeaveVT);
-    UNWRAP_SCREEN_INFO(FreeScreen);
-    UNWRAP_SPRITE;
-
-    xfree ((pointer) pScreenPriv);
-    xf86VGAarbiterLock(xf86Screens[i]);
-    val = (*pScreen->CloseScreen) (i, pScreen);
-    xf86VGAarbiterUnlock(xf86Screens[i]);
-    return val;
-}
-
-static void
-VGAarbiterBlockHandler(int i,
-                       pointer blockData, pointer pTimeout, pointer pReadmask)
-{
-    ScreenPtr pScreen = screenInfo.screens[i];
-    SCREEN_PROLOG(BlockHandler);
-    VGAGet();
-    pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);
-    VGAPut();
-    SCREEN_EPILOG(BlockHandler, VGAarbiterBlockHandler);
-}
-
-static void
-VGAarbiterWakeupHandler(int i, pointer blockData, unsigned long result, pointer pReadmask)
-{
-    ScreenPtr pScreen = screenInfo.screens[i];
-    SCREEN_PROLOG(WakeupHandler);
-    VGAGet();
-    pScreen->WakeupHandler(i, blockData, result, pReadmask);
-    VGAPut();
-    SCREEN_EPILOG(WakeupHandler, VGAarbiterWakeupHandler);
-}
-
-static void
-VGAarbiterGetImage (
-    DrawablePtr pDrawable,
-    int sx, int sy, int w, int h,
-    unsigned int    format,
-    unsigned long   planemask,
-    char        *pdstLine
-    )
-{
-    ScreenPtr pScreen = pDrawable->pScreen;
-    DPRINT_S("VGAarbiterGetImage",pScreen->myNum);
-    SCREEN_PROLOG(GetImage);
-//    if (xf86Screens[pScreen->myNum]->vtSema) {
-    VGAGet();
-//    }
-    (*pScreen->GetImage) (pDrawable, sx, sy, w, h,
-              format, planemask, pdstLine);
-    VGAPut();
-    SCREEN_EPILOG (GetImage, VGAarbiterGetImage);
-}
-
-static void
-VGAarbiterGetSpans (
-    DrawablePtr pDrawable,
-    int     wMax,
-    DDXPointPtr ppt,
-    int     *pwidth,
-    int     nspans,
-    char    *pdstStart
-    )
-{
-    ScreenPtr       pScreen = pDrawable->pScreen;
-
-    DPRINT_S("VGAarbiterGetSpans",pScreen->myNum);
-    SCREEN_PROLOG (GetSpans);
-    VGAGet();
-    (*pScreen->GetSpans) (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);
-    VGAPut();
-    SCREEN_EPILOG (GetSpans, VGAarbiterGetSpans);
-}
-
-static void
-VGAarbiterSourceValidate (
-    DrawablePtr pDrawable,
-    int x, int y, int width, int height )
-{
-    ScreenPtr   pScreen = pDrawable->pScreen;
-    DPRINT_S("VGAarbiterSourceValidate",pScreen->myNum);
-    SCREEN_PROLOG (SourceValidate);
-    VGAGet();
-    if (pScreen->SourceValidate)
-    (*pScreen->SourceValidate) (pDrawable, x, y, width, height);
-    VGAPut();
-    SCREEN_EPILOG (SourceValidate, VGAarbiterSourceValidate);
-}
-
-static void
-VGAarbiterCopyWindow(
-    WindowPtr pWin,
-    DDXPointRec ptOldOrg,
-    RegionPtr prgnSrc )
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    DPRINT_S("VGAarbiterCopyWindow",pScreen->myNum);
-    SCREEN_PROLOG (CopyWindow);
-    VGAGet();
-    (*pScreen->CopyWindow) (pWin, ptOldOrg, prgnSrc);
-    VGAPut();
-    SCREEN_EPILOG (CopyWindow, VGAarbiterCopyWindow);
-}
-
-static void
-VGAarbiterClearToBackground (
-    WindowPtr pWin,
-    int x, int y,
-    int w, int h,
-    Bool generateExposures )
-{
-    ScreenPtr pScreen = pWin->drawable.pScreen;
-
-    DPRINT_S("VGAarbiterClearToBackground",pScreen->myNum);
-    SCREEN_PROLOG ( ClearToBackground);
-    VGAGet();
-    (*pScreen->ClearToBackground) (pWin, x, y, w, h, generateExposures);
-    VGAPut();
-    SCREEN_EPILOG (ClearToBackground, VGAarbiterClearToBackground);
-}
-
-static PixmapPtr
-VGAarbiterCreatePixmap(ScreenPtr pScreen, int w, int h, int depth, unsigned usage_hint)
-{
-    PixmapPtr pPix;
-
-    DPRINT_S("VGAarbiterCreatePixmap",pScreen->myNum);
-    SCREEN_PROLOG ( CreatePixmap);
-    VGAGet();
-    pPix = (*pScreen->CreatePixmap) (pScreen, w, h, depth, usage_hint);
-    VGAPut();
-    SCREEN_EPILOG (CreatePixmap, VGAarbiterCreatePixmap);
-
-    return pPix;
-}
-
-static Bool
-VGAarbiterSaveScreen(ScreenPtr pScreen, Bool unblank)
-{
-    Bool val;
-
-    DPRINT_S("VGAarbiterSaveScreen",pScreen->myNum);
-    SCREEN_PROLOG (SaveScreen);
-    VGAGet();
-    val = (*pScreen->SaveScreen) (pScreen, unblank);
-    VGAPut();
-    SCREEN_EPILOG (SaveScreen, VGAarbiterSaveScreen);
-
-    return val;
-}
-
-static void
-VGAarbiterStoreColors (
-    ColormapPtr        pmap,
-    int                ndef,
-    xColorItem         *pdefs)
-{
-    ScreenPtr pScreen = pmap->pScreen;
-
-    DPRINT_S("VGAarbiterStoreColors",pScreen->myNum);
-    SCREEN_PROLOG (StoreColors);
-    VGAGet();
-    (*pScreen->StoreColors) (pmap,ndef,pdefs);
-    VGAPut();
-    SCREEN_EPILOG ( StoreColors, VGAarbiterStoreColors);
-}
-
-static void
-VGAarbiterRecolorCursor (
-    DeviceIntPtr pDev,
-    ScreenPtr pScreen,
-    CursorPtr pCurs,
-    Bool displayed
-    )
-{
-    DPRINT_S("VGAarbiterRecolorCursor",pScreen->myNum);
-    SCREEN_PROLOG (RecolorCursor);
-    VGAGet();
-    (*pScreen->RecolorCursor) (pDev, pScreen, pCurs, displayed);
-    VGAPut();
-    SCREEN_EPILOG ( RecolorCursor, VGAarbiterRecolorCursor);
-}
-
-static Bool
-VGAarbiterRealizeCursor (
-    DeviceIntPtr pDev,
-    ScreenPtr   pScreen,
-    CursorPtr   pCursor
-    )
-{
-    Bool val;
-
-    DPRINT_S("VGAarbiterRealizeCursor",pScreen->myNum);
-    SCREEN_PROLOG (RealizeCursor);
-    VGAGet();
-    val = (*pScreen->RealizeCursor) (pDev, pScreen,pCursor);
-    VGAPut();
-    SCREEN_EPILOG ( RealizeCursor, VGAarbiterRealizeCursor);
-    return val;
-}
-
-static Bool
-VGAarbiterUnrealizeCursor (
-    DeviceIntPtr pDev,
-    ScreenPtr   pScreen,
-    CursorPtr   pCursor
-    )
-{
-    Bool val;
-
-    DPRINT_S("VGAarbiterUnrealizeCursor",pScreen->myNum);
-    SCREEN_PROLOG (UnrealizeCursor);
-    VGAGet();
-    val = (*pScreen->UnrealizeCursor) (pDev, pScreen, pCursor);
-    VGAPut();
-    SCREEN_EPILOG ( UnrealizeCursor, VGAarbiterUnrealizeCursor);
-    return val;
-}
-
-static Bool
-VGAarbiterDisplayCursor (
-    DeviceIntPtr pDev,
-    ScreenPtr   pScreen,
-    CursorPtr   pCursor
-    )
-{
-    Bool val;
-
-    DPRINT_S("VGAarbiterDisplayCursor",pScreen->myNum);
-    SCREEN_PROLOG (DisplayCursor);
-    VGAGet();
-    val = (*pScreen->DisplayCursor) (pDev, pScreen, pCursor);
-    VGAPut();
-    SCREEN_EPILOG ( DisplayCursor, VGAarbiterDisplayCursor);
-    return val;
-}
-
-static Bool
-VGAarbiterSetCursorPosition (
-    DeviceIntPtr pDev,
-    ScreenPtr   pScreen,
-    int x, int y,
-    Bool generateEvent)
-{
-    Bool val;
-
-    DPRINT_S("VGAarbiterSetCursorPosition",pScreen->myNum);
-    SCREEN_PROLOG (SetCursorPosition);
-    VGAGet();
-    val = (*pScreen->SetCursorPosition) (pDev, pScreen, x, y, generateEvent);
-    VGAPut();
-    SCREEN_EPILOG ( SetCursorPosition, VGAarbiterSetCursorPosition);
-    return val;
-}
-
-static void
-VGAarbiterAdjustFrame(int index, int x, int y, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-
-    DPRINT_S("VGAarbiterAdjustFrame",index);
-    VGAGet();
-    (*pScreenPriv->AdjustFrame)(index, x, y, flags);
-    VGAPut();
-}
-
-static Bool
-VGAarbiterSwitchMode(int index, DisplayModePtr mode, int flags)
-{
-    Bool val;
-    ScreenPtr pScreen = screenInfo.screens[index];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-
-    DPRINT_S("VGAarbiterSwitchMode",index);
-    VGAGet();
-    val = (*pScreenPriv->SwitchMode)(index, mode, flags);
-    VGAPut();
-    return val;
-}
-
-static Bool
-VGAarbiterEnterVT(int index, int flags)
-{
-    Bool val;
-    ScreenPtr pScreen = screenInfo.screens[index];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-
-    DPRINT_S("VGAarbiterEnterVT",index);
-    VGAGet();
-    val = (*pScreenPriv->EnterVT)(index, flags);
-    VGAPut();
-    return val;
-}
-
-static void
-VGAarbiterLeaveVT(int index, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-
-    DPRINT_S("VGAarbiterLeaveVT",index);
-
-    VGAGet();
-    (*pScreenPriv->LeaveVT)(index, flags);
-    VGAPut();
-}
-
-static void
-VGAarbiterFreeScreen(int index, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(
-        &pScreen->devPrivates, VGAarbiterScreenKey);
-
-    DPRINT_S("VGAarbiterFreeScreen",index);
-
-    VGAGet();
-    (*pScreenPriv->FreeScreen)(index, flags);
-    VGAPut();
-}
-
-static Bool
-VGAarbiterCreateGC(GCPtr pGC)
-{
-    ScreenPtr    pScreen = pGC->pScreen;
-    VGAarbiterGCPtr pGCPriv = (VGAarbiterGCPtr)dixLookupPrivate(&pGC->devPrivates, VGAarbiterGCKey);
-    Bool         ret;
-
-    DPRINT_S("VGAarbiterCreateGC",pScreen->myNum);
-    SCREEN_PROLOG(CreateGC);
-    VGAGet();
-    ret = (*pScreen->CreateGC)(pGC);
-    VGAPut();
-    GC_WRAP(pGC);
-    SCREEN_EPILOG(CreateGC,VGAarbiterCreateGC);
-
-    return ret;
-}
-
-/* GC funcs */
-static void
-VGAarbiterValidateGC(
-   GCPtr         pGC,
-   unsigned long changes,
-   DrawablePtr   pDraw )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterValidateGC");
-    (*pGC->funcs->ValidateGC)(pGC, changes, pDraw);
-    GC_WRAP(pGC);
-}
-
-
-static void
-VGAarbiterDestroyGC(GCPtr pGC)
-{
-    GC_UNWRAP (pGC);
-    DPRINT("VGAarbiterDestroyGC");
-    (*pGC->funcs->DestroyGC)(pGC);
-    GC_WRAP (pGC);
-}
-
-static void
-VGAarbiterChangeGC (
-    GCPtr       pGC,
-    unsigned long   mask)
-{
-    GC_UNWRAP (pGC);
-    DPRINT("VGAarbiterChangeGC");
-    (*pGC->funcs->ChangeGC) (pGC, mask);
-    GC_WRAP (pGC);
-}
-
-static void
-VGAarbiterCopyGC (
-    GCPtr       pGCSrc,
-    unsigned long   mask,
-    GCPtr       pGCDst)
-{
-    GC_UNWRAP (pGCDst);
-    DPRINT("VGAarbiterCopyGC");
-    (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
-    GC_WRAP (pGCDst);
-}
-
-static void
-VGAarbiterChangeClip (
-    GCPtr   pGC,
-    int     type,
-    pointer pvalue,
-    int     nrects )
-{
-    GC_UNWRAP (pGC);
-    DPRINT("VGAarbiterChangeClip");
-    (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);
-    GC_WRAP (pGC);
-}
-
-static void
-VGAarbiterCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
-{
-    GC_UNWRAP (pgcDst);
-    DPRINT("VGAarbiterCopyClip");
-    (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
-    GC_WRAP (pgcDst);
-}
-
-static void
-VGAarbiterDestroyClip(GCPtr pGC)
-{
-    GC_UNWRAP (pGC);
-    DPRINT("VGAarbiterDestroyClip");
-    (* pGC->funcs->DestroyClip)(pGC);
-    GC_WRAP (pGC);
-}
-
-/* GC Ops */
-static void
-VGAarbiterFillSpans(
-    DrawablePtr pDraw,
-    GC      *pGC,
-    int     nInit,
-    DDXPointPtr pptInit,
-    int *pwidthInit,
-    int fSorted )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterFillSpans");
-    VGAGet_GC();
-    (*pGC->ops->FillSpans)(pDraw, pGC, nInit, pptInit, pwidthInit, fSorted);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterSetSpans(
-    DrawablePtr     pDraw,
-    GCPtr       pGC,
-    char        *pcharsrc,
-    register DDXPointPtr ppt,
-    int         *pwidth,
-    int         nspans,
-    int         fSorted )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterSetSpans");
-    VGAGet_GC();
-    (*pGC->ops->SetSpans)(pDraw, pGC, pcharsrc, ppt, pwidth, nspans, fSorted);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPutImage(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     depth,
-    int x, int y, int w, int h,
-    int     leftPad,
-    int     format,
-    char    *pImage )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPutImage");
-    VGAGet_GC();
-    (*pGC->ops->PutImage)(pDraw, pGC, depth, x, y, w, h,
-              leftPad, format, pImage);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static RegionPtr
-VGAarbiterCopyArea(
-    DrawablePtr pSrc,
-    DrawablePtr pDst,
-    GC *pGC,
-    int srcx, int srcy,
-    int width, int height,
-    int dstx, int dsty )
-{
-    RegionPtr ret;
-
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterCopyArea");
-    VGAGet_GC();
-    ret = (*pGC->ops->CopyArea)(pSrc, pDst,
-                pGC, srcx, srcy, width, height, dstx, dsty);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-    return ret;
-}
-
-static RegionPtr
-VGAarbiterCopyPlane(
-    DrawablePtr pSrc,
-    DrawablePtr pDst,
-    GCPtr pGC,
-    int srcx, int srcy,
-    int width, int height,
-    int dstx, int dsty,
-    unsigned long bitPlane )
-{
-    RegionPtr ret;
-
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterCopyPlane");
-    VGAGet_GC();
-    ret = (*pGC->ops->CopyPlane)(pSrc, pDst, pGC, srcx, srcy,
-                 width, height, dstx, dsty, bitPlane);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-    return ret;
-}
-
-static void
-VGAarbiterPolyPoint(
-    DrawablePtr pDraw,
-    GCPtr pGC,
-    int mode,
-    int npt,
-    xPoint *pptInit )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyPoint");
-    VGAGet_GC();
-    (*pGC->ops->PolyPoint)(pDraw, pGC, mode, npt, pptInit);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-
-static void
-VGAarbiterPolylines(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     mode,
-    int     npt,
-    DDXPointPtr pptInit )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolylines");
-    VGAGet_GC();
-    (*pGC->ops->Polylines)(pDraw, pGC, mode, npt, pptInit);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolySegment(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     nseg,
-    xSegment    *pSeg )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolySegment");
-    VGAGet_GC();
-    (*pGC->ops->PolySegment)(pDraw, pGC, nseg, pSeg);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolyRectangle(
-    DrawablePtr  pDraw,
-    GCPtr        pGC,
-    int          nRectsInit,
-    xRectangle  *pRectsInit )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyRectangle");
-    VGAGet_GC();
-    (*pGC->ops->PolyRectangle)(pDraw, pGC, nRectsInit, pRectsInit);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolyArc(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     narcs,
-    xArc    *parcs )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyArc");
-    VGAGet_GC();
-    (*pGC->ops->PolyArc)(pDraw, pGC, narcs, parcs);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterFillPolygon(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     shape,
-    int     mode,
-    int     count,
-    DDXPointPtr ptsIn )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterFillPolygon");
-    VGAGet_GC();
-    (*pGC->ops->FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolyFillRect(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     nrectFill,
-    xRectangle  *prectInit)
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyFillRect");
-    VGAGet_GC();
-    (*pGC->ops->PolyFillRect)(pDraw, pGC, nrectFill, prectInit);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolyFillArc(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     narcs,
-    xArc    *parcs )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyFillArc");
-    VGAGet_GC();
-    (*pGC->ops->PolyFillArc)(pDraw, pGC, narcs, parcs);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static int
-VGAarbiterPolyText8(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     x,
-    int     y,
-    int     count,
-    char    *chars )
-{
-    int ret;
-
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyText8");
-    VGAGet_GC();
-    ret = (*pGC->ops->PolyText8)(pDraw, pGC, x, y, count, chars);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-    return ret;
-}
-
-static int
-VGAarbiterPolyText16(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     x,
-    int     y,
-    int     count,
-    unsigned short *chars )
-{
-    int ret;
-
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyText16");
-    VGAGet_GC();
-    ret = (*pGC->ops->PolyText16)(pDraw, pGC, x, y, count, chars);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-    return ret;
-}
-
-static void
-VGAarbiterImageText8(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     x,
-    int     y,
-    int     count,
-    char    *chars )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterImageText8");
-    VGAGet_GC();
-    (*pGC->ops->ImageText8)(pDraw, pGC, x, y, count, chars);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterImageText16(
-    DrawablePtr pDraw,
-    GCPtr   pGC,
-    int     x,
-    int     y,
-    int     count,
-    unsigned short *chars )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterImageText16");
-    VGAGet_GC();
-    (*pGC->ops->ImageText16)(pDraw, pGC, x, y, count, chars);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-
-static void
-VGAarbiterImageGlyphBlt(
-    DrawablePtr pDraw,
-    GCPtr pGC,
-    int xInit, int yInit,
-    unsigned int nglyph,
-    CharInfoPtr *ppci,
-    pointer pglyphBase )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterImageGlyphBlt");
-    VGAGet_GC();
-    (*pGC->ops->ImageGlyphBlt)(pDraw, pGC, xInit, yInit,
-                   nglyph, ppci, pglyphBase);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPolyGlyphBlt(
-    DrawablePtr pDraw,
-    GCPtr pGC,
-    int xInit, int yInit,
-    unsigned int nglyph,
-    CharInfoPtr *ppci,
-    pointer pglyphBase )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPolyGlyphBlt");
-    VGAGet_GC();
-    (*pGC->ops->PolyGlyphBlt)(pDraw, pGC, xInit, yInit,
-                  nglyph, ppci, pglyphBase);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-static void
-VGAarbiterPushPixels(
-    GCPtr   pGC,
-    PixmapPtr   pBitMap,
-    DrawablePtr pDraw,
-    int dx, int dy, int xOrg, int yOrg )
-{
-    GC_UNWRAP(pGC);
-    DPRINT("VGAarbiterPushPixels");
-    VGAGet_GC();
-    (*pGC->ops->PushPixels)(pGC, pBitMap, pDraw, dx, dy, xOrg, yOrg);
-    VGAPut_GC();
-    GC_WRAP(pGC);
-}
-
-
-/* miSpriteFuncs */
-static Bool
-VGAarbiterSpriteRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur)
-{
-    Bool val;
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterSpriteRealizeCursor",pScreen->myNum);
-    VGAGet();
-    val = PointPriv->spriteFuncs->RealizeCursor(pDev, pScreen, pCur);
-    VGAPut();
-    SPRITE_EPILOG;
-    return val;
-}
-
-static Bool
-VGAarbiterSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur)
-{
-    Bool val;
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterSpriteUnrealizeCursor",pScreen->myNum);
-    VGAGet();
-    val = PointPriv->spriteFuncs->UnrealizeCursor(pDev, pScreen, pCur);
-    VGAPut();
-    SPRITE_EPILOG;
-    return val;
-}
-
-static void
-VGAarbiterSpriteSetCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur, int x, int y)
-{
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterSpriteSetCursor",pScreen->myNum);
-    VGAGet();
-    PointPriv->spriteFuncs->SetCursor(pDev, pScreen, pCur, x, y);
-    VGAPut();
-    SPRITE_EPILOG;
-}
-
-static void
-VGAarbiterSpriteMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)
-{
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterSpriteMoveCursor",pScreen->myNum);
-    VGAGet();
-    PointPriv->spriteFuncs->MoveCursor(pDev, pScreen, x, y);
-    VGAPut();
-    SPRITE_EPILOG;
-}
-
-static Bool
-VGAarbiterDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    Bool val;
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterDeviceCursorInitialize",pScreen->myNum);
-    VGAGet();
-    val = PointPriv->spriteFuncs->DeviceCursorInitialize(pDev, pScreen);
-    VGAPut();
-    SPRITE_EPILOG;
-    return val;
-}
-
-static void
-VGAarbiterDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
-    SPRITE_PROLOG;
-    DPRINT_S("VGAarbiterDeviceCursorCleanup",pScreen->myNum);
-    VGAGet();
-    PointPriv->spriteFuncs->DeviceCursorCleanup(pDev, pScreen);
-    VGAPut();
-    SPRITE_EPILOG;
-}
-
-#ifdef RENDER
-static void
-VGAarbiterComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask,
-         PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask,
-         INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width,
-         CARD16 height)
-{
-    ScreenPtr       pScreen = pDst->pDrawable->pScreen;
-    PictureScreenPtr    ps = GetPictureScreen(pScreen);
-
-    PICTURE_PROLOGUE(Composite);
-
-    VGAGet();
-    (*ps->Composite) (op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst,
-              yDst, width, height);
-    VGAPut();
-    PICTURE_EPILOGUE(Composite, VGAarbiterComposite);
-}
-
-static void
-VGAarbiterGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
-      PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int nlist,
-      GlyphListPtr list, GlyphPtr *glyphs)
-{
-    ScreenPtr       pScreen = pDst->pDrawable->pScreen;
-    PictureScreenPtr    ps = GetPictureScreen(pScreen);
-
-    PICTURE_PROLOGUE(Glyphs);
-
-    VGAGet();
-    (*ps->Glyphs)(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);
-    VGAPut();
-    PICTURE_EPILOGUE (Glyphs, VGAarbiterGlyphs);
-}
-
-static void
-VGAarbiterCompositeRects(CARD8 op, PicturePtr pDst, xRenderColor *color, int nRect,
-          xRectangle *rects)
-{
-    ScreenPtr       pScreen = pDst->pDrawable->pScreen;
-    PictureScreenPtr    ps = GetPictureScreen(pScreen);
-
-    PICTURE_PROLOGUE(CompositeRects);
-
-    VGAGet();
-    (*ps->CompositeRects)(op, pDst, color, nRect, rects);
-    VGAPut();
-    PICTURE_EPILOGUE (CompositeRects, VGAarbiterCompositeRects);
-}
-#endif
-#else
-/* dummy functions */
-void xf86VGAarbiterInit(void) {}
-void xf86VGAarbiterFini(void) {}
-
-void xf86VGAarbiterLock(ScrnInfoPtr pScrn) {}
-void xf86VGAarbiterUnlock(ScrnInfoPtr pScrn) {}
-Bool xf86VGAarbiterAllowDRI(ScreenPtr pScreen) { return TRUE; }
-void xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn) {}
-void xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn) {}
-Bool xf86VGAarbiterWrapFunctions(void) { return FALSE; }
-
-#endif
+/*

+ * This code was stolen from RAC and adapted to control the legacy vga

+ * interface.

+ *

+ *

+ * Copyright (c) 2007 Paulo R. Zanoni, Tiago Vignatti

+ *

+ * 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 AUTHORS OR COPYRIGHT

+ * HOLDERS 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.

+ *

+ */

+

+#include "xorg-config.h"

+

+#include "xf86VGAarbiter.h"

+

+#ifdef HAVE_PCI_DEVICE_VGAARB_INIT

+#include "xf86VGAarbiterPriv.h"

+#include "xf86Bus.h"

+#include "xf86Priv.h"

+#include "pciaccess.h"

+

+

+static GCFuncs VGAarbiterGCFuncs = {

+    VGAarbiterValidateGC, VGAarbiterChangeGC, VGAarbiterCopyGC,

+    VGAarbiterDestroyGC, VGAarbiterChangeClip, VGAarbiterDestroyClip,

+    VGAarbiterCopyClip

+};

+

+static GCOps VGAarbiterGCOps = {

+    VGAarbiterFillSpans, VGAarbiterSetSpans, VGAarbiterPutImage,

+    VGAarbiterCopyArea, VGAarbiterCopyPlane, VGAarbiterPolyPoint,

+    VGAarbiterPolylines, VGAarbiterPolySegment, VGAarbiterPolyRectangle,

+    VGAarbiterPolyArc, VGAarbiterFillPolygon, VGAarbiterPolyFillRect,

+    VGAarbiterPolyFillArc, VGAarbiterPolyText8, VGAarbiterPolyText16,

+    VGAarbiterImageText8, VGAarbiterImageText16, VGAarbiterImageGlyphBlt,

+    VGAarbiterPolyGlyphBlt, VGAarbiterPushPixels,

+    {NULL}      /* devPrivate */

+};

+

+static miPointerSpriteFuncRec VGAarbiterSpriteFuncs = {

+    VGAarbiterSpriteRealizeCursor, VGAarbiterSpriteUnrealizeCursor,

+    VGAarbiterSpriteSetCursor, VGAarbiterSpriteMoveCursor,

+    VGAarbiterDeviceCursorInitialize, VGAarbiterDeviceCursorCleanup

+};

+

+static int VGAarbiterKeyIndex;

+static DevPrivateKey VGAarbiterScreenKey = &VGAarbiterKeyIndex;

+static int VGAarbiterGCIndex;

+static DevPrivateKey VGAarbiterGCKey = &VGAarbiterGCIndex;

+

+static int vga_no_arb = 0;

+void

+xf86VGAarbiterInit(void)

+{

+    if (pci_device_vgaarb_init() != 0) {

+	vga_no_arb = 1;

+        xf86Msg(X_WARNING, "VGA arbiter: cannot open kernel arbiter, no multi-card support\n");

+    }

+}

+

+void

+xf86VGAarbiterFini(void)

+{

+    if (vga_no_arb)

+	return;

+    pci_device_vgaarb_fini();

+}

+

+void

+xf86VGAarbiterLock(ScrnInfoPtr pScrn)

+{

+    if (vga_no_arb)

+	return;

+    pci_device_vgaarb_set_target(pScrn->vgaDev);

+    pci_device_vgaarb_lock();

+}

+

+void

+xf86VGAarbiterUnlock(ScrnInfoPtr pScrn)

+{

+    if (vga_no_arb)

+	return;

+    pci_device_vgaarb_unlock();

+}

+

+Bool xf86VGAarbiterAllowDRI(ScreenPtr pScreen)

+{

+    int vga_count;

+    int rsrc_decodes;

+    ScrnInfoPtr         pScrn = xf86Screens[pScreen->myNum];

+

+    if (vga_no_arb)

+	return TRUE;

+

+    pci_device_vgaarb_get_info(pScrn->vgaDev, &vga_count, &rsrc_decodes);

+    if (vga_count > 1) {

+        if (rsrc_decodes) {

+            return FALSE;

+        }

+    }

+    return TRUE;

+}

+

+void

+xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn)

+{

+    struct pci_device *dev;

+    EntityPtr pEnt;

+

+    if (vga_no_arb)

+	return;

+

+    pEnt = xf86Entities[pScrn->entityList[0]];

+    if (pEnt->bus.type != BUS_PCI)

+	return;

+

+    dev = pEnt->bus.id.pci;

+    pScrn->vgaDev = dev;

+}

+

+void

+xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn)

+{

+    if (vga_no_arb)

+	return;

+    pci_device_vgaarb_decodes(VGA_ARB_RSRC_LEGACY_MEM | VGA_ARB_RSRC_LEGACY_IO);

+}

+

+Bool

+xf86VGAarbiterWrapFunctions(void)

+{

+    ScrnInfoPtr pScrn;

+    VGAarbiterScreenPtr pScreenPriv;

+    miPointerScreenPtr PointPriv;

+#ifdef RENDER

+    PictureScreenPtr    ps;

+#endif

+    ScreenPtr pScreen;

+    int vga_count, i;

+

+    if (vga_no_arb)

+        return FALSE;

+

+    /*

+     * we need to wrap the arbiter if we have more than

+     * one VGA card - hotplug cries.

+     */

+    pci_device_vgaarb_get_info(NULL, &vga_count, NULL);

+    if (vga_count < 2 || !xf86Screens)

+        return FALSE;

+

+    xf86Msg(X_INFO,"Found %d VGA devices: arbiter wrapping enabled\n",

+            vga_count);

+

+    for (i = 0; i < xf86NumScreens; i++) {

+        pScreen = xf86Screens[i]->pScreen;

+#ifdef RENDER

+        ps = GetPictureScreenIfSet(pScreen);

+#endif

+        pScrn = xf86Screens[pScreen->myNum];

+        PointPriv = dixLookupPrivate(&pScreen->devPrivates, miPointerScreenKey);

+

+        if (!dixRequestPrivate(VGAarbiterGCKey, sizeof(VGAarbiterGCRec)))

+            return FALSE;

+

+        if (!(pScreenPriv = xalloc(sizeof(VGAarbiterScreenRec))))

+            return FALSE;

+

+        dixSetPrivate(&pScreen->devPrivates, VGAarbiterScreenKey, pScreenPriv);

+

+        WRAP_SCREEN(CloseScreen, VGAarbiterCloseScreen);

+        WRAP_SCREEN(SaveScreen, VGAarbiterSaveScreen);

+        WRAP_SCREEN(WakeupHandler, VGAarbiterWakeupHandler);

+        WRAP_SCREEN(BlockHandler, VGAarbiterBlockHandler);

+        WRAP_SCREEN(CreateGC, VGAarbiterCreateGC);

+        WRAP_SCREEN(GetImage, VGAarbiterGetImage);

+        WRAP_SCREEN(GetSpans, VGAarbiterGetSpans);

+        WRAP_SCREEN(SourceValidate, VGAarbiterSourceValidate);

+        WRAP_SCREEN(CopyWindow, VGAarbiterCopyWindow);

+        WRAP_SCREEN(ClearToBackground, VGAarbiterClearToBackground);

+        WRAP_SCREEN(CreatePixmap, VGAarbiterCreatePixmap);

+        WRAP_SCREEN(StoreColors, VGAarbiterStoreColors);

+        WRAP_SCREEN(DisplayCursor, VGAarbiterDisplayCursor);

+        WRAP_SCREEN(RealizeCursor, VGAarbiterRealizeCursor);

+        WRAP_SCREEN(UnrealizeCursor, VGAarbiterUnrealizeCursor);

+        WRAP_SCREEN(RecolorCursor, VGAarbiterRecolorCursor);

+        WRAP_SCREEN(SetCursorPosition, VGAarbiterSetCursorPosition);

+#ifdef RENDER

+        WRAP_PICT(Composite,VGAarbiterComposite);

+        WRAP_PICT(Glyphs,VGAarbiterGlyphs);

+        WRAP_PICT(CompositeRects,VGAarbiterCompositeRects);

+#endif

+        WRAP_SCREEN_INFO(AdjustFrame, VGAarbiterAdjustFrame);

+        WRAP_SCREEN_INFO(SwitchMode, VGAarbiterSwitchMode);

+        WRAP_SCREEN_INFO(EnterVT, VGAarbiterEnterVT);

+        WRAP_SCREEN_INFO(LeaveVT, VGAarbiterLeaveVT);

+        WRAP_SCREEN_INFO(FreeScreen, VGAarbiterFreeScreen);

+        WRAP_SPRITE;

+    }

+

+    return TRUE;

+}

+

+/* Screen funcs */

+static Bool

+VGAarbiterCloseScreen (int i, ScreenPtr pScreen)

+{

+    Bool val;

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+    miPointerScreenPtr PointPriv = (miPointerScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, miPointerScreenKey);

+#ifdef RENDER

+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

+#endif

+

+    UNWRAP_SCREEN(CreateGC);

+    UNWRAP_SCREEN(CloseScreen);

+    UNWRAP_SCREEN(GetImage);

+    UNWRAP_SCREEN(GetSpans);

+    UNWRAP_SCREEN(SourceValidate);

+    UNWRAP_SCREEN(CopyWindow);

+    UNWRAP_SCREEN(ClearToBackground);

+    UNWRAP_SCREEN(SaveScreen);

+    UNWRAP_SCREEN(StoreColors);

+    UNWRAP_SCREEN(DisplayCursor);

+    UNWRAP_SCREEN(RealizeCursor);

+    UNWRAP_SCREEN(UnrealizeCursor);

+    UNWRAP_SCREEN(RecolorCursor);

+    UNWRAP_SCREEN(SetCursorPosition);

+#ifdef RENDER

+    UNWRAP_PICT(Composite);

+    UNWRAP_PICT(Glyphs);

+    UNWRAP_PICT(CompositeRects);

+#endif

+    UNWRAP_SCREEN_INFO(AdjustFrame);

+    UNWRAP_SCREEN_INFO(SwitchMode);

+    UNWRAP_SCREEN_INFO(EnterVT);

+    UNWRAP_SCREEN_INFO(LeaveVT);

+    UNWRAP_SCREEN_INFO(FreeScreen);

+    UNWRAP_SPRITE;

+

+    xfree ((pointer) pScreenPriv);

+    xf86VGAarbiterLock(xf86Screens[i]);

+    val = (*pScreen->CloseScreen) (i, pScreen);

+    xf86VGAarbiterUnlock(xf86Screens[i]);

+    return val;

+}

+

+static void

+VGAarbiterBlockHandler(int i,

+                       pointer blockData, pointer pTimeout, pointer pReadmask)

+{

+    ScreenPtr pScreen = screenInfo.screens[i];

+    SCREEN_PROLOG(BlockHandler);

+    VGAGet();

+    pScreen->BlockHandler(i, blockData, pTimeout, pReadmask);

+    VGAPut();

+    SCREEN_EPILOG(BlockHandler, VGAarbiterBlockHandler);

+}

+

+static void

+VGAarbiterWakeupHandler(int i, pointer blockData, unsigned long result, pointer pReadmask)

+{

+    ScreenPtr pScreen = screenInfo.screens[i];

+    SCREEN_PROLOG(WakeupHandler);

+    VGAGet();

+    pScreen->WakeupHandler(i, blockData, result, pReadmask);

+    VGAPut();

+    SCREEN_EPILOG(WakeupHandler, VGAarbiterWakeupHandler);

+}

+

+static void

+VGAarbiterGetImage (

+    DrawablePtr pDrawable,

+    int sx, int sy, int w, int h,

+    unsigned int    format,

+    unsigned long   planemask,

+    char        *pdstLine

+    )

+{

+    ScreenPtr pScreen = pDrawable->pScreen;

+    SCREEN_PROLOG(GetImage);

+//    if (xf86Screens[pScreen->myNum]->vtSema) {

+    VGAGet();

+//    }

+    (*pScreen->GetImage) (pDrawable, sx, sy, w, h,

+              format, planemask, pdstLine);

+    VGAPut();

+    SCREEN_EPILOG (GetImage, VGAarbiterGetImage);

+}

+

+static void

+VGAarbiterGetSpans (

+    DrawablePtr pDrawable,

+    int     wMax,

+    DDXPointPtr ppt,

+    int     *pwidth,

+    int     nspans,

+    char    *pdstStart

+    )

+{

+    ScreenPtr       pScreen = pDrawable->pScreen;

+

+    SCREEN_PROLOG (GetSpans);

+    VGAGet();

+    (*pScreen->GetSpans) (pDrawable, wMax, ppt, pwidth, nspans, pdstStart);

+    VGAPut();

+    SCREEN_EPILOG (GetSpans, VGAarbiterGetSpans);

+}

+

+static void

+VGAarbiterSourceValidate (

+    DrawablePtr pDrawable,

+    int x, int y, int width, int height )

+{

+    ScreenPtr   pScreen = pDrawable->pScreen;

+    SCREEN_PROLOG (SourceValidate);

+    VGAGet();

+    if (pScreen->SourceValidate)

+    (*pScreen->SourceValidate) (pDrawable, x, y, width, height);

+    VGAPut();

+    SCREEN_EPILOG (SourceValidate, VGAarbiterSourceValidate);

+}

+

+static void

+VGAarbiterCopyWindow(

+    WindowPtr pWin,

+    DDXPointRec ptOldOrg,

+    RegionPtr prgnSrc )

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    SCREEN_PROLOG (CopyWindow);

+    VGAGet();

+    (*pScreen->CopyWindow) (pWin, ptOldOrg, prgnSrc);

+    VGAPut();

+    SCREEN_EPILOG (CopyWindow, VGAarbiterCopyWindow);

+}

+

+static void

+VGAarbiterClearToBackground (

+    WindowPtr pWin,

+    int x, int y,

+    int w, int h,

+    Bool generateExposures )

+{

+    ScreenPtr pScreen = pWin->drawable.pScreen;

+

+    SCREEN_PROLOG ( ClearToBackground);

+    VGAGet();

+    (*pScreen->ClearToBackground) (pWin, x, y, w, h, generateExposures);

+    VGAPut();

+    SCREEN_EPILOG (ClearToBackground, VGAarbiterClearToBackground);

+}

+

+static PixmapPtr

+VGAarbiterCreatePixmap(ScreenPtr pScreen, int w, int h, int depth, unsigned usage_hint)

+{

+    PixmapPtr pPix;

+

+    SCREEN_PROLOG ( CreatePixmap);

+    VGAGet();

+    pPix = (*pScreen->CreatePixmap) (pScreen, w, h, depth, usage_hint);

+    VGAPut();

+    SCREEN_EPILOG (CreatePixmap, VGAarbiterCreatePixmap);

+

+    return pPix;

+}

+

+static Bool

+VGAarbiterSaveScreen(ScreenPtr pScreen, Bool unblank)

+{

+    Bool val;

+

+    SCREEN_PROLOG (SaveScreen);

+    VGAGet();

+    val = (*pScreen->SaveScreen) (pScreen, unblank);

+    VGAPut();

+    SCREEN_EPILOG (SaveScreen, VGAarbiterSaveScreen);

+

+    return val;

+}

+

+static void

+VGAarbiterStoreColors (

+    ColormapPtr        pmap,

+    int                ndef,

+    xColorItem         *pdefs)

+{

+    ScreenPtr pScreen = pmap->pScreen;

+

+    SCREEN_PROLOG (StoreColors);

+    VGAGet();

+    (*pScreen->StoreColors) (pmap,ndef,pdefs);

+    VGAPut();

+    SCREEN_EPILOG ( StoreColors, VGAarbiterStoreColors);

+}

+

+static void

+VGAarbiterRecolorCursor (

+    DeviceIntPtr pDev,

+    ScreenPtr pScreen,

+    CursorPtr pCurs,

+    Bool displayed

+    )

+{

+    SCREEN_PROLOG (RecolorCursor);

+    VGAGet();

+    (*pScreen->RecolorCursor) (pDev, pScreen, pCurs, displayed);

+    VGAPut();

+    SCREEN_EPILOG ( RecolorCursor, VGAarbiterRecolorCursor);

+}

+

+static Bool

+VGAarbiterRealizeCursor (

+    DeviceIntPtr pDev,

+    ScreenPtr   pScreen,

+    CursorPtr   pCursor

+    )

+{

+    Bool val;

+

+    SCREEN_PROLOG (RealizeCursor);

+    VGAGet();

+    val = (*pScreen->RealizeCursor) (pDev, pScreen,pCursor);

+    VGAPut();

+    SCREEN_EPILOG ( RealizeCursor, VGAarbiterRealizeCursor);

+    return val;

+}

+

+static Bool

+VGAarbiterUnrealizeCursor (

+    DeviceIntPtr pDev,

+    ScreenPtr   pScreen,

+    CursorPtr   pCursor

+    )

+{

+    Bool val;

+

+    SCREEN_PROLOG (UnrealizeCursor);

+    VGAGet();

+    val = (*pScreen->UnrealizeCursor) (pDev, pScreen, pCursor);

+    VGAPut();

+    SCREEN_EPILOG ( UnrealizeCursor, VGAarbiterUnrealizeCursor);

+    return val;

+}

+

+static Bool

+VGAarbiterDisplayCursor (

+    DeviceIntPtr pDev,

+    ScreenPtr   pScreen,

+    CursorPtr   pCursor

+    )

+{

+    Bool val;

+

+    SCREEN_PROLOG (DisplayCursor);

+    VGAGet();

+    val = (*pScreen->DisplayCursor) (pDev, pScreen, pCursor);

+    VGAPut();

+    SCREEN_EPILOG ( DisplayCursor, VGAarbiterDisplayCursor);

+    return val;

+}

+

+static Bool

+VGAarbiterSetCursorPosition (

+    DeviceIntPtr pDev,

+    ScreenPtr   pScreen,

+    int x, int y,

+    Bool generateEvent)

+{

+    Bool val;

+

+    SCREEN_PROLOG (SetCursorPosition);

+    VGAGet();

+    val = (*pScreen->SetCursorPosition) (pDev, pScreen, x, y, generateEvent);

+    VGAPut();

+    SCREEN_EPILOG ( SetCursorPosition, VGAarbiterSetCursorPosition);

+    return val;

+}

+

+static void

+VGAarbiterAdjustFrame(int index, int x, int y, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+

+    VGAGet();

+    (*pScreenPriv->AdjustFrame)(index, x, y, flags);

+    VGAPut();

+}

+

+static Bool

+VGAarbiterSwitchMode(int index, DisplayModePtr mode, int flags)

+{

+    Bool val;

+    ScreenPtr pScreen = screenInfo.screens[index];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+

+    VGAGet();

+    val = (*pScreenPriv->SwitchMode)(index, mode, flags);

+    VGAPut();

+    return val;

+}

+

+static Bool

+VGAarbiterEnterVT(int index, int flags)

+{

+    Bool val;

+    ScreenPtr pScreen = screenInfo.screens[index];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+

+    VGAGet();

+    val = (*pScreenPriv->EnterVT)(index, flags);

+    VGAPut();

+    return val;

+}

+

+static void

+VGAarbiterLeaveVT(int index, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+

+    VGAGet();

+    (*pScreenPriv->LeaveVT)(index, flags);

+    VGAPut();

+}

+

+static void

+VGAarbiterFreeScreen(int index, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    VGAarbiterScreenPtr pScreenPriv = (VGAarbiterScreenPtr)dixLookupPrivate(

+        &pScreen->devPrivates, VGAarbiterScreenKey);

+

+    VGAGet();

+    (*pScreenPriv->FreeScreen)(index, flags);

+    VGAPut();

+}

+

+static Bool

+VGAarbiterCreateGC(GCPtr pGC)

+{

+    ScreenPtr    pScreen = pGC->pScreen;

+    VGAarbiterGCPtr pGCPriv = (VGAarbiterGCPtr)dixLookupPrivate(&pGC->devPrivates, VGAarbiterGCKey);

+    Bool         ret;

+

+    SCREEN_PROLOG(CreateGC);

+    VGAGet();

+    ret = (*pScreen->CreateGC)(pGC);

+    VGAPut();

+    GC_WRAP(pGC);

+    SCREEN_EPILOG(CreateGC,VGAarbiterCreateGC);

+

+    return ret;

+}

+

+/* GC funcs */

+static void

+VGAarbiterValidateGC(

+   GCPtr         pGC,

+   unsigned long changes,

+   DrawablePtr   pDraw )

+{

+    GC_UNWRAP(pGC);

+    (*pGC->funcs->ValidateGC)(pGC, changes, pDraw);

+    GC_WRAP(pGC);

+}

+

+

+static void

+VGAarbiterDestroyGC(GCPtr pGC)

+{

+    GC_UNWRAP (pGC);

+    (*pGC->funcs->DestroyGC)(pGC);

+    GC_WRAP (pGC);

+}

+

+static void

+VGAarbiterChangeGC (

+    GCPtr       pGC,

+    unsigned long   mask)

+{

+    GC_UNWRAP (pGC);

+    (*pGC->funcs->ChangeGC) (pGC, mask);

+    GC_WRAP (pGC);

+}

+

+static void

+VGAarbiterCopyGC (

+    GCPtr       pGCSrc,

+    unsigned long   mask,

+    GCPtr       pGCDst)

+{

+    GC_UNWRAP (pGCDst);

+    (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);

+    GC_WRAP (pGCDst);

+}

+

+static void

+VGAarbiterChangeClip (

+    GCPtr   pGC,

+    int     type,

+    pointer pvalue,

+    int     nrects )

+{

+    GC_UNWRAP (pGC);

+    (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects);

+    GC_WRAP (pGC);

+}

+

+static void

+VGAarbiterCopyClip(GCPtr pgcDst, GCPtr pgcSrc)

+{

+    GC_UNWRAP (pgcDst);

+    (* pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);

+    GC_WRAP (pgcDst);

+}

+

+static void

+VGAarbiterDestroyClip(GCPtr pGC)

+{

+    GC_UNWRAP (pGC);

+    (* pGC->funcs->DestroyClip)(pGC);

+    GC_WRAP (pGC);

+}

+

+/* GC Ops */

+static void

+VGAarbiterFillSpans(

+    DrawablePtr pDraw,

+    GC      *pGC,

+    int     nInit,

+    DDXPointPtr pptInit,

+    int *pwidthInit,

+    int fSorted )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->FillSpans)(pDraw, pGC, nInit, pptInit, pwidthInit, fSorted);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterSetSpans(

+    DrawablePtr     pDraw,

+    GCPtr       pGC,

+    char        *pcharsrc,

+    register DDXPointPtr ppt,

+    int         *pwidth,

+    int         nspans,

+    int         fSorted )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->SetSpans)(pDraw, pGC, pcharsrc, ppt, pwidth, nspans, fSorted);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPutImage(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     depth,

+    int x, int y, int w, int h,

+    int     leftPad,

+    int     format,

+    char    *pImage )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PutImage)(pDraw, pGC, depth, x, y, w, h,

+              leftPad, format, pImage);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static RegionPtr

+VGAarbiterCopyArea(

+    DrawablePtr pSrc,

+    DrawablePtr pDst,

+    GC *pGC,

+    int srcx, int srcy,

+    int width, int height,

+    int dstx, int dsty )

+{

+    RegionPtr ret;

+

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    ret = (*pGC->ops->CopyArea)(pSrc, pDst,

+                pGC, srcx, srcy, width, height, dstx, dsty);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+    return ret;

+}

+

+static RegionPtr

+VGAarbiterCopyPlane(

+    DrawablePtr pSrc,

+    DrawablePtr pDst,

+    GCPtr pGC,

+    int srcx, int srcy,

+    int width, int height,

+    int dstx, int dsty,

+    unsigned long bitPlane )

+{

+    RegionPtr ret;

+

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    ret = (*pGC->ops->CopyPlane)(pSrc, pDst, pGC, srcx, srcy,

+                 width, height, dstx, dsty, bitPlane);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+    return ret;

+}

+

+static void

+VGAarbiterPolyPoint(

+    DrawablePtr pDraw,

+    GCPtr pGC,

+    int mode,

+    int npt,

+    xPoint *pptInit )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyPoint)(pDraw, pGC, mode, npt, pptInit);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+

+static void

+VGAarbiterPolylines(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     mode,

+    int     npt,

+    DDXPointPtr pptInit )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->Polylines)(pDraw, pGC, mode, npt, pptInit);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolySegment(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     nseg,

+    xSegment    *pSeg )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolySegment)(pDraw, pGC, nseg, pSeg);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolyRectangle(

+    DrawablePtr  pDraw,

+    GCPtr        pGC,

+    int          nRectsInit,

+    xRectangle  *pRectsInit )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyRectangle)(pDraw, pGC, nRectsInit, pRectsInit);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolyArc(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     narcs,

+    xArc    *parcs )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyArc)(pDraw, pGC, narcs, parcs);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterFillPolygon(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     shape,

+    int     mode,

+    int     count,

+    DDXPointPtr ptsIn )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->FillPolygon)(pDraw, pGC, shape, mode, count, ptsIn);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolyFillRect(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     nrectFill,

+    xRectangle  *prectInit)

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyFillRect)(pDraw, pGC, nrectFill, prectInit);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolyFillArc(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     narcs,

+    xArc    *parcs )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyFillArc)(pDraw, pGC, narcs, parcs);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static int

+VGAarbiterPolyText8(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     x,

+    int     y,

+    int     count,

+    char    *chars )

+{

+    int ret;

+

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    ret = (*pGC->ops->PolyText8)(pDraw, pGC, x, y, count, chars);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+    return ret;

+}

+

+static int

+VGAarbiterPolyText16(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     x,

+    int     y,

+    int     count,

+    unsigned short *chars )

+{

+    int ret;

+

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    ret = (*pGC->ops->PolyText16)(pDraw, pGC, x, y, count, chars);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+    return ret;

+}

+

+static void

+VGAarbiterImageText8(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     x,

+    int     y,

+    int     count,

+    char    *chars )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->ImageText8)(pDraw, pGC, x, y, count, chars);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterImageText16(

+    DrawablePtr pDraw,

+    GCPtr   pGC,

+    int     x,

+    int     y,

+    int     count,

+    unsigned short *chars )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->ImageText16)(pDraw, pGC, x, y, count, chars);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+

+static void

+VGAarbiterImageGlyphBlt(

+    DrawablePtr pDraw,

+    GCPtr pGC,

+    int xInit, int yInit,

+    unsigned int nglyph,

+    CharInfoPtr *ppci,

+    pointer pglyphBase )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->ImageGlyphBlt)(pDraw, pGC, xInit, yInit,

+                   nglyph, ppci, pglyphBase);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPolyGlyphBlt(

+    DrawablePtr pDraw,

+    GCPtr pGC,

+    int xInit, int yInit,

+    unsigned int nglyph,

+    CharInfoPtr *ppci,

+    pointer pglyphBase )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PolyGlyphBlt)(pDraw, pGC, xInit, yInit,

+                  nglyph, ppci, pglyphBase);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+static void

+VGAarbiterPushPixels(

+    GCPtr   pGC,

+    PixmapPtr   pBitMap,

+    DrawablePtr pDraw,

+    int dx, int dy, int xOrg, int yOrg )

+{

+    GC_UNWRAP(pGC);

+    VGAGet_GC();

+    (*pGC->ops->PushPixels)(pGC, pBitMap, pDraw, dx, dy, xOrg, yOrg);

+    VGAPut_GC();

+    GC_WRAP(pGC);

+}

+

+

+/* miSpriteFuncs */

+static Bool

+VGAarbiterSpriteRealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur)

+{

+    Bool val;

+    SPRITE_PROLOG;

+    VGAGet();

+    val = PointPriv->spriteFuncs->RealizeCursor(pDev, pScreen, pCur);

+    VGAPut();

+    SPRITE_EPILOG;

+    return val;

+}

+

+static Bool

+VGAarbiterSpriteUnrealizeCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur)

+{

+    Bool val;

+    SPRITE_PROLOG;

+    VGAGet();

+    val = PointPriv->spriteFuncs->UnrealizeCursor(pDev, pScreen, pCur);

+    VGAPut();

+    SPRITE_EPILOG;

+    return val;

+}

+

+static void

+VGAarbiterSpriteSetCursor(DeviceIntPtr pDev, ScreenPtr pScreen, CursorPtr pCur, int x, int y)

+{

+    SPRITE_PROLOG;

+    VGAGet();

+    PointPriv->spriteFuncs->SetCursor(pDev, pScreen, pCur, x, y);

+    VGAPut();

+    SPRITE_EPILOG;

+}

+

+static void

+VGAarbiterSpriteMoveCursor(DeviceIntPtr pDev, ScreenPtr pScreen, int x, int y)

+{

+    SPRITE_PROLOG;

+    VGAGet();

+    PointPriv->spriteFuncs->MoveCursor(pDev, pScreen, x, y);

+    VGAPut();

+    SPRITE_EPILOG;

+}

+

+static Bool

+VGAarbiterDeviceCursorInitialize(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    Bool val;

+    SPRITE_PROLOG;

+    VGAGet();

+    val = PointPriv->spriteFuncs->DeviceCursorInitialize(pDev, pScreen);

+    VGAPut();

+    SPRITE_EPILOG;

+    return val;

+}

+

+static void

+VGAarbiterDeviceCursorCleanup(DeviceIntPtr pDev, ScreenPtr pScreen)

+{

+    SPRITE_PROLOG;

+    VGAGet();

+    PointPriv->spriteFuncs->DeviceCursorCleanup(pDev, pScreen);

+    VGAPut();

+    SPRITE_EPILOG;

+}

+

+#ifdef RENDER

+static void

+VGAarbiterComposite(CARD8 op, PicturePtr pSrc, PicturePtr pMask,

+         PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask,

+         INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width,

+         CARD16 height)

+{

+    ScreenPtr       pScreen = pDst->pDrawable->pScreen;

+    PictureScreenPtr    ps = GetPictureScreen(pScreen);

+

+    PICTURE_PROLOGUE(Composite);

+

+    VGAGet();

+    (*ps->Composite) (op, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, xDst,

+              yDst, width, height);

+    VGAPut();

+    PICTURE_EPILOGUE(Composite, VGAarbiterComposite);

+}

+

+static void

+VGAarbiterGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst,

+      PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int nlist,

+      GlyphListPtr list, GlyphPtr *glyphs)

+{

+    ScreenPtr       pScreen = pDst->pDrawable->pScreen;

+    PictureScreenPtr    ps = GetPictureScreen(pScreen);

+

+    PICTURE_PROLOGUE(Glyphs);

+

+    VGAGet();

+    (*ps->Glyphs)(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs);

+    VGAPut();

+    PICTURE_EPILOGUE (Glyphs, VGAarbiterGlyphs);

+}

+

+static void

+VGAarbiterCompositeRects(CARD8 op, PicturePtr pDst, xRenderColor *color, int nRect,

+          xRectangle *rects)

+{

+    ScreenPtr       pScreen = pDst->pDrawable->pScreen;

+    PictureScreenPtr    ps = GetPictureScreen(pScreen);

+

+    PICTURE_PROLOGUE(CompositeRects);

+

+    VGAGet();

+    (*ps->CompositeRects)(op, pDst, color, nRect, rects);

+    VGAPut();

+    PICTURE_EPILOGUE (CompositeRects, VGAarbiterCompositeRects);

+}

+#endif

+#else

+/* dummy functions */

+void xf86VGAarbiterInit(void) {}

+void xf86VGAarbiterFini(void) {}

+

+void xf86VGAarbiterLock(ScrnInfoPtr pScrn) {}

+void xf86VGAarbiterUnlock(ScrnInfoPtr pScrn) {}

+Bool xf86VGAarbiterAllowDRI(ScreenPtr pScreen) { return TRUE; }

+void xf86VGAarbiterScrnInit(ScrnInfoPtr pScrn) {}

+void xf86VGAarbiterDeviceDecodes(ScrnInfoPtr pScrn) {}

+Bool xf86VGAarbiterWrapFunctions(void) { return FALSE; }

+

+#endif

diff --git a/xorg-server/hw/xfree86/common/xf86cmap.c b/xorg-server/hw/xfree86/common/xf86cmap.c
index 08f557ccd..4cab8b3eb 100644
--- a/xorg-server/hw/xfree86/common/xf86cmap.c
+++ b/xorg-server/hw/xfree86/common/xf86cmap.c
@@ -1,1165 +1,1170 @@
-/*
- * Copyright (c) 1998-2001 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).
- */
-
-#ifdef HAVE_XORG_CONFIG_H
-#include <xorg-config.h>
-#endif
-
-#if defined(_XOPEN_SOURCE) || defined(sun) && defined(__SVR4)
-#include <math.h>
-#else
-#define _XOPEN_SOURCE   /* to get prototype for pow on some systems */
-#include <math.h>
-#undef _XOPEN_SOURCE
-#endif
-
-#include <X11/X.h>
-#include "misc.h"
-#include <X11/Xproto.h>
-#include "colormapst.h"
-#include "scrnintstr.h"
-
-#include "resource.h"
-
-#include "xf86.h"
-#include "xf86_OSproc.h"
-#include "xf86str.h"
-#include "micmap.h"
-#include "xf86Crtc.h"
-
-#ifdef XFreeXDGA
-#include <X11/extensions/xf86dgaproto.h>
-#include "dgaproc.h"
-#endif
-
-#include "xf86cmap.h"
-
-#define SCREEN_PROLOGUE(pScreen, field) ((pScreen)->field = \
-    ((CMapScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, CMapScreenKey))->field)
-#define SCREEN_EPILOGUE(pScreen, field, wrapper)\
-    ((pScreen)->field = wrapper)
-
-#define LOAD_PALETTE(pmap, index) \
-    ((pmap == miInstalledMaps[index]) && \
-     ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) || \
-      xf86Screens[index]->vtSema || pScreenPriv->isDGAmode))
-
-
-typedef struct _CMapLink {
-  ColormapPtr		cmap;
-  struct _CMapLink	*next;
-} CMapLink, *CMapLinkPtr;
-
-typedef struct {
-  ScrnInfoPtr			pScrn;
-  CloseScreenProcPtr		CloseScreen;
-  CreateColormapProcPtr 	CreateColormap;
-  DestroyColormapProcPtr	DestroyColormap;
-  InstallColormapProcPtr	InstallColormap;
-  StoreColorsProcPtr		StoreColors;
-  Bool				(*EnterVT)(int, int);
-  Bool				(*SwitchMode)(int, DisplayModePtr, int);
-  int				(*SetDGAMode)(int, int, DGADevicePtr);
-  xf86ChangeGammaProc		*ChangeGamma;
-  int				maxColors;
-  int				sigRGBbits;
-  int				gammaElements;
-  LOCO				*gamma;
-  int				*PreAllocIndices;
-  CMapLinkPtr			maps;
-  unsigned int			flags;
-  Bool				isDGAmode;
-} CMapScreenRec, *CMapScreenPtr;
-
-typedef struct {
-  int		numColors;
-  LOCO		*colors;
-  Bool		recalculate;
-  int		overscan;
-} CMapColormapRec, *CMapColormapPtr;
-
-static int CMapScreenKeyIndex;
-static DevPrivateKey CMapScreenKey;
-static int CMapColormapKeyIndex;
-static DevPrivateKey CMapColormapKey = &CMapColormapKeyIndex;
-
-static void CMapInstallColormap(ColormapPtr);
-static void CMapStoreColors(ColormapPtr, int, xColorItem *);
-static Bool CMapCloseScreen (int, ScreenPtr);
-static Bool CMapCreateColormap (ColormapPtr);
-static void CMapDestroyColormap (ColormapPtr);
-
-static Bool CMapEnterVT(int, int);
-static Bool CMapSwitchMode(int, DisplayModePtr, int);
-#ifdef XFreeXDGA
-static int  CMapSetDGAMode(int, int, DGADevicePtr);
-#endif
-static int  CMapChangeGamma(int, Gamma);
-
-static void ComputeGamma(CMapScreenPtr);
-static Bool CMapAllocateColormapPrivate(ColormapPtr);
-static void CMapRefreshColors(ColormapPtr, int, int*);
-static void CMapSetOverscan(ColormapPtr, int, int *);
-static void CMapReinstallMap(ColormapPtr);
-static void CMapUnwrapScreen(ScreenPtr pScreen);
-
-
-
-Bool xf86HandleColormaps(
-    ScreenPtr pScreen,
-    int maxColors,
-    int sigRGBbits,
-    xf86LoadPaletteProc *loadPalette,
-    xf86SetOverscanProc *setOverscan,
-    unsigned int flags
-){
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    ColormapPtr pDefMap = NULL;
-    CMapScreenPtr pScreenPriv;  
-    LOCO *gamma; 
-    int *indices; 
-    int elements;
-
-    /* If we support a better colormap system, then pretend we succeeded. */
-    if (xf86_crtc_supports_gamma(pScrn))
-	return TRUE;
-
-    if(!maxColors || !sigRGBbits || !loadPalette)
-	return FALSE;
-
-    CMapScreenKey = &CMapScreenKeyIndex;
-
-    elements = 1 << sigRGBbits;
-
-    if(!(gamma = xalloc(elements * sizeof(LOCO))))
-    	return FALSE;
-
-    if(!(indices = xalloc(maxColors * sizeof(int)))) {
-	xfree(gamma);
-	return FALSE;
-    }
-      
-    if(!(pScreenPriv = xalloc(sizeof(CMapScreenRec)))) {
-	xfree(gamma);
-	xfree(indices);
-	return FALSE;     
-    }
-
-    dixSetPrivate(&pScreen->devPrivates, CMapScreenKey, pScreenPriv);
-     
-    pScreenPriv->CloseScreen = pScreen->CloseScreen;
-    pScreenPriv->CreateColormap = pScreen->CreateColormap;
-    pScreenPriv->DestroyColormap = pScreen->DestroyColormap;
-    pScreenPriv->InstallColormap = pScreen->InstallColormap;
-    pScreenPriv->StoreColors = pScreen->StoreColors;
-    pScreen->CloseScreen = CMapCloseScreen;
-    pScreen->CreateColormap = CMapCreateColormap;
-    pScreen->DestroyColormap = CMapDestroyColormap;
-    pScreen->InstallColormap = CMapInstallColormap;
-    pScreen->StoreColors = CMapStoreColors;
-
-    pScreenPriv->pScrn = pScrn;
-    pScrn->LoadPalette = loadPalette;
-    pScrn->SetOverscan = setOverscan;
-    pScreenPriv->maxColors = maxColors;
-    pScreenPriv->sigRGBbits = sigRGBbits;
-    pScreenPriv->gammaElements = elements;
-    pScreenPriv->gamma = gamma;
-    pScreenPriv->PreAllocIndices = indices;
-    pScreenPriv->maps = NULL;
-    pScreenPriv->flags = flags;
-    pScreenPriv->isDGAmode = FALSE;
-
-    pScreenPriv->EnterVT = pScrn->EnterVT;
-    pScreenPriv->SwitchMode = pScrn->SwitchMode;
-    pScreenPriv->SetDGAMode = pScrn->SetDGAMode;    
-    pScreenPriv->ChangeGamma = pScrn->ChangeGamma;
-
-    if (!(flags & CMAP_LOAD_EVEN_IF_OFFSCREEN)) {
-	pScrn->EnterVT = CMapEnterVT;
-	if ((flags & CMAP_RELOAD_ON_MODE_SWITCH) && pScrn->SwitchMode) 
-	    pScrn->SwitchMode = CMapSwitchMode;
-    }
-#ifdef XFreeXDGA
-    pScrn->SetDGAMode = CMapSetDGAMode;
-#endif
-    pScrn->ChangeGamma = CMapChangeGamma;
- 
-    ComputeGamma(pScreenPriv);
-
-    /* get the default map */
-    dixLookupResourceByType((pointer *)&pDefMap, pScreen->defColormap,
-			    RT_COLORMAP, serverClient, DixInstallAccess);
-    
-    if(!CMapAllocateColormapPrivate(pDefMap)) {
-        CMapUnwrapScreen(pScreen);
-	return FALSE;
-    }
-
-    /* Force the initial map to be loaded */
-    miInstalledMaps[pScreen->myNum] = NULL;
-    CMapInstallColormap(pDefMap);
-    return TRUE;
-}
-
-
-/**** Screen functions ****/
-
-
-static Bool
-CMapCloseScreen (int i, ScreenPtr pScreen)
-{
-    CMapUnwrapScreen(pScreen);
-
-    return (*pScreen->CloseScreen) (i, pScreen);
-}
-
-static Bool
-CMapColormapUseMax(VisualPtr pVisual, CMapScreenPtr pScreenPriv)
-{
-    if (pVisual->nplanes > 16)
-        return TRUE;
-    return ((1 << pVisual->nplanes) > pScreenPriv->maxColors);
-}
-
-static Bool
-CMapAllocateColormapPrivate(ColormapPtr pmap)
-{
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pmap->pScreen->devPrivates, CMapScreenKey);
-    CMapColormapPtr pColPriv;
-    CMapLinkPtr pLink;
-    int numColors;
-    LOCO *colors;
-
-    if (CMapColormapUseMax(pmap->pVisual, pScreenPriv))
-	numColors = pmap->pVisual->ColormapEntries;
-    else 
-	numColors = 1 << pmap->pVisual->nplanes; 
-
-    if(!(colors = xalloc(numColors * sizeof(LOCO))))
-	return FALSE;
-
-    if(!(pColPriv = xalloc(sizeof(CMapColormapRec)))) {
-	xfree(colors);
-	return FALSE;
-    }	
-
-    dixSetPrivate(&pmap->devPrivates, CMapColormapKey, pColPriv);
- 
-    pColPriv->numColors = numColors;
-    pColPriv->colors = colors;
-    pColPriv->recalculate = TRUE;
-    pColPriv->overscan = -1;
-
-    /* add map to list */
-    pLink = xalloc(sizeof(CMapLink));
-    if(pLink) {
-	pLink->cmap = pmap;
-	pLink->next = pScreenPriv->maps;
-	pScreenPriv->maps = pLink;
-    }
-
-    return TRUE;
-}
-
-static Bool 
-CMapCreateColormap (ColormapPtr pmap)
-{
-    ScreenPtr pScreen = pmap->pScreen;
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-    Bool ret = FALSE;
-
-    pScreen->CreateColormap = pScreenPriv->CreateColormap;
-    if((*pScreen->CreateColormap)(pmap)) { 
-	if(CMapAllocateColormapPrivate(pmap)) 
-	   ret = TRUE;
-    }
-    pScreen->CreateColormap = CMapCreateColormap;
-
-    return ret;
-}
-
-static void
-CMapDestroyColormap (ColormapPtr cmap)
-{
-    ScreenPtr pScreen = cmap->pScreen;
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(
-	&cmap->devPrivates, CMapColormapKey);
-    CMapLinkPtr prevLink = NULL, pLink = pScreenPriv->maps;
-
-    if(pColPriv) {
-	if(pColPriv->colors) xfree(pColPriv->colors);
-	xfree(pColPriv);
-    }
-   
-    /* remove map from list */
-    while(pLink) {
-	if(pLink->cmap == cmap) {
-	   if(prevLink)
-		prevLink->next = pLink->next;
-	   else
-		pScreenPriv->maps = pLink->next;
-	   xfree(pLink);
-	   break;
-	}
-	prevLink = pLink;
-	pLink = pLink->next;
-    }
-
-    if(pScreenPriv->DestroyColormap) {
-    	pScreen->DestroyColormap = pScreenPriv->DestroyColormap;
-	(*pScreen->DestroyColormap)(cmap);
-    	pScreen->DestroyColormap = CMapDestroyColormap;
-    }
-}
-
-
-
-static void
-CMapStoreColors(
-     ColormapPtr	pmap,
-     int		ndef,
-     xColorItem	        *pdefs
-){
-    ScreenPtr 	pScreen = pmap->pScreen;
-    VisualPtr	pVisual = pmap->pVisual;
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-    int 	*indices = pScreenPriv->PreAllocIndices;
-    int		num = ndef;
-
-    /* At the moment this isn't necessary since there's nobody below us */
-    pScreen->StoreColors = pScreenPriv->StoreColors;
-    (*pScreen->StoreColors)(pmap, ndef, pdefs); 
-    pScreen->StoreColors = CMapStoreColors;
-
-    /* should never get here for these */
-    if(	(pVisual->class == TrueColor) ||
-	(pVisual->class == StaticColor) ||
-	(pVisual->class == StaticGray))
-	return;
-
-    if(pVisual->class == DirectColor) {
-	CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(
-	    &pmap->devPrivates, CMapColormapKey);
-	int i;
-
-	if (CMapColormapUseMax(pVisual, pScreenPriv)) {
-	    int index;
-
-	    num = 0;
-	    while(ndef--) {
-		if(pdefs[ndef].flags & DoRed) {
-		    index = (pdefs[ndef].pixel & pVisual->redMask) >>
-					pVisual->offsetRed;
-		    i = num;
-		    while(i--)
-			if(indices[i] == index) break;
-		    if(i == -1)
-			indices[num++] = index;
-		}
-		if(pdefs[ndef].flags & DoGreen) {
-		    index = (pdefs[ndef].pixel & pVisual->greenMask) >>
-					pVisual->offsetGreen;
-		    i = num;
-		    while(i--)
-			if(indices[i] == index) break;
-		    if(i == -1)
-			indices[num++] = index;
-		}
-		if(pdefs[ndef].flags & DoBlue) {
-		    index = (pdefs[ndef].pixel & pVisual->blueMask) >>
-					pVisual->offsetBlue;
-		    i = num;
-		    while(i--)
-			if(indices[i] == index) break;
-		    if(i == -1)
-			indices[num++] = index;
-		}
-	    }
-
-	} else {
-	    /* not really as overkill as it seems */
-	    num = pColPriv->numColors;
-	    for(i = 0; i < pColPriv->numColors; i++)
-		indices[i] = i;
-	}
-    } else {
-	while(ndef--)
-	   indices[ndef] = pdefs[ndef].pixel;
-    } 
-
-    CMapRefreshColors(pmap, num, indices);
-}
-
-
-static void
-CMapInstallColormap(ColormapPtr pmap)
-{
-    ScreenPtr 	  pScreen = pmap->pScreen;
-    int		  index = pScreen->myNum;
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-
-    if (pmap == miInstalledMaps[index])
-	return;
-
-    pScreen->InstallColormap = pScreenPriv->InstallColormap;
-    (*pScreen->InstallColormap)(pmap);
-    pScreen->InstallColormap = CMapInstallColormap;
-
-    /* Important. We let the lower layers, namely DGA, 
-       overwrite the choice of Colormap to install */
-    if (miInstalledMaps[index])
-	pmap = miInstalledMaps[index];
-
-    if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
-	 (pmap->pVisual->class == TrueColor) &&
-	 CMapColormapUseMax(pmap->pVisual, pScreenPriv))
-	return;
-
-    if(LOAD_PALETTE(pmap, index))
-	CMapReinstallMap(pmap);
-}
-
-
-/**** ScrnInfoRec functions ****/
-
-static Bool 
-CMapEnterVT(int index, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-
-    if((*pScreenPriv->EnterVT)(index, flags)) {
-	if(miInstalledMaps[index])
-	    CMapReinstallMap(miInstalledMaps[index]);
-	return TRUE;
-    }
-    return FALSE;
-}
-
-
-static Bool 
-CMapSwitchMode(int index, DisplayModePtr mode, int flags)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-
-    if((*pScreenPriv->SwitchMode)(index, mode, flags)) {
-	if(miInstalledMaps[index])
-	    CMapReinstallMap(miInstalledMaps[index]);
-	return TRUE;
-    }
-    return FALSE;
-}
-
-#ifdef XFreeXDGA
-static int  
-CMapSetDGAMode(int index, int num, DGADevicePtr dev)
-{
-    ScreenPtr pScreen = screenInfo.screens[index];
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-    int ret;
-
-    ret = (*pScreenPriv->SetDGAMode)(index, num, dev);
-
-    pScreenPriv->isDGAmode = DGAActive(index);
-
-    if(!pScreenPriv->isDGAmode && miInstalledMaps[index] 
-         && xf86Screens[pScreen->myNum]->vtSema)
-	CMapReinstallMap(miInstalledMaps[index]);
-
-    return ret;
-}
-#endif
-
-
-/**** Utilities ****/
-
-static void
-CMapReinstallMap(ColormapPtr pmap)
-{
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pmap->pScreen->devPrivates, CMapScreenKey);
-    CMapColormapPtr cmapPriv = (CMapColormapPtr)dixLookupPrivate(
-	&pmap->devPrivates, CMapColormapKey);
-    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];
-    int i = cmapPriv->numColors;
-    int *indices = pScreenPriv->PreAllocIndices;
-
-    while(i--)
-	indices[i] = i;
-   
-    if(cmapPriv->recalculate)
-	CMapRefreshColors(pmap, cmapPriv->numColors, indices);
-    else {
-	(*pScrn->LoadPalette)(pScrn, cmapPriv->numColors,
- 			indices, cmapPriv->colors, pmap->pVisual);
-	if (pScrn->SetOverscan) {
-#ifdef DEBUGOVERSCAN
-	    ErrorF("SetOverscan() called from CMapReinstallMap\n");
-#endif
-	    pScrn->SetOverscan(pScrn, cmapPriv->overscan);
-	}
-    }
-
-    cmapPriv->recalculate = FALSE;
-}
-
-
-static void 
-CMapRefreshColors(ColormapPtr pmap, int defs, int* indices)
-{
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pmap->pScreen->devPrivates, CMapScreenKey);
-    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(
-	&pmap->devPrivates, CMapColormapKey);
-    VisualPtr pVisual = pmap->pVisual;
-    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];
-    int numColors, i;
-    LOCO *gamma, *colors;
-    EntryPtr entry;
-    int reds, greens, blues, maxValue, index, shift;
-
-    numColors = pColPriv->numColors;
-    shift = 16 - pScreenPriv->sigRGBbits;
-    maxValue = (1 << pScreenPriv->sigRGBbits) - 1;
-    gamma = pScreenPriv->gamma;
-    colors = pColPriv->colors;
-
-    reds = pVisual->redMask >> pVisual->offsetRed;
-    greens = pVisual->greenMask >> pVisual->offsetGreen;
-    blues = pVisual->blueMask >> pVisual->offsetBlue;
-
-    switch(pVisual->class) {
-    case StaticGray:
-	for(i = 0; i < numColors; i++) { 
-	    index = (i+1) * maxValue / numColors;
-	    colors[i].red   = gamma[index].red;
-	    colors[i].green = gamma[index].green;
-	    colors[i].blue  = gamma[index].blue;
-	}
-	break;
-    case TrueColor:
-        if (CMapColormapUseMax(pVisual, pScreenPriv)) {
-	    for(i = 0; i <= reds; i++) 
-		colors[i].red   = gamma[i * maxValue / reds].red;
-	    for(i = 0; i <= greens; i++) 
-		colors[i].green = gamma[i * maxValue / greens].green;
-	    for(i = 0; i <= blues; i++) 
-		colors[i].blue  = gamma[i * maxValue / blues].blue;
-	    break;
-	}
-	for(i = 0; i < numColors; i++) {
-	    colors[i].red   = gamma[((i >> pVisual->offsetRed) & reds) * 
-					maxValue / reds].red;
-	    colors[i].green = gamma[((i >> pVisual->offsetGreen) & greens) * 
-					maxValue / greens].green;
-	    colors[i].blue  = gamma[((i >> pVisual->offsetBlue) & blues) * 
-					maxValue / blues].blue;
-	}
-	break;
-    case StaticColor:
-    case PseudoColor:
-    case GrayScale:
-	for(i = 0; i < defs; i++) { 
-	    index = indices[i];
-	    entry = (EntryPtr)&pmap->red[index];
-
-	    if(entry->fShared) {
-		colors[index].red = 
-			gamma[entry->co.shco.red->color >> shift].red;
-		colors[index].green = 
-			gamma[entry->co.shco.green->color >> shift].green;
-		colors[index].blue = 
-			gamma[entry->co.shco.blue->color >> shift].blue;
-	    } else {
-		colors[index].red   = 
-				gamma[entry->co.local.red >> shift].red;
-		colors[index].green = 
-				gamma[entry->co.local.green >> shift].green;
-		colors[index].blue  = 
-				gamma[entry->co.local.blue >> shift].blue;
-	    }
-	}
-	break;
-    case DirectColor:
-        if (CMapColormapUseMax(pVisual, pScreenPriv)) {
-	    for(i = 0; i < defs; i++) { 
-		index = indices[i];
-		if(index <= reds)
-		    colors[index].red   = 
-			gamma[pmap->red[index].co.local.red >> shift].red;
-		if(index <= greens)
-		    colors[index].green = 
-			gamma[pmap->green[index].co.local.green >> shift].green;
-		if(index <= blues)
-		    colors[index].blue   = 
-			gamma[pmap->blue[index].co.local.blue >> shift].blue;
-
-	    }
-	    break;
-	}
-	for(i = 0; i < defs; i++) { 
-	    index = indices[i];
-
-	    colors[index].red   = gamma[pmap->red[
-				(index >> pVisual->offsetRed) & reds
-				].co.local.red >> shift].red;
-	    colors[index].green = gamma[pmap->green[
-				(index >> pVisual->offsetGreen) & greens
-				].co.local.green >> shift].green;
-	    colors[index].blue  = gamma[pmap->blue[
-				(index >> pVisual->offsetBlue) & blues
-				].co.local.blue >> shift].blue;
-	}
-	break;
-    }
-
-
-    if(LOAD_PALETTE(pmap, pmap->pScreen->myNum))
-	(*pScrn->LoadPalette)(pScreenPriv->pScrn, defs, indices,
- 					colors, pmap->pVisual);
-
-    if (pScrn->SetOverscan)
-	CMapSetOverscan(pmap, defs, indices);
-
-}
-
-static Bool
-CMapCompareColors(LOCO *color1, LOCO *color2)
-{
-    /* return TRUE if the color1 is "closer" to black than color2 */
-#ifdef DEBUGOVERSCAN
-    ErrorF("#%02x%02x%02x vs #%02x%02x%02x (%d vs %d)\n",
-	color1->red, color1->green, color1->blue,
-	color2->red, color2->green, color2->blue,
-	color1->red + color1->green + color1->blue,
-	color2->red + color2->green + color2->blue);
-#endif
-    return (color1->red + color1->green + color1->blue <
-	    color2->red + color2->green + color2->blue);
-}
-
-static void
-CMapSetOverscan(ColormapPtr pmap, int defs, int *indices)
-{
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pmap->pScreen->devPrivates, CMapScreenKey);
-    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(
-	&pmap->devPrivates, CMapColormapKey);
-    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];
-    VisualPtr pVisual = pmap->pVisual;
-    int i;
-    LOCO *colors;
-    int index;
-    Bool newOverscan = FALSE;
-    int overscan, tmpOverscan;
-
-    colors = pColPriv->colors;
-    overscan = pColPriv->overscan;
-
-    /*
-     * Search for a new overscan index in the following cases:
-     *
-     *   - The index hasn't yet been initialised.  In this case search
-     *     for an index that is black or a close match to black.
-     *
-     *   - The colour of the old index is changed.  In this case search
-     *     all indices for a black or close match to black.
-     *
-     *   - The colour of the old index wasn't black.  In this case only
-     *     search the indices that were changed for a better match to black.
-     */
-
-    switch (pVisual->class) {
-    case StaticGray:
-    case TrueColor:
-	/* Should only come here once.  Initialise the overscan index to 0 */
-	overscan = 0;
-	newOverscan = TRUE;
-	break;
-    case StaticColor:
-	/*
-         * Only come here once, but search for the overscan in the same way
-         * as for the other cases.
-	 */
-    case DirectColor:
-    case PseudoColor:
-    case GrayScale:
-	if (overscan < 0 || overscan > pScreenPriv->maxColors - 1) {
-	    /* Uninitialised */
-	    newOverscan = TRUE;
-	} else {
-	    /* Check if the overscan was changed */
-	    for (i = 0; i < defs; i++) {
-		index = indices[i];
-		if (index == overscan) {
-		    newOverscan = TRUE;
-		    break;
-		}
-	    }
-	}
-	if (newOverscan) {
-	    /* The overscan is either uninitialised or it has been changed */
-
-	    if (overscan < 0 || overscan > pScreenPriv->maxColors - 1)
-		tmpOverscan = pScreenPriv->maxColors - 1;
-	    else
-		tmpOverscan = overscan;
-
-	    /* search all entries for a close match to black */
-	    for (i = pScreenPriv->maxColors - 1; i >= 0; i--) {
-		if (colors[i].red == 0 && colors[i].green == 0 &&
-		    colors[i].blue == 0) {
-		    overscan = i;
-#ifdef DEBUGOVERSCAN
-		    ErrorF("Black found at index 0x%02x\n", i);
-#endif
-		    break;
-		} else {
-#ifdef DEBUGOVERSCAN
-		    ErrorF("0x%02x: ", i);
-#endif
-		    if (CMapCompareColors(&colors[i], &colors[tmpOverscan])) {
-			tmpOverscan = i;
-#ifdef DEBUGOVERSCAN
-			ErrorF("possible \"Black\" at index 0x%02x\n", i);
-#endif
-		    }
-		}
-	    }
-	    if (i < 0)
-		overscan = tmpOverscan;
-	} else {
-	    /* Check of the old overscan wasn't black */
-	    if (colors[overscan].red != 0 || colors[overscan].green != 0 ||
-		colors[overscan].blue != 0) {
-		int oldOverscan = tmpOverscan = overscan;
-		/* See of there is now a better match */
-		for (i = 0; i < defs; i++) {
-		    index = indices[i];
-		    if (colors[index].red == 0 && colors[index].green == 0 &&
-			colors[index].blue == 0) {
-			overscan = index;
-#ifdef DEBUGOVERSCAN
-			ErrorF("Black found at index 0x%02x\n", index);
-#endif
-			break;
-		    } else {
-#ifdef DEBUGOVERSCAN
-			ErrorF("0x%02x: ", index);
-#endif
-			if (CMapCompareColors(&colors[index],
-					      &colors[tmpOverscan])) {
-			    tmpOverscan = index;
-#ifdef DEBUGOVERSCAN
-			    ErrorF("possible \"Black\" at index 0x%02x\n",
-				   index);
-#endif
-			}
-		    }
-		}
-		if (i == defs)
-		    overscan = tmpOverscan;
-		if (overscan != oldOverscan)
-		    newOverscan = TRUE;
-	    }
-	}
-	break;
-    }
-    if (newOverscan) {
-	pColPriv->overscan = overscan;
-	if (LOAD_PALETTE(pmap, pmap->pScreen->myNum)) {
-#ifdef DEBUGOVERSCAN
-	    ErrorF("SetOverscan() called from CmapSetOverscan\n");
-#endif
-	    pScrn->SetOverscan(pScreenPriv->pScrn, overscan);
-	}
-    }
-}
-
-static void
-CMapUnwrapScreen(ScreenPtr pScreen)
-{
-    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(
-	&pScreen->devPrivates, CMapScreenKey);
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-
-    pScreen->CloseScreen = pScreenPriv->CloseScreen;
-    pScreen->CreateColormap = pScreenPriv->CreateColormap;
-    pScreen->DestroyColormap = pScreenPriv->DestroyColormap;
-    pScreen->InstallColormap = pScreenPriv->InstallColormap;
-    pScreen->StoreColors = pScreenPriv->StoreColors;
-
-    pScrn->EnterVT = pScreenPriv->EnterVT; 
-    pScrn->SwitchMode = pScreenPriv->SwitchMode; 
-    pScrn->SetDGAMode = pScreenPriv->SetDGAMode; 
-    pScrn->ChangeGamma = pScreenPriv->ChangeGamma;
-
-    xfree(pScreenPriv->gamma);
-    xfree(pScreenPriv->PreAllocIndices);
-    xfree(pScreenPriv);
-}
-
-
-static void 
-ComputeGamma(CMapScreenPtr priv)
-{
-    int elements = priv->gammaElements - 1;
-    double RedGamma, GreenGamma, BlueGamma;
-    int i;
-
-#ifndef DONT_CHECK_GAMMA
-    /* This check is to catch drivers that are not initialising pScrn->gamma */
-    if (priv->pScrn->gamma.red < GAMMA_MIN ||
-	priv->pScrn->gamma.red > GAMMA_MAX ||
-	priv->pScrn->gamma.green < GAMMA_MIN ||
-	priv->pScrn->gamma.green > GAMMA_MAX ||
-	priv->pScrn->gamma.blue < GAMMA_MIN ||
-	priv->pScrn->gamma.blue > GAMMA_MAX) {
-
-	xf86DrvMsgVerb(priv->pScrn->scrnIndex, X_WARNING, 0,
-	    "The %s driver didn't call xf86SetGamma() to initialise\n"
-	    "\tthe gamma values.\n", priv->pScrn->driverName);
-	xf86DrvMsgVerb(priv->pScrn->scrnIndex, X_WARNING, 0,
-	    "PLEASE FIX THE `%s' DRIVER!\n", priv->pScrn->driverName);
-	priv->pScrn->gamma.red = 1.0;
-	priv->pScrn->gamma.green = 1.0;
-	priv->pScrn->gamma.blue = 1.0;
-    }
-#endif
-
-    RedGamma = 1.0 / (double)priv->pScrn->gamma.red;
-    GreenGamma = 1.0 / (double)priv->pScrn->gamma.green;
-    BlueGamma = 1.0 / (double)priv->pScrn->gamma.blue;
-    
-    for(i = 0; i <= elements; i++) {
-	if(RedGamma == 1.0)  
-	    priv->gamma[i].red = i;
-	else
-	    priv->gamma[i].red = (CARD16)(pow((double)i/(double)elements,
-			RedGamma) * (double)elements + 0.5);
-
-	if(GreenGamma == 1.0)  
-	    priv->gamma[i].green = i;
-	else
-	    priv->gamma[i].green = (CARD16)(pow((double)i/(double)elements,
-			GreenGamma) * (double)elements + 0.5);
-
-	if(BlueGamma == 1.0)  
-	    priv->gamma[i].blue = i;
-	else
-	    priv->gamma[i].blue = (CARD16)(pow((double)i/(double)elements,
-			BlueGamma) * (double)elements + 0.5);
-    }
-}
-
-
-int
-CMapChangeGamma(
-   int index,
-   Gamma gamma
-){
-    int ret = Success;
-    ScrnInfoPtr pScrn = xf86Screens[index];
-    ScreenPtr pScreen = pScrn->pScreen;
-    CMapColormapPtr pColPriv;
-    CMapScreenPtr pScreenPriv;
-    CMapLinkPtr pLink;
-        
-    /* Is this sufficient checking ? */
-    if(CMapScreenKey == NULL)
-	return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  CMapScreenKey);
-    if(!pScreenPriv)
-	return BadImplementation;
- 
-    if (gamma.red < GAMMA_MIN || gamma.red > GAMMA_MAX ||
-	gamma.green < GAMMA_MIN || gamma.green > GAMMA_MAX ||
-	gamma.blue < GAMMA_MIN || gamma.blue > GAMMA_MAX)
-	return BadValue;
-
-    pScrn->gamma.red = gamma.red;
-    pScrn->gamma.green = gamma.green;
-    pScrn->gamma.blue = gamma.blue;
-
-    ComputeGamma(pScreenPriv);
-
-    /* mark all colormaps on this screen */
-    pLink = pScreenPriv->maps;
-    while(pLink) {
-    	pColPriv = (CMapColormapPtr)dixLookupPrivate(&pLink->cmap->devPrivates,
-						     CMapColormapKey);
-	pColPriv->recalculate = TRUE;
-	pLink = pLink->next;
-    }
-
-    if(miInstalledMaps[pScreen->myNum] && 
-       ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||
-	pScrn->vtSema || pScreenPriv->isDGAmode)) {
-	ColormapPtr pMap = miInstalledMaps[pScreen->myNum];
-
-	if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
-	    (pMap->pVisual->class == TrueColor) &&
-	    CMapColormapUseMax(pMap->pVisual, pScreenPriv)) {
-
-	    /* if the current map doesn't have a palette look
-		for another map to change the gamma on. */
-
-	    pLink = pScreenPriv->maps;
-	    while(pLink) {
-		if(pLink->cmap->pVisual->class == PseudoColor)
-		    break;
-		pLink = pLink->next;
-	    }
-
-	    if(pLink) {
-		/* need to trick CMapRefreshColors() into thinking 
-		   this is the currently installed map */
-		miInstalledMaps[pScreen->myNum] = pLink->cmap;
-		CMapReinstallMap(pLink->cmap);
-		miInstalledMaps[pScreen->myNum] = pMap;
-	    }
-	} else
-	    CMapReinstallMap(pMap);
-    }
-
-    pScrn->ChangeGamma = pScreenPriv->ChangeGamma;
-    if (pScrn->ChangeGamma)
-	ret = pScrn->ChangeGamma(index, gamma);
-    pScrn->ChangeGamma = CMapChangeGamma;
-
-    return ret;
-}
-
-
-static void
-ComputeGammaRamp (
-    CMapScreenPtr priv,
-    unsigned short *red,
-    unsigned short *green,
-    unsigned short *blue
-){
-    int elements = priv->gammaElements;
-    LOCO *entry = priv->gamma;
-    int shift = 16 - priv->sigRGBbits;
-
-    while(elements--) {
-	entry->red = *(red++) >> shift;
-	entry->green = *(green++) >> shift;
-	entry->blue = *(blue++) >> shift;
-	entry++;
-    }
-}
-
-int
-xf86ChangeGammaRamp(
-   ScreenPtr pScreen,
-   int size,
-   unsigned short *red, 
-   unsigned short *green,
-   unsigned short *blue
-){
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    CMapColormapPtr pColPriv;
-    CMapScreenPtr pScreenPriv;
-    CMapLinkPtr pLink;
-
-    if (xf86_crtc_supports_gamma(pScrn)) {
-	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
-	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;
-
-	if (crtc->gammaSize != size)
-	    return BadValue;
-
-	RRCrtcGammaSet(crtc, red, green, blue);
-
-	return Success;
-    }
-
-    if(CMapScreenKey == NULL)
-        return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  CMapScreenKey);
-    if(!pScreenPriv)
-        return BadImplementation;
-
-    if(pScreenPriv->gammaElements != size)
-	return BadValue;
-
-    ComputeGammaRamp(pScreenPriv, red, green, blue);
-
-    /* mark all colormaps on this screen */
-    pLink = pScreenPriv->maps;
-    while(pLink) {
-    	pColPriv = (CMapColormapPtr)dixLookupPrivate(&pLink->cmap->devPrivates,
-						     CMapColormapKey);
-        pColPriv->recalculate = TRUE;
-        pLink = pLink->next;
-    }
-
-    if(miInstalledMaps[pScreen->myNum] &&
-       ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||
-        pScrn->vtSema || pScreenPriv->isDGAmode)) {
-        ColormapPtr pMap = miInstalledMaps[pScreen->myNum];
-
-        if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&
-            (pMap->pVisual->class == TrueColor) &&
-	    CMapColormapUseMax(pMap->pVisual, pScreenPriv)) {
-
-            /* if the current map doesn't have a palette look
-                for another map to change the gamma on. */
-
-            pLink = pScreenPriv->maps;
-            while(pLink) {
-                if(pLink->cmap->pVisual->class == PseudoColor)
-                    break;
-                pLink = pLink->next;
-            }
-
-            if(pLink) {
-                /* need to trick CMapRefreshColors() into thinking
-                   this is the currently installed map */
-                miInstalledMaps[pScreen->myNum] = pLink->cmap;
-                CMapReinstallMap(pLink->cmap);
-                miInstalledMaps[pScreen->myNum] = pMap;
-            }
-        } else
-            CMapReinstallMap(pMap);
-    }
-
-    return Success;
-}
-
-int
-xf86GetGammaRampSize(ScreenPtr pScreen)
-{
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    CMapScreenPtr pScreenPriv;
-
-    if (xf86_crtc_supports_gamma(pScrn)) {
-	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
-	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;
-
-	return crtc->gammaSize;
-    }
-
-    if(CMapScreenKey == NULL) return 0;
-
-    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  CMapScreenKey);
-    if(!pScreenPriv) return 0;
-
-    return pScreenPriv->gammaElements;
-}
-
-int
-xf86GetGammaRamp(
-   ScreenPtr pScreen,
-   int size,
-   unsigned short *red,
-   unsigned short *green,
-   unsigned short *blue
-){
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-    CMapScreenPtr pScreenPriv;
-    LOCO *entry;
-    int shift, sigbits;
-
-    if (xf86_crtc_supports_gamma(pScrn)) {
-	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
-	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;
-
-	if (crtc->gammaSize < size)
-	    return BadValue;
-
-	if (!RRCrtcGammaGet(crtc))
-	    return BadImplementation;
-
-	memcpy(red, crtc->gammaRed, size * sizeof(*red));
-	memcpy(green, crtc->gammaGreen, size * sizeof(*green));
-	memcpy(blue, crtc->gammaBlue, size * sizeof(*blue));
-
-	return Success;
-    }
-
-    if(CMapScreenKey == NULL) 
-	return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
-						  CMapScreenKey);
-    if(!pScreenPriv) 
-	return BadImplementation;
-
-    if(size > pScreenPriv->gammaElements)
-	return BadValue;
-
-    entry = pScreenPriv->gamma;
-    sigbits = pScreenPriv->sigRGBbits;
-
-    while(size--) {
-	*red = entry->red << (16 - sigbits);
-	*green = entry->green << (16 - sigbits);
-	*blue = entry->blue << (16 - sigbits);
-	shift = sigbits;
-	while(shift < 16) {
-	    *red |= *red >> shift;
-	    *green |= *green >> shift;
-	    *blue |= *blue >> shift;
-	    shift += sigbits;
-	}
-	red++; green++; blue++;
-        entry++;
-    }
-
-    return Success;
-}
-
-int
-xf86ChangeGamma(
-   ScreenPtr pScreen,
-   Gamma gamma
-){
-    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
-
-    if(pScrn->ChangeGamma)
-	return (*pScrn->ChangeGamma)(pScreen->myNum, gamma);
-
-    return BadImplementation;
-}
+/*

+ * Copyright (c) 1998-2001 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).

+ */

+

+#ifdef HAVE_XORG_CONFIG_H

+#include <xorg-config.h>

+#endif

+

+#if defined(_XOPEN_SOURCE) || defined(sun) && defined(__SVR4)

+#include <math.h>

+#else

+#define _XOPEN_SOURCE   /* to get prototype for pow on some systems */

+#include <math.h>

+#undef _XOPEN_SOURCE

+#endif

+

+#include <X11/X.h>

+#include "misc.h"

+#include <X11/Xproto.h>

+#include "colormapst.h"

+#include "scrnintstr.h"

+

+#include "resource.h"

+

+#include "xf86.h"

+#include "xf86_OSproc.h"

+#include "xf86str.h"

+#include "micmap.h"

+#include "xf86Crtc.h"

+

+#ifdef XFreeXDGA

+#include <X11/extensions/xf86dgaproto.h>

+#include "dgaproc.h"

+#endif

+

+#include "xf86cmap.h"

+

+#define SCREEN_PROLOGUE(pScreen, field) ((pScreen)->field = \

+    ((CMapScreenPtr)dixLookupPrivate(&(pScreen)->devPrivates, CMapScreenKey))->field)

+#define SCREEN_EPILOGUE(pScreen, field, wrapper)\

+    ((pScreen)->field = wrapper)

+

+#define LOAD_PALETTE(pmap, index) \

+    ((pmap == miInstalledMaps[index]) && \

+     ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) || \

+      xf86Screens[index]->vtSema || pScreenPriv->isDGAmode))

+

+

+typedef struct _CMapLink {

+  ColormapPtr		cmap;

+  struct _CMapLink	*next;

+} CMapLink, *CMapLinkPtr;

+

+typedef struct {

+  ScrnInfoPtr			pScrn;

+  CloseScreenProcPtr		CloseScreen;

+  CreateColormapProcPtr 	CreateColormap;

+  DestroyColormapProcPtr	DestroyColormap;

+  InstallColormapProcPtr	InstallColormap;

+  StoreColorsProcPtr		StoreColors;

+  Bool				(*EnterVT)(int, int);

+  Bool				(*SwitchMode)(int, DisplayModePtr, int);

+  int				(*SetDGAMode)(int, int, DGADevicePtr);

+  xf86ChangeGammaProc		*ChangeGamma;

+  int				maxColors;

+  int				sigRGBbits;

+  int				gammaElements;

+  LOCO				*gamma;

+  int				*PreAllocIndices;

+  CMapLinkPtr			maps;

+  unsigned int			flags;

+  Bool				isDGAmode;

+} CMapScreenRec, *CMapScreenPtr;

+

+typedef struct {

+  int		numColors;

+  LOCO		*colors;

+  Bool		recalculate;

+  int		overscan;

+} CMapColormapRec, *CMapColormapPtr;

+

+static int CMapScreenKeyIndex;

+static DevPrivateKey CMapScreenKey;

+static int CMapColormapKeyIndex;

+static DevPrivateKey CMapColormapKey = &CMapColormapKeyIndex;

+

+static void CMapInstallColormap(ColormapPtr);

+static void CMapStoreColors(ColormapPtr, int, xColorItem *);

+static Bool CMapCloseScreen (int, ScreenPtr);

+static Bool CMapCreateColormap (ColormapPtr);

+static void CMapDestroyColormap (ColormapPtr);

+

+static Bool CMapEnterVT(int, int);

+static Bool CMapSwitchMode(int, DisplayModePtr, int);

+#ifdef XFreeXDGA

+static int  CMapSetDGAMode(int, int, DGADevicePtr);

+#endif

+static int  CMapChangeGamma(int, Gamma);

+

+static void ComputeGamma(CMapScreenPtr);

+static Bool CMapAllocateColormapPrivate(ColormapPtr);

+static void CMapRefreshColors(ColormapPtr, int, int*);

+static void CMapSetOverscan(ColormapPtr, int, int *);

+static void CMapReinstallMap(ColormapPtr);

+static void CMapUnwrapScreen(ScreenPtr pScreen);

+

+

+

+Bool xf86HandleColormaps(

+    ScreenPtr pScreen,

+    int maxColors,

+    int sigRGBbits,

+    xf86LoadPaletteProc *loadPalette,

+    xf86SetOverscanProc *setOverscan,

+    unsigned int flags

+){

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    ColormapPtr pDefMap = NULL;

+    CMapScreenPtr pScreenPriv;  

+    LOCO *gamma; 

+    int *indices; 

+    int elements;

+

+    /* If we support a better colormap system, then pretend we succeeded. */

+    if (xf86_crtc_supports_gamma(pScrn))

+	return TRUE;

+

+    if(!maxColors || !sigRGBbits || !loadPalette)

+	return FALSE;

+

+    CMapScreenKey = &CMapScreenKeyIndex;

+

+    elements = 1 << sigRGBbits;

+

+    if(!(gamma = xalloc(elements * sizeof(LOCO))))

+    	return FALSE;

+

+    if(!(indices = xalloc(maxColors * sizeof(int)))) {

+	xfree(gamma);

+	return FALSE;

+    }

+      

+    if(!(pScreenPriv = xalloc(sizeof(CMapScreenRec)))) {

+	xfree(gamma);

+	xfree(indices);

+	return FALSE;     

+    }

+

+    dixSetPrivate(&pScreen->devPrivates, CMapScreenKey, pScreenPriv);

+     

+    pScreenPriv->CloseScreen = pScreen->CloseScreen;

+    pScreenPriv->CreateColormap = pScreen->CreateColormap;

+    pScreenPriv->DestroyColormap = pScreen->DestroyColormap;

+    pScreenPriv->InstallColormap = pScreen->InstallColormap;

+    pScreenPriv->StoreColors = pScreen->StoreColors;

+    pScreen->CloseScreen = CMapCloseScreen;

+    pScreen->CreateColormap = CMapCreateColormap;

+    pScreen->DestroyColormap = CMapDestroyColormap;

+    pScreen->InstallColormap = CMapInstallColormap;

+    pScreen->StoreColors = CMapStoreColors;

+

+    pScreenPriv->pScrn = pScrn;

+    pScrn->LoadPalette = loadPalette;

+    pScrn->SetOverscan = setOverscan;

+    pScreenPriv->maxColors = maxColors;

+    pScreenPriv->sigRGBbits = sigRGBbits;

+    pScreenPriv->gammaElements = elements;

+    pScreenPriv->gamma = gamma;

+    pScreenPriv->PreAllocIndices = indices;

+    pScreenPriv->maps = NULL;

+    pScreenPriv->flags = flags;

+    pScreenPriv->isDGAmode = FALSE;

+

+    pScreenPriv->EnterVT = pScrn->EnterVT;

+    pScreenPriv->SwitchMode = pScrn->SwitchMode;

+    pScreenPriv->SetDGAMode = pScrn->SetDGAMode;    

+    pScreenPriv->ChangeGamma = pScrn->ChangeGamma;

+

+    if (!(flags & CMAP_LOAD_EVEN_IF_OFFSCREEN)) {

+	pScrn->EnterVT = CMapEnterVT;

+	if ((flags & CMAP_RELOAD_ON_MODE_SWITCH) && pScrn->SwitchMode) 

+	    pScrn->SwitchMode = CMapSwitchMode;

+    }

+#ifdef XFreeXDGA

+    pScrn->SetDGAMode = CMapSetDGAMode;

+#endif

+    pScrn->ChangeGamma = CMapChangeGamma;

+ 

+    ComputeGamma(pScreenPriv);

+

+    /* get the default map */

+    dixLookupResourceByType((pointer *)&pDefMap, pScreen->defColormap,

+			    RT_COLORMAP, serverClient, DixInstallAccess);

+    

+    if(!CMapAllocateColormapPrivate(pDefMap)) {

+        CMapUnwrapScreen(pScreen);

+	return FALSE;

+    }

+

+    /* Force the initial map to be loaded */

+    miInstalledMaps[pScreen->myNum] = NULL;

+    CMapInstallColormap(pDefMap);

+    return TRUE;

+}

+

+

+/**** Screen functions ****/

+

+

+static Bool

+CMapCloseScreen (int i, ScreenPtr pScreen)

+{

+    CMapUnwrapScreen(pScreen);

+

+    return (*pScreen->CloseScreen) (i, pScreen);

+}

+

+static Bool

+CMapColormapUseMax(VisualPtr pVisual, CMapScreenPtr pScreenPriv)

+{

+    if (pVisual->nplanes > 16)

+        return TRUE;

+    return ((1 << pVisual->nplanes) > pScreenPriv->maxColors);

+}

+

+static Bool

+CMapAllocateColormapPrivate(ColormapPtr pmap)

+{

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pmap->pScreen->devPrivates, CMapScreenKey);

+    CMapColormapPtr pColPriv;

+    CMapLinkPtr pLink;

+    int numColors;

+    LOCO *colors;

+

+    if (CMapColormapUseMax(pmap->pVisual, pScreenPriv))

+	numColors = pmap->pVisual->ColormapEntries;

+    else 

+	numColors = 1 << pmap->pVisual->nplanes; 

+

+    if(!(colors = xalloc(numColors * sizeof(LOCO))))

+	return FALSE;

+

+    if(!(pColPriv = xalloc(sizeof(CMapColormapRec)))) {

+	xfree(colors);

+	return FALSE;

+    }	

+

+    dixSetPrivate(&pmap->devPrivates, CMapColormapKey, pColPriv);

+ 

+    pColPriv->numColors = numColors;

+    pColPriv->colors = colors;

+    pColPriv->recalculate = TRUE;

+    pColPriv->overscan = -1;

+

+    /* add map to list */

+    pLink = xalloc(sizeof(CMapLink));

+    if(pLink) {

+	pLink->cmap = pmap;

+	pLink->next = pScreenPriv->maps;

+	pScreenPriv->maps = pLink;

+    }

+

+    return TRUE;

+}

+

+static Bool 

+CMapCreateColormap (ColormapPtr pmap)

+{

+    ScreenPtr pScreen = pmap->pScreen;

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+    Bool ret = FALSE;

+

+    pScreen->CreateColormap = pScreenPriv->CreateColormap;

+    if((*pScreen->CreateColormap)(pmap)) { 

+	if(CMapAllocateColormapPrivate(pmap)) 

+	   ret = TRUE;

+    }

+    pScreen->CreateColormap = CMapCreateColormap;

+

+    return ret;

+}

+

+static void

+CMapDestroyColormap (ColormapPtr cmap)

+{

+    ScreenPtr pScreen = cmap->pScreen;

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(

+	&cmap->devPrivates, CMapColormapKey);

+    CMapLinkPtr prevLink = NULL, pLink = pScreenPriv->maps;

+

+    if(pColPriv) {

+	if(pColPriv->colors) xfree(pColPriv->colors);

+	xfree(pColPriv);

+    }

+   

+    /* remove map from list */

+    while(pLink) {

+	if(pLink->cmap == cmap) {

+	   if(prevLink)

+		prevLink->next = pLink->next;

+	   else

+		pScreenPriv->maps = pLink->next;

+	   xfree(pLink);

+	   break;

+	}

+	prevLink = pLink;

+	pLink = pLink->next;

+    }

+

+    if(pScreenPriv->DestroyColormap) {

+    	pScreen->DestroyColormap = pScreenPriv->DestroyColormap;

+	(*pScreen->DestroyColormap)(cmap);

+    	pScreen->DestroyColormap = CMapDestroyColormap;

+    }

+}

+

+

+

+static void

+CMapStoreColors(

+     ColormapPtr	pmap,

+     int		ndef,

+     xColorItem	        *pdefs

+){

+    ScreenPtr 	pScreen = pmap->pScreen;

+    VisualPtr	pVisual = pmap->pVisual;

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+    int 	*indices = pScreenPriv->PreAllocIndices;

+    int		num = ndef;

+

+    /* At the moment this isn't necessary since there's nobody below us */

+    pScreen->StoreColors = pScreenPriv->StoreColors;

+    (*pScreen->StoreColors)(pmap, ndef, pdefs); 

+    pScreen->StoreColors = CMapStoreColors;

+

+    /* should never get here for these */

+    if(	(pVisual->class == TrueColor) ||

+	(pVisual->class == StaticColor) ||

+	(pVisual->class == StaticGray))

+	return;

+

+    if(pVisual->class == DirectColor) {

+	CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(

+	    &pmap->devPrivates, CMapColormapKey);

+	int i;

+

+	if (CMapColormapUseMax(pVisual, pScreenPriv)) {

+	    int index;

+

+	    num = 0;

+	    while(ndef--) {

+		if(pdefs[ndef].flags & DoRed) {

+		    index = (pdefs[ndef].pixel & pVisual->redMask) >>

+					pVisual->offsetRed;

+		    i = num;

+		    while(i--)

+			if(indices[i] == index) break;

+		    if(i == -1)

+			indices[num++] = index;

+		}

+		if(pdefs[ndef].flags & DoGreen) {

+		    index = (pdefs[ndef].pixel & pVisual->greenMask) >>

+					pVisual->offsetGreen;

+		    i = num;

+		    while(i--)

+			if(indices[i] == index) break;

+		    if(i == -1)

+			indices[num++] = index;

+		}

+		if(pdefs[ndef].flags & DoBlue) {

+		    index = (pdefs[ndef].pixel & pVisual->blueMask) >>

+					pVisual->offsetBlue;

+		    i = num;

+		    while(i--)

+			if(indices[i] == index) break;

+		    if(i == -1)

+			indices[num++] = index;

+		}

+	    }

+

+	} else {

+	    /* not really as overkill as it seems */

+	    num = pColPriv->numColors;

+	    for(i = 0; i < pColPriv->numColors; i++)

+		indices[i] = i;

+	}

+    } else {

+	while(ndef--)

+	   indices[ndef] = pdefs[ndef].pixel;

+    } 

+

+    CMapRefreshColors(pmap, num, indices);

+}

+

+

+static void

+CMapInstallColormap(ColormapPtr pmap)

+{

+    ScreenPtr 	  pScreen = pmap->pScreen;

+    int		  index = pScreen->myNum;

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+

+    if (pmap == miInstalledMaps[index])

+	return;

+

+    pScreen->InstallColormap = pScreenPriv->InstallColormap;

+    (*pScreen->InstallColormap)(pmap);

+    pScreen->InstallColormap = CMapInstallColormap;

+

+    /* Important. We let the lower layers, namely DGA, 

+       overwrite the choice of Colormap to install */

+    if (miInstalledMaps[index])

+	pmap = miInstalledMaps[index];

+

+    if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&

+	 (pmap->pVisual->class == TrueColor) &&

+	 CMapColormapUseMax(pmap->pVisual, pScreenPriv))

+	return;

+

+    if(LOAD_PALETTE(pmap, index))

+	CMapReinstallMap(pmap);

+}

+

+

+/**** ScrnInfoRec functions ****/

+

+static Bool 

+CMapEnterVT(int index, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+

+    if((*pScreenPriv->EnterVT)(index, flags)) {

+	if(miInstalledMaps[index])

+	    CMapReinstallMap(miInstalledMaps[index]);

+	return TRUE;

+    }

+    return FALSE;

+}

+

+

+static Bool 

+CMapSwitchMode(int index, DisplayModePtr mode, int flags)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+

+    if((*pScreenPriv->SwitchMode)(index, mode, flags)) {

+	if(miInstalledMaps[index])

+	    CMapReinstallMap(miInstalledMaps[index]);

+	return TRUE;

+    }

+    return FALSE;

+}

+

+#ifdef XFreeXDGA

+static int  

+CMapSetDGAMode(int index, int num, DGADevicePtr dev)

+{

+    ScreenPtr pScreen = screenInfo.screens[index];

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+    int ret;

+

+    ret = (*pScreenPriv->SetDGAMode)(index, num, dev);

+

+    pScreenPriv->isDGAmode = DGAActive(index);

+

+    if(!pScreenPriv->isDGAmode && miInstalledMaps[index] 

+         && xf86Screens[pScreen->myNum]->vtSema)

+	CMapReinstallMap(miInstalledMaps[index]);

+

+    return ret;

+}

+#endif

+

+

+/**** Utilities ****/

+

+static void

+CMapReinstallMap(ColormapPtr pmap)

+{

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pmap->pScreen->devPrivates, CMapScreenKey);

+    CMapColormapPtr cmapPriv = (CMapColormapPtr)dixLookupPrivate(

+	&pmap->devPrivates, CMapColormapKey);

+    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];

+    int i = cmapPriv->numColors;

+    int *indices = pScreenPriv->PreAllocIndices;

+

+    while(i--)

+	indices[i] = i;

+   

+    if(cmapPriv->recalculate)

+	CMapRefreshColors(pmap, cmapPriv->numColors, indices);

+    else {

+	(*pScrn->LoadPalette)(pScrn, cmapPriv->numColors,

+ 			indices, cmapPriv->colors, pmap->pVisual);

+	if (pScrn->SetOverscan) {

+#ifdef DEBUGOVERSCAN

+	    ErrorF("SetOverscan() called from CMapReinstallMap\n");

+#endif

+	    pScrn->SetOverscan(pScrn, cmapPriv->overscan);

+	}

+    }

+

+    cmapPriv->recalculate = FALSE;

+}

+

+

+static void 

+CMapRefreshColors(ColormapPtr pmap, int defs, int* indices)

+{

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pmap->pScreen->devPrivates, CMapScreenKey);

+    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(

+	&pmap->devPrivates, CMapColormapKey);

+    VisualPtr pVisual = pmap->pVisual;

+    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];

+    int numColors, i;

+    LOCO *gamma, *colors;

+    EntryPtr entry;

+    int reds, greens, blues, maxValue, index, shift;

+

+    numColors = pColPriv->numColors;

+    shift = 16 - pScreenPriv->sigRGBbits;

+    maxValue = (1 << pScreenPriv->sigRGBbits) - 1;

+    gamma = pScreenPriv->gamma;

+    colors = pColPriv->colors;

+

+    reds = pVisual->redMask >> pVisual->offsetRed;

+    greens = pVisual->greenMask >> pVisual->offsetGreen;

+    blues = pVisual->blueMask >> pVisual->offsetBlue;

+

+    switch(pVisual->class) {

+    case StaticGray:

+	for(i = 0; i < numColors; i++) { 

+	    index = (i+1) * maxValue / numColors;

+	    colors[i].red   = gamma[index].red;

+	    colors[i].green = gamma[index].green;

+	    colors[i].blue  = gamma[index].blue;

+	}

+	break;

+    case TrueColor:

+        if (CMapColormapUseMax(pVisual, pScreenPriv)) {

+	    for(i = 0; i <= reds; i++) 

+		colors[i].red   = gamma[i * maxValue / reds].red;

+	    for(i = 0; i <= greens; i++) 

+		colors[i].green = gamma[i * maxValue / greens].green;

+	    for(i = 0; i <= blues; i++) 

+		colors[i].blue  = gamma[i * maxValue / blues].blue;

+	    break;

+	}

+	for(i = 0; i < numColors; i++) {

+	    colors[i].red   = gamma[((i >> pVisual->offsetRed) & reds) * 

+					maxValue / reds].red;

+	    colors[i].green = gamma[((i >> pVisual->offsetGreen) & greens) * 

+					maxValue / greens].green;

+	    colors[i].blue  = gamma[((i >> pVisual->offsetBlue) & blues) * 

+					maxValue / blues].blue;

+	}

+	break;

+    case StaticColor:

+    case PseudoColor:

+    case GrayScale:

+	for(i = 0; i < defs; i++) { 

+	    index = indices[i];

+	    entry = (EntryPtr)&pmap->red[index];

+

+	    if(entry->fShared) {

+		colors[index].red = 

+			gamma[entry->co.shco.red->color >> shift].red;

+		colors[index].green = 

+			gamma[entry->co.shco.green->color >> shift].green;

+		colors[index].blue = 

+			gamma[entry->co.shco.blue->color >> shift].blue;

+	    } else {

+		colors[index].red   = 

+				gamma[entry->co.local.red >> shift].red;

+		colors[index].green = 

+				gamma[entry->co.local.green >> shift].green;

+		colors[index].blue  = 

+				gamma[entry->co.local.blue >> shift].blue;

+	    }

+	}

+	break;

+    case DirectColor:

+        if (CMapColormapUseMax(pVisual, pScreenPriv)) {

+	    for(i = 0; i < defs; i++) { 

+		index = indices[i];

+		if(index <= reds)

+		    colors[index].red   = 

+			gamma[pmap->red[index].co.local.red >> shift].red;

+		if(index <= greens)

+		    colors[index].green = 

+			gamma[pmap->green[index].co.local.green >> shift].green;

+		if(index <= blues)

+		    colors[index].blue   = 

+			gamma[pmap->blue[index].co.local.blue >> shift].blue;

+

+	    }

+	    break;

+	}

+	for(i = 0; i < defs; i++) { 

+	    index = indices[i];

+

+	    colors[index].red   = gamma[pmap->red[

+				(index >> pVisual->offsetRed) & reds

+				].co.local.red >> shift].red;

+	    colors[index].green = gamma[pmap->green[

+				(index >> pVisual->offsetGreen) & greens

+				].co.local.green >> shift].green;

+	    colors[index].blue  = gamma[pmap->blue[

+				(index >> pVisual->offsetBlue) & blues

+				].co.local.blue >> shift].blue;

+	}

+	break;

+    }

+

+

+    if(LOAD_PALETTE(pmap, pmap->pScreen->myNum))

+	(*pScrn->LoadPalette)(pScreenPriv->pScrn, defs, indices,

+ 					colors, pmap->pVisual);

+

+    if (pScrn->SetOverscan)

+	CMapSetOverscan(pmap, defs, indices);

+

+}

+

+static Bool

+CMapCompareColors(LOCO *color1, LOCO *color2)

+{

+    /* return TRUE if the color1 is "closer" to black than color2 */

+#ifdef DEBUGOVERSCAN

+    ErrorF("#%02x%02x%02x vs #%02x%02x%02x (%d vs %d)\n",

+	color1->red, color1->green, color1->blue,

+	color2->red, color2->green, color2->blue,

+	color1->red + color1->green + color1->blue,

+	color2->red + color2->green + color2->blue);

+#endif

+    return (color1->red + color1->green + color1->blue <

+	    color2->red + color2->green + color2->blue);

+}

+

+static void

+CMapSetOverscan(ColormapPtr pmap, int defs, int *indices)

+{

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pmap->pScreen->devPrivates, CMapScreenKey);

+    CMapColormapPtr pColPriv = (CMapColormapPtr)dixLookupPrivate(

+	&pmap->devPrivates, CMapColormapKey);

+    ScrnInfoPtr pScrn = xf86Screens[pmap->pScreen->myNum];

+    VisualPtr pVisual = pmap->pVisual;

+    int i;

+    LOCO *colors;

+    int index;

+    Bool newOverscan = FALSE;

+    int overscan, tmpOverscan;

+

+    colors = pColPriv->colors;

+    overscan = pColPriv->overscan;

+

+    /*

+     * Search for a new overscan index in the following cases:

+     *

+     *   - The index hasn't yet been initialised.  In this case search

+     *     for an index that is black or a close match to black.

+     *

+     *   - The colour of the old index is changed.  In this case search

+     *     all indices for a black or close match to black.

+     *

+     *   - The colour of the old index wasn't black.  In this case only

+     *     search the indices that were changed for a better match to black.

+     */

+

+    switch (pVisual->class) {

+    case StaticGray:

+    case TrueColor:

+	/* Should only come here once.  Initialise the overscan index to 0 */

+	overscan = 0;

+	newOverscan = TRUE;

+	break;

+    case StaticColor:

+	/*

+         * Only come here once, but search for the overscan in the same way

+         * as for the other cases.

+	 */

+    case DirectColor:

+    case PseudoColor:

+    case GrayScale:

+	if (overscan < 0 || overscan > pScreenPriv->maxColors - 1) {

+	    /* Uninitialised */

+	    newOverscan = TRUE;

+	} else {

+	    /* Check if the overscan was changed */

+	    for (i = 0; i < defs; i++) {

+		index = indices[i];

+		if (index == overscan) {

+		    newOverscan = TRUE;

+		    break;

+		}

+	    }

+	}

+	if (newOverscan) {

+	    /* The overscan is either uninitialised or it has been changed */

+

+	    if (overscan < 0 || overscan > pScreenPriv->maxColors - 1)

+		tmpOverscan = pScreenPriv->maxColors - 1;

+	    else

+		tmpOverscan = overscan;

+

+	    /* search all entries for a close match to black */

+	    for (i = pScreenPriv->maxColors - 1; i >= 0; i--) {

+		if (colors[i].red == 0 && colors[i].green == 0 &&

+		    colors[i].blue == 0) {

+		    overscan = i;

+#ifdef DEBUGOVERSCAN

+		    ErrorF("Black found at index 0x%02x\n", i);

+#endif

+		    break;

+		} else {

+#ifdef DEBUGOVERSCAN

+		    ErrorF("0x%02x: ", i);

+#endif

+		    if (CMapCompareColors(&colors[i], &colors[tmpOverscan])) {

+			tmpOverscan = i;

+#ifdef DEBUGOVERSCAN

+			ErrorF("possible \"Black\" at index 0x%02x\n", i);

+#endif

+		    }

+		}

+	    }

+	    if (i < 0)

+		overscan = tmpOverscan;

+	} else {

+	    /* Check of the old overscan wasn't black */

+	    if (colors[overscan].red != 0 || colors[overscan].green != 0 ||

+		colors[overscan].blue != 0) {

+		int oldOverscan = tmpOverscan = overscan;

+		/* See of there is now a better match */

+		for (i = 0; i < defs; i++) {

+		    index = indices[i];

+		    if (colors[index].red == 0 && colors[index].green == 0 &&

+			colors[index].blue == 0) {

+			overscan = index;

+#ifdef DEBUGOVERSCAN

+			ErrorF("Black found at index 0x%02x\n", index);

+#endif

+			break;

+		    } else {

+#ifdef DEBUGOVERSCAN

+			ErrorF("0x%02x: ", index);

+#endif

+			if (CMapCompareColors(&colors[index],

+					      &colors[tmpOverscan])) {

+			    tmpOverscan = index;

+#ifdef DEBUGOVERSCAN

+			    ErrorF("possible \"Black\" at index 0x%02x\n",

+				   index);

+#endif

+			}

+		    }

+		}

+		if (i == defs)

+		    overscan = tmpOverscan;

+		if (overscan != oldOverscan)

+		    newOverscan = TRUE;

+	    }

+	}

+	break;

+    }

+    if (newOverscan) {

+	pColPriv->overscan = overscan;

+	if (LOAD_PALETTE(pmap, pmap->pScreen->myNum)) {

+#ifdef DEBUGOVERSCAN

+	    ErrorF("SetOverscan() called from CmapSetOverscan\n");

+#endif

+	    pScrn->SetOverscan(pScreenPriv->pScrn, overscan);

+	}

+    }

+}

+

+static void

+CMapUnwrapScreen(ScreenPtr pScreen)

+{

+    CMapScreenPtr pScreenPriv = (CMapScreenPtr)dixLookupPrivate(

+	&pScreen->devPrivates, CMapScreenKey);

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+

+    pScreen->CloseScreen = pScreenPriv->CloseScreen;

+    pScreen->CreateColormap = pScreenPriv->CreateColormap;

+    pScreen->DestroyColormap = pScreenPriv->DestroyColormap;

+    pScreen->InstallColormap = pScreenPriv->InstallColormap;

+    pScreen->StoreColors = pScreenPriv->StoreColors;

+

+    pScrn->EnterVT = pScreenPriv->EnterVT; 

+    pScrn->SwitchMode = pScreenPriv->SwitchMode; 

+    pScrn->SetDGAMode = pScreenPriv->SetDGAMode; 

+    pScrn->ChangeGamma = pScreenPriv->ChangeGamma;

+

+    xfree(pScreenPriv->gamma);

+    xfree(pScreenPriv->PreAllocIndices);

+    xfree(pScreenPriv);

+}

+

+

+static void 

+ComputeGamma(CMapScreenPtr priv)

+{

+    int elements = priv->gammaElements - 1;

+    double RedGamma, GreenGamma, BlueGamma;

+    int i;

+

+#ifndef DONT_CHECK_GAMMA

+    /* This check is to catch drivers that are not initialising pScrn->gamma */

+    if (priv->pScrn->gamma.red < GAMMA_MIN ||

+	priv->pScrn->gamma.red > GAMMA_MAX ||

+	priv->pScrn->gamma.green < GAMMA_MIN ||

+	priv->pScrn->gamma.green > GAMMA_MAX ||

+	priv->pScrn->gamma.blue < GAMMA_MIN ||

+	priv->pScrn->gamma.blue > GAMMA_MAX) {

+

+	xf86DrvMsgVerb(priv->pScrn->scrnIndex, X_WARNING, 0,

+	    "The %s driver didn't call xf86SetGamma() to initialise\n"

+	    "\tthe gamma values.\n", priv->pScrn->driverName);

+	xf86DrvMsgVerb(priv->pScrn->scrnIndex, X_WARNING, 0,

+	    "PLEASE FIX THE `%s' DRIVER!\n", priv->pScrn->driverName);

+	priv->pScrn->gamma.red = 1.0;

+	priv->pScrn->gamma.green = 1.0;

+	priv->pScrn->gamma.blue = 1.0;

+    }

+#endif

+

+    RedGamma = 1.0 / (double)priv->pScrn->gamma.red;

+    GreenGamma = 1.0 / (double)priv->pScrn->gamma.green;

+    BlueGamma = 1.0 / (double)priv->pScrn->gamma.blue;

+    

+    for(i = 0; i <= elements; i++) {

+	if(RedGamma == 1.0)  

+	    priv->gamma[i].red = i;

+	else

+	    priv->gamma[i].red = (CARD16)(pow((double)i/(double)elements,

+			RedGamma) * (double)elements + 0.5);

+

+	if(GreenGamma == 1.0)  

+	    priv->gamma[i].green = i;

+	else

+	    priv->gamma[i].green = (CARD16)(pow((double)i/(double)elements,

+			GreenGamma) * (double)elements + 0.5);

+

+	if(BlueGamma == 1.0)  

+	    priv->gamma[i].blue = i;

+	else

+	    priv->gamma[i].blue = (CARD16)(pow((double)i/(double)elements,

+			BlueGamma) * (double)elements + 0.5);

+    }

+}

+

+

+int

+CMapChangeGamma(

+   int index,

+   Gamma gamma

+){

+    int ret = Success;

+    ScrnInfoPtr pScrn = xf86Screens[index];

+    ScreenPtr pScreen = pScrn->pScreen;

+    CMapColormapPtr pColPriv;

+    CMapScreenPtr pScreenPriv;

+    CMapLinkPtr pLink;

+        

+    /* Is this sufficient checking ? */

+    if(CMapScreenKey == NULL)

+	return BadImplementation;

+

+    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  CMapScreenKey);

+    if(!pScreenPriv)

+	return BadImplementation;

+ 

+    if (gamma.red < GAMMA_MIN || gamma.red > GAMMA_MAX ||

+	gamma.green < GAMMA_MIN || gamma.green > GAMMA_MAX ||

+	gamma.blue < GAMMA_MIN || gamma.blue > GAMMA_MAX)

+	return BadValue;

+

+    pScrn->gamma.red = gamma.red;

+    pScrn->gamma.green = gamma.green;

+    pScrn->gamma.blue = gamma.blue;

+

+    ComputeGamma(pScreenPriv);

+

+    /* mark all colormaps on this screen */

+    pLink = pScreenPriv->maps;

+    while(pLink) {

+    	pColPriv = (CMapColormapPtr)dixLookupPrivate(&pLink->cmap->devPrivates,

+						     CMapColormapKey);

+	pColPriv->recalculate = TRUE;

+	pLink = pLink->next;

+    }

+

+    if(miInstalledMaps[pScreen->myNum] && 

+       ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||

+	pScrn->vtSema || pScreenPriv->isDGAmode)) {

+	ColormapPtr pMap = miInstalledMaps[pScreen->myNum];

+

+	if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&

+	    (pMap->pVisual->class == TrueColor) &&

+	    CMapColormapUseMax(pMap->pVisual, pScreenPriv)) {

+

+	    /* if the current map doesn't have a palette look

+		for another map to change the gamma on. */

+

+	    pLink = pScreenPriv->maps;

+	    while(pLink) {

+		if(pLink->cmap->pVisual->class == PseudoColor)

+		    break;

+		pLink = pLink->next;

+	    }

+

+	    if(pLink) {

+		/* need to trick CMapRefreshColors() into thinking 

+		   this is the currently installed map */

+		miInstalledMaps[pScreen->myNum] = pLink->cmap;

+		CMapReinstallMap(pLink->cmap);

+		miInstalledMaps[pScreen->myNum] = pMap;

+	    }

+	} else

+	    CMapReinstallMap(pMap);

+    }

+

+    pScrn->ChangeGamma = pScreenPriv->ChangeGamma;

+    if (pScrn->ChangeGamma)

+	ret = pScrn->ChangeGamma(index, gamma);

+    pScrn->ChangeGamma = CMapChangeGamma;

+

+    return ret;

+}

+

+

+static void

+ComputeGammaRamp (

+    CMapScreenPtr priv,

+    unsigned short *red,

+    unsigned short *green,

+    unsigned short *blue

+){

+    int elements = priv->gammaElements;

+    LOCO *entry = priv->gamma;

+    int shift = 16 - priv->sigRGBbits;

+

+    while(elements--) {

+	entry->red = *(red++) >> shift;

+	entry->green = *(green++) >> shift;

+	entry->blue = *(blue++) >> shift;

+	entry++;

+    }

+}

+

+int

+xf86ChangeGammaRamp(

+   ScreenPtr pScreen,

+   int size,

+   unsigned short *red, 

+   unsigned short *green,

+   unsigned short *blue

+){

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    CMapColormapPtr pColPriv;

+    CMapScreenPtr pScreenPriv;

+    CMapLinkPtr pLink;

+

+    if (xf86_crtc_supports_gamma(pScrn)) {

+	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);

+	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;

+

+	if (crtc) {

+	    if (crtc->gammaSize != size)

+		return BadValue;

+

+	    RRCrtcGammaSet(crtc, red, green, blue);

+

+	    return Success;

+	}

+    }

+

+    if(CMapScreenKey == NULL)

+        return BadImplementation;

+

+    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  CMapScreenKey);

+    if(!pScreenPriv)

+        return BadImplementation;

+

+    if(pScreenPriv->gammaElements != size)

+	return BadValue;

+

+    ComputeGammaRamp(pScreenPriv, red, green, blue);

+

+    /* mark all colormaps on this screen */

+    pLink = pScreenPriv->maps;

+    while(pLink) {

+    	pColPriv = (CMapColormapPtr)dixLookupPrivate(&pLink->cmap->devPrivates,

+						     CMapColormapKey);

+        pColPriv->recalculate = TRUE;

+        pLink = pLink->next;

+    }

+

+    if(miInstalledMaps[pScreen->myNum] &&

+       ((pScreenPriv->flags & CMAP_LOAD_EVEN_IF_OFFSCREEN) ||

+        pScrn->vtSema || pScreenPriv->isDGAmode)) {

+        ColormapPtr pMap = miInstalledMaps[pScreen->myNum];

+

+        if (!(pScreenPriv->flags & CMAP_PALETTED_TRUECOLOR) &&

+            (pMap->pVisual->class == TrueColor) &&

+	    CMapColormapUseMax(pMap->pVisual, pScreenPriv)) {

+

+            /* if the current map doesn't have a palette look

+                for another map to change the gamma on. */

+

+            pLink = pScreenPriv->maps;

+            while(pLink) {

+                if(pLink->cmap->pVisual->class == PseudoColor)

+                    break;

+                pLink = pLink->next;

+            }

+

+            if(pLink) {

+                /* need to trick CMapRefreshColors() into thinking

+                   this is the currently installed map */

+                miInstalledMaps[pScreen->myNum] = pLink->cmap;

+                CMapReinstallMap(pLink->cmap);

+                miInstalledMaps[pScreen->myNum] = pMap;

+            }

+        } else

+            CMapReinstallMap(pMap);

+    }

+

+    return Success;

+}

+

+int

+xf86GetGammaRampSize(ScreenPtr pScreen)

+{

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    CMapScreenPtr pScreenPriv;

+

+    if (xf86_crtc_supports_gamma(pScrn)) {

+	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);

+	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;

+

+	if (crtc)

+	    return crtc->gammaSize;

+    }

+

+    if(CMapScreenKey == NULL) return 0;

+

+    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  CMapScreenKey);

+    if(!pScreenPriv) return 0;

+

+    return pScreenPriv->gammaElements;

+}

+

+int

+xf86GetGammaRamp(

+   ScreenPtr pScreen,

+   int size,

+   unsigned short *red,

+   unsigned short *green,

+   unsigned short *blue

+){

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+    CMapScreenPtr pScreenPriv;

+    LOCO *entry;

+    int shift, sigbits;

+

+    if (xf86_crtc_supports_gamma(pScrn)) {

+	xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);

+	RRCrtcPtr crtc = config->output[config->compat_output]->crtc->randr_crtc;

+

+	if (crtc) {

+	    if (crtc->gammaSize < size)

+		return BadValue;

+

+	    if (!RRCrtcGammaGet(crtc))

+		return BadImplementation;

+

+	    memcpy(red, crtc->gammaRed, size * sizeof(*red));

+	    memcpy(green, crtc->gammaGreen, size * sizeof(*green));

+	    memcpy(blue, crtc->gammaBlue, size * sizeof(*blue));

+

+	    return Success;

+	}

+    }

+

+    if(CMapScreenKey == NULL) 

+	return BadImplementation;

+

+    pScreenPriv = (CMapScreenPtr)dixLookupPrivate(&pScreen->devPrivates,

+						  CMapScreenKey);

+    if(!pScreenPriv) 

+	return BadImplementation;

+

+    if(size > pScreenPriv->gammaElements)

+	return BadValue;

+

+    entry = pScreenPriv->gamma;

+    sigbits = pScreenPriv->sigRGBbits;

+

+    while(size--) {

+	*red = entry->red << (16 - sigbits);

+	*green = entry->green << (16 - sigbits);

+	*blue = entry->blue << (16 - sigbits);

+	shift = sigbits;

+	while(shift < 16) {

+	    *red |= *red >> shift;

+	    *green |= *green >> shift;

+	    *blue |= *blue >> shift;

+	    shift += sigbits;

+	}

+	red++; green++; blue++;

+        entry++;

+    }

+

+    return Success;

+}

+

+int

+xf86ChangeGamma(

+   ScreenPtr pScreen,

+   Gamma gamma

+){

+    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];

+

+    if(pScrn->ChangeGamma)

+	return (*pScrn->ChangeGamma)(pScreen->myNum, gamma);

+

+    return BadImplementation;

+}