Synchronised line endinge with release branch

1 files changed, 681 insertions, 681 deletions

diff --git a/xorg-server/mi/micmap.c b/xorg-server/mi/micmap.c
index ca87a8f20..3746cad7f 100644
--- a/xorg-server/mi/micmap.c
+++ b/xorg-server/mi/micmap.c
@@ -1,681 +1,681 @@
-/*

- * Copyright (c) 1987, Oracle and/or its affiliates. All rights reserved.

- *

- * 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 (including the next

- * paragraph) 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.

- */

-

-/*

- * This is based on cfbcmap.c.  The functions here are useful independently

- * of cfb, which is the reason for including them here.  How "mi" these

- * are may be debatable.

- */

-

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#include <X11/X.h>

-#include <X11/Xproto.h>

-#include "scrnintstr.h"

-#include "colormapst.h"

-#include "resource.h"

-#include "globals.h"

-#include "micmap.h"

-

-DevPrivateKeyRec micmapScrPrivateKeyRec;

-

-int

-miListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)

-{

-    if (GetInstalledmiColormap(pScreen)) {

-	*pmaps = GetInstalledmiColormap(pScreen)->mid;

-	return 1;

-    }

-    return 0;

-}

-

-void

-miInstallColormap(ColormapPtr pmap)

-{

-    ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);

-

-    if(pmap != oldpmap)

-    {

-	/* Uninstall pInstalledMap. No hardware changes required, just

-	 * notify all interested parties. */

-	if(oldpmap != (ColormapPtr)None)

-	    WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);

-	/* Install pmap */

-	SetInstalledmiColormap(pmap->pScreen, pmap);

-	WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);

-

-    }

-}

-

-void

-miUninstallColormap(ColormapPtr pmap)

-{

-    ColormapPtr curpmap = GetInstalledmiColormap(pmap->pScreen);

-

-    if(pmap == curpmap)

-    {

-	if (pmap->mid != pmap->pScreen->defColormap)

-	{

-	    dixLookupResourceByType((pointer *)&curpmap,

-				    pmap->pScreen->defColormap,

-				    RT_COLORMAP, serverClient,

-				    DixUseAccess);

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

-	}

-    }

-}

-

-void

-miResolveColor(unsigned short *pred, unsigned short *pgreen,

-		unsigned short *pblue, VisualPtr pVisual)

-{

-    int shift = 16 - pVisual->bitsPerRGBValue;

-    unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;

-

-    if ((pVisual->class | DynamicClass) == GrayScale)

-    {

-	/* rescale to gray then rgb bits */

-	*pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;

-	*pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;

-    }

-    else

-    {

-	/* rescale to rgb bits */

-	*pred = ((*pred >> shift) * 65535) / lim;

-	*pgreen = ((*pgreen >> shift) * 65535) / lim;

-	*pblue = ((*pblue >> shift) * 65535) / lim;

-    }

-}

-

-Bool

-miInitializeColormap(ColormapPtr pmap)

-{

-    unsigned i;

-    VisualPtr pVisual;

-    unsigned lim, maxent, shift;

-

-    pVisual = pmap->pVisual;

-    lim = (1 << pVisual->bitsPerRGBValue) - 1;

-    shift = 16 - pVisual->bitsPerRGBValue;

-    maxent = pVisual->ColormapEntries - 1;

-    if (pVisual->class == TrueColor)

-    {

-	unsigned limr, limg, limb;

-

-	limr = pVisual->redMask >> pVisual->offsetRed;

-	for(i = 0; i <= min(limr,maxent); i++)

-	{

-	    /* rescale to [0..65535] then rgb bits */

-	    pmap->red[i].co.local.red =

-		((((i * 65535) / limr) >> shift) * 65535) / lim;

-	}

-	for(; i <= maxent; i++) pmap->red[i].co.local.red = 65535;

-	limg = pVisual->greenMask >> pVisual->offsetGreen;

-	for(i = 0; i <= min(limg,maxent); i++)

-	{

-	    /* rescale to [0..65535] then rgb bits */

-	    pmap->green[i].co.local.green =

-		((((i * 65535) / limg) >> shift) * 65535) / lim;

-	}

-	for(; i <= maxent; i++) pmap->green[i].co.local.green = 65535;

-	limb = pVisual->blueMask >> pVisual->offsetBlue;

-	for(i = 0; i <= min(limb,maxent); i++)

-	{

-	    /* rescale to [0..65535] then rgb bits */

-	    pmap->blue[i].co.local.blue =

-		((((i * 65535) / limb) >> shift) * 65535) / lim;

-	}

-	for(; i <= maxent; i++) pmap->blue[i].co.local.blue = 65535;

-    }

-    else if (pVisual->class == StaticColor)

-    {

-	unsigned limr, limg, limb;

-

-	limr = pVisual->redMask >> pVisual->offsetRed;

-	limg = pVisual->greenMask >> pVisual->offsetGreen;

-	limb = pVisual->blueMask >> pVisual->offsetBlue;

-	for(i = 0; i <= maxent; i++)

-	{

-	    /* rescale to [0..65535] then rgb bits */

-	    pmap->red[i].co.local.red =

-		((((((i & pVisual->redMask) >> pVisual->offsetRed)

-		    * 65535) / limr) >> shift) * 65535) / lim;

-	    pmap->red[i].co.local.green =

-		((((((i & pVisual->greenMask) >> pVisual->offsetGreen)

-		    * 65535) / limg) >> shift) * 65535) / lim;

-	    pmap->red[i].co.local.blue =

-		((((((i & pVisual->blueMask) >> pVisual->offsetBlue)

-		    * 65535) / limb) >> shift) * 65535) / lim;

-	}

-    }

-    else if (pVisual->class == StaticGray)

-    {

-	for(i = 0; i <= maxent; i++)

-	{

-	    /* rescale to [0..65535] then rgb bits */

-	    pmap->red[i].co.local.red = ((((i * 65535) / maxent) >> shift)

-					 * 65535) / lim;

-	    pmap->red[i].co.local.green = pmap->red[i].co.local.red;

-	    pmap->red[i].co.local.blue = pmap->red[i].co.local.red;

-	}

-    }

-    return TRUE;

-}

-

-/* When simulating DirectColor on PseudoColor hardware, multiple

-   entries of the colormap must be updated

- */

-

-#define AddElement(mask) { \

-    pixel = red | green | blue; \

-    for (i = 0; i < nresult; i++) \

-  	if (outdefs[i].pixel == pixel) \

-    	    break; \

-    if (i == nresult) \

-    { \

-   	nresult++; \

-	outdefs[i].pixel = pixel; \

-	outdefs[i].flags = 0; \

-    } \

-    outdefs[i].flags |= (mask); \

-    outdefs[i].red = pmap->red[red >> pVisual->offsetRed].co.local.red; \

-    outdefs[i].green = pmap->green[green >> pVisual->offsetGreen].co.local.green; \

-    outdefs[i].blue = pmap->blue[blue >> pVisual->offsetBlue].co.local.blue; \

-}

-

-int

-miExpandDirectColors(ColormapPtr pmap, int ndef, xColorItem *indefs,

-			xColorItem *outdefs)

-{

-    int	        red, green, blue;

-    int	        maxred, maxgreen, maxblue;

-    int	        stepred, stepgreen, stepblue;

-    VisualPtr   pVisual;

-    int         pixel;

-    int         nresult;

-    int         i;

-

-    pVisual = pmap->pVisual;

-

-    stepred = 1 << pVisual->offsetRed;

-    stepgreen = 1 << pVisual->offsetGreen;

-    stepblue = 1 << pVisual->offsetBlue;

-    maxred = pVisual->redMask;

-    maxgreen = pVisual->greenMask;

-    maxblue = pVisual->blueMask;

-    nresult = 0;

-    for (;ndef--; indefs++)

-    {

-	if (indefs->flags & DoRed)

-	{

-	    red = indefs->pixel & pVisual->redMask;

-    	    for (green = 0; green <= maxgreen; green += stepgreen)

-    	    {

-	    	for (blue = 0; blue <= maxblue; blue += stepblue)

-	    	{

-		    AddElement (DoRed)

-	    	}

-    	    }

-	}

-	if (indefs->flags & DoGreen)

-	{

-	    green = indefs->pixel & pVisual->greenMask;

-    	    for (red = 0; red <= maxred; red += stepred)

-    	    {

-	    	for (blue = 0; blue <= maxblue; blue += stepblue)

-	    	{

-		    AddElement (DoGreen)

-	    	}

-    	    }

-	}

-	if (indefs->flags & DoBlue)

-	{

-	    blue = indefs->pixel & pVisual->blueMask;

-    	    for (red = 0; red <= maxred; red += stepred)

-    	    {

-	    	for (green = 0; green <= maxgreen; green += stepgreen)

-	    	{

-		    AddElement (DoBlue)

-	    	}

-    	    }

-	}

-    }

-    return nresult;

-}

-

-Bool

-miCreateDefColormap(ScreenPtr pScreen)

-{

-/* 

- * In the following sources PC X server vendors may want to delete 

- * "_not_tog" from "#ifdef WIN32_not_tog"

- */

-#ifdef WIN32_not_tog

-    /*  

-     * these are the MS-Windows desktop colors, adjusted for X's 16-bit 

-     * color specifications.

-     */

-    static xColorItem citems[] = {

-	{   0,      0,      0,      0, 0, 0 },

-	{   1, 0x8000,      0,      0, 0, 0 },

-	{   2,      0, 0x8000,      0, 0, 0 },

-	{   3, 0x8000, 0x8000,      0, 0, 0 },

-	{   4,      0,      0, 0x8000, 0, 0 },

-	{   5, 0x8000,      0, 0x8000, 0, 0 },

-	{   6,      0, 0x8000, 0x8000, 0, 0 },

-	{   7, 0xc000, 0xc000, 0xc000, 0, 0 },

-	{   8, 0xc000, 0xdc00, 0xc000, 0, 0 },

-	{   9, 0xa600, 0xca00, 0xf000, 0, 0 },

-	{ 246, 0xff00, 0xfb00, 0xf000, 0, 0 },

-	{ 247, 0xa000, 0xa000, 0xa400, 0, 0 },

-	{ 248, 0x8000, 0x8000, 0x8000, 0, 0 },

-	{ 249, 0xff00,      0,      0, 0, 0 },

-	{ 250,      0, 0xff00,      0, 0, 0 },

-	{ 251, 0xff00, 0xff00,      0, 0, 0 },

-	{ 252,      0,      0, 0xff00, 0, 0 },

-	{ 253, 0xff00,      0, 0xff00, 0, 0 },

-	{ 254,      0, 0xff00, 0xff00, 0, 0 },

-	{ 255, 0xff00, 0xff00, 0xff00, 0, 0 }

-    };

-#define NUM_DESKTOP_COLORS sizeof citems / sizeof citems[0]

-    int i;

-#else

-    unsigned short	zero = 0, ones = 0xFFFF;

-#endif

-    Pixel wp, bp;

-    VisualPtr	pVisual;

-    ColormapPtr	cmap;

-    int alloctype;

-    

-    if (!dixRegisterPrivateKey(&micmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))

-	return FALSE;

-

-    for (pVisual = pScreen->visuals;

-	 pVisual->vid != pScreen->rootVisual;

-	 pVisual++)

-	;

-

-    if (pScreen->rootDepth == 1 || (pVisual->class & DynamicClass))

-	alloctype = AllocNone;

-    else

-	alloctype = AllocAll;

-

-    if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,

-		       alloctype, 0) != Success)

-	return FALSE;

-

-    if (pScreen->rootDepth > 1) {

-	wp = pScreen->whitePixel;

-	bp = pScreen->blackPixel;

-#ifdef WIN32_not_tog

-	for (i = 0; i < NUM_DESKTOP_COLORS; i++) {

-	    if (AllocColor (cmap,

-			    &citems[i].red, &citems[i].green, &citems[i].blue,

-			    &citems[i].pixel, 0) != Success)

-		return FALSE;

-	}

-#else

-	if ((AllocColor(cmap, &ones, &ones, &ones, &wp, 0) !=

-       	       Success) ||

-	    (AllocColor(cmap, &zero, &zero, &zero, &bp, 0) !=

-       	       Success))

-    	    return FALSE;

-	pScreen->whitePixel = wp;

-	pScreen->blackPixel = bp;

-#endif

-    }

-

-    (*pScreen->InstallColormap)(cmap);

-    return TRUE;

-}

-

-/*

- * Default true color bitmasks, should be overridden by

- * driver

- */

-

-#define _RZ(d) ((d + 2) / 3)

-#define _RS(d) 0

-#define _RM(d) ((1 << _RZ(d)) - 1)

-#define _GZ(d) ((d - _RZ(d) + 1) / 2)

-#define _GS(d) _RZ(d)

-#define _GM(d) (((1 << _GZ(d)) - 1) << _GS(d))

-#define _BZ(d) (d - _RZ(d) - _GZ(d))

-#define _BS(d) (_RZ(d) + _GZ(d))

-#define _BM(d) (((1 << _BZ(d)) - 1) << _BS(d))

-#define _CE(d) (1 << _RZ(d))

-

-typedef struct _miVisuals {

-    struct _miVisuals	*next;

-    int			depth;

-    int			bitsPerRGB;

-    int			visuals;

-    int			count;

-    int			preferredCVC;

-    Pixel		redMask, greenMask, blueMask;

-} miVisualsRec, *miVisualsPtr;

-

-static int  miVisualPriority[] = {

-    PseudoColor, GrayScale, StaticColor, TrueColor, DirectColor, StaticGray

-};

-

-#define NUM_PRIORITY	6

-

-static miVisualsPtr	miVisuals;

-

-void

-miClearVisualTypes(void)

-{

-    miVisualsPtr v;

-

-    while ((v = miVisuals)) {

-	miVisuals = v->next;

-	free(v);

-    }

-}

-

-

-Bool

-miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB, 

-			 int preferredCVC,

-			 Pixel redMask, Pixel greenMask, Pixel blueMask)

-{

-    miVisualsPtr   new, *prev, v;

-    int		    count;

-

-    new = malloc(sizeof *new);

-    if (!new)

-	return FALSE;

-    if (!redMask || !greenMask || !blueMask)

-    {

-	redMask = _RM(depth);

-	greenMask = _GM(depth);

-	blueMask = _BM(depth);

-    }

-    new->next = 0;

-    new->depth = depth;

-    new->visuals = visuals;

-    new->bitsPerRGB = bitsPerRGB;

-    new->preferredCVC = preferredCVC;

-    new->redMask = redMask;

-    new->greenMask = greenMask;

-    new->blueMask = blueMask;

-    count = (visuals >> 1) & 033333333333;

-    count = visuals - count - ((count >> 1) & 033333333333);

-    count = (((count + (count >> 3)) & 030707070707) % 077);	/* HAKMEM 169 */

-    new->count = count;

-    for (prev = &miVisuals; (v = *prev); prev = &v->next);

-    *prev = new;

-    return TRUE;

-}

-

-Bool

-miSetVisualTypes(int depth, int visuals, int bitsPerRGB, int preferredCVC)

-{

-    return miSetVisualTypesAndMasks (depth, visuals, bitsPerRGB,

-				     preferredCVC, 0, 0, 0);

-}

-

-int

-miGetDefaultVisualMask(int depth)

-{

-    if (depth > MAX_PSEUDO_DEPTH)

-	return LARGE_VISUALS;

-    else if (depth >= MIN_TRUE_DEPTH)

-	return ALL_VISUALS;

-    else if (depth == 1)

-	return StaticGrayMask;

-    else

-	return SMALL_VISUALS;

-}

-

-static Bool

-miVisualTypesSet (int depth)

-{

-    miVisualsPtr    visuals;

-

-    for (visuals = miVisuals; visuals; visuals = visuals->next)

-	if (visuals->depth == depth)

-	    return TRUE;

-    return FALSE;

-}

-

-Bool

-miSetPixmapDepths (void)

-{

-    int	d, f;

-    

-    /* Add any unlisted depths from the pixmap formats */

-    for (f = 0; f < screenInfo.numPixmapFormats; f++) 

-    {

-	d = screenInfo.formats[f].depth;

-	if (!miVisualTypesSet (d))

-	{

-	    if (!miSetVisualTypes (d, 0, 0, -1))

-		return FALSE;

-	}

-    }

-    return TRUE;

-}

-

-/*

- * Distance to least significant one bit

- */

-static int

-maskShift (Pixel p)

-{

-    int	s;

-

-    if (!p) return 0;

-    s = 0;

-    while (!(p & 1))

-    {

-	s++;

-	p >>= 1;

-    }

-    return s;

-}

-

-/*

- * Given a list of formats for a screen, create a list

- * of visuals and depths for the screen which corespond to

- * the set which can be used with this version of cfb.

- */

-

-Bool

-miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,

-		int *ndepthp, int *rootDepthp, VisualID *defaultVisp,

-		unsigned long sizes, int bitsPerRGB, int preferredVis)

-

-{

-    int		i, j = 0, k;

-    VisualPtr	visual;

-    DepthPtr	depth;

-    VisualID	*vid;

-    int		d, b;

-    int		f;

-    int		ndepth, nvisual;

-    int		nvtype;

-    int		vtype;

-    miVisualsPtr   visuals, nextVisuals;

-    int		*preferredCVCs, *prefp;

-    int		first_depth;

-

-    /* none specified, we'll guess from pixmap formats */

-    if (!miVisuals) 

-    {

-    	for (f = 0; f < screenInfo.numPixmapFormats; f++) 

-    	{

-	    d = screenInfo.formats[f].depth;

-	    b = screenInfo.formats[f].bitsPerPixel;

-	    if (sizes & (1 << (b - 1)))

-		vtype = miGetDefaultVisualMask(d);

-	    else

-		vtype = 0;

-	    if (!miSetVisualTypes (d, vtype, bitsPerRGB, -1))

-		return FALSE;

-    	}

-    }

-    nvisual = 0;

-    ndepth = 0;

-    for (visuals = miVisuals; visuals; visuals = nextVisuals) 

-    {

-	nextVisuals = visuals->next;

-	ndepth++;

-	nvisual += visuals->count;

-    }

-    depth = malloc(ndepth * sizeof (DepthRec));

-    visual = malloc(nvisual * sizeof (VisualRec));

-    preferredCVCs = malloc(ndepth * sizeof(int));

-    if (!depth || !visual || !preferredCVCs)

-    {

-	free(depth);

-	free(visual);

-	free(preferredCVCs);

-	return FALSE;

-    }

-    *depthp = depth;

-    *visualp = visual;

-    *ndepthp = ndepth;

-    *nvisualp = nvisual;

-    prefp = preferredCVCs;

-    for (visuals = miVisuals; visuals; visuals = nextVisuals) 

-    {

-	nextVisuals = visuals->next;

-	d = visuals->depth;

-	vtype = visuals->visuals;

-	nvtype = visuals->count;

-	*prefp = visuals->preferredCVC;

-	prefp++;

-	vid = NULL;

-	if (nvtype)

-	{

-	    vid = malloc(nvtype * sizeof (VisualID));

-	    if (!vid) {

-	        free(depth);

-	        free(visual);

-		free(preferredCVCs);

-		return FALSE;

-	    }

-	}

-	depth->depth = d;

-	depth->numVids = nvtype;

-	depth->vids = vid;

-	depth++;

-	for (i = 0; i < NUM_PRIORITY; i++) {

-	    if (! (vtype & (1 << miVisualPriority[i])))

-		continue;

-	    visual->class = miVisualPriority[i];

-	    visual->bitsPerRGBValue = visuals->bitsPerRGB;

-	    visual->ColormapEntries = 1 << d;

-	    visual->nplanes = d;

-	    visual->vid = *vid = FakeClientID (0);

-	    switch (visual->class) {

-	    case PseudoColor:

-	    case GrayScale:

-	    case StaticGray:

-		visual->redMask = 0;

-		visual->greenMask =  0;

-		visual->blueMask =  0;

-		visual->offsetRed  =  0;

-		visual->offsetGreen = 0;

-		visual->offsetBlue =  0;

-		break;

-	    case DirectColor:

-	    case TrueColor:

-		visual->ColormapEntries = _CE(d);

-		/* fall through */

-	    case StaticColor:

-		visual->redMask =  visuals->redMask;

-		visual->greenMask =  visuals->greenMask;

-		visual->blueMask =  visuals->blueMask;

-		visual->offsetRed  =  maskShift (visuals->redMask);

-		visual->offsetGreen = maskShift (visuals->greenMask);

-		visual->offsetBlue =  maskShift (visuals->blueMask);

-	    }

-	    vid++;

-	    visual++;

-	}

-	free(visuals);

-    }

-    miVisuals = NULL;

-    visual = *visualp;

-    depth = *depthp;

-

-    /*

-     * if we did not supplyied by a preferred visual class

-     * check if there is a preferred class in one of the depth

-     * structures - if there is, we want to start looking for the

-     * default visual/depth from that depth.

-     */

-    first_depth = 0;

-    if (preferredVis < 0 && defaultColorVisualClass < 0 ) {

-       for (i = 0; i < ndepth; i++) {

-	  if (preferredCVCs[i] >= 0) {

-	     first_depth = i;

-	     break;

-	  }

-       }

-    }

-

-    for (i = first_depth; i < ndepth; i++)

-    {

-	int prefColorVisualClass = -1;

-

-	if (defaultColorVisualClass >= 0)

-	    prefColorVisualClass = defaultColorVisualClass;

-	else if (preferredVis >= 0)

-	    prefColorVisualClass = preferredVis;

-	else if (preferredCVCs[i] >= 0)

-	    prefColorVisualClass = preferredCVCs[i];

-

-	if (*rootDepthp && *rootDepthp != depth[i].depth)

-	    continue;

-	

-	for (j = 0; j < depth[i].numVids; j++)

-	{

-	    for (k = 0; k < nvisual; k++)

-		if (visual[k].vid == depth[i].vids[j])

-		    break;

-	    if (k == nvisual)

-		continue;

-	    if (prefColorVisualClass < 0 ||

-		visual[k].class == prefColorVisualClass)

-		break;

-	}

-	if (j != depth[i].numVids)

-	    break;

-    }

-    if (i == ndepth) {

-	i = 0;

-	j = 0;

-    }

-    *rootDepthp = depth[i].depth;

-    *defaultVisp = depth[i].vids[j];

-    free(preferredCVCs);

-

-    return TRUE;

-}

+/*
+ * Copyright (c) 1987, Oracle and/or its affiliates. All rights reserved.
+ *
+ * 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 (including the next
+ * paragraph) 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.
+ */
+
+/*
+ * This is based on cfbcmap.c.  The functions here are useful independently
+ * of cfb, which is the reason for including them here.  How "mi" these
+ * are may be debatable.
+ */
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "colormapst.h"
+#include "resource.h"
+#include "globals.h"
+#include "micmap.h"
+
+DevPrivateKeyRec micmapScrPrivateKeyRec;
+
+int
+miListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
+{
+    if (GetInstalledmiColormap(pScreen)) {
+	*pmaps = GetInstalledmiColormap(pScreen)->mid;
+	return 1;
+    }
+    return 0;
+}
+
+void
+miInstallColormap(ColormapPtr pmap)
+{
+    ColormapPtr oldpmap = GetInstalledmiColormap(pmap->pScreen);
+
+    if(pmap != oldpmap)
+    {
+	/* Uninstall pInstalledMap. No hardware changes required, just
+	 * notify all interested parties. */
+	if(oldpmap != (ColormapPtr)None)
+	    WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
+	/* Install pmap */
+	SetInstalledmiColormap(pmap->pScreen, pmap);
+	WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
+
+    }
+}
+
+void
+miUninstallColormap(ColormapPtr pmap)
+{
+    ColormapPtr curpmap = GetInstalledmiColormap(pmap->pScreen);
+
+    if(pmap == curpmap)
+    {
+	if (pmap->mid != pmap->pScreen->defColormap)
+	{
+	    dixLookupResourceByType((pointer *)&curpmap,
+				    pmap->pScreen->defColormap,
+				    RT_COLORMAP, serverClient,
+				    DixUseAccess);
+	    (*pmap->pScreen->InstallColormap)(curpmap);
+	}
+    }
+}
+
+void
+miResolveColor(unsigned short *pred, unsigned short *pgreen,
+		unsigned short *pblue, VisualPtr pVisual)
+{
+    int shift = 16 - pVisual->bitsPerRGBValue;
+    unsigned lim = (1 << pVisual->bitsPerRGBValue) - 1;
+
+    if ((pVisual->class | DynamicClass) == GrayScale)
+    {
+	/* rescale to gray then rgb bits */
+	*pred = (30L * *pred + 59L * *pgreen + 11L * *pblue) / 100;
+	*pblue = *pgreen = *pred = ((*pred >> shift) * 65535) / lim;
+    }
+    else
+    {
+	/* rescale to rgb bits */
+	*pred = ((*pred >> shift) * 65535) / lim;
+	*pgreen = ((*pgreen >> shift) * 65535) / lim;
+	*pblue = ((*pblue >> shift) * 65535) / lim;
+    }
+}
+
+Bool
+miInitializeColormap(ColormapPtr pmap)
+{
+    unsigned i;
+    VisualPtr pVisual;
+    unsigned lim, maxent, shift;
+
+    pVisual = pmap->pVisual;
+    lim = (1 << pVisual->bitsPerRGBValue) - 1;
+    shift = 16 - pVisual->bitsPerRGBValue;
+    maxent = pVisual->ColormapEntries - 1;
+    if (pVisual->class == TrueColor)
+    {
+	unsigned limr, limg, limb;
+
+	limr = pVisual->redMask >> pVisual->offsetRed;
+	for(i = 0; i <= min(limr,maxent); i++)
+	{
+	    /* rescale to [0..65535] then rgb bits */
+	    pmap->red[i].co.local.red =
+		((((i * 65535) / limr) >> shift) * 65535) / lim;
+	}
+	for(; i <= maxent; i++) pmap->red[i].co.local.red = 65535;
+	limg = pVisual->greenMask >> pVisual->offsetGreen;
+	for(i = 0; i <= min(limg,maxent); i++)
+	{
+	    /* rescale to [0..65535] then rgb bits */
+	    pmap->green[i].co.local.green =
+		((((i * 65535) / limg) >> shift) * 65535) / lim;
+	}
+	for(; i <= maxent; i++) pmap->green[i].co.local.green = 65535;
+	limb = pVisual->blueMask >> pVisual->offsetBlue;
+	for(i = 0; i <= min(limb,maxent); i++)
+	{
+	    /* rescale to [0..65535] then rgb bits */
+	    pmap->blue[i].co.local.blue =
+		((((i * 65535) / limb) >> shift) * 65535) / lim;
+	}
+	for(; i <= maxent; i++) pmap->blue[i].co.local.blue = 65535;
+    }
+    else if (pVisual->class == StaticColor)
+    {
+	unsigned limr, limg, limb;
+
+	limr = pVisual->redMask >> pVisual->offsetRed;
+	limg = pVisual->greenMask >> pVisual->offsetGreen;
+	limb = pVisual->blueMask >> pVisual->offsetBlue;
+	for(i = 0; i <= maxent; i++)
+	{
+	    /* rescale to [0..65535] then rgb bits */
+	    pmap->red[i].co.local.red =
+		((((((i & pVisual->redMask) >> pVisual->offsetRed)
+		    * 65535) / limr) >> shift) * 65535) / lim;
+	    pmap->red[i].co.local.green =
+		((((((i & pVisual->greenMask) >> pVisual->offsetGreen)
+		    * 65535) / limg) >> shift) * 65535) / lim;
+	    pmap->red[i].co.local.blue =
+		((((((i & pVisual->blueMask) >> pVisual->offsetBlue)
+		    * 65535) / limb) >> shift) * 65535) / lim;
+	}
+    }
+    else if (pVisual->class == StaticGray)
+    {
+	for(i = 0; i <= maxent; i++)
+	{
+	    /* rescale to [0..65535] then rgb bits */
+	    pmap->red[i].co.local.red = ((((i * 65535) / maxent) >> shift)
+					 * 65535) / lim;
+	    pmap->red[i].co.local.green = pmap->red[i].co.local.red;
+	    pmap->red[i].co.local.blue = pmap->red[i].co.local.red;
+	}
+    }
+    return TRUE;
+}
+
+/* When simulating DirectColor on PseudoColor hardware, multiple
+   entries of the colormap must be updated
+ */
+
+#define AddElement(mask) { \
+    pixel = red | green | blue; \
+    for (i = 0; i < nresult; i++) \
+  	if (outdefs[i].pixel == pixel) \
+    	    break; \
+    if (i == nresult) \
+    { \
+   	nresult++; \
+	outdefs[i].pixel = pixel; \
+	outdefs[i].flags = 0; \
+    } \
+    outdefs[i].flags |= (mask); \
+    outdefs[i].red = pmap->red[red >> pVisual->offsetRed].co.local.red; \
+    outdefs[i].green = pmap->green[green >> pVisual->offsetGreen].co.local.green; \
+    outdefs[i].blue = pmap->blue[blue >> pVisual->offsetBlue].co.local.blue; \
+}
+
+int
+miExpandDirectColors(ColormapPtr pmap, int ndef, xColorItem *indefs,
+			xColorItem *outdefs)
+{
+    int	        red, green, blue;
+    int	        maxred, maxgreen, maxblue;
+    int	        stepred, stepgreen, stepblue;
+    VisualPtr   pVisual;
+    int         pixel;
+    int         nresult;
+    int         i;
+
+    pVisual = pmap->pVisual;
+
+    stepred = 1 << pVisual->offsetRed;
+    stepgreen = 1 << pVisual->offsetGreen;
+    stepblue = 1 << pVisual->offsetBlue;
+    maxred = pVisual->redMask;
+    maxgreen = pVisual->greenMask;
+    maxblue = pVisual->blueMask;
+    nresult = 0;
+    for (;ndef--; indefs++)
+    {
+	if (indefs->flags & DoRed)
+	{
+	    red = indefs->pixel & pVisual->redMask;
+    	    for (green = 0; green <= maxgreen; green += stepgreen)
+    	    {
+	    	for (blue = 0; blue <= maxblue; blue += stepblue)
+	    	{
+		    AddElement (DoRed)
+	    	}
+    	    }
+	}
+	if (indefs->flags & DoGreen)
+	{
+	    green = indefs->pixel & pVisual->greenMask;
+    	    for (red = 0; red <= maxred; red += stepred)
+    	    {
+	    	for (blue = 0; blue <= maxblue; blue += stepblue)
+	    	{
+		    AddElement (DoGreen)
+	    	}
+    	    }
+	}
+	if (indefs->flags & DoBlue)
+	{
+	    blue = indefs->pixel & pVisual->blueMask;
+    	    for (red = 0; red <= maxred; red += stepred)
+    	    {
+	    	for (green = 0; green <= maxgreen; green += stepgreen)
+	    	{
+		    AddElement (DoBlue)
+	    	}
+    	    }
+	}
+    }
+    return nresult;
+}
+
+Bool
+miCreateDefColormap(ScreenPtr pScreen)
+{
+/* 
+ * In the following sources PC X server vendors may want to delete 
+ * "_not_tog" from "#ifdef WIN32_not_tog"
+ */
+#ifdef WIN32_not_tog
+    /*  
+     * these are the MS-Windows desktop colors, adjusted for X's 16-bit 
+     * color specifications.
+     */
+    static xColorItem citems[] = {
+	{   0,      0,      0,      0, 0, 0 },
+	{   1, 0x8000,      0,      0, 0, 0 },
+	{   2,      0, 0x8000,      0, 0, 0 },
+	{   3, 0x8000, 0x8000,      0, 0, 0 },
+	{   4,      0,      0, 0x8000, 0, 0 },
+	{   5, 0x8000,      0, 0x8000, 0, 0 },
+	{   6,      0, 0x8000, 0x8000, 0, 0 },
+	{   7, 0xc000, 0xc000, 0xc000, 0, 0 },
+	{   8, 0xc000, 0xdc00, 0xc000, 0, 0 },
+	{   9, 0xa600, 0xca00, 0xf000, 0, 0 },
+	{ 246, 0xff00, 0xfb00, 0xf000, 0, 0 },
+	{ 247, 0xa000, 0xa000, 0xa400, 0, 0 },
+	{ 248, 0x8000, 0x8000, 0x8000, 0, 0 },
+	{ 249, 0xff00,      0,      0, 0, 0 },
+	{ 250,      0, 0xff00,      0, 0, 0 },
+	{ 251, 0xff00, 0xff00,      0, 0, 0 },
+	{ 252,      0,      0, 0xff00, 0, 0 },
+	{ 253, 0xff00,      0, 0xff00, 0, 0 },
+	{ 254,      0, 0xff00, 0xff00, 0, 0 },
+	{ 255, 0xff00, 0xff00, 0xff00, 0, 0 }
+    };
+#define NUM_DESKTOP_COLORS sizeof citems / sizeof citems[0]
+    int i;
+#else
+    unsigned short	zero = 0, ones = 0xFFFF;
+#endif
+    Pixel wp, bp;
+    VisualPtr	pVisual;
+    ColormapPtr	cmap;
+    int alloctype;
+    
+    if (!dixRegisterPrivateKey(&micmapScrPrivateKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    for (pVisual = pScreen->visuals;
+	 pVisual->vid != pScreen->rootVisual;
+	 pVisual++)
+	;
+
+    if (pScreen->rootDepth == 1 || (pVisual->class & DynamicClass))
+	alloctype = AllocNone;
+    else
+	alloctype = AllocAll;
+
+    if (CreateColormap(pScreen->defColormap, pScreen, pVisual, &cmap,
+		       alloctype, 0) != Success)
+	return FALSE;
+
+    if (pScreen->rootDepth > 1) {
+	wp = pScreen->whitePixel;
+	bp = pScreen->blackPixel;
+#ifdef WIN32_not_tog
+	for (i = 0; i < NUM_DESKTOP_COLORS; i++) {
+	    if (AllocColor (cmap,
+			    &citems[i].red, &citems[i].green, &citems[i].blue,
+			    &citems[i].pixel, 0) != Success)
+		return FALSE;
+	}
+#else
+	if ((AllocColor(cmap, &ones, &ones, &ones, &wp, 0) !=
+       	       Success) ||
+	    (AllocColor(cmap, &zero, &zero, &zero, &bp, 0) !=
+       	       Success))
+    	    return FALSE;
+	pScreen->whitePixel = wp;
+	pScreen->blackPixel = bp;
+#endif
+    }
+
+    (*pScreen->InstallColormap)(cmap);
+    return TRUE;
+}
+
+/*
+ * Default true color bitmasks, should be overridden by
+ * driver
+ */
+
+#define _RZ(d) ((d + 2) / 3)
+#define _RS(d) 0
+#define _RM(d) ((1 << _RZ(d)) - 1)
+#define _GZ(d) ((d - _RZ(d) + 1) / 2)
+#define _GS(d) _RZ(d)
+#define _GM(d) (((1 << _GZ(d)) - 1) << _GS(d))
+#define _BZ(d) (d - _RZ(d) - _GZ(d))
+#define _BS(d) (_RZ(d) + _GZ(d))
+#define _BM(d) (((1 << _BZ(d)) - 1) << _BS(d))
+#define _CE(d) (1 << _RZ(d))
+
+typedef struct _miVisuals {
+    struct _miVisuals	*next;
+    int			depth;
+    int			bitsPerRGB;
+    int			visuals;
+    int			count;
+    int			preferredCVC;
+    Pixel		redMask, greenMask, blueMask;
+} miVisualsRec, *miVisualsPtr;
+
+static int  miVisualPriority[] = {
+    PseudoColor, GrayScale, StaticColor, TrueColor, DirectColor, StaticGray
+};
+
+#define NUM_PRIORITY	6
+
+static miVisualsPtr	miVisuals;
+
+void
+miClearVisualTypes(void)
+{
+    miVisualsPtr v;
+
+    while ((v = miVisuals)) {
+	miVisuals = v->next;
+	free(v);
+    }
+}
+
+
+Bool
+miSetVisualTypesAndMasks(int depth, int visuals, int bitsPerRGB, 
+			 int preferredCVC,
+			 Pixel redMask, Pixel greenMask, Pixel blueMask)
+{
+    miVisualsPtr   new, *prev, v;
+    int		    count;
+
+    new = malloc(sizeof *new);
+    if (!new)
+	return FALSE;
+    if (!redMask || !greenMask || !blueMask)
+    {
+	redMask = _RM(depth);
+	greenMask = _GM(depth);
+	blueMask = _BM(depth);
+    }
+    new->next = 0;
+    new->depth = depth;
+    new->visuals = visuals;
+    new->bitsPerRGB = bitsPerRGB;
+    new->preferredCVC = preferredCVC;
+    new->redMask = redMask;
+    new->greenMask = greenMask;
+    new->blueMask = blueMask;
+    count = (visuals >> 1) & 033333333333;
+    count = visuals - count - ((count >> 1) & 033333333333);
+    count = (((count + (count >> 3)) & 030707070707) % 077);	/* HAKMEM 169 */
+    new->count = count;
+    for (prev = &miVisuals; (v = *prev); prev = &v->next);
+    *prev = new;
+    return TRUE;
+}
+
+Bool
+miSetVisualTypes(int depth, int visuals, int bitsPerRGB, int preferredCVC)
+{
+    return miSetVisualTypesAndMasks (depth, visuals, bitsPerRGB,
+				     preferredCVC, 0, 0, 0);
+}
+
+int
+miGetDefaultVisualMask(int depth)
+{
+    if (depth > MAX_PSEUDO_DEPTH)
+	return LARGE_VISUALS;
+    else if (depth >= MIN_TRUE_DEPTH)
+	return ALL_VISUALS;
+    else if (depth == 1)
+	return StaticGrayMask;
+    else
+	return SMALL_VISUALS;
+}
+
+static Bool
+miVisualTypesSet (int depth)
+{
+    miVisualsPtr    visuals;
+
+    for (visuals = miVisuals; visuals; visuals = visuals->next)
+	if (visuals->depth == depth)
+	    return TRUE;
+    return FALSE;
+}
+
+Bool
+miSetPixmapDepths (void)
+{
+    int	d, f;
+    
+    /* Add any unlisted depths from the pixmap formats */
+    for (f = 0; f < screenInfo.numPixmapFormats; f++) 
+    {
+	d = screenInfo.formats[f].depth;
+	if (!miVisualTypesSet (d))
+	{
+	    if (!miSetVisualTypes (d, 0, 0, -1))
+		return FALSE;
+	}
+    }
+    return TRUE;
+}
+
+/*
+ * Distance to least significant one bit
+ */
+static int
+maskShift (Pixel p)
+{
+    int	s;
+
+    if (!p) return 0;
+    s = 0;
+    while (!(p & 1))
+    {
+	s++;
+	p >>= 1;
+    }
+    return s;
+}
+
+/*
+ * Given a list of formats for a screen, create a list
+ * of visuals and depths for the screen which corespond to
+ * the set which can be used with this version of cfb.
+ */
+
+Bool
+miInitVisuals(VisualPtr *visualp, DepthPtr *depthp, int *nvisualp,
+		int *ndepthp, int *rootDepthp, VisualID *defaultVisp,
+		unsigned long sizes, int bitsPerRGB, int preferredVis)
+
+{
+    int		i, j = 0, k;
+    VisualPtr	visual;
+    DepthPtr	depth;
+    VisualID	*vid;
+    int		d, b;
+    int		f;
+    int		ndepth, nvisual;
+    int		nvtype;
+    int		vtype;
+    miVisualsPtr   visuals, nextVisuals;
+    int		*preferredCVCs, *prefp;
+    int		first_depth;
+
+    /* none specified, we'll guess from pixmap formats */
+    if (!miVisuals) 
+    {
+    	for (f = 0; f < screenInfo.numPixmapFormats; f++) 
+    	{
+	    d = screenInfo.formats[f].depth;
+	    b = screenInfo.formats[f].bitsPerPixel;
+	    if (sizes & (1 << (b - 1)))
+		vtype = miGetDefaultVisualMask(d);
+	    else
+		vtype = 0;
+	    if (!miSetVisualTypes (d, vtype, bitsPerRGB, -1))
+		return FALSE;
+    	}
+    }
+    nvisual = 0;
+    ndepth = 0;
+    for (visuals = miVisuals; visuals; visuals = nextVisuals) 
+    {
+	nextVisuals = visuals->next;
+	ndepth++;
+	nvisual += visuals->count;
+    }
+    depth = malloc(ndepth * sizeof (DepthRec));
+    visual = malloc(nvisual * sizeof (VisualRec));
+    preferredCVCs = malloc(ndepth * sizeof(int));
+    if (!depth || !visual || !preferredCVCs)
+    {
+	free(depth);
+	free(visual);
+	free(preferredCVCs);
+	return FALSE;
+    }
+    *depthp = depth;
+    *visualp = visual;
+    *ndepthp = ndepth;
+    *nvisualp = nvisual;
+    prefp = preferredCVCs;
+    for (visuals = miVisuals; visuals; visuals = nextVisuals) 
+    {
+	nextVisuals = visuals->next;
+	d = visuals->depth;
+	vtype = visuals->visuals;
+	nvtype = visuals->count;
+	*prefp = visuals->preferredCVC;
+	prefp++;
+	vid = NULL;
+	if (nvtype)
+	{
+	    vid = malloc(nvtype * sizeof (VisualID));
+	    if (!vid) {
+	        free(depth);
+	        free(visual);
+		free(preferredCVCs);
+		return FALSE;
+	    }
+	}
+	depth->depth = d;
+	depth->numVids = nvtype;
+	depth->vids = vid;
+	depth++;
+	for (i = 0; i < NUM_PRIORITY; i++) {
+	    if (! (vtype & (1 << miVisualPriority[i])))
+		continue;
+	    visual->class = miVisualPriority[i];
+	    visual->bitsPerRGBValue = visuals->bitsPerRGB;
+	    visual->ColormapEntries = 1 << d;
+	    visual->nplanes = d;
+	    visual->vid = *vid = FakeClientID (0);
+	    switch (visual->class) {
+	    case PseudoColor:
+	    case GrayScale:
+	    case StaticGray:
+		visual->redMask = 0;
+		visual->greenMask =  0;
+		visual->blueMask =  0;
+		visual->offsetRed  =  0;
+		visual->offsetGreen = 0;
+		visual->offsetBlue =  0;
+		break;
+	    case DirectColor:
+	    case TrueColor:
+		visual->ColormapEntries = _CE(d);
+		/* fall through */
+	    case StaticColor:
+		visual->redMask =  visuals->redMask;
+		visual->greenMask =  visuals->greenMask;
+		visual->blueMask =  visuals->blueMask;
+		visual->offsetRed  =  maskShift (visuals->redMask);
+		visual->offsetGreen = maskShift (visuals->greenMask);
+		visual->offsetBlue =  maskShift (visuals->blueMask);
+	    }
+	    vid++;
+	    visual++;
+	}
+	free(visuals);
+    }
+    miVisuals = NULL;
+    visual = *visualp;
+    depth = *depthp;
+
+    /*
+     * if we did not supplyied by a preferred visual class
+     * check if there is a preferred class in one of the depth
+     * structures - if there is, we want to start looking for the
+     * default visual/depth from that depth.
+     */
+    first_depth = 0;
+    if (preferredVis < 0 && defaultColorVisualClass < 0 ) {
+       for (i = 0; i < ndepth; i++) {
+	  if (preferredCVCs[i] >= 0) {
+	     first_depth = i;
+	     break;
+	  }
+       }
+    }
+
+    for (i = first_depth; i < ndepth; i++)
+    {
+	int prefColorVisualClass = -1;
+
+	if (defaultColorVisualClass >= 0)
+	    prefColorVisualClass = defaultColorVisualClass;
+	else if (preferredVis >= 0)
+	    prefColorVisualClass = preferredVis;
+	else if (preferredCVCs[i] >= 0)
+	    prefColorVisualClass = preferredCVCs[i];
+
+	if (*rootDepthp && *rootDepthp != depth[i].depth)
+	    continue;
+	
+	for (j = 0; j < depth[i].numVids; j++)
+	{
+	    for (k = 0; k < nvisual; k++)
+		if (visual[k].vid == depth[i].vids[j])
+		    break;
+	    if (k == nvisual)
+		continue;
+	    if (prefColorVisualClass < 0 ||
+		visual[k].class == prefColorVisualClass)
+		break;
+	}
+	if (j != depth[i].numVids)
+	    break;
+    }
+    if (i == ndepth) {
+	i = 0;
+	j = 0;
+    }
+    *rootDepthp = depth[i].depth;
+    *defaultVisp = depth[i].vids[j];
+    free(preferredCVCs);
+
+    return TRUE;
+}