xserver git update 15/5/2010

1 files changed, 973 insertions, 973 deletions

diff --git a/xorg-server/hw/vfb/InitOutput.c b/xorg-server/hw/vfb/InitOutput.c
index 29857877e..30e68e5d3 100644
--- a/xorg-server/hw/vfb/InitOutput.c
+++ b/xorg-server/hw/vfb/InitOutput.c
@@ -1,973 +1,973 @@
-/*
-
-Copyright 1993, 1998  The Open Group
-
-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.
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-*/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#if defined(WIN32)
-#include <X11/Xwinsock.h>
-#endif
-#include <stdio.h>
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include <X11/Xos.h>
-#include "scrnintstr.h"
-#include "servermd.h"
-#define PSZ 8
-#include "fb.h"
-#include "mibstore.h"
-#include "colormapst.h"
-#include "gcstruct.h"
-#include "input.h"
-#include "mipointer.h"
-#include "micmap.h"
-#include <sys/types.h>
-#ifdef HAS_MMAP
-#include <sys/mman.h>
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-#endif /* HAS_MMAP */
-#include <sys/stat.h>
-#include <errno.h>
-#ifndef WIN32
-#include <sys/param.h>
-#endif
-#include <X11/XWDFile.h>
-#ifdef HAS_SHM
-#include <sys/ipc.h>
-#include <sys/shm.h>
-#endif /* HAS_SHM */
-#include "dix.h"
-#include "miline.h"
-
-#define VFB_DEFAULT_WIDTH      1280
-#define VFB_DEFAULT_HEIGHT     1024
-#define VFB_DEFAULT_DEPTH         8
-#define VFB_DEFAULT_WHITEPIXEL    1
-#define VFB_DEFAULT_BLACKPIXEL    0
-#define VFB_DEFAULT_LINEBIAS      0
-#define XWD_WINDOW_NAME_LEN      60
-
-typedef struct
-{
-    int width;
-    int paddedBytesWidth;
-    int paddedWidth;
-    int height;
-    int depth;
-    int bitsPerPixel;
-    int sizeInBytes;
-    int ncolors;
-    char *pfbMemory;
-    XWDColor *pXWDCmap;
-    XWDFileHeader *pXWDHeader;
-    Pixel blackPixel;
-    Pixel whitePixel;
-    unsigned int lineBias;
-    CloseScreenProcPtr closeScreen;
-
-#ifdef HAS_MMAP
-    int mmap_fd;
-    char mmap_file[MAXPATHLEN];
-#endif
-
-#ifdef HAS_SHM
-    int shmid;
-#endif
-} vfbScreenInfo, *vfbScreenInfoPtr;
-
-static int vfbNumScreens;
-static vfbScreenInfo *vfbScreens;
-static vfbScreenInfo defaultScreenInfo = {
-    .width  = VFB_DEFAULT_WIDTH,
-    .height = VFB_DEFAULT_HEIGHT,
-    .depth  = VFB_DEFAULT_DEPTH,
-    .blackPixel = VFB_DEFAULT_BLACKPIXEL,
-    .whitePixel = VFB_DEFAULT_WHITEPIXEL,
-    .lineBias = VFB_DEFAULT_LINEBIAS,
-};
-static Bool vfbPixmapDepths[33];
-#ifdef HAS_MMAP
-static char *pfbdir = NULL;
-#endif
-typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType;
-static fbMemType fbmemtype = NORMAL_MEMORY_FB;
-static char needswap = 0;
-static Bool Render = TRUE;
-
-#define swapcopy16(_dst, _src) \
-    if (needswap) { CARD16 _s = _src; cpswaps(_s, _dst); } \
-    else _dst = _src;
-
-#define swapcopy32(_dst, _src) \
-    if (needswap) { CARD32 _s = _src; cpswapl(_s, _dst); } \
-    else _dst = _src;
-
-
-static void
-vfbInitializePixmapDepths(void)
-{
-    int i;
-    vfbPixmapDepths[1] = TRUE; /* always need bitmaps */
-    for (i = 2; i <= 32; i++)
-	vfbPixmapDepths[i] = FALSE;
-}
-
-static int
-vfbBitsPerPixel(int depth)
-{
-    if (depth == 1) return 1;
-    else if (depth <= 8) return 8;
-    else if (depth <= 16) return 16;
-    else return 32;
-}
-
-void
-ddxGiveUp(void)
-{
-    int i;
-
-    /* clean up the framebuffers */
-
-    switch (fbmemtype)
-    {
-#ifdef HAS_MMAP
-    case MMAPPED_FILE_FB: 
-	for (i = 0; i < vfbNumScreens; i++)
-	{
-	    if (-1 == unlink(vfbScreens[i].mmap_file))
-	    {
-		perror("unlink");
-		ErrorF("unlink %s failed, %s",
-		       vfbScreens[i].mmap_file, strerror(errno));
-	    }
-	}
-	break;
-#else /* HAS_MMAP */
-    case MMAPPED_FILE_FB:
-        break;
-#endif /* HAS_MMAP */
-	
-#ifdef HAS_SHM
-    case SHARED_MEMORY_FB:
-	for (i = 0; i < vfbNumScreens; i++)
-	{
-	    if (-1 == shmdt((char *)vfbScreens[i].pXWDHeader))
-	    {
-		perror("shmdt");
-		ErrorF("shmdt failed, %s", strerror(errno));
-	    }
-	}
-	break;
-#else /* HAS_SHM */
-    case SHARED_MEMORY_FB:
-        break;
-#endif /* HAS_SHM */
-	
-    case NORMAL_MEMORY_FB:
-	for (i = 0; i < vfbNumScreens; i++)
-	{
-	    Xfree(vfbScreens[i].pXWDHeader);
-	}
-	break;
-    }
-}
-
-void
-AbortDDX(void)
-{
-    ddxGiveUp();
-}
-
-#ifdef __APPLE__
-void
-DarwinHandleGUI(int argc, char *argv[])
-{
-}
-#endif
-
-void
-OsVendorInit(void)
-{
-}
-
-void
-OsVendorFatalError(void)
-{
-}
-
-#if defined(DDXBEFORERESET)
-void ddxBeforeReset(void)
-{
-    return;
-}
-#endif
-
-void
-ddxUseMsg(void)
-{
-    ErrorF("-screen scrn WxHxD     set screen's width, height, depth\n");
-    ErrorF("-pixdepths list-of-int support given pixmap depths\n");
-    ErrorF("+/-render		   turn on/off RENDER extension support"
-	   "(default on)\n");
-    ErrorF("-linebias n            adjust thin line pixelization\n");
-    ErrorF("-blackpixel n          pixel value for black\n");
-    ErrorF("-whitepixel n          pixel value for white\n");
-
-#ifdef HAS_MMAP
-    ErrorF("-fbdir directory       put framebuffers in mmap'ed files in directory\n");
-#endif
-
-#ifdef HAS_SHM
-    ErrorF("-shmem                 put framebuffers in shared memory\n");
-#endif
-}
-
-int
-ddxProcessArgument(int argc, char *argv[], int i)
-{
-    static Bool firstTime = TRUE;
-    static int lastScreen = -1;
-    vfbScreenInfo *currentScreen;
-
-    if (firstTime)
-    {
-	vfbInitializePixmapDepths();
-        firstTime = FALSE;
-    }
-
-    if (lastScreen == -1)
-	currentScreen = &defaultScreenInfo;
-    else
-	currentScreen = &vfbScreens[lastScreen];
-
-#define CHECK_FOR_REQUIRED_ARGUMENTS(num) \
-    if (((i + num) >= argc) || (!argv[i + num])) {                      \
-      ErrorF("Required argument to %s not specified\n", argv[i]);       \
-      UseMsg();                                                         \
-      FatalError("Required argument to %s not specified\n", argv[i]);   \
-    }
-    
-    if (strcmp (argv[i], "-screen") == 0)	/* -screen n WxHxD */
-    {
-	int screenNum;
-	CHECK_FOR_REQUIRED_ARGUMENTS(2);
-	screenNum = atoi(argv[i+1]);
-	if (screenNum < 0)
-	{
-	    ErrorF("Invalid screen number %d\n", screenNum);
-	    UseMsg();
-	    FatalError("Invalid screen number %d passed to -screen\n",
-		       screenNum);
-	}
-
-	if (vfbNumScreens <= screenNum)
-	{
-	    vfbScreens = xrealloc(vfbScreens, sizeof(*vfbScreens) * (screenNum + 1));
-	    if (!vfbScreens)
-		FatalError("Not enough memory for screen %d\n", screenNum);
-	    for (; vfbNumScreens <= screenNum; ++vfbNumScreens)
-		vfbScreens[vfbNumScreens] = defaultScreenInfo;
-	}
-
-	if (3 != sscanf(argv[i+2], "%dx%dx%d",
-			&vfbScreens[screenNum].width,
-			&vfbScreens[screenNum].height,
-			&vfbScreens[screenNum].depth))
-	{
-	    ErrorF("Invalid screen configuration %s\n", argv[i+2]);
-	    UseMsg();
-	    FatalError("Invalid screen configuration %s for -screen %d\n",
-		   argv[i+2], screenNum);
-	}
-
-	lastScreen = screenNum;
-	return 3;
-    }
-
-    if (strcmp (argv[i], "-pixdepths") == 0)	/* -pixdepths list-of-depth */
-    {
-	int depth, ret = 1;
-
-	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	while ((++i < argc) && (depth = atoi(argv[i])) != 0)
-	{
-	    if (depth < 0 || depth > 32)
-	    {
-		ErrorF("Invalid pixmap depth %d\n", depth);
-		UseMsg();
-		FatalError("Invalid pixmap depth %d passed to -pixdepths\n",
-			   depth);
-	    }
-	    vfbPixmapDepths[depth] = TRUE;
-	    ret++;
-	}
-	return ret;
-    }
-
-    if (strcmp (argv[i], "+render") == 0)	/* +render */
-    {
-	Render = TRUE;
-	return 1;
-    }
-
-    if (strcmp (argv[i], "-render") == 0)	/* -render */
-    {
-	Render = FALSE;
-#ifdef COMPOSITE
-	noCompositeExtension = TRUE;
-#endif
-	return 1;
-    }
-
-    if (strcmp (argv[i], "-blackpixel") == 0)	/* -blackpixel n */
-    {
-	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	currentScreen->blackPixel = atoi(argv[++i]);
-	return 2;
-    }
-
-    if (strcmp (argv[i], "-whitepixel") == 0)	/* -whitepixel n */
-    {
-	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	currentScreen->whitePixel = atoi(argv[++i]);
-	return 2;
-    }
-
-    if (strcmp (argv[i], "-linebias") == 0)	/* -linebias n */
-    {
-	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	currentScreen->lineBias = atoi(argv[++i]);
-	return 2;
-    }
-
-#ifdef HAS_MMAP
-    if (strcmp (argv[i], "-fbdir") == 0)	/* -fbdir directory */
-    {
-	CHECK_FOR_REQUIRED_ARGUMENTS(1);
-	pfbdir = argv[++i];
-	fbmemtype = MMAPPED_FILE_FB;
-	return 2;
-    }
-#endif /* HAS_MMAP */
-
-#ifdef HAS_SHM
-    if (strcmp (argv[i], "-shmem") == 0)	/* -shmem */
-    {
-	fbmemtype = SHARED_MEMORY_FB;
-	return 1;
-    }
-#endif
-
-    return 0;
-}
-
-static int cmapScrPrivateKeyIndex;
-static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex;
-
-#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))
-#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))
-
-static int
-vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)
-{
-    /* By the time we are processing requests, we can guarantee that there
-     * is always a colormap installed */
-    *pmaps = GetInstalledColormap(pScreen)->mid;
-    return (1);
-}
-
-
-static void
-vfbInstallColormap(ColormapPtr pmap)
-{
-    ColormapPtr oldpmap = GetInstalledColormap(pmap->pScreen);
-
-    if (pmap != oldpmap)
-    {
-	int entries;
-	XWDFileHeader *pXWDHeader;
-	XWDColor *pXWDCmap;
-	VisualPtr pVisual;
-	Pixel *     ppix;
-	xrgb *      prgb;
-	xColorItem *defs;
-	int i;
-
-	if(oldpmap != (ColormapPtr)None)
-	    WalkTree(pmap->pScreen, TellLostMap, (char *)&oldpmap->mid);
-	/* Install pmap */
-	SetInstalledColormap(pmap->pScreen, pmap);
-	WalkTree(pmap->pScreen, TellGainedMap, (char *)&pmap->mid);
-
-	entries = pmap->pVisual->ColormapEntries;
-	pXWDHeader = vfbScreens[pmap->pScreen->myNum].pXWDHeader;
-	pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;
-	pVisual = pmap->pVisual;
-
-	swapcopy32(pXWDHeader->visual_class, pVisual->class);
-	swapcopy32(pXWDHeader->red_mask, pVisual->redMask);
-	swapcopy32(pXWDHeader->green_mask, pVisual->greenMask);
-	swapcopy32(pXWDHeader->blue_mask, pVisual->blueMask);
-	swapcopy32(pXWDHeader->bits_per_rgb, pVisual->bitsPerRGBValue);
-	swapcopy32(pXWDHeader->colormap_entries, pVisual->ColormapEntries);
-
-	ppix = (Pixel *)xalloc(entries * sizeof(Pixel));
-	prgb = (xrgb *)xalloc(entries * sizeof(xrgb));
-	defs = (xColorItem *)xalloc(entries * sizeof(xColorItem));
-
-	for (i = 0; i < entries; i++)  ppix[i] = i;
-	/* XXX truecolor */
-	QueryColors(pmap, entries, ppix, prgb);
-
-	for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */
-	    defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */
-	    defs[i].red = prgb[i].red;
-	    defs[i].green = prgb[i].green;
-	    defs[i].blue = prgb[i].blue;
-	    defs[i].flags =  DoRed|DoGreen|DoBlue;
-	}
-	(*pmap->pScreen->StoreColors)(pmap, entries, defs);
-
-	xfree(ppix);
-	xfree(prgb);
-	xfree(defs);
-    }
-}
-
-static void
-vfbUninstallColormap(ColormapPtr pmap)
-{
-    ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen);
-
-    if(pmap == curpmap)
-    {
-	if (pmap->mid != pmap->pScreen->defColormap)
-	{
-	    dixLookupResourceByType((pointer *)&curpmap,
-				    pmap->pScreen->defColormap,
-				    RT_COLORMAP, serverClient,
-				    DixInstallAccess);
-	    (*pmap->pScreen->InstallColormap)(curpmap);
-	}
-    }
-}
-
-static void
-vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs)
-{
-    XWDColor *pXWDCmap;
-    int i;
-
-    if (pmap != GetInstalledColormap(pmap->pScreen))
-    {
-	return;
-    }
-
-    pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;
-
-    if ((pmap->pVisual->class | DynamicClass) == DirectColor)
-    {
-	return;
-    }
-
-    for (i = 0; i < ndef; i++)
-    {
-	if (pdefs[i].flags & DoRed)
-	{
-	    swapcopy16(pXWDCmap[pdefs[i].pixel].red, pdefs[i].red);
-	}
-	if (pdefs[i].flags & DoGreen)
-	{
-	    swapcopy16(pXWDCmap[pdefs[i].pixel].green, pdefs[i].green);
-	}
-	if (pdefs[i].flags & DoBlue)
-	{
-	    swapcopy16(pXWDCmap[pdefs[i].pixel].blue, pdefs[i].blue);
-	}
-    }
-}
-
-static Bool
-vfbSaveScreen(ScreenPtr pScreen, int on)
-{
-    return TRUE;
-}
-
-#ifdef HAS_MMAP
-
-/* this flushes any changes to the screens out to the mmapped file */
-static void
-vfbBlockHandler(pointer blockData, OSTimePtr pTimeout, pointer pReadmask)
-{
-    int i;
-
-    for (i = 0; i < vfbNumScreens; i++)
-    {
-#ifdef MS_ASYNC
-	if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,
-			(size_t)vfbScreens[i].sizeInBytes, MS_ASYNC))
-#else
-	/* silly NetBSD and who else? */
-	if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,
-			(size_t)vfbScreens[i].sizeInBytes))
-#endif
-	{
-	    perror("msync");
-	    ErrorF("msync failed, %s", strerror(errno));
-	}
-    }
-}
-
-
-static void
-vfbWakeupHandler(pointer blockData, int result, pointer pReadmask)
-{
-}
-
-
-static void
-vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb)
-{
-#define DUMMY_BUFFER_SIZE 65536
-    char dummyBuffer[DUMMY_BUFFER_SIZE];
-    int currentFileSize, writeThisTime;
-
-    sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, (int) (pvfb - vfbScreens));
-    if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666)))
-    {
-	perror("open");
-	ErrorF("open %s failed, %s", pvfb->mmap_file, strerror(errno));
-	return;
-    }
-
-    /* Extend the file to be the proper size */
-
-    bzero(dummyBuffer, DUMMY_BUFFER_SIZE);
-    for (currentFileSize = 0;
-	 currentFileSize < pvfb->sizeInBytes;
-	 currentFileSize += writeThisTime)
-    {
-	writeThisTime = min(DUMMY_BUFFER_SIZE,
-			    pvfb->sizeInBytes - currentFileSize);
-	if (-1 == write(pvfb->mmap_fd, dummyBuffer, writeThisTime))
-	{
-	    perror("write");
-	    ErrorF("write %s failed, %s", pvfb->mmap_file, strerror(errno));
-	    return;
-	}
-    }
-
-    /* try to mmap the file */
-
-    pvfb->pXWDHeader = (XWDFileHeader *)mmap((caddr_t)NULL, pvfb->sizeInBytes,
-				    PROT_READ|PROT_WRITE,
-				    MAP_FILE|MAP_SHARED,
-				    pvfb->mmap_fd, 0);
-    if (-1 == (long)pvfb->pXWDHeader)
-    {
-	perror("mmap");
-	ErrorF("mmap %s failed, %s", pvfb->mmap_file, strerror(errno));
-	pvfb->pXWDHeader = NULL;
-	return;
-    }
-
-    if (!RegisterBlockAndWakeupHandlers(vfbBlockHandler, vfbWakeupHandler,
-					NULL))
-    {
-	pvfb->pXWDHeader = NULL;
-    }
-}
-#endif /* HAS_MMAP */
-
-
-#ifdef HAS_SHM
-static void
-vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb)
-{
-    /* create the shared memory segment */
-
-    pvfb->shmid = shmget(IPC_PRIVATE, pvfb->sizeInBytes, IPC_CREAT|0777);
-    if (pvfb->shmid < 0)
-    {
-	perror("shmget");
-	ErrorF("shmget %d bytes failed, %s", pvfb->sizeInBytes, strerror(errno));
-	return;
-    }
-
-    /* try to attach it */
-
-    pvfb->pXWDHeader = (XWDFileHeader *)shmat(pvfb->shmid, 0, 0);
-    if (-1 == (long)pvfb->pXWDHeader)
-    {
-	perror("shmat");
-	ErrorF("shmat failed, %s", strerror(errno));
-	pvfb->pXWDHeader = NULL; 
-	return;
-    }
-
-    ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid);
-}
-#endif /* HAS_SHM */
-
-static char *
-vfbAllocateFramebufferMemory(vfbScreenInfoPtr pvfb)
-{
-    if (pvfb->pfbMemory) return pvfb->pfbMemory; /* already done */
-
-    pvfb->sizeInBytes = pvfb->paddedBytesWidth * pvfb->height;
-
-    /* Calculate how many entries in colormap.  This is rather bogus, because
-     * the visuals haven't even been set up yet, but we need to know because we
-     * have to allocate space in the file for the colormap.  The number 10
-     * below comes from the MAX_PSEUDO_DEPTH define in cfbcmap.c.
-     */
-
-    if (pvfb->depth <= 10)
-    { /* single index colormaps */
-	pvfb->ncolors = 1 << pvfb->depth;
-    }
-    else
-    { /* decomposed colormaps */
-	int nplanes_per_color_component = pvfb->depth / 3;
-	if (pvfb->depth % 3) nplanes_per_color_component++;
-	pvfb->ncolors = 1 << nplanes_per_color_component;
-    }
-
-    /* add extra bytes for XWDFileHeader, window name, and colormap */
-
-    pvfb->sizeInBytes += SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN +
-		    pvfb->ncolors * SIZEOF(XWDColor);
-
-    pvfb->pXWDHeader = NULL; 
-    switch (fbmemtype)
-    {
-#ifdef HAS_MMAP
-    case MMAPPED_FILE_FB:  vfbAllocateMmappedFramebuffer(pvfb); break;
-#else
-    case MMAPPED_FILE_FB: break;
-#endif
-
-#ifdef HAS_SHM
-    case SHARED_MEMORY_FB: vfbAllocateSharedMemoryFramebuffer(pvfb); break;
-#else
-    case SHARED_MEMORY_FB: break;
-#endif
-
-    case NORMAL_MEMORY_FB:
-	pvfb->pXWDHeader = (XWDFileHeader *)Xalloc(pvfb->sizeInBytes);
-	break;
-    }
-
-    if (pvfb->pXWDHeader)
-    {
-	pvfb->pXWDCmap = (XWDColor *)((char *)pvfb->pXWDHeader
-				+ SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN);
-	pvfb->pfbMemory = (char *)(pvfb->pXWDCmap + pvfb->ncolors);
-
-	return pvfb->pfbMemory;
-    }
-    else
-	return NULL;
-}
-
-
-static void
-vfbWriteXWDFileHeader(ScreenPtr pScreen)
-{
-    vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];
-    XWDFileHeader *pXWDHeader = pvfb->pXWDHeader;
-    char hostname[XWD_WINDOW_NAME_LEN];
-    unsigned long swaptest = 1;
-    int i;
-
-    needswap = *(char *) &swaptest;
-
-    pXWDHeader->header_size = (char *)pvfb->pXWDCmap - (char *)pvfb->pXWDHeader;
-    pXWDHeader->file_version = XWD_FILE_VERSION;
-
-    pXWDHeader->pixmap_format = ZPixmap;
-    pXWDHeader->pixmap_depth = pvfb->depth;
-    pXWDHeader->pixmap_height = pXWDHeader->window_height = pvfb->height;
-    pXWDHeader->xoffset = 0;
-    pXWDHeader->byte_order = IMAGE_BYTE_ORDER;
-    pXWDHeader->bitmap_bit_order = BITMAP_BIT_ORDER;
-#ifndef INTERNAL_VS_EXTERNAL_PADDING
-    pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->width;
-    pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT;
-    pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD;
-#else
-    pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->paddedWidth;
-    pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT_PROTO;
-    pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD_PROTO;
-#endif
-    pXWDHeader->bits_per_pixel = pvfb->bitsPerPixel;
-    pXWDHeader->bytes_per_line = pvfb->paddedBytesWidth;
-    pXWDHeader->ncolors = pvfb->ncolors;
-
-    /* visual related fields are written when colormap is installed */
-
-    pXWDHeader->window_x = pXWDHeader->window_y = 0;
-    pXWDHeader->window_bdrwidth = 0;
-
-    /* write xwd "window" name: Xvfb hostname:server.screen */
-
-    if (-1 == gethostname(hostname, sizeof(hostname)))
-	hostname[0] = 0;
-    else
-	hostname[XWD_WINDOW_NAME_LEN-1] = 0;
-    sprintf((char *)(pXWDHeader+1), "Xvfb %s:%s.%d", hostname, display,
-	    pScreen->myNum);
-
-    /* write colormap pixel slot values */
-
-    for (i = 0; i < pvfb->ncolors; i++)
-    {
-	pvfb->pXWDCmap[i].pixel = i;
-    }
-
-    /* byte swap to most significant byte first */
-
-    if (needswap)
-    {
-	SwapLongs((CARD32 *)pXWDHeader, SIZEOF(XWDheader)/4);
-	for (i = 0; i < pvfb->ncolors; i++)
-	{
-	    register char n;
-	    swapl(&pvfb->pXWDCmap[i].pixel, n);
-	}
-    }
-}
-
-
-static Bool
-vfbCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)
-{
-    return FALSE;
-}
-
-static void
-vfbCrossScreen (ScreenPtr pScreen, Bool entering)
-{
-}
-
-static miPointerScreenFuncRec vfbPointerCursorFuncs =
-{
-    vfbCursorOffScreen,
-    vfbCrossScreen,
-    miPointerWarpCursor
-};
-
-static Bool
-vfbCloseScreen(int index, ScreenPtr pScreen)
-{
-    vfbScreenInfoPtr pvfb = &vfbScreens[index];
-    int i;
- 
-    pScreen->CloseScreen = pvfb->closeScreen;
-
-    /*
-     * XXX probably lots of stuff to clean.  For now,
-     * clear installed colormaps so that server reset works correctly.
-     */
-    for (i = 0; i < screenInfo.numScreens; i++)
-	SetInstalledColormap(screenInfo.screens[i], NULL);
-
-    return pScreen->CloseScreen(index, pScreen);
-}
-
-static Bool
-vfbScreenInit(int index, ScreenPtr pScreen, int argc, char **argv)
-{
-    vfbScreenInfoPtr pvfb = &vfbScreens[index];
-    int dpix = monitorResolution, dpiy = monitorResolution;
-    int ret;
-    char *pbits;
-    
-    if (dpix == 0)
-      dpix = 100;
-
-    if (dpiy == 0)
-      dpiy = 100;
-
-    pvfb->paddedBytesWidth = PixmapBytePad(pvfb->width, pvfb->depth);
-    pvfb->bitsPerPixel = vfbBitsPerPixel(pvfb->depth);
-    if (pvfb->bitsPerPixel >= 8 )
-	pvfb->paddedWidth = pvfb->paddedBytesWidth / (pvfb->bitsPerPixel / 8);
-    else
-	pvfb->paddedWidth = pvfb->paddedBytesWidth * 8;
-    pbits = vfbAllocateFramebufferMemory(pvfb);
-    if (!pbits) return FALSE;
-
-    switch (pvfb->depth) {
-    case 8:
-	miSetVisualTypesAndMasks (8,
-				  ((1 << StaticGray) |
-				   (1 << GrayScale) |
-				   (1 << StaticColor) |
-				   (1 << PseudoColor) |
-				   (1 << TrueColor) |
-				   (1 << DirectColor)),
-				  8, PseudoColor, 0, 0, 0);
-	break;
-    case 15:
-	miSetVisualTypesAndMasks (15,
-				  ((1 << TrueColor) |
-				   (1 << DirectColor)),
-				  8, TrueColor, 0x7c00, 0x03e0, 0x001f);
-	break;
-    case 16:
-	miSetVisualTypesAndMasks (16,
-				  ((1 << TrueColor) |
-				   (1 << DirectColor)),
-				  8, TrueColor, 0xf800, 0x07e0, 0x001f);
-	break;
-    case 24:
-	miSetVisualTypesAndMasks (24,
-				  ((1 << TrueColor) |
-				   (1 << DirectColor)),
-				  8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff);
-	break;
-    case 30:
-	miSetVisualTypesAndMasks (30,
-				  ((1 << TrueColor) |
-				   (1 << DirectColor)),
-				  10, TrueColor, 0x3ff00000, 0x000ffc00, 0x000003ff);
-	break;
-    }
-
-    miSetPixmapDepths ();
-
-    ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
-		       dpix, dpiy, pvfb->paddedWidth,pvfb->bitsPerPixel);
-    if (ret && Render) 
-	fbPictureInit (pScreen, 0, 0);
-
-    if (!ret) return FALSE;
-
-    miInitializeBackingStore(pScreen);
-
-    /*
-     * Circumvent the backing store that was just initialised.  This amounts
-     * to a truely bizarre way of initialising SaveDoomedAreas and friends.
-     */
-
-    pScreen->InstallColormap = vfbInstallColormap;
-    pScreen->UninstallColormap = vfbUninstallColormap;
-    pScreen->ListInstalledColormaps = vfbListInstalledColormaps;
-
-    pScreen->SaveScreen = vfbSaveScreen;
-    pScreen->StoreColors = vfbStoreColors;
-
-    miDCInitialize(pScreen, &vfbPointerCursorFuncs);
-
-    vfbWriteXWDFileHeader(pScreen);
-
-    pScreen->blackPixel = pvfb->blackPixel;
-    pScreen->whitePixel = pvfb->whitePixel;
-
-    ret = fbCreateDefColormap(pScreen);
-
-    miSetZeroLineBias(pScreen, pvfb->lineBias);
-
-    pvfb->closeScreen = pScreen->CloseScreen;
-    pScreen->CloseScreen = vfbCloseScreen;
-
-    return ret;
-
-} /* end vfbScreenInit */
-
-
-void
-InitOutput(ScreenInfo *screenInfo, int argc, char **argv)
-{
-    int i;
-    int NumFormats = 0;
-
-    /* initialize pixmap formats */
-
-    /* must have a pixmap depth to match every screen depth */
-    for (i = 0; i < vfbNumScreens; i++)
-    {
-	vfbPixmapDepths[vfbScreens[i].depth] = TRUE;
-    }
-
-    /* RENDER needs a good set of pixmaps. */
-    if (Render) {
-	vfbPixmapDepths[1] = TRUE;
-	vfbPixmapDepths[4] = TRUE;
-	vfbPixmapDepths[8] = TRUE;
-#if 0
-	vfbPixmapDepths[12] = TRUE;
-#endif
-/*	vfbPixmapDepths[15] = TRUE; */
-	vfbPixmapDepths[16] = TRUE;
-	vfbPixmapDepths[24] = TRUE;
-#if 0
-	vfbPixmapDepths[30] = TRUE;
-#endif
-	vfbPixmapDepths[32] = TRUE;
-    }
-
-    for (i = 1; i <= 32; i++)
-    {
-	if (vfbPixmapDepths[i])
-	{
-	    if (NumFormats >= MAXFORMATS)
-		FatalError ("MAXFORMATS is too small for this server\n");
-	    screenInfo->formats[NumFormats].depth = i;
-	    screenInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);
-	    screenInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;
-	    NumFormats++;
-	}
-    }
-
-    screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;
-    screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;
-    screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;
-    screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;
-    screenInfo->numPixmapFormats = NumFormats;
-
-    /* initialize screens */
-
-    if (vfbNumScreens < 1)
-    {
-	vfbScreens = &defaultScreenInfo;
-	vfbNumScreens = 1;
-    }
-    for (i = 0; i < vfbNumScreens; i++)
-    {
-	if (-1 == AddScreen(vfbScreenInit, argc, argv))
-	{
-	    FatalError("Couldn't add screen %d", i);
-	}
-    }
-
-} /* end InitOutput */
+/*

+

+Copyright 1993, 1998  The Open Group

+

+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.

+

+The above copyright notice and this permission notice shall be included

+in all copies or substantial portions of the Software.

+

+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

+IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR

+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,

+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

+OTHER DEALINGS IN THE SOFTWARE.

+

+Except as contained in this notice, the name of The Open Group shall

+not be used in advertising or otherwise to promote the sale, use or

+other dealings in this Software without prior written authorization

+from The Open Group.

+

+*/

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#if defined(WIN32)

+#include <X11/Xwinsock.h>

+#endif

+#include <stdio.h>

+#include <X11/X.h>

+#include <X11/Xproto.h>

+#include <X11/Xos.h>

+#include "scrnintstr.h"

+#include "servermd.h"

+#define PSZ 8

+#include "fb.h"

+#include "mibstore.h"

+#include "colormapst.h"

+#include "gcstruct.h"

+#include "input.h"

+#include "mipointer.h"

+#include "micmap.h"

+#include <sys/types.h>

+#ifdef HAS_MMAP

+#include <sys/mman.h>

+#ifndef MAP_FILE

+#define MAP_FILE 0

+#endif

+#endif /* HAS_MMAP */

+#include <sys/stat.h>

+#include <errno.h>

+#ifndef WIN32

+#include <sys/param.h>

+#endif

+#include <X11/XWDFile.h>

+#ifdef HAS_SHM

+#include <sys/ipc.h>

+#include <sys/shm.h>

+#endif /* HAS_SHM */

+#include "dix.h"

+#include "miline.h"

+

+#define VFB_DEFAULT_WIDTH      1280

+#define VFB_DEFAULT_HEIGHT     1024

+#define VFB_DEFAULT_DEPTH         8

+#define VFB_DEFAULT_WHITEPIXEL    1

+#define VFB_DEFAULT_BLACKPIXEL    0

+#define VFB_DEFAULT_LINEBIAS      0

+#define XWD_WINDOW_NAME_LEN      60

+

+typedef struct

+{

+    int width;

+    int paddedBytesWidth;

+    int paddedWidth;

+    int height;

+    int depth;

+    int bitsPerPixel;

+    int sizeInBytes;

+    int ncolors;

+    char *pfbMemory;

+    XWDColor *pXWDCmap;

+    XWDFileHeader *pXWDHeader;

+    Pixel blackPixel;

+    Pixel whitePixel;

+    unsigned int lineBias;

+    CloseScreenProcPtr closeScreen;

+

+#ifdef HAS_MMAP

+    int mmap_fd;

+    char mmap_file[MAXPATHLEN];

+#endif

+

+#ifdef HAS_SHM

+    int shmid;

+#endif

+} vfbScreenInfo, *vfbScreenInfoPtr;

+

+static int vfbNumScreens;

+static vfbScreenInfo *vfbScreens;

+static vfbScreenInfo defaultScreenInfo = {

+    .width  = VFB_DEFAULT_WIDTH,

+    .height = VFB_DEFAULT_HEIGHT,

+    .depth  = VFB_DEFAULT_DEPTH,

+    .blackPixel = VFB_DEFAULT_BLACKPIXEL,

+    .whitePixel = VFB_DEFAULT_WHITEPIXEL,

+    .lineBias = VFB_DEFAULT_LINEBIAS,

+};

+static Bool vfbPixmapDepths[33];

+#ifdef HAS_MMAP

+static char *pfbdir = NULL;

+#endif

+typedef enum { NORMAL_MEMORY_FB, SHARED_MEMORY_FB, MMAPPED_FILE_FB } fbMemType;

+static fbMemType fbmemtype = NORMAL_MEMORY_FB;

+static char needswap = 0;

+static Bool Render = TRUE;

+

+#define swapcopy16(_dst, _src) \

+    if (needswap) { CARD16 _s = _src; cpswaps(_s, _dst); } \

+    else _dst = _src;

+

+#define swapcopy32(_dst, _src) \

+    if (needswap) { CARD32 _s = _src; cpswapl(_s, _dst); } \

+    else _dst = _src;

+

+

+static void

+vfbInitializePixmapDepths(void)

+{

+    int i;

+    vfbPixmapDepths[1] = TRUE; /* always need bitmaps */

+    for (i = 2; i <= 32; i++)

+	vfbPixmapDepths[i] = FALSE;

+}

+

+static int

+vfbBitsPerPixel(int depth)

+{

+    if (depth == 1) return 1;

+    else if (depth <= 8) return 8;

+    else if (depth <= 16) return 16;

+    else return 32;

+}

+

+void

+ddxGiveUp(void)

+{

+    int i;

+

+    /* clean up the framebuffers */

+

+    switch (fbmemtype)

+    {

+#ifdef HAS_MMAP

+    case MMAPPED_FILE_FB: 

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

+	{

+	    if (-1 == unlink(vfbScreens[i].mmap_file))

+	    {

+		perror("unlink");

+		ErrorF("unlink %s failed, %s",

+		       vfbScreens[i].mmap_file, strerror(errno));

+	    }

+	}

+	break;

+#else /* HAS_MMAP */

+    case MMAPPED_FILE_FB:

+        break;

+#endif /* HAS_MMAP */

+	

+#ifdef HAS_SHM

+    case SHARED_MEMORY_FB:

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

+	{

+	    if (-1 == shmdt((char *)vfbScreens[i].pXWDHeader))

+	    {

+		perror("shmdt");

+		ErrorF("shmdt failed, %s", strerror(errno));

+	    }

+	}

+	break;

+#else /* HAS_SHM */

+    case SHARED_MEMORY_FB:

+        break;

+#endif /* HAS_SHM */

+	

+    case NORMAL_MEMORY_FB:

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

+	{

+	    free(vfbScreens[i].pXWDHeader);

+	}

+	break;

+    }

+}

+

+void

+AbortDDX(void)

+{

+    ddxGiveUp();

+}

+

+#ifdef __APPLE__

+void

+DarwinHandleGUI(int argc, char *argv[])

+{

+}

+#endif

+

+void

+OsVendorInit(void)

+{

+}

+

+void

+OsVendorFatalError(void)

+{

+}

+

+#if defined(DDXBEFORERESET)

+void ddxBeforeReset(void)

+{

+    return;

+}

+#endif

+

+void

+ddxUseMsg(void)

+{

+    ErrorF("-screen scrn WxHxD     set screen's width, height, depth\n");

+    ErrorF("-pixdepths list-of-int support given pixmap depths\n");

+    ErrorF("+/-render		   turn on/off RENDER extension support"

+	   "(default on)\n");

+    ErrorF("-linebias n            adjust thin line pixelization\n");

+    ErrorF("-blackpixel n          pixel value for black\n");

+    ErrorF("-whitepixel n          pixel value for white\n");

+

+#ifdef HAS_MMAP

+    ErrorF("-fbdir directory       put framebuffers in mmap'ed files in directory\n");

+#endif

+

+#ifdef HAS_SHM

+    ErrorF("-shmem                 put framebuffers in shared memory\n");

+#endif

+}

+

+int

+ddxProcessArgument(int argc, char *argv[], int i)

+{

+    static Bool firstTime = TRUE;

+    static int lastScreen = -1;

+    vfbScreenInfo *currentScreen;

+

+    if (firstTime)

+    {

+	vfbInitializePixmapDepths();

+        firstTime = FALSE;

+    }

+

+    if (lastScreen == -1)

+	currentScreen = &defaultScreenInfo;

+    else

+	currentScreen = &vfbScreens[lastScreen];

+

+#define CHECK_FOR_REQUIRED_ARGUMENTS(num) \

+    if (((i + num) >= argc) || (!argv[i + num])) {                      \

+      ErrorF("Required argument to %s not specified\n", argv[i]);       \

+      UseMsg();                                                         \

+      FatalError("Required argument to %s not specified\n", argv[i]);   \

+    }

+    

+    if (strcmp (argv[i], "-screen") == 0)	/* -screen n WxHxD */

+    {

+	int screenNum;

+	CHECK_FOR_REQUIRED_ARGUMENTS(2);

+	screenNum = atoi(argv[i+1]);

+	if (screenNum < 0)

+	{

+	    ErrorF("Invalid screen number %d\n", screenNum);

+	    UseMsg();

+	    FatalError("Invalid screen number %d passed to -screen\n",

+		       screenNum);

+	}

+

+	if (vfbNumScreens <= screenNum)

+	{

+	    vfbScreens = realloc(vfbScreens, sizeof(*vfbScreens) * (screenNum + 1));

+	    if (!vfbScreens)

+		FatalError("Not enough memory for screen %d\n", screenNum);

+	    for (; vfbNumScreens <= screenNum; ++vfbNumScreens)

+		vfbScreens[vfbNumScreens] = defaultScreenInfo;

+	}

+

+	if (3 != sscanf(argv[i+2], "%dx%dx%d",

+			&vfbScreens[screenNum].width,

+			&vfbScreens[screenNum].height,

+			&vfbScreens[screenNum].depth))

+	{

+	    ErrorF("Invalid screen configuration %s\n", argv[i+2]);

+	    UseMsg();

+	    FatalError("Invalid screen configuration %s for -screen %d\n",

+		   argv[i+2], screenNum);

+	}

+

+	lastScreen = screenNum;

+	return 3;

+    }

+

+    if (strcmp (argv[i], "-pixdepths") == 0)	/* -pixdepths list-of-depth */

+    {

+	int depth, ret = 1;

+

+	CHECK_FOR_REQUIRED_ARGUMENTS(1);

+	while ((++i < argc) && (depth = atoi(argv[i])) != 0)

+	{

+	    if (depth < 0 || depth > 32)

+	    {

+		ErrorF("Invalid pixmap depth %d\n", depth);

+		UseMsg();

+		FatalError("Invalid pixmap depth %d passed to -pixdepths\n",

+			   depth);

+	    }

+	    vfbPixmapDepths[depth] = TRUE;

+	    ret++;

+	}

+	return ret;

+    }

+

+    if (strcmp (argv[i], "+render") == 0)	/* +render */

+    {

+	Render = TRUE;

+	return 1;

+    }

+

+    if (strcmp (argv[i], "-render") == 0)	/* -render */

+    {

+	Render = FALSE;

+#ifdef COMPOSITE

+	noCompositeExtension = TRUE;

+#endif

+	return 1;

+    }

+

+    if (strcmp (argv[i], "-blackpixel") == 0)	/* -blackpixel n */

+    {

+	CHECK_FOR_REQUIRED_ARGUMENTS(1);

+	currentScreen->blackPixel = atoi(argv[++i]);

+	return 2;

+    }

+

+    if (strcmp (argv[i], "-whitepixel") == 0)	/* -whitepixel n */

+    {

+	CHECK_FOR_REQUIRED_ARGUMENTS(1);

+	currentScreen->whitePixel = atoi(argv[++i]);

+	return 2;

+    }

+

+    if (strcmp (argv[i], "-linebias") == 0)	/* -linebias n */

+    {

+	CHECK_FOR_REQUIRED_ARGUMENTS(1);

+	currentScreen->lineBias = atoi(argv[++i]);

+	return 2;

+    }

+

+#ifdef HAS_MMAP

+    if (strcmp (argv[i], "-fbdir") == 0)	/* -fbdir directory */

+    {

+	CHECK_FOR_REQUIRED_ARGUMENTS(1);

+	pfbdir = argv[++i];

+	fbmemtype = MMAPPED_FILE_FB;

+	return 2;

+    }

+#endif /* HAS_MMAP */

+

+#ifdef HAS_SHM

+    if (strcmp (argv[i], "-shmem") == 0)	/* -shmem */

+    {

+	fbmemtype = SHARED_MEMORY_FB;

+	return 1;

+    }

+#endif

+

+    return 0;

+}

+

+static int cmapScrPrivateKeyIndex;

+static DevPrivateKey cmapScrPrivateKey = &cmapScrPrivateKeyIndex;

+

+#define GetInstalledColormap(s) ((ColormapPtr) dixLookupPrivate(&(s)->devPrivates, cmapScrPrivateKey))

+#define SetInstalledColormap(s,c) (dixSetPrivate(&(s)->devPrivates, cmapScrPrivateKey, c))

+

+static int

+vfbListInstalledColormaps(ScreenPtr pScreen, Colormap *pmaps)

+{

+    /* By the time we are processing requests, we can guarantee that there

+     * is always a colormap installed */

+    *pmaps = GetInstalledColormap(pScreen)->mid;

+    return (1);

+}

+

+

+static void

+vfbInstallColormap(ColormapPtr pmap)

+{

+    ColormapPtr oldpmap = GetInstalledColormap(pmap->pScreen);

+

+    if (pmap != oldpmap)

+    {

+	int entries;

+	XWDFileHeader *pXWDHeader;

+	XWDColor *pXWDCmap;

+	VisualPtr pVisual;

+	Pixel *     ppix;

+	xrgb *      prgb;

+	xColorItem *defs;

+	int i;

+

+	if(oldpmap != (ColormapPtr)None)

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

+	/* Install pmap */

+	SetInstalledColormap(pmap->pScreen, pmap);

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

+

+	entries = pmap->pVisual->ColormapEntries;

+	pXWDHeader = vfbScreens[pmap->pScreen->myNum].pXWDHeader;

+	pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;

+	pVisual = pmap->pVisual;

+

+	swapcopy32(pXWDHeader->visual_class, pVisual->class);

+	swapcopy32(pXWDHeader->red_mask, pVisual->redMask);

+	swapcopy32(pXWDHeader->green_mask, pVisual->greenMask);

+	swapcopy32(pXWDHeader->blue_mask, pVisual->blueMask);

+	swapcopy32(pXWDHeader->bits_per_rgb, pVisual->bitsPerRGBValue);

+	swapcopy32(pXWDHeader->colormap_entries, pVisual->ColormapEntries);

+

+	ppix = (Pixel *)malloc(entries * sizeof(Pixel));

+	prgb = (xrgb *)malloc(entries * sizeof(xrgb));

+	defs = (xColorItem *)malloc(entries * sizeof(xColorItem));

+

+	for (i = 0; i < entries; i++)  ppix[i] = i;

+	/* XXX truecolor */

+	QueryColors(pmap, entries, ppix, prgb, serverClient);

+

+	for (i = 0; i < entries; i++) { /* convert xrgbs to xColorItems */

+	    defs[i].pixel = ppix[i] & 0xff; /* change pixel to index */

+	    defs[i].red = prgb[i].red;

+	    defs[i].green = prgb[i].green;

+	    defs[i].blue = prgb[i].blue;

+	    defs[i].flags =  DoRed|DoGreen|DoBlue;

+	}

+	(*pmap->pScreen->StoreColors)(pmap, entries, defs);

+

+	free(ppix);

+	free(prgb);

+	free(defs);

+    }

+}

+

+static void

+vfbUninstallColormap(ColormapPtr pmap)

+{

+    ColormapPtr curpmap = GetInstalledColormap(pmap->pScreen);

+

+    if(pmap == curpmap)

+    {

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

+	{

+	    dixLookupResourceByType((pointer *)&curpmap,

+				    pmap->pScreen->defColormap,

+				    RT_COLORMAP, serverClient,

+				    DixInstallAccess);

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

+	}

+    }

+}

+

+static void

+vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs)

+{

+    XWDColor *pXWDCmap;

+    int i;

+

+    if (pmap != GetInstalledColormap(pmap->pScreen))

+    {

+	return;

+    }

+

+    pXWDCmap = vfbScreens[pmap->pScreen->myNum].pXWDCmap;

+

+    if ((pmap->pVisual->class | DynamicClass) == DirectColor)

+    {

+	return;

+    }

+

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

+    {

+	if (pdefs[i].flags & DoRed)

+	{

+	    swapcopy16(pXWDCmap[pdefs[i].pixel].red, pdefs[i].red);

+	}

+	if (pdefs[i].flags & DoGreen)

+	{

+	    swapcopy16(pXWDCmap[pdefs[i].pixel].green, pdefs[i].green);

+	}

+	if (pdefs[i].flags & DoBlue)

+	{

+	    swapcopy16(pXWDCmap[pdefs[i].pixel].blue, pdefs[i].blue);

+	}

+    }

+}

+

+static Bool

+vfbSaveScreen(ScreenPtr pScreen, int on)

+{

+    return TRUE;

+}

+

+#ifdef HAS_MMAP

+

+/* this flushes any changes to the screens out to the mmapped file */

+static void

+vfbBlockHandler(pointer blockData, OSTimePtr pTimeout, pointer pReadmask)

+{

+    int i;

+

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

+    {

+#ifdef MS_ASYNC

+	if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,

+			(size_t)vfbScreens[i].sizeInBytes, MS_ASYNC))

+#else

+	/* silly NetBSD and who else? */

+	if (-1 == msync((caddr_t)vfbScreens[i].pXWDHeader,

+			(size_t)vfbScreens[i].sizeInBytes))

+#endif

+	{

+	    perror("msync");

+	    ErrorF("msync failed, %s", strerror(errno));

+	}

+    }

+}

+

+

+static void

+vfbWakeupHandler(pointer blockData, int result, pointer pReadmask)

+{

+}

+

+

+static void

+vfbAllocateMmappedFramebuffer(vfbScreenInfoPtr pvfb)

+{

+#define DUMMY_BUFFER_SIZE 65536

+    char dummyBuffer[DUMMY_BUFFER_SIZE];

+    int currentFileSize, writeThisTime;

+

+    sprintf(pvfb->mmap_file, "%s/Xvfb_screen%d", pfbdir, (int) (pvfb - vfbScreens));

+    if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666)))

+    {

+	perror("open");

+	ErrorF("open %s failed, %s", pvfb->mmap_file, strerror(errno));

+	return;

+    }

+

+    /* Extend the file to be the proper size */

+

+    bzero(dummyBuffer, DUMMY_BUFFER_SIZE);

+    for (currentFileSize = 0;

+	 currentFileSize < pvfb->sizeInBytes;

+	 currentFileSize += writeThisTime)

+    {

+	writeThisTime = min(DUMMY_BUFFER_SIZE,

+			    pvfb->sizeInBytes - currentFileSize);

+	if (-1 == write(pvfb->mmap_fd, dummyBuffer, writeThisTime))

+	{

+	    perror("write");

+	    ErrorF("write %s failed, %s", pvfb->mmap_file, strerror(errno));

+	    return;

+	}

+    }

+

+    /* try to mmap the file */

+

+    pvfb->pXWDHeader = (XWDFileHeader *)mmap((caddr_t)NULL, pvfb->sizeInBytes,

+				    PROT_READ|PROT_WRITE,

+				    MAP_FILE|MAP_SHARED,

+				    pvfb->mmap_fd, 0);

+    if (-1 == (long)pvfb->pXWDHeader)

+    {

+	perror("mmap");

+	ErrorF("mmap %s failed, %s", pvfb->mmap_file, strerror(errno));

+	pvfb->pXWDHeader = NULL;

+	return;

+    }

+

+    if (!RegisterBlockAndWakeupHandlers(vfbBlockHandler, vfbWakeupHandler,

+					NULL))

+    {

+	pvfb->pXWDHeader = NULL;

+    }

+}

+#endif /* HAS_MMAP */

+

+

+#ifdef HAS_SHM

+static void

+vfbAllocateSharedMemoryFramebuffer(vfbScreenInfoPtr pvfb)

+{

+    /* create the shared memory segment */

+

+    pvfb->shmid = shmget(IPC_PRIVATE, pvfb->sizeInBytes, IPC_CREAT|0777);

+    if (pvfb->shmid < 0)

+    {

+	perror("shmget");

+	ErrorF("shmget %d bytes failed, %s", pvfb->sizeInBytes, strerror(errno));

+	return;

+    }

+

+    /* try to attach it */

+

+    pvfb->pXWDHeader = (XWDFileHeader *)shmat(pvfb->shmid, 0, 0);

+    if (-1 == (long)pvfb->pXWDHeader)

+    {

+	perror("shmat");

+	ErrorF("shmat failed, %s", strerror(errno));

+	pvfb->pXWDHeader = NULL; 

+	return;

+    }

+

+    ErrorF("screen %d shmid %d\n", (int) (pvfb - vfbScreens), pvfb->shmid);

+}

+#endif /* HAS_SHM */

+

+static char *

+vfbAllocateFramebufferMemory(vfbScreenInfoPtr pvfb)

+{

+    if (pvfb->pfbMemory) return pvfb->pfbMemory; /* already done */

+

+    pvfb->sizeInBytes = pvfb->paddedBytesWidth * pvfb->height;

+

+    /* Calculate how many entries in colormap.  This is rather bogus, because

+     * the visuals haven't even been set up yet, but we need to know because we

+     * have to allocate space in the file for the colormap.  The number 10

+     * below comes from the MAX_PSEUDO_DEPTH define in cfbcmap.c.

+     */

+

+    if (pvfb->depth <= 10)

+    { /* single index colormaps */

+	pvfb->ncolors = 1 << pvfb->depth;

+    }

+    else

+    { /* decomposed colormaps */

+	int nplanes_per_color_component = pvfb->depth / 3;

+	if (pvfb->depth % 3) nplanes_per_color_component++;

+	pvfb->ncolors = 1 << nplanes_per_color_component;

+    }

+

+    /* add extra bytes for XWDFileHeader, window name, and colormap */

+

+    pvfb->sizeInBytes += SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN +

+		    pvfb->ncolors * SIZEOF(XWDColor);

+

+    pvfb->pXWDHeader = NULL; 

+    switch (fbmemtype)

+    {

+#ifdef HAS_MMAP

+    case MMAPPED_FILE_FB:  vfbAllocateMmappedFramebuffer(pvfb); break;

+#else

+    case MMAPPED_FILE_FB: break;

+#endif

+

+#ifdef HAS_SHM

+    case SHARED_MEMORY_FB: vfbAllocateSharedMemoryFramebuffer(pvfb); break;

+#else

+    case SHARED_MEMORY_FB: break;

+#endif

+

+    case NORMAL_MEMORY_FB:

+	pvfb->pXWDHeader = (XWDFileHeader *)malloc(pvfb->sizeInBytes);

+	break;

+    }

+

+    if (pvfb->pXWDHeader)

+    {

+	pvfb->pXWDCmap = (XWDColor *)((char *)pvfb->pXWDHeader

+				+ SIZEOF(XWDheader) + XWD_WINDOW_NAME_LEN);

+	pvfb->pfbMemory = (char *)(pvfb->pXWDCmap + pvfb->ncolors);

+

+	return pvfb->pfbMemory;

+    }

+    else

+	return NULL;

+}

+

+

+static void

+vfbWriteXWDFileHeader(ScreenPtr pScreen)

+{

+    vfbScreenInfoPtr pvfb = &vfbScreens[pScreen->myNum];

+    XWDFileHeader *pXWDHeader = pvfb->pXWDHeader;

+    char hostname[XWD_WINDOW_NAME_LEN];

+    unsigned long swaptest = 1;

+    int i;

+

+    needswap = *(char *) &swaptest;

+

+    pXWDHeader->header_size = (char *)pvfb->pXWDCmap - (char *)pvfb->pXWDHeader;

+    pXWDHeader->file_version = XWD_FILE_VERSION;

+

+    pXWDHeader->pixmap_format = ZPixmap;

+    pXWDHeader->pixmap_depth = pvfb->depth;

+    pXWDHeader->pixmap_height = pXWDHeader->window_height = pvfb->height;

+    pXWDHeader->xoffset = 0;

+    pXWDHeader->byte_order = IMAGE_BYTE_ORDER;

+    pXWDHeader->bitmap_bit_order = BITMAP_BIT_ORDER;

+#ifndef INTERNAL_VS_EXTERNAL_PADDING

+    pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->width;

+    pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT;

+    pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD;

+#else

+    pXWDHeader->pixmap_width = pXWDHeader->window_width = pvfb->paddedWidth;

+    pXWDHeader->bitmap_unit = BITMAP_SCANLINE_UNIT_PROTO;

+    pXWDHeader->bitmap_pad = BITMAP_SCANLINE_PAD_PROTO;

+#endif

+    pXWDHeader->bits_per_pixel = pvfb->bitsPerPixel;

+    pXWDHeader->bytes_per_line = pvfb->paddedBytesWidth;

+    pXWDHeader->ncolors = pvfb->ncolors;

+

+    /* visual related fields are written when colormap is installed */

+

+    pXWDHeader->window_x = pXWDHeader->window_y = 0;

+    pXWDHeader->window_bdrwidth = 0;

+

+    /* write xwd "window" name: Xvfb hostname:server.screen */

+

+    if (-1 == gethostname(hostname, sizeof(hostname)))

+	hostname[0] = 0;

+    else

+	hostname[XWD_WINDOW_NAME_LEN-1] = 0;

+    sprintf((char *)(pXWDHeader+1), "Xvfb %s:%s.%d", hostname, display,

+	    pScreen->myNum);

+

+    /* write colormap pixel slot values */

+

+    for (i = 0; i < pvfb->ncolors; i++)

+    {

+	pvfb->pXWDCmap[i].pixel = i;

+    }

+

+    /* byte swap to most significant byte first */

+

+    if (needswap)

+    {

+	SwapLongs((CARD32 *)pXWDHeader, SIZEOF(XWDheader)/4);

+	for (i = 0; i < pvfb->ncolors; i++)

+	{

+	    register char n;

+	    swapl(&pvfb->pXWDCmap[i].pixel, n);

+	}

+    }

+}

+

+

+static Bool

+vfbCursorOffScreen (ScreenPtr *ppScreen, int *x, int *y)

+{

+    return FALSE;

+}

+

+static void

+vfbCrossScreen (ScreenPtr pScreen, Bool entering)

+{

+}

+

+static miPointerScreenFuncRec vfbPointerCursorFuncs =

+{

+    vfbCursorOffScreen,

+    vfbCrossScreen,

+    miPointerWarpCursor

+};

+

+static Bool

+vfbCloseScreen(int index, ScreenPtr pScreen)

+{

+    vfbScreenInfoPtr pvfb = &vfbScreens[index];

+    int i;

+ 

+    pScreen->CloseScreen = pvfb->closeScreen;

+

+    /*

+     * XXX probably lots of stuff to clean.  For now,

+     * clear installed colormaps so that server reset works correctly.

+     */

+    for (i = 0; i < screenInfo.numScreens; i++)

+	SetInstalledColormap(screenInfo.screens[i], NULL);

+

+    return pScreen->CloseScreen(index, pScreen);

+}

+

+static Bool

+vfbScreenInit(int index, ScreenPtr pScreen, int argc, char **argv)

+{

+    vfbScreenInfoPtr pvfb = &vfbScreens[index];

+    int dpix = monitorResolution, dpiy = monitorResolution;

+    int ret;

+    char *pbits;

+    

+    if (dpix == 0)

+      dpix = 100;

+

+    if (dpiy == 0)

+      dpiy = 100;

+

+    pvfb->paddedBytesWidth = PixmapBytePad(pvfb->width, pvfb->depth);

+    pvfb->bitsPerPixel = vfbBitsPerPixel(pvfb->depth);

+    if (pvfb->bitsPerPixel >= 8 )

+	pvfb->paddedWidth = pvfb->paddedBytesWidth / (pvfb->bitsPerPixel / 8);

+    else

+	pvfb->paddedWidth = pvfb->paddedBytesWidth * 8;

+    pbits = vfbAllocateFramebufferMemory(pvfb);

+    if (!pbits) return FALSE;

+

+    switch (pvfb->depth) {

+    case 8:

+	miSetVisualTypesAndMasks (8,

+				  ((1 << StaticGray) |

+				   (1 << GrayScale) |

+				   (1 << StaticColor) |

+				   (1 << PseudoColor) |

+				   (1 << TrueColor) |

+				   (1 << DirectColor)),

+				  8, PseudoColor, 0, 0, 0);

+	break;

+    case 15:

+	miSetVisualTypesAndMasks (15,

+				  ((1 << TrueColor) |

+				   (1 << DirectColor)),

+				  8, TrueColor, 0x7c00, 0x03e0, 0x001f);

+	break;

+    case 16:

+	miSetVisualTypesAndMasks (16,

+				  ((1 << TrueColor) |

+				   (1 << DirectColor)),

+				  8, TrueColor, 0xf800, 0x07e0, 0x001f);

+	break;

+    case 24:

+	miSetVisualTypesAndMasks (24,

+				  ((1 << TrueColor) |

+				   (1 << DirectColor)),

+				  8, TrueColor, 0xff0000, 0x00ff00, 0x0000ff);

+	break;

+    case 30:

+	miSetVisualTypesAndMasks (30,

+				  ((1 << TrueColor) |

+				   (1 << DirectColor)),

+				  10, TrueColor, 0x3ff00000, 0x000ffc00, 0x000003ff);

+	break;

+    }

+

+    miSetPixmapDepths ();

+

+    ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,

+		       dpix, dpiy, pvfb->paddedWidth,pvfb->bitsPerPixel);

+    if (ret && Render) 

+	fbPictureInit (pScreen, 0, 0);

+

+    if (!ret) return FALSE;

+

+    miInitializeBackingStore(pScreen);

+

+    /*

+     * Circumvent the backing store that was just initialised.  This amounts

+     * to a truely bizarre way of initialising SaveDoomedAreas and friends.

+     */

+

+    pScreen->InstallColormap = vfbInstallColormap;

+    pScreen->UninstallColormap = vfbUninstallColormap;

+    pScreen->ListInstalledColormaps = vfbListInstalledColormaps;

+

+    pScreen->SaveScreen = vfbSaveScreen;

+    pScreen->StoreColors = vfbStoreColors;

+

+    miDCInitialize(pScreen, &vfbPointerCursorFuncs);

+

+    vfbWriteXWDFileHeader(pScreen);

+

+    pScreen->blackPixel = pvfb->blackPixel;

+    pScreen->whitePixel = pvfb->whitePixel;

+

+    ret = fbCreateDefColormap(pScreen);

+

+    miSetZeroLineBias(pScreen, pvfb->lineBias);

+

+    pvfb->closeScreen = pScreen->CloseScreen;

+    pScreen->CloseScreen = vfbCloseScreen;

+

+    return ret;

+

+} /* end vfbScreenInit */

+

+

+void

+InitOutput(ScreenInfo *screenInfo, int argc, char **argv)

+{

+    int i;

+    int NumFormats = 0;

+

+    /* initialize pixmap formats */

+

+    /* must have a pixmap depth to match every screen depth */

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

+    {

+	vfbPixmapDepths[vfbScreens[i].depth] = TRUE;

+    }

+

+    /* RENDER needs a good set of pixmaps. */

+    if (Render) {

+	vfbPixmapDepths[1] = TRUE;

+	vfbPixmapDepths[4] = TRUE;

+	vfbPixmapDepths[8] = TRUE;

+#if 0

+	vfbPixmapDepths[12] = TRUE;

+#endif

+/*	vfbPixmapDepths[15] = TRUE; */

+	vfbPixmapDepths[16] = TRUE;

+	vfbPixmapDepths[24] = TRUE;

+#if 0

+	vfbPixmapDepths[30] = TRUE;

+#endif

+	vfbPixmapDepths[32] = TRUE;

+    }

+

+    for (i = 1; i <= 32; i++)

+    {

+	if (vfbPixmapDepths[i])

+	{

+	    if (NumFormats >= MAXFORMATS)

+		FatalError ("MAXFORMATS is too small for this server\n");

+	    screenInfo->formats[NumFormats].depth = i;

+	    screenInfo->formats[NumFormats].bitsPerPixel = vfbBitsPerPixel(i);

+	    screenInfo->formats[NumFormats].scanlinePad = BITMAP_SCANLINE_PAD;

+	    NumFormats++;

+	}

+    }

+

+    screenInfo->imageByteOrder = IMAGE_BYTE_ORDER;

+    screenInfo->bitmapScanlineUnit = BITMAP_SCANLINE_UNIT;

+    screenInfo->bitmapScanlinePad = BITMAP_SCANLINE_PAD;

+    screenInfo->bitmapBitOrder = BITMAP_BIT_ORDER;

+    screenInfo->numPixmapFormats = NumFormats;

+

+    /* initialize screens */

+

+    if (vfbNumScreens < 1)

+    {

+	vfbScreens = &defaultScreenInfo;

+	vfbNumScreens = 1;

+    }

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

+    {

+	if (-1 == AddScreen(vfbScreenInit, argc, argv))

+	{

+	    FatalError("Couldn't add screen %d", i);

+	}

+    }

+

+} /* end InitOutput */