Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 1046 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/vfb/InitOutput.c b/nx-X11/programs/Xserver/hw/vfb/InitOutput.c
new file mode 100644
index 000000000..630d3e133
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/vfb/InitOutput.c
@@ -0,0 +1,1046 @@
+/* $Xorg: InitOutput.c,v 1.4 2001/02/09 02:04:45 xorgcvs Exp $ */
+/*
+
+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.
+
+*/
+/* $XFree86: xc/programs/Xserver/hw/vfb/InitOutput.c,v 3.25 2003/11/15 04:01:56 dawes Exp $ */
+
+#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>
+#define NEED_EVENTS
+#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 scrnum;
+    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[MAXSCREENS];
+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 int lastScreen = -1;
+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 void
+vfbInitializeDefaultScreens(void)
+{
+    int i;
+
+    for (i = 0; i < MAXSCREENS; i++)
+    {
+	vfbScreens[i].scrnum = i;
+	vfbScreens[i].width  = VFB_DEFAULT_WIDTH;
+	vfbScreens[i].height = VFB_DEFAULT_HEIGHT;
+	vfbScreens[i].depth  = VFB_DEFAULT_DEPTH;
+	vfbScreens[i].blackPixel = VFB_DEFAULT_BLACKPIXEL;
+	vfbScreens[i].whitePixel = VFB_DEFAULT_WHITEPIXEL;
+	vfbScreens[i].lineBias = VFB_DEFAULT_LINEBIAS;
+	vfbScreens[i].pfbMemory = NULL;
+    }
+    vfbNumScreens = 1;
+}
+
+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()
+{
+    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, errno %d",
+		       vfbScreens[i].mmap_file, 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, errno %d", 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()
+{
+    ddxGiveUp();
+}
+
+#ifdef __DARWIN__
+void
+DarwinHandleGUI(int argc, char *argv[])
+{
+}
+
+void GlxExtensionInit();
+void GlxWrapInitVisuals(void *procPtr);
+
+void
+DarwinGlxExtensionInit()
+{
+    GlxExtensionInit();
+}
+
+void
+DarwinGlxWrapInitVisuals(
+    void *procPtr)
+{
+    GlxWrapInitVisuals(procPtr);
+}
+#endif
+
+void
+OsVendorInit()
+{
+}
+
+void
+OsVendorFatalError()
+{
+}
+
+void ddxBeforeReset(void)
+{
+    return;
+}
+
+void
+ddxUseMsg()
+{
+    ErrorF("-screen scrn WxHxD     set screen's width, height, depth\n");
+    ErrorF("-pixdepths list-of-int support given pixmap depths\n");
+#ifdef RENDER
+    ErrorF("+/-render		   turn on/of RENDER extension support"
+	   "(default on)\n");
+#endif
+    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
+}
+
+/* ddxInitGlobals - called by |InitGlobals| from os/util.c */
+void ddxInitGlobals(void)
+{
+}
+
+int
+ddxProcessArgument(int argc, char *argv[], int i)
+{
+    static Bool firstTime = TRUE;
+
+    if (firstTime)
+    {
+	vfbInitializeDefaultScreens();
+	vfbInitializePixmapDepths();
+        firstTime = FALSE;
+    }
+
+    if (strcmp (argv[i], "-screen") == 0)	/* -screen n WxHxD */
+    {
+	int screenNum;
+	if (i + 2 >= argc) UseMsg();
+	screenNum = atoi(argv[i+1]);
+	if (screenNum < 0 || screenNum >= MAXSCREENS)
+	{
+	    ErrorF("Invalid screen number %d\n", screenNum);
+	    UseMsg();
+	}
+	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();
+	}
+
+	if (screenNum >= vfbNumScreens)
+	    vfbNumScreens = screenNum + 1;
+	lastScreen = screenNum;
+	return 3;
+    }
+
+    if (strcmp (argv[i], "-pixdepths") == 0)	/* -pixdepths list-of-depth */
+    {
+	int depth, ret = 1;
+
+	if (++i >= argc) UseMsg();
+	while ((i < argc) && (depth = atoi(argv[i++])) != 0)
+	{
+	    if (depth < 0 || depth > 32)
+	    {
+		ErrorF("Invalid pixmap depth %d\n", depth);
+		UseMsg();
+	    }
+	    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;
+	return 1;
+    }
+
+    if (strcmp (argv[i], "-blackpixel") == 0)	/* -blackpixel n */
+    {
+	Pixel pix;
+	if (++i >= argc) UseMsg();
+	pix = atoi(argv[i]);
+	if (-1 == lastScreen)
+	{
+	    int i;
+	    for (i = 0; i < MAXSCREENS; i++)
+	    {
+		vfbScreens[i].blackPixel = pix;
+	    }
+	}
+	else
+	{
+	    vfbScreens[lastScreen].blackPixel = pix;
+	}
+	return 2;
+    }
+
+    if (strcmp (argv[i], "-whitepixel") == 0)	/* -whitepixel n */
+    {
+	Pixel pix;
+	if (++i >= argc) UseMsg();
+	pix = atoi(argv[i]);
+	if (-1 == lastScreen)
+	{
+	    int i;
+	    for (i = 0; i < MAXSCREENS; i++)
+	    {
+		vfbScreens[i].whitePixel = pix;
+	    }
+	}
+	else
+	{
+	    vfbScreens[lastScreen].whitePixel = pix;
+	}
+	return 2;
+    }
+
+    if (strcmp (argv[i], "-linebias") == 0)	/* -linebias n */
+    {
+	unsigned int linebias;
+	if (++i >= argc) UseMsg();
+	linebias = atoi(argv[i]);
+	if (-1 == lastScreen)
+	{
+	    int i;
+	    for (i = 0; i < MAXSCREENS; i++)
+	    {
+		vfbScreens[i].lineBias = linebias;
+	    }
+	}
+	else
+	{
+	    vfbScreens[lastScreen].lineBias = linebias;
+	}
+	return 2;
+    }
+
+#ifdef HAS_MMAP
+    if (strcmp (argv[i], "-fbdir") == 0)	/* -fbdir directory */
+    {
+	if (++i >= argc) UseMsg();
+	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;
+}
+
+#ifdef DDXTIME /* from ServerOSDefines */
+CARD32
+GetTimeInMillis()
+{
+    struct timeval  tp;
+
+    X_GETTIMEOFDAY(&tp);
+    return(tp.tv_sec * 1000) + (tp.tv_usec / 1000);
+}
+#endif
+
+static ColormapPtr InstalledMaps[MAXSCREENS];
+
+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 = InstalledMaps[pScreen->myNum]->mid;
+    return (1);
+}
+
+
+static void
+vfbInstallColormap(ColormapPtr pmap)
+{
+    int index = pmap->pScreen->myNum;
+    ColormapPtr oldpmap = InstalledMaps[index];
+
+    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 */
+	InstalledMaps[index] = 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 *)ALLOCATE_LOCAL(entries * sizeof(Pixel));
+	prgb = (xrgb *)ALLOCATE_LOCAL(entries * sizeof(xrgb));
+	defs = (xColorItem *)ALLOCATE_LOCAL(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);
+
+	DEALLOCATE_LOCAL(ppix);
+	DEALLOCATE_LOCAL(prgb);
+	DEALLOCATE_LOCAL(defs);
+    }
+}
+
+static void
+vfbUninstallColormap(ColormapPtr pmap)
+{
+    ColormapPtr curpmap = InstalledMaps[pmap->pScreen->myNum];
+
+    if(pmap == curpmap)
+    {
+	if (pmap->mid != pmap->pScreen->defColormap)
+	{
+	    curpmap = (ColormapPtr) LookupIDByType(pmap->pScreen->defColormap,
+						   RT_COLORMAP);
+	    (*pmap->pScreen->InstallColormap)(curpmap);
+	}
+    }
+}
+
+static void
+vfbStoreColors(ColormapPtr pmap, int ndef, xColorItem *pdefs)
+{
+    XWDColor *pXWDCmap;
+    int i;
+
+    if (pmap != InstalledMaps[pmap->pScreen->myNum])
+    {
+	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, errno %d", 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, pvfb->scrnum);
+    if (-1 == (pvfb->mmap_fd = open(pvfb->mmap_file, O_CREAT|O_RDWR, 0666)))
+    {
+	perror("open");
+	ErrorF("open %s failed, errno %d", pvfb->mmap_file, 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, errno %d", pvfb->mmap_file, 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, errno %d", pvfb->mmap_file, 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, errno %d", pvfb->sizeInBytes, errno);
+	return;
+    }
+
+    /* try to attach it */
+
+    pvfb->pXWDHeader = (XWDFileHeader *)shmat(pvfb->shmid, 0, 0);
+    if (-1 == (long)pvfb->pXWDHeader)
+    {
+	perror("shmat");
+	ErrorF("shmat failed, errno %d", errno);
+	pvfb->pXWDHeader = NULL; 
+	return;
+    }
+
+    ErrorF("screen %d shmid %d\n", pvfb->scrnum, 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 InstalledMaps[] so that server reset works correctly.
+     */
+    for (i = 0; i < MAXSCREENS; i++)
+	InstalledMaps[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;
+
+    miSetPixmapDepths ();
+
+    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;
+#if 0
+    /* 12bit PseudoColor with 12bit color resolution
+     * (to simulate SGI hardware and the 12bit PseudoColor emulation layer) */
+    case 12:
+	miSetVisualTypesAndMasks (12,
+				  ((1 << StaticGray) |
+				   (1 << GrayScale) |
+				   (1 << StaticColor) |
+				   (1 << PseudoColor) |
+				   (1 << TrueColor) |
+				   (1 << DirectColor)),
+				  12, PseudoColor, 0, 0, 0);
+	break;
+#endif
+    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;
+#if 0
+    /* 30bit TrueColor (to simulate Sun's XVR-1000/-4000 high quality
+     * framebuffer series) */
+    case 30:
+	miSetVisualTypesAndMasks (30,
+				  ((1 << TrueColor) |
+				   (1 << DirectColor)),
+				  10, TrueColor, 0x3ff00000, 0x000ffc00, 0x000003ff);
+	break;
+#endif
+    }
+	
+    ret = fbScreenInit(pScreen, pbits, pvfb->width, pvfb->height,
+		       dpix, dpiy, pvfb->paddedWidth,pvfb->bitsPerPixel);
+#ifdef RENDER
+    if (ret && Render) 
+	fbPictureInit (pScreen, 0, 0);
+#endif
+
+    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 */
+
+    for (i = 0; i < vfbNumScreens; i++)
+    {
+	if (-1 == AddScreen(vfbScreenInit, argc, argv))
+	{
+	    FatalError("Couldn't add screen %d", i);
+	}
+    }
+
+} /* end InitOutput */
+
+/* this is just to get the server to link on AIX */
+#ifdef AIXV3
+int SelectWaitTime = 10000; /* usec */
+#endif
+