xserver xkeyboard-config mesa git update 28 Apr 2011

1 files changed, 1780 insertions, 1838 deletions

diff --git a/xorg-server/render/picture.c b/xorg-server/render/picture.c
index ee0f8dee5..5640c4d96 100644
--- a/xorg-server/render/picture.c
+++ b/xorg-server/render/picture.c
@@ -1,1838 +1,1780 @@
-/*

- *

- * Copyright © 2000 SuSE, Inc.

- *

- * 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 SuSE not be used in advertising or

- * publicity pertaining to distribution of the software without specific,

- * written prior permission.  SuSE makes no representations about the

- * suitability of this software for any purpose.  It is provided "as is"

- * without express or implied warranty.

- *

- * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL

- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE

- * 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.

- *

- * Author:  Keith Packard, SuSE, Inc.

- */

-

-#ifdef HAVE_DIX_CONFIG_H

-#include <dix-config.h>

-#endif

-

-#include "misc.h"

-#include "scrnintstr.h"

-#include "os.h"

-#include "regionstr.h"

-#include "validate.h"

-#include "windowstr.h"

-#include "input.h"

-#include "resource.h"

-#include "colormapst.h"

-#include "cursorstr.h"

-#include "dixstruct.h"

-#include "gcstruct.h"

-#include "servermd.h"

-#include "picturestr.h"

-#include "xace.h"

-

-DevPrivateKeyRec PictureScreenPrivateKeyRec;

-DevPrivateKeyRec PictureWindowPrivateKeyRec;

-static int	PictureGeneration;

-RESTYPE		PictureType;

-RESTYPE		PictFormatType;

-RESTYPE		GlyphSetType;

-int		PictureCmapPolicy = PictureCmapPolicyDefault;

-

-Bool

-PictureDestroyWindow (WindowPtr pWindow)

-{

-    ScreenPtr		pScreen = pWindow->drawable.pScreen;

-    PicturePtr		pPicture;

-    PictureScreenPtr    ps = GetPictureScreen(pScreen);

-    Bool		ret;

-

-    while ((pPicture = GetPictureWindow(pWindow)))

-    {

-	SetPictureWindow(pWindow, pPicture->pNext);

-	if (pPicture->id)

-	    FreeResource (pPicture->id, PictureType);

-	FreePicture ((pointer) pPicture, pPicture->id);

-    }

-    pScreen->DestroyWindow = ps->DestroyWindow;

-    ret = (*pScreen->DestroyWindow) (pWindow);

-    ps->DestroyWindow = pScreen->DestroyWindow;

-    pScreen->DestroyWindow = PictureDestroyWindow;

-    return ret;

-}

-

-Bool

-PictureCloseScreen (int index, ScreenPtr pScreen)

-{

-    PictureScreenPtr    ps = GetPictureScreen(pScreen);

-    Bool                ret;

-    int			n;

-

-    pScreen->CloseScreen = ps->CloseScreen;

-    ret = (*pScreen->CloseScreen) (index, pScreen);

-    PictureResetFilters (pScreen);

-    for (n = 0; n < ps->nformats; n++)

-	if (ps->formats[n].type == PictTypeIndexed)

-	    (*ps->CloseIndexed) (pScreen, &ps->formats[n]);

-    GlyphUninit (pScreen);

-    SetPictureScreen(pScreen, 0);

-    free(ps->formats);

-    free(ps);

-    return ret;

-}

-

-void

-PictureStoreColors (ColormapPtr pColormap, int ndef, xColorItem *pdef)

-{

-    ScreenPtr		pScreen = pColormap->pScreen;

-    PictureScreenPtr    ps = GetPictureScreen(pScreen);

-

-    pScreen->StoreColors = ps->StoreColors;

-    (*pScreen->StoreColors) (pColormap, ndef, pdef);

-    ps->StoreColors = pScreen->StoreColors;

-    pScreen->StoreColors = PictureStoreColors;

-

-    if (pColormap->class == PseudoColor || pColormap->class == GrayScale)

-    {

-	PictFormatPtr	format = ps->formats;

-	int		nformats = ps->nformats;

-

-	while (nformats--)

-	{

-	    if (format->type == PictTypeIndexed &&

-		format->index.pColormap == pColormap)

-	    {

-		(*ps->UpdateIndexed) (pScreen, format, ndef, pdef);

-		break;

-	    }

-	    format++;

-	}

-    }

-}

-

-static int

-visualDepth (ScreenPtr pScreen, VisualPtr pVisual)

-{

-    int		d, v;

-    DepthPtr	pDepth;

-

-    for (d = 0; d < pScreen->numDepths; d++)

-    {

-	pDepth = &pScreen->allowedDepths[d];

-	for (v = 0; v < pDepth->numVids; v++)

-	    if (pDepth->vids[v] == pVisual->vid)

-		return pDepth->depth;

-    }

-    return 0;

-}

-

-typedef struct _formatInit {

-    CARD32  format;

-    CARD8   depth;

-} FormatInitRec, *FormatInitPtr;

-

-static int

-addFormat (FormatInitRec    formats[256],

-	   int		    nformat,

-	   CARD32	    format,

-	   CARD8	    depth)

-{

-    int	n;

-

-    for (n = 0; n < nformat; n++)

-	if (formats[n].format == format && formats[n].depth == depth)

-	    return nformat;

-    formats[nformat].format = format;

-    formats[nformat].depth = depth;

-    return ++nformat;

-}

-

-#define Mask(n)	((n) == 32 ? 0xffffffff : ((1 << (n))-1))

-

-PictFormatPtr

-PictureCreateDefaultFormats (ScreenPtr pScreen, int *nformatp)

-{

-    int		    nformats, f;

-    PictFormatPtr   pFormats;

-    FormatInitRec   formats[1024];

-    CARD32	    format;

-    CARD8	    depth;

-    VisualPtr	    pVisual;

-    int		    v;

-    int		    bpp;

-    int		    type;

-    int		    r, g, b;

-    int		    d;

-    DepthPtr	    pDepth;

-

-    nformats = 0;

-    /* formats required by protocol */

-    formats[nformats].format = PICT_a1;

-    formats[nformats].depth = 1;

-    nformats++;

-    formats[nformats].format = PICT_FORMAT(BitsPerPixel(8),

-					   PICT_TYPE_A,

-					   8, 0, 0, 0);

-    formats[nformats].depth = 8;

-    nformats++;

-    formats[nformats].format = PICT_FORMAT(BitsPerPixel(4),

-					   PICT_TYPE_A,

-					   4, 0, 0, 0);

-    formats[nformats].depth = 4;

-    nformats++;

-    formats[nformats].format = PICT_a8r8g8b8;

-    formats[nformats].depth = 32;

-    nformats++;

-    formats[nformats].format = PICT_x8r8g8b8;

-    formats[nformats].depth = 32;

-    nformats++;

-    formats[nformats].format = PICT_b8g8r8a8;

-    formats[nformats].depth = 32;

-    nformats++;

-    formats[nformats].format = PICT_b8g8r8x8;

-    formats[nformats].depth = 32;

-    nformats++;

-

-    /* now look through the depths and visuals adding other formats */

-    for (v = 0; v < pScreen->numVisuals; v++)

-    {

-	pVisual = &pScreen->visuals[v];

-	depth = visualDepth (pScreen, pVisual);

-	if (!depth)

-	    continue;

-    	bpp = BitsPerPixel (depth);

-	switch (pVisual->class) {

-	case DirectColor:

-	case TrueColor:

-	    r = Ones (pVisual->redMask);

-	    g = Ones (pVisual->greenMask);

-	    b = Ones (pVisual->blueMask);

-	    type = PICT_TYPE_OTHER;

-	    /*

-	     * Current rendering code supports only three direct formats,

-	     * fields must be packed together at the bottom of the pixel

-	     */

-	    if (pVisual->offsetBlue == 0 &&

-		pVisual->offsetGreen == b &&

-		pVisual->offsetRed == b + g)

-	    {

-		type = PICT_TYPE_ARGB;

-	    }

-	    else if (pVisual->offsetRed == 0 &&

-		     pVisual->offsetGreen == r && 

-		     pVisual->offsetBlue == r + g)

-	    {

-		type = PICT_TYPE_ABGR;

-	    }

-	    else if (pVisual->offsetRed == pVisual->offsetGreen - r &&

-		     pVisual->offsetGreen == pVisual->offsetBlue - g && 

-		     pVisual->offsetBlue == bpp - b)

-	    {

-		type = PICT_TYPE_BGRA;

-	    }

-	    if (type != PICT_TYPE_OTHER)

-	    {

-		format = PICT_FORMAT(bpp, type, 0, r, g, b);

-		nformats = addFormat (formats, nformats, format, depth);

-	    }

-	    break;

-	case StaticColor:

-	case PseudoColor:

-	    format = PICT_VISFORMAT (bpp, PICT_TYPE_COLOR, v);

-	    nformats = addFormat (formats, nformats, format, depth);

-	    break;

-	case StaticGray:

-	case GrayScale:

-	    format = PICT_VISFORMAT (bpp, PICT_TYPE_GRAY, v);

-	    nformats = addFormat (formats, nformats, format, depth);

-	    break;

-	}

-    }

-    /*

-     * Walk supported depths and add useful Direct formats

-     */

-    for (d = 0; d < pScreen->numDepths; d++)

-    {

-	pDepth = &pScreen->allowedDepths[d];

-	bpp = BitsPerPixel (pDepth->depth);

-	format = 0;

-	switch (bpp) {

-	case 16:

-	    /* depth 12 formats */

-	    if (pDepth->depth >= 12)

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_x4r4g4b4, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_x4b4g4r4, pDepth->depth);

-	    }

-	    /* depth 15 formats */

-	    if (pDepth->depth >= 15)

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_x1r5g5b5, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_x1b5g5r5, pDepth->depth);

-	    }

-	    /* depth 16 formats */

-	    if (pDepth->depth >= 16) 

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_a1r5g5b5, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_a1b5g5r5, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_r5g6b5, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_b5g6r5, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_a4r4g4b4, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_a4b4g4r4, pDepth->depth);

-	    }

-	    break;

-	case 24:

-	    if (pDepth->depth >= 24)

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_r8g8b8, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_b8g8r8, pDepth->depth);

-	    }

-	    break;

-	case 32:

-	    if (pDepth->depth >= 24)

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_x8r8g8b8, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_x8b8g8r8, pDepth->depth);

-	    }

-	    if (pDepth->depth >= 30)

-	    {

-		nformats = addFormat (formats, nformats,

-				      PICT_a2r10g10b10, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_x2r10g10b10, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_a2b10g10r10, pDepth->depth);

-		nformats = addFormat (formats, nformats,

-				      PICT_x2b10g10r10, pDepth->depth);

-	    }

-	    break;

-	}

-    }

-    

-

-    pFormats = calloc(nformats, sizeof (PictFormatRec));

-    if (!pFormats)

-	return 0;

-    for (f = 0; f < nformats; f++)

-    {

-        pFormats[f].id = FakeClientID (0);

-	pFormats[f].depth = formats[f].depth;

-	format = formats[f].format;

-	pFormats[f].format = format;

-	switch (PICT_FORMAT_TYPE(format)) {

-	case PICT_TYPE_ARGB:

-	    pFormats[f].type = PictTypeDirect;

-	    

-	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));

-	    if (pFormats[f].direct.alphaMask)

-		pFormats[f].direct.alpha = (PICT_FORMAT_R(format) +

-					    PICT_FORMAT_G(format) +

-					    PICT_FORMAT_B(format));

-	    

-	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));

-	    pFormats[f].direct.red = (PICT_FORMAT_G(format) + 

-				      PICT_FORMAT_B(format));

-	    

-	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));

-	    pFormats[f].direct.green = PICT_FORMAT_B(format);

-	    

-	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));

-	    pFormats[f].direct.blue = 0;

-	    break;

-

-	case PICT_TYPE_ABGR:

-	    pFormats[f].type = PictTypeDirect;

-	    

-	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));

-	    if (pFormats[f].direct.alphaMask)

-		pFormats[f].direct.alpha = (PICT_FORMAT_B(format) +

-					    PICT_FORMAT_G(format) +

-					    PICT_FORMAT_R(format));

-	    

-	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));

-	    pFormats[f].direct.blue = (PICT_FORMAT_G(format) + 

-				       PICT_FORMAT_R(format));

-	    

-	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));

-	    pFormats[f].direct.green = PICT_FORMAT_R(format);

-	    

-	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));

-	    pFormats[f].direct.red = 0;

-	    break;

-

-	case PICT_TYPE_BGRA:

-	    pFormats[f].type = PictTypeDirect;

-	    

-	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));

-	    pFormats[f].direct.blue = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format));

-

-	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));

-	    pFormats[f].direct.green = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format) -

-					PICT_FORMAT_G(format));

-

-	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));

-	    pFormats[f].direct.red = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format) -

-				      PICT_FORMAT_G(format) - PICT_FORMAT_R(format));

-

-	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));

-	    pFormats[f].direct.alpha = 0;

-	    break;

-

-	case PICT_TYPE_A:

-	    pFormats[f].type = PictTypeDirect;

-

-	    pFormats[f].direct.alpha = 0;

-	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));

-

-	    /* remaining fields already set to zero */

-	    break;

-	    

-	case PICT_TYPE_COLOR:

-	case PICT_TYPE_GRAY:

-	    pFormats[f].type = PictTypeIndexed;

-	    pFormats[f].index.vid = pScreen->visuals[PICT_FORMAT_VIS(format)].vid;

-	    break;

-	}

-    }

-    *nformatp = nformats;

-    return pFormats;

-}

-

-static VisualPtr

-PictureFindVisual (ScreenPtr pScreen, VisualID visual)

-{

-    int         i;

-    VisualPtr   pVisual;

-    for (i = 0, pVisual = pScreen->visuals;

-         i < pScreen->numVisuals;

-         i++, pVisual++)

-    {

-        if (pVisual->vid == visual)

-            return pVisual;

-    }

-    return 0;

-}

-

-Bool

-PictureInitIndexedFormat(ScreenPtr pScreen, PictFormatPtr format)

-{

-    PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);

-

-    if (format->type != PictTypeIndexed || format->index.pColormap)

-	return TRUE;

-

-    if (format->index.vid == pScreen->rootVisual) {

-	dixLookupResourceByType((pointer *)&format->index.pColormap,

-				pScreen->defColormap, RT_COLORMAP,

-				serverClient, DixGetAttrAccess);

-    } else {

-	VisualPtr pVisual = PictureFindVisual(pScreen, format->index.vid);

-	if (CreateColormap(FakeClientID (0), pScreen, pVisual,

-		    &format->index.pColormap, AllocNone, 0)

-		!= Success)

-	    return FALSE;

-    }

-    if (!ps->InitIndexed(pScreen, format))

-	return FALSE;

-    return TRUE;

-}

-

-static Bool

-PictureInitIndexedFormats (ScreenPtr pScreen)

-{

-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

-    PictFormatPtr	format;

-    int			nformat;

-

-    if (!ps)

-	return FALSE;

-    format = ps->formats;

-    nformat = ps->nformats;

-    while (nformat--)

-	if (!PictureInitIndexedFormat(pScreen, format++))

-	    return FALSE;

-    return TRUE;

-}

-

-Bool

-PictureFinishInit (void)

-{

-    int	    s;

-

-    for (s = 0; s < screenInfo.numScreens; s++)

-    {

-	if (!PictureInitIndexedFormats (screenInfo.screens[s]))

-	    return FALSE;

-	(void) AnimCurInit (screenInfo.screens[s]);

-    }

-

-    return TRUE;

-}

-

-Bool

-PictureSetSubpixelOrder (ScreenPtr pScreen, int subpixel)

-{

-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

-

-    if (!ps)

-	return FALSE;

-    ps->subpixel = subpixel;

-    return TRUE;

-    

-}

-

-int

-PictureGetSubpixelOrder (ScreenPtr pScreen)

-{

-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

-

-    if (!ps)

-	return SubPixelUnknown;

-    return ps->subpixel;

-}

-    

-PictFormatPtr

-PictureMatchVisual (ScreenPtr pScreen, int depth, VisualPtr pVisual)

-{

-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

-    PictFormatPtr	format;

-    int			nformat;

-    int			type;

-

-    if (!ps)

-	return 0;

-    format = ps->formats;

-    nformat = ps->nformats;

-    switch (pVisual->class) {

-    case StaticGray:

-    case GrayScale:

-    case StaticColor:

-    case PseudoColor:

-	type = PictTypeIndexed;

-	break;

-    case TrueColor:

-    case DirectColor:

-	type = PictTypeDirect;

-	break;

-    default:

-	return 0;

-    }

-    while (nformat--)

-    {

-	if (format->depth == depth && format->type == type)

-	{

-	    if (type == PictTypeIndexed)

-	    {

-		if (format->index.vid == pVisual->vid)

-		    return format;

-	    }

-	    else

-	    {

-		if (format->direct.redMask << format->direct.red == 

-		    pVisual->redMask &&

-		    format->direct.greenMask << format->direct.green == 

-		    pVisual->greenMask &&

-		    format->direct.blueMask << format->direct.blue == 

-		    pVisual->blueMask)

-		{

-		    return format;

-		}

-	    }

-	}

-	format++;

-    }

-    return 0;

-}

-

-PictFormatPtr

-PictureMatchFormat (ScreenPtr pScreen, int depth, CARD32 f)

-{

-    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);

-    PictFormatPtr	format;

-    int			nformat;

-

-    if (!ps)

-	return 0;

-    format = ps->formats;

-    nformat = ps->nformats;

-    while (nformat--)

-    {

-	if (format->depth == depth && format->format == (f & 0xffffff))

-	    return format;

-	format++;

-    }

-    return 0;

-}

-

-int

-PictureParseCmapPolicy (const char *name)

-{

-    if ( strcmp (name, "default" ) == 0)

-	return PictureCmapPolicyDefault;

-    else if ( strcmp (name, "mono" ) == 0)

-	return PictureCmapPolicyMono;

-    else if ( strcmp (name, "gray" ) == 0)

-	return PictureCmapPolicyGray;

-    else if ( strcmp (name, "color" ) == 0)

-	return PictureCmapPolicyColor;

-    else if ( strcmp (name, "all" ) == 0)

-	return PictureCmapPolicyAll;

-    else

-	return PictureCmapPolicyInvalid;

-}

-

-Bool

-PictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)

-{

-    PictureScreenPtr	ps;

-    int			n;

-    CARD32		type, a, r, g, b;

-    

-    if (PictureGeneration != serverGeneration)

-    {

-	PictureType = CreateNewResourceType (FreePicture, "PICTURE");

-	if (!PictureType)

-	    return FALSE;

-	PictFormatType = CreateNewResourceType (FreePictFormat, "PICTFORMAT");

-	if (!PictFormatType)

-	    return FALSE;

-	GlyphSetType = CreateNewResourceType (FreeGlyphSet, "GLYPHSET");

-	if (!GlyphSetType)

-	    return FALSE;

-	PictureGeneration = serverGeneration;

-    }

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

-	return FALSE;

-

-    if (!dixRegisterPrivateKey(&PictureWindowPrivateKeyRec, PRIVATE_WINDOW, 0))

-	return FALSE;

-

-    if (!formats)

-    {

-	formats = PictureCreateDefaultFormats (pScreen, &nformats);

-	if (!formats)

-	    return FALSE;

-    }

-    for (n = 0; n < nformats; n++)

-    {

-	if (!AddResource (formats[n].id, PictFormatType, (pointer) (formats+n)))

-	{

-	    free(formats);

-	    return FALSE;

-	}

-	if (formats[n].type == PictTypeIndexed)

-	{

-            VisualPtr   pVisual = PictureFindVisual (pScreen, formats[n].index.vid);

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

-		type = PICT_TYPE_COLOR;

-	    else

-		type = PICT_TYPE_GRAY;

-	    a = r = g = b = 0;

-	}

-	else

-	{

-	    if ((formats[n].direct.redMask|

-		 formats[n].direct.blueMask|

-		 formats[n].direct.greenMask) == 0)

-		type = PICT_TYPE_A;

-	    else if (formats[n].direct.red > formats[n].direct.blue)

-		type = PICT_TYPE_ARGB;

-	    else if (formats[n].direct.red == 0)

-		type = PICT_TYPE_ABGR;

-	    else

-		type = PICT_TYPE_BGRA;

-	    a = Ones (formats[n].direct.alphaMask);

-	    r = Ones (formats[n].direct.redMask);

-	    g = Ones (formats[n].direct.greenMask);

-	    b = Ones (formats[n].direct.blueMask);

-	}

-	formats[n].format = PICT_FORMAT(0,type,a,r,g,b);

-    }

-    ps = (PictureScreenPtr) malloc(sizeof (PictureScreenRec));

-    if (!ps)

-    {

-	free(formats);

-	return FALSE;

-    }

-    SetPictureScreen(pScreen, ps);

-

-    ps->formats = formats;

-    ps->fallback = formats;

-    ps->nformats = nformats;

-    

-    ps->filters = 0;

-    ps->nfilters = 0;

-    ps->filterAliases = 0;

-    ps->nfilterAliases = 0;

-

-    ps->subpixel = SubPixelUnknown;

-

-    ps->CloseScreen = pScreen->CloseScreen;

-    ps->DestroyWindow = pScreen->DestroyWindow;

-    ps->StoreColors = pScreen->StoreColors;

-    pScreen->DestroyWindow = PictureDestroyWindow;

-    pScreen->CloseScreen = PictureCloseScreen;

-    pScreen->StoreColors = PictureStoreColors;

-

-    if (!PictureSetDefaultFilters (pScreen))

-    {

-	PictureResetFilters (pScreen);

-	SetPictureScreen(pScreen, 0);

-	free(formats);

-	free(ps);

-	return FALSE;

-    }

-

-    return TRUE;

-}

-

-void

-SetPictureToDefaults (PicturePtr    pPicture)

-{

-    pPicture->refcnt = 1;

-    pPicture->repeat = 0;

-    pPicture->graphicsExposures = FALSE;

-    pPicture->subWindowMode = ClipByChildren;

-    pPicture->polyEdge = PolyEdgeSharp;

-    pPicture->polyMode = PolyModePrecise;

-    pPicture->freeCompClip = FALSE;

-    pPicture->clientClipType = CT_NONE;

-    pPicture->componentAlpha = FALSE;

-    pPicture->repeatType = RepeatNone;

-

-    pPicture->alphaMap = 0;

-    pPicture->alphaOrigin.x = 0;

-    pPicture->alphaOrigin.y = 0;

-

-    pPicture->clipOrigin.x = 0;

-    pPicture->clipOrigin.y = 0;

-    pPicture->clientClip = 0;

-

-    pPicture->transform = 0;

-

-    pPicture->filter = PictureGetFilterId (FilterNearest, -1, TRUE);

-    pPicture->filter_params = 0;

-    pPicture->filter_nparams = 0;

-

-    pPicture->serialNumber = GC_CHANGE_SERIAL_BIT;

-    pPicture->stateChanges = -1;

-    pPicture->pSourcePict = 0;

-}

-

-PicturePtr

-CreatePicture (Picture		pid,

-	       DrawablePtr	pDrawable,

-	       PictFormatPtr	pFormat,

-	       Mask		vmask,

-	       XID		*vlist,

-	       ClientPtr	client,

-	       int		*error)

-{

-    PicturePtr		pPicture;

-    PictureScreenPtr	ps = GetPictureScreen(pDrawable->pScreen);

-

-    pPicture = dixAllocateObjectWithPrivates(PictureRec, PRIVATE_PICTURE);

-    if (!pPicture)

-    {

-	*error = BadAlloc;

-	return 0;

-    }

-

-    pPicture->id = pid;

-    pPicture->pDrawable = pDrawable;

-    pPicture->pFormat = pFormat;

-    pPicture->format = pFormat->format | (pDrawable->bitsPerPixel << 24);

-

-    /* security creation/labeling check */

-    *error = XaceHook(XACE_RESOURCE_ACCESS, client, pid, PictureType, pPicture,

-		      RT_PIXMAP, pDrawable, DixCreateAccess|DixSetAttrAccess);

-    if (*error != Success)

-	goto out;

-

-    if (pDrawable->type == DRAWABLE_PIXMAP)

-    {

-	++((PixmapPtr)pDrawable)->refcnt;

-	pPicture->pNext = 0;

-    }

-    else

-    {

-	pPicture->pNext = GetPictureWindow(((WindowPtr) pDrawable));

-	SetPictureWindow(((WindowPtr) pDrawable), pPicture);

-    }

-

-    SetPictureToDefaults (pPicture);

-    

-    if (vmask)

-	*error = ChangePicture (pPicture, vmask, vlist, 0, client);

-    else

-	*error = Success;

-    if (*error == Success)

-	*error = (*ps->CreatePicture) (pPicture);

-out:

-    if (*error != Success)

-    {

-	FreePicture (pPicture, (XID) 0);

-	pPicture = 0;

-    }

-    return pPicture;

-}

-

-static CARD32 xRenderColorToCard32(xRenderColor c)

-{

-    return

-        (c.alpha >> 8 << 24) |

-        (c.red >> 8 << 16) |

-        (c.green & 0xff00) |

-        (c.blue >> 8);

-}

-

-static unsigned int premultiply(unsigned int x)

-{

-    unsigned int a = x >> 24;

-    unsigned int t = (x & 0xff00ff) * a + 0x800080;

-    t = (t + ((t >> 8) & 0xff00ff)) >> 8;

-    t &= 0xff00ff;

-

-    x = ((x >> 8) & 0xff) * a + 0x80;

-    x = (x + ((x >> 8) & 0xff));

-    x &= 0xff00;

-    x |= t | (a << 24);

-    return x;

-}

-

-static unsigned int INTERPOLATE_PIXEL_256(unsigned int x, unsigned int a,

-                                          unsigned int y, unsigned int b)

-{

-    CARD32 t = (x & 0xff00ff) * a + (y & 0xff00ff) * b;

-    t >>= 8;

-    t &= 0xff00ff;

-

-    x = ((x >> 8) & 0xff00ff) * a + ((y >> 8) & 0xff00ff) * b;

-    x &= 0xff00ff00;

-    x |= t;

-    return x;

-}

-

-CARD32

-PictureGradientColor (PictGradientStopPtr stop1,

-		      PictGradientStopPtr stop2,

-		      CARD32	          x)

-{

-     CARD32 current_color, next_color;

-     int	   dist, idist;

-

-     current_color = xRenderColorToCard32 (stop1->color);

-     next_color    = xRenderColorToCard32 (stop2->color);

-

-     dist  = (int) (256 * (x - stop1->x) / (stop2->x - stop1->x));

-     idist = 256 - dist;

-

-     return premultiply (INTERPOLATE_PIXEL_256 (current_color, idist,

-					       next_color, dist));

-}

-

-static void initGradient(SourcePictPtr pGradient, int stopCount,

-                         xFixed *stopPoints, xRenderColor *stopColors, int *error)

-{

-    int i;

-    xFixed dpos;

-

-    if (stopCount <= 0) {

-        *error = BadValue;

-        return;

-    }

-

-    dpos = -1;

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

-        if (stopPoints[i] < dpos || stopPoints[i] > (1<<16)) {

-            *error = BadValue;

-            return;

-        }

-        dpos = stopPoints[i];

-    }

-

-    pGradient->gradient.stops = malloc(stopCount*sizeof(PictGradientStop));

-    if (!pGradient->gradient.stops) {

-        *error = BadAlloc;

-        return;

-    }

-

-    pGradient->gradient.nstops = stopCount;

-

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

-        pGradient->gradient.stops[i].x = stopPoints[i];

-        pGradient->gradient.stops[i].color = stopColors[i];

-    }

-

-    pGradient->gradient.class	       = SourcePictClassUnknown;

-    pGradient->gradient.stopRange      = 0xffff;

-    pGradient->gradient.colorTable     = NULL;

-    pGradient->gradient.colorTableSize = 0;

-}

-

-static PicturePtr createSourcePicture(void)

-{

-    PicturePtr pPicture;

-    pPicture = dixAllocateObjectWithPrivates(PictureRec, PRIVATE_PICTURE);

-    pPicture->pDrawable = 0;

-    pPicture->pFormat = 0;

-    pPicture->pNext = 0;

-    pPicture->format = PICT_a8r8g8b8;

-

-    SetPictureToDefaults(pPicture);

-    return pPicture;

-}

-

-PicturePtr

-CreateSolidPicture (Picture pid, xRenderColor *color, int *error)

-{

-    PicturePtr pPicture;

-    pPicture = createSourcePicture();

-    if (!pPicture) {

-        *error = BadAlloc;

-        return 0;

-    }

-

-    pPicture->id = pid;

-    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictSolidFill));

-    if (!pPicture->pSourcePict) {

-        *error = BadAlloc;

-        free(pPicture);

-        return 0;

-    }

-    pPicture->pSourcePict->type = SourcePictTypeSolidFill;

-    pPicture->pSourcePict->solidFill.color = xRenderColorToCard32(*color);

-    return pPicture;

-}

-

-PicturePtr

-CreateLinearGradientPicture (Picture pid, xPointFixed *p1, xPointFixed *p2,

-                             int nStops, xFixed *stops, xRenderColor *colors, int *error)

-{

-    PicturePtr pPicture;

-

-    if (nStops < 2) {

-        *error = BadValue;

-        return 0;

-    }

-

-    pPicture = createSourcePicture();

-    if (!pPicture) {

-        *error = BadAlloc;

-        return 0;

-    }

-

-    pPicture->id = pid;

-    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictLinearGradient));

-    if (!pPicture->pSourcePict) {

-        *error = BadAlloc;

-        free(pPicture);

-        return 0;

-    }

-

-    pPicture->pSourcePict->linear.type = SourcePictTypeLinear;

-    pPicture->pSourcePict->linear.p1 = *p1;

-    pPicture->pSourcePict->linear.p2 = *p2;

-

-    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);

-    if (*error) {

-        free(pPicture);

-        return 0;

-    }

-    return pPicture;

-}

-

-#define FixedToDouble(x) ((x)/65536.)

-

-PicturePtr

-CreateRadialGradientPicture (Picture pid, xPointFixed *inner, xPointFixed *outer,

-                             xFixed innerRadius, xFixed outerRadius,

-                             int nStops, xFixed *stops, xRenderColor *colors, int *error)

-{

-    PicturePtr pPicture;

-    PictRadialGradient *radial;

-

-    if (nStops < 2) {

-        *error = BadValue;

-        return 0;

-    }

-

-    pPicture = createSourcePicture();

-    if (!pPicture) {

-        *error = BadAlloc;

-        return 0;

-    }

-

-    pPicture->id = pid;

-    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictRadialGradient));

-    if (!pPicture->pSourcePict) {

-        *error = BadAlloc;

-        free(pPicture);

-        return 0;

-    }

-    radial = &pPicture->pSourcePict->radial;

-

-    radial->type = SourcePictTypeRadial;

-    radial->c1.x = inner->x;

-    radial->c1.y = inner->y;

-    radial->c1.radius = innerRadius;

-    radial->c2.x = outer->x;

-    radial->c2.y = outer->y;

-    radial->c2.radius = outerRadius;

-    radial->cdx = (radial->c2.x - radial->c1.x) / 65536.;

-    radial->cdy = (radial->c2.y - radial->c1.y) / 65536.;

-    radial->dr = (radial->c2.radius - radial->c1.radius) / 65536.;

-    radial->A = (  radial->cdx * radial->cdx

-		   + radial->cdy * radial->cdy

-		   - radial->dr  * radial->dr);

-    

-    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);

-    if (*error) {

-        free(pPicture);

-        return 0;

-    }

-    return pPicture;

-}

-

-PicturePtr

-CreateConicalGradientPicture (Picture pid, xPointFixed *center, xFixed angle,

-                              int nStops, xFixed *stops, xRenderColor *colors, int *error)

-{

-    PicturePtr pPicture;

-

-    if (nStops < 2) {

-        *error = BadValue;

-        return 0;

-    }

-

-    pPicture = createSourcePicture();

-    if (!pPicture) {

-        *error = BadAlloc;

-        return 0;

-    }

-

-    pPicture->id = pid;

-    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictConicalGradient));

-    if (!pPicture->pSourcePict) {

-        *error = BadAlloc;

-        free(pPicture);

-        return 0;

-    }

-

-    pPicture->pSourcePict->conical.type = SourcePictTypeConical;

-    pPicture->pSourcePict->conical.center = *center;

-    pPicture->pSourcePict->conical.angle = angle;

-

-    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);

-    if (*error) {

-        free(pPicture);

-        return 0;

-    }

-    return pPicture;

-}

-

-#define NEXT_VAL(_type) (vlist ? (_type) *vlist++ : (_type) ulist++->val)

-

-#define NEXT_PTR(_type) ((_type) ulist++->ptr)

-

-int

-ChangePicture (PicturePtr	pPicture,

-	       Mask		vmask,

-	       XID		*vlist,

-	       DevUnion		*ulist,

-	       ClientPtr	client)

-{

-    ScreenPtr pScreen = pPicture->pDrawable ? pPicture->pDrawable->pScreen : 0;

-    PictureScreenPtr ps = pScreen ? GetPictureScreen(pScreen) : 0;

-    BITS32		index2;

-    int			error = 0;

-    BITS32		maskQ;

-    

-    pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;

-    maskQ = vmask;

-    while (vmask && !error)

-    {

-	index2 = (BITS32) lowbit (vmask);

-	vmask &= ~index2;

-	pPicture->stateChanges |= index2;

-	switch (index2)

-	{

-	case CPRepeat:

-	    {

-		unsigned int	newr;

-		newr = NEXT_VAL(unsigned int);

-		if (newr <= RepeatReflect)

-		{

-		    pPicture->repeat = (newr != RepeatNone);

-		    pPicture->repeatType = newr;

-		}

-		else

-		{

-		    client->errorValue = newr;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	case CPAlphaMap:

-	    {

-		PicturePtr  pAlpha;

-		

-		if (vlist)

-		{

-		    Picture	pid = NEXT_VAL(Picture);

-

-		    if (pid == None)

-			pAlpha = 0;

-		    else

-		    {

-			error = dixLookupResourceByType((pointer *)&pAlpha, pid,

-						  PictureType, client,

-						  DixReadAccess);

-			if (error != Success)

-			{

-			    client->errorValue = pid;

-			    break;

-			}

-			if (pAlpha->pDrawable == NULL ||

-			    pAlpha->pDrawable->type != DRAWABLE_PIXMAP)

-			{

-			    client->errorValue = pid;

-			    error = BadMatch;

-			    break;

-			}

-		    }

-		}

-		else

-		    pAlpha = NEXT_PTR(PicturePtr);

-		if (!error)

-		{

-		    if (pAlpha && pAlpha->pDrawable->type == DRAWABLE_PIXMAP)

-			pAlpha->refcnt++;

-		    if (pPicture->alphaMap)

-			FreePicture ((pointer) pPicture->alphaMap, (XID) 0);

-		    pPicture->alphaMap = pAlpha;

-		}

-	    }

-	    break;

-	case CPAlphaXOrigin:

-	    pPicture->alphaOrigin.x = NEXT_VAL(INT16);

-	    break;

-	case CPAlphaYOrigin:

-	    pPicture->alphaOrigin.y = NEXT_VAL(INT16);

-	    break;

-	case CPClipXOrigin:

-	    pPicture->clipOrigin.x = NEXT_VAL(INT16);

-	    break;

-	case CPClipYOrigin:

-	    pPicture->clipOrigin.y = NEXT_VAL(INT16);

-	    break;

-	case CPClipMask:

-	    {

-		Pixmap	    pid;

-		PixmapPtr   pPixmap;

-		int	    clipType;

-                if (!pScreen)

-                    return BadDrawable;

-

-		if (vlist)

-		{

-		    pid = NEXT_VAL(Pixmap);

-		    if (pid == None)

-		    {

-			clipType = CT_NONE;

-			pPixmap = NullPixmap;

-		    }

-		    else

-		    {

-			clipType = CT_PIXMAP;

-			error = dixLookupResourceByType((pointer *)&pPixmap, pid,

-						  RT_PIXMAP, client,

-						  DixReadAccess);

-			if (error != Success)

-			{

-			    client->errorValue = pid;

-			    break;

-			}

-		    }

-		}

-		else

-		{

-		    pPixmap = NEXT_PTR(PixmapPtr);

-		    if (pPixmap)

-			clipType = CT_PIXMAP;

-		    else

-			clipType = CT_NONE;

-		}

-

-		if (pPixmap)

-		{

-		    if ((pPixmap->drawable.depth != 1) ||

-			(pPixmap->drawable.pScreen != pScreen))

-		    {

-			error = BadMatch;

-			break;

-		    }

-		    else

-		    {

-			clipType = CT_PIXMAP;

-			pPixmap->refcnt++;

-		    }

-		}

-		error = (*ps->ChangePictureClip)(pPicture, clipType,

-						 (pointer)pPixmap, 0);

-		break;

-	    }

-	case CPGraphicsExposure:

-	    {

-		unsigned int	newe;

-		newe = NEXT_VAL(unsigned int);

-		if (newe <= xTrue)

-		    pPicture->graphicsExposures = newe;

-		else

-		{

-		    client->errorValue = newe;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	case CPSubwindowMode:

-	    {

-		unsigned int	news;

-		news = NEXT_VAL(unsigned int);

-		if (news == ClipByChildren || news == IncludeInferiors)

-		    pPicture->subWindowMode = news;

-		else

-		{

-		    client->errorValue = news;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	case CPPolyEdge:

-	    {

-		unsigned int	newe;

-		newe = NEXT_VAL(unsigned int);

-		if (newe == PolyEdgeSharp || newe == PolyEdgeSmooth)

-		    pPicture->polyEdge = newe;

-		else

-		{

-		    client->errorValue = newe;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	case CPPolyMode:

-	    {

-		unsigned int	newm;

-		newm = NEXT_VAL(unsigned int);

-		if (newm == PolyModePrecise || newm == PolyModeImprecise)

-		    pPicture->polyMode = newm;

-		else

-		{

-		    client->errorValue = newm;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	case CPDither:

-	    (void) NEXT_VAL(Atom); /* unimplemented */

-	    break;

-	case CPComponentAlpha:

-	    {

-		unsigned int	newca;

-

-		newca = NEXT_VAL (unsigned int);

-		if (newca <= xTrue)

-		    pPicture->componentAlpha = newca;

-		else

-		{

-		    client->errorValue = newca;

-		    error = BadValue;

-		}

-	    }

-	    break;

-	default:

-	    client->errorValue = maskQ;

-	    error = BadValue;

-	    break;

-	}

-    }

-    if (ps)

-        (*ps->ChangePicture) (pPicture, maskQ);

-    return error;

-}

-

-int

-SetPictureClipRects (PicturePtr	pPicture,

-		     int	xOrigin,

-		     int	yOrigin,

-		     int	nRect,

-		     xRectangle	*rects)

-{

-    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;

-    PictureScreenPtr	ps = GetPictureScreen(pScreen);

-    RegionPtr		clientClip;

-    int			result;

-

-    clientClip = RegionFromRects(nRect, rects, CT_UNSORTED);

-    if (!clientClip)

-	return BadAlloc;

-    result =(*ps->ChangePictureClip) (pPicture, CT_REGION, 

-				      (pointer) clientClip, 0);

-    if (result == Success)

-    {

-	pPicture->clipOrigin.x = xOrigin;

-	pPicture->clipOrigin.y = yOrigin;

-	pPicture->stateChanges |= CPClipXOrigin|CPClipYOrigin|CPClipMask;

-	pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;

-    }

-    return result;

-}

-

-int

-SetPictureClipRegion (PicturePtr    pPicture,

-                      int           xOrigin,

-                      int           yOrigin,

-                      RegionPtr     pRegion)

-{

-    ScreenPtr           pScreen = pPicture->pDrawable->pScreen;

-    PictureScreenPtr    ps = GetPictureScreen(pScreen);

-    RegionPtr           clientClip;

-    int                 result;

-    int                 type;

-

-    if (pRegion)

-    {

-        type = CT_REGION;

-        clientClip = RegionCreate(RegionExtents(pRegion),

-                                  RegionNumRects(pRegion));

-        if (!clientClip)

-            return BadAlloc;

-        if (!RegionCopy(clientClip, pRegion))

-        {

-            RegionDestroy(clientClip);

-            return BadAlloc;

-        }

-    }

-    else

-    {

-        type = CT_NONE;

-        clientClip = 0;

-    }

-

-    result =(*ps->ChangePictureClip) (pPicture, type,

-                                      (pointer) clientClip, 0);

-    if (result == Success)

-    {

-        pPicture->clipOrigin.x = xOrigin;

-        pPicture->clipOrigin.y = yOrigin;

-        pPicture->stateChanges |= CPClipXOrigin|CPClipYOrigin|CPClipMask;

-        pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;

-    }

-    return result;

-}

-

-static Bool

-transformIsIdentity(PictTransform *t)

-{

-    return ((t->matrix[0][0] == t->matrix[1][1]) &&

-            (t->matrix[0][0] == t->matrix[2][2]) &&

-            (t->matrix[0][0] != 0) &&

-            (t->matrix[0][1] == 0) &&

-            (t->matrix[0][2] == 0) &&

-            (t->matrix[1][0] == 0) &&

-            (t->matrix[1][2] == 0) &&

-            (t->matrix[2][0] == 0) &&

-            (t->matrix[2][1] == 0));

-}

-

-int

-SetPictureTransform (PicturePtr	    pPicture,

-		     PictTransform  *transform)

-{

-    if (transform && transformIsIdentity (transform))

-	transform = 0;

-    

-    if (transform)

-    {

-	if (!pPicture->transform)

-	{

-	    pPicture->transform = (PictTransform *) malloc(sizeof (PictTransform));

-	    if (!pPicture->transform)

-		return BadAlloc;

-	}

-	*pPicture->transform = *transform;

-    }

-    else

-    {

-	free(pPicture->transform);

-	pPicture->transform = NULL;

-    }

-    pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;

-

-    if (pPicture->pDrawable != NULL) {

-	int result;

-	PictureScreenPtr ps = GetPictureScreen(pPicture->pDrawable->pScreen);

-

-	result = (*ps->ChangePictureTransform) (pPicture, transform);

-

-	return result;

-    }

-

-    return Success;

-}

-

-void

-CopyPicture (PicturePtr	pSrc,

-	     Mask	mask,

-	     PicturePtr	pDst)

-{

-    PictureScreenPtr ps = GetPictureScreen(pSrc->pDrawable->pScreen);

-    Mask origMask = mask;

-

-    pDst->serialNumber |= GC_CHANGE_SERIAL_BIT;

-    pDst->stateChanges |= mask;

-

-    while (mask) {

-	Mask bit = lowbit(mask);

-

-	switch (bit)

-	{

-	case CPRepeat:

-	    pDst->repeat = pSrc->repeat;

-	    pDst->repeatType = pSrc->repeatType;

-	    break;

-	case CPAlphaMap:

-	    if (pSrc->alphaMap && pSrc->alphaMap->pDrawable->type == DRAWABLE_PIXMAP)

-		pSrc->alphaMap->refcnt++;

-	    if (pDst->alphaMap)

-		FreePicture ((pointer) pDst->alphaMap, (XID) 0);

-	    pDst->alphaMap = pSrc->alphaMap;

-	    break;

-	case CPAlphaXOrigin:

-	    pDst->alphaOrigin.x = pSrc->alphaOrigin.x;

-	    break;

-	case CPAlphaYOrigin:

-	    pDst->alphaOrigin.y = pSrc->alphaOrigin.y;

-	    break;

-	case CPClipXOrigin:

-	    pDst->clipOrigin.x = pSrc->clipOrigin.x;

-	    break;

-	case CPClipYOrigin:

-	    pDst->clipOrigin.y = pSrc->clipOrigin.y;

-	    break;

-	case CPClipMask:

-	    switch (pSrc->clientClipType) {

-	    case CT_NONE:

-		(*ps->ChangePictureClip)(pDst, CT_NONE, NULL, 0);

-		break;

-	    case CT_REGION:

-		if (!pSrc->clientClip) {

-		    (*ps->ChangePictureClip)(pDst, CT_NONE, NULL, 0);

-		} else {

-		    RegionPtr clientClip;

-		    RegionPtr srcClientClip = (RegionPtr)pSrc->clientClip;

-

-		    clientClip = RegionCreate(

-			RegionExtents(srcClientClip),

-			RegionNumRects(srcClientClip));

-		    (*ps->ChangePictureClip)(pDst, CT_REGION, clientClip, 0);

-		}

-		break;

-	    default:

-		/* XXX: CT_PIXMAP unimplemented */

-		break;

-	    }

-	    break;

-	case CPGraphicsExposure:

-	    pDst->graphicsExposures = pSrc->graphicsExposures;

-	    break;

-	case CPPolyEdge:

-	    pDst->polyEdge = pSrc->polyEdge;

-	    break;

-	case CPPolyMode:

-	    pDst->polyMode = pSrc->polyMode;

-	    break;

-	case CPDither:

-	    break;

-	case CPComponentAlpha:

-	    pDst->componentAlpha = pSrc->componentAlpha;

-	    break;

-	}

-	mask &= ~bit;

-    }

-

-    (*ps->ChangePicture)(pDst, origMask);

-}

-

-static void

-ValidateOnePicture (PicturePtr pPicture)

-{

-    if (pPicture->pDrawable && pPicture->serialNumber != pPicture->pDrawable->serialNumber)

-    {

-	PictureScreenPtr    ps = GetPictureScreen(pPicture->pDrawable->pScreen);

-

-	(*ps->ValidatePicture) (pPicture, pPicture->stateChanges);

-	pPicture->stateChanges = 0;

-	pPicture->serialNumber = pPicture->pDrawable->serialNumber;

-    }

-}

-

-void

-ValidatePicture(PicturePtr pPicture)

-{

-    ValidateOnePicture (pPicture);

-    if (pPicture->alphaMap)

-	ValidateOnePicture (pPicture->alphaMap);

-}

-

-int

-FreePicture (pointer	value,

-	     XID	pid)

-{

-    PicturePtr	pPicture = (PicturePtr) value;

-

-    if (--pPicture->refcnt == 0)

-    {

-	free(pPicture->transform);

-

-	if (pPicture->pSourcePict)

-	{

-	    if (pPicture->pSourcePict->type != SourcePictTypeSolidFill)

-		free(pPicture->pSourcePict->linear.stops);

-

-	    free(pPicture->pSourcePict);

-	}

-

-	if (pPicture->pDrawable)

-	{

-            ScreenPtr	    pScreen = pPicture->pDrawable->pScreen;

-            PictureScreenPtr    ps = GetPictureScreen(pScreen);

-	

-            if (pPicture->alphaMap)

-                FreePicture ((pointer) pPicture->alphaMap, (XID) 0);

-            (*ps->DestroyPicture) (pPicture);

-            (*ps->DestroyPictureClip) (pPicture);

-            if (pPicture->pDrawable->type == DRAWABLE_WINDOW)

-            {

-                WindowPtr	pWindow = (WindowPtr) pPicture->pDrawable;

-                PicturePtr	*pPrev;

-

-                for (pPrev = (PicturePtr *)dixLookupPrivateAddr

-			 (&pWindow->devPrivates, PictureWindowPrivateKey);

-                     *pPrev;

-                     pPrev = &(*pPrev)->pNext)

-                {

-                    if (*pPrev == pPicture)

-                    {

-                        *pPrev = pPicture->pNext;

-                        break;

-                    }

-                }

-            }

-            else if (pPicture->pDrawable->type == DRAWABLE_PIXMAP)

-            {

-                (*pScreen->DestroyPixmap) ((PixmapPtr)pPicture->pDrawable);

-            }

-        }

-	dixFreeObjectWithPrivates(pPicture, PRIVATE_PICTURE);

-    }

-    return Success;

-}

-

-int

-FreePictFormat (pointer	pPictFormat,

-		XID     pid)

-{

-    return Success;

-}

-

-/**

- * ReduceCompositeOp is used to choose simpler ops for cases where alpha

- * channels are always one and so math on the alpha channel per pixel becomes

- * unnecessary.  It may also avoid destination reads sometimes if apps aren't

- * being careful to avoid these cases.

- */

-static CARD8

-ReduceCompositeOp (CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,

-		   INT16 xSrc, INT16 ySrc, CARD16 width, CARD16 height)

-{

-    Bool no_src_alpha, no_dst_alpha;

-

-    /* Sampling off the edge of a RepeatNone picture introduces alpha

-     * even if the picture itself doesn't have alpha. We don't try to

-     * detect every case where we don't sample off the edge, just the

-     * simplest case where there is no transform on the source

-     * picture.

-     */

-    no_src_alpha = PICT_FORMAT_COLOR(pSrc->format) &&

-                   PICT_FORMAT_A(pSrc->format) == 0 &&

-                   (pSrc->repeatType != RepeatNone ||

-		    (!pSrc->transform &&

-		     xSrc >= 0 && ySrc >= 0 &&

-		     xSrc + width <= pSrc->pDrawable->width &&

-		     ySrc + height <= pSrc->pDrawable->height)) &&

-                   pSrc->alphaMap == NULL &&

-                   pMask == NULL;

-    no_dst_alpha = PICT_FORMAT_COLOR(pDst->format) &&

-                   PICT_FORMAT_A(pDst->format) == 0 &&

-                   pDst->alphaMap == NULL;

-

-    /* TODO, maybe: Conjoint and Disjoint op reductions? */

- 

-    /* Deal with simplifications where the source alpha is always 1. */

-    if (no_src_alpha)

-    {

-	switch (op) {

-	case PictOpOver:

-	    op = PictOpSrc;

-	    break;

-	case PictOpInReverse:

-	    op = PictOpDst;

-	    break;

-	case PictOpOutReverse:

-	    op = PictOpClear;

-	    break;

-	case PictOpAtop:

-	    op = PictOpIn;

-	    break;

-	case PictOpAtopReverse:

-	    op = PictOpOverReverse;

-	    break;

-	case PictOpXor:

-	    op = PictOpOut;

-	    break;

-	default:

-	    break;

-	}

-    }

-

-    /* Deal with simplifications when the destination alpha is always 1 */

-    if (no_dst_alpha)

-    {

-	switch (op) {

-	case PictOpOverReverse:

-	    op = PictOpDst;

-	    break;

-	case PictOpIn:

-	    op = PictOpSrc;

-	    break;

-	case PictOpOut:

-	    op = PictOpClear;

-	    break;

-	case PictOpAtop:

-	    op = PictOpOver;

-	    break;

-	case PictOpXor:

-	    op = PictOpOutReverse;

-	    break;

-	default:

-	    break;

-	}

-    }

-

-    /* Reduce some con/disjoint ops to the basic names. */

-    switch (op) {

-    case PictOpDisjointClear:

-    case PictOpConjointClear:

-	op = PictOpClear;

-	break;

-    case PictOpDisjointSrc:

-    case PictOpConjointSrc:

-	op = PictOpSrc;

-	break;

-    case PictOpDisjointDst:

-    case PictOpConjointDst:

-	op = PictOpDst;

-	break;

-    default:

-	break;

-    }

-

-    return op;

-}

-

-void

-CompositePicture (CARD8		op,

-		  PicturePtr	pSrc,

-		  PicturePtr	pMask,

-		  PicturePtr	pDst,

-		  INT16		xSrc,

-		  INT16		ySrc,

-		  INT16		xMask,

-		  INT16		yMask,

-		  INT16		xDst,

-		  INT16		yDst,

-		  CARD16	width,

-		  CARD16	height)

-{

-    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);

-    

-    ValidatePicture (pSrc);

-    if (pMask)

-	ValidatePicture (pMask);

-    ValidatePicture (pDst);

-

-    op = ReduceCompositeOp (op, pSrc, pMask, pDst, xSrc, ySrc, width, height);

-    if (op == PictOpDst)

-	return;

-

-    (*ps->Composite) (op,

-		       pSrc,

-		       pMask,

-		       pDst,

-		       xSrc,

-		       ySrc,

-		       xMask,

-		       yMask,

-		       xDst,

-		       yDst,

-		       width,

-		       height);

-}

-

-void

-CompositeRects (CARD8		op,

-		PicturePtr	pDst,

-		xRenderColor	*color,

-		int		nRect,

-		xRectangle      *rects)

-{

-    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);

-    

-    ValidatePicture (pDst);

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

-}

-

-void

-CompositeTrapezoids (CARD8	    op,

-		     PicturePtr	    pSrc,

-		     PicturePtr	    pDst,

-		     PictFormatPtr  maskFormat,

-		     INT16	    xSrc,

-		     INT16	    ySrc,

-		     int	    ntrap,

-		     xTrapezoid	    *traps)

-{

-    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);

-    

-    ValidatePicture (pSrc);

-    ValidatePicture (pDst);

-    (*ps->Trapezoids) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntrap, traps);

-}

-

-void

-CompositeTriangles (CARD8	    op,

-		    PicturePtr	    pSrc,

-		    PicturePtr	    pDst,

-		    PictFormatPtr   maskFormat,

-		    INT16	    xSrc,

-		    INT16	    ySrc,

-		    int		    ntriangles,

-		    xTriangle	    *triangles)

-{

-    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);

-    

-    ValidatePicture (pSrc);

-    ValidatePicture (pDst);

-    (*ps->Triangles) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntriangles, triangles);

-}

-

-void

-CompositeTriStrip (CARD8	    op,

-		   PicturePtr	    pSrc,

-		   PicturePtr	    pDst,

-		   PictFormatPtr    maskFormat,

-		   INT16	    xSrc,

-		   INT16	    ySrc,

-		   int		    npoints,

-		   xPointFixed	    *points)

-{

-    xTriangle           *tris, *tri;

-    int                 ntri;

-    

-    if (npoints < 3)

-        return;

-    ntri = npoints - 2;

-    tris = malloc(ntri * sizeof (xTriangle));

-    if (!tris)

-        return;

-    for (tri = tris; npoints >= 3; npoints--, points++, tri++)

-    {

-        tri->p1 = points[0];

-        tri->p2 = points[1];

-        tri->p3 = points[2];

-    }

-    CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);

-    free(tris);

-}

-

-void

-CompositeTriFan (CARD8		op,

-		 PicturePtr	pSrc,

-		 PicturePtr	pDst,

-		 PictFormatPtr	maskFormat,

-		 INT16		xSrc,

-		 INT16		ySrc,

-		 int		npoints,

-		 xPointFixed	*points)

-{

-    xTriangle		*tris, *tri;

-    xPointFixed		*first;

-    int			ntri;

-    

-    if (npoints < 3)

-	return;

-    ntri = npoints - 2;

-    tris = malloc(ntri * sizeof (xTriangle));

-    if (!tris)

-	return;

-    first = points++;

-    for (tri = tris; npoints >= 3; npoints--, points++, tri++)

-    {

-	tri->p1 = *first;

-	tri->p2 = points[0];

-	tri->p3 = points[1];

-    }

-    CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);

-    free(tris);

-}

-

-void

-AddTraps (PicturePtr	pPicture,

-	  INT16		xOff,

-	  INT16		yOff,

-	  int		ntrap,

-	  xTrap		*traps)

-{

-    PictureScreenPtr	ps = GetPictureScreen(pPicture->pDrawable->pScreen);

-    

-    ValidatePicture (pPicture);

-    (*ps->AddTraps) (pPicture, xOff, yOff, ntrap, traps);

-}

-

+/*
+ *
+ * Copyright © 2000 SuSE, Inc.
+ *
+ * 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 SuSE not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  SuSE makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as is"
+ * without express or implied warranty.
+ *
+ * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE
+ * 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.
+ *
+ * Author:  Keith Packard, SuSE, Inc.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "misc.h"
+#include "scrnintstr.h"
+#include "os.h"
+#include "regionstr.h"
+#include "validate.h"
+#include "windowstr.h"
+#include "input.h"
+#include "resource.h"
+#include "colormapst.h"
+#include "cursorstr.h"
+#include "dixstruct.h"
+#include "gcstruct.h"
+#include "servermd.h"
+#include "picturestr.h"
+#include "xace.h"
+
+DevPrivateKeyRec PictureScreenPrivateKeyRec;
+DevPrivateKeyRec PictureWindowPrivateKeyRec;
+static int	PictureGeneration;
+RESTYPE		PictureType;
+RESTYPE		PictFormatType;
+RESTYPE		GlyphSetType;
+int		PictureCmapPolicy = PictureCmapPolicyDefault;
+
+Bool
+PictureDestroyWindow (WindowPtr pWindow)
+{
+    ScreenPtr		pScreen = pWindow->drawable.pScreen;
+    PicturePtr		pPicture;
+    PictureScreenPtr    ps = GetPictureScreen(pScreen);
+    Bool		ret;
+
+    while ((pPicture = GetPictureWindow(pWindow)))
+    {
+	SetPictureWindow(pWindow, pPicture->pNext);
+	if (pPicture->id)
+	    FreeResource (pPicture->id, PictureType);
+	FreePicture ((pointer) pPicture, pPicture->id);
+    }
+    pScreen->DestroyWindow = ps->DestroyWindow;
+    ret = (*pScreen->DestroyWindow) (pWindow);
+    ps->DestroyWindow = pScreen->DestroyWindow;
+    pScreen->DestroyWindow = PictureDestroyWindow;
+    return ret;
+}
+
+Bool
+PictureCloseScreen (int index, ScreenPtr pScreen)
+{
+    PictureScreenPtr    ps = GetPictureScreen(pScreen);
+    Bool                ret;
+    int			n;
+
+    pScreen->CloseScreen = ps->CloseScreen;
+    ret = (*pScreen->CloseScreen) (index, pScreen);
+    PictureResetFilters (pScreen);
+    for (n = 0; n < ps->nformats; n++)
+	if (ps->formats[n].type == PictTypeIndexed)
+	    (*ps->CloseIndexed) (pScreen, &ps->formats[n]);
+    GlyphUninit (pScreen);
+    SetPictureScreen(pScreen, 0);
+    free(ps->formats);
+    free(ps);
+    return ret;
+}
+
+void
+PictureStoreColors (ColormapPtr pColormap, int ndef, xColorItem *pdef)
+{
+    ScreenPtr		pScreen = pColormap->pScreen;
+    PictureScreenPtr    ps = GetPictureScreen(pScreen);
+
+    pScreen->StoreColors = ps->StoreColors;
+    (*pScreen->StoreColors) (pColormap, ndef, pdef);
+    ps->StoreColors = pScreen->StoreColors;
+    pScreen->StoreColors = PictureStoreColors;
+
+    if (pColormap->class == PseudoColor || pColormap->class == GrayScale)
+    {
+	PictFormatPtr	format = ps->formats;
+	int		nformats = ps->nformats;
+
+	while (nformats--)
+	{
+	    if (format->type == PictTypeIndexed &&
+		format->index.pColormap == pColormap)
+	    {
+		(*ps->UpdateIndexed) (pScreen, format, ndef, pdef);
+		break;
+	    }
+	    format++;
+	}
+    }
+}
+
+static int
+visualDepth (ScreenPtr pScreen, VisualPtr pVisual)
+{
+    int		d, v;
+    DepthPtr	pDepth;
+
+    for (d = 0; d < pScreen->numDepths; d++)
+    {
+	pDepth = &pScreen->allowedDepths[d];
+	for (v = 0; v < pDepth->numVids; v++)
+	    if (pDepth->vids[v] == pVisual->vid)
+		return pDepth->depth;
+    }
+    return 0;
+}
+
+typedef struct _formatInit {
+    CARD32  format;
+    CARD8   depth;
+} FormatInitRec, *FormatInitPtr;
+
+static int
+addFormat (FormatInitRec    formats[256],
+	   int		    nformat,
+	   CARD32	    format,
+	   CARD8	    depth)
+{
+    int	n;
+
+    for (n = 0; n < nformat; n++)
+	if (formats[n].format == format && formats[n].depth == depth)
+	    return nformat;
+    formats[nformat].format = format;
+    formats[nformat].depth = depth;
+    return ++nformat;
+}
+
+#define Mask(n) ((1 << (n)) - 1)
+
+PictFormatPtr
+PictureCreateDefaultFormats (ScreenPtr pScreen, int *nformatp)
+{
+    int		    nformats, f;
+    PictFormatPtr   pFormats;
+    FormatInitRec   formats[1024];
+    CARD32	    format;
+    CARD8	    depth;
+    VisualPtr	    pVisual;
+    int		    v;
+    int		    bpp;
+    int		    type;
+    int		    r, g, b;
+    int		    d;
+    DepthPtr	    pDepth;
+
+    nformats = 0;
+    /* formats required by protocol */
+    formats[nformats].format = PICT_a1;
+    formats[nformats].depth = 1;
+    nformats++;
+    formats[nformats].format = PICT_FORMAT(BitsPerPixel(8),
+					   PICT_TYPE_A,
+					   8, 0, 0, 0);
+    formats[nformats].depth = 8;
+    nformats++;
+    formats[nformats].format = PICT_FORMAT(BitsPerPixel(4),
+					   PICT_TYPE_A,
+					   4, 0, 0, 0);
+    formats[nformats].depth = 4;
+    nformats++;
+    formats[nformats].format = PICT_a8r8g8b8;
+    formats[nformats].depth = 32;
+    nformats++;
+    formats[nformats].format = PICT_x8r8g8b8;
+    formats[nformats].depth = 32;
+    nformats++;
+    formats[nformats].format = PICT_b8g8r8a8;
+    formats[nformats].depth = 32;
+    nformats++;
+    formats[nformats].format = PICT_b8g8r8x8;
+    formats[nformats].depth = 32;
+    nformats++;
+
+    /* now look through the depths and visuals adding other formats */
+    for (v = 0; v < pScreen->numVisuals; v++)
+    {
+	pVisual = &pScreen->visuals[v];
+	depth = visualDepth (pScreen, pVisual);
+	if (!depth)
+	    continue;
+    	bpp = BitsPerPixel (depth);
+	switch (pVisual->class) {
+	case DirectColor:
+	case TrueColor:
+	    r = Ones (pVisual->redMask);
+	    g = Ones (pVisual->greenMask);
+	    b = Ones (pVisual->blueMask);
+	    type = PICT_TYPE_OTHER;
+	    /*
+	     * Current rendering code supports only three direct formats,
+	     * fields must be packed together at the bottom of the pixel
+	     */
+	    if (pVisual->offsetBlue == 0 &&
+		pVisual->offsetGreen == b &&
+		pVisual->offsetRed == b + g)
+	    {
+		type = PICT_TYPE_ARGB;
+	    }
+	    else if (pVisual->offsetRed == 0 &&
+		     pVisual->offsetGreen == r && 
+		     pVisual->offsetBlue == r + g)
+	    {
+		type = PICT_TYPE_ABGR;
+	    }
+	    else if (pVisual->offsetRed == pVisual->offsetGreen - r &&
+		     pVisual->offsetGreen == pVisual->offsetBlue - g && 
+		     pVisual->offsetBlue == bpp - b)
+	    {
+		type = PICT_TYPE_BGRA;
+	    }
+	    if (type != PICT_TYPE_OTHER)
+	    {
+		format = PICT_FORMAT(bpp, type, 0, r, g, b);
+		nformats = addFormat (formats, nformats, format, depth);
+	    }
+	    break;
+	case StaticColor:
+	case PseudoColor:
+	    format = PICT_VISFORMAT (bpp, PICT_TYPE_COLOR, v);
+	    nformats = addFormat (formats, nformats, format, depth);
+	    break;
+	case StaticGray:
+	case GrayScale:
+	    format = PICT_VISFORMAT (bpp, PICT_TYPE_GRAY, v);
+	    nformats = addFormat (formats, nformats, format, depth);
+	    break;
+	}
+    }
+    /*
+     * Walk supported depths and add useful Direct formats
+     */
+    for (d = 0; d < pScreen->numDepths; d++)
+    {
+	pDepth = &pScreen->allowedDepths[d];
+	bpp = BitsPerPixel (pDepth->depth);
+	format = 0;
+	switch (bpp) {
+	case 16:
+	    /* depth 12 formats */
+	    if (pDepth->depth >= 12)
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_x4r4g4b4, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_x4b4g4r4, pDepth->depth);
+	    }
+	    /* depth 15 formats */
+	    if (pDepth->depth >= 15)
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_x1r5g5b5, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_x1b5g5r5, pDepth->depth);
+	    }
+	    /* depth 16 formats */
+	    if (pDepth->depth >= 16) 
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_a1r5g5b5, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_a1b5g5r5, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_r5g6b5, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_b5g6r5, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_a4r4g4b4, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_a4b4g4r4, pDepth->depth);
+	    }
+	    break;
+	case 24:
+	    if (pDepth->depth >= 24)
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_r8g8b8, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_b8g8r8, pDepth->depth);
+	    }
+	    break;
+	case 32:
+	    if (pDepth->depth >= 24)
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_x8r8g8b8, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_x8b8g8r8, pDepth->depth);
+	    }
+	    if (pDepth->depth >= 30)
+	    {
+		nformats = addFormat (formats, nformats,
+				      PICT_a2r10g10b10, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_x2r10g10b10, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_a2b10g10r10, pDepth->depth);
+		nformats = addFormat (formats, nformats,
+				      PICT_x2b10g10r10, pDepth->depth);
+	    }
+	    break;
+	}
+    }
+    
+
+    pFormats = calloc(nformats, sizeof (PictFormatRec));
+    if (!pFormats)
+	return 0;
+    for (f = 0; f < nformats; f++)
+    {
+        pFormats[f].id = FakeClientID (0);
+	pFormats[f].depth = formats[f].depth;
+	format = formats[f].format;
+	pFormats[f].format = format;
+	switch (PICT_FORMAT_TYPE(format)) {
+	case PICT_TYPE_ARGB:
+	    pFormats[f].type = PictTypeDirect;
+	    
+	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));
+	    if (pFormats[f].direct.alphaMask)
+		pFormats[f].direct.alpha = (PICT_FORMAT_R(format) +
+					    PICT_FORMAT_G(format) +
+					    PICT_FORMAT_B(format));
+	    
+	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));
+	    pFormats[f].direct.red = (PICT_FORMAT_G(format) + 
+				      PICT_FORMAT_B(format));
+	    
+	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));
+	    pFormats[f].direct.green = PICT_FORMAT_B(format);
+	    
+	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));
+	    pFormats[f].direct.blue = 0;
+	    break;
+
+	case PICT_TYPE_ABGR:
+	    pFormats[f].type = PictTypeDirect;
+	    
+	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));
+	    if (pFormats[f].direct.alphaMask)
+		pFormats[f].direct.alpha = (PICT_FORMAT_B(format) +
+					    PICT_FORMAT_G(format) +
+					    PICT_FORMAT_R(format));
+	    
+	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));
+	    pFormats[f].direct.blue = (PICT_FORMAT_G(format) + 
+				       PICT_FORMAT_R(format));
+	    
+	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));
+	    pFormats[f].direct.green = PICT_FORMAT_R(format);
+	    
+	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));
+	    pFormats[f].direct.red = 0;
+	    break;
+
+	case PICT_TYPE_BGRA:
+	    pFormats[f].type = PictTypeDirect;
+	    
+	    pFormats[f].direct.blueMask = Mask(PICT_FORMAT_B(format));
+	    pFormats[f].direct.blue = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format));
+
+	    pFormats[f].direct.greenMask = Mask(PICT_FORMAT_G(format));
+	    pFormats[f].direct.green = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format) -
+					PICT_FORMAT_G(format));
+
+	    pFormats[f].direct.redMask = Mask(PICT_FORMAT_R(format));
+	    pFormats[f].direct.red = (PICT_FORMAT_BPP(format) - PICT_FORMAT_B(format) -
+				      PICT_FORMAT_G(format) - PICT_FORMAT_R(format));
+
+	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));
+	    pFormats[f].direct.alpha = 0;
+	    break;
+
+	case PICT_TYPE_A:
+	    pFormats[f].type = PictTypeDirect;
+
+	    pFormats[f].direct.alpha = 0;
+	    pFormats[f].direct.alphaMask = Mask(PICT_FORMAT_A(format));
+
+	    /* remaining fields already set to zero */
+	    break;
+	    
+	case PICT_TYPE_COLOR:
+	case PICT_TYPE_GRAY:
+	    pFormats[f].type = PictTypeIndexed;
+	    pFormats[f].index.vid = pScreen->visuals[PICT_FORMAT_VIS(format)].vid;
+	    break;
+	}
+    }
+    *nformatp = nformats;
+    return pFormats;
+}
+
+static VisualPtr
+PictureFindVisual (ScreenPtr pScreen, VisualID visual)
+{
+    int         i;
+    VisualPtr   pVisual;
+    for (i = 0, pVisual = pScreen->visuals;
+         i < pScreen->numVisuals;
+         i++, pVisual++)
+    {
+        if (pVisual->vid == visual)
+            return pVisual;
+    }
+    return 0;
+}
+
+Bool
+PictureInitIndexedFormat(ScreenPtr pScreen, PictFormatPtr format)
+{
+    PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
+
+    if (format->type != PictTypeIndexed || format->index.pColormap)
+	return TRUE;
+
+    if (format->index.vid == pScreen->rootVisual) {
+	dixLookupResourceByType((pointer *)&format->index.pColormap,
+				pScreen->defColormap, RT_COLORMAP,
+				serverClient, DixGetAttrAccess);
+    } else {
+	VisualPtr pVisual = PictureFindVisual(pScreen, format->index.vid);
+	if (CreateColormap(FakeClientID (0), pScreen, pVisual,
+		    &format->index.pColormap, AllocNone, 0)
+		!= Success)
+	    return FALSE;
+    }
+    if (!ps->InitIndexed(pScreen, format))
+	return FALSE;
+    return TRUE;
+}
+
+static Bool
+PictureInitIndexedFormats (ScreenPtr pScreen)
+{
+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
+    PictFormatPtr	format;
+    int			nformat;
+
+    if (!ps)
+	return FALSE;
+    format = ps->formats;
+    nformat = ps->nformats;
+    while (nformat--)
+	if (!PictureInitIndexedFormat(pScreen, format++))
+	    return FALSE;
+    return TRUE;
+}
+
+Bool
+PictureFinishInit (void)
+{
+    int	    s;
+
+    for (s = 0; s < screenInfo.numScreens; s++)
+    {
+	if (!PictureInitIndexedFormats (screenInfo.screens[s]))
+	    return FALSE;
+	(void) AnimCurInit (screenInfo.screens[s]);
+    }
+
+    return TRUE;
+}
+
+Bool
+PictureSetSubpixelOrder (ScreenPtr pScreen, int subpixel)
+{
+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
+
+    if (!ps)
+	return FALSE;
+    ps->subpixel = subpixel;
+    return TRUE;
+    
+}
+
+int
+PictureGetSubpixelOrder (ScreenPtr pScreen)
+{
+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
+
+    if (!ps)
+	return SubPixelUnknown;
+    return ps->subpixel;
+}
+    
+PictFormatPtr
+PictureMatchVisual (ScreenPtr pScreen, int depth, VisualPtr pVisual)
+{
+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
+    PictFormatPtr	format;
+    int			nformat;
+    int			type;
+
+    if (!ps)
+	return 0;
+    format = ps->formats;
+    nformat = ps->nformats;
+    switch (pVisual->class) {
+    case StaticGray:
+    case GrayScale:
+    case StaticColor:
+    case PseudoColor:
+	type = PictTypeIndexed;
+	break;
+    case TrueColor:
+    case DirectColor:
+	type = PictTypeDirect;
+	break;
+    default:
+	return 0;
+    }
+    while (nformat--)
+    {
+	if (format->depth == depth && format->type == type)
+	{
+	    if (type == PictTypeIndexed)
+	    {
+		if (format->index.vid == pVisual->vid)
+		    return format;
+	    }
+	    else
+	    {
+		if (format->direct.redMask << format->direct.red == 
+		    pVisual->redMask &&
+		    format->direct.greenMask << format->direct.green == 
+		    pVisual->greenMask &&
+		    format->direct.blueMask << format->direct.blue == 
+		    pVisual->blueMask)
+		{
+		    return format;
+		}
+	    }
+	}
+	format++;
+    }
+    return 0;
+}
+
+PictFormatPtr
+PictureMatchFormat (ScreenPtr pScreen, int depth, CARD32 f)
+{
+    PictureScreenPtr    ps = GetPictureScreenIfSet(pScreen);
+    PictFormatPtr	format;
+    int			nformat;
+
+    if (!ps)
+	return 0;
+    format = ps->formats;
+    nformat = ps->nformats;
+    while (nformat--)
+    {
+	if (format->depth == depth && format->format == (f & 0xffffff))
+	    return format;
+	format++;
+    }
+    return 0;
+}
+
+int
+PictureParseCmapPolicy (const char *name)
+{
+    if ( strcmp (name, "default" ) == 0)
+	return PictureCmapPolicyDefault;
+    else if ( strcmp (name, "mono" ) == 0)
+	return PictureCmapPolicyMono;
+    else if ( strcmp (name, "gray" ) == 0)
+	return PictureCmapPolicyGray;
+    else if ( strcmp (name, "color" ) == 0)
+	return PictureCmapPolicyColor;
+    else if ( strcmp (name, "all" ) == 0)
+	return PictureCmapPolicyAll;
+    else
+	return PictureCmapPolicyInvalid;
+}
+
+Bool
+PictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
+{
+    PictureScreenPtr	ps;
+    int			n;
+    CARD32		type, a, r, g, b;
+    
+    if (PictureGeneration != serverGeneration)
+    {
+	PictureType = CreateNewResourceType (FreePicture, "PICTURE");
+	if (!PictureType)
+	    return FALSE;
+	PictFormatType = CreateNewResourceType (FreePictFormat, "PICTFORMAT");
+	if (!PictFormatType)
+	    return FALSE;
+	GlyphSetType = CreateNewResourceType (FreeGlyphSet, "GLYPHSET");
+	if (!GlyphSetType)
+	    return FALSE;
+	PictureGeneration = serverGeneration;
+    }
+    if (!dixRegisterPrivateKey(&PictureScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
+	return FALSE;
+
+    if (!dixRegisterPrivateKey(&PictureWindowPrivateKeyRec, PRIVATE_WINDOW, 0))
+	return FALSE;
+
+    if (!formats)
+    {
+	formats = PictureCreateDefaultFormats (pScreen, &nformats);
+	if (!formats)
+	    return FALSE;
+    }
+    for (n = 0; n < nformats; n++)
+    {
+	if (!AddResource (formats[n].id, PictFormatType, (pointer) (formats+n)))
+	{
+	    free(formats);
+	    return FALSE;
+	}
+	if (formats[n].type == PictTypeIndexed)
+	{
+            VisualPtr   pVisual = PictureFindVisual (pScreen, formats[n].index.vid);
+	    if ((pVisual->class | DynamicClass) == PseudoColor)
+		type = PICT_TYPE_COLOR;
+	    else
+		type = PICT_TYPE_GRAY;
+	    a = r = g = b = 0;
+	}
+	else
+	{
+	    if ((formats[n].direct.redMask|
+		 formats[n].direct.blueMask|
+		 formats[n].direct.greenMask) == 0)
+		type = PICT_TYPE_A;
+	    else if (formats[n].direct.red > formats[n].direct.blue)
+		type = PICT_TYPE_ARGB;
+	    else if (formats[n].direct.red == 0)
+		type = PICT_TYPE_ABGR;
+	    else
+		type = PICT_TYPE_BGRA;
+	    a = Ones (formats[n].direct.alphaMask);
+	    r = Ones (formats[n].direct.redMask);
+	    g = Ones (formats[n].direct.greenMask);
+	    b = Ones (formats[n].direct.blueMask);
+	}
+	formats[n].format = PICT_FORMAT(0,type,a,r,g,b);
+    }
+    ps = (PictureScreenPtr) malloc(sizeof (PictureScreenRec));
+    if (!ps)
+    {
+	free(formats);
+	return FALSE;
+    }
+    SetPictureScreen(pScreen, ps);
+
+    ps->formats = formats;
+    ps->fallback = formats;
+    ps->nformats = nformats;
+    
+    ps->filters = 0;
+    ps->nfilters = 0;
+    ps->filterAliases = 0;
+    ps->nfilterAliases = 0;
+
+    ps->subpixel = SubPixelUnknown;
+
+    ps->CloseScreen = pScreen->CloseScreen;
+    ps->DestroyWindow = pScreen->DestroyWindow;
+    ps->StoreColors = pScreen->StoreColors;
+    pScreen->DestroyWindow = PictureDestroyWindow;
+    pScreen->CloseScreen = PictureCloseScreen;
+    pScreen->StoreColors = PictureStoreColors;
+
+    if (!PictureSetDefaultFilters (pScreen))
+    {
+	PictureResetFilters (pScreen);
+	SetPictureScreen(pScreen, 0);
+	free(formats);
+	free(ps);
+	return FALSE;
+    }
+
+    return TRUE;
+}
+
+void
+SetPictureToDefaults (PicturePtr    pPicture)
+{
+    pPicture->refcnt = 1;
+    pPicture->repeat = 0;
+    pPicture->graphicsExposures = FALSE;
+    pPicture->subWindowMode = ClipByChildren;
+    pPicture->polyEdge = PolyEdgeSharp;
+    pPicture->polyMode = PolyModePrecise;
+    pPicture->freeCompClip = FALSE;
+    pPicture->clientClipType = CT_NONE;
+    pPicture->componentAlpha = FALSE;
+    pPicture->repeatType = RepeatNone;
+
+    pPicture->alphaMap = 0;
+    pPicture->alphaOrigin.x = 0;
+    pPicture->alphaOrigin.y = 0;
+
+    pPicture->clipOrigin.x = 0;
+    pPicture->clipOrigin.y = 0;
+    pPicture->clientClip = 0;
+
+    pPicture->transform = 0;
+
+    pPicture->filter = PictureGetFilterId (FilterNearest, -1, TRUE);
+    pPicture->filter_params = 0;
+    pPicture->filter_nparams = 0;
+
+    pPicture->serialNumber = GC_CHANGE_SERIAL_BIT;
+    pPicture->stateChanges = -1;
+    pPicture->pSourcePict = 0;
+}
+
+PicturePtr
+CreatePicture (Picture		pid,
+	       DrawablePtr	pDrawable,
+	       PictFormatPtr	pFormat,
+	       Mask		vmask,
+	       XID		*vlist,
+	       ClientPtr	client,
+	       int		*error)
+{
+    PicturePtr		pPicture;
+    PictureScreenPtr	ps = GetPictureScreen(pDrawable->pScreen);
+
+    pPicture = dixAllocateObjectWithPrivates(PictureRec, PRIVATE_PICTURE);
+    if (!pPicture)
+    {
+	*error = BadAlloc;
+	return 0;
+    }
+
+    pPicture->id = pid;
+    pPicture->pDrawable = pDrawable;
+    pPicture->pFormat = pFormat;
+    pPicture->format = pFormat->format | (pDrawable->bitsPerPixel << 24);
+
+    /* security creation/labeling check */
+    *error = XaceHook(XACE_RESOURCE_ACCESS, client, pid, PictureType, pPicture,
+		      RT_PIXMAP, pDrawable, DixCreateAccess|DixSetAttrAccess);
+    if (*error != Success)
+	goto out;
+
+    if (pDrawable->type == DRAWABLE_PIXMAP)
+    {
+	++((PixmapPtr)pDrawable)->refcnt;
+	pPicture->pNext = 0;
+    }
+    else
+    {
+	pPicture->pNext = GetPictureWindow(((WindowPtr) pDrawable));
+	SetPictureWindow(((WindowPtr) pDrawable), pPicture);
+    }
+
+    SetPictureToDefaults (pPicture);
+    
+    if (vmask)
+	*error = ChangePicture (pPicture, vmask, vlist, 0, client);
+    else
+	*error = Success;
+    if (*error == Success)
+	*error = (*ps->CreatePicture) (pPicture);
+out:
+    if (*error != Success)
+    {
+	FreePicture (pPicture, (XID) 0);
+	pPicture = 0;
+    }
+    return pPicture;
+}
+
+static CARD32 xRenderColorToCard32(xRenderColor c)
+{
+    return
+        (c.alpha >> 8 << 24) |
+        (c.red >> 8 << 16) |
+        (c.green & 0xff00) |
+        (c.blue >> 8);
+}
+
+static void initGradient(SourcePictPtr pGradient, int stopCount,
+                         xFixed *stopPoints, xRenderColor *stopColors, int *error)
+{
+    int i;
+    xFixed dpos;
+
+    if (stopCount <= 0) {
+        *error = BadValue;
+        return;
+    }
+
+    dpos = -1;
+    for (i = 0; i < stopCount; ++i) {
+        if (stopPoints[i] < dpos || stopPoints[i] > (1<<16)) {
+            *error = BadValue;
+            return;
+        }
+        dpos = stopPoints[i];
+    }
+
+    pGradient->gradient.stops = malloc(stopCount*sizeof(PictGradientStop));
+    if (!pGradient->gradient.stops) {
+        *error = BadAlloc;
+        return;
+    }
+
+    pGradient->gradient.nstops = stopCount;
+
+    for (i = 0; i < stopCount; ++i) {
+        pGradient->gradient.stops[i].x = stopPoints[i];
+        pGradient->gradient.stops[i].color = stopColors[i];
+    }
+}
+
+static PicturePtr createSourcePicture(void)
+{
+    PicturePtr pPicture;
+    pPicture = dixAllocateObjectWithPrivates(PictureRec, PRIVATE_PICTURE);
+    pPicture->pDrawable = 0;
+    pPicture->pFormat = 0;
+    pPicture->pNext = 0;
+    pPicture->format = PICT_a8r8g8b8;
+
+    SetPictureToDefaults(pPicture);
+    return pPicture;
+}
+
+PicturePtr
+CreateSolidPicture (Picture pid, xRenderColor *color, int *error)
+{
+    PicturePtr pPicture;
+    pPicture = createSourcePicture();
+    if (!pPicture) {
+        *error = BadAlloc;
+        return 0;
+    }
+
+    pPicture->id = pid;
+    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictSolidFill));
+    if (!pPicture->pSourcePict) {
+        *error = BadAlloc;
+        free(pPicture);
+        return 0;
+    }
+    pPicture->pSourcePict->type = SourcePictTypeSolidFill;
+    pPicture->pSourcePict->solidFill.color = xRenderColorToCard32(*color);
+    return pPicture;
+}
+
+PicturePtr
+CreateLinearGradientPicture (Picture pid, xPointFixed *p1, xPointFixed *p2,
+                             int nStops, xFixed *stops, xRenderColor *colors, int *error)
+{
+    PicturePtr pPicture;
+
+    if (nStops < 2) {
+        *error = BadValue;
+        return 0;
+    }
+
+    pPicture = createSourcePicture();
+    if (!pPicture) {
+        *error = BadAlloc;
+        return 0;
+    }
+
+    pPicture->id = pid;
+    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictLinearGradient));
+    if (!pPicture->pSourcePict) {
+        *error = BadAlloc;
+        free(pPicture);
+        return 0;
+    }
+
+    pPicture->pSourcePict->linear.type = SourcePictTypeLinear;
+    pPicture->pSourcePict->linear.p1 = *p1;
+    pPicture->pSourcePict->linear.p2 = *p2;
+
+    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
+    if (*error) {
+        free(pPicture);
+        return 0;
+    }
+    return pPicture;
+}
+
+PicturePtr
+CreateRadialGradientPicture (Picture pid, xPointFixed *inner, xPointFixed *outer,
+                             xFixed innerRadius, xFixed outerRadius,
+                             int nStops, xFixed *stops, xRenderColor *colors, int *error)
+{
+    PicturePtr pPicture;
+    PictRadialGradient *radial;
+
+    if (nStops < 2) {
+        *error = BadValue;
+        return 0;
+    }
+
+    pPicture = createSourcePicture();
+    if (!pPicture) {
+        *error = BadAlloc;
+        return 0;
+    }
+
+    pPicture->id = pid;
+    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictRadialGradient));
+    if (!pPicture->pSourcePict) {
+        *error = BadAlloc;
+        free(pPicture);
+        return 0;
+    }
+    radial = &pPicture->pSourcePict->radial;
+
+    radial->type = SourcePictTypeRadial;
+    radial->c1.x = inner->x;
+    radial->c1.y = inner->y;
+    radial->c1.radius = innerRadius;
+    radial->c2.x = outer->x;
+    radial->c2.y = outer->y;
+    radial->c2.radius = outerRadius;
+    
+    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
+    if (*error) {
+        free(pPicture);
+        return 0;
+    }
+    return pPicture;
+}
+
+PicturePtr
+CreateConicalGradientPicture (Picture pid, xPointFixed *center, xFixed angle,
+                              int nStops, xFixed *stops, xRenderColor *colors, int *error)
+{
+    PicturePtr pPicture;
+
+    if (nStops < 2) {
+        *error = BadValue;
+        return 0;
+    }
+
+    pPicture = createSourcePicture();
+    if (!pPicture) {
+        *error = BadAlloc;
+        return 0;
+    }
+
+    pPicture->id = pid;
+    pPicture->pSourcePict = (SourcePictPtr) malloc(sizeof(PictConicalGradient));
+    if (!pPicture->pSourcePict) {
+        *error = BadAlloc;
+        free(pPicture);
+        return 0;
+    }
+
+    pPicture->pSourcePict->conical.type = SourcePictTypeConical;
+    pPicture->pSourcePict->conical.center = *center;
+    pPicture->pSourcePict->conical.angle = angle;
+
+    initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
+    if (*error) {
+        free(pPicture);
+        return 0;
+    }
+    return pPicture;
+}
+
+#define NEXT_VAL(_type) (vlist ? (_type) *vlist++ : (_type) ulist++->val)
+
+#define NEXT_PTR(_type) ((_type) ulist++->ptr)
+
+int
+ChangePicture (PicturePtr	pPicture,
+	       Mask		vmask,
+	       XID		*vlist,
+	       DevUnion		*ulist,
+	       ClientPtr	client)
+{
+    ScreenPtr pScreen = pPicture->pDrawable ? pPicture->pDrawable->pScreen : 0;
+    PictureScreenPtr ps = pScreen ? GetPictureScreen(pScreen) : 0;
+    BITS32		index2;
+    int			error = 0;
+    BITS32		maskQ;
+    
+    pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
+    maskQ = vmask;
+    while (vmask && !error)
+    {
+	index2 = (BITS32) lowbit (vmask);
+	vmask &= ~index2;
+	pPicture->stateChanges |= index2;
+	switch (index2)
+	{
+	case CPRepeat:
+	    {
+		unsigned int	newr;
+		newr = NEXT_VAL(unsigned int);
+		if (newr <= RepeatReflect)
+		{
+		    pPicture->repeat = (newr != RepeatNone);
+		    pPicture->repeatType = newr;
+		}
+		else
+		{
+		    client->errorValue = newr;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	case CPAlphaMap:
+	    {
+		PicturePtr  pAlpha;
+		
+		if (vlist)
+		{
+		    Picture	pid = NEXT_VAL(Picture);
+
+		    if (pid == None)
+			pAlpha = 0;
+		    else
+		    {
+			error = dixLookupResourceByType((pointer *)&pAlpha, pid,
+						  PictureType, client,
+						  DixReadAccess);
+			if (error != Success)
+			{
+			    client->errorValue = pid;
+			    break;
+			}
+			if (pAlpha->pDrawable == NULL ||
+			    pAlpha->pDrawable->type != DRAWABLE_PIXMAP)
+			{
+			    client->errorValue = pid;
+			    error = BadMatch;
+			    break;
+			}
+		    }
+		}
+		else
+		    pAlpha = NEXT_PTR(PicturePtr);
+		if (!error)
+		{
+		    if (pAlpha && pAlpha->pDrawable->type == DRAWABLE_PIXMAP)
+			pAlpha->refcnt++;
+		    if (pPicture->alphaMap)
+			FreePicture ((pointer) pPicture->alphaMap, (XID) 0);
+		    pPicture->alphaMap = pAlpha;
+		}
+	    }
+	    break;
+	case CPAlphaXOrigin:
+	    pPicture->alphaOrigin.x = NEXT_VAL(INT16);
+	    break;
+	case CPAlphaYOrigin:
+	    pPicture->alphaOrigin.y = NEXT_VAL(INT16);
+	    break;
+	case CPClipXOrigin:
+	    pPicture->clipOrigin.x = NEXT_VAL(INT16);
+	    break;
+	case CPClipYOrigin:
+	    pPicture->clipOrigin.y = NEXT_VAL(INT16);
+	    break;
+	case CPClipMask:
+	    {
+		Pixmap	    pid;
+		PixmapPtr   pPixmap;
+		int	    clipType;
+                if (!pScreen)
+                    return BadDrawable;
+
+		if (vlist)
+		{
+		    pid = NEXT_VAL(Pixmap);
+		    if (pid == None)
+		    {
+			clipType = CT_NONE;
+			pPixmap = NullPixmap;
+		    }
+		    else
+		    {
+			clipType = CT_PIXMAP;
+			error = dixLookupResourceByType((pointer *)&pPixmap, pid,
+						  RT_PIXMAP, client,
+						  DixReadAccess);
+			if (error != Success)
+			{
+			    client->errorValue = pid;
+			    break;
+			}
+		    }
+		}
+		else
+		{
+		    pPixmap = NEXT_PTR(PixmapPtr);
+		    if (pPixmap)
+			clipType = CT_PIXMAP;
+		    else
+			clipType = CT_NONE;
+		}
+
+		if (pPixmap)
+		{
+		    if ((pPixmap->drawable.depth != 1) ||
+			(pPixmap->drawable.pScreen != pScreen))
+		    {
+			error = BadMatch;
+			break;
+		    }
+		    else
+		    {
+			clipType = CT_PIXMAP;
+			pPixmap->refcnt++;
+		    }
+		}
+		error = (*ps->ChangePictureClip)(pPicture, clipType,
+						 (pointer)pPixmap, 0);
+		break;
+	    }
+	case CPGraphicsExposure:
+	    {
+		unsigned int	newe;
+		newe = NEXT_VAL(unsigned int);
+		if (newe <= xTrue)
+		    pPicture->graphicsExposures = newe;
+		else
+		{
+		    client->errorValue = newe;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	case CPSubwindowMode:
+	    {
+		unsigned int	news;
+		news = NEXT_VAL(unsigned int);
+		if (news == ClipByChildren || news == IncludeInferiors)
+		    pPicture->subWindowMode = news;
+		else
+		{
+		    client->errorValue = news;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	case CPPolyEdge:
+	    {
+		unsigned int	newe;
+		newe = NEXT_VAL(unsigned int);
+		if (newe == PolyEdgeSharp || newe == PolyEdgeSmooth)
+		    pPicture->polyEdge = newe;
+		else
+		{
+		    client->errorValue = newe;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	case CPPolyMode:
+	    {
+		unsigned int	newm;
+		newm = NEXT_VAL(unsigned int);
+		if (newm == PolyModePrecise || newm == PolyModeImprecise)
+		    pPicture->polyMode = newm;
+		else
+		{
+		    client->errorValue = newm;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	case CPDither:
+	    (void) NEXT_VAL(Atom); /* unimplemented */
+	    break;
+	case CPComponentAlpha:
+	    {
+		unsigned int	newca;
+
+		newca = NEXT_VAL (unsigned int);
+		if (newca <= xTrue)
+		    pPicture->componentAlpha = newca;
+		else
+		{
+		    client->errorValue = newca;
+		    error = BadValue;
+		}
+	    }
+	    break;
+	default:
+	    client->errorValue = maskQ;
+	    error = BadValue;
+	    break;
+	}
+    }
+    if (ps)
+        (*ps->ChangePicture) (pPicture, maskQ);
+    return error;
+}
+
+int
+SetPictureClipRects (PicturePtr	pPicture,
+		     int	xOrigin,
+		     int	yOrigin,
+		     int	nRect,
+		     xRectangle	*rects)
+{
+    ScreenPtr		pScreen = pPicture->pDrawable->pScreen;
+    PictureScreenPtr	ps = GetPictureScreen(pScreen);
+    RegionPtr		clientClip;
+    int			result;
+
+    clientClip = RegionFromRects(nRect, rects, CT_UNSORTED);
+    if (!clientClip)
+	return BadAlloc;
+    result =(*ps->ChangePictureClip) (pPicture, CT_REGION, 
+				      (pointer) clientClip, 0);
+    if (result == Success)
+    {
+	pPicture->clipOrigin.x = xOrigin;
+	pPicture->clipOrigin.y = yOrigin;
+	pPicture->stateChanges |= CPClipXOrigin|CPClipYOrigin|CPClipMask;
+	pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
+    }
+    return result;
+}
+
+int
+SetPictureClipRegion (PicturePtr    pPicture,
+                      int           xOrigin,
+                      int           yOrigin,
+                      RegionPtr     pRegion)
+{
+    ScreenPtr           pScreen = pPicture->pDrawable->pScreen;
+    PictureScreenPtr    ps = GetPictureScreen(pScreen);
+    RegionPtr           clientClip;
+    int                 result;
+    int                 type;
+
+    if (pRegion)
+    {
+        type = CT_REGION;
+        clientClip = RegionCreate(RegionExtents(pRegion),
+                                  RegionNumRects(pRegion));
+        if (!clientClip)
+            return BadAlloc;
+        if (!RegionCopy(clientClip, pRegion))
+        {
+            RegionDestroy(clientClip);
+            return BadAlloc;
+        }
+    }
+    else
+    {
+        type = CT_NONE;
+        clientClip = 0;
+    }
+
+    result =(*ps->ChangePictureClip) (pPicture, type,
+                                      (pointer) clientClip, 0);
+    if (result == Success)
+    {
+        pPicture->clipOrigin.x = xOrigin;
+        pPicture->clipOrigin.y = yOrigin;
+        pPicture->stateChanges |= CPClipXOrigin|CPClipYOrigin|CPClipMask;
+        pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
+    }
+    return result;
+}
+
+static Bool
+transformIsIdentity(PictTransform *t)
+{
+    return ((t->matrix[0][0] == t->matrix[1][1]) &&
+            (t->matrix[0][0] == t->matrix[2][2]) &&
+            (t->matrix[0][0] != 0) &&
+            (t->matrix[0][1] == 0) &&
+            (t->matrix[0][2] == 0) &&
+            (t->matrix[1][0] == 0) &&
+            (t->matrix[1][2] == 0) &&
+            (t->matrix[2][0] == 0) &&
+            (t->matrix[2][1] == 0));
+}
+
+int
+SetPictureTransform (PicturePtr	    pPicture,
+		     PictTransform  *transform)
+{
+    if (transform && transformIsIdentity (transform))
+	transform = 0;
+    
+    if (transform)
+    {
+	if (!pPicture->transform)
+	{
+	    pPicture->transform = (PictTransform *) malloc(sizeof (PictTransform));
+	    if (!pPicture->transform)
+		return BadAlloc;
+	}
+	*pPicture->transform = *transform;
+    }
+    else
+    {
+	free(pPicture->transform);
+	pPicture->transform = NULL;
+    }
+    pPicture->serialNumber |= GC_CHANGE_SERIAL_BIT;
+
+    if (pPicture->pDrawable != NULL) {
+	int result;
+	PictureScreenPtr ps = GetPictureScreen(pPicture->pDrawable->pScreen);
+
+	result = (*ps->ChangePictureTransform) (pPicture, transform);
+
+	return result;
+    }
+
+    return Success;
+}
+
+void
+CopyPicture (PicturePtr	pSrc,
+	     Mask	mask,
+	     PicturePtr	pDst)
+{
+    PictureScreenPtr ps = GetPictureScreen(pSrc->pDrawable->pScreen);
+    Mask origMask = mask;
+
+    pDst->serialNumber |= GC_CHANGE_SERIAL_BIT;
+    pDst->stateChanges |= mask;
+
+    while (mask) {
+	Mask bit = lowbit(mask);
+
+	switch (bit)
+	{
+	case CPRepeat:
+	    pDst->repeat = pSrc->repeat;
+	    pDst->repeatType = pSrc->repeatType;
+	    break;
+	case CPAlphaMap:
+	    if (pSrc->alphaMap && pSrc->alphaMap->pDrawable->type == DRAWABLE_PIXMAP)
+		pSrc->alphaMap->refcnt++;
+	    if (pDst->alphaMap)
+		FreePicture ((pointer) pDst->alphaMap, (XID) 0);
+	    pDst->alphaMap = pSrc->alphaMap;
+	    break;
+	case CPAlphaXOrigin:
+	    pDst->alphaOrigin.x = pSrc->alphaOrigin.x;
+	    break;
+	case CPAlphaYOrigin:
+	    pDst->alphaOrigin.y = pSrc->alphaOrigin.y;
+	    break;
+	case CPClipXOrigin:
+	    pDst->clipOrigin.x = pSrc->clipOrigin.x;
+	    break;
+	case CPClipYOrigin:
+	    pDst->clipOrigin.y = pSrc->clipOrigin.y;
+	    break;
+	case CPClipMask:
+	    switch (pSrc->clientClipType) {
+	    case CT_NONE:
+		(*ps->ChangePictureClip)(pDst, CT_NONE, NULL, 0);
+		break;
+	    case CT_REGION:
+		if (!pSrc->clientClip) {
+		    (*ps->ChangePictureClip)(pDst, CT_NONE, NULL, 0);
+		} else {
+		    RegionPtr clientClip;
+		    RegionPtr srcClientClip = (RegionPtr)pSrc->clientClip;
+
+		    clientClip = RegionCreate(
+			RegionExtents(srcClientClip),
+			RegionNumRects(srcClientClip));
+		    (*ps->ChangePictureClip)(pDst, CT_REGION, clientClip, 0);
+		}
+		break;
+	    default:
+		/* XXX: CT_PIXMAP unimplemented */
+		break;
+	    }
+	    break;
+	case CPGraphicsExposure:
+	    pDst->graphicsExposures = pSrc->graphicsExposures;
+	    break;
+	case CPPolyEdge:
+	    pDst->polyEdge = pSrc->polyEdge;
+	    break;
+	case CPPolyMode:
+	    pDst->polyMode = pSrc->polyMode;
+	    break;
+	case CPDither:
+	    break;
+	case CPComponentAlpha:
+	    pDst->componentAlpha = pSrc->componentAlpha;
+	    break;
+	}
+	mask &= ~bit;
+    }
+
+    (*ps->ChangePicture)(pDst, origMask);
+}
+
+static void
+ValidateOnePicture (PicturePtr pPicture)
+{
+    if (pPicture->pDrawable && pPicture->serialNumber != pPicture->pDrawable->serialNumber)
+    {
+	PictureScreenPtr    ps = GetPictureScreen(pPicture->pDrawable->pScreen);
+
+	(*ps->ValidatePicture) (pPicture, pPicture->stateChanges);
+	pPicture->stateChanges = 0;
+	pPicture->serialNumber = pPicture->pDrawable->serialNumber;
+    }
+}
+
+void
+ValidatePicture(PicturePtr pPicture)
+{
+    ValidateOnePicture (pPicture);
+    if (pPicture->alphaMap)
+	ValidateOnePicture (pPicture->alphaMap);
+}
+
+int
+FreePicture (pointer	value,
+	     XID	pid)
+{
+    PicturePtr	pPicture = (PicturePtr) value;
+
+    if (--pPicture->refcnt == 0)
+    {
+	free(pPicture->transform);
+
+	if (pPicture->pSourcePict)
+	{
+	    if (pPicture->pSourcePict->type != SourcePictTypeSolidFill)
+		free(pPicture->pSourcePict->linear.stops);
+
+	    free(pPicture->pSourcePict);
+	}
+
+	if (pPicture->pDrawable)
+	{
+            ScreenPtr	    pScreen = pPicture->pDrawable->pScreen;
+            PictureScreenPtr    ps = GetPictureScreen(pScreen);
+	
+            if (pPicture->alphaMap)
+                FreePicture ((pointer) pPicture->alphaMap, (XID) 0);
+            (*ps->DestroyPicture) (pPicture);
+            (*ps->DestroyPictureClip) (pPicture);
+            if (pPicture->pDrawable->type == DRAWABLE_WINDOW)
+            {
+                WindowPtr	pWindow = (WindowPtr) pPicture->pDrawable;
+                PicturePtr	*pPrev;
+
+                for (pPrev = (PicturePtr *)dixLookupPrivateAddr
+			 (&pWindow->devPrivates, PictureWindowPrivateKey);
+                     *pPrev;
+                     pPrev = &(*pPrev)->pNext)
+                {
+                    if (*pPrev == pPicture)
+                    {
+                        *pPrev = pPicture->pNext;
+                        break;
+                    }
+                }
+            }
+            else if (pPicture->pDrawable->type == DRAWABLE_PIXMAP)
+            {
+                (*pScreen->DestroyPixmap) ((PixmapPtr)pPicture->pDrawable);
+            }
+        }
+	dixFreeObjectWithPrivates(pPicture, PRIVATE_PICTURE);
+    }
+    return Success;
+}
+
+int
+FreePictFormat (pointer	pPictFormat,
+		XID     pid)
+{
+    return Success;
+}
+
+/**
+ * ReduceCompositeOp is used to choose simpler ops for cases where alpha
+ * channels are always one and so math on the alpha channel per pixel becomes
+ * unnecessary.  It may also avoid destination reads sometimes if apps aren't
+ * being careful to avoid these cases.
+ */
+static CARD8
+ReduceCompositeOp (CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst,
+		   INT16 xSrc, INT16 ySrc, CARD16 width, CARD16 height)
+{
+    Bool no_src_alpha, no_dst_alpha;
+
+    /* Sampling off the edge of a RepeatNone picture introduces alpha
+     * even if the picture itself doesn't have alpha. We don't try to
+     * detect every case where we don't sample off the edge, just the
+     * simplest case where there is no transform on the source
+     * picture.
+     */
+    no_src_alpha = PICT_FORMAT_COLOR(pSrc->format) &&
+                   PICT_FORMAT_A(pSrc->format) == 0 &&
+                   (pSrc->repeatType != RepeatNone ||
+		    (!pSrc->transform &&
+		     xSrc >= 0 && ySrc >= 0 &&
+		     xSrc + width <= pSrc->pDrawable->width &&
+		     ySrc + height <= pSrc->pDrawable->height)) &&
+                   pSrc->alphaMap == NULL &&
+                   pMask == NULL;
+    no_dst_alpha = PICT_FORMAT_COLOR(pDst->format) &&
+                   PICT_FORMAT_A(pDst->format) == 0 &&
+                   pDst->alphaMap == NULL;
+
+    /* TODO, maybe: Conjoint and Disjoint op reductions? */
+ 
+    /* Deal with simplifications where the source alpha is always 1. */
+    if (no_src_alpha)
+    {
+	switch (op) {
+	case PictOpOver:
+	    op = PictOpSrc;
+	    break;
+	case PictOpInReverse:
+	    op = PictOpDst;
+	    break;
+	case PictOpOutReverse:
+	    op = PictOpClear;
+	    break;
+	case PictOpAtop:
+	    op = PictOpIn;
+	    break;
+	case PictOpAtopReverse:
+	    op = PictOpOverReverse;
+	    break;
+	case PictOpXor:
+	    op = PictOpOut;
+	    break;
+	default:
+	    break;
+	}
+    }
+
+    /* Deal with simplifications when the destination alpha is always 1 */
+    if (no_dst_alpha)
+    {
+	switch (op) {
+	case PictOpOverReverse:
+	    op = PictOpDst;
+	    break;
+	case PictOpIn:
+	    op = PictOpSrc;
+	    break;
+	case PictOpOut:
+	    op = PictOpClear;
+	    break;
+	case PictOpAtop:
+	    op = PictOpOver;
+	    break;
+	case PictOpXor:
+	    op = PictOpOutReverse;
+	    break;
+	default:
+	    break;
+	}
+    }
+
+    /* Reduce some con/disjoint ops to the basic names. */
+    switch (op) {
+    case PictOpDisjointClear:
+    case PictOpConjointClear:
+	op = PictOpClear;
+	break;
+    case PictOpDisjointSrc:
+    case PictOpConjointSrc:
+	op = PictOpSrc;
+	break;
+    case PictOpDisjointDst:
+    case PictOpConjointDst:
+	op = PictOpDst;
+	break;
+    default:
+	break;
+    }
+
+    return op;
+}
+
+void
+CompositePicture (CARD8		op,
+		  PicturePtr	pSrc,
+		  PicturePtr	pMask,
+		  PicturePtr	pDst,
+		  INT16		xSrc,
+		  INT16		ySrc,
+		  INT16		xMask,
+		  INT16		yMask,
+		  INT16		xDst,
+		  INT16		yDst,
+		  CARD16	width,
+		  CARD16	height)
+{
+    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);
+    
+    ValidatePicture (pSrc);
+    if (pMask)
+	ValidatePicture (pMask);
+    ValidatePicture (pDst);
+
+    op = ReduceCompositeOp (op, pSrc, pMask, pDst, xSrc, ySrc, width, height);
+    if (op == PictOpDst)
+	return;
+
+    (*ps->Composite) (op,
+		       pSrc,
+		       pMask,
+		       pDst,
+		       xSrc,
+		       ySrc,
+		       xMask,
+		       yMask,
+		       xDst,
+		       yDst,
+		       width,
+		       height);
+}
+
+void
+CompositeRects (CARD8		op,
+		PicturePtr	pDst,
+		xRenderColor	*color,
+		int		nRect,
+		xRectangle      *rects)
+{
+    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);
+    
+    ValidatePicture (pDst);
+    (*ps->CompositeRects) (op, pDst, color, nRect, rects);
+}
+
+void
+CompositeTrapezoids (CARD8	    op,
+		     PicturePtr	    pSrc,
+		     PicturePtr	    pDst,
+		     PictFormatPtr  maskFormat,
+		     INT16	    xSrc,
+		     INT16	    ySrc,
+		     int	    ntrap,
+		     xTrapezoid	    *traps)
+{
+    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);
+    
+    ValidatePicture (pSrc);
+    ValidatePicture (pDst);
+    (*ps->Trapezoids) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntrap, traps);
+}
+
+void
+CompositeTriangles (CARD8	    op,
+		    PicturePtr	    pSrc,
+		    PicturePtr	    pDst,
+		    PictFormatPtr   maskFormat,
+		    INT16	    xSrc,
+		    INT16	    ySrc,
+		    int		    ntriangles,
+		    xTriangle	    *triangles)
+{
+    PictureScreenPtr	ps = GetPictureScreen(pDst->pDrawable->pScreen);
+    
+    ValidatePicture (pSrc);
+    ValidatePicture (pDst);
+    (*ps->Triangles) (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntriangles, triangles);
+}
+
+void
+CompositeTriStrip (CARD8	    op,
+		   PicturePtr	    pSrc,
+		   PicturePtr	    pDst,
+		   PictFormatPtr    maskFormat,
+		   INT16	    xSrc,
+		   INT16	    ySrc,
+		   int		    npoints,
+		   xPointFixed	    *points)
+{
+    xTriangle           *tris, *tri;
+    int                 ntri;
+    
+    if (npoints < 3)
+        return;
+    ntri = npoints - 2;
+    tris = malloc(ntri * sizeof (xTriangle));
+    if (!tris)
+        return;
+    for (tri = tris; npoints >= 3; npoints--, points++, tri++)
+    {
+        tri->p1 = points[0];
+        tri->p2 = points[1];
+        tri->p3 = points[2];
+    }
+    CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
+    free(tris);
+}
+
+void
+CompositeTriFan (CARD8		op,
+		 PicturePtr	pSrc,
+		 PicturePtr	pDst,
+		 PictFormatPtr	maskFormat,
+		 INT16		xSrc,
+		 INT16		ySrc,
+		 int		npoints,
+		 xPointFixed	*points)
+{
+    xTriangle		*tris, *tri;
+    xPointFixed		*first;
+    int			ntri;
+    
+    if (npoints < 3)
+	return;
+    ntri = npoints - 2;
+    tris = malloc(ntri * sizeof (xTriangle));
+    if (!tris)
+	return;
+    first = points++;
+    for (tri = tris; npoints >= 3; npoints--, points++, tri++)
+    {
+	tri->p1 = *first;
+	tri->p2 = points[0];
+	tri->p3 = points[1];
+    }
+    CompositeTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, ntri, tris);
+    free(tris);
+}
+
+void
+AddTraps (PicturePtr	pPicture,
+	  INT16		xOff,
+	  INT16		yOff,
+	  int		ntrap,
+	  xTrap		*traps)
+{
+    PictureScreenPtr	ps = GetPictureScreen(pPicture->pDrawable->pScreen);
+    
+    ValidatePicture (pPicture);
+    (*ps->AddTraps) (pPicture, xOff, yOff, ntrap, traps);
+}
+