massive reduction of unneeded files

1 files changed, 0 insertions, 1123 deletions

diff --git a/nx-X11/programs/Xserver/hw/xfree86/common/xf86cmap.c b/nx-X11/programs/Xserver/hw/xfree86/common/xf86cmap.c
deleted file mode 100644
index b77e9fb47..000000000
--- a/nx-X11/programs/Xserver/hw/xfree86/common/xf86cmap.c
+++ /dev/null
@@ -1,1123 +0,0 @@
-/* $XdotOrg: xc/programs/Xserver/hw/xfree86/common/xf86cmap.c,v 1.9 2005/09/05 07:43:51 daniels Exp $ */
-/* $XFree86: xc/programs/Xserver/hw/xfree86/common/xf86cmap.c,v 1.25 2003/10/17 20:02:12 alanh Exp $ */
-/*
- * 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(__QNXNTO__) \
-	|| (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"
-
-#ifdef XFreeXDGA
-#define _XF86DGA_SERVER_
-#include <X11/extensions/xf86dgastr.h>
-#include "dgaproc.h"
-#endif
-
-#include "xf86cmap.h"
-
-#define SCREEN_PROLOGUE(pScreen, field) ((pScreen)->field = \
-   ((CMapScreenPtr) (pScreen)->devPrivates[CMapScreenIndex].ptr)->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);
-  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 unsigned long CMapGeneration = 0;
-static int CMapScreenIndex = -1;
-static int CMapColormapIndex = -1;
-
-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);
-static int  CMapSetDGAMode(int, int, DGADevicePtr);
-static int  CMapChangeGamma(int, Gamma);
-
-static void ComputeGamma(CMapScreenPtr);
-static Bool CMapAllocateColormapPrivate(ColormapPtr);
-static Bool CMapInitDefMap(ColormapPtr,int);
-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(!maxColors || !sigRGBbits || !loadPalette)
-	return FALSE;
-
-    if(CMapGeneration != serverGeneration) {
-	if(((CMapScreenIndex = AllocateScreenPrivateIndex()) < 0) ||
-	   ((CMapColormapIndex = AllocateColormapPrivateIndex(
-					CMapInitDefMap)) < 0))
-		return FALSE;
-	CMapGeneration = serverGeneration;
-    }
-
-    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;     
-    }
-
-    pScreen->devPrivates[CMapScreenIndex].ptr = (pointer)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;    
-
-    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 */
-
-    pDefMap = (ColormapPtr) LookupIDByType(pScreen->defColormap, RT_COLORMAP);
-    
-    if(!CMapAllocateColormapPrivate(pDefMap)) {
-        CMapUnwrapScreen(pScreen);
-	return FALSE;
-    }
-
-    /* Force the initial map to be loaded */
-    miInstalledMaps[pScreen->myNum] = NULL;
-    CMapInstallColormap(pDefMap);
-    return TRUE;
-}
-
-static Bool 
-CMapInitDefMap(ColormapPtr cmap, int index)
-{
-    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) pmap->pScreen->devPrivates[CMapScreenIndex].ptr;
-    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;
-    }	
-
-    pmap->devPrivates[CMapColormapIndex].ptr = (pointer)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)pScreen->devPrivates[CMapScreenIndex].ptr;
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-    CMapColormapPtr pColPriv = 
-	(CMapColormapPtr) cmap->devPrivates[CMapColormapIndex].ptr;
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-    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) pmap->devPrivates[CMapColormapIndex].ptr;
-	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) pScreen->devPrivates[CMapScreenIndex].ptr;
-
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-    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) pmap->pScreen->devPrivates[CMapScreenIndex].ptr;
-    CMapColormapPtr cmapPriv = 
-	(CMapColormapPtr) pmap->devPrivates[CMapColormapIndex].ptr;
-    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) pmap->pScreen->devPrivates[CMapScreenIndex].ptr;
-    CMapColormapPtr pColPriv = 
-	(CMapColormapPtr) pmap->devPrivates[CMapColormapIndex].ptr;
-    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 - 1; i++) { 
-	    index = i * 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) pmap->pScreen->devPrivates[CMapScreenIndex].ptr;
-    CMapColormapPtr pColPriv = 
-	(CMapColormapPtr) pmap->devPrivates[CMapColormapIndex].ptr;
-    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) pScreen->devPrivates[CMapScreenIndex].ptr;
-    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; 
-
-    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
-){
-    ScrnInfoPtr pScrn = xf86Screens[index];
-    ScreenPtr pScreen = pScrn->pScreen;
-    CMapColormapPtr pColPriv;
-    CMapScreenPtr pScreenPriv;
-    CMapLinkPtr pLink;
-        
-    /* Is this sufficient checking ? */
-    if(CMapScreenIndex == -1)
-	return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)pScreen->devPrivates[CMapScreenIndex].ptr;
-    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) pLink->cmap->devPrivates[CMapColormapIndex].ptr;
-	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;
-}
-
-
-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(CMapScreenIndex == -1)
-        return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)pScreen->devPrivates[CMapScreenIndex].ptr;
-    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) pLink->cmap->devPrivates[CMapColormapIndex].ptr;
-        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)
-{
-    CMapScreenPtr pScreenPriv;
-
-    if(CMapScreenIndex == -1) return 0;
-
-    pScreenPriv = (CMapScreenPtr)pScreen->devPrivates[CMapScreenIndex].ptr;
-    if(!pScreenPriv) return 0;
-
-    return pScreenPriv->gammaElements;
-}
-
-int
-xf86GetGammaRamp(
-   ScreenPtr pScreen,
-   int size,
-   unsigned short *red,
-   unsigned short *green,
-   unsigned short *blue
-){
-    CMapScreenPtr pScreenPriv;
-    LOCO *entry;
-    int shift, sigbits;
-
-    if(CMapScreenIndex == -1) 
-	return BadImplementation;
-
-    pScreenPriv = (CMapScreenPtr)pScreen->devPrivates[CMapScreenIndex].ptr;
-    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 Success; /* Success? */
-}