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-rw-r--r--xorg-server/dix/Xserver-dtrace.h75
-rw-r--r--xorg-server/dix/colormap.c5522
-rw-r--r--xorg-server/dix/dispatch.c8181
-rw-r--r--xorg-server/dix/dixfonts.c4206
-rw-r--r--xorg-server/dix/events.c11803
-rw-r--r--xorg-server/dix/getevents.c2424
-rw-r--r--xorg-server/dix/main.c740
-rw-r--r--xorg-server/dix/makefile40
-rw-r--r--xorg-server/dix/ptrveloc.c2389
-rw-r--r--xorg-server/dix/registry.c1
10 files changed, 17805 insertions, 17576 deletions
diff --git a/xorg-server/dix/Xserver-dtrace.h b/xorg-server/dix/Xserver-dtrace.h
new file mode 100644
index 000000000..0ced498af
--- /dev/null
+++ b/xorg-server/dix/Xserver-dtrace.h
@@ -0,0 +1,75 @@
+/* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, and/or sell copies of the Software, and to permit persons
+ * to whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ *
+ * 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
+ * OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR 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.
+ *
+ * Except as contained in this notice, the name of a copyright holder
+ * shall not be used in advertising or otherwise to promote the sale, use
+ * or other dealings in this Software without prior written authorization
+ * of the copyright holder.
+ */
+
+/*
+ * Generated by dtrace(1M), and then modified for backwards compatibility
+ * with older versions of dtrace. Used if dtrace -h fails.
+ * (Since _ENABLED support was added after dtrace -h, this assumes if
+ * dtrace -h fails, _ENABLED will too.)
+ */
+
+#ifndef _XSERVER_DTRACE_H
+#define _XSERVER_DTRACE_H
+
+#include <unistd.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define XSERVER_CLIENT_AUTH(arg0, arg1, arg2, arg3) \
+ winDebug4("XSERVER_CLIENT_AUTH: %d %s %d %d\n",arg0, arg1, arg2, arg3)
+#define XSERVER_CLIENT_CONNECT(arg0, arg1) \
+ winDebug4("XSERVER_CLIENT_CONNECT: %d %d\n",arg0, arg1)
+#define XSERVER_CLIENT_DISCONNECT(arg0) \
+ winDebug4("XSERVER_CLIENT_DISCONNECT: %d %d\n",arg0)
+#define XSERVER_REQUEST_DONE(arg0, arg1, arg2, arg3, arg4) \
+ winDebug4("XSERVER_REQUEST_DONE: %s %d %d %d %d\n",arg0, arg1, arg2, arg3, arg4)
+#define XSERVER_REQUEST_START(arg0, arg1, arg2, arg3, arg4) \
+ winDebug4("XSERVER_REQUEST_START: %s %d %d %d ->%p\n",arg0, arg1, arg2, arg3, arg4)
+#define XSERVER_RESOURCE_ALLOC(arg0, arg1, arg2, arg3) \
+ winDebug4("XSERVER_RESOURCE_ALLOC: 0x%x 0x%x ->%p %s\n",arg0, arg1, arg2, arg3)
+#define XSERVER_RESOURCE_FREE(arg0, arg1, arg2, arg3) \
+ winDebug4("XSERVER_RESOURCE_FREE: 0x%x 0x%x ->%p %s\n",arg0, arg1, arg2, arg3)
+#define XSERVER_SEND_EVENT(arg0, arg1, arg2) \
+ winDebug4("XSERVER_SEND_EVENT: 0x%x 0x%x ->%p\n",arg0, arg1, arg2)
+
+#define XSERVER_CLIENT_AUTH_ENABLED() (1)
+#define XSERVER_CLIENT_CONNECT_ENABLED() (1)
+#define XSERVER_CLIENT_DISCONNECT_ENABLED() (1)
+#define XSERVER_REQUEST_DONE_ENABLED() (1)
+#define XSERVER_REQUEST_START_ENABLED() (1)
+#define XSERVER_RESOURCE_ALLOC_ENABLED() (1)
+#define XSERVER_RESOURCE_FREE_ENABLED() (1)
+#define XSERVER_SEND_EVENT_ENABLED() (1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _XSERVER_DTRACE_H */
diff --git a/xorg-server/dix/colormap.c b/xorg-server/dix/colormap.c
index bf9794125..cd2101e4a 100644
--- a/xorg-server/dix/colormap.c
+++ b/xorg-server/dix/colormap.c
@@ -1,2759 +1,2763 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xproto.h>
-#include <stdio.h>
-#include <string.h>
-#include <strings.h>
-#include "misc.h"
-#include "dix.h"
-#include "colormapst.h"
-#include "os.h"
-#include "scrnintstr.h"
-#include "resource.h"
-#include "windowstr.h"
-#include "privates.h"
-#include "xace.h"
-
-extern XID clientErrorValue;
-
-static Pixel FindBestPixel(
- EntryPtr /*pentFirst*/,
- int /*size*/,
- xrgb * /*prgb*/,
- int /*channel*/
-);
-
-static int AllComp(
- EntryPtr /*pent*/,
- xrgb * /*prgb*/
-);
-
-static int RedComp(
- EntryPtr /*pent*/,
- xrgb * /*prgb*/
-);
-
-static int GreenComp(
- EntryPtr /*pent*/,
- xrgb * /*prgb*/
-);
-
-static int BlueComp(
- EntryPtr /*pent*/,
- xrgb * /*prgb*/
-);
-
-static void FreePixels(
- ColormapPtr /*pmap*/,
- int /*client*/
-);
-
-static void CopyFree(
- int /*channel*/,
- int /*client*/,
- ColormapPtr /*pmapSrc*/,
- ColormapPtr /*pmapDst*/
-);
-
-static void FreeCell(
- ColormapPtr /*pmap*/,
- Pixel /*i*/,
- int /*channel*/
-);
-
-static void UpdateColors(
- ColormapPtr /*pmap*/
-);
-
-static int AllocDirect(
- int /*client*/,
- ColormapPtr /*pmap*/,
- int /*c*/,
- int /*r*/,
- int /*g*/,
- int /*b*/,
- Bool /*contig*/,
- Pixel * /*pixels*/,
- Pixel * /*prmask*/,
- Pixel * /*pgmask*/,
- Pixel * /*pbmask*/
-);
-
-static int AllocPseudo(
- int /*client*/,
- ColormapPtr /*pmap*/,
- int /*c*/,
- int /*r*/,
- Bool /*contig*/,
- Pixel * /*pixels*/,
- Pixel * /*pmask*/,
- Pixel ** /*pppixFirst*/
-);
-
-static Bool AllocCP(
- ColormapPtr /*pmap*/,
- EntryPtr /*pentFirst*/,
- int /*count*/,
- int /*planes*/,
- Bool /*contig*/,
- Pixel * /*pixels*/,
- Pixel * /*pMask*/
-);
-
-static Bool AllocShared(
- ColormapPtr /*pmap*/,
- Pixel * /*ppix*/,
- int /*c*/,
- int /*r*/,
- int /*g*/,
- int /*b*/,
- Pixel /*rmask*/,
- Pixel /*gmask*/,
- Pixel /*bmask*/,
- Pixel * /*ppixFirst*/
-);
-
-static int FreeCo(
- ColormapPtr /*pmap*/,
- int /*client*/,
- int /*color*/,
- int /*npixIn*/,
- Pixel * /*ppixIn*/,
- Pixel /*mask*/
-);
-
-static int TellNoMap(
- WindowPtr /*pwin*/,
- Colormap * /*pmid*/
-);
-
-static void FindColorInRootCmap (
- ColormapPtr /* pmap */,
- EntryPtr /* pentFirst */,
- int /* size */,
- xrgb* /* prgb */,
- Pixel* /* pPixel */,
- int /* channel */,
- ColorCompareProcPtr /* comp */
-);
-
-#define NUMRED(vis) ((vis->redMask >> vis->offsetRed) + 1)
-#define NUMGREEN(vis) ((vis->greenMask >> vis->offsetGreen) + 1)
-#define NUMBLUE(vis) ((vis->blueMask >> vis->offsetBlue) + 1)
-#if COMPOSITE
-#define ALPHAMASK(vis) ((vis)->nplanes < 32 ? 0 : \
- (CARD32) ~((vis)->redMask|(vis)->greenMask|(vis)->blueMask))
-#else
-#define ALPHAMASK(vis) 0
-#endif
-
-#define RGBMASK(vis) (vis->redMask | vis->greenMask | vis->blueMask | ALPHAMASK(vis))
-
-/* GetNextBitsOrBreak(bits, mask, base) --
- * (Suggestion: First read the macro, then read this explanation.
- *
- * Either generate the next value to OR in to a pixel or break out of this
- * while loop
- *
- * This macro is used when we're trying to generate all 2^n combinations of
- * bits in mask. What we're doing here is counting in binary, except that
- * the bits we use to count may not be contiguous. This macro will be
- * called 2^n times, returning a different value in bits each time. Then
- * it will cause us to break out of a surrounding loop. (It will always be
- * called from within a while loop.)
- * On call: mask is the value we want to find all the combinations for
- * base has 1 bit set where the least significant bit of mask is set
- *
- * For example,if mask is 01010, base should be 0010 and we count like this:
- * 00010 (see this isn't so hard),
- * then we add base to bits and get 0100. (bits & ~mask) is (0100 & 0100) so
- * we add that to bits getting (0100 + 0100) =
- * 01000 for our next value.
- * then we add 0010 to get
- * 01010 and we're done (easy as 1, 2, 3)
- */
-#define GetNextBitsOrBreak(bits, mask, base) \
- if((bits) == (mask)) \
- break; \
- (bits) += (base); \
- while((bits) & ~(mask)) \
- (bits) += ((bits) & ~(mask));
-/* ID of server as client */
-#define SERVER_ID 0
-
-typedef struct _colorResource
-{
- Colormap mid;
- int client;
-} colorResource;
-
-/* Invariants:
- * refcnt == 0 means entry is empty
- * refcnt > 0 means entry is useable by many clients, so it can't be changed
- * refcnt == AllocPrivate means entry owned by one client only
- * fShared should only be set if refcnt == AllocPrivate, and only in red map
- */
-
-
-/**
- * Create and initialize the color map
- *
- * \param mid resource to use for this colormap
- * \param alloc 1 iff all entries are allocated writable
- */
-int
-CreateColormap (Colormap mid, ScreenPtr pScreen, VisualPtr pVisual,
- ColormapPtr *ppcmap, int alloc, int client)
-{
- int class, size;
- unsigned long sizebytes;
- ColormapPtr pmap;
- EntryPtr pent;
- int i;
- Pixel *ppix, **pptr;
-
- class = pVisual->class;
- if(!(class & DynamicClass) && (alloc != AllocNone) && (client != SERVER_ID))
- return (BadMatch);
-
- size = pVisual->ColormapEntries;
- sizebytes = (size * sizeof(Entry)) +
- (MAXCLIENTS * sizeof(Pixel *)) +
- (MAXCLIENTS * sizeof(int));
- if ((class | DynamicClass) == DirectColor)
- sizebytes *= 3;
- sizebytes += sizeof(ColormapRec);
- pmap = xalloc(sizebytes);
- if (!pmap)
- return (BadAlloc);
-#if defined(_XSERVER64)
- pmap->pad0 = 0;
- pmap->pad1 = 0;
-#if (X_BYTE_ORDER == X_LITTLE_ENDIAN)
- pmap->pad2 = 0;
-#endif
-#endif
- pmap->red = (EntryPtr)((char *)pmap + sizeof(ColormapRec));
- sizebytes = size * sizeof(Entry);
- pmap->clientPixelsRed = (Pixel **)((char *)pmap->red + sizebytes);
- pmap->numPixelsRed = (int *)((char *)pmap->clientPixelsRed +
- (MAXCLIENTS * sizeof(Pixel *)));
- pmap->mid = mid;
- pmap->flags = 0; /* start out with all flags clear */
- if(mid == pScreen->defColormap)
- pmap->flags |= IsDefault;
- pmap->pScreen = pScreen;
- pmap->pVisual = pVisual;
- pmap->class = class;
- if ((class | DynamicClass) == DirectColor)
- size = NUMRED(pVisual);
- pmap->freeRed = size;
- bzero ((char *) pmap->red, (int)sizebytes);
- bzero((char *) pmap->numPixelsRed, MAXCLIENTS * sizeof(int));
- for (pptr = &pmap->clientPixelsRed[MAXCLIENTS]; --pptr >= pmap->clientPixelsRed; )
- *pptr = (Pixel *)NULL;
- if (alloc == AllocAll)
- {
- if (class & DynamicClass)
- pmap->flags |= AllAllocated;
- for (pent = &pmap->red[size - 1]; pent >= pmap->red; pent--)
- pent->refcnt = AllocPrivate;
- pmap->freeRed = 0;
- ppix = xalloc(size * sizeof(Pixel));
- if (!ppix)
- {
- xfree(pmap);
- return (BadAlloc);
- }
- pmap->clientPixelsRed[client] = ppix;
- for(i = 0; i < size; i++)
- ppix[i] = i;
- pmap->numPixelsRed[client] = size;
- }
-
- if ((class | DynamicClass) == DirectColor)
- {
- pmap->freeGreen = NUMGREEN(pVisual);
- pmap->green = (EntryPtr)((char *)pmap->numPixelsRed +
- (MAXCLIENTS * sizeof(int)));
- pmap->clientPixelsGreen = (Pixel **)((char *)pmap->green + sizebytes);
- pmap->numPixelsGreen = (int *)((char *)pmap->clientPixelsGreen +
- (MAXCLIENTS * sizeof(Pixel *)));
- pmap->freeBlue = NUMBLUE(pVisual);
- pmap->blue = (EntryPtr)((char *)pmap->numPixelsGreen +
- (MAXCLIENTS * sizeof(int)));
- pmap->clientPixelsBlue = (Pixel **)((char *)pmap->blue + sizebytes);
- pmap->numPixelsBlue = (int *)((char *)pmap->clientPixelsBlue +
- (MAXCLIENTS * sizeof(Pixel *)));
-
- bzero ((char *) pmap->green, (int)sizebytes);
- bzero ((char *) pmap->blue, (int)sizebytes);
-
- memmove((char *) pmap->clientPixelsGreen,
- (char *) pmap->clientPixelsRed,
- MAXCLIENTS * sizeof(Pixel *));
- memmove((char *) pmap->clientPixelsBlue,
- (char *) pmap->clientPixelsRed,
- MAXCLIENTS * sizeof(Pixel *));
- bzero((char *) pmap->numPixelsGreen, MAXCLIENTS * sizeof(int));
- bzero((char *) pmap->numPixelsBlue, MAXCLIENTS * sizeof(int));
-
- /* If every cell is allocated, mark its refcnt */
- if (alloc == AllocAll)
- {
- size = pmap->freeGreen;
- for(pent = &pmap->green[size-1]; pent >= pmap->green; pent--)
- pent->refcnt = AllocPrivate;
- pmap->freeGreen = 0;
- ppix = xalloc(size * sizeof(Pixel));
- if (!ppix)
- {
- xfree(pmap->clientPixelsRed[client]);
- xfree(pmap);
- return(BadAlloc);
- }
- pmap->clientPixelsGreen[client] = ppix;
- for(i = 0; i < size; i++)
- ppix[i] = i;
- pmap->numPixelsGreen[client] = size;
-
- size = pmap->freeBlue;
- for(pent = &pmap->blue[size-1]; pent >= pmap->blue; pent--)
- pent->refcnt = AllocPrivate;
- pmap->freeBlue = 0;
- ppix = xalloc(size * sizeof(Pixel));
- if (!ppix)
- {
- xfree(pmap->clientPixelsGreen[client]);
- xfree(pmap->clientPixelsRed[client]);
- xfree(pmap);
- return(BadAlloc);
- }
- pmap->clientPixelsBlue[client] = ppix;
- for(i = 0; i < size; i++)
- ppix[i] = i;
- pmap->numPixelsBlue[client] = size;
- }
- }
- pmap->devPrivates = NULL;
- pmap->flags |= BeingCreated;
-
- if (!AddResource(mid, RT_COLORMAP, (pointer)pmap))
- return (BadAlloc);
-
- /*
- * Security creation/labeling check
- */
- i = XaceHook(XACE_RESOURCE_ACCESS, clients[client], mid, RT_COLORMAP,
- pmap, RT_NONE, NULL, DixCreateAccess);
- if (i != Success) {
- FreeResource(mid, RT_NONE);
- return i;
- }
-
- /* If the device wants a chance to initialize the colormap in any way,
- * this is it. In specific, if this is a Static colormap, this is the
- * time to fill in the colormap's values */
- if (!(*pScreen->CreateColormap)(pmap))
- {
- FreeResource (mid, RT_NONE);
- return BadAlloc;
- }
- pmap->flags &= ~BeingCreated;
- *ppcmap = pmap;
- return (Success);
-}
-
-/**
- *
- * \param value must conform to DeleteType
- */
-int
-FreeColormap (pointer value, XID mid)
-{
- int i;
- EntryPtr pent;
- ColormapPtr pmap = (ColormapPtr)value;
-
- if(CLIENT_ID(mid) != SERVER_ID)
- {
- (*pmap->pScreen->UninstallColormap) (pmap);
- WalkTree(pmap->pScreen, (VisitWindowProcPtr)TellNoMap, (pointer) &mid);
- }
-
- /* This is the device's chance to undo anything it needs to, especially
- * to free any storage it allocated */
- (*pmap->pScreen->DestroyColormap)(pmap);
-
- if(pmap->clientPixelsRed)
- {
- for(i = 0; i < MAXCLIENTS; i++)
- xfree(pmap->clientPixelsRed[i]);
- }
-
- if ((pmap->class == PseudoColor) || (pmap->class == GrayScale))
- {
- for(pent = &pmap->red[pmap->pVisual->ColormapEntries - 1];
- pent >= pmap->red;
- pent--)
- {
- if(pent->fShared)
- {
- if (--pent->co.shco.red->refcnt == 0)
- xfree(pent->co.shco.red);
- if (--pent->co.shco.green->refcnt == 0)
- xfree(pent->co.shco.green);
- if (--pent->co.shco.blue->refcnt == 0)
- xfree(pent->co.shco.blue);
- }
- }
- }
- if((pmap->class | DynamicClass) == DirectColor)
- {
- for(i = 0; i < MAXCLIENTS; i++)
- {
- xfree(pmap->clientPixelsGreen[i]);
- xfree(pmap->clientPixelsBlue[i]);
- }
- }
-
- dixFreePrivates(pmap->devPrivates);
- xfree(pmap);
- return(Success);
-}
-
-/* Tell window that pmid has disappeared */
-static int
-TellNoMap (WindowPtr pwin, Colormap *pmid)
-{
- xEvent xE;
-
- if (wColormap(pwin) == *pmid)
- {
- /* This should be call to DeliverEvent */
- xE.u.u.type = ColormapNotify;
- xE.u.colormap.window = pwin->drawable.id;
- xE.u.colormap.colormap = None;
- xE.u.colormap.new = TRUE;
- xE.u.colormap.state = ColormapUninstalled;
-#ifdef PANORAMIX
- if(noPanoramiXExtension || !pwin->drawable.pScreen->myNum)
-#endif
- DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
- if (pwin->optional) {
- pwin->optional->colormap = None;
- CheckWindowOptionalNeed (pwin);
- }
- }
-
- return (WT_WALKCHILDREN);
-}
-
-/* Tell window that pmid got uninstalled */
-int
-TellLostMap (WindowPtr pwin, pointer value)
-{
- Colormap *pmid = (Colormap *)value;
- xEvent xE;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pwin->drawable.pScreen->myNum)
- return WT_STOPWALKING;
-#endif
- if (wColormap(pwin) == *pmid)
- {
- /* This should be call to DeliverEvent */
- xE.u.u.type = ColormapNotify;
- xE.u.colormap.window = pwin->drawable.id;
- xE.u.colormap.colormap = *pmid;
- xE.u.colormap.new = FALSE;
- xE.u.colormap.state = ColormapUninstalled;
- DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
- }
-
- return (WT_WALKCHILDREN);
-}
-
-/* Tell window that pmid got installed */
-int
-TellGainedMap (WindowPtr pwin, pointer value)
-{
- Colormap *pmid = (Colormap *)value;
- xEvent xE;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pwin->drawable.pScreen->myNum)
- return WT_STOPWALKING;
-#endif
- if (wColormap (pwin) == *pmid)
- {
- /* This should be call to DeliverEvent */
- xE.u.u.type = ColormapNotify;
- xE.u.colormap.window = pwin->drawable.id;
- xE.u.colormap.colormap = *pmid;
- xE.u.colormap.new = FALSE;
- xE.u.colormap.state = ColormapInstalled;
- DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
- }
-
- return (WT_WALKCHILDREN);
-}
-
-
-int
-CopyColormapAndFree (Colormap mid, ColormapPtr pSrc, int client)
-{
- ColormapPtr pmap = (ColormapPtr) NULL;
- int result, alloc, size;
- Colormap midSrc;
- ScreenPtr pScreen;
- VisualPtr pVisual;
-
- pScreen = pSrc->pScreen;
- pVisual = pSrc->pVisual;
- midSrc = pSrc->mid;
- alloc = ((pSrc->flags & AllAllocated) && CLIENT_ID(midSrc) == client) ?
- AllocAll : AllocNone;
- size = pVisual->ColormapEntries;
-
- /* If the create returns non-0, it failed */
- result = CreateColormap (mid, pScreen, pVisual, &pmap, alloc, client);
- if(result != Success)
- return(result);
- if(alloc == AllocAll)
- {
- memmove((char *)pmap->red, (char *)pSrc->red, size * sizeof(Entry));
- if((pmap->class | DynamicClass) == DirectColor)
- {
- memmove((char *)pmap->green, (char *)pSrc->green, size * sizeof(Entry));
- memmove((char *)pmap->blue, (char *)pSrc->blue, size * sizeof(Entry));
- }
- pSrc->flags &= ~AllAllocated;
- FreePixels(pSrc, client);
- UpdateColors(pmap);
- return(Success);
- }
-
- CopyFree(REDMAP, client, pSrc, pmap);
- if ((pmap->class | DynamicClass) == DirectColor)
- {
- CopyFree(GREENMAP, client, pSrc, pmap);
- CopyFree(BLUEMAP, client, pSrc, pmap);
- }
- if (pmap->class & DynamicClass)
- UpdateColors(pmap);
- /* XXX should worry about removing any RT_CMAPENTRY resource */
- return(Success);
-}
-
-/* Helper routine for freeing large numbers of cells from a map */
-static void
-CopyFree (int channel, int client, ColormapPtr pmapSrc, ColormapPtr pmapDst)
-{
- int z, npix;
- EntryPtr pentSrcFirst, pentDstFirst;
- EntryPtr pentSrc, pentDst;
- Pixel *ppix;
- int nalloc;
-
- switch(channel)
- {
- default: /* so compiler can see that everything gets initialized */
- case REDMAP:
- ppix = (pmapSrc->clientPixelsRed)[client];
- npix = (pmapSrc->numPixelsRed)[client];
- pentSrcFirst = pmapSrc->red;
- pentDstFirst = pmapDst->red;
- break;
- case GREENMAP:
- ppix = (pmapSrc->clientPixelsGreen)[client];
- npix = (pmapSrc->numPixelsGreen)[client];
- pentSrcFirst = pmapSrc->green;
- pentDstFirst = pmapDst->green;
- break;
- case BLUEMAP:
- ppix = (pmapSrc->clientPixelsBlue)[client];
- npix = (pmapSrc->numPixelsBlue)[client];
- pentSrcFirst = pmapSrc->blue;
- pentDstFirst = pmapDst->blue;
- break;
- }
- nalloc = 0;
- if (pmapSrc->class & DynamicClass)
- {
- for(z = npix; --z >= 0; ppix++)
- {
- /* Copy entries */
- pentSrc = pentSrcFirst + *ppix;
- pentDst = pentDstFirst + *ppix;
- if (pentDst->refcnt > 0)
- {
- pentDst->refcnt++;
- }
- else
- {
- *pentDst = *pentSrc;
- nalloc++;
- if (pentSrc->refcnt > 0)
- pentDst->refcnt = 1;
- else
- pentSrc->fShared = FALSE;
- }
- FreeCell(pmapSrc, *ppix, channel);
- }
- }
-
- /* Note that FreeCell has already fixed pmapSrc->free{Color} */
- switch(channel)
- {
- case REDMAP:
- pmapDst->freeRed -= nalloc;
- (pmapDst->clientPixelsRed)[client] =
- (pmapSrc->clientPixelsRed)[client];
- (pmapSrc->clientPixelsRed)[client] = (Pixel *) NULL;
- (pmapDst->numPixelsRed)[client] = (pmapSrc->numPixelsRed)[client];
- (pmapSrc->numPixelsRed)[client] = 0;
- break;
- case GREENMAP:
- pmapDst->freeGreen -= nalloc;
- (pmapDst->clientPixelsGreen)[client] =
- (pmapSrc->clientPixelsGreen)[client];
- (pmapSrc->clientPixelsGreen)[client] = (Pixel *) NULL;
- (pmapDst->numPixelsGreen)[client] = (pmapSrc->numPixelsGreen)[client];
- (pmapSrc->numPixelsGreen)[client] = 0;
- break;
- case BLUEMAP:
- pmapDst->freeBlue -= nalloc;
- pmapDst->clientPixelsBlue[client] = pmapSrc->clientPixelsBlue[client];
- pmapSrc->clientPixelsBlue[client] = (Pixel *) NULL;
- pmapDst->numPixelsBlue[client] = pmapSrc->numPixelsBlue[client];
- pmapSrc->numPixelsBlue[client] = 0;
- break;
- }
-}
-
-/* Free the ith entry in a color map. Must handle freeing of
- * colors allocated through AllocColorPlanes */
-static void
-FreeCell (ColormapPtr pmap, Pixel i, int channel)
-{
- EntryPtr pent;
- int *pCount;
-
-
- switch (channel)
- {
- default: /* so compiler can see that everything gets initialized */
- case PSEUDOMAP:
- case REDMAP:
- pent = (EntryPtr) &pmap->red[i];
- pCount = &pmap->freeRed;
- break;
- case GREENMAP:
- pent = (EntryPtr) &pmap->green[i];
- pCount = &pmap->freeGreen;
- break;
- case BLUEMAP:
- pent = (EntryPtr) &pmap->blue[i];
- pCount = &pmap->freeBlue;
- break;
- }
- /* If it's not privately allocated and it's not time to free it, just
- * decrement the count */
- if (pent->refcnt > 1)
- pent->refcnt--;
- else
- {
- /* If the color type is shared, find the sharedcolor. If decremented
- * refcnt is 0, free the shared cell. */
- if (pent->fShared)
- {
- if(--pent->co.shco.red->refcnt == 0)
- xfree(pent->co.shco.red);
- if(--pent->co.shco.green->refcnt == 0)
- xfree(pent->co.shco.green);
- if(--pent->co.shco.blue->refcnt == 0)
- xfree(pent->co.shco.blue);
- pent->fShared = FALSE;
- }
- pent->refcnt = 0;
- *pCount += 1;
- }
-}
-
-static void
-UpdateColors (ColormapPtr pmap)
-{
- xColorItem *defs;
- xColorItem *pdef;
- EntryPtr pent;
- VisualPtr pVisual;
- int i, n, size;
-
- pVisual = pmap->pVisual;
- size = pVisual->ColormapEntries;
- defs = xalloc(size * sizeof(xColorItem));
- if (!defs)
- return;
- n = 0;
- pdef = defs;
- if (pmap->class == DirectColor)
- {
- for (i = 0; i < size; i++)
- {
- if (!pmap->red[i].refcnt &&
- !pmap->green[i].refcnt &&
- !pmap->blue[i].refcnt)
- continue;
- pdef->pixel = ((Pixel)i << pVisual->offsetRed) |
- ((Pixel)i << pVisual->offsetGreen) |
- ((Pixel)i << pVisual->offsetBlue);
- pdef->red = pmap->red[i].co.local.red;
- pdef->green = pmap->green[i].co.local.green;
- pdef->blue = pmap->blue[i].co.local.blue;
- pdef->flags = DoRed|DoGreen|DoBlue;
- pdef++;
- n++;
- }
- }
- else
- {
- for (i = 0, pent = pmap->red; i < size; i++, pent++)
- {
- if (!pent->refcnt)
- continue;
- pdef->pixel = i;
- if(pent->fShared)
- {
- pdef->red = pent->co.shco.red->color;
- pdef->green = pent->co.shco.green->color;
- pdef->blue = pent->co.shco.blue->color;
- }
- else
- {
- pdef->red = pent->co.local.red;
- pdef->green = pent->co.local.green;
- pdef->blue = pent->co.local.blue;
- }
- pdef->flags = DoRed|DoGreen|DoBlue;
- pdef++;
- n++;
- }
- }
- if (n)
- (*pmap->pScreen->StoreColors)(pmap, n, defs);
- xfree(defs);
-}
-
-/* Get a read-only color from a ColorMap (probably slow for large maps)
- * Returns by changing the value in pred, pgreen, pblue and pPix
- */
-int
-AllocColor (ColormapPtr pmap,
- unsigned short *pred, unsigned short *pgreen, unsigned short *pblue,
- Pixel *pPix, int client)
-{
- Pixel pixR, pixG, pixB;
- int entries;
- xrgb rgb;
- int class;
- VisualPtr pVisual;
- int npix;
- Pixel *ppix;
-
- pVisual = pmap->pVisual;
- (*pmap->pScreen->ResolveColor) (pred, pgreen, pblue, pVisual);
- rgb.red = *pred;
- rgb.green = *pgreen;
- rgb.blue = *pblue;
- class = pmap->class;
- entries = pVisual->ColormapEntries;
-
- /* If the colormap is being created, then we want to be able to change
- * the colormap, even if it's a static type. Otherwise, we'd never be
- * able to initialize static colormaps
- */
- if(pmap->flags & BeingCreated)
- class |= DynamicClass;
-
- /* If this is one of the static storage classes, and we're not initializing
- * it, the best we can do is to find the closest color entry to the
- * requested one and return that.
- */
- switch (class) {
- case StaticColor:
- case StaticGray:
- /* Look up all three components in the same pmap */
- *pPix = pixR = FindBestPixel(pmap->red, entries, &rgb, PSEUDOMAP);
- *pred = pmap->red[pixR].co.local.red;
- *pgreen = pmap->red[pixR].co.local.green;
- *pblue = pmap->red[pixR].co.local.blue;
- npix = pmap->numPixelsRed[client];
- ppix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
- (npix + 1) * sizeof(Pixel));
- if (!ppix)
- return (BadAlloc);
- ppix[npix] = pixR;
- pmap->clientPixelsRed[client] = ppix;
- pmap->numPixelsRed[client]++;
- break;
-
- case TrueColor:
- /* Look up each component in its own map, then OR them together */
- pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP);
- pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb, GREENMAP);
- pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP);
- *pPix = (pixR << pVisual->offsetRed) |
- (pixG << pVisual->offsetGreen) |
- (pixB << pVisual->offsetBlue) |
- ALPHAMASK(pVisual);
-
- *pred = pmap->red[pixR].co.local.red;
- *pgreen = pmap->green[pixG].co.local.green;
- *pblue = pmap->blue[pixB].co.local.blue;
- npix = pmap->numPixelsRed[client];
- ppix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
- (npix + 1) * sizeof(Pixel));
- if (!ppix)
- return (BadAlloc);
- ppix[npix] = pixR;
- pmap->clientPixelsRed[client] = ppix;
- npix = pmap->numPixelsGreen[client];
- ppix = (Pixel *) xrealloc(pmap->clientPixelsGreen[client],
- (npix + 1) * sizeof(Pixel));
- if (!ppix)
- return (BadAlloc);
- ppix[npix] = pixG;
- pmap->clientPixelsGreen[client] = ppix;
- npix = pmap->numPixelsBlue[client];
- ppix = (Pixel *) xrealloc(pmap->clientPixelsBlue[client],
- (npix + 1) * sizeof(Pixel));
- if (!ppix)
- return (BadAlloc);
- ppix[npix] = pixB;
- pmap->clientPixelsBlue[client] = ppix;
- pmap->numPixelsRed[client]++;
- pmap->numPixelsGreen[client]++;
- pmap->numPixelsBlue[client]++;
- break;
-
- case GrayScale:
- case PseudoColor:
- if (pmap->mid != pmap->pScreen->defColormap &&
- pmap->pVisual->vid == pmap->pScreen->rootVisual)
- {
- ColormapPtr prootmap;
- dixLookupResourceByType((pointer *)&prootmap, pmap->pScreen->defColormap,
- RT_COLORMAP, clients[client], DixReadAccess);
-
- if (pmap->class == prootmap->class)
- FindColorInRootCmap (prootmap, prootmap->red, entries, &rgb,
- pPix, PSEUDOMAP, AllComp);
- }
- if (FindColor(pmap, pmap->red, entries, &rgb, pPix, PSEUDOMAP,
- client, AllComp) != Success)
- return (BadAlloc);
- break;
-
- case DirectColor:
- if (pmap->mid != pmap->pScreen->defColormap &&
- pmap->pVisual->vid == pmap->pScreen->rootVisual)
- {
- ColormapPtr prootmap;
- dixLookupResourceByType((pointer *)&prootmap, pmap->pScreen->defColormap,
- RT_COLORMAP, clients[client], DixReadAccess);
-
- if (pmap->class == prootmap->class)
- {
- pixR = (*pPix & pVisual->redMask) >> pVisual->offsetRed;
- FindColorInRootCmap (prootmap, prootmap->red, entries, &rgb,
- &pixR, REDMAP, RedComp);
- pixG = (*pPix & pVisual->greenMask) >> pVisual->offsetGreen;
- FindColorInRootCmap (prootmap, prootmap->green, entries, &rgb,
- &pixG, GREENMAP, GreenComp);
- pixB = (*pPix & pVisual->blueMask) >> pVisual->offsetBlue;
- FindColorInRootCmap (prootmap, prootmap->blue, entries, &rgb,
- &pixB, BLUEMAP, BlueComp);
- *pPix = pixR | pixG | pixB;
- }
- }
-
- pixR = (*pPix & pVisual->redMask) >> pVisual->offsetRed;
- if (FindColor(pmap, pmap->red, NUMRED(pVisual), &rgb, &pixR, REDMAP,
- client, RedComp) != Success)
- return (BadAlloc);
- pixG = (*pPix & pVisual->greenMask) >> pVisual->offsetGreen;
- if (FindColor(pmap, pmap->green, NUMGREEN(pVisual), &rgb, &pixG,
- GREENMAP, client, GreenComp) != Success)
- {
- (void)FreeCo(pmap, client, REDMAP, 1, &pixR, (Pixel)0);
- return (BadAlloc);
- }
- pixB = (*pPix & pVisual->blueMask) >> pVisual->offsetBlue;
- if (FindColor(pmap, pmap->blue, NUMBLUE(pVisual), &rgb, &pixB, BLUEMAP,
- client, BlueComp) != Success)
- {
- (void)FreeCo(pmap, client, GREENMAP, 1, &pixG, (Pixel)0);
- (void)FreeCo(pmap, client, REDMAP, 1, &pixR, (Pixel)0);
- return (BadAlloc);
- }
- *pPix = pixR | pixG | pixB | ALPHAMASK(pVisual);
-
- break;
- }
-
- /* if this is the client's first pixel in this colormap, tell the
- * resource manager that the client has pixels in this colormap which
- * should be freed when the client dies */
- if ((pmap->numPixelsRed[client] == 1) &&
- (CLIENT_ID(pmap->mid) != client) &&
- !(pmap->flags & BeingCreated))
- {
- colorResource *pcr;
-
- pcr = xalloc(sizeof(colorResource));
- if (!pcr)
- {
- (void)FreeColors(pmap, client, 1, pPix, (Pixel)0);
- return (BadAlloc);
- }
- pcr->mid = pmap->mid;
- pcr->client = client;
- if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
- return (BadAlloc);
- }
- return (Success);
-}
-
-/*
- * FakeAllocColor -- fake an AllocColor request by
- * returning a free pixel if availible, otherwise returning
- * the closest matching pixel. This is used by the mi
- * software sprite code to recolor cursors. A nice side-effect
- * is that this routine will never return failure.
- */
-
-void
-FakeAllocColor (ColormapPtr pmap, xColorItem *item)
-{
- Pixel pixR, pixG, pixB;
- Pixel temp;
- int entries;
- xrgb rgb;
- int class;
- VisualPtr pVisual;
-
- pVisual = pmap->pVisual;
- rgb.red = item->red;
- rgb.green = item->green;
- rgb.blue = item->blue;
- (*pmap->pScreen->ResolveColor) (&rgb.red, &rgb.green, &rgb.blue, pVisual);
- class = pmap->class;
- entries = pVisual->ColormapEntries;
-
- switch (class) {
- case GrayScale:
- case PseudoColor:
- temp = 0;
- item->pixel = 0;
- if (FindColor(pmap, pmap->red, entries, &rgb, &temp, PSEUDOMAP,
- -1, AllComp) == Success) {
- item->pixel = temp;
- break;
- }
- /* fall through ... */
- case StaticColor:
- case StaticGray:
- item->pixel = FindBestPixel(pmap->red, entries, &rgb, PSEUDOMAP);
- break;
-
- case DirectColor:
- /* Look up each component in its own map, then OR them together */
- pixR = (item->pixel & pVisual->redMask) >> pVisual->offsetRed;
- pixG = (item->pixel & pVisual->greenMask) >> pVisual->offsetGreen;
- pixB = (item->pixel & pVisual->blueMask) >> pVisual->offsetBlue;
- if (FindColor(pmap, pmap->red, NUMRED(pVisual), &rgb, &pixR, REDMAP,
- -1, RedComp) != Success)
- pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP)
- << pVisual->offsetRed;
- if (FindColor(pmap, pmap->green, NUMGREEN(pVisual), &rgb, &pixG,
- GREENMAP, -1, GreenComp) != Success)
- pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb,
- GREENMAP) << pVisual->offsetGreen;
- if (FindColor(pmap, pmap->blue, NUMBLUE(pVisual), &rgb, &pixB, BLUEMAP,
- -1, BlueComp) != Success)
- pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP)
- << pVisual->offsetBlue;
- item->pixel = pixR | pixG | pixB;
- break;
-
- case TrueColor:
- /* Look up each component in its own map, then OR them together */
- pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP);
- pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb, GREENMAP);
- pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP);
- item->pixel = (pixR << pVisual->offsetRed) |
- (pixG << pVisual->offsetGreen) |
- (pixB << pVisual->offsetBlue);
- break;
- }
-}
-
-/* free a pixel value obtained from FakeAllocColor */
-void
-FakeFreeColor(ColormapPtr pmap, Pixel pixel)
-{
- VisualPtr pVisual;
- Pixel pixR, pixG, pixB;
-
- switch (pmap->class) {
- case GrayScale:
- case PseudoColor:
- if (pmap->red[pixel].refcnt == AllocTemporary)
- pmap->red[pixel].refcnt = 0;
- break;
- case DirectColor:
- pVisual = pmap->pVisual;
- pixR = (pixel & pVisual->redMask) >> pVisual->offsetRed;
- pixG = (pixel & pVisual->greenMask) >> pVisual->offsetGreen;
- pixB = (pixel & pVisual->blueMask) >> pVisual->offsetBlue;
- if (pmap->red[pixR].refcnt == AllocTemporary)
- pmap->red[pixR].refcnt = 0;
- if (pmap->green[pixG].refcnt == AllocTemporary)
- pmap->green[pixG].refcnt = 0;
- if (pmap->blue[pixB].refcnt == AllocTemporary)
- pmap->blue[pixB].refcnt = 0;
- break;
- }
-}
-
-typedef unsigned short BigNumUpper;
-typedef unsigned long BigNumLower;
-
-#define BIGNUMLOWERBITS 24
-#define BIGNUMUPPERBITS 16
-#define BIGNUMLOWER (1 << BIGNUMLOWERBITS)
-#define BIGNUMUPPER (1 << BIGNUMUPPERBITS)
-#define UPPERPART(i) ((i) >> BIGNUMLOWERBITS)
-#define LOWERPART(i) ((i) & (BIGNUMLOWER - 1))
-
-typedef struct _bignum {
- BigNumUpper upper;
- BigNumLower lower;
-} BigNumRec, *BigNumPtr;
-
-#define BigNumGreater(x,y) (((x)->upper > (y)->upper) ||\
- ((x)->upper == (y)->upper && (x)->lower > (y)->lower))
-
-#define UnsignedToBigNum(u,r) (((r)->upper = UPPERPART(u)), \
- ((r)->lower = LOWERPART(u)))
-
-#define MaxBigNum(r) (((r)->upper = BIGNUMUPPER-1), \
- ((r)->lower = BIGNUMLOWER-1))
-
-static void
-BigNumAdd (BigNumPtr x, BigNumPtr y, BigNumPtr r)
-{
- BigNumLower lower, carry = 0;
-
- lower = x->lower + y->lower;
- if (lower >= BIGNUMLOWER) {
- lower -= BIGNUMLOWER;
- carry = 1;
- }
- r->lower = lower;
- r->upper = x->upper + y->upper + carry;
-}
-
-static Pixel
-FindBestPixel(EntryPtr pentFirst, int size, xrgb *prgb, int channel)
-{
- EntryPtr pent;
- Pixel pixel, final;
- long dr, dg, db;
- unsigned long sq;
- BigNumRec minval, sum, temp;
-
- final = 0;
- MaxBigNum(&minval);
- /* look for the minimal difference */
- for (pent = pentFirst, pixel = 0; pixel < size; pent++, pixel++)
- {
- dr = dg = db = 0;
- switch(channel)
- {
- case PSEUDOMAP:
- dg = (long) pent->co.local.green - prgb->green;
- db = (long) pent->co.local.blue - prgb->blue;
- case REDMAP:
- dr = (long) pent->co.local.red - prgb->red;
- break;
- case GREENMAP:
- dg = (long) pent->co.local.green - prgb->green;
- break;
- case BLUEMAP:
- db = (long) pent->co.local.blue - prgb->blue;
- break;
- }
- sq = dr * dr;
- UnsignedToBigNum (sq, &sum);
- sq = dg * dg;
- UnsignedToBigNum (sq, &temp);
- BigNumAdd (&sum, &temp, &sum);
- sq = db * db;
- UnsignedToBigNum (sq, &temp);
- BigNumAdd (&sum, &temp, &sum);
- if (BigNumGreater (&minval, &sum))
- {
- final = pixel;
- minval = sum;
- }
- }
- return(final);
-}
-
-static void
-FindColorInRootCmap (ColormapPtr pmap, EntryPtr pentFirst, int size,
- xrgb *prgb, Pixel *pPixel, int channel,
- ColorCompareProcPtr comp)
-{
- EntryPtr pent;
- Pixel pixel;
- int count;
-
- if ((pixel = *pPixel) >= size)
- pixel = 0;
- for (pent = pentFirst + pixel, count = size; --count >= 0; pent++, pixel++)
- {
- if (pent->refcnt > 0 && (*comp) (pent, prgb))
- {
- switch (channel)
- {
- case REDMAP:
- pixel <<= pmap->pVisual->offsetRed;
- break;
- case GREENMAP:
- pixel <<= pmap->pVisual->offsetGreen;
- break;
- case BLUEMAP:
- pixel <<= pmap->pVisual->offsetBlue;
- break;
- default: /* PSEUDOMAP */
- break;
- }
- *pPixel = pixel;
- }
- }
-}
-
-/* Tries to find a color in pmap that exactly matches the one requested in prgb
- * if it can't it allocates one.
- * Starts looking at pentFirst + *pPixel, so if you want a specific pixel,
- * load *pPixel with that value, otherwise set it to 0
- */
-int
-FindColor (ColormapPtr pmap, EntryPtr pentFirst, int size, xrgb *prgb,
- Pixel *pPixel, int channel, int client,
- ColorCompareProcPtr comp)
-{
- EntryPtr pent;
- Bool foundFree;
- Pixel pixel, Free = 0;
- int npix, count, *nump = NULL;
- Pixel **pixp = NULL, *ppix;
- xColorItem def;
-
- foundFree = FALSE;
-
- if((pixel = *pPixel) >= size)
- pixel = 0;
- /* see if there is a match, and also look for a free entry */
- for (pent = pentFirst + pixel, count = size; --count >= 0; )
- {
- if (pent->refcnt > 0)
- {
- if ((*comp) (pent, prgb))
- {
- if (client >= 0)
- pent->refcnt++;
- *pPixel = pixel;
- switch(channel)
- {
- case REDMAP:
- *pPixel <<= pmap->pVisual->offsetRed;
- case PSEUDOMAP:
- break;
- case GREENMAP:
- *pPixel <<= pmap->pVisual->offsetGreen;
- break;
- case BLUEMAP:
- *pPixel <<= pmap->pVisual->offsetBlue;
- break;
- }
- goto gotit;
- }
- }
- else if (!foundFree && pent->refcnt == 0)
- {
- Free = pixel;
- foundFree = TRUE;
- /* If we're initializing the colormap, then we are looking for
- * the first free cell we can find, not to minimize the number
- * of entries we use. So don't look any further. */
- if(pmap->flags & BeingCreated)
- break;
- }
- pixel++;
- if(pixel >= size)
- {
- pent = pentFirst;
- pixel = 0;
- }
- else
- pent++;
- }
-
- /* If we got here, we didn't find a match. If we also didn't find
- * a free entry, we're out of luck. Otherwise, we'll usurp a free
- * entry and fill it in */
- if (!foundFree)
- return (BadAlloc);
- pent = pentFirst + Free;
- pent->fShared = FALSE;
- pent->refcnt = (client >= 0) ? 1 : AllocTemporary;
-
- switch (channel)
- {
- case PSEUDOMAP:
- pent->co.local.red = prgb->red;
- pent->co.local.green = prgb->green;
- pent->co.local.blue = prgb->blue;
- def.red = prgb->red;
- def.green = prgb->green;
- def.blue = prgb->blue;
- def.flags = (DoRed|DoGreen|DoBlue);
- if (client >= 0)
- pmap->freeRed--;
- def.pixel = Free;
- break;
-
- case REDMAP:
- pent->co.local.red = prgb->red;
- def.red = prgb->red;
- def.green = pmap->green[0].co.local.green;
- def.blue = pmap->blue[0].co.local.blue;
- def.flags = DoRed;
- if (client >= 0)
- pmap->freeRed--;
- def.pixel = Free << pmap->pVisual->offsetRed;
- break;
-
- case GREENMAP:
- pent->co.local.green = prgb->green;
- def.red = pmap->red[0].co.local.red;
- def.green = prgb->green;
- def.blue = pmap->blue[0].co.local.blue;
- def.flags = DoGreen;
- if (client >= 0)
- pmap->freeGreen--;
- def.pixel = Free << pmap->pVisual->offsetGreen;
- break;
-
- case BLUEMAP:
- pent->co.local.blue = prgb->blue;
- def.red = pmap->red[0].co.local.red;
- def.green = pmap->green[0].co.local.green;
- def.blue = prgb->blue;
- def.flags = DoBlue;
- if (client >= 0)
- pmap->freeBlue--;
- def.pixel = Free << pmap->pVisual->offsetBlue;
- break;
- }
- (*pmap->pScreen->StoreColors) (pmap, 1, &def);
- pixel = Free;
- *pPixel = def.pixel;
-
-gotit:
- if (pmap->flags & BeingCreated || client == -1)
- return(Success);
- /* Now remember the pixel, for freeing later */
- switch (channel)
- {
- case PSEUDOMAP:
- case REDMAP:
- nump = pmap->numPixelsRed;
- pixp = pmap->clientPixelsRed;
- break;
-
- case GREENMAP:
- nump = pmap->numPixelsGreen;
- pixp = pmap->clientPixelsGreen;
- break;
-
- case BLUEMAP:
- nump = pmap->numPixelsBlue;
- pixp = pmap->clientPixelsBlue;
- break;
- }
- npix = nump[client];
- ppix = (Pixel *) xrealloc (pixp[client], (npix + 1) * sizeof(Pixel));
- if (!ppix)
- {
- pent->refcnt--;
- if (!pent->fShared)
- switch (channel)
- {
- case PSEUDOMAP:
- case REDMAP:
- pmap->freeRed++;
- break;
- case GREENMAP:
- pmap->freeGreen++;
- break;
- case BLUEMAP:
- pmap->freeBlue++;
- break;
- }
- return(BadAlloc);
- }
- ppix[npix] = pixel;
- pixp[client] = ppix;
- nump[client]++;
-
- return(Success);
-}
-
-/* Comparison functions -- passed to FindColor to determine if an
- * entry is already the color we're looking for or not */
-static int
-AllComp (EntryPtr pent, xrgb *prgb)
-{
- if((pent->co.local.red == prgb->red) &&
- (pent->co.local.green == prgb->green) &&
- (pent->co.local.blue == prgb->blue) )
- return (1);
- return (0);
-}
-
-static int
-RedComp (EntryPtr pent, xrgb *prgb)
-{
- if (pent->co.local.red == prgb->red)
- return (1);
- return (0);
-}
-
-static int
-GreenComp (EntryPtr pent, xrgb *prgb)
-{
- if (pent->co.local.green == prgb->green)
- return (1);
- return (0);
-}
-
-static int
-BlueComp (EntryPtr pent, xrgb *prgb)
-{
- if (pent->co.local.blue == prgb->blue)
- return (1);
- return (0);
-}
-
-
-/* Read the color value of a cell */
-
-int
-QueryColors (ColormapPtr pmap, int count, Pixel *ppixIn, xrgb *prgbList)
-{
- Pixel *ppix, pixel;
- xrgb *prgb;
- VisualPtr pVisual;
- EntryPtr pent;
- Pixel i;
- int errVal = Success;
-
- pVisual = pmap->pVisual;
- if ((pmap->class | DynamicClass) == DirectColor)
- {
- int numred, numgreen, numblue;
- Pixel rgbbad;
-
- numred = NUMRED(pVisual);
- numgreen = NUMGREEN(pVisual);
- numblue = NUMBLUE(pVisual);
- rgbbad = ~RGBMASK(pVisual);
- for( ppix = ppixIn, prgb = prgbList; --count >= 0; ppix++, prgb++)
- {
- pixel = *ppix;
- if (pixel & rgbbad) {
- clientErrorValue = pixel;
- errVal = BadValue;
- continue;
- }
- i = (pixel & pVisual->redMask) >> pVisual->offsetRed;
- if (i >= numred)
- {
- clientErrorValue = pixel;
- errVal = BadValue;
- continue;
- }
- prgb->red = pmap->red[i].co.local.red;
- i = (pixel & pVisual->greenMask) >> pVisual->offsetGreen;
- if (i >= numgreen)
- {
- clientErrorValue = pixel;
- errVal = BadValue;
- continue;
- }
- prgb->green = pmap->green[i].co.local.green;
- i = (pixel & pVisual->blueMask) >> pVisual->offsetBlue;
- if (i >= numblue)
- {
- clientErrorValue = pixel;
- errVal = BadValue;
- continue;
- }
- prgb->blue = pmap->blue[i].co.local.blue;
- }
- }
- else
- {
- for( ppix = ppixIn, prgb = prgbList; --count >= 0; ppix++, prgb++)
- {
- pixel = *ppix;
- if (pixel >= pVisual->ColormapEntries)
- {
- clientErrorValue = pixel;
- errVal = BadValue;
- }
- else
- {
- pent = (EntryPtr)&pmap->red[pixel];
- if (pent->fShared)
- {
- prgb->red = pent->co.shco.red->color;
- prgb->green = pent->co.shco.green->color;
- prgb->blue = pent->co.shco.blue->color;
- }
- else
- {
- prgb->red = pent->co.local.red;
- prgb->green = pent->co.local.green;
- prgb->blue = pent->co.local.blue;
- }
- }
- }
- }
- return (errVal);
-}
-
-static void
-FreePixels(ColormapPtr pmap, int client)
-{
- Pixel *ppix, *ppixStart;
- int n;
- int class;
-
- class = pmap->class;
- ppixStart = pmap->clientPixelsRed[client];
- if (class & DynamicClass)
- {
- n = pmap->numPixelsRed[client];
- for (ppix = ppixStart; --n >= 0; )
- {
- FreeCell(pmap, *ppix, REDMAP);
- ppix++;
- }
- }
-
- xfree(ppixStart);
- pmap->clientPixelsRed[client] = (Pixel *) NULL;
- pmap->numPixelsRed[client] = 0;
- if ((class | DynamicClass) == DirectColor)
- {
- ppixStart = pmap->clientPixelsGreen[client];
- if (class & DynamicClass)
- for (ppix = ppixStart, n = pmap->numPixelsGreen[client]; --n >= 0;)
- FreeCell(pmap, *ppix++, GREENMAP);
- xfree(ppixStart);
- pmap->clientPixelsGreen[client] = (Pixel *) NULL;
- pmap->numPixelsGreen[client] = 0;
-
- ppixStart = pmap->clientPixelsBlue[client];
- if (class & DynamicClass)
- for (ppix = ppixStart, n = pmap->numPixelsBlue[client]; --n >= 0; )
- FreeCell(pmap, *ppix++, BLUEMAP);
- xfree(ppixStart);
- pmap->clientPixelsBlue[client] = (Pixel *) NULL;
- pmap->numPixelsBlue[client] = 0;
- }
-}
-
-/**
- * Frees all of a client's colors and cells.
- *
- * \param value must conform to DeleteType
- * \unused fakeid
- */
-int
-FreeClientPixels (pointer value, XID fakeid)
-{
- pointer pmap;
- colorResource *pcr = value;
- int rc;
-
- rc = dixLookupResourceByType(&pmap, pcr->mid, RT_COLORMAP, serverClient,
- DixRemoveAccess);
- if (rc == Success)
- FreePixels((ColormapPtr)pmap, pcr->client);
- xfree(pcr);
- return Success;
-}
-
-int
-AllocColorCells (int client, ColormapPtr pmap, int colors, int planes,
- Bool contig, Pixel *ppix, Pixel *masks)
-{
- Pixel rmask, gmask, bmask, *ppixFirst, r, g, b;
- int n, class;
- int ok;
- int oldcount;
- colorResource *pcr = (colorResource *)NULL;
-
- class = pmap->class;
- if (!(class & DynamicClass))
- return (BadAlloc); /* Shouldn't try on this type */
- oldcount = pmap->numPixelsRed[client];
- if (pmap->class == DirectColor)
- oldcount += pmap->numPixelsGreen[client] + pmap->numPixelsBlue[client];
- if (!oldcount && (CLIENT_ID(pmap->mid) != client))
- {
- pcr = xalloc(sizeof(colorResource));
- if (!pcr)
- return (BadAlloc);
- }
-
- if (pmap->class == DirectColor)
- {
- ok = AllocDirect (client, pmap, colors, planes, planes, planes,
- contig, ppix, &rmask, &gmask, &bmask);
- if(ok == Success)
- {
- for (r = g = b = 1, n = planes; --n >= 0; r += r, g += g, b += b)
- {
- while(!(rmask & r))
- r += r;
- while(!(gmask & g))
- g += g;
- while(!(bmask & b))
- b += b;
- *masks++ = r | g | b;
- }
- }
- }
- else
- {
- ok = AllocPseudo (client, pmap, colors, planes, contig, ppix, &rmask,
- &ppixFirst);
- if(ok == Success)
- {
- for (r = 1, n = planes; --n >= 0; r += r)
- {
- while(!(rmask & r))
- r += r;
- *masks++ = r;
- }
- }
- }
-
- /* if this is the client's first pixels in this colormap, tell the
- * resource manager that the client has pixels in this colormap which
- * should be freed when the client dies */
- if ((ok == Success) && pcr)
- {
- pcr->mid = pmap->mid;
- pcr->client = client;
- if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
- ok = BadAlloc;
- } else if (pcr)
- xfree(pcr);
-
- return (ok);
-}
-
-
-int
-AllocColorPlanes (int client, ColormapPtr pmap, int colors,
- int r, int g, int b, Bool contig, Pixel *pixels,
- Pixel *prmask, Pixel *pgmask, Pixel *pbmask)
-{
- int ok;
- Pixel mask, *ppixFirst;
- Pixel shift;
- int i;
- int class;
- int oldcount;
- colorResource *pcr = (colorResource *)NULL;
-
- class = pmap->class;
- if (!(class & DynamicClass))
- return (BadAlloc); /* Shouldn't try on this type */
- oldcount = pmap->numPixelsRed[client];
- if (class == DirectColor)
- oldcount += pmap->numPixelsGreen[client] + pmap->numPixelsBlue[client];
- if (!oldcount && (CLIENT_ID(pmap->mid) != client))
- {
- pcr = xalloc(sizeof(colorResource));
- if (!pcr)
- return (BadAlloc);
- }
-
- if (class == DirectColor)
- {
- ok = AllocDirect (client, pmap, colors, r, g, b, contig, pixels,
- prmask, pgmask, pbmask);
- }
- else
- {
- /* Allocate the proper pixels */
- /* XXX This is sort of bad, because of contig is set, we force all
- * r + g + b bits to be contiguous. Should only force contiguity
- * per mask
- */
- ok = AllocPseudo (client, pmap, colors, r + g + b, contig, pixels,
- &mask, &ppixFirst);
-
- if(ok == Success)
- {
- /* now split that mask into three */
- *prmask = *pgmask = *pbmask = 0;
- shift = 1;
- for (i = r; --i >= 0; shift += shift)
- {
- while (!(mask & shift))
- shift += shift;
- *prmask |= shift;
- }
- for (i = g; --i >= 0; shift += shift)
- {
- while (!(mask & shift))
- shift += shift;
- *pgmask |= shift;
- }
- for (i = b; --i >= 0; shift += shift)
- {
- while (!(mask & shift))
- shift += shift;
- *pbmask |= shift;
- }
-
- /* set up the shared color cells */
- if (!AllocShared(pmap, pixels, colors, r, g, b,
- *prmask, *pgmask, *pbmask, ppixFirst))
- {
- (void)FreeColors(pmap, client, colors, pixels, mask);
- ok = BadAlloc;
- }
- }
- }
-
- /* if this is the client's first pixels in this colormap, tell the
- * resource manager that the client has pixels in this colormap which
- * should be freed when the client dies */
- if ((ok == Success) && pcr)
- {
- pcr->mid = pmap->mid;
- pcr->client = client;
- if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
- ok = BadAlloc;
- } else if (pcr)
- xfree(pcr);
-
- return (ok);
-}
-
-static int
-AllocDirect (int client, ColormapPtr pmap, int c, int r, int g, int b, Bool contig,
- Pixel *pixels, Pixel *prmask, Pixel *pgmask, Pixel *pbmask)
-{
- Pixel *ppixRed, *ppixGreen, *ppixBlue;
- Pixel *ppix, *pDst, *p;
- int npix, npixR, npixG, npixB;
- Bool okR, okG, okB;
- Pixel *rpix = 0, *gpix = 0, *bpix = 0;
-
- npixR = c << r;
- npixG = c << g;
- npixB = c << b;
- if ((r >= 32) || (g >= 32) || (b >= 32) ||
- (npixR > pmap->freeRed) || (npixR < c) ||
- (npixG > pmap->freeGreen) || (npixG < c) ||
- (npixB > pmap->freeBlue) || (npixB < c))
- return BadAlloc;
-
- /* start out with empty pixels */
- for(p = pixels; p < pixels + c; p++)
- *p = 0;
-
- ppixRed = xalloc(npixR * sizeof(Pixel));
- ppixGreen = xalloc(npixG * sizeof(Pixel));
- ppixBlue = xalloc(npixB * sizeof(Pixel));
- if (!ppixRed || !ppixGreen || !ppixBlue)
- {
- if (ppixBlue) xfree(ppixBlue);
- if (ppixGreen) xfree(ppixGreen);
- if (ppixRed) xfree(ppixRed);
- return(BadAlloc);
- }
-
- okR = AllocCP(pmap, pmap->red, c, r, contig, ppixRed, prmask);
- okG = AllocCP(pmap, pmap->green, c, g, contig, ppixGreen, pgmask);
- okB = AllocCP(pmap, pmap->blue, c, b, contig, ppixBlue, pbmask);
-
- if (okR && okG && okB)
- {
- rpix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
- (pmap->numPixelsRed[client] + (c << r)) *
- sizeof(Pixel));
- if (rpix)
- pmap->clientPixelsRed[client] = rpix;
- gpix = (Pixel *) xrealloc(pmap->clientPixelsGreen[client],
- (pmap->numPixelsGreen[client] + (c << g)) *
- sizeof(Pixel));
- if (gpix)
- pmap->clientPixelsGreen[client] = gpix;
- bpix = (Pixel *) xrealloc(pmap->clientPixelsBlue[client],
- (pmap->numPixelsBlue[client] + (c << b)) *
- sizeof(Pixel));
- if (bpix)
- pmap->clientPixelsBlue[client] = bpix;
- }
-
- if (!okR || !okG || !okB || !rpix || !gpix || !bpix)
- {
- if (okR)
- for(ppix = ppixRed, npix = npixR; --npix >= 0; ppix++)
- pmap->red[*ppix].refcnt = 0;
- if (okG)
- for(ppix = ppixGreen, npix = npixG; --npix >= 0; ppix++)
- pmap->green[*ppix].refcnt = 0;
- if (okB)
- for(ppix = ppixBlue, npix = npixB; --npix >= 0; ppix++)
- pmap->blue[*ppix].refcnt = 0;
- xfree(ppixBlue);
- xfree(ppixGreen);
- xfree(ppixRed);
- return(BadAlloc);
- }
-
- *prmask <<= pmap->pVisual->offsetRed;
- *pgmask <<= pmap->pVisual->offsetGreen;
- *pbmask <<= pmap->pVisual->offsetBlue;
-
- ppix = rpix + pmap->numPixelsRed[client];
- for (pDst = pixels, p = ppixRed; p < ppixRed + npixR; p++)
- {
- *ppix++ = *p;
- if(p < ppixRed + c)
- *pDst++ |= *p << pmap->pVisual->offsetRed;
- }
- pmap->numPixelsRed[client] += npixR;
- pmap->freeRed -= npixR;
-
- ppix = gpix + pmap->numPixelsGreen[client];
- for (pDst = pixels, p = ppixGreen; p < ppixGreen + npixG; p++)
- {
- *ppix++ = *p;
- if(p < ppixGreen + c)
- *pDst++ |= *p << pmap->pVisual->offsetGreen;
- }
- pmap->numPixelsGreen[client] += npixG;
- pmap->freeGreen -= npixG;
-
- ppix = bpix + pmap->numPixelsBlue[client];
- for (pDst = pixels, p = ppixBlue; p < ppixBlue + npixB; p++)
- {
- *ppix++ = *p;
- if(p < ppixBlue + c)
- *pDst++ |= *p << pmap->pVisual->offsetBlue;
- }
- pmap->numPixelsBlue[client] += npixB;
- pmap->freeBlue -= npixB;
-
-
- for (pDst = pixels; pDst < pixels + c; pDst++)
- *pDst |= ALPHAMASK(pmap->pVisual);
-
- xfree(ppixBlue);
- xfree(ppixGreen);
- xfree(ppixRed);
-
- return (Success);
-}
-
-static int
-AllocPseudo (int client, ColormapPtr pmap, int c, int r, Bool contig,
- Pixel *pixels, Pixel *pmask, Pixel **pppixFirst)
-{
- Pixel *ppix, *p, *pDst, *ppixTemp;
- int npix;
- Bool ok;
-
- npix = c << r;
- if ((r >= 32) || (npix > pmap->freeRed) || (npix < c))
- return(BadAlloc);
- if(!(ppixTemp = xalloc(npix * sizeof(Pixel))))
- return(BadAlloc);
- ok = AllocCP(pmap, pmap->red, c, r, contig, ppixTemp, pmask);
-
- if (ok)
- {
-
- /* all the allocated pixels are added to the client pixel list,
- * but only the unique ones are returned to the client */
- ppix = (Pixel *)xrealloc(pmap->clientPixelsRed[client],
- (pmap->numPixelsRed[client] + npix) * sizeof(Pixel));
- if (!ppix)
- {
- for (p = ppixTemp; p < ppixTemp + npix; p++)
- pmap->red[*p].refcnt = 0;
- return (BadAlloc);
- }
- pmap->clientPixelsRed[client] = ppix;
- ppix += pmap->numPixelsRed[client];
- *pppixFirst = ppix;
- pDst = pixels;
- for (p = ppixTemp; p < ppixTemp + npix; p++)
- {
- *ppix++ = *p;
- if(p < ppixTemp + c)
- *pDst++ = *p;
- }
- pmap->numPixelsRed[client] += npix;
- pmap->freeRed -= npix;
- }
- xfree(ppixTemp);
- return (ok ? Success : BadAlloc);
-}
-
-/* Allocates count << planes pixels from colormap pmap for client. If
- * contig, then the plane mask is made of consecutive bits. Returns
- * all count << pixels in the array pixels. The first count of those
- * pixels are the unique pixels. *pMask has the mask to Or with the
- * unique pixels to get the rest of them.
- *
- * Returns True iff all pixels could be allocated
- * All cells allocated will have refcnt set to AllocPrivate and shared to FALSE
- * (see AllocShared for why we care)
- */
-static Bool
-AllocCP (ColormapPtr pmap, EntryPtr pentFirst, int count, int planes,
- Bool contig, Pixel *pixels, Pixel *pMask)
-{
- EntryPtr ent;
- Pixel pixel, base, entries, maxp, save;
- int dplanes, found;
- Pixel *ppix;
- Pixel mask;
- Pixel finalmask;
-
- dplanes = pmap->pVisual->nplanes;
-
- /* Easy case. Allocate pixels only */
- if (planes == 0)
- {
- /* allocate writable entries */
- ppix = pixels;
- ent = pentFirst;
- pixel = 0;
- while (--count >= 0)
- {
- /* Just find count unallocated cells */
- while (ent->refcnt)
- {
- ent++;
- pixel++;
- }
- ent->refcnt = AllocPrivate;
- *ppix++ = pixel;
- ent->fShared = FALSE;
- }
- *pMask = 0;
- return (TRUE);
- }
- else if (planes > dplanes)
- {
- return (FALSE);
- }
-
- /* General case count pixels * 2 ^ planes cells to be allocated */
-
- /* make room for new pixels */
- ent = pentFirst;
-
- /* first try for contiguous planes, since it's fastest */
- for (mask = (((Pixel)1) << planes) - 1, base = 1, dplanes -= (planes - 1);
- --dplanes >= 0;
- mask += mask, base += base)
- {
- ppix = pixels;
- found = 0;
- pixel = 0;
- entries = pmap->pVisual->ColormapEntries - mask;
- while (pixel < entries)
- {
- save = pixel;
- maxp = pixel + mask + base;
- /* check if all are free */
- while (pixel != maxp && ent[pixel].refcnt == 0)
- pixel += base;
- if (pixel == maxp)
- {
- /* this one works */
- *ppix++ = save;
- found++;
- if (found == count)
- {
- /* found enough, allocate them all */
- while (--count >= 0)
- {
- pixel = pixels[count];
- maxp = pixel + mask;
- while (1)
- {
- ent[pixel].refcnt = AllocPrivate;
- ent[pixel].fShared = FALSE;
- if (pixel == maxp)
- break;
- pixel += base;
- *ppix++ = pixel;
- }
- }
- *pMask = mask;
- return (TRUE);
- }
- }
- pixel = save + 1;
- if (pixel & mask)
- pixel += mask;
- }
- }
-
- dplanes = pmap->pVisual->nplanes;
- if (contig || planes == 1 || dplanes < 3)
- return (FALSE);
-
- /* this will be very slow for large maps, need a better algorithm */
-
- /*
- we can generate the smallest and largest numbers that fits in dplanes
- bits and contain exactly planes bits set as follows. First, we need to
- check that it is possible to generate such a mask at all.
- (Non-contiguous masks need one more bit than contiguous masks). Then
- the smallest such mask consists of the rightmost planes-1 bits set, then
- a zero, then a one in position planes + 1. The formula is
- (3 << (planes-1)) -1
- The largest such masks consists of the leftmost planes-1 bits set, then
- a zero, then a one bit in position dplanes-planes-1. If dplanes is
- smaller than 32 (the number of bits in a word) then the formula is:
- (1<<dplanes) - (1<<(dplanes-planes+1) + (1<<dplanes-planes-1)
- If dplanes = 32, then we can't calculate (1<<dplanes) and we have
- to use:
- ( (1<<(planes-1)) - 1) << (dplanes-planes+1) + (1<<(dplanes-planes-1))
-
- << Thank you, Loretta>>>
-
- */
-
- finalmask =
- (((((Pixel)1)<<(planes-1)) - 1) << (dplanes-planes+1)) +
- (((Pixel)1)<<(dplanes-planes-1));
- for (mask = (((Pixel)3) << (planes -1)) - 1; mask <= finalmask; mask++)
- {
- /* next 3 magic statements count number of ones (HAKMEM #169) */
- pixel = (mask >> 1) & 033333333333;
- pixel = mask - pixel - ((pixel >> 1) & 033333333333);
- if ((((pixel + (pixel >> 3)) & 030707070707) % 077) != planes)
- continue;
- ppix = pixels;
- found = 0;
- entries = pmap->pVisual->ColormapEntries - mask;
- base = lowbit (mask);
- for (pixel = 0; pixel < entries; pixel++)
- {
- if (pixel & mask)
- continue;
- maxp = 0;
- /* check if all are free */
- while (ent[pixel + maxp].refcnt == 0)
- {
- GetNextBitsOrBreak(maxp, mask, base);
- }
- if ((maxp < mask) || (ent[pixel + mask].refcnt != 0))
- continue;
- /* this one works */
- *ppix++ = pixel;
- found++;
- if (found < count)
- continue;
- /* found enough, allocate them all */
- while (--count >= 0)
- {
- pixel = (pixels)[count];
- maxp = 0;
- while (1)
- {
- ent[pixel + maxp].refcnt = AllocPrivate;
- ent[pixel + maxp].fShared = FALSE;
- GetNextBitsOrBreak(maxp, mask, base);
- *ppix++ = pixel + maxp;
- }
- }
-
- *pMask = mask;
- return (TRUE);
- }
- }
- return (FALSE);
-}
-
-/**
- *
- * \param ppixFirst First of the client's new pixels
- */
-static Bool
-AllocShared (ColormapPtr pmap, Pixel *ppix, int c, int r, int g, int b,
- Pixel rmask, Pixel gmask, Pixel bmask, Pixel *ppixFirst)
-{
- Pixel *pptr, *cptr;
- int npix, z, npixClientNew, npixShared;
- Pixel basemask, base, bits, common;
- SHAREDCOLOR *pshared, **ppshared, **psharedList;
-
- npixClientNew = c << (r + g + b);
- npixShared = (c << r) + (c << g) + (c << b);
- psharedList = xalloc(npixShared * sizeof(SHAREDCOLOR *));
- if (!psharedList)
- return FALSE;
- ppshared = psharedList;
- for (z = npixShared; --z >= 0; )
- {
- if (!(ppshared[z] = xalloc(sizeof(SHAREDCOLOR))))
- {
- for (z++ ; z < npixShared; z++)
- xfree(ppshared[z]);
- return FALSE;
- }
- }
- for(pptr = ppix, npix = c; --npix >= 0; pptr++)
- {
- basemask = ~(gmask | bmask);
- common = *pptr & basemask;
- if (rmask)
- {
- bits = 0;
- base = lowbit (rmask);
- while(1)
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (g + b);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == (common | bits))
- {
- pmap->red[*cptr].fShared = TRUE;
- pmap->red[*cptr].co.shco.red = pshared;
- }
- }
- GetNextBitsOrBreak(bits, rmask, base);
- }
- }
- else
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (g + b);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == common)
- {
- pmap->red[*cptr].fShared = TRUE;
- pmap->red[*cptr].co.shco.red = pshared;
- }
- }
- }
- basemask = ~(rmask | bmask);
- common = *pptr & basemask;
- if (gmask)
- {
- bits = 0;
- base = lowbit (gmask);
- while(1)
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (r + b);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == (common | bits))
- {
- pmap->red[*cptr].co.shco.green = pshared;
- }
- }
- GetNextBitsOrBreak(bits, gmask, base);
- }
- }
- else
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (g + b);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == common)
- {
- pmap->red[*cptr].co.shco.green = pshared;
- }
- }
- }
- basemask = ~(rmask | gmask);
- common = *pptr & basemask;
- if (bmask)
- {
- bits = 0;
- base = lowbit (bmask);
- while(1)
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (r + g);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == (common | bits))
- {
- pmap->red[*cptr].co.shco.blue = pshared;
- }
- }
- GetNextBitsOrBreak(bits, bmask, base);
- }
- }
- else
- {
- pshared = *ppshared++;
- pshared->refcnt = 1 << (g + b);
- for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
- {
- if ((*cptr & basemask) == common)
- {
- pmap->red[*cptr].co.shco.blue = pshared;
- }
- }
- }
- }
- xfree(psharedList);
- return TRUE;
-}
-
-
-/** FreeColors
- * Free colors and/or cells (probably slow for large numbers)
- */
-int
-FreeColors (ColormapPtr pmap, int client, int count, Pixel *pixels, Pixel mask)
-{
- int rval, result, class;
- Pixel rmask;
-
- class = pmap->class;
- if (pmap->flags & AllAllocated)
- return(BadAccess);
- if ((class | DynamicClass) == DirectColor)
- {
- rmask = mask & RGBMASK(pmap->pVisual);
- result = FreeCo(pmap, client, REDMAP, count, pixels,
- mask & pmap->pVisual->redMask);
- /* If any of the three calls fails, we must report that, if more
- * than one fails, it's ok that we report the last one */
- rval = FreeCo(pmap, client, GREENMAP, count, pixels,
- mask & pmap->pVisual->greenMask);
- if(rval != Success)
- result = rval;
- rval = FreeCo(pmap, client, BLUEMAP, count, pixels,
- mask & pmap->pVisual->blueMask);
- if(rval != Success)
- result = rval;
- }
- else
- {
- rmask = mask & ((((Pixel)1) << pmap->pVisual->nplanes) - 1);
- result = FreeCo(pmap, client, PSEUDOMAP, count, pixels, rmask);
- }
- if ((mask != rmask) && count)
- {
- clientErrorValue = *pixels | mask;
- result = BadValue;
- }
- /* XXX should worry about removing any RT_CMAPENTRY resource */
- return (result);
-}
-
-/**
- * Helper for FreeColors -- frees all combinations of *newpixels and mask bits
- * which the client has allocated in channel colormap cells of pmap.
- * doesn't change newpixels if it doesn't need to
- *
- * \param pmap which colormap head
- * \param color which sub-map, eg, RED, BLUE, PSEUDO
- * \param npixIn number of pixels passed in
- * \param ppixIn number of base pixels
- * \param mask mask client gave us
- */
-static int
-FreeCo (ColormapPtr pmap, int client, int color, int npixIn, Pixel *ppixIn, Pixel mask)
-{
- Pixel *ppixClient, pixTest;
- int npixClient, npixNew, npix;
- Pixel bits, base, cmask, rgbbad;
- Pixel *pptr, *cptr;
- int n, zapped;
- int errVal = Success;
- int offset, numents;
-
- if (npixIn == 0)
- return (errVal);
- bits = 0;
- zapped = 0;
- base = lowbit (mask);
-
- switch(color)
- {
- case REDMAP:
- cmask = pmap->pVisual->redMask;
- rgbbad = ~RGBMASK(pmap->pVisual);
- offset = pmap->pVisual->offsetRed;
- numents = (cmask >> offset) + 1;
- ppixClient = pmap->clientPixelsRed[client];
- npixClient = pmap->numPixelsRed[client];
- break;
- case GREENMAP:
- cmask = pmap->pVisual->greenMask;
- rgbbad = ~RGBMASK(pmap->pVisual);
- offset = pmap->pVisual->offsetGreen;
- numents = (cmask >> offset) + 1;
- ppixClient = pmap->clientPixelsGreen[client];
- npixClient = pmap->numPixelsGreen[client];
- break;
- case BLUEMAP:
- cmask = pmap->pVisual->blueMask;
- rgbbad = ~RGBMASK(pmap->pVisual);
- offset = pmap->pVisual->offsetBlue;
- numents = (cmask >> offset) + 1;
- ppixClient = pmap->clientPixelsBlue[client];
- npixClient = pmap->numPixelsBlue[client];
- break;
- default: /* so compiler can see that everything gets initialized */
- case PSEUDOMAP:
- cmask = ~((Pixel)0);
- rgbbad = 0;
- offset = 0;
- numents = pmap->pVisual->ColormapEntries;
- ppixClient = pmap->clientPixelsRed[client];
- npixClient = pmap->numPixelsRed[client];
- break;
- }
-
-
- /* zap all pixels which match */
- while (1)
- {
- /* go through pixel list */
- for (pptr = ppixIn, n = npixIn; --n >= 0; pptr++)
- {
- pixTest = ((*pptr | bits) & cmask) >> offset;
- if ((pixTest >= numents) || (*pptr & rgbbad))
- {
- clientErrorValue = *pptr | bits;
- errVal = BadValue;
- continue;
- }
-
- /* find match in client list */
- for (cptr = ppixClient, npix = npixClient;
- --npix >= 0 && *cptr != pixTest;
- cptr++) ;
-
- if (npix >= 0)
- {
- if (pmap->class & DynamicClass)
- {
- FreeCell(pmap, pixTest, color);
- }
- *cptr = ~((Pixel)0);
- zapped++;
- }
- else
- errVal = BadAccess;
- }
- /* generate next bits value */
- GetNextBitsOrBreak(bits, mask, base);
- }
-
- /* delete freed pixels from client pixel list */
- if (zapped)
- {
- npixNew = npixClient - zapped;
- if (npixNew)
- {
- /* Since the list can only get smaller, we can do a copy in
- * place and then realloc to a smaller size */
- pptr = cptr = ppixClient;
-
- /* If we have all the new pixels, we don't have to examine the
- * rest of the old ones */
- for(npix = 0; npix < npixNew; cptr++)
- {
- if (*cptr != ~((Pixel)0))
- {
- *pptr++ = *cptr;
- npix++;
- }
- }
- pptr = (Pixel *)xrealloc(ppixClient, npixNew * sizeof(Pixel));
- if (pptr)
- ppixClient = pptr;
- npixClient = npixNew;
- }
- else
- {
- npixClient = 0;
- xfree(ppixClient);
- ppixClient = (Pixel *)NULL;
- }
- switch(color)
- {
- case PSEUDOMAP:
- case REDMAP:
- pmap->clientPixelsRed[client] = ppixClient;
- pmap->numPixelsRed[client] = npixClient;
- break;
- case GREENMAP:
- pmap->clientPixelsGreen[client] = ppixClient;
- pmap->numPixelsGreen[client] = npixClient;
- break;
- case BLUEMAP:
- pmap->clientPixelsBlue[client] = ppixClient;
- pmap->numPixelsBlue[client] = npixClient;
- break;
- }
- }
- return (errVal);
-}
-
-
-
-/* Redefine color values */
-int
-StoreColors (ColormapPtr pmap, int count, xColorItem *defs)
-{
- Pixel pix;
- xColorItem *pdef;
- EntryPtr pent, pentT, pentLast;
- VisualPtr pVisual;
- SHAREDCOLOR *pred, *pgreen, *pblue;
- int n, ChgRed, ChgGreen, ChgBlue, idef;
- int class, errVal = Success;
- int ok;
-
-
- class = pmap->class;
- if(!(class & DynamicClass) && !(pmap->flags & BeingCreated))
- {
- return(BadAccess);
- }
- pVisual = pmap->pVisual;
-
- idef = 0;
- if((class | DynamicClass) == DirectColor)
- {
- int numred, numgreen, numblue;
- Pixel rgbbad;
-
- numred = NUMRED(pVisual);
- numgreen = NUMGREEN(pVisual);
- numblue = NUMBLUE(pVisual);
- rgbbad = ~RGBMASK(pVisual);
- for (pdef = defs, n = 0; n < count; pdef++, n++)
- {
- ok = TRUE;
- (*pmap->pScreen->ResolveColor)
- (&pdef->red, &pdef->green, &pdef->blue, pmap->pVisual);
-
- if (pdef->pixel & rgbbad)
- {
- errVal = BadValue;
- clientErrorValue = pdef->pixel;
- continue;
- }
- pix = (pdef->pixel & pVisual->redMask) >> pVisual->offsetRed;
- if (pix >= numred)
- {
- errVal = BadValue;
- ok = FALSE;
- }
- else if (pmap->red[pix].refcnt != AllocPrivate)
- {
- errVal = BadAccess;
- ok = FALSE;
- }
- else if (pdef->flags & DoRed)
- {
- pmap->red[pix].co.local.red = pdef->red;
- }
- else
- {
- pdef->red = pmap->red[pix].co.local.red;
- }
-
- pix = (pdef->pixel & pVisual->greenMask) >> pVisual->offsetGreen;
- if (pix >= numgreen)
- {
- errVal = BadValue;
- ok = FALSE;
- }
- else if (pmap->green[pix].refcnt != AllocPrivate)
- {
- errVal = BadAccess;
- ok = FALSE;
- }
- else if (pdef->flags & DoGreen)
- {
- pmap->green[pix].co.local.green = pdef->green;
- }
- else
- {
- pdef->green = pmap->green[pix].co.local.green;
- }
-
- pix = (pdef->pixel & pVisual->blueMask) >> pVisual->offsetBlue;
- if (pix >= numblue)
- {
- errVal = BadValue;
- ok = FALSE;
- }
- else if (pmap->blue[pix].refcnt != AllocPrivate)
- {
- errVal = BadAccess;
- ok = FALSE;
- }
- else if (pdef->flags & DoBlue)
- {
- pmap->blue[pix].co.local.blue = pdef->blue;
- }
- else
- {
- pdef->blue = pmap->blue[pix].co.local.blue;
- }
- /* If this is an o.k. entry, then it gets added to the list
- * to be sent to the hardware. If not, skip it. Once we've
- * skipped one, we have to copy all the others.
- */
- if(ok)
- {
- if(idef != n)
- defs[idef] = defs[n];
- idef++;
- } else
- clientErrorValue = pdef->pixel;
- }
- }
- else
- {
- for (pdef = defs, n = 0; n < count; pdef++, n++)
- {
-
- ok = TRUE;
- if (pdef->pixel >= pVisual->ColormapEntries)
- {
- clientErrorValue = pdef->pixel;
- errVal = BadValue;
- ok = FALSE;
- }
- else if (pmap->red[pdef->pixel].refcnt != AllocPrivate)
- {
- errVal = BadAccess;
- ok = FALSE;
- }
-
- /* If this is an o.k. entry, then it gets added to the list
- * to be sent to the hardware. If not, skip it. Once we've
- * skipped one, we have to copy all the others.
- */
- if(ok)
- {
- if(idef != n)
- defs[idef] = defs[n];
- idef++;
- }
- else
- continue;
-
- (*pmap->pScreen->ResolveColor)
- (&pdef->red, &pdef->green, &pdef->blue, pmap->pVisual);
-
- pent = &pmap->red[pdef->pixel];
-
- if(pdef->flags & DoRed)
- {
- if(pent->fShared)
- {
- pent->co.shco.red->color = pdef->red;
- if (pent->co.shco.red->refcnt > 1)
- ok = FALSE;
- }
- else
- pent->co.local.red = pdef->red;
- }
- else
- {
- if(pent->fShared)
- pdef->red = pent->co.shco.red->color;
- else
- pdef->red = pent->co.local.red;
- }
- if(pdef->flags & DoGreen)
- {
- if(pent->fShared)
- {
- pent->co.shco.green->color = pdef->green;
- if (pent->co.shco.green->refcnt > 1)
- ok = FALSE;
- }
- else
- pent->co.local.green = pdef->green;
- }
- else
- {
- if(pent->fShared)
- pdef->green = pent->co.shco.green->color;
- else
- pdef->green = pent->co.local.green;
- }
- if(pdef->flags & DoBlue)
- {
- if(pent->fShared)
- {
- pent->co.shco.blue->color = pdef->blue;
- if (pent->co.shco.blue->refcnt > 1)
- ok = FALSE;
- }
- else
- pent->co.local.blue = pdef->blue;
- }
- else
- {
- if(pent->fShared)
- pdef->blue = pent->co.shco.blue->color;
- else
- pdef->blue = pent->co.local.blue;
- }
-
- if(!ok)
- {
- /* have to run through the colormap and change anybody who
- * shares this value */
- pred = pent->co.shco.red;
- pgreen = pent->co.shco.green;
- pblue = pent->co.shco.blue;
- ChgRed = pdef->flags & DoRed;
- ChgGreen = pdef->flags & DoGreen;
- ChgBlue = pdef->flags & DoBlue;
- pentLast = pmap->red + pVisual->ColormapEntries;
-
- for(pentT = pmap->red; pentT < pentLast; pentT++)
- {
- if(pentT->fShared && (pentT != pent))
- {
- xColorItem defChg;
-
- /* There are, alas, devices in this world too dumb
- * to read their own hardware colormaps. Sick, but
- * true. So we're going to be really nice and load
- * the xColorItem with the proper value for all the
- * fields. We will only set the flags for those
- * fields that actually change. Smart devices can
- * arrange to change only those fields. Dumb devices
- * can rest assured that we have provided for them,
- * and can change all three fields */
-
- defChg.flags = 0;
- if(ChgRed && pentT->co.shco.red == pred)
- {
- defChg.flags |= DoRed;
- }
- if(ChgGreen && pentT->co.shco.green == pgreen)
- {
- defChg.flags |= DoGreen;
- }
- if(ChgBlue && pentT->co.shco.blue == pblue)
- {
- defChg.flags |= DoBlue;
- }
- if(defChg.flags != 0)
- {
- defChg.pixel = pentT - pmap->red;
- defChg.red = pentT->co.shco.red->color;
- defChg.green = pentT->co.shco.green->color;
- defChg.blue = pentT->co.shco.blue->color;
- (*pmap->pScreen->StoreColors) (pmap, 1, &defChg);
- }
- }
- }
-
- }
- }
- }
- /* Note that we use idef, the count of acceptable entries, and not
- * count, the count of proposed entries */
- if (idef != 0)
- ( *pmap->pScreen->StoreColors) (pmap, idef, defs);
- return (errVal);
-}
-
-int
-IsMapInstalled(Colormap map, WindowPtr pWin)
-{
- Colormap *pmaps;
- int imap, nummaps, found;
-
- pmaps = xalloc(pWin->drawable.pScreen->maxInstalledCmaps*sizeof(Colormap));
- if(!pmaps)
- return(FALSE);
- nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps)
- (pWin->drawable.pScreen, pmaps);
- found = FALSE;
- for(imap = 0; imap < nummaps; imap++)
- {
- if(pmaps[imap] == map)
- {
- found = TRUE;
- break;
- }
- }
- xfree(pmaps);
- return (found);
-}
-
-struct colormap_lookup_data {
- ScreenPtr pScreen;
- VisualPtr visuals;
-};
-
-static void _colormap_find_resource(pointer value, XID id,
- pointer cdata)
-{
- struct colormap_lookup_data *cmap_data = cdata;
- VisualPtr visuals = cmap_data->visuals;
- ScreenPtr pScreen = cmap_data->pScreen;
- ColormapPtr cmap = value;
- int j;
-
- if (pScreen != cmap->pScreen)
- return;
-
- j = cmap->pVisual - pScreen->visuals;
- cmap->pVisual = &visuals[j];
-}
-
-/* something has realloced the visuals, instead of breaking
- ABI fix it up here - glx and compsite did this wrong */
-Bool
-ResizeVisualArray(ScreenPtr pScreen, int new_visual_count,
- DepthPtr depth)
-{
- struct colormap_lookup_data cdata;
- int numVisuals;
- VisualPtr visuals;
- XID *vids, vid;
- int first_new_vid, first_new_visual, i;
-
- first_new_vid = depth->numVids;
- first_new_visual = pScreen->numVisuals;
-
- vids = xrealloc(depth->vids, (depth->numVids + new_visual_count) * sizeof(XID));
- if (!vids)
- return FALSE;
-
- /* its realloced now no going back if we fail the next one */
- depth->vids = vids;
-
- numVisuals = pScreen->numVisuals + new_visual_count;
- visuals = xrealloc(pScreen->visuals, numVisuals * sizeof(VisualRec));
- if (!visuals) {
- return FALSE;
- }
-
- cdata.visuals = visuals;
- cdata.pScreen = pScreen;
- FindClientResourcesByType(serverClient, RT_COLORMAP, _colormap_find_resource, &cdata);
-
- pScreen->visuals = visuals;
-
- for (i = 0; i < new_visual_count; i++) {
- vid = FakeClientID(0);
- pScreen->visuals[first_new_visual + i].vid = vid;
- vids[first_new_vid + i] = vid;
- }
-
- depth->numVids += new_visual_count;
- pScreen->numVisuals += new_visual_count;
-
- return TRUE;
-}
+/***********************************************************
+
+Copyright 1987, 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.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+******************************************************************/
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xproto.h>
+#include <stdio.h>
+#include <string.h>
+#include <strings.h>
+#include "misc.h"
+#include "dix.h"
+#include "colormapst.h"
+#include "os.h"
+#include "scrnintstr.h"
+#include "resource.h"
+#include "windowstr.h"
+#include "privates.h"
+#include "xace.h"
+
+#ifdef _MSC_VER
+#define UpdateColors thisUpdateColors
+#endif
+
+extern XID clientErrorValue;
+
+static Pixel FindBestPixel(
+ EntryPtr /*pentFirst*/,
+ int /*size*/,
+ xrgb * /*prgb*/,
+ int /*channel*/
+);
+
+static int AllComp(
+ EntryPtr /*pent*/,
+ xrgb * /*prgb*/
+);
+
+static int RedComp(
+ EntryPtr /*pent*/,
+ xrgb * /*prgb*/
+);
+
+static int GreenComp(
+ EntryPtr /*pent*/,
+ xrgb * /*prgb*/
+);
+
+static int BlueComp(
+ EntryPtr /*pent*/,
+ xrgb * /*prgb*/
+);
+
+static void FreePixels(
+ ColormapPtr /*pmap*/,
+ int /*client*/
+);
+
+static void CopyFree(
+ int /*channel*/,
+ int /*client*/,
+ ColormapPtr /*pmapSrc*/,
+ ColormapPtr /*pmapDst*/
+);
+
+static void FreeCell(
+ ColormapPtr /*pmap*/,
+ Pixel /*i*/,
+ int /*channel*/
+);
+
+static void UpdateColors(
+ ColormapPtr /*pmap*/
+);
+
+static int AllocDirect(
+ int /*client*/,
+ ColormapPtr /*pmap*/,
+ int /*c*/,
+ int /*r*/,
+ int /*g*/,
+ int /*b*/,
+ Bool /*contig*/,
+ Pixel * /*pixels*/,
+ Pixel * /*prmask*/,
+ Pixel * /*pgmask*/,
+ Pixel * /*pbmask*/
+);
+
+static int AllocPseudo(
+ int /*client*/,
+ ColormapPtr /*pmap*/,
+ int /*c*/,
+ int /*r*/,
+ Bool /*contig*/,
+ Pixel * /*pixels*/,
+ Pixel * /*pmask*/,
+ Pixel ** /*pppixFirst*/
+);
+
+static Bool AllocCP(
+ ColormapPtr /*pmap*/,
+ EntryPtr /*pentFirst*/,
+ int /*count*/,
+ int /*planes*/,
+ Bool /*contig*/,
+ Pixel * /*pixels*/,
+ Pixel * /*pMask*/
+);
+
+static Bool AllocShared(
+ ColormapPtr /*pmap*/,
+ Pixel * /*ppix*/,
+ int /*c*/,
+ int /*r*/,
+ int /*g*/,
+ int /*b*/,
+ Pixel /*rmask*/,
+ Pixel /*gmask*/,
+ Pixel /*bmask*/,
+ Pixel * /*ppixFirst*/
+);
+
+static int FreeCo(
+ ColormapPtr /*pmap*/,
+ int /*client*/,
+ int /*color*/,
+ int /*npixIn*/,
+ Pixel * /*ppixIn*/,
+ Pixel /*mask*/
+);
+
+static int TellNoMap(
+ WindowPtr /*pwin*/,
+ Colormap * /*pmid*/
+);
+
+static void FindColorInRootCmap (
+ ColormapPtr /* pmap */,
+ EntryPtr /* pentFirst */,
+ int /* size */,
+ xrgb* /* prgb */,
+ Pixel* /* pPixel */,
+ int /* channel */,
+ ColorCompareProcPtr /* comp */
+);
+
+#define NUMRED(vis) ((vis->redMask >> vis->offsetRed) + 1)
+#define NUMGREEN(vis) ((vis->greenMask >> vis->offsetGreen) + 1)
+#define NUMBLUE(vis) ((vis->blueMask >> vis->offsetBlue) + 1)
+#if COMPOSITE
+#define ALPHAMASK(vis) ((vis)->nplanes < 32 ? 0 : \
+ (CARD32) ~((vis)->redMask|(vis)->greenMask|(vis)->blueMask))
+#else
+#define ALPHAMASK(vis) 0
+#endif
+
+#define RGBMASK(vis) (vis->redMask | vis->greenMask | vis->blueMask | ALPHAMASK(vis))
+
+/* GetNextBitsOrBreak(bits, mask, base) --
+ * (Suggestion: First read the macro, then read this explanation.
+ *
+ * Either generate the next value to OR in to a pixel or break out of this
+ * while loop
+ *
+ * This macro is used when we're trying to generate all 2^n combinations of
+ * bits in mask. What we're doing here is counting in binary, except that
+ * the bits we use to count may not be contiguous. This macro will be
+ * called 2^n times, returning a different value in bits each time. Then
+ * it will cause us to break out of a surrounding loop. (It will always be
+ * called from within a while loop.)
+ * On call: mask is the value we want to find all the combinations for
+ * base has 1 bit set where the least significant bit of mask is set
+ *
+ * For example,if mask is 01010, base should be 0010 and we count like this:
+ * 00010 (see this isn't so hard),
+ * then we add base to bits and get 0100. (bits & ~mask) is (0100 & 0100) so
+ * we add that to bits getting (0100 + 0100) =
+ * 01000 for our next value.
+ * then we add 0010 to get
+ * 01010 and we're done (easy as 1, 2, 3)
+ */
+#define GetNextBitsOrBreak(bits, mask, base) \
+ if((bits) == (mask)) \
+ break; \
+ (bits) += (base); \
+ while((bits) & ~(mask)) \
+ (bits) += ((bits) & ~(mask));
+/* ID of server as client */
+#define SERVER_ID 0
+
+typedef struct _colorResource
+{
+ Colormap mid;
+ int client;
+} colorResource;
+
+/* Invariants:
+ * refcnt == 0 means entry is empty
+ * refcnt > 0 means entry is useable by many clients, so it can't be changed
+ * refcnt == AllocPrivate means entry owned by one client only
+ * fShared should only be set if refcnt == AllocPrivate, and only in red map
+ */
+
+
+/**
+ * Create and initialize the color map
+ *
+ * \param mid resource to use for this colormap
+ * \param alloc 1 iff all entries are allocated writable
+ */
+int
+CreateColormap (Colormap mid, ScreenPtr pScreen, VisualPtr pVisual,
+ ColormapPtr *ppcmap, int alloc, int client)
+{
+ int class, size;
+ unsigned long sizebytes;
+ ColormapPtr pmap;
+ EntryPtr pent;
+ int i;
+ Pixel *ppix, **pptr;
+
+ class = pVisual->class;
+ if(!(class & DynamicClass) && (alloc != AllocNone) && (client != SERVER_ID))
+ return (BadMatch);
+
+ size = pVisual->ColormapEntries;
+ sizebytes = (size * sizeof(Entry)) +
+ (MAXCLIENTS * sizeof(Pixel *)) +
+ (MAXCLIENTS * sizeof(int));
+ if ((class | DynamicClass) == DirectColor)
+ sizebytes *= 3;
+ sizebytes += sizeof(ColormapRec);
+ pmap = xalloc(sizebytes);
+ if (!pmap)
+ return (BadAlloc);
+#if defined(_XSERVER64)
+ pmap->pad0 = 0;
+ pmap->pad1 = 0;
+#if (X_BYTE_ORDER == X_LITTLE_ENDIAN)
+ pmap->pad2 = 0;
+#endif
+#endif
+ pmap->red = (EntryPtr)((char *)pmap + sizeof(ColormapRec));
+ sizebytes = size * sizeof(Entry);
+ pmap->clientPixelsRed = (Pixel **)((char *)pmap->red + sizebytes);
+ pmap->numPixelsRed = (int *)((char *)pmap->clientPixelsRed +
+ (MAXCLIENTS * sizeof(Pixel *)));
+ pmap->mid = mid;
+ pmap->flags = 0; /* start out with all flags clear */
+ if(mid == pScreen->defColormap)
+ pmap->flags |= IsDefault;
+ pmap->pScreen = pScreen;
+ pmap->pVisual = pVisual;
+ pmap->class = class;
+ if ((class | DynamicClass) == DirectColor)
+ size = NUMRED(pVisual);
+ pmap->freeRed = size;
+ bzero ((char *) pmap->red, (int)sizebytes);
+ bzero((char *) pmap->numPixelsRed, MAXCLIENTS * sizeof(int));
+ for (pptr = &pmap->clientPixelsRed[MAXCLIENTS]; --pptr >= pmap->clientPixelsRed; )
+ *pptr = (Pixel *)NULL;
+ if (alloc == AllocAll)
+ {
+ if (class & DynamicClass)
+ pmap->flags |= AllAllocated;
+ for (pent = &pmap->red[size - 1]; pent >= pmap->red; pent--)
+ pent->refcnt = AllocPrivate;
+ pmap->freeRed = 0;
+ ppix = xalloc(size * sizeof(Pixel));
+ if (!ppix)
+ {
+ xfree(pmap);
+ return (BadAlloc);
+ }
+ pmap->clientPixelsRed[client] = ppix;
+ for(i = 0; i < size; i++)
+ ppix[i] = i;
+ pmap->numPixelsRed[client] = size;
+ }
+
+ if ((class | DynamicClass) == DirectColor)
+ {
+ pmap->freeGreen = NUMGREEN(pVisual);
+ pmap->green = (EntryPtr)((char *)pmap->numPixelsRed +
+ (MAXCLIENTS * sizeof(int)));
+ pmap->clientPixelsGreen = (Pixel **)((char *)pmap->green + sizebytes);
+ pmap->numPixelsGreen = (int *)((char *)pmap->clientPixelsGreen +
+ (MAXCLIENTS * sizeof(Pixel *)));
+ pmap->freeBlue = NUMBLUE(pVisual);
+ pmap->blue = (EntryPtr)((char *)pmap->numPixelsGreen +
+ (MAXCLIENTS * sizeof(int)));
+ pmap->clientPixelsBlue = (Pixel **)((char *)pmap->blue + sizebytes);
+ pmap->numPixelsBlue = (int *)((char *)pmap->clientPixelsBlue +
+ (MAXCLIENTS * sizeof(Pixel *)));
+
+ bzero ((char *) pmap->green, (int)sizebytes);
+ bzero ((char *) pmap->blue, (int)sizebytes);
+
+ memmove((char *) pmap->clientPixelsGreen,
+ (char *) pmap->clientPixelsRed,
+ MAXCLIENTS * sizeof(Pixel *));
+ memmove((char *) pmap->clientPixelsBlue,
+ (char *) pmap->clientPixelsRed,
+ MAXCLIENTS * sizeof(Pixel *));
+ bzero((char *) pmap->numPixelsGreen, MAXCLIENTS * sizeof(int));
+ bzero((char *) pmap->numPixelsBlue, MAXCLIENTS * sizeof(int));
+
+ /* If every cell is allocated, mark its refcnt */
+ if (alloc == AllocAll)
+ {
+ size = pmap->freeGreen;
+ for(pent = &pmap->green[size-1]; pent >= pmap->green; pent--)
+ pent->refcnt = AllocPrivate;
+ pmap->freeGreen = 0;
+ ppix = xalloc(size * sizeof(Pixel));
+ if (!ppix)
+ {
+ xfree(pmap->clientPixelsRed[client]);
+ xfree(pmap);
+ return(BadAlloc);
+ }
+ pmap->clientPixelsGreen[client] = ppix;
+ for(i = 0; i < size; i++)
+ ppix[i] = i;
+ pmap->numPixelsGreen[client] = size;
+
+ size = pmap->freeBlue;
+ for(pent = &pmap->blue[size-1]; pent >= pmap->blue; pent--)
+ pent->refcnt = AllocPrivate;
+ pmap->freeBlue = 0;
+ ppix = xalloc(size * sizeof(Pixel));
+ if (!ppix)
+ {
+ xfree(pmap->clientPixelsGreen[client]);
+ xfree(pmap->clientPixelsRed[client]);
+ xfree(pmap);
+ return(BadAlloc);
+ }
+ pmap->clientPixelsBlue[client] = ppix;
+ for(i = 0; i < size; i++)
+ ppix[i] = i;
+ pmap->numPixelsBlue[client] = size;
+ }
+ }
+ pmap->devPrivates = NULL;
+ pmap->flags |= BeingCreated;
+
+ if (!AddResource(mid, RT_COLORMAP, (pointer)pmap))
+ return (BadAlloc);
+
+ /*
+ * Security creation/labeling check
+ */
+ i = XaceHook(XACE_RESOURCE_ACCESS, clients[client], mid, RT_COLORMAP,
+ pmap, RT_NONE, NULL, DixCreateAccess);
+ if (i != Success) {
+ FreeResource(mid, RT_NONE);
+ return i;
+ }
+
+ /* If the device wants a chance to initialize the colormap in any way,
+ * this is it. In specific, if this is a Static colormap, this is the
+ * time to fill in the colormap's values */
+ if (!(*pScreen->CreateColormap)(pmap))
+ {
+ FreeResource (mid, RT_NONE);
+ return BadAlloc;
+ }
+ pmap->flags &= ~BeingCreated;
+ *ppcmap = pmap;
+ return (Success);
+}
+
+/**
+ *
+ * \param value must conform to DeleteType
+ */
+int
+FreeColormap (pointer value, XID mid)
+{
+ int i;
+ EntryPtr pent;
+ ColormapPtr pmap = (ColormapPtr)value;
+
+ if(CLIENT_ID(mid) != SERVER_ID)
+ {
+ (*pmap->pScreen->UninstallColormap) (pmap);
+ WalkTree(pmap->pScreen, (VisitWindowProcPtr)TellNoMap, (pointer) &mid);
+ }
+
+ /* This is the device's chance to undo anything it needs to, especially
+ * to free any storage it allocated */
+ (*pmap->pScreen->DestroyColormap)(pmap);
+
+ if(pmap->clientPixelsRed)
+ {
+ for(i = 0; i < MAXCLIENTS; i++)
+ xfree(pmap->clientPixelsRed[i]);
+ }
+
+ if ((pmap->class == PseudoColor) || (pmap->class == GrayScale))
+ {
+ for(pent = &pmap->red[pmap->pVisual->ColormapEntries - 1];
+ pent >= pmap->red;
+ pent--)
+ {
+ if(pent->fShared)
+ {
+ if (--pent->co.shco.red->refcnt == 0)
+ xfree(pent->co.shco.red);
+ if (--pent->co.shco.green->refcnt == 0)
+ xfree(pent->co.shco.green);
+ if (--pent->co.shco.blue->refcnt == 0)
+ xfree(pent->co.shco.blue);
+ }
+ }
+ }
+ if((pmap->class | DynamicClass) == DirectColor)
+ {
+ for(i = 0; i < MAXCLIENTS; i++)
+ {
+ xfree(pmap->clientPixelsGreen[i]);
+ xfree(pmap->clientPixelsBlue[i]);
+ }
+ }
+
+ dixFreePrivates(pmap->devPrivates);
+ xfree(pmap);
+ return(Success);
+}
+
+/* Tell window that pmid has disappeared */
+static int
+TellNoMap (WindowPtr pwin, Colormap *pmid)
+{
+ xEvent xE;
+
+ if (wColormap(pwin) == *pmid)
+ {
+ /* This should be call to DeliverEvent */
+ xE.u.u.type = ColormapNotify;
+ xE.u.colormap.window = pwin->drawable.id;
+ xE.u.colormap.colormap = None;
+ xE.u.colormap.new = TRUE;
+ xE.u.colormap.state = ColormapUninstalled;
+#ifdef PANORAMIX
+ if(noPanoramiXExtension || !pwin->drawable.pScreen->myNum)
+#endif
+ DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
+ if (pwin->optional) {
+ pwin->optional->colormap = None;
+ CheckWindowOptionalNeed (pwin);
+ }
+ }
+
+ return (WT_WALKCHILDREN);
+}
+
+/* Tell window that pmid got uninstalled */
+int
+TellLostMap (WindowPtr pwin, pointer value)
+{
+ Colormap *pmid = (Colormap *)value;
+ xEvent xE;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pwin->drawable.pScreen->myNum)
+ return WT_STOPWALKING;
+#endif
+ if (wColormap(pwin) == *pmid)
+ {
+ /* This should be call to DeliverEvent */
+ xE.u.u.type = ColormapNotify;
+ xE.u.colormap.window = pwin->drawable.id;
+ xE.u.colormap.colormap = *pmid;
+ xE.u.colormap.new = FALSE;
+ xE.u.colormap.state = ColormapUninstalled;
+ DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
+ }
+
+ return (WT_WALKCHILDREN);
+}
+
+/* Tell window that pmid got installed */
+int
+TellGainedMap (WindowPtr pwin, pointer value)
+{
+ Colormap *pmid = (Colormap *)value;
+ xEvent xE;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pwin->drawable.pScreen->myNum)
+ return WT_STOPWALKING;
+#endif
+ if (wColormap (pwin) == *pmid)
+ {
+ /* This should be call to DeliverEvent */
+ xE.u.u.type = ColormapNotify;
+ xE.u.colormap.window = pwin->drawable.id;
+ xE.u.colormap.colormap = *pmid;
+ xE.u.colormap.new = FALSE;
+ xE.u.colormap.state = ColormapInstalled;
+ DeliverEvents(pwin, &xE, 1, (WindowPtr)NULL);
+ }
+
+ return (WT_WALKCHILDREN);
+}
+
+
+int
+CopyColormapAndFree (Colormap mid, ColormapPtr pSrc, int client)
+{
+ ColormapPtr pmap = (ColormapPtr) NULL;
+ int result, alloc, size;
+ Colormap midSrc;
+ ScreenPtr pScreen;
+ VisualPtr pVisual;
+
+ pScreen = pSrc->pScreen;
+ pVisual = pSrc->pVisual;
+ midSrc = pSrc->mid;
+ alloc = ((pSrc->flags & AllAllocated) && CLIENT_ID(midSrc) == client) ?
+ AllocAll : AllocNone;
+ size = pVisual->ColormapEntries;
+
+ /* If the create returns non-0, it failed */
+ result = CreateColormap (mid, pScreen, pVisual, &pmap, alloc, client);
+ if(result != Success)
+ return(result);
+ if(alloc == AllocAll)
+ {
+ memmove((char *)pmap->red, (char *)pSrc->red, size * sizeof(Entry));
+ if((pmap->class | DynamicClass) == DirectColor)
+ {
+ memmove((char *)pmap->green, (char *)pSrc->green, size * sizeof(Entry));
+ memmove((char *)pmap->blue, (char *)pSrc->blue, size * sizeof(Entry));
+ }
+ pSrc->flags &= ~AllAllocated;
+ FreePixels(pSrc, client);
+ UpdateColors(pmap);
+ return(Success);
+ }
+
+ CopyFree(REDMAP, client, pSrc, pmap);
+ if ((pmap->class | DynamicClass) == DirectColor)
+ {
+ CopyFree(GREENMAP, client, pSrc, pmap);
+ CopyFree(BLUEMAP, client, pSrc, pmap);
+ }
+ if (pmap->class & DynamicClass)
+ UpdateColors(pmap);
+ /* XXX should worry about removing any RT_CMAPENTRY resource */
+ return(Success);
+}
+
+/* Helper routine for freeing large numbers of cells from a map */
+static void
+CopyFree (int channel, int client, ColormapPtr pmapSrc, ColormapPtr pmapDst)
+{
+ int z, npix;
+ EntryPtr pentSrcFirst, pentDstFirst;
+ EntryPtr pentSrc, pentDst;
+ Pixel *ppix;
+ int nalloc;
+
+ switch(channel)
+ {
+ default: /* so compiler can see that everything gets initialized */
+ case REDMAP:
+ ppix = (pmapSrc->clientPixelsRed)[client];
+ npix = (pmapSrc->numPixelsRed)[client];
+ pentSrcFirst = pmapSrc->red;
+ pentDstFirst = pmapDst->red;
+ break;
+ case GREENMAP:
+ ppix = (pmapSrc->clientPixelsGreen)[client];
+ npix = (pmapSrc->numPixelsGreen)[client];
+ pentSrcFirst = pmapSrc->green;
+ pentDstFirst = pmapDst->green;
+ break;
+ case BLUEMAP:
+ ppix = (pmapSrc->clientPixelsBlue)[client];
+ npix = (pmapSrc->numPixelsBlue)[client];
+ pentSrcFirst = pmapSrc->blue;
+ pentDstFirst = pmapDst->blue;
+ break;
+ }
+ nalloc = 0;
+ if (pmapSrc->class & DynamicClass)
+ {
+ for(z = npix; --z >= 0; ppix++)
+ {
+ /* Copy entries */
+ pentSrc = pentSrcFirst + *ppix;
+ pentDst = pentDstFirst + *ppix;
+ if (pentDst->refcnt > 0)
+ {
+ pentDst->refcnt++;
+ }
+ else
+ {
+ *pentDst = *pentSrc;
+ nalloc++;
+ if (pentSrc->refcnt > 0)
+ pentDst->refcnt = 1;
+ else
+ pentSrc->fShared = FALSE;
+ }
+ FreeCell(pmapSrc, *ppix, channel);
+ }
+ }
+
+ /* Note that FreeCell has already fixed pmapSrc->free{Color} */
+ switch(channel)
+ {
+ case REDMAP:
+ pmapDst->freeRed -= nalloc;
+ (pmapDst->clientPixelsRed)[client] =
+ (pmapSrc->clientPixelsRed)[client];
+ (pmapSrc->clientPixelsRed)[client] = (Pixel *) NULL;
+ (pmapDst->numPixelsRed)[client] = (pmapSrc->numPixelsRed)[client];
+ (pmapSrc->numPixelsRed)[client] = 0;
+ break;
+ case GREENMAP:
+ pmapDst->freeGreen -= nalloc;
+ (pmapDst->clientPixelsGreen)[client] =
+ (pmapSrc->clientPixelsGreen)[client];
+ (pmapSrc->clientPixelsGreen)[client] = (Pixel *) NULL;
+ (pmapDst->numPixelsGreen)[client] = (pmapSrc->numPixelsGreen)[client];
+ (pmapSrc->numPixelsGreen)[client] = 0;
+ break;
+ case BLUEMAP:
+ pmapDst->freeBlue -= nalloc;
+ pmapDst->clientPixelsBlue[client] = pmapSrc->clientPixelsBlue[client];
+ pmapSrc->clientPixelsBlue[client] = (Pixel *) NULL;
+ pmapDst->numPixelsBlue[client] = pmapSrc->numPixelsBlue[client];
+ pmapSrc->numPixelsBlue[client] = 0;
+ break;
+ }
+}
+
+/* Free the ith entry in a color map. Must handle freeing of
+ * colors allocated through AllocColorPlanes */
+static void
+FreeCell (ColormapPtr pmap, Pixel i, int channel)
+{
+ EntryPtr pent;
+ int *pCount;
+
+
+ switch (channel)
+ {
+ default: /* so compiler can see that everything gets initialized */
+ case PSEUDOMAP:
+ case REDMAP:
+ pent = (EntryPtr) &pmap->red[i];
+ pCount = &pmap->freeRed;
+ break;
+ case GREENMAP:
+ pent = (EntryPtr) &pmap->green[i];
+ pCount = &pmap->freeGreen;
+ break;
+ case BLUEMAP:
+ pent = (EntryPtr) &pmap->blue[i];
+ pCount = &pmap->freeBlue;
+ break;
+ }
+ /* If it's not privately allocated and it's not time to free it, just
+ * decrement the count */
+ if (pent->refcnt > 1)
+ pent->refcnt--;
+ else
+ {
+ /* If the color type is shared, find the sharedcolor. If decremented
+ * refcnt is 0, free the shared cell. */
+ if (pent->fShared)
+ {
+ if(--pent->co.shco.red->refcnt == 0)
+ xfree(pent->co.shco.red);
+ if(--pent->co.shco.green->refcnt == 0)
+ xfree(pent->co.shco.green);
+ if(--pent->co.shco.blue->refcnt == 0)
+ xfree(pent->co.shco.blue);
+ pent->fShared = FALSE;
+ }
+ pent->refcnt = 0;
+ *pCount += 1;
+ }
+}
+
+static void
+UpdateColors (ColormapPtr pmap)
+{
+ xColorItem *defs;
+ xColorItem *pdef;
+ EntryPtr pent;
+ VisualPtr pVisual;
+ int i, n, size;
+
+ pVisual = pmap->pVisual;
+ size = pVisual->ColormapEntries;
+ defs = xalloc(size * sizeof(xColorItem));
+ if (!defs)
+ return;
+ n = 0;
+ pdef = defs;
+ if (pmap->class == DirectColor)
+ {
+ for (i = 0; i < size; i++)
+ {
+ if (!pmap->red[i].refcnt &&
+ !pmap->green[i].refcnt &&
+ !pmap->blue[i].refcnt)
+ continue;
+ pdef->pixel = ((Pixel)i << pVisual->offsetRed) |
+ ((Pixel)i << pVisual->offsetGreen) |
+ ((Pixel)i << pVisual->offsetBlue);
+ pdef->red = pmap->red[i].co.local.red;
+ pdef->green = pmap->green[i].co.local.green;
+ pdef->blue = pmap->blue[i].co.local.blue;
+ pdef->flags = DoRed|DoGreen|DoBlue;
+ pdef++;
+ n++;
+ }
+ }
+ else
+ {
+ for (i = 0, pent = pmap->red; i < size; i++, pent++)
+ {
+ if (!pent->refcnt)
+ continue;
+ pdef->pixel = i;
+ if(pent->fShared)
+ {
+ pdef->red = pent->co.shco.red->color;
+ pdef->green = pent->co.shco.green->color;
+ pdef->blue = pent->co.shco.blue->color;
+ }
+ else
+ {
+ pdef->red = pent->co.local.red;
+ pdef->green = pent->co.local.green;
+ pdef->blue = pent->co.local.blue;
+ }
+ pdef->flags = DoRed|DoGreen|DoBlue;
+ pdef++;
+ n++;
+ }
+ }
+ if (n)
+ (*pmap->pScreen->StoreColors)(pmap, n, defs);
+ xfree(defs);
+}
+
+/* Get a read-only color from a ColorMap (probably slow for large maps)
+ * Returns by changing the value in pred, pgreen, pblue and pPix
+ */
+int
+AllocColor (ColormapPtr pmap,
+ unsigned short *pred, unsigned short *pgreen, unsigned short *pblue,
+ Pixel *pPix, int client)
+{
+ Pixel pixR, pixG, pixB;
+ int entries;
+ xrgb rgb;
+ int class;
+ VisualPtr pVisual;
+ int npix;
+ Pixel *ppix;
+
+ pVisual = pmap->pVisual;
+ (*pmap->pScreen->ResolveColor) (pred, pgreen, pblue, pVisual);
+ rgb.red = *pred;
+ rgb.green = *pgreen;
+ rgb.blue = *pblue;
+ class = pmap->class;
+ entries = pVisual->ColormapEntries;
+
+ /* If the colormap is being created, then we want to be able to change
+ * the colormap, even if it's a static type. Otherwise, we'd never be
+ * able to initialize static colormaps
+ */
+ if(pmap->flags & BeingCreated)
+ class |= DynamicClass;
+
+ /* If this is one of the static storage classes, and we're not initializing
+ * it, the best we can do is to find the closest color entry to the
+ * requested one and return that.
+ */
+ switch (class) {
+ case StaticColor:
+ case StaticGray:
+ /* Look up all three components in the same pmap */
+ *pPix = pixR = FindBestPixel(pmap->red, entries, &rgb, PSEUDOMAP);
+ *pred = pmap->red[pixR].co.local.red;
+ *pgreen = pmap->red[pixR].co.local.green;
+ *pblue = pmap->red[pixR].co.local.blue;
+ npix = pmap->numPixelsRed[client];
+ ppix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
+ (npix + 1) * sizeof(Pixel));
+ if (!ppix)
+ return (BadAlloc);
+ ppix[npix] = pixR;
+ pmap->clientPixelsRed[client] = ppix;
+ pmap->numPixelsRed[client]++;
+ break;
+
+ case TrueColor:
+ /* Look up each component in its own map, then OR them together */
+ pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP);
+ pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb, GREENMAP);
+ pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP);
+ *pPix = (pixR << pVisual->offsetRed) |
+ (pixG << pVisual->offsetGreen) |
+ (pixB << pVisual->offsetBlue) |
+ ALPHAMASK(pVisual);
+
+ *pred = pmap->red[pixR].co.local.red;
+ *pgreen = pmap->green[pixG].co.local.green;
+ *pblue = pmap->blue[pixB].co.local.blue;
+ npix = pmap->numPixelsRed[client];
+ ppix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
+ (npix + 1) * sizeof(Pixel));
+ if (!ppix)
+ return (BadAlloc);
+ ppix[npix] = pixR;
+ pmap->clientPixelsRed[client] = ppix;
+ npix = pmap->numPixelsGreen[client];
+ ppix = (Pixel *) xrealloc(pmap->clientPixelsGreen[client],
+ (npix + 1) * sizeof(Pixel));
+ if (!ppix)
+ return (BadAlloc);
+ ppix[npix] = pixG;
+ pmap->clientPixelsGreen[client] = ppix;
+ npix = pmap->numPixelsBlue[client];
+ ppix = (Pixel *) xrealloc(pmap->clientPixelsBlue[client],
+ (npix + 1) * sizeof(Pixel));
+ if (!ppix)
+ return (BadAlloc);
+ ppix[npix] = pixB;
+ pmap->clientPixelsBlue[client] = ppix;
+ pmap->numPixelsRed[client]++;
+ pmap->numPixelsGreen[client]++;
+ pmap->numPixelsBlue[client]++;
+ break;
+
+ case GrayScale:
+ case PseudoColor:
+ if (pmap->mid != pmap->pScreen->defColormap &&
+ pmap->pVisual->vid == pmap->pScreen->rootVisual)
+ {
+ ColormapPtr prootmap;
+ dixLookupResourceByType((pointer *)&prootmap, pmap->pScreen->defColormap,
+ RT_COLORMAP, clients[client], DixReadAccess);
+
+ if (pmap->class == prootmap->class)
+ FindColorInRootCmap (prootmap, prootmap->red, entries, &rgb,
+ pPix, PSEUDOMAP, AllComp);
+ }
+ if (FindColor(pmap, pmap->red, entries, &rgb, pPix, PSEUDOMAP,
+ client, AllComp) != Success)
+ return (BadAlloc);
+ break;
+
+ case DirectColor:
+ if (pmap->mid != pmap->pScreen->defColormap &&
+ pmap->pVisual->vid == pmap->pScreen->rootVisual)
+ {
+ ColormapPtr prootmap;
+ dixLookupResourceByType((pointer *)&prootmap, pmap->pScreen->defColormap,
+ RT_COLORMAP, clients[client], DixReadAccess);
+
+ if (pmap->class == prootmap->class)
+ {
+ pixR = (*pPix & pVisual->redMask) >> pVisual->offsetRed;
+ FindColorInRootCmap (prootmap, prootmap->red, entries, &rgb,
+ &pixR, REDMAP, RedComp);
+ pixG = (*pPix & pVisual->greenMask) >> pVisual->offsetGreen;
+ FindColorInRootCmap (prootmap, prootmap->green, entries, &rgb,
+ &pixG, GREENMAP, GreenComp);
+ pixB = (*pPix & pVisual->blueMask) >> pVisual->offsetBlue;
+ FindColorInRootCmap (prootmap, prootmap->blue, entries, &rgb,
+ &pixB, BLUEMAP, BlueComp);
+ *pPix = pixR | pixG | pixB;
+ }
+ }
+
+ pixR = (*pPix & pVisual->redMask) >> pVisual->offsetRed;
+ if (FindColor(pmap, pmap->red, NUMRED(pVisual), &rgb, &pixR, REDMAP,
+ client, RedComp) != Success)
+ return (BadAlloc);
+ pixG = (*pPix & pVisual->greenMask) >> pVisual->offsetGreen;
+ if (FindColor(pmap, pmap->green, NUMGREEN(pVisual), &rgb, &pixG,
+ GREENMAP, client, GreenComp) != Success)
+ {
+ (void)FreeCo(pmap, client, REDMAP, 1, &pixR, (Pixel)0);
+ return (BadAlloc);
+ }
+ pixB = (*pPix & pVisual->blueMask) >> pVisual->offsetBlue;
+ if (FindColor(pmap, pmap->blue, NUMBLUE(pVisual), &rgb, &pixB, BLUEMAP,
+ client, BlueComp) != Success)
+ {
+ (void)FreeCo(pmap, client, GREENMAP, 1, &pixG, (Pixel)0);
+ (void)FreeCo(pmap, client, REDMAP, 1, &pixR, (Pixel)0);
+ return (BadAlloc);
+ }
+ *pPix = pixR | pixG | pixB | ALPHAMASK(pVisual);
+
+ break;
+ }
+
+ /* if this is the client's first pixel in this colormap, tell the
+ * resource manager that the client has pixels in this colormap which
+ * should be freed when the client dies */
+ if ((pmap->numPixelsRed[client] == 1) &&
+ (CLIENT_ID(pmap->mid) != client) &&
+ !(pmap->flags & BeingCreated))
+ {
+ colorResource *pcr;
+
+ pcr = xalloc(sizeof(colorResource));
+ if (!pcr)
+ {
+ (void)FreeColors(pmap, client, 1, pPix, (Pixel)0);
+ return (BadAlloc);
+ }
+ pcr->mid = pmap->mid;
+ pcr->client = client;
+ if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
+ return (BadAlloc);
+ }
+ return (Success);
+}
+
+/*
+ * FakeAllocColor -- fake an AllocColor request by
+ * returning a free pixel if availible, otherwise returning
+ * the closest matching pixel. This is used by the mi
+ * software sprite code to recolor cursors. A nice side-effect
+ * is that this routine will never return failure.
+ */
+
+void
+FakeAllocColor (ColormapPtr pmap, xColorItem *item)
+{
+ Pixel pixR, pixG, pixB;
+ Pixel temp;
+ int entries;
+ xrgb rgb;
+ int class;
+ VisualPtr pVisual;
+
+ pVisual = pmap->pVisual;
+ rgb.red = item->red;
+ rgb.green = item->green;
+ rgb.blue = item->blue;
+ (*pmap->pScreen->ResolveColor) (&rgb.red, &rgb.green, &rgb.blue, pVisual);
+ class = pmap->class;
+ entries = pVisual->ColormapEntries;
+
+ switch (class) {
+ case GrayScale:
+ case PseudoColor:
+ temp = 0;
+ item->pixel = 0;
+ if (FindColor(pmap, pmap->red, entries, &rgb, &temp, PSEUDOMAP,
+ -1, AllComp) == Success) {
+ item->pixel = temp;
+ break;
+ }
+ /* fall through ... */
+ case StaticColor:
+ case StaticGray:
+ item->pixel = FindBestPixel(pmap->red, entries, &rgb, PSEUDOMAP);
+ break;
+
+ case DirectColor:
+ /* Look up each component in its own map, then OR them together */
+ pixR = (item->pixel & pVisual->redMask) >> pVisual->offsetRed;
+ pixG = (item->pixel & pVisual->greenMask) >> pVisual->offsetGreen;
+ pixB = (item->pixel & pVisual->blueMask) >> pVisual->offsetBlue;
+ if (FindColor(pmap, pmap->red, NUMRED(pVisual), &rgb, &pixR, REDMAP,
+ -1, RedComp) != Success)
+ pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP)
+ << pVisual->offsetRed;
+ if (FindColor(pmap, pmap->green, NUMGREEN(pVisual), &rgb, &pixG,
+ GREENMAP, -1, GreenComp) != Success)
+ pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb,
+ GREENMAP) << pVisual->offsetGreen;
+ if (FindColor(pmap, pmap->blue, NUMBLUE(pVisual), &rgb, &pixB, BLUEMAP,
+ -1, BlueComp) != Success)
+ pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP)
+ << pVisual->offsetBlue;
+ item->pixel = pixR | pixG | pixB;
+ break;
+
+ case TrueColor:
+ /* Look up each component in its own map, then OR them together */
+ pixR = FindBestPixel(pmap->red, NUMRED(pVisual), &rgb, REDMAP);
+ pixG = FindBestPixel(pmap->green, NUMGREEN(pVisual), &rgb, GREENMAP);
+ pixB = FindBestPixel(pmap->blue, NUMBLUE(pVisual), &rgb, BLUEMAP);
+ item->pixel = (pixR << pVisual->offsetRed) |
+ (pixG << pVisual->offsetGreen) |
+ (pixB << pVisual->offsetBlue);
+ break;
+ }
+}
+
+/* free a pixel value obtained from FakeAllocColor */
+void
+FakeFreeColor(ColormapPtr pmap, Pixel pixel)
+{
+ VisualPtr pVisual;
+ Pixel pixR, pixG, pixB;
+
+ switch (pmap->class) {
+ case GrayScale:
+ case PseudoColor:
+ if (pmap->red[pixel].refcnt == AllocTemporary)
+ pmap->red[pixel].refcnt = 0;
+ break;
+ case DirectColor:
+ pVisual = pmap->pVisual;
+ pixR = (pixel & pVisual->redMask) >> pVisual->offsetRed;
+ pixG = (pixel & pVisual->greenMask) >> pVisual->offsetGreen;
+ pixB = (pixel & pVisual->blueMask) >> pVisual->offsetBlue;
+ if (pmap->red[pixR].refcnt == AllocTemporary)
+ pmap->red[pixR].refcnt = 0;
+ if (pmap->green[pixG].refcnt == AllocTemporary)
+ pmap->green[pixG].refcnt = 0;
+ if (pmap->blue[pixB].refcnt == AllocTemporary)
+ pmap->blue[pixB].refcnt = 0;
+ break;
+ }
+}
+
+typedef unsigned short BigNumUpper;
+typedef unsigned long BigNumLower;
+
+#define BIGNUMLOWERBITS 24
+#define BIGNUMUPPERBITS 16
+#define BIGNUMLOWER (1 << BIGNUMLOWERBITS)
+#define BIGNUMUPPER (1 << BIGNUMUPPERBITS)
+#define UPPERPART(i) ((i) >> BIGNUMLOWERBITS)
+#define LOWERPART(i) ((i) & (BIGNUMLOWER - 1))
+
+typedef struct _bignum {
+ BigNumUpper upper;
+ BigNumLower lower;
+} BigNumRec, *BigNumPtr;
+
+#define BigNumGreater(x,y) (((x)->upper > (y)->upper) ||\
+ ((x)->upper == (y)->upper && (x)->lower > (y)->lower))
+
+#define UnsignedToBigNum(u,r) (((r)->upper = UPPERPART(u)), \
+ ((r)->lower = LOWERPART(u)))
+
+#define MaxBigNum(r) (((r)->upper = BIGNUMUPPER-1), \
+ ((r)->lower = BIGNUMLOWER-1))
+
+static void
+BigNumAdd (BigNumPtr x, BigNumPtr y, BigNumPtr r)
+{
+ BigNumLower lower, carry = 0;
+
+ lower = x->lower + y->lower;
+ if (lower >= BIGNUMLOWER) {
+ lower -= BIGNUMLOWER;
+ carry = 1;
+ }
+ r->lower = lower;
+ r->upper = x->upper + y->upper + carry;
+}
+
+static Pixel
+FindBestPixel(EntryPtr pentFirst, int size, xrgb *prgb, int channel)
+{
+ EntryPtr pent;
+ Pixel pixel, final;
+ long dr, dg, db;
+ unsigned long sq;
+ BigNumRec minval, sum, temp;
+
+ final = 0;
+ MaxBigNum(&minval);
+ /* look for the minimal difference */
+ for (pent = pentFirst, pixel = 0; pixel < size; pent++, pixel++)
+ {
+ dr = dg = db = 0;
+ switch(channel)
+ {
+ case PSEUDOMAP:
+ dg = (long) pent->co.local.green - prgb->green;
+ db = (long) pent->co.local.blue - prgb->blue;
+ case REDMAP:
+ dr = (long) pent->co.local.red - prgb->red;
+ break;
+ case GREENMAP:
+ dg = (long) pent->co.local.green - prgb->green;
+ break;
+ case BLUEMAP:
+ db = (long) pent->co.local.blue - prgb->blue;
+ break;
+ }
+ sq = dr * dr;
+ UnsignedToBigNum (sq, &sum);
+ sq = dg * dg;
+ UnsignedToBigNum (sq, &temp);
+ BigNumAdd (&sum, &temp, &sum);
+ sq = db * db;
+ UnsignedToBigNum (sq, &temp);
+ BigNumAdd (&sum, &temp, &sum);
+ if (BigNumGreater (&minval, &sum))
+ {
+ final = pixel;
+ minval = sum;
+ }
+ }
+ return(final);
+}
+
+static void
+FindColorInRootCmap (ColormapPtr pmap, EntryPtr pentFirst, int size,
+ xrgb *prgb, Pixel *pPixel, int channel,
+ ColorCompareProcPtr comp)
+{
+ EntryPtr pent;
+ Pixel pixel;
+ int count;
+
+ if ((pixel = *pPixel) >= size)
+ pixel = 0;
+ for (pent = pentFirst + pixel, count = size; --count >= 0; pent++, pixel++)
+ {
+ if (pent->refcnt > 0 && (*comp) (pent, prgb))
+ {
+ switch (channel)
+ {
+ case REDMAP:
+ pixel <<= pmap->pVisual->offsetRed;
+ break;
+ case GREENMAP:
+ pixel <<= pmap->pVisual->offsetGreen;
+ break;
+ case BLUEMAP:
+ pixel <<= pmap->pVisual->offsetBlue;
+ break;
+ default: /* PSEUDOMAP */
+ break;
+ }
+ *pPixel = pixel;
+ }
+ }
+}
+
+/* Tries to find a color in pmap that exactly matches the one requested in prgb
+ * if it can't it allocates one.
+ * Starts looking at pentFirst + *pPixel, so if you want a specific pixel,
+ * load *pPixel with that value, otherwise set it to 0
+ */
+int
+FindColor (ColormapPtr pmap, EntryPtr pentFirst, int size, xrgb *prgb,
+ Pixel *pPixel, int channel, int client,
+ ColorCompareProcPtr comp)
+{
+ EntryPtr pent;
+ Bool foundFree;
+ Pixel pixel, Free = 0;
+ int npix, count, *nump = NULL;
+ Pixel **pixp = NULL, *ppix;
+ xColorItem def;
+
+ foundFree = FALSE;
+
+ if((pixel = *pPixel) >= size)
+ pixel = 0;
+ /* see if there is a match, and also look for a free entry */
+ for (pent = pentFirst + pixel, count = size; --count >= 0; )
+ {
+ if (pent->refcnt > 0)
+ {
+ if ((*comp) (pent, prgb))
+ {
+ if (client >= 0)
+ pent->refcnt++;
+ *pPixel = pixel;
+ switch(channel)
+ {
+ case REDMAP:
+ *pPixel <<= pmap->pVisual->offsetRed;
+ case PSEUDOMAP:
+ break;
+ case GREENMAP:
+ *pPixel <<= pmap->pVisual->offsetGreen;
+ break;
+ case BLUEMAP:
+ *pPixel <<= pmap->pVisual->offsetBlue;
+ break;
+ }
+ goto gotit;
+ }
+ }
+ else if (!foundFree && pent->refcnt == 0)
+ {
+ Free = pixel;
+ foundFree = TRUE;
+ /* If we're initializing the colormap, then we are looking for
+ * the first free cell we can find, not to minimize the number
+ * of entries we use. So don't look any further. */
+ if(pmap->flags & BeingCreated)
+ break;
+ }
+ pixel++;
+ if(pixel >= size)
+ {
+ pent = pentFirst;
+ pixel = 0;
+ }
+ else
+ pent++;
+ }
+
+ /* If we got here, we didn't find a match. If we also didn't find
+ * a free entry, we're out of luck. Otherwise, we'll usurp a free
+ * entry and fill it in */
+ if (!foundFree)
+ return (BadAlloc);
+ pent = pentFirst + Free;
+ pent->fShared = FALSE;
+ pent->refcnt = (client >= 0) ? 1 : AllocTemporary;
+
+ switch (channel)
+ {
+ case PSEUDOMAP:
+ pent->co.local.red = prgb->red;
+ pent->co.local.green = prgb->green;
+ pent->co.local.blue = prgb->blue;
+ def.red = prgb->red;
+ def.green = prgb->green;
+ def.blue = prgb->blue;
+ def.flags = (DoRed|DoGreen|DoBlue);
+ if (client >= 0)
+ pmap->freeRed--;
+ def.pixel = Free;
+ break;
+
+ case REDMAP:
+ pent->co.local.red = prgb->red;
+ def.red = prgb->red;
+ def.green = pmap->green[0].co.local.green;
+ def.blue = pmap->blue[0].co.local.blue;
+ def.flags = DoRed;
+ if (client >= 0)
+ pmap->freeRed--;
+ def.pixel = Free << pmap->pVisual->offsetRed;
+ break;
+
+ case GREENMAP:
+ pent->co.local.green = prgb->green;
+ def.red = pmap->red[0].co.local.red;
+ def.green = prgb->green;
+ def.blue = pmap->blue[0].co.local.blue;
+ def.flags = DoGreen;
+ if (client >= 0)
+ pmap->freeGreen--;
+ def.pixel = Free << pmap->pVisual->offsetGreen;
+ break;
+
+ case BLUEMAP:
+ pent->co.local.blue = prgb->blue;
+ def.red = pmap->red[0].co.local.red;
+ def.green = pmap->green[0].co.local.green;
+ def.blue = prgb->blue;
+ def.flags = DoBlue;
+ if (client >= 0)
+ pmap->freeBlue--;
+ def.pixel = Free << pmap->pVisual->offsetBlue;
+ break;
+ }
+ (*pmap->pScreen->StoreColors) (pmap, 1, &def);
+ pixel = Free;
+ *pPixel = def.pixel;
+
+gotit:
+ if (pmap->flags & BeingCreated || client == -1)
+ return(Success);
+ /* Now remember the pixel, for freeing later */
+ switch (channel)
+ {
+ case PSEUDOMAP:
+ case REDMAP:
+ nump = pmap->numPixelsRed;
+ pixp = pmap->clientPixelsRed;
+ break;
+
+ case GREENMAP:
+ nump = pmap->numPixelsGreen;
+ pixp = pmap->clientPixelsGreen;
+ break;
+
+ case BLUEMAP:
+ nump = pmap->numPixelsBlue;
+ pixp = pmap->clientPixelsBlue;
+ break;
+ }
+ npix = nump[client];
+ ppix = (Pixel *) xrealloc (pixp[client], (npix + 1) * sizeof(Pixel));
+ if (!ppix)
+ {
+ pent->refcnt--;
+ if (!pent->fShared)
+ switch (channel)
+ {
+ case PSEUDOMAP:
+ case REDMAP:
+ pmap->freeRed++;
+ break;
+ case GREENMAP:
+ pmap->freeGreen++;
+ break;
+ case BLUEMAP:
+ pmap->freeBlue++;
+ break;
+ }
+ return(BadAlloc);
+ }
+ ppix[npix] = pixel;
+ pixp[client] = ppix;
+ nump[client]++;
+
+ return(Success);
+}
+
+/* Comparison functions -- passed to FindColor to determine if an
+ * entry is already the color we're looking for or not */
+static int
+AllComp (EntryPtr pent, xrgb *prgb)
+{
+ if((pent->co.local.red == prgb->red) &&
+ (pent->co.local.green == prgb->green) &&
+ (pent->co.local.blue == prgb->blue) )
+ return (1);
+ return (0);
+}
+
+static int
+RedComp (EntryPtr pent, xrgb *prgb)
+{
+ if (pent->co.local.red == prgb->red)
+ return (1);
+ return (0);
+}
+
+static int
+GreenComp (EntryPtr pent, xrgb *prgb)
+{
+ if (pent->co.local.green == prgb->green)
+ return (1);
+ return (0);
+}
+
+static int
+BlueComp (EntryPtr pent, xrgb *prgb)
+{
+ if (pent->co.local.blue == prgb->blue)
+ return (1);
+ return (0);
+}
+
+
+/* Read the color value of a cell */
+
+int
+QueryColors (ColormapPtr pmap, int count, Pixel *ppixIn, xrgb *prgbList)
+{
+ Pixel *ppix, pixel;
+ xrgb *prgb;
+ VisualPtr pVisual;
+ EntryPtr pent;
+ Pixel i;
+ int errVal = Success;
+
+ pVisual = pmap->pVisual;
+ if ((pmap->class | DynamicClass) == DirectColor)
+ {
+ int numred, numgreen, numblue;
+ Pixel rgbbad;
+
+ numred = NUMRED(pVisual);
+ numgreen = NUMGREEN(pVisual);
+ numblue = NUMBLUE(pVisual);
+ rgbbad = ~RGBMASK(pVisual);
+ for( ppix = ppixIn, prgb = prgbList; --count >= 0; ppix++, prgb++)
+ {
+ pixel = *ppix;
+ if (pixel & rgbbad) {
+ clientErrorValue = pixel;
+ errVal = BadValue;
+ continue;
+ }
+ i = (pixel & pVisual->redMask) >> pVisual->offsetRed;
+ if (i >= numred)
+ {
+ clientErrorValue = pixel;
+ errVal = BadValue;
+ continue;
+ }
+ prgb->red = pmap->red[i].co.local.red;
+ i = (pixel & pVisual->greenMask) >> pVisual->offsetGreen;
+ if (i >= numgreen)
+ {
+ clientErrorValue = pixel;
+ errVal = BadValue;
+ continue;
+ }
+ prgb->green = pmap->green[i].co.local.green;
+ i = (pixel & pVisual->blueMask) >> pVisual->offsetBlue;
+ if (i >= numblue)
+ {
+ clientErrorValue = pixel;
+ errVal = BadValue;
+ continue;
+ }
+ prgb->blue = pmap->blue[i].co.local.blue;
+ }
+ }
+ else
+ {
+ for( ppix = ppixIn, prgb = prgbList; --count >= 0; ppix++, prgb++)
+ {
+ pixel = *ppix;
+ if (pixel >= pVisual->ColormapEntries)
+ {
+ clientErrorValue = pixel;
+ errVal = BadValue;
+ }
+ else
+ {
+ pent = (EntryPtr)&pmap->red[pixel];
+ if (pent->fShared)
+ {
+ prgb->red = pent->co.shco.red->color;
+ prgb->green = pent->co.shco.green->color;
+ prgb->blue = pent->co.shco.blue->color;
+ }
+ else
+ {
+ prgb->red = pent->co.local.red;
+ prgb->green = pent->co.local.green;
+ prgb->blue = pent->co.local.blue;
+ }
+ }
+ }
+ }
+ return (errVal);
+}
+
+static void
+FreePixels(ColormapPtr pmap, int client)
+{
+ Pixel *ppix, *ppixStart;
+ int n;
+ int class;
+
+ class = pmap->class;
+ ppixStart = pmap->clientPixelsRed[client];
+ if (class & DynamicClass)
+ {
+ n = pmap->numPixelsRed[client];
+ for (ppix = ppixStart; --n >= 0; )
+ {
+ FreeCell(pmap, *ppix, REDMAP);
+ ppix++;
+ }
+ }
+
+ xfree(ppixStart);
+ pmap->clientPixelsRed[client] = (Pixel *) NULL;
+ pmap->numPixelsRed[client] = 0;
+ if ((class | DynamicClass) == DirectColor)
+ {
+ ppixStart = pmap->clientPixelsGreen[client];
+ if (class & DynamicClass)
+ for (ppix = ppixStart, n = pmap->numPixelsGreen[client]; --n >= 0;)
+ FreeCell(pmap, *ppix++, GREENMAP);
+ xfree(ppixStart);
+ pmap->clientPixelsGreen[client] = (Pixel *) NULL;
+ pmap->numPixelsGreen[client] = 0;
+
+ ppixStart = pmap->clientPixelsBlue[client];
+ if (class & DynamicClass)
+ for (ppix = ppixStart, n = pmap->numPixelsBlue[client]; --n >= 0; )
+ FreeCell(pmap, *ppix++, BLUEMAP);
+ xfree(ppixStart);
+ pmap->clientPixelsBlue[client] = (Pixel *) NULL;
+ pmap->numPixelsBlue[client] = 0;
+ }
+}
+
+/**
+ * Frees all of a client's colors and cells.
+ *
+ * \param value must conform to DeleteType
+ * \unused fakeid
+ */
+int
+FreeClientPixels (pointer value, XID fakeid)
+{
+ pointer pmap;
+ colorResource *pcr = value;
+ int rc;
+
+ rc = dixLookupResourceByType(&pmap, pcr->mid, RT_COLORMAP, serverClient,
+ DixRemoveAccess);
+ if (rc == Success)
+ FreePixels((ColormapPtr)pmap, pcr->client);
+ xfree(pcr);
+ return Success;
+}
+
+int
+AllocColorCells (int client, ColormapPtr pmap, int colors, int planes,
+ Bool contig, Pixel *ppix, Pixel *masks)
+{
+ Pixel rmask, gmask, bmask, *ppixFirst, r, g, b;
+ int n, class;
+ int ok;
+ int oldcount;
+ colorResource *pcr = (colorResource *)NULL;
+
+ class = pmap->class;
+ if (!(class & DynamicClass))
+ return (BadAlloc); /* Shouldn't try on this type */
+ oldcount = pmap->numPixelsRed[client];
+ if (pmap->class == DirectColor)
+ oldcount += pmap->numPixelsGreen[client] + pmap->numPixelsBlue[client];
+ if (!oldcount && (CLIENT_ID(pmap->mid) != client))
+ {
+ pcr = xalloc(sizeof(colorResource));
+ if (!pcr)
+ return (BadAlloc);
+ }
+
+ if (pmap->class == DirectColor)
+ {
+ ok = AllocDirect (client, pmap, colors, planes, planes, planes,
+ contig, ppix, &rmask, &gmask, &bmask);
+ if(ok == Success)
+ {
+ for (r = g = b = 1, n = planes; --n >= 0; r += r, g += g, b += b)
+ {
+ while(!(rmask & r))
+ r += r;
+ while(!(gmask & g))
+ g += g;
+ while(!(bmask & b))
+ b += b;
+ *masks++ = r | g | b;
+ }
+ }
+ }
+ else
+ {
+ ok = AllocPseudo (client, pmap, colors, planes, contig, ppix, &rmask,
+ &ppixFirst);
+ if(ok == Success)
+ {
+ for (r = 1, n = planes; --n >= 0; r += r)
+ {
+ while(!(rmask & r))
+ r += r;
+ *masks++ = r;
+ }
+ }
+ }
+
+ /* if this is the client's first pixels in this colormap, tell the
+ * resource manager that the client has pixels in this colormap which
+ * should be freed when the client dies */
+ if ((ok == Success) && pcr)
+ {
+ pcr->mid = pmap->mid;
+ pcr->client = client;
+ if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
+ ok = BadAlloc;
+ } else if (pcr)
+ xfree(pcr);
+
+ return (ok);
+}
+
+
+int
+AllocColorPlanes (int client, ColormapPtr pmap, int colors,
+ int r, int g, int b, Bool contig, Pixel *pixels,
+ Pixel *prmask, Pixel *pgmask, Pixel *pbmask)
+{
+ int ok;
+ Pixel mask, *ppixFirst;
+ Pixel shift;
+ int i;
+ int class;
+ int oldcount;
+ colorResource *pcr = (colorResource *)NULL;
+
+ class = pmap->class;
+ if (!(class & DynamicClass))
+ return (BadAlloc); /* Shouldn't try on this type */
+ oldcount = pmap->numPixelsRed[client];
+ if (class == DirectColor)
+ oldcount += pmap->numPixelsGreen[client] + pmap->numPixelsBlue[client];
+ if (!oldcount && (CLIENT_ID(pmap->mid) != client))
+ {
+ pcr = xalloc(sizeof(colorResource));
+ if (!pcr)
+ return (BadAlloc);
+ }
+
+ if (class == DirectColor)
+ {
+ ok = AllocDirect (client, pmap, colors, r, g, b, contig, pixels,
+ prmask, pgmask, pbmask);
+ }
+ else
+ {
+ /* Allocate the proper pixels */
+ /* XXX This is sort of bad, because of contig is set, we force all
+ * r + g + b bits to be contiguous. Should only force contiguity
+ * per mask
+ */
+ ok = AllocPseudo (client, pmap, colors, r + g + b, contig, pixels,
+ &mask, &ppixFirst);
+
+ if(ok == Success)
+ {
+ /* now split that mask into three */
+ *prmask = *pgmask = *pbmask = 0;
+ shift = 1;
+ for (i = r; --i >= 0; shift += shift)
+ {
+ while (!(mask & shift))
+ shift += shift;
+ *prmask |= shift;
+ }
+ for (i = g; --i >= 0; shift += shift)
+ {
+ while (!(mask & shift))
+ shift += shift;
+ *pgmask |= shift;
+ }
+ for (i = b; --i >= 0; shift += shift)
+ {
+ while (!(mask & shift))
+ shift += shift;
+ *pbmask |= shift;
+ }
+
+ /* set up the shared color cells */
+ if (!AllocShared(pmap, pixels, colors, r, g, b,
+ *prmask, *pgmask, *pbmask, ppixFirst))
+ {
+ (void)FreeColors(pmap, client, colors, pixels, mask);
+ ok = BadAlloc;
+ }
+ }
+ }
+
+ /* if this is the client's first pixels in this colormap, tell the
+ * resource manager that the client has pixels in this colormap which
+ * should be freed when the client dies */
+ if ((ok == Success) && pcr)
+ {
+ pcr->mid = pmap->mid;
+ pcr->client = client;
+ if (!AddResource(FakeClientID(client), RT_CMAPENTRY, (pointer)pcr))
+ ok = BadAlloc;
+ } else if (pcr)
+ xfree(pcr);
+
+ return (ok);
+}
+
+static int
+AllocDirect (int client, ColormapPtr pmap, int c, int r, int g, int b, Bool contig,
+ Pixel *pixels, Pixel *prmask, Pixel *pgmask, Pixel *pbmask)
+{
+ Pixel *ppixRed, *ppixGreen, *ppixBlue;
+ Pixel *ppix, *pDst, *p;
+ int npix, npixR, npixG, npixB;
+ Bool okR, okG, okB;
+ Pixel *rpix = 0, *gpix = 0, *bpix = 0;
+
+ npixR = c << r;
+ npixG = c << g;
+ npixB = c << b;
+ if ((r >= 32) || (g >= 32) || (b >= 32) ||
+ (npixR > pmap->freeRed) || (npixR < c) ||
+ (npixG > pmap->freeGreen) || (npixG < c) ||
+ (npixB > pmap->freeBlue) || (npixB < c))
+ return BadAlloc;
+
+ /* start out with empty pixels */
+ for(p = pixels; p < pixels + c; p++)
+ *p = 0;
+
+ ppixRed = xalloc(npixR * sizeof(Pixel));
+ ppixGreen = xalloc(npixG * sizeof(Pixel));
+ ppixBlue = xalloc(npixB * sizeof(Pixel));
+ if (!ppixRed || !ppixGreen || !ppixBlue)
+ {
+ if (ppixBlue) xfree(ppixBlue);
+ if (ppixGreen) xfree(ppixGreen);
+ if (ppixRed) xfree(ppixRed);
+ return(BadAlloc);
+ }
+
+ okR = AllocCP(pmap, pmap->red, c, r, contig, ppixRed, prmask);
+ okG = AllocCP(pmap, pmap->green, c, g, contig, ppixGreen, pgmask);
+ okB = AllocCP(pmap, pmap->blue, c, b, contig, ppixBlue, pbmask);
+
+ if (okR && okG && okB)
+ {
+ rpix = (Pixel *) xrealloc(pmap->clientPixelsRed[client],
+ (pmap->numPixelsRed[client] + (c << r)) *
+ sizeof(Pixel));
+ if (rpix)
+ pmap->clientPixelsRed[client] = rpix;
+ gpix = (Pixel *) xrealloc(pmap->clientPixelsGreen[client],
+ (pmap->numPixelsGreen[client] + (c << g)) *
+ sizeof(Pixel));
+ if (gpix)
+ pmap->clientPixelsGreen[client] = gpix;
+ bpix = (Pixel *) xrealloc(pmap->clientPixelsBlue[client],
+ (pmap->numPixelsBlue[client] + (c << b)) *
+ sizeof(Pixel));
+ if (bpix)
+ pmap->clientPixelsBlue[client] = bpix;
+ }
+
+ if (!okR || !okG || !okB || !rpix || !gpix || !bpix)
+ {
+ if (okR)
+ for(ppix = ppixRed, npix = npixR; --npix >= 0; ppix++)
+ pmap->red[*ppix].refcnt = 0;
+ if (okG)
+ for(ppix = ppixGreen, npix = npixG; --npix >= 0; ppix++)
+ pmap->green[*ppix].refcnt = 0;
+ if (okB)
+ for(ppix = ppixBlue, npix = npixB; --npix >= 0; ppix++)
+ pmap->blue[*ppix].refcnt = 0;
+ xfree(ppixBlue);
+ xfree(ppixGreen);
+ xfree(ppixRed);
+ return(BadAlloc);
+ }
+
+ *prmask <<= pmap->pVisual->offsetRed;
+ *pgmask <<= pmap->pVisual->offsetGreen;
+ *pbmask <<= pmap->pVisual->offsetBlue;
+
+ ppix = rpix + pmap->numPixelsRed[client];
+ for (pDst = pixels, p = ppixRed; p < ppixRed + npixR; p++)
+ {
+ *ppix++ = *p;
+ if(p < ppixRed + c)
+ *pDst++ |= *p << pmap->pVisual->offsetRed;
+ }
+ pmap->numPixelsRed[client] += npixR;
+ pmap->freeRed -= npixR;
+
+ ppix = gpix + pmap->numPixelsGreen[client];
+ for (pDst = pixels, p = ppixGreen; p < ppixGreen + npixG; p++)
+ {
+ *ppix++ = *p;
+ if(p < ppixGreen + c)
+ *pDst++ |= *p << pmap->pVisual->offsetGreen;
+ }
+ pmap->numPixelsGreen[client] += npixG;
+ pmap->freeGreen -= npixG;
+
+ ppix = bpix + pmap->numPixelsBlue[client];
+ for (pDst = pixels, p = ppixBlue; p < ppixBlue + npixB; p++)
+ {
+ *ppix++ = *p;
+ if(p < ppixBlue + c)
+ *pDst++ |= *p << pmap->pVisual->offsetBlue;
+ }
+ pmap->numPixelsBlue[client] += npixB;
+ pmap->freeBlue -= npixB;
+
+
+ for (pDst = pixels; pDst < pixels + c; pDst++)
+ *pDst |= ALPHAMASK(pmap->pVisual);
+
+ xfree(ppixBlue);
+ xfree(ppixGreen);
+ xfree(ppixRed);
+
+ return (Success);
+}
+
+static int
+AllocPseudo (int client, ColormapPtr pmap, int c, int r, Bool contig,
+ Pixel *pixels, Pixel *pmask, Pixel **pppixFirst)
+{
+ Pixel *ppix, *p, *pDst, *ppixTemp;
+ int npix;
+ Bool ok;
+
+ npix = c << r;
+ if ((r >= 32) || (npix > pmap->freeRed) || (npix < c))
+ return(BadAlloc);
+ if(!(ppixTemp = xalloc(npix * sizeof(Pixel))))
+ return(BadAlloc);
+ ok = AllocCP(pmap, pmap->red, c, r, contig, ppixTemp, pmask);
+
+ if (ok)
+ {
+
+ /* all the allocated pixels are added to the client pixel list,
+ * but only the unique ones are returned to the client */
+ ppix = (Pixel *)xrealloc(pmap->clientPixelsRed[client],
+ (pmap->numPixelsRed[client] + npix) * sizeof(Pixel));
+ if (!ppix)
+ {
+ for (p = ppixTemp; p < ppixTemp + npix; p++)
+ pmap->red[*p].refcnt = 0;
+ return (BadAlloc);
+ }
+ pmap->clientPixelsRed[client] = ppix;
+ ppix += pmap->numPixelsRed[client];
+ *pppixFirst = ppix;
+ pDst = pixels;
+ for (p = ppixTemp; p < ppixTemp + npix; p++)
+ {
+ *ppix++ = *p;
+ if(p < ppixTemp + c)
+ *pDst++ = *p;
+ }
+ pmap->numPixelsRed[client] += npix;
+ pmap->freeRed -= npix;
+ }
+ xfree(ppixTemp);
+ return (ok ? Success : BadAlloc);
+}
+
+/* Allocates count << planes pixels from colormap pmap for client. If
+ * contig, then the plane mask is made of consecutive bits. Returns
+ * all count << pixels in the array pixels. The first count of those
+ * pixels are the unique pixels. *pMask has the mask to Or with the
+ * unique pixels to get the rest of them.
+ *
+ * Returns True iff all pixels could be allocated
+ * All cells allocated will have refcnt set to AllocPrivate and shared to FALSE
+ * (see AllocShared for why we care)
+ */
+static Bool
+AllocCP (ColormapPtr pmap, EntryPtr pentFirst, int count, int planes,
+ Bool contig, Pixel *pixels, Pixel *pMask)
+{
+ EntryPtr ent;
+ Pixel pixel, base, entries, maxp, save;
+ int dplanes, found;
+ Pixel *ppix;
+ Pixel mask;
+ Pixel finalmask;
+
+ dplanes = pmap->pVisual->nplanes;
+
+ /* Easy case. Allocate pixels only */
+ if (planes == 0)
+ {
+ /* allocate writable entries */
+ ppix = pixels;
+ ent = pentFirst;
+ pixel = 0;
+ while (--count >= 0)
+ {
+ /* Just find count unallocated cells */
+ while (ent->refcnt)
+ {
+ ent++;
+ pixel++;
+ }
+ ent->refcnt = AllocPrivate;
+ *ppix++ = pixel;
+ ent->fShared = FALSE;
+ }
+ *pMask = 0;
+ return (TRUE);
+ }
+ else if (planes > dplanes)
+ {
+ return (FALSE);
+ }
+
+ /* General case count pixels * 2 ^ planes cells to be allocated */
+
+ /* make room for new pixels */
+ ent = pentFirst;
+
+ /* first try for contiguous planes, since it's fastest */
+ for (mask = (((Pixel)1) << planes) - 1, base = 1, dplanes -= (planes - 1);
+ --dplanes >= 0;
+ mask += mask, base += base)
+ {
+ ppix = pixels;
+ found = 0;
+ pixel = 0;
+ entries = pmap->pVisual->ColormapEntries - mask;
+ while (pixel < entries)
+ {
+ save = pixel;
+ maxp = pixel + mask + base;
+ /* check if all are free */
+ while (pixel != maxp && ent[pixel].refcnt == 0)
+ pixel += base;
+ if (pixel == maxp)
+ {
+ /* this one works */
+ *ppix++ = save;
+ found++;
+ if (found == count)
+ {
+ /* found enough, allocate them all */
+ while (--count >= 0)
+ {
+ pixel = pixels[count];
+ maxp = pixel + mask;
+ while (1)
+ {
+ ent[pixel].refcnt = AllocPrivate;
+ ent[pixel].fShared = FALSE;
+ if (pixel == maxp)
+ break;
+ pixel += base;
+ *ppix++ = pixel;
+ }
+ }
+ *pMask = mask;
+ return (TRUE);
+ }
+ }
+ pixel = save + 1;
+ if (pixel & mask)
+ pixel += mask;
+ }
+ }
+
+ dplanes = pmap->pVisual->nplanes;
+ if (contig || planes == 1 || dplanes < 3)
+ return (FALSE);
+
+ /* this will be very slow for large maps, need a better algorithm */
+
+ /*
+ we can generate the smallest and largest numbers that fits in dplanes
+ bits and contain exactly planes bits set as follows. First, we need to
+ check that it is possible to generate such a mask at all.
+ (Non-contiguous masks need one more bit than contiguous masks). Then
+ the smallest such mask consists of the rightmost planes-1 bits set, then
+ a zero, then a one in position planes + 1. The formula is
+ (3 << (planes-1)) -1
+ The largest such masks consists of the leftmost planes-1 bits set, then
+ a zero, then a one bit in position dplanes-planes-1. If dplanes is
+ smaller than 32 (the number of bits in a word) then the formula is:
+ (1<<dplanes) - (1<<(dplanes-planes+1) + (1<<dplanes-planes-1)
+ If dplanes = 32, then we can't calculate (1<<dplanes) and we have
+ to use:
+ ( (1<<(planes-1)) - 1) << (dplanes-planes+1) + (1<<(dplanes-planes-1))
+
+ << Thank you, Loretta>>>
+
+ */
+
+ finalmask =
+ (((((Pixel)1)<<(planes-1)) - 1) << (dplanes-planes+1)) +
+ (((Pixel)1)<<(dplanes-planes-1));
+ for (mask = (((Pixel)3) << (planes -1)) - 1; mask <= finalmask; mask++)
+ {
+ /* next 3 magic statements count number of ones (HAKMEM #169) */
+ pixel = (mask >> 1) & 033333333333;
+ pixel = mask - pixel - ((pixel >> 1) & 033333333333);
+ if ((((pixel + (pixel >> 3)) & 030707070707) % 077) != planes)
+ continue;
+ ppix = pixels;
+ found = 0;
+ entries = pmap->pVisual->ColormapEntries - mask;
+ base = lowbit (mask);
+ for (pixel = 0; pixel < entries; pixel++)
+ {
+ if (pixel & mask)
+ continue;
+ maxp = 0;
+ /* check if all are free */
+ while (ent[pixel + maxp].refcnt == 0)
+ {
+ GetNextBitsOrBreak(maxp, mask, base);
+ }
+ if ((maxp < mask) || (ent[pixel + mask].refcnt != 0))
+ continue;
+ /* this one works */
+ *ppix++ = pixel;
+ found++;
+ if (found < count)
+ continue;
+ /* found enough, allocate them all */
+ while (--count >= 0)
+ {
+ pixel = (pixels)[count];
+ maxp = 0;
+ while (1)
+ {
+ ent[pixel + maxp].refcnt = AllocPrivate;
+ ent[pixel + maxp].fShared = FALSE;
+ GetNextBitsOrBreak(maxp, mask, base);
+ *ppix++ = pixel + maxp;
+ }
+ }
+
+ *pMask = mask;
+ return (TRUE);
+ }
+ }
+ return (FALSE);
+}
+
+/**
+ *
+ * \param ppixFirst First of the client's new pixels
+ */
+static Bool
+AllocShared (ColormapPtr pmap, Pixel *ppix, int c, int r, int g, int b,
+ Pixel rmask, Pixel gmask, Pixel bmask, Pixel *ppixFirst)
+{
+ Pixel *pptr, *cptr;
+ int npix, z, npixClientNew, npixShared;
+ Pixel basemask, base, bits, common;
+ SHAREDCOLOR *pshared, **ppshared, **psharedList;
+
+ npixClientNew = c << (r + g + b);
+ npixShared = (c << r) + (c << g) + (c << b);
+ psharedList = xalloc(npixShared * sizeof(SHAREDCOLOR *));
+ if (!psharedList)
+ return FALSE;
+ ppshared = psharedList;
+ for (z = npixShared; --z >= 0; )
+ {
+ if (!(ppshared[z] = xalloc(sizeof(SHAREDCOLOR))))
+ {
+ for (z++ ; z < npixShared; z++)
+ xfree(ppshared[z]);
+ return FALSE;
+ }
+ }
+ for(pptr = ppix, npix = c; --npix >= 0; pptr++)
+ {
+ basemask = ~(gmask | bmask);
+ common = *pptr & basemask;
+ if (rmask)
+ {
+ bits = 0;
+ base = lowbit (rmask);
+ while(1)
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (g + b);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == (common | bits))
+ {
+ pmap->red[*cptr].fShared = TRUE;
+ pmap->red[*cptr].co.shco.red = pshared;
+ }
+ }
+ GetNextBitsOrBreak(bits, rmask, base);
+ }
+ }
+ else
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (g + b);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == common)
+ {
+ pmap->red[*cptr].fShared = TRUE;
+ pmap->red[*cptr].co.shco.red = pshared;
+ }
+ }
+ }
+ basemask = ~(rmask | bmask);
+ common = *pptr & basemask;
+ if (gmask)
+ {
+ bits = 0;
+ base = lowbit (gmask);
+ while(1)
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (r + b);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == (common | bits))
+ {
+ pmap->red[*cptr].co.shco.green = pshared;
+ }
+ }
+ GetNextBitsOrBreak(bits, gmask, base);
+ }
+ }
+ else
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (g + b);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == common)
+ {
+ pmap->red[*cptr].co.shco.green = pshared;
+ }
+ }
+ }
+ basemask = ~(rmask | gmask);
+ common = *pptr & basemask;
+ if (bmask)
+ {
+ bits = 0;
+ base = lowbit (bmask);
+ while(1)
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (r + g);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == (common | bits))
+ {
+ pmap->red[*cptr].co.shco.blue = pshared;
+ }
+ }
+ GetNextBitsOrBreak(bits, bmask, base);
+ }
+ }
+ else
+ {
+ pshared = *ppshared++;
+ pshared->refcnt = 1 << (g + b);
+ for (cptr = ppixFirst, z = npixClientNew; --z >= 0; cptr++)
+ {
+ if ((*cptr & basemask) == common)
+ {
+ pmap->red[*cptr].co.shco.blue = pshared;
+ }
+ }
+ }
+ }
+ xfree(psharedList);
+ return TRUE;
+}
+
+
+/** FreeColors
+ * Free colors and/or cells (probably slow for large numbers)
+ */
+int
+FreeColors (ColormapPtr pmap, int client, int count, Pixel *pixels, Pixel mask)
+{
+ int rval, result, class;
+ Pixel rmask;
+
+ class = pmap->class;
+ if (pmap->flags & AllAllocated)
+ return(BadAccess);
+ if ((class | DynamicClass) == DirectColor)
+ {
+ rmask = mask & RGBMASK(pmap->pVisual);
+ result = FreeCo(pmap, client, REDMAP, count, pixels,
+ mask & pmap->pVisual->redMask);
+ /* If any of the three calls fails, we must report that, if more
+ * than one fails, it's ok that we report the last one */
+ rval = FreeCo(pmap, client, GREENMAP, count, pixels,
+ mask & pmap->pVisual->greenMask);
+ if(rval != Success)
+ result = rval;
+ rval = FreeCo(pmap, client, BLUEMAP, count, pixels,
+ mask & pmap->pVisual->blueMask);
+ if(rval != Success)
+ result = rval;
+ }
+ else
+ {
+ rmask = mask & ((((Pixel)1) << pmap->pVisual->nplanes) - 1);
+ result = FreeCo(pmap, client, PSEUDOMAP, count, pixels, rmask);
+ }
+ if ((mask != rmask) && count)
+ {
+ clientErrorValue = *pixels | mask;
+ result = BadValue;
+ }
+ /* XXX should worry about removing any RT_CMAPENTRY resource */
+ return (result);
+}
+
+/**
+ * Helper for FreeColors -- frees all combinations of *newpixels and mask bits
+ * which the client has allocated in channel colormap cells of pmap.
+ * doesn't change newpixels if it doesn't need to
+ *
+ * \param pmap which colormap head
+ * \param color which sub-map, eg, RED, BLUE, PSEUDO
+ * \param npixIn number of pixels passed in
+ * \param ppixIn number of base pixels
+ * \param mask mask client gave us
+ */
+static int
+FreeCo (ColormapPtr pmap, int client, int color, int npixIn, Pixel *ppixIn, Pixel mask)
+{
+ Pixel *ppixClient, pixTest;
+ int npixClient, npixNew, npix;
+ Pixel bits, base, cmask, rgbbad;
+ Pixel *pptr, *cptr;
+ int n, zapped;
+ int errVal = Success;
+ int offset, numents;
+
+ if (npixIn == 0)
+ return (errVal);
+ bits = 0;
+ zapped = 0;
+ base = lowbit (mask);
+
+ switch(color)
+ {
+ case REDMAP:
+ cmask = pmap->pVisual->redMask;
+ rgbbad = ~RGBMASK(pmap->pVisual);
+ offset = pmap->pVisual->offsetRed;
+ numents = (cmask >> offset) + 1;
+ ppixClient = pmap->clientPixelsRed[client];
+ npixClient = pmap->numPixelsRed[client];
+ break;
+ case GREENMAP:
+ cmask = pmap->pVisual->greenMask;
+ rgbbad = ~RGBMASK(pmap->pVisual);
+ offset = pmap->pVisual->offsetGreen;
+ numents = (cmask >> offset) + 1;
+ ppixClient = pmap->clientPixelsGreen[client];
+ npixClient = pmap->numPixelsGreen[client];
+ break;
+ case BLUEMAP:
+ cmask = pmap->pVisual->blueMask;
+ rgbbad = ~RGBMASK(pmap->pVisual);
+ offset = pmap->pVisual->offsetBlue;
+ numents = (cmask >> offset) + 1;
+ ppixClient = pmap->clientPixelsBlue[client];
+ npixClient = pmap->numPixelsBlue[client];
+ break;
+ default: /* so compiler can see that everything gets initialized */
+ case PSEUDOMAP:
+ cmask = ~((Pixel)0);
+ rgbbad = 0;
+ offset = 0;
+ numents = pmap->pVisual->ColormapEntries;
+ ppixClient = pmap->clientPixelsRed[client];
+ npixClient = pmap->numPixelsRed[client];
+ break;
+ }
+
+
+ /* zap all pixels which match */
+ while (1)
+ {
+ /* go through pixel list */
+ for (pptr = ppixIn, n = npixIn; --n >= 0; pptr++)
+ {
+ pixTest = ((*pptr | bits) & cmask) >> offset;
+ if ((pixTest >= numents) || (*pptr & rgbbad))
+ {
+ clientErrorValue = *pptr | bits;
+ errVal = BadValue;
+ continue;
+ }
+
+ /* find match in client list */
+ for (cptr = ppixClient, npix = npixClient;
+ --npix >= 0 && *cptr != pixTest;
+ cptr++) ;
+
+ if (npix >= 0)
+ {
+ if (pmap->class & DynamicClass)
+ {
+ FreeCell(pmap, pixTest, color);
+ }
+ *cptr = ~((Pixel)0);
+ zapped++;
+ }
+ else
+ errVal = BadAccess;
+ }
+ /* generate next bits value */
+ GetNextBitsOrBreak(bits, mask, base);
+ }
+
+ /* delete freed pixels from client pixel list */
+ if (zapped)
+ {
+ npixNew = npixClient - zapped;
+ if (npixNew)
+ {
+ /* Since the list can only get smaller, we can do a copy in
+ * place and then realloc to a smaller size */
+ pptr = cptr = ppixClient;
+
+ /* If we have all the new pixels, we don't have to examine the
+ * rest of the old ones */
+ for(npix = 0; npix < npixNew; cptr++)
+ {
+ if (*cptr != ~((Pixel)0))
+ {
+ *pptr++ = *cptr;
+ npix++;
+ }
+ }
+ pptr = (Pixel *)xrealloc(ppixClient, npixNew * sizeof(Pixel));
+ if (pptr)
+ ppixClient = pptr;
+ npixClient = npixNew;
+ }
+ else
+ {
+ npixClient = 0;
+ xfree(ppixClient);
+ ppixClient = (Pixel *)NULL;
+ }
+ switch(color)
+ {
+ case PSEUDOMAP:
+ case REDMAP:
+ pmap->clientPixelsRed[client] = ppixClient;
+ pmap->numPixelsRed[client] = npixClient;
+ break;
+ case GREENMAP:
+ pmap->clientPixelsGreen[client] = ppixClient;
+ pmap->numPixelsGreen[client] = npixClient;
+ break;
+ case BLUEMAP:
+ pmap->clientPixelsBlue[client] = ppixClient;
+ pmap->numPixelsBlue[client] = npixClient;
+ break;
+ }
+ }
+ return (errVal);
+}
+
+
+
+/* Redefine color values */
+int
+StoreColors (ColormapPtr pmap, int count, xColorItem *defs)
+{
+ Pixel pix;
+ xColorItem *pdef;
+ EntryPtr pent, pentT, pentLast;
+ VisualPtr pVisual;
+ SHAREDCOLOR *pred, *pgreen, *pblue;
+ int n, ChgRed, ChgGreen, ChgBlue, idef;
+ int class, errVal = Success;
+ int ok;
+
+
+ class = pmap->class;
+ if(!(class & DynamicClass) && !(pmap->flags & BeingCreated))
+ {
+ return(BadAccess);
+ }
+ pVisual = pmap->pVisual;
+
+ idef = 0;
+ if((class | DynamicClass) == DirectColor)
+ {
+ int numred, numgreen, numblue;
+ Pixel rgbbad;
+
+ numred = NUMRED(pVisual);
+ numgreen = NUMGREEN(pVisual);
+ numblue = NUMBLUE(pVisual);
+ rgbbad = ~RGBMASK(pVisual);
+ for (pdef = defs, n = 0; n < count; pdef++, n++)
+ {
+ ok = TRUE;
+ (*pmap->pScreen->ResolveColor)
+ (&pdef->red, &pdef->green, &pdef->blue, pmap->pVisual);
+
+ if (pdef->pixel & rgbbad)
+ {
+ errVal = BadValue;
+ clientErrorValue = pdef->pixel;
+ continue;
+ }
+ pix = (pdef->pixel & pVisual->redMask) >> pVisual->offsetRed;
+ if (pix >= numred)
+ {
+ errVal = BadValue;
+ ok = FALSE;
+ }
+ else if (pmap->red[pix].refcnt != AllocPrivate)
+ {
+ errVal = BadAccess;
+ ok = FALSE;
+ }
+ else if (pdef->flags & DoRed)
+ {
+ pmap->red[pix].co.local.red = pdef->red;
+ }
+ else
+ {
+ pdef->red = pmap->red[pix].co.local.red;
+ }
+
+ pix = (pdef->pixel & pVisual->greenMask) >> pVisual->offsetGreen;
+ if (pix >= numgreen)
+ {
+ errVal = BadValue;
+ ok = FALSE;
+ }
+ else if (pmap->green[pix].refcnt != AllocPrivate)
+ {
+ errVal = BadAccess;
+ ok = FALSE;
+ }
+ else if (pdef->flags & DoGreen)
+ {
+ pmap->green[pix].co.local.green = pdef->green;
+ }
+ else
+ {
+ pdef->green = pmap->green[pix].co.local.green;
+ }
+
+ pix = (pdef->pixel & pVisual->blueMask) >> pVisual->offsetBlue;
+ if (pix >= numblue)
+ {
+ errVal = BadValue;
+ ok = FALSE;
+ }
+ else if (pmap->blue[pix].refcnt != AllocPrivate)
+ {
+ errVal = BadAccess;
+ ok = FALSE;
+ }
+ else if (pdef->flags & DoBlue)
+ {
+ pmap->blue[pix].co.local.blue = pdef->blue;
+ }
+ else
+ {
+ pdef->blue = pmap->blue[pix].co.local.blue;
+ }
+ /* If this is an o.k. entry, then it gets added to the list
+ * to be sent to the hardware. If not, skip it. Once we've
+ * skipped one, we have to copy all the others.
+ */
+ if(ok)
+ {
+ if(idef != n)
+ defs[idef] = defs[n];
+ idef++;
+ } else
+ clientErrorValue = pdef->pixel;
+ }
+ }
+ else
+ {
+ for (pdef = defs, n = 0; n < count; pdef++, n++)
+ {
+
+ ok = TRUE;
+ if (pdef->pixel >= pVisual->ColormapEntries)
+ {
+ clientErrorValue = pdef->pixel;
+ errVal = BadValue;
+ ok = FALSE;
+ }
+ else if (pmap->red[pdef->pixel].refcnt != AllocPrivate)
+ {
+ errVal = BadAccess;
+ ok = FALSE;
+ }
+
+ /* If this is an o.k. entry, then it gets added to the list
+ * to be sent to the hardware. If not, skip it. Once we've
+ * skipped one, we have to copy all the others.
+ */
+ if(ok)
+ {
+ if(idef != n)
+ defs[idef] = defs[n];
+ idef++;
+ }
+ else
+ continue;
+
+ (*pmap->pScreen->ResolveColor)
+ (&pdef->red, &pdef->green, &pdef->blue, pmap->pVisual);
+
+ pent = &pmap->red[pdef->pixel];
+
+ if(pdef->flags & DoRed)
+ {
+ if(pent->fShared)
+ {
+ pent->co.shco.red->color = pdef->red;
+ if (pent->co.shco.red->refcnt > 1)
+ ok = FALSE;
+ }
+ else
+ pent->co.local.red = pdef->red;
+ }
+ else
+ {
+ if(pent->fShared)
+ pdef->red = pent->co.shco.red->color;
+ else
+ pdef->red = pent->co.local.red;
+ }
+ if(pdef->flags & DoGreen)
+ {
+ if(pent->fShared)
+ {
+ pent->co.shco.green->color = pdef->green;
+ if (pent->co.shco.green->refcnt > 1)
+ ok = FALSE;
+ }
+ else
+ pent->co.local.green = pdef->green;
+ }
+ else
+ {
+ if(pent->fShared)
+ pdef->green = pent->co.shco.green->color;
+ else
+ pdef->green = pent->co.local.green;
+ }
+ if(pdef->flags & DoBlue)
+ {
+ if(pent->fShared)
+ {
+ pent->co.shco.blue->color = pdef->blue;
+ if (pent->co.shco.blue->refcnt > 1)
+ ok = FALSE;
+ }
+ else
+ pent->co.local.blue = pdef->blue;
+ }
+ else
+ {
+ if(pent->fShared)
+ pdef->blue = pent->co.shco.blue->color;
+ else
+ pdef->blue = pent->co.local.blue;
+ }
+
+ if(!ok)
+ {
+ /* have to run through the colormap and change anybody who
+ * shares this value */
+ pred = pent->co.shco.red;
+ pgreen = pent->co.shco.green;
+ pblue = pent->co.shco.blue;
+ ChgRed = pdef->flags & DoRed;
+ ChgGreen = pdef->flags & DoGreen;
+ ChgBlue = pdef->flags & DoBlue;
+ pentLast = pmap->red + pVisual->ColormapEntries;
+
+ for(pentT = pmap->red; pentT < pentLast; pentT++)
+ {
+ if(pentT->fShared && (pentT != pent))
+ {
+ xColorItem defChg;
+
+ /* There are, alas, devices in this world too dumb
+ * to read their own hardware colormaps. Sick, but
+ * true. So we're going to be really nice and load
+ * the xColorItem with the proper value for all the
+ * fields. We will only set the flags for those
+ * fields that actually change. Smart devices can
+ * arrange to change only those fields. Dumb devices
+ * can rest assured that we have provided for them,
+ * and can change all three fields */
+
+ defChg.flags = 0;
+ if(ChgRed && pentT->co.shco.red == pred)
+ {
+ defChg.flags |= DoRed;
+ }
+ if(ChgGreen && pentT->co.shco.green == pgreen)
+ {
+ defChg.flags |= DoGreen;
+ }
+ if(ChgBlue && pentT->co.shco.blue == pblue)
+ {
+ defChg.flags |= DoBlue;
+ }
+ if(defChg.flags != 0)
+ {
+ defChg.pixel = pentT - pmap->red;
+ defChg.red = pentT->co.shco.red->color;
+ defChg.green = pentT->co.shco.green->color;
+ defChg.blue = pentT->co.shco.blue->color;
+ (*pmap->pScreen->StoreColors) (pmap, 1, &defChg);
+ }
+ }
+ }
+
+ }
+ }
+ }
+ /* Note that we use idef, the count of acceptable entries, and not
+ * count, the count of proposed entries */
+ if (idef != 0)
+ ( *pmap->pScreen->StoreColors) (pmap, idef, defs);
+ return (errVal);
+}
+
+int
+IsMapInstalled(Colormap map, WindowPtr pWin)
+{
+ Colormap *pmaps;
+ int imap, nummaps, found;
+
+ pmaps = xalloc(pWin->drawable.pScreen->maxInstalledCmaps*sizeof(Colormap));
+ if(!pmaps)
+ return(FALSE);
+ nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps)
+ (pWin->drawable.pScreen, pmaps);
+ found = FALSE;
+ for(imap = 0; imap < nummaps; imap++)
+ {
+ if(pmaps[imap] == map)
+ {
+ found = TRUE;
+ break;
+ }
+ }
+ xfree(pmaps);
+ return (found);
+}
+
+struct colormap_lookup_data {
+ ScreenPtr pScreen;
+ VisualPtr visuals;
+};
+
+static void _colormap_find_resource(pointer value, XID id,
+ pointer cdata)
+{
+ struct colormap_lookup_data *cmap_data = cdata;
+ VisualPtr visuals = cmap_data->visuals;
+ ScreenPtr pScreen = cmap_data->pScreen;
+ ColormapPtr cmap = value;
+ int j;
+
+ if (pScreen != cmap->pScreen)
+ return;
+
+ j = cmap->pVisual - pScreen->visuals;
+ cmap->pVisual = &visuals[j];
+}
+
+/* something has realloced the visuals, instead of breaking
+ ABI fix it up here - glx and compsite did this wrong */
+Bool
+ResizeVisualArray(ScreenPtr pScreen, int new_visual_count,
+ DepthPtr depth)
+{
+ struct colormap_lookup_data cdata;
+ int numVisuals;
+ VisualPtr visuals;
+ XID *vids, vid;
+ int first_new_vid, first_new_visual, i;
+
+ first_new_vid = depth->numVids;
+ first_new_visual = pScreen->numVisuals;
+
+ vids = xrealloc(depth->vids, (depth->numVids + new_visual_count) * sizeof(XID));
+ if (!vids)
+ return FALSE;
+
+ /* its realloced now no going back if we fail the next one */
+ depth->vids = vids;
+
+ numVisuals = pScreen->numVisuals + new_visual_count;
+ visuals = xrealloc(pScreen->visuals, numVisuals * sizeof(VisualRec));
+ if (!visuals) {
+ return FALSE;
+ }
+
+ cdata.visuals = visuals;
+ cdata.pScreen = pScreen;
+ FindClientResourcesByType(serverClient, RT_COLORMAP, _colormap_find_resource, &cdata);
+
+ pScreen->visuals = visuals;
+
+ for (i = 0; i < new_visual_count; i++) {
+ vid = FakeClientID(0);
+ pScreen->visuals[first_new_visual + i].vid = vid;
+ vids[first_new_vid + i] = vid;
+ }
+
+ depth->numVids += new_visual_count;
+ pScreen->numVisuals += new_visual_count;
+
+ return TRUE;
+}
diff --git a/xorg-server/dix/dispatch.c b/xorg-server/dix/dispatch.c
index 982c808c7..b813136c7 100644
--- a/xorg-server/dix/dispatch.c
+++ b/xorg-server/dix/dispatch.c
@@ -1,4070 +1,4111 @@
-/************************************************************
-
-Copyright 1987, 1989, 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.
-
-
-Copyright 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-********************************************************/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-/* XSERVER_DTRACE additions:
- * Copyright 2005-2006 Sun Microsystems, Inc. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#include <version-config.h>
-#endif
-
-#ifdef PANORAMIX_DEBUG
-#include <stdio.h>
-int ProcInitialConnection();
-#endif
-
-#include "windowstr.h"
-#include <X11/fonts/fontstruct.h>
-#include "dixfontstr.h"
-#include "gcstruct.h"
-#include "selection.h"
-#include "colormapst.h"
-#include "cursorstr.h"
-#include "scrnintstr.h"
-#include "opaque.h"
-#include "input.h"
-#include "servermd.h"
-#include "extnsionst.h"
-#include "dixfont.h"
-#include "dispatch.h"
-#include "swaprep.h"
-#include "swapreq.h"
-#include "privates.h"
-#include "xace.h"
-#include "inputstr.h"
-#include "xkbsrv.h"
-#include "site.h"
-
-#ifdef XSERVER_DTRACE
-#include "registry.h"
-#include <sys/types.h>
-typedef const char *string;
-#include "Xserver-dtrace.h"
-#endif
-
-#define mskcnt ((MAXCLIENTS + 31) / 32)
-#define BITMASK(i) (1U << ((i) & 31))
-#define MASKIDX(i) ((i) >> 5)
-#define MASKWORD(buf, i) buf[MASKIDX(i)]
-#define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i)
-#define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i)
-#define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i))
-
-xConnSetupPrefix connSetupPrefix;
-
-PaddingInfo PixmapWidthPaddingInfo[33];
-
-static ClientPtr grabClient;
-#define GrabNone 0
-#define GrabActive 1
-#define GrabKickout 2
-static int grabState = GrabNone;
-static long grabWaiters[mskcnt];
-CallbackListPtr ServerGrabCallback = NULL;
-HWEventQueuePtr checkForInput[2];
-int connBlockScreenStart;
-
-static void KillAllClients(void);
-
-static int nextFreeClientID; /* always MIN free client ID */
-
-static int nClients; /* number of authorized clients */
-
-CallbackListPtr ClientStateCallback;
-
-/* dispatchException & isItTimeToYield must be declared volatile since they
- * are modified by signal handlers - otherwise optimizer may assume it doesn't
- * need to actually check value in memory when used and may miss changes from
- * signal handlers.
- */
-volatile char dispatchException = 0;
-volatile char isItTimeToYield;
-
-/* Various of the DIX function interfaces were not designed to allow
- * the client->errorValue to be set on BadValue and other errors.
- * Rather than changing interfaces and breaking untold code we introduce
- * a new global that dispatch can use.
- */
-XID clientErrorValue; /* XXX this is a kludge */
-
-#define SAME_SCREENS(a, b) (\
- (a.pScreen == b.pScreen))
-
-void
-SetInputCheck(HWEventQueuePtr c0, HWEventQueuePtr c1)
-{
- checkForInput[0] = c0;
- checkForInput[1] = c1;
-}
-
-void
-UpdateCurrentTime(void)
-{
- TimeStamp systime;
-
- /* To avoid time running backwards, we must call GetTimeInMillis before
- * calling ProcessInputEvents.
- */
- systime.months = currentTime.months;
- systime.milliseconds = GetTimeInMillis();
- if (systime.milliseconds < currentTime.milliseconds)
- systime.months++;
- if (*checkForInput[0] != *checkForInput[1])
- ProcessInputEvents();
- if (CompareTimeStamps(systime, currentTime) == LATER)
- currentTime = systime;
-}
-
-/* Like UpdateCurrentTime, but can't call ProcessInputEvents */
-void
-UpdateCurrentTimeIf(void)
-{
- TimeStamp systime;
-
- systime.months = currentTime.months;
- systime.milliseconds = GetTimeInMillis();
- if (systime.milliseconds < currentTime.milliseconds)
- systime.months++;
- if (*checkForInput[0] == *checkForInput[1])
- currentTime = systime;
-}
-
-
-#undef SMART_DEBUG
-
-#define SMART_SCHEDULE_DEFAULT_INTERVAL 20 /* ms */
-#define SMART_SCHEDULE_MAX_SLICE 200 /* ms */
-
-Bool SmartScheduleDisable = FALSE;
-long SmartScheduleSlice = SMART_SCHEDULE_DEFAULT_INTERVAL;
-long SmartScheduleInterval = SMART_SCHEDULE_DEFAULT_INTERVAL;
-long SmartScheduleMaxSlice = SMART_SCHEDULE_MAX_SLICE;
-long SmartScheduleTime;
-int SmartScheduleLatencyLimited = 0;
-static ClientPtr SmartLastClient;
-static int SmartLastIndex[SMART_MAX_PRIORITY-SMART_MIN_PRIORITY+1];
-
-#ifdef SMART_DEBUG
-long SmartLastPrint;
-#endif
-
-void Dispatch(void);
-void InitProcVectors(void);
-
-static int
-SmartScheduleClient (int *clientReady, int nready)
-{
- ClientPtr pClient;
- int i;
- int client;
- int bestPrio, best = 0;
- int bestRobin, robin;
- long now = SmartScheduleTime;
- long idle;
-
- bestPrio = -0x7fffffff;
- bestRobin = 0;
- idle = 2 * SmartScheduleSlice;
- for (i = 0; i < nready; i++)
- {
- client = clientReady[i];
- pClient = clients[client];
- /* Praise clients which are idle */
- if ((now - pClient->smart_check_tick) >= idle)
- {
- if (pClient->smart_priority < 0)
- pClient->smart_priority++;
- }
- pClient->smart_check_tick = now;
-
- /* check priority to select best client */
- robin = (pClient->index - SmartLastIndex[pClient->smart_priority-SMART_MIN_PRIORITY]) & 0xff;
- if (pClient->smart_priority > bestPrio ||
- (pClient->smart_priority == bestPrio && robin > bestRobin))
- {
- bestPrio = pClient->smart_priority;
- bestRobin = robin;
- best = client;
- }
-#ifdef SMART_DEBUG
- if ((now - SmartLastPrint) >= 5000)
- fprintf (stderr, " %2d: %3d", client, pClient->smart_priority);
-#endif
- }
-#ifdef SMART_DEBUG
- if ((now - SmartLastPrint) >= 5000)
- {
- fprintf (stderr, " use %2d\n", best);
- SmartLastPrint = now;
- }
-#endif
- pClient = clients[best];
- SmartLastIndex[bestPrio-SMART_MIN_PRIORITY] = pClient->index;
- /*
- * Set current client pointer
- */
- if (SmartLastClient != pClient)
- {
- pClient->smart_start_tick = now;
- SmartLastClient = pClient;
- }
- /*
- * Adjust slice
- */
- if (nready == 1 && SmartScheduleLatencyLimited == 0)
- {
- /*
- * If it's been a long time since another client
- * has run, bump the slice up to get maximal
- * performance from a single client
- */
- if ((now - pClient->smart_start_tick) > 1000 &&
- SmartScheduleSlice < SmartScheduleMaxSlice)
- {
- SmartScheduleSlice += SmartScheduleInterval;
- }
- }
- else
- {
- SmartScheduleSlice = SmartScheduleInterval;
- }
- return best;
-}
-
-void
-EnableLimitedSchedulingLatency(void)
-{
- ++SmartScheduleLatencyLimited;
- SmartScheduleSlice = SmartScheduleInterval;
-}
-
-void
-DisableLimitedSchedulingLatency(void)
-{
- --SmartScheduleLatencyLimited;
-
- /* protect against bugs */
- if (SmartScheduleLatencyLimited < 0)
- SmartScheduleLatencyLimited = 0;
-}
-
-#define MAJOROP ((xReq *)client->requestBuffer)->reqType
-
-void
-Dispatch(void)
-{
- int *clientReady; /* array of request ready clients */
- int result;
- ClientPtr client;
- int nready;
- HWEventQueuePtr* icheck = checkForInput;
- long start_tick;
-
- nextFreeClientID = 1;
- nClients = 0;
-
- clientReady = xalloc(sizeof(int) * MaxClients);
- if (!clientReady)
- return;
-
- SmartScheduleSlice = SmartScheduleInterval;
- while (!dispatchException)
- {
- if (*icheck[0] != *icheck[1])
- {
- ProcessInputEvents();
- FlushIfCriticalOutputPending();
- }
-
- nready = WaitForSomething(clientReady);
-
- if (nready && !SmartScheduleDisable)
- {
- clientReady[0] = SmartScheduleClient (clientReady, nready);
- nready = 1;
- }
- /*****************
- * Handle events in round robin fashion, doing input between
- * each round
- *****************/
-
- while (!dispatchException && (--nready >= 0))
- {
- client = clients[clientReady[nready]];
- if (! client)
- {
- /* KillClient can cause this to happen */
- continue;
- }
- /* GrabServer activation can cause this to be true */
- if (grabState == GrabKickout)
- {
- grabState = GrabActive;
- break;
- }
- isItTimeToYield = FALSE;
-
- start_tick = SmartScheduleTime;
- while (!isItTimeToYield)
- {
- if (*icheck[0] != *icheck[1])
- ProcessInputEvents();
-
- FlushIfCriticalOutputPending();
- if (!SmartScheduleDisable &&
- (SmartScheduleTime - start_tick) >= SmartScheduleSlice)
- {
- /* Penalize clients which consume ticks */
- if (client->smart_priority > SMART_MIN_PRIORITY)
- client->smart_priority--;
- break;
- }
- /* now, finally, deal with client requests */
-
- result = ReadRequestFromClient(client);
- if (result <= 0)
- {
- if (result < 0)
- CloseDownClient(client);
- break;
- }
-
- client->sequence++;
-#ifdef XSERVER_DTRACE
- XSERVER_REQUEST_START(LookupMajorName(MAJOROP), MAJOROP,
- ((xReq *)client->requestBuffer)->length,
- client->index, client->requestBuffer);
-#endif
- if (result > (maxBigRequestSize << 2))
- result = BadLength;
- else {
- result = XaceHookDispatch(client, MAJOROP);
- if (result == Success)
- result = (* client->requestVector[MAJOROP])(client);
- XaceHookAuditEnd(client, result);
- }
-#ifdef XSERVER_DTRACE
- XSERVER_REQUEST_DONE(LookupMajorName(MAJOROP), MAJOROP,
- client->sequence, client->index, result);
-#endif
-
- if (result != Success)
- {
- if (client->noClientException != Success)
- CloseDownClient(client);
- else
- SendErrorToClient(client, MAJOROP,
- MinorOpcodeOfRequest(client),
- client->errorValue, result);
- break;
- }
- }
- FlushAllOutput();
- client = clients[clientReady[nready]];
- if (client)
- client->smart_stop_tick = SmartScheduleTime;
- }
- dispatchException &= ~DE_PRIORITYCHANGE;
- }
-#if defined(DDXBEFORERESET)
- ddxBeforeReset ();
-#endif
- KillAllClients();
- xfree(clientReady);
- dispatchException &= ~DE_RESET;
- SmartScheduleLatencyLimited = 0;
-}
-
-#undef MAJOROP
-
-static int VendorRelease = VENDOR_RELEASE;
-static char *VendorString = VENDOR_NAME;
-
-static const int padlength[4] = {0, 3, 2, 1};
-
-void
-SetVendorRelease(int release)
-{
- VendorRelease = release;
-}
-
-void
-SetVendorString(char *string)
-{
- VendorString = string;
-}
-
-Bool
-CreateConnectionBlock(void)
-{
- xConnSetup setup;
- xWindowRoot root;
- xDepth depth;
- xVisualType visual;
- xPixmapFormat format;
- unsigned long vid;
- int i, j, k,
- lenofblock,
- sizesofar = 0;
- char *pBuf;
-
-
- memset(&setup, 0, sizeof(xConnSetup));
- /* Leave off the ridBase and ridMask, these must be sent with
- connection */
-
- setup.release = VendorRelease;
- /*
- * per-server image and bitmap parameters are defined in Xmd.h
- */
- setup.imageByteOrder = screenInfo.imageByteOrder;
-
- setup.bitmapScanlineUnit = screenInfo.bitmapScanlineUnit;
- setup.bitmapScanlinePad = screenInfo.bitmapScanlinePad;
-
- setup.bitmapBitOrder = screenInfo.bitmapBitOrder;
- setup.motionBufferSize = NumMotionEvents();
- setup.numRoots = screenInfo.numScreens;
- setup.nbytesVendor = strlen(VendorString);
- setup.numFormats = screenInfo.numPixmapFormats;
- setup.maxRequestSize = MAX_REQUEST_SIZE;
- QueryMinMaxKeyCodes(&setup.minKeyCode, &setup.maxKeyCode);
-
- lenofblock = sizeof(xConnSetup) +
- pad_to_int32(setup.nbytesVendor) +
- (setup.numFormats * sizeof(xPixmapFormat)) +
- (setup.numRoots * sizeof(xWindowRoot));
- ConnectionInfo = xalloc(lenofblock);
- if (!ConnectionInfo)
- return FALSE;
-
- memmove(ConnectionInfo, (char *)&setup, sizeof(xConnSetup));
- sizesofar = sizeof(xConnSetup);
- pBuf = ConnectionInfo + sizeof(xConnSetup);
-
- memmove(pBuf, VendorString, (int)setup.nbytesVendor);
- sizesofar += setup.nbytesVendor;
- pBuf += setup.nbytesVendor;
- i = padlength[setup.nbytesVendor & 3];
- sizesofar += i;
- while (--i >= 0)
- *pBuf++ = 0;
-
- memset(&format, 0, sizeof(xPixmapFormat));
- for (i=0; i<screenInfo.numPixmapFormats; i++)
- {
- format.depth = screenInfo.formats[i].depth;
- format.bitsPerPixel = screenInfo.formats[i].bitsPerPixel;
- format.scanLinePad = screenInfo.formats[i].scanlinePad;
- memmove(pBuf, (char *)&format, sizeof(xPixmapFormat));
- pBuf += sizeof(xPixmapFormat);
- sizesofar += sizeof(xPixmapFormat);
- }
-
- connBlockScreenStart = sizesofar;
- memset(&depth, 0, sizeof(xDepth));
- memset(&visual, 0, sizeof(xVisualType));
- for (i=0; i<screenInfo.numScreens; i++)
- {
- ScreenPtr pScreen;
- DepthPtr pDepth;
- VisualPtr pVisual;
-
- pScreen = screenInfo.screens[i];
- root.windowId = WindowTable[i]->drawable.id;
- root.defaultColormap = pScreen->defColormap;
- root.whitePixel = pScreen->whitePixel;
- root.blackPixel = pScreen->blackPixel;
- root.currentInputMask = 0; /* filled in when sent */
- root.pixWidth = pScreen->width;
- root.pixHeight = pScreen->height;
- root.mmWidth = pScreen->mmWidth;
- root.mmHeight = pScreen->mmHeight;
- root.minInstalledMaps = pScreen->minInstalledCmaps;
- root.maxInstalledMaps = pScreen->maxInstalledCmaps;
- root.rootVisualID = pScreen->rootVisual;
- root.backingStore = pScreen->backingStoreSupport;
- root.saveUnders = FALSE;
- root.rootDepth = pScreen->rootDepth;
- root.nDepths = pScreen->numDepths;
- memmove(pBuf, (char *)&root, sizeof(xWindowRoot));
- sizesofar += sizeof(xWindowRoot);
- pBuf += sizeof(xWindowRoot);
-
- pDepth = pScreen->allowedDepths;
- for(j = 0; j < pScreen->numDepths; j++, pDepth++)
- {
- lenofblock += sizeof(xDepth) +
- (pDepth->numVids * sizeof(xVisualType));
- pBuf = (char *)xrealloc(ConnectionInfo, lenofblock);
- if (!pBuf)
- {
- xfree(ConnectionInfo);
- return FALSE;
- }
- ConnectionInfo = pBuf;
- pBuf += sizesofar;
- depth.depth = pDepth->depth;
- depth.nVisuals = pDepth->numVids;
- memmove(pBuf, (char *)&depth, sizeof(xDepth));
- pBuf += sizeof(xDepth);
- sizesofar += sizeof(xDepth);
- for(k = 0; k < pDepth->numVids; k++)
- {
- vid = pDepth->vids[k];
- for (pVisual = pScreen->visuals;
- pVisual->vid != vid;
- pVisual++)
- ;
- visual.visualID = vid;
- visual.class = pVisual->class;
- visual.bitsPerRGB = pVisual->bitsPerRGBValue;
- visual.colormapEntries = pVisual->ColormapEntries;
- visual.redMask = pVisual->redMask;
- visual.greenMask = pVisual->greenMask;
- visual.blueMask = pVisual->blueMask;
- memmove(pBuf, (char *)&visual, sizeof(xVisualType));
- pBuf += sizeof(xVisualType);
- sizesofar += sizeof(xVisualType);
- }
- }
- }
- connSetupPrefix.success = xTrue;
- connSetupPrefix.length = lenofblock/4;
- connSetupPrefix.majorVersion = X_PROTOCOL;
- connSetupPrefix.minorVersion = X_PROTOCOL_REVISION;
- return TRUE;
-}
-
-
-int
-ProcBadRequest(ClientPtr client)
-{
- return (BadRequest);
-}
-
-int
-ProcCreateWindow(ClientPtr client)
-{
- WindowPtr pParent, pWin;
- REQUEST(xCreateWindowReq);
- int len, rc;
-
- REQUEST_AT_LEAST_SIZE(xCreateWindowReq);
-
- LEGAL_NEW_RESOURCE(stuff->wid, client);
- rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess);
- if (rc != Success)
- return rc;
- len = client->req_len - bytes_to_int32(sizeof(xCreateWindowReq));
- if (Ones(stuff->mask) != len)
- return BadLength;
- if (!stuff->width || !stuff->height)
- {
- client->errorValue = 0;
- return BadValue;
- }
- pWin = CreateWindow(stuff->wid, pParent, stuff->x,
- stuff->y, stuff->width, stuff->height,
- stuff->borderWidth, stuff->class,
- stuff->mask, (XID *) &stuff[1],
- (int)stuff->depth,
- client, stuff->visual, &rc);
- if (pWin)
- {
- Mask mask = pWin->eventMask;
-
- pWin->eventMask = 0; /* subterfuge in case AddResource fails */
- if (!AddResource(stuff->wid, RT_WINDOW, (pointer)pWin))
- return BadAlloc;
- pWin->eventMask = mask;
- }
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
-}
-
-int
-ProcChangeWindowAttributes(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xChangeWindowAttributesReq);
- int result, len, rc;
- Mask access_mode = 0;
-
- REQUEST_AT_LEAST_SIZE(xChangeWindowAttributesReq);
- access_mode |= (stuff->valueMask & CWEventMask) ? DixReceiveAccess : 0;
- access_mode |= (stuff->valueMask & ~CWEventMask) ? DixSetAttrAccess : 0;
- rc = dixLookupWindow(&pWin, stuff->window, client, access_mode);
- if (rc != Success)
- return rc;
- len = client->req_len - bytes_to_int32(sizeof(xChangeWindowAttributesReq));
- if (len != Ones(stuff->valueMask))
- return BadLength;
- result = ChangeWindowAttributes(pWin,
- stuff->valueMask,
- (XID *) &stuff[1],
- client);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
-}
-
-int
-ProcGetWindowAttributes(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- xGetWindowAttributesReply wa;
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- memset(&wa, 0, sizeof(xGetWindowAttributesReply));
- GetWindowAttributes(pWin, client, &wa);
- WriteReplyToClient(client, sizeof(xGetWindowAttributesReply), &wa);
- return(client->noClientException);
-}
-
-int
-ProcDestroyWindow(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixDestroyAccess);
- if (rc != Success)
- return rc;
- if (pWin->parent) {
- rc = dixLookupWindow(&pWin, pWin->parent->drawable.id, client,
- DixRemoveAccess);
- if (rc != Success)
- return rc;
- FreeResource(stuff->id, RT_NONE);
- }
- return(client->noClientException);
-}
-
-int
-ProcDestroySubwindows(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixRemoveAccess);
- if (rc != Success)
- return rc;
- DestroySubwindows(pWin, client);
- return(client->noClientException);
-}
-
-int
-ProcChangeSaveSet(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xChangeSaveSetReq);
- int result, rc;
-
- REQUEST_SIZE_MATCH(xChangeSaveSetReq);
- rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
- if (rc != Success)
- return rc;
- if (client->clientAsMask == (CLIENT_BITS(pWin->drawable.id)))
- return BadMatch;
- if ((stuff->mode == SetModeInsert) || (stuff->mode == SetModeDelete))
- {
- result = AlterSaveSetForClient(client, pWin, stuff->mode, FALSE, TRUE);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
- }
- else
- {
- client->errorValue = stuff->mode;
- return( BadValue );
- }
-}
-
-int
-ProcReparentWindow(ClientPtr client)
-{
- WindowPtr pWin, pParent;
- REQUEST(xReparentWindowReq);
- int result, rc;
-
- REQUEST_SIZE_MATCH(xReparentWindowReq);
- rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
- if (rc != Success)
- return rc;
- rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess);
- if (rc != Success)
- return rc;
- if (SAME_SCREENS(pWin->drawable, pParent->drawable))
- {
- if ((pWin->backgroundState == ParentRelative) &&
- (pParent->drawable.depth != pWin->drawable.depth))
- return BadMatch;
- if ((pWin->drawable.class != InputOnly) &&
- (pParent->drawable.class == InputOnly))
- return BadMatch;
- result = ReparentWindow(pWin, pParent,
- (short)stuff->x, (short)stuff->y, client);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
- }
- else
- return (BadMatch);
-}
-
-int
-ProcMapWindow(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixShowAccess);
- if (rc != Success)
- return rc;
- MapWindow(pWin, client);
- /* update cache to say it is mapped */
- return(client->noClientException);
-}
-
-int
-ProcMapSubwindows(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
- if (rc != Success)
- return rc;
- MapSubwindows(pWin, client);
- /* update cache to say it is mapped */
- return(client->noClientException);
-}
-
-int
-ProcUnmapWindow(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixHideAccess);
- if (rc != Success)
- return rc;
- UnmapWindow(pWin, FALSE);
- /* update cache to say it is mapped */
- return(client->noClientException);
-}
-
-int
-ProcUnmapSubwindows(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xResourceReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
- if (rc != Success)
- return rc;
- UnmapSubwindows(pWin);
- return(client->noClientException);
-}
-
-int
-ProcConfigureWindow(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xConfigureWindowReq);
- int result;
- int len, rc;
-
- REQUEST_AT_LEAST_SIZE(xConfigureWindowReq);
- rc = dixLookupWindow(&pWin, stuff->window, client,
- DixManageAccess|DixSetAttrAccess);
- if (rc != Success)
- return rc;
- len = client->req_len - bytes_to_int32(sizeof(xConfigureWindowReq));
- if (Ones((Mask)stuff->mask) != len)
- return BadLength;
- result = ConfigureWindow(pWin, (Mask)stuff->mask, (XID *) &stuff[1],
- client);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
-}
-
-int
-ProcCirculateWindow(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xCirculateWindowReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xCirculateWindowReq);
- if ((stuff->direction != RaiseLowest) &&
- (stuff->direction != LowerHighest))
- {
- client->errorValue = stuff->direction;
- return BadValue;
- }
- rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
- if (rc != Success)
- return rc;
- CirculateWindow(pWin, (int)stuff->direction, client);
- return(client->noClientException);
-}
-
-static int
-GetGeometry(ClientPtr client, xGetGeometryReply *rep)
-{
- DrawablePtr pDraw;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupDrawable(&pDraw, stuff->id, client, M_ANY, DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- rep->type = X_Reply;
- rep->length = 0;
- rep->sequenceNumber = client->sequence;
- rep->root = WindowTable[pDraw->pScreen->myNum]->drawable.id;
- rep->depth = pDraw->depth;
- rep->width = pDraw->width;
- rep->height = pDraw->height;
-
- /* XXX - Because the pixmap-implementation of the multibuffer extension
- * may have the buffer-id's drawable resource value be a pointer
- * to the buffer's window instead of the buffer itself
- * (this happens if the buffer is the displayed buffer),
- * we also have to check that the id matches before we can
- * truly say that it is a DRAWABLE_WINDOW.
- */
-
- if ((pDraw->type == UNDRAWABLE_WINDOW) ||
- ((pDraw->type == DRAWABLE_WINDOW) && (stuff->id == pDraw->id)))
- {
- WindowPtr pWin = (WindowPtr)pDraw;
- rep->x = pWin->origin.x - wBorderWidth (pWin);
- rep->y = pWin->origin.y - wBorderWidth (pWin);
- rep->borderWidth = pWin->borderWidth;
- }
- else /* DRAWABLE_PIXMAP or DRAWABLE_BUFFER */
- {
- rep->x = rep->y = rep->borderWidth = 0;
- }
-
- return Success;
-}
-
-
-int
-ProcGetGeometry(ClientPtr client)
-{
- xGetGeometryReply rep;
- int status;
-
- memset(&rep, 0, sizeof(xGetGeometryReply));
- if ((status = GetGeometry(client, &rep)) != Success)
- return status;
-
- WriteReplyToClient(client, sizeof(xGetGeometryReply), &rep);
- return(client->noClientException);
-}
-
-
-int
-ProcQueryTree(ClientPtr client)
-{
- xQueryTreeReply reply;
- int rc, numChildren = 0;
- WindowPtr pChild, pWin, pHead;
- Window *childIDs = (Window *)NULL;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
- if (rc != Success)
- return rc;
- memset(&reply, 0, sizeof(xQueryTreeReply));
- reply.type = X_Reply;
- reply.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id;
- reply.sequenceNumber = client->sequence;
- if (pWin->parent)
- reply.parent = pWin->parent->drawable.id;
- else
- reply.parent = (Window)None;
- pHead = RealChildHead(pWin);
- for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)
- numChildren++;
- if (numChildren)
- {
- int curChild = 0;
-
- childIDs = xalloc(numChildren * sizeof(Window));
- if (!childIDs)
- return BadAlloc;
- for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)
- childIDs[curChild++] = pChild->drawable.id;
- }
-
- reply.nChildren = numChildren;
- reply.length = bytes_to_int32(numChildren * sizeof(Window));
-
- WriteReplyToClient(client, sizeof(xQueryTreeReply), &reply);
- if (numChildren)
- {
- client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
- WriteSwappedDataToClient(client, numChildren * sizeof(Window), childIDs);
- xfree(childIDs);
- }
-
- return(client->noClientException);
-}
-
-int
-ProcInternAtom(ClientPtr client)
-{
- Atom atom;
- char *tchar;
- REQUEST(xInternAtomReq);
-
- REQUEST_FIXED_SIZE(xInternAtomReq, stuff->nbytes);
- if ((stuff->onlyIfExists != xTrue) && (stuff->onlyIfExists != xFalse))
- {
- client->errorValue = stuff->onlyIfExists;
- return(BadValue);
- }
- tchar = (char *) &stuff[1];
- atom = MakeAtom(tchar, stuff->nbytes, !stuff->onlyIfExists);
- if (atom != BAD_RESOURCE)
- {
- xInternAtomReply reply;
- memset(&reply, 0, sizeof(xInternAtomReply));
- reply.type = X_Reply;
- reply.length = 0;
- reply.sequenceNumber = client->sequence;
- reply.atom = atom;
- WriteReplyToClient(client, sizeof(xInternAtomReply), &reply);
- return(client->noClientException);
- }
- else
- return (BadAlloc);
-}
-
-int
-ProcGetAtomName(ClientPtr client)
-{
- const char *str;
- xGetAtomNameReply reply;
- int len;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- if ( (str = NameForAtom(stuff->id)) )
- {
- len = strlen(str);
- memset(&reply, 0, sizeof(xGetAtomNameReply));
- reply.type = X_Reply;
- reply.length = bytes_to_int32(len);
- reply.sequenceNumber = client->sequence;
- reply.nameLength = len;
- WriteReplyToClient(client, sizeof(xGetAtomNameReply), &reply);
- (void)WriteToClient(client, len, str);
- return(client->noClientException);
- }
- else
- {
- client->errorValue = stuff->id;
- return (BadAtom);
- }
-}
-
-int
-ProcGrabServer(ClientPtr client)
-{
- int rc;
- REQUEST_SIZE_MATCH(xReq);
- if (grabState != GrabNone && client != grabClient)
- {
- ResetCurrentRequest(client);
- client->sequence--;
- BITSET(grabWaiters, client->index);
- IgnoreClient(client);
- return(client->noClientException);
- }
- rc = OnlyListenToOneClient(client);
- if (rc != Success)
- return rc;
- grabState = GrabKickout;
- grabClient = client;
-
- if (ServerGrabCallback)
- {
- ServerGrabInfoRec grabinfo;
- grabinfo.client = client;
- grabinfo.grabstate = SERVER_GRABBED;
- CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo);
- }
-
- return(client->noClientException);
-}
-
-static void
-UngrabServer(ClientPtr client)
-{
- int i;
-
- grabState = GrabNone;
- ListenToAllClients();
- for (i = mskcnt; --i >= 0 && !grabWaiters[i]; )
- ;
- if (i >= 0)
- {
- i <<= 5;
- while (!GETBIT(grabWaiters, i))
- i++;
- BITCLEAR(grabWaiters, i);
- AttendClient(clients[i]);
- }
-
- if (ServerGrabCallback)
- {
- ServerGrabInfoRec grabinfo;
- grabinfo.client = client;
- grabinfo.grabstate = SERVER_UNGRABBED;
- CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo);
- }
-}
-
-int
-ProcUngrabServer(ClientPtr client)
-{
- REQUEST_SIZE_MATCH(xReq);
- UngrabServer(client);
- return(client->noClientException);
-}
-
-int
-ProcTranslateCoords(ClientPtr client)
-{
- REQUEST(xTranslateCoordsReq);
-
- WindowPtr pWin, pDst;
- xTranslateCoordsReply rep;
- int rc;
-
- REQUEST_SIZE_MATCH(xTranslateCoordsReq);
- rc = dixLookupWindow(&pWin, stuff->srcWid, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- rc = dixLookupWindow(&pDst, stuff->dstWid, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- memset(&rep, 0, sizeof(xTranslateCoordsReply));
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- if (!SAME_SCREENS(pWin->drawable, pDst->drawable))
- {
- rep.sameScreen = xFalse;
- rep.child = None;
- rep.dstX = rep.dstY = 0;
- }
- else
- {
- INT16 x, y;
- rep.sameScreen = xTrue;
- rep.child = None;
- /* computing absolute coordinates -- adjust to destination later */
- x = pWin->drawable.x + stuff->srcX;
- y = pWin->drawable.y + stuff->srcY;
- pWin = pDst->firstChild;
- while (pWin)
- {
- BoxRec box;
- if ((pWin->mapped) &&
- (x >= pWin->drawable.x - wBorderWidth (pWin)) &&
- (x < pWin->drawable.x + (int)pWin->drawable.width +
- wBorderWidth (pWin)) &&
- (y >= pWin->drawable.y - wBorderWidth (pWin)) &&
- (y < pWin->drawable.y + (int)pWin->drawable.height +
- wBorderWidth (pWin))
- /* When a window is shaped, a further check
- * is made to see if the point is inside
- * borderSize
- */
- && (!wBoundingShape(pWin) ||
- POINT_IN_REGION(pWin->drawable.pScreen,
- &pWin->borderSize, x, y, &box))
-
- && (!wInputShape(pWin) ||
- POINT_IN_REGION(pWin->drawable.pScreen,
- wInputShape(pWin),
- x - pWin->drawable.x,
- y - pWin->drawable.y, &box))
- )
- {
- rep.child = pWin->drawable.id;
- pWin = (WindowPtr) NULL;
- }
- else
- pWin = pWin->nextSib;
- }
- /* adjust to destination coordinates */
- rep.dstX = x - pDst->drawable.x;
- rep.dstY = y - pDst->drawable.y;
- }
- WriteReplyToClient(client, sizeof(xTranslateCoordsReply), &rep);
- return(client->noClientException);
-}
-
-int
-ProcOpenFont(ClientPtr client)
-{
- int err;
- REQUEST(xOpenFontReq);
-
- REQUEST_FIXED_SIZE(xOpenFontReq, stuff->nbytes);
- client->errorValue = stuff->fid;
- LEGAL_NEW_RESOURCE(stuff->fid, client);
- err = OpenFont(client, stuff->fid, (Mask) 0,
- stuff->nbytes, (char *)&stuff[1]);
- if (err == Success)
- {
- return(client->noClientException);
- }
- else
- return err;
-}
-
-int
-ProcCloseFont(ClientPtr client)
-{
- FontPtr pFont;
- int rc;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT,
- client, DixDestroyAccess);
- if (rc == Success)
- {
- FreeResource(stuff->id, RT_NONE);
- return(client->noClientException);
- }
- else
- {
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadFont : rc;
- }
-}
-
-int
-ProcQueryFont(ClientPtr client)
-{
- xQueryFontReply *reply;
- FontPtr pFont;
- GC *pGC;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- client->errorValue = stuff->id; /* EITHER font or gc */
- rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT, client,
- DixGetAttrAccess);
- if (rc == BadValue) {
- rc = dixLookupResourceByType((pointer *)&pGC, stuff->id, RT_GC, client,
- DixGetAttrAccess);
- if (rc == Success)
- pFont = pGC->font;
- }
- if (rc != Success)
- return (rc == BadValue) ? BadFont: rc;
-
- {
- xCharInfo *pmax = FONTINKMAX(pFont);
- xCharInfo *pmin = FONTINKMIN(pFont);
- int nprotoxcistructs;
- int rlength;
-
- nprotoxcistructs = (
- pmax->rightSideBearing == pmin->rightSideBearing &&
- pmax->leftSideBearing == pmin->leftSideBearing &&
- pmax->descent == pmin->descent &&
- pmax->ascent == pmin->ascent &&
- pmax->characterWidth == pmin->characterWidth) ?
- 0 : N2dChars(pFont);
-
- rlength = sizeof(xQueryFontReply) +
- FONTINFONPROPS(FONTCHARSET(pFont)) * sizeof(xFontProp) +
- nprotoxcistructs * sizeof(xCharInfo);
- reply = xcalloc(1, rlength);
- if(!reply)
- {
- return(BadAlloc);
- }
-
- reply->type = X_Reply;
- reply->length = bytes_to_int32(rlength - sizeof(xGenericReply));
- reply->sequenceNumber = client->sequence;
- QueryFont( pFont, reply, nprotoxcistructs);
-
- WriteReplyToClient(client, rlength, reply);
- xfree(reply);
- return(client->noClientException);
- }
-}
-
-int
-ProcQueryTextExtents(ClientPtr client)
-{
- xQueryTextExtentsReply reply;
- FontPtr pFont;
- GC *pGC;
- ExtentInfoRec info;
- unsigned long length;
- int rc;
- REQUEST(xQueryTextExtentsReq);
- REQUEST_AT_LEAST_SIZE(xQueryTextExtentsReq);
-
- client->errorValue = stuff->fid; /* EITHER font or gc */
- rc = dixLookupResourceByType((pointer *)&pFont, stuff->fid, RT_FONT, client,
- DixGetAttrAccess);
- if (rc == BadValue) {
- rc = dixLookupResourceByType((pointer *)&pGC, stuff->fid, RT_GC, client,
- DixGetAttrAccess);
- if (rc == Success)
- pFont = pGC->font;
- }
- if (rc != Success)
- return (rc == BadValue) ? BadFont: rc;
-
- length = client->req_len - bytes_to_int32(sizeof(xQueryTextExtentsReq));
- length = length << 1;
- if (stuff->oddLength)
- {
- if (length == 0)
- return(BadLength);
- length--;
- }
- if (!QueryTextExtents(pFont, length, (unsigned char *)&stuff[1], &info))
- return(BadAlloc);
- reply.type = X_Reply;
- reply.length = 0;
- reply.sequenceNumber = client->sequence;
- reply.drawDirection = info.drawDirection;
- reply.fontAscent = info.fontAscent;
- reply.fontDescent = info.fontDescent;
- reply.overallAscent = info.overallAscent;
- reply.overallDescent = info.overallDescent;
- reply.overallWidth = info.overallWidth;
- reply.overallLeft = info.overallLeft;
- reply.overallRight = info.overallRight;
- WriteReplyToClient(client, sizeof(xQueryTextExtentsReply), &reply);
- return(client->noClientException);
-}
-
-int
-ProcListFonts(ClientPtr client)
-{
- REQUEST(xListFontsReq);
-
- REQUEST_FIXED_SIZE(xListFontsReq, stuff->nbytes);
-
- return ListFonts(client, (unsigned char *) &stuff[1], stuff->nbytes,
- stuff->maxNames);
-}
-
-int
-ProcListFontsWithInfo(ClientPtr client)
-{
- REQUEST(xListFontsWithInfoReq);
-
- REQUEST_FIXED_SIZE(xListFontsWithInfoReq, stuff->nbytes);
-
- return StartListFontsWithInfo(client, stuff->nbytes,
- (unsigned char *) &stuff[1], stuff->maxNames);
-}
-
-/**
- *
- * \param value must conform to DeleteType
- */
-int
-dixDestroyPixmap(pointer value, XID pid)
-{
- PixmapPtr pPixmap = (PixmapPtr)value;
- return (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap);
-}
-
-int
-ProcCreatePixmap(ClientPtr client)
-{
- PixmapPtr pMap;
- DrawablePtr pDraw;
- REQUEST(xCreatePixmapReq);
- DepthPtr pDepth;
- int i, rc;
-
- REQUEST_SIZE_MATCH(xCreatePixmapReq);
- client->errorValue = stuff->pid;
- LEGAL_NEW_RESOURCE(stuff->pid, client);
-
- rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
- DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- if (!stuff->width || !stuff->height)
- {
- client->errorValue = 0;
- return BadValue;
- }
- if (stuff->width > 32767 || stuff->height > 32767)
- {
- /* It is allowed to try and allocate a pixmap which is larger than
- * 32767 in either dimension. However, all of the framebuffer code
- * is buggy and does not reliably draw to such big pixmaps, basically
- * because the Region data structure operates with signed shorts
- * for the rectangles in it.
- *
- * Furthermore, several places in the X server computes the
- * size in bytes of the pixmap and tries to store it in an
- * integer. This integer can overflow and cause the allocated size
- * to be much smaller.
- *
- * So, such big pixmaps are rejected here with a BadAlloc
- */
- return BadAlloc;
- }
- if (stuff->depth != 1)
- {
- pDepth = pDraw->pScreen->allowedDepths;
- for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++)
- if (pDepth->depth == stuff->depth)
- goto CreatePmap;
- client->errorValue = stuff->depth;
- return BadValue;
- }
-CreatePmap:
- pMap = (PixmapPtr)(*pDraw->pScreen->CreatePixmap)
- (pDraw->pScreen, stuff->width,
- stuff->height, stuff->depth, 0);
- if (pMap)
- {
- pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
- pMap->drawable.id = stuff->pid;
- /* security creation/labeling check */
- rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP,
- pMap, RT_NONE, NULL, DixCreateAccess);
- if (rc != Success) {
- (*pDraw->pScreen->DestroyPixmap)(pMap);
- return rc;
- }
- if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap))
- return(client->noClientException);
- (*pDraw->pScreen->DestroyPixmap)(pMap);
- }
- return (BadAlloc);
-}
-
-int
-ProcFreePixmap(ClientPtr client)
-{
- PixmapPtr pMap;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupResourceByType((pointer *)&pMap, stuff->id, RT_PIXMAP, client,
- DixDestroyAccess);
- if (rc == Success)
- {
- FreeResource(stuff->id, RT_NONE);
- return(client->noClientException);
- }
- else
- {
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadPixmap : rc;
- }
-}
-
-int
-ProcCreateGC(ClientPtr client)
-{
- int error, rc;
- GC *pGC;
- DrawablePtr pDraw;
- unsigned len;
- REQUEST(xCreateGCReq);
-
- REQUEST_AT_LEAST_SIZE(xCreateGCReq);
- client->errorValue = stuff->gc;
- LEGAL_NEW_RESOURCE(stuff->gc, client);
- rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
- DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- len = client->req_len - bytes_to_int32(sizeof(xCreateGCReq));
- if (len != Ones(stuff->mask))
- return BadLength;
- pGC = (GC *)CreateGC(pDraw, stuff->mask, (XID *) &stuff[1], &error,
- stuff->gc, client);
- if (error != Success)
- return error;
- if (!AddResource(stuff->gc, RT_GC, (pointer)pGC))
- return (BadAlloc);
- return(client->noClientException);
-}
-
-int
-ProcChangeGC(ClientPtr client)
-{
- GC *pGC;
- int result;
- unsigned len;
- REQUEST(xChangeGCReq);
- REQUEST_AT_LEAST_SIZE(xChangeGCReq);
-
- result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess);
- if (result != Success)
- return result;
-
- len = client->req_len - bytes_to_int32(sizeof(xChangeGCReq));
- if (len != Ones(stuff->mask))
- return BadLength;
-
- result = dixChangeGC(client, pGC, stuff->mask, (CARD32 *) &stuff[1], 0);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return(result);
- }
-}
-
-int
-ProcCopyGC(ClientPtr client)
-{
- GC *dstGC;
- GC *pGC;
- int result;
- REQUEST(xCopyGCReq);
- REQUEST_SIZE_MATCH(xCopyGCReq);
-
- result = dixLookupGC(&pGC, stuff->srcGC, client, DixGetAttrAccess);
- if (result != Success)
- return result;
- result = dixLookupGC(&dstGC, stuff->dstGC, client, DixSetAttrAccess);
- if (result != Success)
- return result;
- if ((dstGC->pScreen != pGC->pScreen) || (dstGC->depth != pGC->depth))
- return (BadMatch);
- result = CopyGC(pGC, dstGC, stuff->mask);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return(result);
- }
-}
-
-int
-ProcSetDashes(ClientPtr client)
-{
- GC *pGC;
- int result;
- REQUEST(xSetDashesReq);
-
- REQUEST_FIXED_SIZE(xSetDashesReq, stuff->nDashes);
- if (stuff->nDashes == 0)
- {
- client->errorValue = 0;
- return BadValue;
- }
-
- result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess);
- if (result != Success)
- return result;
-
- result = SetDashes(pGC, stuff->dashOffset, stuff->nDashes,
- (unsigned char *)&stuff[1]);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return(result);
- }
-}
-
-int
-ProcSetClipRectangles(ClientPtr client)
-{
- int nr, result;
- GC *pGC;
- REQUEST(xSetClipRectanglesReq);
-
- REQUEST_AT_LEAST_SIZE(xSetClipRectanglesReq);
- if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) &&
- (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded))
- {
- client->errorValue = stuff->ordering;
- return BadValue;
- }
- result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess);
- if (result != Success)
- return result;
-
- nr = (client->req_len << 2) - sizeof(xSetClipRectanglesReq);
- if (nr & 4)
- return(BadLength);
- nr >>= 3;
- result = SetClipRects(pGC, stuff->xOrigin, stuff->yOrigin,
- nr, (xRectangle *)&stuff[1], (int)stuff->ordering);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
-}
-
-int
-ProcFreeGC(ClientPtr client)
-{
- GC *pGC;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupGC(&pGC, stuff->id, client, DixDestroyAccess);
- if (rc != Success)
- return rc;
-
- FreeResource(stuff->id, RT_NONE);
- return(client->noClientException);
-}
-
-int
-ProcClearToBackground(ClientPtr client)
-{
- REQUEST(xClearAreaReq);
- WindowPtr pWin;
- int rc;
-
- REQUEST_SIZE_MATCH(xClearAreaReq);
- rc = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess);
- if (rc != Success)
- return rc;
- if (pWin->drawable.class == InputOnly)
- {
- client->errorValue = stuff->window;
- return (BadMatch);
- }
- if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse))
- {
- client->errorValue = stuff->exposures;
- return(BadValue);
- }
- (*pWin->drawable.pScreen->ClearToBackground)(pWin, stuff->x, stuff->y,
- stuff->width, stuff->height,
- (Bool)stuff->exposures);
- return(client->noClientException);
-}
-
-int
-ProcCopyArea(ClientPtr client)
-{
- DrawablePtr pDst;
- DrawablePtr pSrc;
- GC *pGC;
- REQUEST(xCopyAreaReq);
- RegionPtr pRgn;
- int rc;
-
- REQUEST_SIZE_MATCH(xCopyAreaReq);
-
- VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pDst, DixWriteAccess);
- if (stuff->dstDrawable != stuff->srcDrawable)
- {
- rc = dixLookupDrawable(&pSrc, stuff->srcDrawable, client, 0,
- DixReadAccess);
- if (rc != Success)
- return rc;
- if ((pDst->pScreen != pSrc->pScreen) || (pDst->depth != pSrc->depth))
- {
- client->errorValue = stuff->dstDrawable;
- return (BadMatch);
- }
- }
- else
- pSrc = pDst;
-
- pRgn = (*pGC->ops->CopyArea)(pSrc, pDst, pGC, stuff->srcX, stuff->srcY,
- stuff->width, stuff->height,
- stuff->dstX, stuff->dstY);
- if (pGC->graphicsExposures)
- {
- (*pDst->pScreen->SendGraphicsExpose)
- (client, pRgn, stuff->dstDrawable, X_CopyArea, 0);
- if (pRgn)
- REGION_DESTROY(pDst->pScreen, pRgn);
- }
-
- return(client->noClientException);
-}
-
-int
-ProcCopyPlane(ClientPtr client)
-{
- DrawablePtr psrcDraw, pdstDraw;
- GC *pGC;
- REQUEST(xCopyPlaneReq);
- RegionPtr pRgn;
- int rc;
-
- REQUEST_SIZE_MATCH(xCopyPlaneReq);
-
- VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pdstDraw, DixWriteAccess);
- if (stuff->dstDrawable != stuff->srcDrawable)
- {
- rc = dixLookupDrawable(&psrcDraw, stuff->srcDrawable, client, 0,
- DixReadAccess);
- if (rc != Success)
- return rc;
-
- if (pdstDraw->pScreen != psrcDraw->pScreen)
- {
- client->errorValue = stuff->dstDrawable;
- return (BadMatch);
- }
- }
- else
- psrcDraw = pdstDraw;
-
- /* Check to see if stuff->bitPlane has exactly ONE good bit set */
- if(stuff->bitPlane == 0 || (stuff->bitPlane & (stuff->bitPlane - 1)) ||
- (stuff->bitPlane > (1L << (psrcDraw->depth - 1))))
- {
- client->errorValue = stuff->bitPlane;
- return(BadValue);
- }
-
- pRgn = (*pGC->ops->CopyPlane)(psrcDraw, pdstDraw, pGC, stuff->srcX, stuff->srcY,
- stuff->width, stuff->height,
- stuff->dstX, stuff->dstY, stuff->bitPlane);
- if (pGC->graphicsExposures)
- {
- (*pdstDraw->pScreen->SendGraphicsExpose)
- (client, pRgn, stuff->dstDrawable, X_CopyPlane, 0);
- if (pRgn)
- REGION_DESTROY(pdstDraw->pScreen, pRgn);
- }
- return(client->noClientException);
-}
-
-int
-ProcPolyPoint(ClientPtr client)
-{
- int npoint;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyPointReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyPointReq);
- if ((stuff->coordMode != CoordModeOrigin) &&
- (stuff->coordMode != CoordModePrevious))
- {
- client->errorValue = stuff->coordMode;
- return BadValue;
- }
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyPointReq));
- if (npoint)
- (*pGC->ops->PolyPoint)(pDraw, pGC, stuff->coordMode, npoint,
- (xPoint *) &stuff[1]);
- return (client->noClientException);
-}
-
-int
-ProcPolyLine(ClientPtr client)
-{
- int npoint;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyLineReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyLineReq);
- if ((stuff->coordMode != CoordModeOrigin) &&
- (stuff->coordMode != CoordModePrevious))
- {
- client->errorValue = stuff->coordMode;
- return BadValue;
- }
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyLineReq));
- if (npoint > 1)
- (*pGC->ops->Polylines)(pDraw, pGC, stuff->coordMode, npoint,
- (DDXPointPtr) &stuff[1]);
- return(client->noClientException);
-}
-
-int
-ProcPolySegment(ClientPtr client)
-{
- int nsegs;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolySegmentReq);
-
- REQUEST_AT_LEAST_SIZE(xPolySegmentReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- nsegs = (client->req_len << 2) - sizeof(xPolySegmentReq);
- if (nsegs & 4)
- return(BadLength);
- nsegs >>= 3;
- if (nsegs)
- (*pGC->ops->PolySegment)(pDraw, pGC, nsegs, (xSegment *) &stuff[1]);
- return (client->noClientException);
-}
-
-int
-ProcPolyRectangle (ClientPtr client)
-{
- int nrects;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyRectangleReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyRectangleReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- nrects = (client->req_len << 2) - sizeof(xPolyRectangleReq);
- if (nrects & 4)
- return(BadLength);
- nrects >>= 3;
- if (nrects)
- (*pGC->ops->PolyRectangle)(pDraw, pGC,
- nrects, (xRectangle *) &stuff[1]);
- return(client->noClientException);
-}
-
-int
-ProcPolyArc(ClientPtr client)
-{
- int narcs;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyArcReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyArcReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- narcs = (client->req_len << 2) - sizeof(xPolyArcReq);
- if (narcs % sizeof(xArc))
- return(BadLength);
- narcs /= sizeof(xArc);
- if (narcs)
- (*pGC->ops->PolyArc)(pDraw, pGC, narcs, (xArc *) &stuff[1]);
- return (client->noClientException);
-}
-
-int
-ProcFillPoly(ClientPtr client)
-{
- int things;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xFillPolyReq);
-
- REQUEST_AT_LEAST_SIZE(xFillPolyReq);
- if ((stuff->shape != Complex) && (stuff->shape != Nonconvex) &&
- (stuff->shape != Convex))
- {
- client->errorValue = stuff->shape;
- return BadValue;
- }
- if ((stuff->coordMode != CoordModeOrigin) &&
- (stuff->coordMode != CoordModePrevious))
- {
- client->errorValue = stuff->coordMode;
- return BadValue;
- }
-
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- things = bytes_to_int32((client->req_len << 2) - sizeof(xFillPolyReq));
- if (things)
- (*pGC->ops->FillPolygon) (pDraw, pGC, stuff->shape,
- stuff->coordMode, things,
- (DDXPointPtr) &stuff[1]);
- return(client->noClientException);
-}
-
-int
-ProcPolyFillRectangle(ClientPtr client)
-{
- int things;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyFillRectangleReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyFillRectangleReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- things = (client->req_len << 2) - sizeof(xPolyFillRectangleReq);
- if (things & 4)
- return(BadLength);
- things >>= 3;
-
- if (things)
- (*pGC->ops->PolyFillRect) (pDraw, pGC, things,
- (xRectangle *) &stuff[1]);
- return (client->noClientException);
-}
-
-int
-ProcPolyFillArc(ClientPtr client)
-{
- int narcs;
- GC *pGC;
- DrawablePtr pDraw;
- REQUEST(xPolyFillArcReq);
-
- REQUEST_AT_LEAST_SIZE(xPolyFillArcReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- narcs = (client->req_len << 2) - sizeof(xPolyFillArcReq);
- if (narcs % sizeof(xArc))
- return(BadLength);
- narcs /= sizeof(xArc);
- if (narcs)
- (*pGC->ops->PolyFillArc) (pDraw, pGC, narcs, (xArc *) &stuff[1]);
- return (client->noClientException);
-}
-
-#ifdef MATCH_CLIENT_ENDIAN
-
-int
-ServerOrder (void)
-{
- int whichbyte = 1;
-
- if (*((char *) &whichbyte))
- return LSBFirst;
- return MSBFirst;
-}
-
-#define ClientOrder(client) ((client)->swapped ? !ServerOrder() : ServerOrder())
-
-void
-ReformatImage (char *base, int nbytes, int bpp, int order)
-{
- switch (bpp) {
- case 1: /* yuck */
- if (BITMAP_BIT_ORDER != order)
- BitOrderInvert ((unsigned char *) base, nbytes);
-#if IMAGE_BYTE_ORDER != BITMAP_BIT_ORDER && BITMAP_SCANLINE_UNIT != 8
- ReformatImage (base, nbytes, BITMAP_SCANLINE_UNIT, order);
-#endif
- break;
- case 4:
- break; /* yuck */
- case 8:
- break;
- case 16:
- if (IMAGE_BYTE_ORDER != order)
- TwoByteSwap ((unsigned char *) base, nbytes);
- break;
- case 32:
- if (IMAGE_BYTE_ORDER != order)
- FourByteSwap ((unsigned char *) base, nbytes);
- break;
- }
-}
-#else
-#define ReformatImage(b,n,bpp,o)
-#endif
-
-/* 64-bit server notes: the protocol restricts padding of images to
- * 8-, 16-, or 32-bits. We would like to have 64-bits for the server
- * to use internally. Removes need for internal alignment checking.
- * All of the PutImage functions could be changed individually, but
- * as currently written, they call other routines which require things
- * to be 64-bit padded on scanlines, so we changed things here.
- * If an image would be padded differently for 64- versus 32-, then
- * copy each scanline to a 64-bit padded scanline.
- * Also, we need to make sure that the image is aligned on a 64-bit
- * boundary, even if the scanlines are padded to our satisfaction.
- */
-int
-ProcPutImage(ClientPtr client)
-{
- GC *pGC;
- DrawablePtr pDraw;
- long length; /* length of scanline server padded */
- long lengthProto; /* length of scanline protocol padded */
- char *tmpImage;
- REQUEST(xPutImageReq);
-
- REQUEST_AT_LEAST_SIZE(xPutImageReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
- if (stuff->format == XYBitmap)
- {
- if ((stuff->depth != 1) ||
- (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad))
- return BadMatch;
- length = BitmapBytePad(stuff->width + stuff->leftPad);
- }
- else if (stuff->format == XYPixmap)
- {
- if ((pDraw->depth != stuff->depth) ||
- (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad))
- return BadMatch;
- length = BitmapBytePad(stuff->width + stuff->leftPad);
- length *= stuff->depth;
- }
- else if (stuff->format == ZPixmap)
- {
- if ((pDraw->depth != stuff->depth) || (stuff->leftPad != 0))
- return BadMatch;
- length = PixmapBytePad(stuff->width, stuff->depth);
- }
- else
- {
- client->errorValue = stuff->format;
- return BadValue;
- }
-
- tmpImage = (char *)&stuff[1];
- lengthProto = length;
-
- if ((bytes_to_int32(lengthProto * stuff->height) +
- bytes_to_int32(sizeof(xPutImageReq))) != client->req_len)
- return BadLength;
-
- ReformatImage (tmpImage, lengthProto * stuff->height,
- stuff->format == ZPixmap ? BitsPerPixel (stuff->depth) : 1,
- ClientOrder(client));
-
- (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth, stuff->dstX, stuff->dstY,
- stuff->width, stuff->height,
- stuff->leftPad, stuff->format, tmpImage);
-
- return (client->noClientException);
-}
-
-static int
-DoGetImage(ClientPtr client, int format, Drawable drawable,
- int x, int y, int width, int height,
- Mask planemask, xGetImageReply **im_return)
-{
- DrawablePtr pDraw, pBoundingDraw;
- int nlines, linesPerBuf, rc;
- int linesDone;
- /* coordinates relative to the bounding drawable */
- int relx, rely;
- long widthBytesLine, length;
- Mask plane = 0;
- char *pBuf;
- xGetImageReply xgi;
- RegionPtr pVisibleRegion = NULL;
-
- if ((format != XYPixmap) && (format != ZPixmap))
- {
- client->errorValue = format;
- return(BadValue);
- }
- rc = dixLookupDrawable(&pDraw, drawable, client, 0, DixReadAccess);
- if (rc != Success)
- return rc;
-
- memset(&xgi, 0, sizeof(xGetImageReply));
-
- relx = x;
- rely = y;
-
- if(pDraw->type == DRAWABLE_WINDOW)
- {
- WindowPtr pWin = (WindowPtr)pDraw;
-
- /* "If the drawable is a window, the window must be viewable ... or a
- * BadMatch error results" */
- if (!pWin->viewable)
- return BadMatch;
-
- relx += pDraw->x;
- rely += pDraw->y;
-
- if (pDraw->pScreen->GetWindowPixmap) {
- PixmapPtr pPix = (*pDraw->pScreen->GetWindowPixmap) (pWin);
-
- pBoundingDraw = &pPix->drawable;
-#ifdef COMPOSITE
- relx -= pPix->screen_x;
- rely -= pPix->screen_y;
-#endif
- }
- else
- {
- pBoundingDraw = (DrawablePtr)WindowTable[pDraw->pScreen->myNum];
- }
-
- xgi.visual = wVisual (pWin);
- }
- else
- {
- pBoundingDraw = pDraw;
- xgi.visual = None;
- }
-
- /* "If the drawable is a pixmap, the given rectangle must be wholly
- * contained within the pixmap, or a BadMatch error results. If the
- * drawable is a window [...] it must be the case that if there were no
- * inferiors or overlapping windows, the specified rectangle of the window
- * would be fully visible on the screen and wholly contained within the
- * outside edges of the window, or a BadMatch error results."
- *
- * We relax the window case slightly to mean that the rectangle must exist
- * within the bounds of the window's backing pixmap. In particular, this
- * means that a GetImage request may succeed or fail with BadMatch depending
- * on whether any of its ancestor windows are redirected. */
- if(relx < 0 || relx + width > (int)pBoundingDraw->width ||
- rely < 0 || rely + height > (int)pBoundingDraw->height)
- return BadMatch;
-
- xgi.type = X_Reply;
- xgi.sequenceNumber = client->sequence;
- xgi.depth = pDraw->depth;
- if(format == ZPixmap)
- {
- widthBytesLine = PixmapBytePad(width, pDraw->depth);
- length = widthBytesLine * height;
-
- }
- else
- {
- widthBytesLine = BitmapBytePad(width);
- plane = ((Mask)1) << (pDraw->depth - 1);
- /* only planes asked for */
- length = widthBytesLine * height *
- Ones(planemask & (plane | (plane - 1)));
-
- }
-
- xgi.length = length;
-
- if (im_return) {
- pBuf = xcalloc(1, sz_xGetImageReply + length);
- if (!pBuf)
- return (BadAlloc);
- if (widthBytesLine == 0)
- linesPerBuf = 0;
- else
- linesPerBuf = height;
- *im_return = (xGetImageReply *)pBuf;
- *(xGetImageReply *)pBuf = xgi;
- pBuf += sz_xGetImageReply;
- } else {
- xgi.length = bytes_to_int32(xgi.length);
- if (widthBytesLine == 0 || height == 0)
- linesPerBuf = 0;
- else if (widthBytesLine >= IMAGE_BUFSIZE)
- linesPerBuf = 1;
- else
- {
- linesPerBuf = IMAGE_BUFSIZE / widthBytesLine;
- if (linesPerBuf > height)
- linesPerBuf = height;
- }
- length = linesPerBuf * widthBytesLine;
- if (linesPerBuf < height)
- {
- /* we have to make sure intermediate buffers don't need padding */
- while ((linesPerBuf > 1) &&
- (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1)))
- {
- linesPerBuf--;
- length -= widthBytesLine;
- }
- while (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1))
- {
- linesPerBuf++;
- length += widthBytesLine;
- }
- }
- if(!(pBuf = xcalloc(1, length)))
- return (BadAlloc);
- WriteReplyToClient(client, sizeof (xGetImageReply), &xgi);
- }
-
- if (pDraw->type == DRAWABLE_WINDOW)
- {
- pVisibleRegion = NotClippedByChildren((WindowPtr)pDraw);
- if (pVisibleRegion)
- {
- REGION_TRANSLATE(pDraw->pScreen, pVisibleRegion,
- -pDraw->x, -pDraw->y);
- }
- }
-
- if (linesPerBuf == 0)
- {
- /* nothing to do */
- }
- else if (format == ZPixmap)
- {
- linesDone = 0;
- while (height - linesDone > 0)
- {
- nlines = min(linesPerBuf, height - linesDone);
- (*pDraw->pScreen->GetImage) (pDraw,
- x,
- y + linesDone,
- width,
- nlines,
- format,
- planemask,
- (pointer) pBuf);
- if (pVisibleRegion)
- XaceCensorImage(client, pVisibleRegion, widthBytesLine,
- pDraw, x, y + linesDone, width,
- nlines, format, pBuf);
-
- /* Note that this is NOT a call to WriteSwappedDataToClient,
- as we do NOT byte swap */
- if (!im_return)
- {
- ReformatImage (pBuf, (int)(nlines * widthBytesLine),
- BitsPerPixel (pDraw->depth),
- ClientOrder(client));
-
-/* Don't split me, gcc pukes when you do */
- (void)WriteToClient(client,
- (int)(nlines * widthBytesLine),
- pBuf);
- }
- linesDone += nlines;
- }
- }
- else /* XYPixmap */
- {
- for (; plane; plane >>= 1)
- {
- if (planemask & plane)
- {
- linesDone = 0;
- while (height - linesDone > 0)
- {
- nlines = min(linesPerBuf, height - linesDone);
- (*pDraw->pScreen->GetImage) (pDraw,
- x,
- y + linesDone,
- width,
- nlines,
- format,
- plane,
- (pointer)pBuf);
- if (pVisibleRegion)
- XaceCensorImage(client, pVisibleRegion,
- widthBytesLine,
- pDraw, x, y + linesDone, width,
- nlines, format, pBuf);
-
- /* Note: NOT a call to WriteSwappedDataToClient,
- as we do NOT byte swap */
- if (im_return) {
- pBuf += nlines * widthBytesLine;
- } else {
- ReformatImage (pBuf,
- (int)(nlines * widthBytesLine),
- 1,
- ClientOrder (client));
-
-/* Don't split me, gcc pukes when you do */
- (void)WriteToClient(client,
- (int)(nlines * widthBytesLine),
- pBuf);
- }
- linesDone += nlines;
- }
- }
- }
- }
- if (pVisibleRegion)
- REGION_DESTROY(pDraw->pScreen, pVisibleRegion);
- if (!im_return)
- xfree(pBuf);
- return (client->noClientException);
-}
-
-int
-ProcGetImage(ClientPtr client)
-{
- REQUEST(xGetImageReq);
-
- REQUEST_SIZE_MATCH(xGetImageReq);
-
- return DoGetImage(client, stuff->format, stuff->drawable,
- stuff->x, stuff->y,
- (int)stuff->width, (int)stuff->height,
- stuff->planeMask, (xGetImageReply **)NULL);
-}
-
-int
-ProcPolyText(ClientPtr client)
-{
- int err;
- REQUEST(xPolyTextReq);
- DrawablePtr pDraw;
- GC *pGC;
-
- REQUEST_AT_LEAST_SIZE(xPolyTextReq);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
-
- err = PolyText(client,
- pDraw,
- pGC,
- (unsigned char *)&stuff[1],
- ((unsigned char *) stuff) + (client->req_len << 2),
- stuff->x,
- stuff->y,
- stuff->reqType,
- stuff->drawable);
-
- if (err == Success)
- {
- return(client->noClientException);
- }
- else
- return err;
-}
-
-int
-ProcImageText8(ClientPtr client)
-{
- int err;
- DrawablePtr pDraw;
- GC *pGC;
-
- REQUEST(xImageTextReq);
-
- REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
-
- err = ImageText(client,
- pDraw,
- pGC,
- stuff->nChars,
- (unsigned char *)&stuff[1],
- stuff->x,
- stuff->y,
- stuff->reqType,
- stuff->drawable);
-
- if (err == Success)
- {
- return(client->noClientException);
- }
- else
- return err;
-}
-
-int
-ProcImageText16(ClientPtr client)
-{
- int err;
- DrawablePtr pDraw;
- GC *pGC;
-
- REQUEST(xImageTextReq);
-
- REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars << 1);
- VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
-
- err = ImageText(client,
- pDraw,
- pGC,
- stuff->nChars,
- (unsigned char *)&stuff[1],
- stuff->x,
- stuff->y,
- stuff->reqType,
- stuff->drawable);
-
- if (err == Success)
- {
- return(client->noClientException);
- }
- else
- return err;
-}
-
-
-int
-ProcCreateColormap(ClientPtr client)
-{
- VisualPtr pVisual;
- ColormapPtr pmap;
- Colormap mid;
- WindowPtr pWin;
- ScreenPtr pScreen;
- REQUEST(xCreateColormapReq);
- int i, result;
-
- REQUEST_SIZE_MATCH(xCreateColormapReq);
-
- if ((stuff->alloc != AllocNone) && (stuff->alloc != AllocAll))
- {
- client->errorValue = stuff->alloc;
- return(BadValue);
- }
- mid = stuff->mid;
- LEGAL_NEW_RESOURCE(mid, client);
- result = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
- if (result != Success)
- return result;
-
- pScreen = pWin->drawable.pScreen;
- for (i = 0, pVisual = pScreen->visuals;
- i < pScreen->numVisuals;
- i++, pVisual++)
- {
- if (pVisual->vid != stuff->visual)
- continue;
- result = CreateColormap(mid, pScreen, pVisual, &pmap,
- (int)stuff->alloc, client->index);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return(result);
- }
- client->errorValue = stuff->visual;
- return(BadMatch);
-}
-
-int
-ProcFreeColormap(ClientPtr client)
-{
- ColormapPtr pmap;
- int rc;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupResourceByType((pointer *)&pmap, stuff->id, RT_COLORMAP, client,
- DixDestroyAccess);
- if (rc == Success)
- {
- /* Freeing a default colormap is a no-op */
- if (!(pmap->flags & IsDefault))
- FreeResource(stuff->id, RT_NONE);
- return (client->noClientException);
- }
- else
- {
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-
-int
-ProcCopyColormapAndFree(ClientPtr client)
-{
- Colormap mid;
- ColormapPtr pSrcMap;
- REQUEST(xCopyColormapAndFreeReq);
- int rc;
-
- REQUEST_SIZE_MATCH(xCopyColormapAndFreeReq);
- mid = stuff->mid;
- LEGAL_NEW_RESOURCE(mid, client);
- rc = dixLookupResourceByType((pointer *)&pSrcMap, stuff->srcCmap, RT_COLORMAP,
- client, DixReadAccess|DixRemoveAccess);
- if (rc == Success)
- {
- rc = CopyColormapAndFree(mid, pSrcMap, client->index);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
- else
- {
- client->errorValue = stuff->srcCmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcInstallColormap(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client,
- DixInstallAccess);
- if (rc != Success)
- goto out;
-
- rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess);
- if (rc != Success)
- goto out;
-
- (*(pcmp->pScreen->InstallColormap)) (pcmp);
-
- rc = client->noClientException;
-out:
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadColor : rc;
-}
-
-int
-ProcUninstallColormap(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client,
- DixUninstallAccess);
- if (rc != Success)
- goto out;
-
- rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess);
- if (rc != Success)
- goto out;
-
- if(pcmp->mid != pcmp->pScreen->defColormap)
- (*(pcmp->pScreen->UninstallColormap)) (pcmp);
-
- rc = client->noClientException;
-out:
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadColor : rc;
-}
-
-int
-ProcListInstalledColormaps(ClientPtr client)
-{
- xListInstalledColormapsReply *preply;
- int nummaps, rc;
- WindowPtr pWin;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
- if (rc != Success)
- goto out;
-
- rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
- DixGetAttrAccess);
- if (rc != Success)
- goto out;
-
- preply = xalloc(sizeof(xListInstalledColormapsReply) +
- pWin->drawable.pScreen->maxInstalledCmaps *
- sizeof(Colormap));
- if(!preply)
- return(BadAlloc);
-
- preply->type = X_Reply;
- preply->sequenceNumber = client->sequence;
- nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps)
- (pWin->drawable.pScreen, (Colormap *)&preply[1]);
- preply->nColormaps = nummaps;
- preply->length = nummaps;
- WriteReplyToClient(client, sizeof (xListInstalledColormapsReply), preply);
- client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
- WriteSwappedDataToClient(client, nummaps * sizeof(Colormap), &preply[1]);
- xfree(preply);
- rc = client->noClientException;
-out:
- return rc;
-}
-
-int
-ProcAllocColor (ClientPtr client)
-{
- ColormapPtr pmap;
- int rc;
- xAllocColorReply acr;
- REQUEST(xAllocColorReq);
-
- REQUEST_SIZE_MATCH(xAllocColorReq);
- rc = dixLookupResourceByType((pointer *)&pmap, stuff->cmap, RT_COLORMAP, client,
- DixAddAccess);
- if (rc == Success)
- {
- acr.type = X_Reply;
- acr.length = 0;
- acr.sequenceNumber = client->sequence;
- acr.red = stuff->red;
- acr.green = stuff->green;
- acr.blue = stuff->blue;
- acr.pixel = 0;
- if( (rc = AllocColor(pmap, &acr.red, &acr.green, &acr.blue,
- &acr.pixel, client->index)) )
- {
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
-#ifdef PANORAMIX
- if (noPanoramiXExtension || !pmap->pScreen->myNum)
-#endif
- WriteReplyToClient(client, sizeof(xAllocColorReply), &acr);
- return (client->noClientException);
-
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcAllocNamedColor (ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xAllocNamedColorReq);
-
- REQUEST_FIXED_SIZE(xAllocNamedColorReq, stuff->nbytes);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixAddAccess);
- if (rc == Success)
- {
- xAllocNamedColorReply ancr;
-
- ancr.type = X_Reply;
- ancr.length = 0;
- ancr.sequenceNumber = client->sequence;
-
- if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes,
- &ancr.exactRed, &ancr.exactGreen, &ancr.exactBlue))
- {
- ancr.screenRed = ancr.exactRed;
- ancr.screenGreen = ancr.exactGreen;
- ancr.screenBlue = ancr.exactBlue;
- ancr.pixel = 0;
- if( (rc = AllocColor(pcmp,
- &ancr.screenRed, &ancr.screenGreen, &ancr.screenBlue,
- &ancr.pixel, client->index)) )
- {
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
-#ifdef PANORAMIX
- if (noPanoramiXExtension || !pcmp->pScreen->myNum)
-#endif
- WriteReplyToClient(client, sizeof (xAllocNamedColorReply), &ancr);
- return (client->noClientException);
- }
- else
- return(BadName);
-
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcAllocColorCells (ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xAllocColorCellsReq);
-
- REQUEST_SIZE_MATCH(xAllocColorCellsReq);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixAddAccess);
- if (rc == Success)
- {
- xAllocColorCellsReply accr;
- int npixels, nmasks;
- long length;
- Pixel *ppixels, *pmasks;
-
- npixels = stuff->colors;
- if (!npixels)
- {
- client->errorValue = npixels;
- return (BadValue);
- }
- if (stuff->contiguous != xTrue && stuff->contiguous != xFalse)
- {
- client->errorValue = stuff->contiguous;
- return (BadValue);
- }
- nmasks = stuff->planes;
- length = ((long)npixels + (long)nmasks) * sizeof(Pixel);
- ppixels = xalloc(length);
- if(!ppixels)
- return(BadAlloc);
- pmasks = ppixels + npixels;
-
- if( (rc = AllocColorCells(client->index, pcmp, npixels, nmasks,
- (Bool)stuff->contiguous, ppixels, pmasks)) )
- {
- xfree(ppixels);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
-#ifdef PANORAMIX
- if (noPanoramiXExtension || !pcmp->pScreen->myNum)
-#endif
- {
- accr.type = X_Reply;
- accr.length = bytes_to_int32(length);
- accr.sequenceNumber = client->sequence;
- accr.nPixels = npixels;
- accr.nMasks = nmasks;
- WriteReplyToClient(client, sizeof (xAllocColorCellsReply), &accr);
- client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
- WriteSwappedDataToClient(client, length, ppixels);
- }
- xfree(ppixels);
- return (client->noClientException);
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcAllocColorPlanes(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xAllocColorPlanesReq);
-
- REQUEST_SIZE_MATCH(xAllocColorPlanesReq);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixAddAccess);
- if (rc == Success)
- {
- xAllocColorPlanesReply acpr;
- int npixels;
- long length;
- Pixel *ppixels;
-
- npixels = stuff->colors;
- if (!npixels)
- {
- client->errorValue = npixels;
- return (BadValue);
- }
- if (stuff->contiguous != xTrue && stuff->contiguous != xFalse)
- {
- client->errorValue = stuff->contiguous;
- return (BadValue);
- }
- acpr.type = X_Reply;
- acpr.sequenceNumber = client->sequence;
- acpr.nPixels = npixels;
- length = (long)npixels * sizeof(Pixel);
- ppixels = xalloc(length);
- if(!ppixels)
- return(BadAlloc);
- if( (rc = AllocColorPlanes(client->index, pcmp, npixels,
- (int)stuff->red, (int)stuff->green, (int)stuff->blue,
- (Bool)stuff->contiguous, ppixels,
- &acpr.redMask, &acpr.greenMask, &acpr.blueMask)) )
- {
- xfree(ppixels);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
- acpr.length = bytes_to_int32(length);
-#ifdef PANORAMIX
- if (noPanoramiXExtension || !pcmp->pScreen->myNum)
-#endif
- {
- WriteReplyToClient(client, sizeof(xAllocColorPlanesReply), &acpr);
- client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
- WriteSwappedDataToClient(client, length, ppixels);
- }
- xfree(ppixels);
- return (client->noClientException);
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcFreeColors(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xFreeColorsReq);
-
- REQUEST_AT_LEAST_SIZE(xFreeColorsReq);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixRemoveAccess);
- if (rc == Success)
- {
- int count;
-
- if(pcmp->flags & AllAllocated)
- return(BadAccess);
- count = bytes_to_int32((client->req_len << 2) - sizeof(xFreeColorsReq));
- rc = FreeColors(pcmp, client->index, count,
- (Pixel *)&stuff[1], (Pixel)stuff->planeMask);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return rc;
- }
-
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcStoreColors (ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xStoreColorsReq);
-
- REQUEST_AT_LEAST_SIZE(xStoreColorsReq);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixWriteAccess);
- if (rc == Success)
- {
- int count;
-
- count = (client->req_len << 2) - sizeof(xStoreColorsReq);
- if (count % sizeof(xColorItem))
- return(BadLength);
- count /= sizeof(xColorItem);
- rc = StoreColors(pcmp, count, (xColorItem *)&stuff[1]);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return rc;
- }
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcStoreNamedColor (ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xStoreNamedColorReq);
-
- REQUEST_FIXED_SIZE(xStoreNamedColorReq, stuff->nbytes);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixWriteAccess);
- if (rc == Success)
- {
- xColorItem def;
-
- if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1],
- stuff->nbytes, &def.red, &def.green, &def.blue))
- {
- def.flags = stuff->flags;
- def.pixel = stuff->pixel;
- rc = StoreColors(pcmp, 1, &def);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- return rc;
- }
- return (BadName);
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcQueryColors(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xQueryColorsReq);
-
- REQUEST_AT_LEAST_SIZE(xQueryColorsReq);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixReadAccess);
- if (rc == Success)
- {
- int count;
- xrgb *prgbs;
- xQueryColorsReply qcr;
-
- count = bytes_to_int32((client->req_len << 2) - sizeof(xQueryColorsReq));
- prgbs = xcalloc(1, count * sizeof(xrgb));
- if(!prgbs && count)
- return(BadAlloc);
- if( (rc = QueryColors(pcmp, count, (Pixel *)&stuff[1], prgbs)) )
- {
- if (prgbs) xfree(prgbs);
- if (client->noClientException != Success)
- return(client->noClientException);
- else
- {
- client->errorValue = clientErrorValue;
- return rc;
- }
- }
- memset(&qcr, 0, sizeof(xQueryColorsReply));
- qcr.type = X_Reply;
- qcr.length = bytes_to_int32(count * sizeof(xrgb));
- qcr.sequenceNumber = client->sequence;
- qcr.nColors = count;
- WriteReplyToClient(client, sizeof(xQueryColorsReply), &qcr);
- if (count)
- {
- client->pSwapReplyFunc = (ReplySwapPtr) SQColorsExtend;
- WriteSwappedDataToClient(client, count * sizeof(xrgb), prgbs);
- }
- if (prgbs) xfree(prgbs);
- return(client->noClientException);
-
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcLookupColor(ClientPtr client)
-{
- ColormapPtr pcmp;
- int rc;
- REQUEST(xLookupColorReq);
-
- REQUEST_FIXED_SIZE(xLookupColorReq, stuff->nbytes);
- rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
- DixReadAccess);
- if (rc == Success)
- {
- xLookupColorReply lcr;
-
- if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes,
- &lcr.exactRed, &lcr.exactGreen, &lcr.exactBlue))
- {
- lcr.type = X_Reply;
- lcr.length = 0;
- lcr.sequenceNumber = client->sequence;
- lcr.screenRed = lcr.exactRed;
- lcr.screenGreen = lcr.exactGreen;
- lcr.screenBlue = lcr.exactBlue;
- (*pcmp->pScreen->ResolveColor)(&lcr.screenRed,
- &lcr.screenGreen,
- &lcr.screenBlue,
- pcmp->pVisual);
- WriteReplyToClient(client, sizeof(xLookupColorReply), &lcr);
- return(client->noClientException);
- }
- return (BadName);
- }
- else
- {
- client->errorValue = stuff->cmap;
- return (rc == BadValue) ? BadColor : rc;
- }
-}
-
-int
-ProcCreateCursor (ClientPtr client)
-{
- CursorPtr pCursor;
- PixmapPtr src;
- PixmapPtr msk;
- unsigned char * srcbits;
- unsigned char * mskbits;
- unsigned short width, height;
- long n;
- CursorMetricRec cm;
- int rc;
-
- REQUEST(xCreateCursorReq);
-
- REQUEST_SIZE_MATCH(xCreateCursorReq);
- LEGAL_NEW_RESOURCE(stuff->cid, client);
-
- rc = dixLookupResourceByType((pointer *)&src, stuff->source, RT_PIXMAP, client,
- DixReadAccess);
- if (rc != Success) {
- client->errorValue = stuff->source;
- return (rc == BadValue) ? BadPixmap : rc;
- }
-
- rc = dixLookupResourceByType((pointer *)&msk, stuff->mask, RT_PIXMAP, client,
- DixReadAccess);
- if (rc != Success)
- {
- if (stuff->mask != None)
- {
- client->errorValue = stuff->mask;
- return (rc == BadValue) ? BadPixmap : rc;
- }
- }
- else if ( src->drawable.width != msk->drawable.width
- || src->drawable.height != msk->drawable.height
- || src->drawable.depth != 1
- || msk->drawable.depth != 1)
- return (BadMatch);
-
- width = src->drawable.width;
- height = src->drawable.height;
-
- if ( stuff->x > width
- || stuff->y > height )
- return (BadMatch);
-
- n = BitmapBytePad(width)*height;
- srcbits = xcalloc(1, n);
- if (!srcbits)
- return (BadAlloc);
- mskbits = xalloc(n);
- if (!mskbits)
- {
- xfree(srcbits);
- return (BadAlloc);
- }
-
- (* src->drawable.pScreen->GetImage)( (DrawablePtr)src, 0, 0, width, height,
- XYPixmap, 1, (pointer)srcbits);
- if ( msk == (PixmapPtr)NULL)
- {
- unsigned char *bits = mskbits;
- while (--n >= 0)
- *bits++ = ~0;
- }
- else
- {
- /* zeroing the (pad) bits helps some ddx cursor handling */
- bzero((char *)mskbits, n);
- (* msk->drawable.pScreen->GetImage)( (DrawablePtr)msk, 0, 0, width,
- height, XYPixmap, 1, (pointer)mskbits);
- }
- cm.width = width;
- cm.height = height;
- cm.xhot = stuff->x;
- cm.yhot = stuff->y;
- rc = AllocARGBCursor(srcbits, mskbits, NULL, &cm,
- stuff->foreRed, stuff->foreGreen, stuff->foreBlue,
- stuff->backRed, stuff->backGreen, stuff->backBlue,
- &pCursor, client, stuff->cid);
-
- if (rc != Success)
- return rc;
- if (!AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor))
- return BadAlloc;
-
- return client->noClientException;
-}
-
-int
-ProcCreateGlyphCursor (ClientPtr client)
-{
- CursorPtr pCursor;
- int res;
-
- REQUEST(xCreateGlyphCursorReq);
-
- REQUEST_SIZE_MATCH(xCreateGlyphCursorReq);
- LEGAL_NEW_RESOURCE(stuff->cid, client);
-
- res = AllocGlyphCursor(stuff->source, stuff->sourceChar,
- stuff->mask, stuff->maskChar,
- stuff->foreRed, stuff->foreGreen, stuff->foreBlue,
- stuff->backRed, stuff->backGreen, stuff->backBlue,
- &pCursor, client, stuff->cid);
- if (res != Success)
- return res;
- if (AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor))
- return client->noClientException;
- return BadAlloc;
-}
-
-
-int
-ProcFreeCursor (ClientPtr client)
-{
- CursorPtr pCursor;
- int rc;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- rc = dixLookupResourceByType((pointer *)&pCursor, stuff->id, RT_CURSOR, client,
- DixDestroyAccess);
- if (rc == Success)
- {
- FreeResource(stuff->id, RT_NONE);
- return (client->noClientException);
- }
- else
- {
- client->errorValue = stuff->id;
- return (rc == BadValue) ? BadCursor : rc;
- }
-}
-
-int
-ProcQueryBestSize (ClientPtr client)
-{
- xQueryBestSizeReply reply;
- DrawablePtr pDraw;
- ScreenPtr pScreen;
- int rc;
- REQUEST(xQueryBestSizeReq);
- REQUEST_SIZE_MATCH(xQueryBestSizeReq);
-
- if ((stuff->class != CursorShape) &&
- (stuff->class != TileShape) &&
- (stuff->class != StippleShape))
- {
- client->errorValue = stuff->class;
- return(BadValue);
- }
-
- rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
- DixGetAttrAccess);
- if (rc != Success)
- return rc;
- if (stuff->class != CursorShape && pDraw->type == UNDRAWABLE_WINDOW)
- return (BadMatch);
- pScreen = pDraw->pScreen;
- rc = XaceHook(XACE_SCREEN_ACCESS, client, pScreen, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- (* pScreen->QueryBestSize)(stuff->class, &stuff->width,
- &stuff->height, pScreen);
- memset(&reply, 0, sizeof(xQueryBestSizeReply));
- reply.type = X_Reply;
- reply.length = 0;
- reply.sequenceNumber = client->sequence;
- reply.width = stuff->width;
- reply.height = stuff->height;
- WriteReplyToClient(client, sizeof(xQueryBestSizeReply), &reply);
- return (client->noClientException);
-}
-
-
-int
-ProcSetScreenSaver (ClientPtr client)
-{
- int rc, i, blankingOption, exposureOption;
- REQUEST(xSetScreenSaverReq);
- REQUEST_SIZE_MATCH(xSetScreenSaverReq);
-
- for (i = 0; i < screenInfo.numScreens; i++) {
- rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
- DixSetAttrAccess);
- if (rc != Success)
- return rc;
- }
-
- blankingOption = stuff->preferBlank;
- if ((blankingOption != DontPreferBlanking) &&
- (blankingOption != PreferBlanking) &&
- (blankingOption != DefaultBlanking))
- {
- client->errorValue = blankingOption;
- return BadValue;
- }
- exposureOption = stuff->allowExpose;
- if ((exposureOption != DontAllowExposures) &&
- (exposureOption != AllowExposures) &&
- (exposureOption != DefaultExposures))
- {
- client->errorValue = exposureOption;
- return BadValue;
- }
- if (stuff->timeout < -1)
- {
- client->errorValue = stuff->timeout;
- return BadValue;
- }
- if (stuff->interval < -1)
- {
- client->errorValue = stuff->interval;
- return BadValue;
- }
-
- if (blankingOption == DefaultBlanking)
- ScreenSaverBlanking = defaultScreenSaverBlanking;
- else
- ScreenSaverBlanking = blankingOption;
- if (exposureOption == DefaultExposures)
- ScreenSaverAllowExposures = defaultScreenSaverAllowExposures;
- else
- ScreenSaverAllowExposures = exposureOption;
-
- if (stuff->timeout >= 0)
- ScreenSaverTime = stuff->timeout * MILLI_PER_SECOND;
- else
- ScreenSaverTime = defaultScreenSaverTime;
- if (stuff->interval >= 0)
- ScreenSaverInterval = stuff->interval * MILLI_PER_SECOND;
- else
- ScreenSaverInterval = defaultScreenSaverInterval;
-
- SetScreenSaverTimer();
- return (client->noClientException);
-}
-
-int
-ProcGetScreenSaver(ClientPtr client)
-{
- xGetScreenSaverReply rep;
- int rc, i;
- REQUEST_SIZE_MATCH(xReq);
-
- for (i = 0; i < screenInfo.numScreens; i++) {
- rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
- DixGetAttrAccess);
- if (rc != Success)
- return rc;
- }
-
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- rep.timeout = ScreenSaverTime / MILLI_PER_SECOND;
- rep.interval = ScreenSaverInterval / MILLI_PER_SECOND;
- rep.preferBlanking = ScreenSaverBlanking;
- rep.allowExposures = ScreenSaverAllowExposures;
- WriteReplyToClient(client, sizeof(xGetScreenSaverReply), &rep);
- return (client->noClientException);
-}
-
-int
-ProcChangeHosts(ClientPtr client)
-{
- REQUEST(xChangeHostsReq);
- int result;
-
- REQUEST_FIXED_SIZE(xChangeHostsReq, stuff->hostLength);
-
- if(stuff->mode == HostInsert)
- result = AddHost(client, (int)stuff->hostFamily,
- stuff->hostLength, (pointer)&stuff[1]);
- else if (stuff->mode == HostDelete)
- result = RemoveHost(client, (int)stuff->hostFamily,
- stuff->hostLength, (pointer)&stuff[1]);
- else
- {
- client->errorValue = stuff->mode;
- return BadValue;
- }
- if (!result)
- result = client->noClientException;
- return (result);
-}
-
-int
-ProcListHosts(ClientPtr client)
-{
- xListHostsReply reply;
- int len, nHosts, result;
- pointer pdata;
- /* REQUEST(xListHostsReq); */
-
- REQUEST_SIZE_MATCH(xListHostsReq);
-
- /* untrusted clients can't list hosts */
- result = XaceHook(XACE_SERVER_ACCESS, client, DixReadAccess);
- if (result != Success)
- return result;
-
- result = GetHosts(&pdata, &nHosts, &len, &reply.enabled);
- if (result != Success)
- return(result);
- reply.type = X_Reply;
- reply.sequenceNumber = client->sequence;
- reply.nHosts = nHosts;
- reply.length = bytes_to_int32(len);
- WriteReplyToClient(client, sizeof(xListHostsReply), &reply);
- if (nHosts)
- {
- client->pSwapReplyFunc = (ReplySwapPtr) SLHostsExtend;
- WriteSwappedDataToClient(client, len, pdata);
- }
- xfree(pdata);
- return (client->noClientException);
-}
-
-int
-ProcChangeAccessControl(ClientPtr client)
-{
- int result;
- REQUEST(xSetAccessControlReq);
-
- REQUEST_SIZE_MATCH(xSetAccessControlReq);
- if ((stuff->mode != EnableAccess) && (stuff->mode != DisableAccess))
- {
- client->errorValue = stuff->mode;
- return BadValue;
- }
- result = ChangeAccessControl(client, stuff->mode == EnableAccess);
- if (!result)
- result = client->noClientException;
- return (result);
-}
-
-/*********************
- * CloseDownRetainedResources
- *
- * Find all clients that are gone and have terminated in RetainTemporary
- * and destroy their resources.
- *********************/
-
-static void
-CloseDownRetainedResources(void)
-{
- int i;
- ClientPtr client;
-
- for (i=1; i<currentMaxClients; i++)
- {
- client = clients[i];
- if (client && (client->closeDownMode == RetainTemporary)
- && (client->clientGone))
- CloseDownClient(client);
- }
-}
-
-int
-ProcKillClient(ClientPtr client)
-{
- REQUEST(xResourceReq);
- ClientPtr killclient;
- int rc;
-
- REQUEST_SIZE_MATCH(xResourceReq);
- if (stuff->id == AllTemporary)
- {
- CloseDownRetainedResources();
- return (client->noClientException);
- }
-
- rc = dixLookupClient(&killclient, stuff->id, client, DixDestroyAccess);
- if (rc == Success) {
- CloseDownClient(killclient);
- /* if an LBX proxy gets killed, isItTimeToYield will be set */
- if (isItTimeToYield || (client == killclient))
- {
- /* force yield and return Success, so that Dispatch()
- * doesn't try to touch client
- */
- isItTimeToYield = TRUE;
- return (Success);
- }
- return (client->noClientException);
- }
- else
- return rc;
-}
-
-int
-ProcSetFontPath(ClientPtr client)
-{
- unsigned char *ptr;
- unsigned long nbytes, total;
- long nfonts;
- int n, result;
- int error;
- REQUEST(xSetFontPathReq);
-
- REQUEST_AT_LEAST_SIZE(xSetFontPathReq);
-
- nbytes = (client->req_len << 2) - sizeof(xSetFontPathReq);
- total = nbytes;
- ptr = (unsigned char *)&stuff[1];
- nfonts = stuff->nFonts;
- while (--nfonts >= 0)
- {
- if ((total == 0) || (total < (n = (*ptr + 1))))
- return(BadLength);
- total -= n;
- ptr += n;
- }
- if (total >= 4)
- return(BadLength);
- result = SetFontPath(client, stuff->nFonts, (unsigned char *)&stuff[1],
- &error);
- if (!result)
- {
- result = client->noClientException;
- client->errorValue = error;
- }
- return (result);
-}
-
-int
-ProcGetFontPath(ClientPtr client)
-{
- xGetFontPathReply reply;
- int rc, stringLens, numpaths;
- unsigned char *bufferStart;
- /* REQUEST (xReq); */
-
- REQUEST_SIZE_MATCH(xReq);
- rc = GetFontPath(client, &numpaths, &stringLens, &bufferStart);
- if (rc != Success)
- return rc;
-
- reply.type = X_Reply;
- reply.sequenceNumber = client->sequence;
- reply.length = bytes_to_int32(stringLens + numpaths);
- reply.nPaths = numpaths;
-
- WriteReplyToClient(client, sizeof(xGetFontPathReply), &reply);
- if (stringLens || numpaths)
- (void)WriteToClient(client, stringLens + numpaths, (char *)bufferStart);
- return(client->noClientException);
-}
-
-int
-ProcChangeCloseDownMode(ClientPtr client)
-{
- int rc;
- REQUEST(xSetCloseDownModeReq);
- REQUEST_SIZE_MATCH(xSetCloseDownModeReq);
-
- rc = XaceHook(XACE_CLIENT_ACCESS, client, client, DixManageAccess);
- if (rc != Success)
- return rc;
-
- if ((stuff->mode == AllTemporary) ||
- (stuff->mode == RetainPermanent) ||
- (stuff->mode == RetainTemporary))
- {
- client->closeDownMode = stuff->mode;
- return (client->noClientException);
- }
- else
- {
- client->errorValue = stuff->mode;
- return (BadValue);
- }
-}
-
-int ProcForceScreenSaver(ClientPtr client)
-{
- int rc;
- REQUEST(xForceScreenSaverReq);
-
- REQUEST_SIZE_MATCH(xForceScreenSaverReq);
-
- if ((stuff->mode != ScreenSaverReset) &&
- (stuff->mode != ScreenSaverActive))
- {
- client->errorValue = stuff->mode;
- return BadValue;
- }
- rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, (int)stuff->mode);
- if (rc != Success)
- return rc;
- return client->noClientException;
-}
-
-int ProcNoOperation(ClientPtr client)
-{
- REQUEST_AT_LEAST_SIZE(xReq);
-
- /* noop -- don't do anything */
- return(client->noClientException);
-}
-
-void
-InitProcVectors(void)
-{
- int i;
- for (i = 0; i<256; i++)
- {
- if(!ProcVector[i])
- {
- ProcVector[i] = SwappedProcVector[i] = ProcBadRequest;
- ReplySwapVector[i] = ReplyNotSwappd;
- }
- }
- for(i = LASTEvent; i < 128; i++)
- {
- EventSwapVector[i] = NotImplemented;
- }
-
-}
-
-/**********************
- * CloseDownClient
- *
- * Client can either mark his resources destroy or retain. If retained and
- * then killed again, the client is really destroyed.
- *********************/
-
-char dispatchExceptionAtReset = DE_RESET;
-
-void
-CloseDownClient(ClientPtr client)
-{
- Bool really_close_down = client->clientGone ||
- client->closeDownMode == DestroyAll;
-
- if (!client->clientGone)
- {
- /* ungrab server if grabbing client dies */
- if (grabState != GrabNone && grabClient == client)
- {
- UngrabServer(client);
- }
- BITCLEAR(grabWaiters, client->index);
- DeleteClientFromAnySelections(client);
- ReleaseActiveGrabs(client);
- DeleteClientFontStuff(client);
- if (!really_close_down)
- {
- /* This frees resources that should never be retained
- * no matter what the close down mode is. Actually we
- * could do this unconditionally, but it's probably
- * better not to traverse all the client's resources
- * twice (once here, once a few lines down in
- * FreeClientResources) in the common case of
- * really_close_down == TRUE.
- */
- FreeClientNeverRetainResources(client);
- client->clientState = ClientStateRetained;
- if (ClientStateCallback)
- {
- NewClientInfoRec clientinfo;
-
- clientinfo.client = client;
- clientinfo.prefix = (xConnSetupPrefix *)NULL;
- clientinfo.setup = (xConnSetup *) NULL;
- CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
- }
- }
- client->clientGone = TRUE; /* so events aren't sent to client */
- if (ClientIsAsleep(client))
- ClientSignal (client);
- ProcessWorkQueueZombies();
- CloseDownConnection(client);
-
- /* If the client made it to the Running stage, nClients has
- * been incremented on its behalf, so we need to decrement it
- * now. If it hasn't gotten to Running, nClients has *not*
- * been incremented, so *don't* decrement it.
- */
- if (client->clientState != ClientStateInitial &&
- client->clientState != ClientStateAuthenticating )
- {
- --nClients;
- }
- }
-
- if (really_close_down)
- {
- if (client->clientState == ClientStateRunning && nClients == 0)
- dispatchException |= dispatchExceptionAtReset;
-
- client->clientState = ClientStateGone;
- if (ClientStateCallback)
- {
- NewClientInfoRec clientinfo;
-
- clientinfo.client = client;
- clientinfo.prefix = (xConnSetupPrefix *)NULL;
- clientinfo.setup = (xConnSetup *) NULL;
- CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
- }
- FreeClientResources(client);
-#ifdef XSERVER_DTRACE
- XSERVER_CLIENT_DISCONNECT(client->index);
-#endif
- if (client->index < nextFreeClientID)
- nextFreeClientID = client->index;
- clients[client->index] = NullClient;
- SmartLastClient = NullClient;
- dixFreePrivates(client->devPrivates);
- xfree(client);
-
- while (!clients[currentMaxClients-1])
- currentMaxClients--;
- }
-}
-
-static void
-KillAllClients(void)
-{
- int i;
- for (i=1; i<currentMaxClients; i++)
- if (clients[i]) {
- /* Make sure Retained clients are released. */
- clients[i]->closeDownMode = DestroyAll;
- CloseDownClient(clients[i]);
- }
-}
-
-void InitClient(ClientPtr client, int i, pointer ospriv)
-{
- memset(client, 0, sizeof(*client));
- client->index = i;
- client->clientAsMask = ((Mask)i) << CLIENTOFFSET;
- client->closeDownMode = i ? DestroyAll : RetainPermanent;
- client->requestVector = InitialVector;
- client->osPrivate = ospriv;
- QueryMinMaxKeyCodes(&client->minKC,&client->maxKC);
- client->smart_start_tick = SmartScheduleTime;
- client->smart_stop_tick = SmartScheduleTime;
- client->smart_check_tick = SmartScheduleTime;
-}
-
-/************************
- * int NextAvailableClient(ospriv)
- *
- * OS dependent portion can't assign client id's because of CloseDownModes.
- * Returns NULL if there are no free clients.
- *************************/
-
-ClientPtr NextAvailableClient(pointer ospriv)
-{
- int i;
- ClientPtr client;
- xReq data;
-
- i = nextFreeClientID;
- if (i == MAXCLIENTS)
- return (ClientPtr)NULL;
- clients[i] = client = xalloc(sizeof(ClientRec));
- if (!client)
- return (ClientPtr)NULL;
- InitClient(client, i, ospriv);
- if (!InitClientResources(client))
- {
- xfree(client);
- return (ClientPtr)NULL;
- }
- data.reqType = 1;
- data.length = bytes_to_int32(sz_xReq + sz_xConnClientPrefix);
- if (!InsertFakeRequest(client, (char *)&data, sz_xReq))
- {
- FreeClientResources(client);
- xfree(client);
- return (ClientPtr)NULL;
- }
- if (i == currentMaxClients)
- currentMaxClients++;
- while ((nextFreeClientID < MAXCLIENTS) && clients[nextFreeClientID])
- nextFreeClientID++;
- if (ClientStateCallback)
- {
- NewClientInfoRec clientinfo;
-
- clientinfo.client = client;
- clientinfo.prefix = (xConnSetupPrefix *)NULL;
- clientinfo.setup = (xConnSetup *) NULL;
- CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
- }
- return(client);
-}
-
-int
-ProcInitialConnection(ClientPtr client)
-{
- REQUEST(xReq);
- xConnClientPrefix *prefix;
- int whichbyte = 1;
-
- prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq);
- if ((prefix->byteOrder != 'l') && (prefix->byteOrder != 'B'))
- return (client->noClientException = -1);
- if (((*(char *) &whichbyte) && (prefix->byteOrder == 'B')) ||
- (!(*(char *) &whichbyte) && (prefix->byteOrder == 'l')))
- {
- client->swapped = TRUE;
- SwapConnClientPrefix(prefix);
- }
- stuff->reqType = 2;
- stuff->length += bytes_to_int32(prefix->nbytesAuthProto) +
- bytes_to_int32(prefix->nbytesAuthString);
- if (client->swapped)
- {
- swaps(&stuff->length, whichbyte);
- }
- ResetCurrentRequest(client);
- return (client->noClientException);
-}
-
-static int
-SendConnSetup(ClientPtr client, char *reason)
-{
- xWindowRoot *root;
- int i;
- int numScreens;
- char* lConnectionInfo;
- xConnSetupPrefix* lconnSetupPrefix;
-
- if (reason)
- {
- xConnSetupPrefix csp;
-
- csp.success = xFalse;
- csp.lengthReason = strlen(reason);
- csp.length = bytes_to_int32(csp.lengthReason);
- csp.majorVersion = X_PROTOCOL;
- csp.minorVersion = X_PROTOCOL_REVISION;
- if (client->swapped)
- WriteSConnSetupPrefix(client, &csp);
- else
- (void)WriteToClient(client, sz_xConnSetupPrefix, (char *) &csp);
- (void)WriteToClient(client, (int)csp.lengthReason, reason);
- return (client->noClientException = -1);
- }
-
- numScreens = screenInfo.numScreens;
- lConnectionInfo = ConnectionInfo;
- lconnSetupPrefix = &connSetupPrefix;
-
- /* We're about to start speaking X protocol back to the client by
- * sending the connection setup info. This means the authorization
- * step is complete, and we can count the client as an
- * authorized one.
- */
- nClients++;
-
- client->requestVector = client->swapped ? SwappedProcVector : ProcVector;
- client->sequence = 0;
- ((xConnSetup *)lConnectionInfo)->ridBase = client->clientAsMask;
- ((xConnSetup *)lConnectionInfo)->ridMask = RESOURCE_ID_MASK;
-#ifdef MATCH_CLIENT_ENDIAN
- ((xConnSetup *)lConnectionInfo)->imageByteOrder = ClientOrder (client);
- ((xConnSetup *)lConnectionInfo)->bitmapBitOrder = ClientOrder (client);
-#endif
- /* fill in the "currentInputMask" */
- root = (xWindowRoot *)(lConnectionInfo + connBlockScreenStart);
-#ifdef PANORAMIX
- if (noPanoramiXExtension)
- numScreens = screenInfo.numScreens;
- else
- numScreens = ((xConnSetup *)ConnectionInfo)->numRoots;
-#endif
-
- for (i=0; i<numScreens; i++)
- {
- unsigned int j;
- xDepth *pDepth;
-
- root->currentInputMask = WindowTable[i]->eventMask |
- wOtherEventMasks (WindowTable[i]);
- pDepth = (xDepth *)(root + 1);
- for (j = 0; j < root->nDepths; j++)
- {
- pDepth = (xDepth *)(((char *)(pDepth + 1)) +
- pDepth->nVisuals * sizeof(xVisualType));
- }
- root = (xWindowRoot *)pDepth;
- }
-
- if (client->swapped)
- {
- WriteSConnSetupPrefix(client, lconnSetupPrefix);
- WriteSConnectionInfo(client,
- (unsigned long)(lconnSetupPrefix->length << 2),
- lConnectionInfo);
- }
- else
- {
- (void)WriteToClient(client, sizeof(xConnSetupPrefix),
- (char *) lconnSetupPrefix);
- (void)WriteToClient(client, (int)(lconnSetupPrefix->length << 2),
- lConnectionInfo);
- }
- client->clientState = ClientStateRunning;
- if (ClientStateCallback)
- {
- NewClientInfoRec clientinfo;
-
- clientinfo.client = client;
- clientinfo.prefix = lconnSetupPrefix;
- clientinfo.setup = (xConnSetup *)lConnectionInfo;
- CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
- }
- return (client->noClientException);
-}
-
-int
-ProcEstablishConnection(ClientPtr client)
-{
- char *reason, *auth_proto, *auth_string;
- xConnClientPrefix *prefix;
- REQUEST(xReq);
-
- prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq);
- auth_proto = (char *)prefix + sz_xConnClientPrefix;
- auth_string = auth_proto + pad_to_int32(prefix->nbytesAuthProto);
- if ((prefix->majorVersion != X_PROTOCOL) ||
- (prefix->minorVersion != X_PROTOCOL_REVISION))
- reason = "Protocol version mismatch";
- else
- reason = ClientAuthorized(client,
- (unsigned short)prefix->nbytesAuthProto,
- auth_proto,
- (unsigned short)prefix->nbytesAuthString,
- auth_string);
- /*
- * If Kerberos is being used for this client, the clientState
- * will be set to ClientStateAuthenticating at this point.
- * More messages need to be exchanged among the X server, Kerberos
- * server, and client to figure out if everyone is authorized.
- * So we don't want to send the connection setup info yet, since
- * the auth step isn't really done.
- */
- if (client->clientState == ClientStateCheckingSecurity)
- client->clientState = ClientStateCheckedSecurity;
- else if (client->clientState != ClientStateAuthenticating)
- return(SendConnSetup(client, reason));
- return(client->noClientException);
-}
-
-void
-SendErrorToClient(ClientPtr client, unsigned majorCode, unsigned minorCode,
- XID resId, int errorCode)
-{
- xError rep;
-
- memset(&rep, 0, sizeof(xError));
- rep.type = X_Error;
- rep.sequenceNumber = client->sequence;
- rep.errorCode = errorCode;
- rep.majorCode = majorCode;
- rep.minorCode = minorCode;
- rep.resourceID = resId;
-
- WriteEventsToClient (client, 1, (xEvent *)&rep);
-}
-
-void
-MarkClientException(ClientPtr client)
-{
- client->noClientException = -1;
-}
-
-/*
- * This array encodes the answer to the question "what is the log base 2
- * of the number of pixels that fit in a scanline pad unit?"
- * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
- */
-static int answer[6][4] = {
- /* pad pad pad pad*/
- /* 8 16 32 64 */
-
- { 3, 4, 5 , 6 }, /* 1 bit per pixel */
- { 1, 2, 3 , 4 }, /* 4 bits per pixel */
- { 0, 1, 2 , 3 }, /* 8 bits per pixel */
- { ~0, 0, 1 , 2 }, /* 16 bits per pixel */
- { ~0, ~0, 0 , 1 }, /* 24 bits per pixel */
- { ~0, ~0, 0 , 1 } /* 32 bits per pixel */
-};
-
-/*
- * This array gives the answer to the question "what is the first index for
- * the answer array above given the number of bits per pixel?"
- * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
- */
-static int indexForBitsPerPixel[ 33 ] = {
- ~0, 0, ~0, ~0, /* 1 bit per pixel */
- 1, ~0, ~0, ~0, /* 4 bits per pixel */
- 2, ~0, ~0, ~0, /* 8 bits per pixel */
- ~0,~0, ~0, ~0,
- 3, ~0, ~0, ~0, /* 16 bits per pixel */
- ~0,~0, ~0, ~0,
- 4, ~0, ~0, ~0, /* 24 bits per pixel */
- ~0,~0, ~0, ~0,
- 5 /* 32 bits per pixel */
-};
-
-/*
- * This array gives the bytesperPixel value for cases where the number
- * of bits per pixel is a multiple of 8 but not a power of 2.
- */
-static int answerBytesPerPixel[ 33 ] = {
- ~0, 0, ~0, ~0, /* 1 bit per pixel */
- 0, ~0, ~0, ~0, /* 4 bits per pixel */
- 0, ~0, ~0, ~0, /* 8 bits per pixel */
- ~0,~0, ~0, ~0,
- 0, ~0, ~0, ~0, /* 16 bits per pixel */
- ~0,~0, ~0, ~0,
- 3, ~0, ~0, ~0, /* 24 bits per pixel */
- ~0,~0, ~0, ~0,
- 0 /* 32 bits per pixel */
-};
-
-/*
- * This array gives the answer to the question "what is the second index for
- * the answer array above given the number of bits per scanline pad unit?"
- * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
- */
-static int indexForScanlinePad[ 65 ] = {
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- 0, ~0, ~0, ~0, /* 8 bits per scanline pad unit */
- ~0, ~0, ~0, ~0,
- 1, ~0, ~0, ~0, /* 16 bits per scanline pad unit */
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- 2, ~0, ~0, ~0, /* 32 bits per scanline pad unit */
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- ~0, ~0, ~0, ~0,
- 3 /* 64 bits per scanline pad unit */
-};
-
-/*
- grow the array of screenRecs if necessary.
- call the device-supplied initialization procedure
-with its screen number, a pointer to its ScreenRec, argc, and argv.
- return the number of successfully installed screens.
-
-*/
-
-int
-AddScreen(
- Bool (* pfnInit)(
- int /*index*/,
- ScreenPtr /*pScreen*/,
- int /*argc*/,
- char ** /*argv*/
- ),
- int argc,
- char **argv)
-{
-
- int i;
- int scanlinepad, format, depth, bitsPerPixel, j, k;
- ScreenPtr pScreen;
-
- i = screenInfo.numScreens;
- if (i == MAXSCREENS)
- return -1;
-
- pScreen = (ScreenPtr) xcalloc(1, sizeof(ScreenRec));
- if (!pScreen)
- return -1;
-
- pScreen->devPrivates = NULL;
- pScreen->myNum = i;
- pScreen->totalPixmapSize = BitmapBytePad(sizeof(PixmapRec)*8);
- pScreen->ClipNotify = 0; /* for R4 ddx compatibility */
- pScreen->CreateScreenResources = 0;
-
- /*
- * This loop gets run once for every Screen that gets added,
- * but thats ok. If the ddx layer initializes the formats
- * one at a time calling AddScreen() after each, then each
- * iteration will make it a little more accurate. Worst case
- * we do this loop N * numPixmapFormats where N is # of screens.
- * Anyway, this must be called after InitOutput and before the
- * screen init routine is called.
- */
- for (format=0; format<screenInfo.numPixmapFormats; format++)
- {
- depth = screenInfo.formats[format].depth;
- bitsPerPixel = screenInfo.formats[format].bitsPerPixel;
- scanlinepad = screenInfo.formats[format].scanlinePad;
- j = indexForBitsPerPixel[ bitsPerPixel ];
- k = indexForScanlinePad[ scanlinepad ];
- PixmapWidthPaddingInfo[ depth ].padPixelsLog2 = answer[j][k];
- PixmapWidthPaddingInfo[ depth ].padRoundUp =
- (scanlinepad/bitsPerPixel) - 1;
- j = indexForBitsPerPixel[ 8 ]; /* bits per byte */
- PixmapWidthPaddingInfo[ depth ].padBytesLog2 = answer[j][k];
- PixmapWidthPaddingInfo[ depth ].bitsPerPixel = bitsPerPixel;
- if (answerBytesPerPixel[bitsPerPixel])
- {
- PixmapWidthPaddingInfo[ depth ].notPower2 = 1;
- PixmapWidthPaddingInfo[ depth ].bytesPerPixel =
- answerBytesPerPixel[bitsPerPixel];
- }
- else
- {
- PixmapWidthPaddingInfo[ depth ].notPower2 = 0;
- }
- }
-
- /* This is where screen specific stuff gets initialized. Load the
- screen structure, call the hardware, whatever.
- This is also where the default colormap should be allocated and
- also pixel values for blackPixel, whitePixel, and the cursor
- Note that InitScreen is NOT allowed to modify argc, argv, or
- any of the strings pointed to by argv. They may be passed to
- multiple screens.
- */
- pScreen->rgf = ~0L; /* there are no scratch GCs yet*/
- WindowTable[i] = NullWindow;
- screenInfo.screens[i] = pScreen;
- screenInfo.numScreens++;
- if (!(*pfnInit)(i, pScreen, argc, argv))
- {
- dixFreePrivates(pScreen->devPrivates);
- xfree(pScreen);
- screenInfo.numScreens--;
- return -1;
- }
- return i;
-}
+/************************************************************
+
+Copyright 1987, 1989, 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.
+
+
+Copyright 1987, 1989 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+********************************************************/
+
+/* The panoramix components contained the following notice */
+/*****************************************************************
+
+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+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
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+
+******************************************************************/
+
+/* XSERVER_DTRACE additions:
+ * Copyright 2005-2006 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#include <version-config.h>
+#endif
+
+#ifdef CreateWindow
+#undef CreateWindow
+#endif
+
+#ifdef PANORAMIX_DEBUG
+#include <stdio.h>
+int ProcInitialConnection();
+#endif
+
+#include "windowstr.h"
+#include <X11/fonts/fontstruct.h>
+#include "dixfontstr.h"
+#include "gcstruct.h"
+#include "selection.h"
+#include "colormapst.h"
+#include "cursorstr.h"
+#include "scrnintstr.h"
+#include "opaque.h"
+#include "input.h"
+#include "servermd.h"
+#include "extnsionst.h"
+#include "dixfont.h"
+#include "dispatch.h"
+#include "swaprep.h"
+#include "swapreq.h"
+#include "privates.h"
+#include "xace.h"
+#include "inputstr.h"
+#include "xkbsrv.h"
+#include "site.h"
+
+#ifdef XSERVER_DTRACE
+#include "registry.h"
+#include <sys/types.h>
+typedef const char *string;
+#include "Xserver-dtrace.h"
+#endif
+
+#define mskcnt ((MAXCLIENTS + 31) / 32)
+#define BITMASK(i) (1U << ((i) & 31))
+#define MASKIDX(i) ((i) >> 5)
+#define MASKWORD(buf, i) buf[MASKIDX(i)]
+#define BITSET(buf, i) MASKWORD(buf, i) |= BITMASK(i)
+#define BITCLEAR(buf, i) MASKWORD(buf, i) &= ~BITMASK(i)
+#define GETBIT(buf, i) (MASKWORD(buf, i) & BITMASK(i))
+
+xConnSetupPrefix connSetupPrefix;
+
+PaddingInfo PixmapWidthPaddingInfo[33];
+
+static ClientPtr grabClient;
+#define GrabNone 0
+#define GrabActive 1
+#define GrabKickout 2
+static int grabState = GrabNone;
+static long grabWaiters[mskcnt];
+CallbackListPtr ServerGrabCallback = NULL;
+HWEventQueuePtr checkForInput[2];
+int connBlockScreenStart;
+
+static void KillAllClients(void);
+
+static int nextFreeClientID; /* always MIN free client ID */
+
+static int nClients; /* number of authorized clients */
+
+CallbackListPtr ClientStateCallback;
+
+/* dispatchException & isItTimeToYield must be declared volatile since they
+ * are modified by signal handlers - otherwise optimizer may assume it doesn't
+ * need to actually check value in memory when used and may miss changes from
+ * signal handlers.
+ */
+volatile char dispatchException = 0;
+volatile char isItTimeToYield;
+
+/* Various of the DIX function interfaces were not designed to allow
+ * the client->errorValue to be set on BadValue and other errors.
+ * Rather than changing interfaces and breaking untold code we introduce
+ * a new global that dispatch can use.
+ */
+XID clientErrorValue; /* XXX this is a kludge */
+
+#define SAME_SCREENS(a, b) (\
+ (a.pScreen == b.pScreen))
+
+void
+SetInputCheck(HWEventQueuePtr c0, HWEventQueuePtr c1)
+{
+ checkForInput[0] = c0;
+ checkForInput[1] = c1;
+}
+
+void
+UpdateCurrentTime(void)
+{
+ TimeStamp systime;
+
+ /* To avoid time running backwards, we must call GetTimeInMillis before
+ * calling ProcessInputEvents.
+ */
+ systime.months = currentTime.months;
+ systime.milliseconds = GetTimeInMillis();
+ if (systime.milliseconds < currentTime.milliseconds)
+ systime.months++;
+ if (*checkForInput[0] != *checkForInput[1])
+ ProcessInputEvents();
+ if (CompareTimeStamps(systime, currentTime) == LATER)
+ currentTime = systime;
+}
+
+/* Like UpdateCurrentTime, but can't call ProcessInputEvents */
+void
+UpdateCurrentTimeIf(void)
+{
+ TimeStamp systime;
+
+ systime.months = currentTime.months;
+ systime.milliseconds = GetTimeInMillis();
+ if (systime.milliseconds < currentTime.milliseconds)
+ systime.months++;
+ if (*checkForInput[0] == *checkForInput[1])
+ currentTime = systime;
+}
+
+
+#undef SMART_DEBUG
+
+#define SMART_SCHEDULE_DEFAULT_INTERVAL 20 /* ms */
+#define SMART_SCHEDULE_MAX_SLICE 200 /* ms */
+
+Bool SmartScheduleDisable = FALSE;
+long SmartScheduleSlice = SMART_SCHEDULE_DEFAULT_INTERVAL;
+long SmartScheduleInterval = SMART_SCHEDULE_DEFAULT_INTERVAL;
+long SmartScheduleMaxSlice = SMART_SCHEDULE_MAX_SLICE;
+long SmartScheduleTime;
+int SmartScheduleLatencyLimited = 0;
+static ClientPtr SmartLastClient;
+static int SmartLastIndex[SMART_MAX_PRIORITY-SMART_MIN_PRIORITY+1];
+
+#ifdef SMART_DEBUG
+long SmartLastPrint;
+#endif
+
+void Dispatch(void);
+void InitProcVectors(void);
+
+static int
+SmartScheduleClient (int *clientReady, int nready)
+{
+ ClientPtr pClient;
+ int i;
+ int client;
+ int bestPrio, best = 0;
+ int bestRobin, robin;
+ long now = SmartScheduleTime;
+ long idle;
+
+ bestPrio = -0x7fffffff;
+ bestRobin = 0;
+ idle = 2 * SmartScheduleSlice;
+ for (i = 0; i < nready; i++)
+ {
+ client = clientReady[i];
+ pClient = clients[client];
+ /* Praise clients which are idle */
+ if ((now - pClient->smart_check_tick) >= idle)
+ {
+ if (pClient->smart_priority < 0)
+ pClient->smart_priority++;
+ }
+ pClient->smart_check_tick = now;
+
+ /* check priority to select best client */
+ robin = (pClient->index - SmartLastIndex[pClient->smart_priority-SMART_MIN_PRIORITY]) & 0xff;
+ if (pClient->smart_priority > bestPrio ||
+ (pClient->smart_priority == bestPrio && robin > bestRobin))
+ {
+ bestPrio = pClient->smart_priority;
+ bestRobin = robin;
+ best = client;
+ }
+#ifdef SMART_DEBUG
+ if ((now - SmartLastPrint) >= 5000)
+ fprintf (stderr, " %2d: %3d", client, pClient->smart_priority);
+#endif
+ }
+#ifdef SMART_DEBUG
+ if ((now - SmartLastPrint) >= 5000)
+ {
+ fprintf (stderr, " use %2d\n", best);
+ SmartLastPrint = now;
+ }
+#endif
+ pClient = clients[best];
+ SmartLastIndex[bestPrio-SMART_MIN_PRIORITY] = pClient->index;
+ /*
+ * Set current client pointer
+ */
+ if (SmartLastClient != pClient)
+ {
+ pClient->smart_start_tick = now;
+ SmartLastClient = pClient;
+ }
+ /*
+ * Adjust slice
+ */
+ if (nready == 1 && SmartScheduleLatencyLimited == 0)
+ {
+ /*
+ * If it's been a long time since another client
+ * has run, bump the slice up to get maximal
+ * performance from a single client
+ */
+ if ((now - pClient->smart_start_tick) > 1000 &&
+ SmartScheduleSlice < SmartScheduleMaxSlice)
+ {
+ SmartScheduleSlice += SmartScheduleInterval;
+ }
+ }
+ else
+ {
+ SmartScheduleSlice = SmartScheduleInterval;
+ }
+ return best;
+}
+
+void
+EnableLimitedSchedulingLatency(void)
+{
+ ++SmartScheduleLatencyLimited;
+ SmartScheduleSlice = SmartScheduleInterval;
+}
+
+void
+DisableLimitedSchedulingLatency(void)
+{
+ --SmartScheduleLatencyLimited;
+
+ /* protect against bugs */
+ if (SmartScheduleLatencyLimited < 0)
+ SmartScheduleLatencyLimited = 0;
+}
+
+#define MAJOROP ((xReq *)client->requestBuffer)->reqType
+
+void
+Dispatch(void)
+{
+ int *clientReady; /* array of request ready clients */
+ int result;
+ ClientPtr client;
+ int nready;
+ HWEventQueuePtr* icheck = checkForInput;
+ long start_tick;
+
+ nextFreeClientID = 1;
+ nClients = 0;
+
+ clientReady = xalloc(sizeof(int) * MaxClients);
+ if (!clientReady)
+ return;
+
+ SmartScheduleSlice = SmartScheduleInterval;
+ while (!dispatchException)
+ {
+ if (*icheck[0] != *icheck[1])
+ {
+ ProcessInputEvents();
+ FlushIfCriticalOutputPending();
+ }
+
+ nready = WaitForSomething(clientReady);
+
+ if (nready && !SmartScheduleDisable)
+ {
+ clientReady[0] = SmartScheduleClient (clientReady, nready);
+ nready = 1;
+ }
+ /*****************
+ * Handle events in round robin fashion, doing input between
+ * each round
+ *****************/
+
+ while (!dispatchException && (--nready >= 0))
+ {
+ client = clients[clientReady[nready]];
+ if (! client)
+ {
+ /* KillClient can cause this to happen */
+ continue;
+ }
+ /* GrabServer activation can cause this to be true */
+ if (grabState == GrabKickout)
+ {
+ grabState = GrabActive;
+ break;
+ }
+ isItTimeToYield = FALSE;
+
+ start_tick = SmartScheduleTime;
+ while (!isItTimeToYield)
+ {
+#ifdef XSERVER_DTRACE
+ CARD8 StartMajorOp;
+#endif
+ if (*icheck[0] != *icheck[1])
+ ProcessInputEvents();
+
+ FlushIfCriticalOutputPending();
+ if (!SmartScheduleDisable &&
+ (SmartScheduleTime - start_tick) >= SmartScheduleSlice)
+ {
+ /* Penalize clients which consume ticks */
+ if (client->smart_priority > SMART_MIN_PRIORITY)
+ client->smart_priority--;
+ break;
+ }
+ /* now, finally, deal with client requests */
+
+ result = ReadRequestFromClient(client);
+ if (result <= 0)
+ {
+ if (result < 0)
+ CloseDownClient(client);
+ break;
+ }
+
+ client->sequence++;
+#ifdef XSERVER_DTRACE
+ StartMajorOp=MAJOROP;
+ XSERVER_REQUEST_START(LookupMajorName(StartMajorOp), StartMajorOp,
+ ((xReq *)client->requestBuffer)->length,
+ client->index, client->requestBuffer);
+#endif
+ if (result > (maxBigRequestSize << 2))
+ result = BadLength;
+ else {
+ result = XaceHookDispatch(client, MAJOROP);
+ if (result == Success)
+ result = (* client->requestVector[MAJOROP])(client);
+ XaceHookAuditEnd(client, result);
+ }
+#ifdef XSERVER_DTRACE
+ if (result!=Success)
+ {
+ char Message[255];
+ sprintf(Message,"ERROR: %s (0x%x)",LookupMajorName(StartMajorOp),client->errorValue);
+ XSERVER_REQUEST_DONE(Message, MAJOROP,
+ client->sequence, client->index, result);
+ }
+ else
+ {
+ if (StartMajorOp!=MAJOROP)
+ {
+ char Message[255];
+ sprintf(Message,"Changed request: %s -> %s",LookupMajorName(StartMajorOp),LookupMajorName(MAJOROP));
+ XSERVER_REQUEST_DONE(Message, MAJOROP,
+ client->sequence, client->index, result);
+ }
+ else
+ {
+ XSERVER_REQUEST_DONE(LookupMajorName(MAJOROP), MAJOROP,
+ client->sequence, client->index, result);
+ }
+ }
+#endif
+
+ if (result != Success)
+ {
+ if (client->noClientException != Success)
+ CloseDownClient(client);
+ else
+ SendErrorToClient(client, MAJOROP,
+ MinorOpcodeOfRequest(client),
+ client->errorValue, result);
+ break;
+ }
+ }
+ FlushAllOutput();
+ client = clients[clientReady[nready]];
+ if (client)
+ client->smart_stop_tick = SmartScheduleTime;
+ }
+ dispatchException &= ~DE_PRIORITYCHANGE;
+ }
+#if defined(DDXBEFORERESET)
+ ddxBeforeReset ();
+#endif
+ KillAllClients();
+ xfree(clientReady);
+ dispatchException &= ~DE_RESET;
+ SmartScheduleLatencyLimited = 0;
+}
+
+#undef MAJOROP
+
+static int VendorRelease = VENDOR_RELEASE;
+static char *VendorString = VENDOR_NAME;
+
+static const int padlength[4] = {0, 3, 2, 1};
+
+void
+SetVendorRelease(int release)
+{
+ VendorRelease = release;
+}
+
+void
+SetVendorString(char *string)
+{
+ VendorString = string;
+}
+
+Bool
+CreateConnectionBlock(void)
+{
+ xConnSetup setup;
+ xWindowRoot root;
+ xDepth depth;
+ xVisualType visual;
+ xPixmapFormat format;
+ unsigned long vid;
+ int i, j, k,
+ lenofblock,
+ sizesofar = 0;
+ char *pBuf;
+
+
+ memset(&setup, 0, sizeof(xConnSetup));
+ /* Leave off the ridBase and ridMask, these must be sent with
+ connection */
+
+ setup.release = VendorRelease;
+ /*
+ * per-server image and bitmap parameters are defined in Xmd.h
+ */
+ setup.imageByteOrder = screenInfo.imageByteOrder;
+
+ setup.bitmapScanlineUnit = screenInfo.bitmapScanlineUnit;
+ setup.bitmapScanlinePad = screenInfo.bitmapScanlinePad;
+
+ setup.bitmapBitOrder = screenInfo.bitmapBitOrder;
+ setup.motionBufferSize = NumMotionEvents();
+ setup.numRoots = screenInfo.numScreens;
+ setup.nbytesVendor = strlen(VendorString);
+ setup.numFormats = screenInfo.numPixmapFormats;
+ setup.maxRequestSize = MAX_REQUEST_SIZE;
+ QueryMinMaxKeyCodes(&setup.minKeyCode, &setup.maxKeyCode);
+
+ lenofblock = sizeof(xConnSetup) +
+ pad_to_int32(setup.nbytesVendor) +
+ (setup.numFormats * sizeof(xPixmapFormat)) +
+ (setup.numRoots * sizeof(xWindowRoot));
+ ConnectionInfo = xalloc(lenofblock);
+ if (!ConnectionInfo)
+ return FALSE;
+
+ memmove(ConnectionInfo, (char *)&setup, sizeof(xConnSetup));
+ sizesofar = sizeof(xConnSetup);
+ pBuf = ConnectionInfo + sizeof(xConnSetup);
+
+ memmove(pBuf, VendorString, (int)setup.nbytesVendor);
+ sizesofar += setup.nbytesVendor;
+ pBuf += setup.nbytesVendor;
+ i = padlength[setup.nbytesVendor & 3];
+ sizesofar += i;
+ while (--i >= 0)
+ *pBuf++ = 0;
+
+ memset(&format, 0, sizeof(xPixmapFormat));
+ for (i=0; i<screenInfo.numPixmapFormats; i++)
+ {
+ format.depth = screenInfo.formats[i].depth;
+ format.bitsPerPixel = screenInfo.formats[i].bitsPerPixel;
+ format.scanLinePad = screenInfo.formats[i].scanlinePad;
+ memmove(pBuf, (char *)&format, sizeof(xPixmapFormat));
+ pBuf += sizeof(xPixmapFormat);
+ sizesofar += sizeof(xPixmapFormat);
+ }
+
+ connBlockScreenStart = sizesofar;
+ memset(&depth, 0, sizeof(xDepth));
+ memset(&visual, 0, sizeof(xVisualType));
+ for (i=0; i<screenInfo.numScreens; i++)
+ {
+ ScreenPtr pScreen;
+ DepthPtr pDepth;
+ VisualPtr pVisual;
+
+ pScreen = screenInfo.screens[i];
+ root.windowId = WindowTable[i]->drawable.id;
+ root.defaultColormap = pScreen->defColormap;
+ root.whitePixel = pScreen->whitePixel;
+ root.blackPixel = pScreen->blackPixel;
+ root.currentInputMask = 0; /* filled in when sent */
+ root.pixWidth = pScreen->width;
+ root.pixHeight = pScreen->height;
+ root.mmWidth = pScreen->mmWidth;
+ root.mmHeight = pScreen->mmHeight;
+ root.minInstalledMaps = pScreen->minInstalledCmaps;
+ root.maxInstalledMaps = pScreen->maxInstalledCmaps;
+ root.rootVisualID = pScreen->rootVisual;
+ root.backingStore = pScreen->backingStoreSupport;
+ root.saveUnders = FALSE;
+ root.rootDepth = pScreen->rootDepth;
+ root.nDepths = pScreen->numDepths;
+ memmove(pBuf, (char *)&root, sizeof(xWindowRoot));
+ sizesofar += sizeof(xWindowRoot);
+ pBuf += sizeof(xWindowRoot);
+
+ pDepth = pScreen->allowedDepths;
+ for(j = 0; j < pScreen->numDepths; j++, pDepth++)
+ {
+ lenofblock += sizeof(xDepth) +
+ (pDepth->numVids * sizeof(xVisualType));
+ pBuf = (char *)xrealloc(ConnectionInfo, lenofblock);
+ if (!pBuf)
+ {
+ xfree(ConnectionInfo);
+ return FALSE;
+ }
+ ConnectionInfo = pBuf;
+ pBuf += sizesofar;
+ depth.depth = pDepth->depth;
+ depth.nVisuals = pDepth->numVids;
+ memmove(pBuf, (char *)&depth, sizeof(xDepth));
+ pBuf += sizeof(xDepth);
+ sizesofar += sizeof(xDepth);
+ for(k = 0; k < pDepth->numVids; k++)
+ {
+ vid = pDepth->vids[k];
+ for (pVisual = pScreen->visuals;
+ pVisual->vid != vid;
+ pVisual++)
+ ;
+ visual.visualID = vid;
+ visual.class = pVisual->class;
+ visual.bitsPerRGB = pVisual->bitsPerRGBValue;
+ visual.colormapEntries = pVisual->ColormapEntries;
+ visual.redMask = pVisual->redMask;
+ visual.greenMask = pVisual->greenMask;
+ visual.blueMask = pVisual->blueMask;
+ memmove(pBuf, (char *)&visual, sizeof(xVisualType));
+ pBuf += sizeof(xVisualType);
+ sizesofar += sizeof(xVisualType);
+ }
+ }
+ }
+ connSetupPrefix.success = xTrue;
+ connSetupPrefix.length = lenofblock/4;
+ connSetupPrefix.majorVersion = X_PROTOCOL;
+ connSetupPrefix.minorVersion = X_PROTOCOL_REVISION;
+ return TRUE;
+}
+
+
+int
+ProcBadRequest(ClientPtr client)
+{
+ return (BadRequest);
+}
+
+int
+ProcCreateWindow(ClientPtr client)
+{
+ WindowPtr pParent, pWin;
+ REQUEST(xCreateWindowReq);
+ int len, rc;
+
+ REQUEST_AT_LEAST_SIZE(xCreateWindowReq);
+
+ LEGAL_NEW_RESOURCE(stuff->wid, client);
+ rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess);
+ if (rc != Success)
+ return rc;
+ len = client->req_len - bytes_to_int32(sizeof(xCreateWindowReq));
+ if (Ones(stuff->mask) != len)
+ return BadLength;
+ if (!stuff->width || !stuff->height)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ pWin = CreateWindow(stuff->wid, pParent, stuff->x,
+ stuff->y, stuff->width, stuff->height,
+ stuff->borderWidth, stuff->class,
+ stuff->mask, (XID *) &stuff[1],
+ (int)stuff->depth,
+ client, stuff->visual, &rc);
+ if (pWin)
+ {
+ Mask mask = pWin->eventMask;
+
+ pWin->eventMask = 0; /* subterfuge in case AddResource fails */
+ if (!AddResource(stuff->wid, RT_WINDOW, (pointer)pWin))
+ return BadAlloc;
+ pWin->eventMask = mask;
+ }
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+}
+
+int
+ProcChangeWindowAttributes(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xChangeWindowAttributesReq);
+ int result, len, rc;
+ Mask access_mode = 0;
+
+ REQUEST_AT_LEAST_SIZE(xChangeWindowAttributesReq);
+ access_mode |= (stuff->valueMask & CWEventMask) ? DixReceiveAccess : 0;
+ access_mode |= (stuff->valueMask & ~CWEventMask) ? DixSetAttrAccess : 0;
+ rc = dixLookupWindow(&pWin, stuff->window, client, access_mode);
+ if (rc != Success)
+ return rc;
+ len = client->req_len - bytes_to_int32(sizeof(xChangeWindowAttributesReq));
+ if (len != Ones(stuff->valueMask))
+ return BadLength;
+ result = ChangeWindowAttributes(pWin,
+ stuff->valueMask,
+ (XID *) &stuff[1],
+ client);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+}
+
+int
+ProcGetWindowAttributes(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ xGetWindowAttributesReply wa;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ memset(&wa, 0, sizeof(xGetWindowAttributesReply));
+ GetWindowAttributes(pWin, client, &wa);
+ WriteReplyToClient(client, sizeof(xGetWindowAttributesReply), &wa);
+ return(client->noClientException);
+}
+
+int
+ProcDestroyWindow(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixDestroyAccess);
+ if (rc != Success)
+ return rc;
+ if (pWin->parent) {
+ rc = dixLookupWindow(&pWin, pWin->parent->drawable.id, client,
+ DixRemoveAccess);
+ if (rc != Success)
+ return rc;
+ FreeResource(stuff->id, RT_NONE);
+ }
+ return(client->noClientException);
+}
+
+int
+ProcDestroySubwindows(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixRemoveAccess);
+ if (rc != Success)
+ return rc;
+ DestroySubwindows(pWin, client);
+ return(client->noClientException);
+}
+
+int
+ProcChangeSaveSet(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xChangeSaveSetReq);
+ int result, rc;
+
+ REQUEST_SIZE_MATCH(xChangeSaveSetReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
+ if (rc != Success)
+ return rc;
+ if (client->clientAsMask == (CLIENT_BITS(pWin->drawable.id)))
+ return BadMatch;
+ if ((stuff->mode == SetModeInsert) || (stuff->mode == SetModeDelete))
+ {
+ result = AlterSaveSetForClient(client, pWin, stuff->mode, FALSE, TRUE);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+ }
+ else
+ {
+ client->errorValue = stuff->mode;
+ return( BadValue );
+ }
+}
+
+int
+ProcReparentWindow(ClientPtr client)
+{
+ WindowPtr pWin, pParent;
+ REQUEST(xReparentWindowReq);
+ int result, rc;
+
+ REQUEST_SIZE_MATCH(xReparentWindowReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
+ if (rc != Success)
+ return rc;
+ rc = dixLookupWindow(&pParent, stuff->parent, client, DixAddAccess);
+ if (rc != Success)
+ return rc;
+ if (SAME_SCREENS(pWin->drawable, pParent->drawable))
+ {
+ if ((pWin->backgroundState == ParentRelative) &&
+ (pParent->drawable.depth != pWin->drawable.depth))
+ return BadMatch;
+ if ((pWin->drawable.class != InputOnly) &&
+ (pParent->drawable.class == InputOnly))
+ return BadMatch;
+ result = ReparentWindow(pWin, pParent,
+ (short)stuff->x, (short)stuff->y, client);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+ }
+ else
+ return (BadMatch);
+}
+
+int
+ProcMapWindow(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixShowAccess);
+ if (rc != Success)
+ return rc;
+ MapWindow(pWin, client);
+ /* update cache to say it is mapped */
+ return(client->noClientException);
+}
+
+int
+ProcMapSubwindows(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
+ if (rc != Success)
+ return rc;
+ MapSubwindows(pWin, client);
+ /* update cache to say it is mapped */
+ return(client->noClientException);
+}
+
+int
+ProcUnmapWindow(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixHideAccess);
+ if (rc != Success)
+ return rc;
+ UnmapWindow(pWin, FALSE);
+ /* update cache to say it is mapped */
+ return(client->noClientException);
+}
+
+int
+ProcUnmapSubwindows(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
+ if (rc != Success)
+ return rc;
+ UnmapSubwindows(pWin);
+ return(client->noClientException);
+}
+
+int
+ProcConfigureWindow(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xConfigureWindowReq);
+ int result;
+ int len, rc;
+
+ REQUEST_AT_LEAST_SIZE(xConfigureWindowReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client,
+ DixManageAccess|DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ len = client->req_len - bytes_to_int32(sizeof(xConfigureWindowReq));
+ if (Ones((Mask)stuff->mask) != len)
+ return BadLength;
+ result = ConfigureWindow(pWin, (Mask)stuff->mask, (XID *) &stuff[1],
+ client);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+}
+
+int
+ProcCirculateWindow(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xCirculateWindowReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xCirculateWindowReq);
+ if ((stuff->direction != RaiseLowest) &&
+ (stuff->direction != LowerHighest))
+ {
+ client->errorValue = stuff->direction;
+ return BadValue;
+ }
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixManageAccess);
+ if (rc != Success)
+ return rc;
+ CirculateWindow(pWin, (int)stuff->direction, client);
+ return(client->noClientException);
+}
+
+static int
+GetGeometry(ClientPtr client, xGetGeometryReply *rep)
+{
+ DrawablePtr pDraw;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupDrawable(&pDraw, stuff->id, client, M_ANY, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ rep->type = X_Reply;
+ rep->length = 0;
+ rep->sequenceNumber = client->sequence;
+ rep->root = WindowTable[pDraw->pScreen->myNum]->drawable.id;
+ rep->depth = pDraw->depth;
+ rep->width = pDraw->width;
+ rep->height = pDraw->height;
+
+ /* XXX - Because the pixmap-implementation of the multibuffer extension
+ * may have the buffer-id's drawable resource value be a pointer
+ * to the buffer's window instead of the buffer itself
+ * (this happens if the buffer is the displayed buffer),
+ * we also have to check that the id matches before we can
+ * truly say that it is a DRAWABLE_WINDOW.
+ */
+
+ if ((pDraw->type == UNDRAWABLE_WINDOW) ||
+ ((pDraw->type == DRAWABLE_WINDOW) && (stuff->id == pDraw->id)))
+ {
+ WindowPtr pWin = (WindowPtr)pDraw;
+ rep->x = pWin->origin.x - wBorderWidth (pWin);
+ rep->y = pWin->origin.y - wBorderWidth (pWin);
+ rep->borderWidth = pWin->borderWidth;
+ }
+ else /* DRAWABLE_PIXMAP or DRAWABLE_BUFFER */
+ {
+ rep->x = rep->y = rep->borderWidth = 0;
+ }
+
+ return Success;
+}
+
+
+int
+ProcGetGeometry(ClientPtr client)
+{
+ xGetGeometryReply rep;
+ int status;
+
+ memset(&rep, 0, sizeof(xGetGeometryReply));
+ if ((status = GetGeometry(client, &rep)) != Success)
+ return status;
+
+ WriteReplyToClient(client, sizeof(xGetGeometryReply), &rep);
+ return(client->noClientException);
+}
+
+#ifdef WIN32
+/* Do not return the clipboard window in ProcQueryTree, cause this may cause
+ the clipboard client being closed when connecting through xdmcp.
+*/
+extern int g_iClipboardWindow;
+
+#endif
+
+int
+ProcQueryTree(ClientPtr client)
+{
+ xQueryTreeReply reply;
+ int rc, numChildren = 0;
+ WindowPtr pChild, pWin, pHead;
+ Window *childIDs = (Window *)NULL;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixListAccess);
+ if (rc != Success)
+ return rc;
+ memset(&reply, 0, sizeof(xQueryTreeReply));
+ reply.type = X_Reply;
+ reply.root = WindowTable[pWin->drawable.pScreen->myNum]->drawable.id;
+ reply.sequenceNumber = client->sequence;
+ if (pWin->parent)
+ reply.parent = pWin->parent->drawable.id;
+ else
+ reply.parent = (Window)None;
+ pHead = RealChildHead(pWin);
+ for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)
+#ifdef WIN32
+ if (pChild->drawable.id!=g_iClipboardWindow)
+#endif
+ numChildren++;
+ if (numChildren)
+ {
+ int curChild = 0;
+
+ childIDs = xalloc(numChildren * sizeof(Window));
+ if (!childIDs)
+ return BadAlloc;
+ for (pChild = pWin->lastChild; pChild != pHead; pChild = pChild->prevSib)
+#ifdef WIN32
+ if (pChild->drawable.id!=g_iClipboardWindow)
+#endif
+ childIDs[curChild++] = pChild->drawable.id;
+ }
+
+ reply.nChildren = numChildren;
+ reply.length = bytes_to_int32(numChildren * sizeof(Window));
+
+ WriteReplyToClient(client, sizeof(xQueryTreeReply), &reply);
+ if (numChildren)
+ {
+ client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+ WriteSwappedDataToClient(client, numChildren * sizeof(Window), childIDs);
+ xfree(childIDs);
+ }
+
+ return(client->noClientException);
+}
+
+int
+ProcInternAtom(ClientPtr client)
+{
+ Atom atom;
+ char *tchar;
+ REQUEST(xInternAtomReq);
+
+ REQUEST_FIXED_SIZE(xInternAtomReq, stuff->nbytes);
+ if ((stuff->onlyIfExists != xTrue) && (stuff->onlyIfExists != xFalse))
+ {
+ client->errorValue = stuff->onlyIfExists;
+ return(BadValue);
+ }
+ tchar = (char *) &stuff[1];
+ atom = MakeAtom(tchar, stuff->nbytes, !stuff->onlyIfExists);
+ if (atom != BAD_RESOURCE)
+ {
+ xInternAtomReply reply;
+ memset(&reply, 0, sizeof(xInternAtomReply));
+ reply.type = X_Reply;
+ reply.length = 0;
+ reply.sequenceNumber = client->sequence;
+ reply.atom = atom;
+ WriteReplyToClient(client, sizeof(xInternAtomReply), &reply);
+ return(client->noClientException);
+ }
+ else
+ return (BadAlloc);
+}
+
+int
+ProcGetAtomName(ClientPtr client)
+{
+ const char *str;
+ xGetAtomNameReply reply;
+ int len;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ if ( (str = NameForAtom(stuff->id)) )
+ {
+ len = strlen(str);
+ memset(&reply, 0, sizeof(xGetAtomNameReply));
+ reply.type = X_Reply;
+ reply.length = bytes_to_int32(len);
+ reply.sequenceNumber = client->sequence;
+ reply.nameLength = len;
+ WriteReplyToClient(client, sizeof(xGetAtomNameReply), &reply);
+ (void)WriteToClient(client, len, str);
+ return(client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->id;
+ return (BadAtom);
+ }
+}
+
+int
+ProcGrabServer(ClientPtr client)
+{
+ int rc;
+ REQUEST_SIZE_MATCH(xReq);
+ if (grabState != GrabNone && client != grabClient)
+ {
+ ResetCurrentRequest(client);
+ client->sequence--;
+ BITSET(grabWaiters, client->index);
+ IgnoreClient(client);
+ return(client->noClientException);
+ }
+ rc = OnlyListenToOneClient(client);
+ if (rc != Success)
+ return rc;
+ grabState = GrabKickout;
+ grabClient = client;
+
+ if (ServerGrabCallback)
+ {
+ ServerGrabInfoRec grabinfo;
+ grabinfo.client = client;
+ grabinfo.grabstate = SERVER_GRABBED;
+ CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo);
+ }
+
+ return(client->noClientException);
+}
+
+static void
+UngrabServer(ClientPtr client)
+{
+ int i;
+
+ grabState = GrabNone;
+ ListenToAllClients();
+ for (i = mskcnt; --i >= 0 && !grabWaiters[i]; )
+ ;
+ if (i >= 0)
+ {
+ i <<= 5;
+ while (!GETBIT(grabWaiters, i))
+ i++;
+ BITCLEAR(grabWaiters, i);
+ AttendClient(clients[i]);
+ }
+
+ if (ServerGrabCallback)
+ {
+ ServerGrabInfoRec grabinfo;
+ grabinfo.client = client;
+ grabinfo.grabstate = SERVER_UNGRABBED;
+ CallCallbacks(&ServerGrabCallback, (pointer)&grabinfo);
+ }
+}
+
+int
+ProcUngrabServer(ClientPtr client)
+{
+ REQUEST_SIZE_MATCH(xReq);
+ UngrabServer(client);
+ return(client->noClientException);
+}
+
+int
+ProcTranslateCoords(ClientPtr client)
+{
+ REQUEST(xTranslateCoordsReq);
+
+ WindowPtr pWin, pDst;
+ xTranslateCoordsReply rep;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xTranslateCoordsReq);
+ rc = dixLookupWindow(&pWin, stuff->srcWid, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ rc = dixLookupWindow(&pDst, stuff->dstWid, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ memset(&rep, 0, sizeof(xTranslateCoordsReply));
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ if (!SAME_SCREENS(pWin->drawable, pDst->drawable))
+ {
+ rep.sameScreen = xFalse;
+ rep.child = None;
+ rep.dstX = rep.dstY = 0;
+ }
+ else
+ {
+ INT16 x, y;
+ rep.sameScreen = xTrue;
+ rep.child = None;
+ /* computing absolute coordinates -- adjust to destination later */
+ x = pWin->drawable.x + stuff->srcX;
+ y = pWin->drawable.y + stuff->srcY;
+ pWin = pDst->firstChild;
+ while (pWin)
+ {
+ BoxRec box;
+ if ((pWin->mapped) &&
+ (x >= pWin->drawable.x - wBorderWidth (pWin)) &&
+ (x < pWin->drawable.x + (int)pWin->drawable.width +
+ wBorderWidth (pWin)) &&
+ (y >= pWin->drawable.y - wBorderWidth (pWin)) &&
+ (y < pWin->drawable.y + (int)pWin->drawable.height +
+ wBorderWidth (pWin))
+ /* When a window is shaped, a further check
+ * is made to see if the point is inside
+ * borderSize
+ */
+ && (!wBoundingShape(pWin) ||
+ POINT_IN_REGION(pWin->drawable.pScreen,
+ &pWin->borderSize, x, y, &box))
+
+ && (!wInputShape(pWin) ||
+ POINT_IN_REGION(pWin->drawable.pScreen,
+ wInputShape(pWin),
+ x - pWin->drawable.x,
+ y - pWin->drawable.y, &box))
+ )
+ {
+ rep.child = pWin->drawable.id;
+ pWin = (WindowPtr) NULL;
+ }
+ else
+ pWin = pWin->nextSib;
+ }
+ /* adjust to destination coordinates */
+ rep.dstX = x - pDst->drawable.x;
+ rep.dstY = y - pDst->drawable.y;
+ }
+ WriteReplyToClient(client, sizeof(xTranslateCoordsReply), &rep);
+ return(client->noClientException);
+}
+
+int
+ProcOpenFont(ClientPtr client)
+{
+ int err;
+ REQUEST(xOpenFontReq);
+
+ REQUEST_FIXED_SIZE(xOpenFontReq, stuff->nbytes);
+ client->errorValue = stuff->fid;
+ LEGAL_NEW_RESOURCE(stuff->fid, client);
+ err = OpenFont(client, stuff->fid, (Mask) 0,
+ stuff->nbytes, (char *)&stuff[1]);
+ if (err == Success)
+ {
+ return(client->noClientException);
+ }
+ else
+ return err;
+}
+
+int
+ProcCloseFont(ClientPtr client)
+{
+ FontPtr pFont;
+ int rc;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT,
+ client, DixDestroyAccess);
+ if (rc == Success)
+ {
+ FreeResource(stuff->id, RT_NONE);
+ return(client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadFont : rc;
+ }
+}
+
+int
+ProcQueryFont(ClientPtr client)
+{
+ xQueryFontReply *reply;
+ FontPtr pFont;
+ GC *pGC;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ client->errorValue = stuff->id; /* EITHER font or gc */
+ rc = dixLookupResourceByType((pointer *)&pFont, stuff->id, RT_FONT, client,
+ DixGetAttrAccess);
+ if (rc == BadValue) {
+ rc = dixLookupResourceByType((pointer *)&pGC, stuff->id, RT_GC, client,
+ DixGetAttrAccess);
+ if (rc == Success)
+ pFont = pGC->font;
+ }
+ if (rc != Success)
+ return (rc == BadValue) ? BadFont: rc;
+
+ {
+ xCharInfo *pmax = FONTINKMAX(pFont);
+ xCharInfo *pmin = FONTINKMIN(pFont);
+ int nprotoxcistructs;
+ int rlength;
+
+ nprotoxcistructs = (
+ pmax->rightSideBearing == pmin->rightSideBearing &&
+ pmax->leftSideBearing == pmin->leftSideBearing &&
+ pmax->descent == pmin->descent &&
+ pmax->ascent == pmin->ascent &&
+ pmax->characterWidth == pmin->characterWidth) ?
+ 0 : N2dChars(pFont);
+
+ rlength = sizeof(xQueryFontReply) +
+ FONTINFONPROPS(FONTCHARSET(pFont)) * sizeof(xFontProp) +
+ nprotoxcistructs * sizeof(xCharInfo);
+ reply = xcalloc(1, rlength);
+ if(!reply)
+ {
+ return(BadAlloc);
+ }
+
+ reply->type = X_Reply;
+ reply->length = bytes_to_int32(rlength - sizeof(xGenericReply));
+ reply->sequenceNumber = client->sequence;
+ QueryFont( pFont, reply, nprotoxcistructs);
+
+ WriteReplyToClient(client, rlength, reply);
+ xfree(reply);
+ return(client->noClientException);
+ }
+}
+
+int
+ProcQueryTextExtents(ClientPtr client)
+{
+ xQueryTextExtentsReply reply;
+ FontPtr pFont;
+ GC *pGC;
+ ExtentInfoRec info;
+ unsigned long length;
+ int rc;
+ REQUEST(xQueryTextExtentsReq);
+ REQUEST_AT_LEAST_SIZE(xQueryTextExtentsReq);
+
+ client->errorValue = stuff->fid; /* EITHER font or gc */
+ rc = dixLookupResourceByType((pointer *)&pFont, stuff->fid, RT_FONT, client,
+ DixGetAttrAccess);
+ if (rc == BadValue) {
+ rc = dixLookupResourceByType((pointer *)&pGC, stuff->fid, RT_GC, client,
+ DixGetAttrAccess);
+ if (rc == Success)
+ pFont = pGC->font;
+ }
+ if (rc != Success)
+ return (rc == BadValue) ? BadFont: rc;
+
+ length = client->req_len - bytes_to_int32(sizeof(xQueryTextExtentsReq));
+ length = length << 1;
+ if (stuff->oddLength)
+ {
+ if (length == 0)
+ return(BadLength);
+ length--;
+ }
+ if (!QueryTextExtents(pFont, length, (unsigned char *)&stuff[1], &info))
+ return(BadAlloc);
+ reply.type = X_Reply;
+ reply.length = 0;
+ reply.sequenceNumber = client->sequence;
+ reply.drawDirection = info.drawDirection;
+ reply.fontAscent = info.fontAscent;
+ reply.fontDescent = info.fontDescent;
+ reply.overallAscent = info.overallAscent;
+ reply.overallDescent = info.overallDescent;
+ reply.overallWidth = info.overallWidth;
+ reply.overallLeft = info.overallLeft;
+ reply.overallRight = info.overallRight;
+ WriteReplyToClient(client, sizeof(xQueryTextExtentsReply), &reply);
+ return(client->noClientException);
+}
+
+int
+ProcListFonts(ClientPtr client)
+{
+ REQUEST(xListFontsReq);
+
+ REQUEST_FIXED_SIZE(xListFontsReq, stuff->nbytes);
+
+ return ListFonts(client, (unsigned char *) &stuff[1], stuff->nbytes,
+ stuff->maxNames);
+}
+
+int
+ProcListFontsWithInfo(ClientPtr client)
+{
+ REQUEST(xListFontsWithInfoReq);
+
+ REQUEST_FIXED_SIZE(xListFontsWithInfoReq, stuff->nbytes);
+
+ return StartListFontsWithInfo(client, stuff->nbytes,
+ (unsigned char *) &stuff[1], stuff->maxNames);
+}
+
+/**
+ *
+ * \param value must conform to DeleteType
+ */
+int
+dixDestroyPixmap(pointer value, XID pid)
+{
+ PixmapPtr pPixmap = (PixmapPtr)value;
+ return (*pPixmap->drawable.pScreen->DestroyPixmap)(pPixmap);
+}
+
+int
+ProcCreatePixmap(ClientPtr client)
+{
+ PixmapPtr pMap;
+ DrawablePtr pDraw;
+ REQUEST(xCreatePixmapReq);
+ DepthPtr pDepth;
+ int i, rc;
+
+ REQUEST_SIZE_MATCH(xCreatePixmapReq);
+ client->errorValue = stuff->pid;
+ LEGAL_NEW_RESOURCE(stuff->pid, client);
+
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!stuff->width || !stuff->height)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+ if (stuff->width > 32767 || stuff->height > 32767)
+ {
+ /* It is allowed to try and allocate a pixmap which is larger than
+ * 32767 in either dimension. However, all of the framebuffer code
+ * is buggy and does not reliably draw to such big pixmaps, basically
+ * because the Region data structure operates with signed shorts
+ * for the rectangles in it.
+ *
+ * Furthermore, several places in the X server computes the
+ * size in bytes of the pixmap and tries to store it in an
+ * integer. This integer can overflow and cause the allocated size
+ * to be much smaller.
+ *
+ * So, such big pixmaps are rejected here with a BadAlloc
+ */
+ return BadAlloc;
+ }
+ if (stuff->depth != 1)
+ {
+ pDepth = pDraw->pScreen->allowedDepths;
+ for (i=0; i<pDraw->pScreen->numDepths; i++, pDepth++)
+ if (pDepth->depth == stuff->depth)
+ goto CreatePmap;
+ client->errorValue = stuff->depth;
+ return BadValue;
+ }
+CreatePmap:
+ pMap = (PixmapPtr)(*pDraw->pScreen->CreatePixmap)
+ (pDraw->pScreen, stuff->width,
+ stuff->height, stuff->depth, 0);
+ if (pMap)
+ {
+ pMap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pMap->drawable.id = stuff->pid;
+ /* security creation/labeling check */
+ rc = XaceHook(XACE_RESOURCE_ACCESS, client, stuff->pid, RT_PIXMAP,
+ pMap, RT_NONE, NULL, DixCreateAccess);
+ if (rc != Success) {
+ (*pDraw->pScreen->DestroyPixmap)(pMap);
+ return rc;
+ }
+ if (AddResource(stuff->pid, RT_PIXMAP, (pointer)pMap))
+ return(client->noClientException);
+ (*pDraw->pScreen->DestroyPixmap)(pMap);
+ }
+ return (BadAlloc);
+}
+
+int
+ProcFreePixmap(ClientPtr client)
+{
+ PixmapPtr pMap;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupResourceByType((pointer *)&pMap, stuff->id, RT_PIXMAP, client,
+ DixDestroyAccess);
+ if (rc == Success)
+ {
+ FreeResource(stuff->id, RT_NONE);
+ return(client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadPixmap : rc;
+ }
+}
+
+int
+ProcCreateGC(ClientPtr client)
+{
+ int error, rc;
+ GC *pGC;
+ DrawablePtr pDraw;
+ unsigned len;
+ REQUEST(xCreateGCReq);
+
+ REQUEST_AT_LEAST_SIZE(xCreateGCReq);
+ client->errorValue = stuff->gc;
+ LEGAL_NEW_RESOURCE(stuff->gc, client);
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, 0,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ len = client->req_len - bytes_to_int32(sizeof(xCreateGCReq));
+ if (len != Ones(stuff->mask))
+ return BadLength;
+ pGC = (GC *)CreateGC(pDraw, stuff->mask, (XID *) &stuff[1], &error,
+ stuff->gc, client);
+ if (error != Success)
+ return error;
+ if (!AddResource(stuff->gc, RT_GC, (pointer)pGC))
+ return (BadAlloc);
+ return(client->noClientException);
+}
+
+int
+ProcChangeGC(ClientPtr client)
+{
+ GC *pGC;
+ int result;
+ unsigned len;
+ REQUEST(xChangeGCReq);
+ REQUEST_AT_LEAST_SIZE(xChangeGCReq);
+
+ result = dixLookupGC(&pGC, stuff->gc, client, DixSetAttrAccess);
+ if (result != Success)
+ return result;
+
+ len = client->req_len - bytes_to_int32(sizeof(xChangeGCReq));
+ if (len != Ones(stuff->mask))
+ return BadLength;
+
+ result = dixChangeGC(client, pGC, stuff->mask, (CARD32 *) &stuff[1], 0);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return(result);
+ }
+}
+
+int
+ProcCopyGC(ClientPtr client)
+{
+ GC *dstGC;
+ GC *pGC;
+ int result;
+ REQUEST(xCopyGCReq);
+ REQUEST_SIZE_MATCH(xCopyGCReq);
+
+ result = dixLookupGC(&pGC, stuff->srcGC, client, DixGetAttrAccess);
+ if (result != Success)
+ return result;
+ result = dixLookupGC(&dstGC, stuff->dstGC, client, DixSetAttrAccess);
+ if (result != Success)
+ return result;
+ if ((dstGC->pScreen != pGC->pScreen) || (dstGC->depth != pGC->depth))
+ return (BadMatch);
+ result = CopyGC(pGC, dstGC, stuff->mask);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return(result);
+ }
+}
+
+int
+ProcSetDashes(ClientPtr client)
+{
+ GC *pGC;
+ int result;
+ REQUEST(xSetDashesReq);
+
+ REQUEST_FIXED_SIZE(xSetDashesReq, stuff->nDashes);
+ if (stuff->nDashes == 0)
+ {
+ client->errorValue = 0;
+ return BadValue;
+ }
+
+ result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess);
+ if (result != Success)
+ return result;
+
+ result = SetDashes(pGC, stuff->dashOffset, stuff->nDashes,
+ (unsigned char *)&stuff[1]);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return(result);
+ }
+}
+
+int
+ProcSetClipRectangles(ClientPtr client)
+{
+ int nr, result;
+ GC *pGC;
+ REQUEST(xSetClipRectanglesReq);
+
+ REQUEST_AT_LEAST_SIZE(xSetClipRectanglesReq);
+ if ((stuff->ordering != Unsorted) && (stuff->ordering != YSorted) &&
+ (stuff->ordering != YXSorted) && (stuff->ordering != YXBanded))
+ {
+ client->errorValue = stuff->ordering;
+ return BadValue;
+ }
+ result = dixLookupGC(&pGC,stuff->gc, client, DixSetAttrAccess);
+ if (result != Success)
+ return result;
+
+ nr = (client->req_len << 2) - sizeof(xSetClipRectanglesReq);
+ if (nr & 4)
+ return(BadLength);
+ nr >>= 3;
+ result = SetClipRects(pGC, stuff->xOrigin, stuff->yOrigin,
+ nr, (xRectangle *)&stuff[1], (int)stuff->ordering);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+}
+
+int
+ProcFreeGC(ClientPtr client)
+{
+ GC *pGC;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupGC(&pGC, stuff->id, client, DixDestroyAccess);
+ if (rc != Success)
+ return rc;
+
+ FreeResource(stuff->id, RT_NONE);
+ return(client->noClientException);
+}
+
+int
+ProcClearToBackground(ClientPtr client)
+{
+ REQUEST(xClearAreaReq);
+ WindowPtr pWin;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xClearAreaReq);
+ rc = dixLookupWindow(&pWin, stuff->window, client, DixWriteAccess);
+ if (rc != Success)
+ return rc;
+ if (pWin->drawable.class == InputOnly)
+ {
+ client->errorValue = stuff->window;
+ return (BadMatch);
+ }
+ if ((stuff->exposures != xTrue) && (stuff->exposures != xFalse))
+ {
+ client->errorValue = stuff->exposures;
+ return(BadValue);
+ }
+ (*pWin->drawable.pScreen->ClearToBackground)(pWin, stuff->x, stuff->y,
+ stuff->width, stuff->height,
+ (Bool)stuff->exposures);
+ return(client->noClientException);
+}
+
+int
+ProcCopyArea(ClientPtr client)
+{
+ DrawablePtr pDst;
+ DrawablePtr pSrc;
+ GC *pGC;
+ REQUEST(xCopyAreaReq);
+ RegionPtr pRgn;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xCopyAreaReq);
+
+ VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pDst, DixWriteAccess);
+ if (stuff->dstDrawable != stuff->srcDrawable)
+ {
+ rc = dixLookupDrawable(&pSrc, stuff->srcDrawable, client, 0,
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+ if ((pDst->pScreen != pSrc->pScreen) || (pDst->depth != pSrc->depth))
+ {
+ client->errorValue = stuff->dstDrawable;
+ return (BadMatch);
+ }
+ }
+ else
+ pSrc = pDst;
+
+ pRgn = (*pGC->ops->CopyArea)(pSrc, pDst, pGC, stuff->srcX, stuff->srcY,
+ stuff->width, stuff->height,
+ stuff->dstX, stuff->dstY);
+ if (pGC->graphicsExposures)
+ {
+ (*pDst->pScreen->SendGraphicsExpose)
+ (client, pRgn, stuff->dstDrawable, X_CopyArea, 0);
+ if (pRgn)
+ REGION_DESTROY(pDst->pScreen, pRgn);
+ }
+
+ return(client->noClientException);
+}
+
+int
+ProcCopyPlane(ClientPtr client)
+{
+ DrawablePtr psrcDraw, pdstDraw;
+ GC *pGC;
+ REQUEST(xCopyPlaneReq);
+ RegionPtr pRgn;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xCopyPlaneReq);
+
+ VALIDATE_DRAWABLE_AND_GC(stuff->dstDrawable, pdstDraw, DixWriteAccess);
+ if (stuff->dstDrawable != stuff->srcDrawable)
+ {
+ rc = dixLookupDrawable(&psrcDraw, stuff->srcDrawable, client, 0,
+ DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ if (pdstDraw->pScreen != psrcDraw->pScreen)
+ {
+ client->errorValue = stuff->dstDrawable;
+ return (BadMatch);
+ }
+ }
+ else
+ psrcDraw = pdstDraw;
+
+ /* Check to see if stuff->bitPlane has exactly ONE good bit set */
+ if(stuff->bitPlane == 0 || (stuff->bitPlane & (stuff->bitPlane - 1)) ||
+ (stuff->bitPlane > (1L << (psrcDraw->depth - 1))))
+ {
+ client->errorValue = stuff->bitPlane;
+ return(BadValue);
+ }
+
+ pRgn = (*pGC->ops->CopyPlane)(psrcDraw, pdstDraw, pGC, stuff->srcX, stuff->srcY,
+ stuff->width, stuff->height,
+ stuff->dstX, stuff->dstY, stuff->bitPlane);
+ if (pGC->graphicsExposures)
+ {
+ (*pdstDraw->pScreen->SendGraphicsExpose)
+ (client, pRgn, stuff->dstDrawable, X_CopyPlane, 0);
+ if (pRgn)
+ REGION_DESTROY(pdstDraw->pScreen, pRgn);
+ }
+ return(client->noClientException);
+}
+
+int
+ProcPolyPoint(ClientPtr client)
+{
+ int npoint;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyPointReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyPointReq);
+ if ((stuff->coordMode != CoordModeOrigin) &&
+ (stuff->coordMode != CoordModePrevious))
+ {
+ client->errorValue = stuff->coordMode;
+ return BadValue;
+ }
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyPointReq));
+ if (npoint)
+ (*pGC->ops->PolyPoint)(pDraw, pGC, stuff->coordMode, npoint,
+ (xPoint *) &stuff[1]);
+ return (client->noClientException);
+}
+
+int
+ProcPolyLine(ClientPtr client)
+{
+ int npoint;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyLineReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyLineReq);
+ if ((stuff->coordMode != CoordModeOrigin) &&
+ (stuff->coordMode != CoordModePrevious))
+ {
+ client->errorValue = stuff->coordMode;
+ return BadValue;
+ }
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ npoint = bytes_to_int32((client->req_len << 2) - sizeof(xPolyLineReq));
+ if (npoint > 1)
+ (*pGC->ops->Polylines)(pDraw, pGC, stuff->coordMode, npoint,
+ (DDXPointPtr) &stuff[1]);
+ return(client->noClientException);
+}
+
+int
+ProcPolySegment(ClientPtr client)
+{
+ int nsegs;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolySegmentReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolySegmentReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ nsegs = (client->req_len << 2) - sizeof(xPolySegmentReq);
+ if (nsegs & 4)
+ return(BadLength);
+ nsegs >>= 3;
+ if (nsegs)
+ (*pGC->ops->PolySegment)(pDraw, pGC, nsegs, (xSegment *) &stuff[1]);
+ return (client->noClientException);
+}
+
+int
+ProcPolyRectangle (ClientPtr client)
+{
+ int nrects;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyRectangleReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyRectangleReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ nrects = (client->req_len << 2) - sizeof(xPolyRectangleReq);
+ if (nrects & 4)
+ return(BadLength);
+ nrects >>= 3;
+ if (nrects)
+ (*pGC->ops->PolyRectangle)(pDraw, pGC,
+ nrects, (xRectangle *) &stuff[1]);
+ return(client->noClientException);
+}
+
+int
+ProcPolyArc(ClientPtr client)
+{
+ int narcs;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyArcReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyArcReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ narcs = (client->req_len << 2) - sizeof(xPolyArcReq);
+ if (narcs % sizeof(xArc))
+ return(BadLength);
+ narcs /= sizeof(xArc);
+ if (narcs)
+ (*pGC->ops->PolyArc)(pDraw, pGC, narcs, (xArc *) &stuff[1]);
+ return (client->noClientException);
+}
+
+int
+ProcFillPoly(ClientPtr client)
+{
+ int things;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xFillPolyReq);
+
+ REQUEST_AT_LEAST_SIZE(xFillPolyReq);
+ if ((stuff->shape != Complex) && (stuff->shape != Nonconvex) &&
+ (stuff->shape != Convex))
+ {
+ client->errorValue = stuff->shape;
+ return BadValue;
+ }
+ if ((stuff->coordMode != CoordModeOrigin) &&
+ (stuff->coordMode != CoordModePrevious))
+ {
+ client->errorValue = stuff->coordMode;
+ return BadValue;
+ }
+
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ things = bytes_to_int32((client->req_len << 2) - sizeof(xFillPolyReq));
+ if (things)
+ (*pGC->ops->FillPolygon) (pDraw, pGC, stuff->shape,
+ stuff->coordMode, things,
+ (DDXPointPtr) &stuff[1]);
+ return(client->noClientException);
+}
+
+int
+ProcPolyFillRectangle(ClientPtr client)
+{
+ int things;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyFillRectangleReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyFillRectangleReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ things = (client->req_len << 2) - sizeof(xPolyFillRectangleReq);
+ if (things & 4)
+ return(BadLength);
+ things >>= 3;
+
+ if (things)
+ (*pGC->ops->PolyFillRect) (pDraw, pGC, things,
+ (xRectangle *) &stuff[1]);
+ return (client->noClientException);
+}
+
+int
+ProcPolyFillArc(ClientPtr client)
+{
+ int narcs;
+ GC *pGC;
+ DrawablePtr pDraw;
+ REQUEST(xPolyFillArcReq);
+
+ REQUEST_AT_LEAST_SIZE(xPolyFillArcReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ narcs = (client->req_len << 2) - sizeof(xPolyFillArcReq);
+ if (narcs % sizeof(xArc))
+ return(BadLength);
+ narcs /= sizeof(xArc);
+ if (narcs)
+ (*pGC->ops->PolyFillArc) (pDraw, pGC, narcs, (xArc *) &stuff[1]);
+ return (client->noClientException);
+}
+
+#ifdef MATCH_CLIENT_ENDIAN
+
+int
+ServerOrder (void)
+{
+ int whichbyte = 1;
+
+ if (*((char *) &whichbyte))
+ return LSBFirst;
+ return MSBFirst;
+}
+
+#define ClientOrder(client) ((client)->swapped ? !ServerOrder() : ServerOrder())
+
+void
+ReformatImage (char *base, int nbytes, int bpp, int order)
+{
+ switch (bpp) {
+ case 1: /* yuck */
+ if (BITMAP_BIT_ORDER != order)
+ BitOrderInvert ((unsigned char *) base, nbytes);
+#if IMAGE_BYTE_ORDER != BITMAP_BIT_ORDER && BITMAP_SCANLINE_UNIT != 8
+ ReformatImage (base, nbytes, BITMAP_SCANLINE_UNIT, order);
+#endif
+ break;
+ case 4:
+ break; /* yuck */
+ case 8:
+ break;
+ case 16:
+ if (IMAGE_BYTE_ORDER != order)
+ TwoByteSwap ((unsigned char *) base, nbytes);
+ break;
+ case 32:
+ if (IMAGE_BYTE_ORDER != order)
+ FourByteSwap ((unsigned char *) base, nbytes);
+ break;
+ }
+}
+#else
+#define ReformatImage(b,n,bpp,o)
+#endif
+
+/* 64-bit server notes: the protocol restricts padding of images to
+ * 8-, 16-, or 32-bits. We would like to have 64-bits for the server
+ * to use internally. Removes need for internal alignment checking.
+ * All of the PutImage functions could be changed individually, but
+ * as currently written, they call other routines which require things
+ * to be 64-bit padded on scanlines, so we changed things here.
+ * If an image would be padded differently for 64- versus 32-, then
+ * copy each scanline to a 64-bit padded scanline.
+ * Also, we need to make sure that the image is aligned on a 64-bit
+ * boundary, even if the scanlines are padded to our satisfaction.
+ */
+int
+ProcPutImage(ClientPtr client)
+{
+ GC *pGC;
+ DrawablePtr pDraw;
+ long length; /* length of scanline server padded */
+ long lengthProto; /* length of scanline protocol padded */
+ char *tmpImage;
+ REQUEST(xPutImageReq);
+
+ REQUEST_AT_LEAST_SIZE(xPutImageReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+ if (stuff->format == XYBitmap)
+ {
+ if ((stuff->depth != 1) ||
+ (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad))
+ return BadMatch;
+ length = BitmapBytePad(stuff->width + stuff->leftPad);
+ }
+ else if (stuff->format == XYPixmap)
+ {
+ if ((pDraw->depth != stuff->depth) ||
+ (stuff->leftPad >= (unsigned int)screenInfo.bitmapScanlinePad))
+ return BadMatch;
+ length = BitmapBytePad(stuff->width + stuff->leftPad);
+ length *= stuff->depth;
+ }
+ else if (stuff->format == ZPixmap)
+ {
+ if ((pDraw->depth != stuff->depth) || (stuff->leftPad != 0))
+ return BadMatch;
+ length = PixmapBytePad(stuff->width, stuff->depth);
+ }
+ else
+ {
+ client->errorValue = stuff->format;
+ return BadValue;
+ }
+
+ tmpImage = (char *)&stuff[1];
+ lengthProto = length;
+
+ if ((bytes_to_int32(lengthProto * stuff->height) +
+ bytes_to_int32(sizeof(xPutImageReq))) != client->req_len)
+ return BadLength;
+
+ ReformatImage (tmpImage, lengthProto * stuff->height,
+ stuff->format == ZPixmap ? BitsPerPixel (stuff->depth) : 1,
+ ClientOrder(client));
+
+ (*pGC->ops->PutImage) (pDraw, pGC, stuff->depth, stuff->dstX, stuff->dstY,
+ stuff->width, stuff->height,
+ stuff->leftPad, stuff->format, tmpImage);
+
+ return (client->noClientException);
+}
+
+static int
+DoGetImage(ClientPtr client, int format, Drawable drawable,
+ int x, int y, int width, int height,
+ Mask planemask, xGetImageReply **im_return)
+{
+ DrawablePtr pDraw, pBoundingDraw;
+ int nlines, linesPerBuf, rc;
+ int linesDone;
+ /* coordinates relative to the bounding drawable */
+ int relx, rely;
+ long widthBytesLine, length;
+ Mask plane = 0;
+ char *pBuf;
+ xGetImageReply xgi;
+ RegionPtr pVisibleRegion = NULL;
+
+ if ((format != XYPixmap) && (format != ZPixmap))
+ {
+ client->errorValue = format;
+ return(BadValue);
+ }
+ rc = dixLookupDrawable(&pDraw, drawable, client, 0, DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ memset(&xgi, 0, sizeof(xGetImageReply));
+
+ relx = x;
+ rely = y;
+
+ if(pDraw->type == DRAWABLE_WINDOW)
+ {
+ WindowPtr pWin = (WindowPtr)pDraw;
+
+ /* "If the drawable is a window, the window must be viewable ... or a
+ * BadMatch error results" */
+ if (!pWin->viewable)
+ return BadMatch;
+
+ relx += pDraw->x;
+ rely += pDraw->y;
+
+ if (pDraw->pScreen->GetWindowPixmap) {
+ PixmapPtr pPix = (*pDraw->pScreen->GetWindowPixmap) (pWin);
+
+ pBoundingDraw = &pPix->drawable;
+#ifdef COMPOSITE
+ relx -= pPix->screen_x;
+ rely -= pPix->screen_y;
+#endif
+ }
+ else
+ {
+ pBoundingDraw = (DrawablePtr)WindowTable[pDraw->pScreen->myNum];
+ }
+
+ xgi.visual = wVisual (pWin);
+ }
+ else
+ {
+ pBoundingDraw = pDraw;
+ xgi.visual = None;
+ }
+
+ /* "If the drawable is a pixmap, the given rectangle must be wholly
+ * contained within the pixmap, or a BadMatch error results. If the
+ * drawable is a window [...] it must be the case that if there were no
+ * inferiors or overlapping windows, the specified rectangle of the window
+ * would be fully visible on the screen and wholly contained within the
+ * outside edges of the window, or a BadMatch error results."
+ *
+ * We relax the window case slightly to mean that the rectangle must exist
+ * within the bounds of the window's backing pixmap. In particular, this
+ * means that a GetImage request may succeed or fail with BadMatch depending
+ * on whether any of its ancestor windows are redirected. */
+ if(relx < 0 || relx + width > (int)pBoundingDraw->width ||
+ rely < 0 || rely + height > (int)pBoundingDraw->height)
+ return BadMatch;
+
+ xgi.type = X_Reply;
+ xgi.sequenceNumber = client->sequence;
+ xgi.depth = pDraw->depth;
+ if(format == ZPixmap)
+ {
+ widthBytesLine = PixmapBytePad(width, pDraw->depth);
+ length = widthBytesLine * height;
+
+ }
+ else
+ {
+ widthBytesLine = BitmapBytePad(width);
+ plane = ((Mask)1) << (pDraw->depth - 1);
+ /* only planes asked for */
+ length = widthBytesLine * height *
+ Ones(planemask & (plane | (plane - 1)));
+
+ }
+
+ xgi.length = length;
+
+ if (im_return) {
+ pBuf = xcalloc(1, sz_xGetImageReply + length);
+ if (!pBuf)
+ return (BadAlloc);
+ if (widthBytesLine == 0)
+ linesPerBuf = 0;
+ else
+ linesPerBuf = height;
+ *im_return = (xGetImageReply *)pBuf;
+ *(xGetImageReply *)pBuf = xgi;
+ pBuf += sz_xGetImageReply;
+ } else {
+ xgi.length = bytes_to_int32(xgi.length);
+ if (widthBytesLine == 0 || height == 0)
+ linesPerBuf = 0;
+ else if (widthBytesLine >= IMAGE_BUFSIZE)
+ linesPerBuf = 1;
+ else
+ {
+ linesPerBuf = IMAGE_BUFSIZE / widthBytesLine;
+ if (linesPerBuf > height)
+ linesPerBuf = height;
+ }
+ length = linesPerBuf * widthBytesLine;
+ if (linesPerBuf < height)
+ {
+ /* we have to make sure intermediate buffers don't need padding */
+ while ((linesPerBuf > 1) &&
+ (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1)))
+ {
+ linesPerBuf--;
+ length -= widthBytesLine;
+ }
+ while (length & ((1L << LOG2_BYTES_PER_SCANLINE_PAD)-1))
+ {
+ linesPerBuf++;
+ length += widthBytesLine;
+ }
+ }
+ if(!(pBuf = xcalloc(1, length)))
+ return (BadAlloc);
+ WriteReplyToClient(client, sizeof (xGetImageReply), &xgi);
+ }
+
+ if (pDraw->type == DRAWABLE_WINDOW)
+ {
+ pVisibleRegion = NotClippedByChildren((WindowPtr)pDraw);
+ if (pVisibleRegion)
+ {
+ REGION_TRANSLATE(pDraw->pScreen, pVisibleRegion,
+ -pDraw->x, -pDraw->y);
+ }
+ }
+
+ if (linesPerBuf == 0)
+ {
+ /* nothing to do */
+ }
+ else if (format == ZPixmap)
+ {
+ linesDone = 0;
+ while (height - linesDone > 0)
+ {
+ nlines = min(linesPerBuf, height - linesDone);
+ (*pDraw->pScreen->GetImage) (pDraw,
+ x,
+ y + linesDone,
+ width,
+ nlines,
+ format,
+ planemask,
+ (pointer) pBuf);
+ if (pVisibleRegion)
+ XaceCensorImage(client, pVisibleRegion, widthBytesLine,
+ pDraw, x, y + linesDone, width,
+ nlines, format, pBuf);
+
+ /* Note that this is NOT a call to WriteSwappedDataToClient,
+ as we do NOT byte swap */
+ if (!im_return)
+ {
+ ReformatImage (pBuf, (int)(nlines * widthBytesLine),
+ BitsPerPixel (pDraw->depth),
+ ClientOrder(client));
+
+/* Don't split me, gcc pukes when you do */
+ (void)WriteToClient(client,
+ (int)(nlines * widthBytesLine),
+ pBuf);
+ }
+ linesDone += nlines;
+ }
+ }
+ else /* XYPixmap */
+ {
+ for (; plane; plane >>= 1)
+ {
+ if (planemask & plane)
+ {
+ linesDone = 0;
+ while (height - linesDone > 0)
+ {
+ nlines = min(linesPerBuf, height - linesDone);
+ (*pDraw->pScreen->GetImage) (pDraw,
+ x,
+ y + linesDone,
+ width,
+ nlines,
+ format,
+ plane,
+ (pointer)pBuf);
+ if (pVisibleRegion)
+ XaceCensorImage(client, pVisibleRegion,
+ widthBytesLine,
+ pDraw, x, y + linesDone, width,
+ nlines, format, pBuf);
+
+ /* Note: NOT a call to WriteSwappedDataToClient,
+ as we do NOT byte swap */
+ if (im_return) {
+ pBuf += nlines * widthBytesLine;
+ } else {
+ ReformatImage (pBuf,
+ (int)(nlines * widthBytesLine),
+ 1,
+ ClientOrder (client));
+
+/* Don't split me, gcc pukes when you do */
+ (void)WriteToClient(client,
+ (int)(nlines * widthBytesLine),
+ pBuf);
+ }
+ linesDone += nlines;
+ }
+ }
+ }
+ }
+ if (pVisibleRegion)
+ REGION_DESTROY(pDraw->pScreen, pVisibleRegion);
+ if (!im_return)
+ xfree(pBuf);
+ return (client->noClientException);
+}
+
+int
+ProcGetImage(ClientPtr client)
+{
+ REQUEST(xGetImageReq);
+
+ REQUEST_SIZE_MATCH(xGetImageReq);
+
+ return DoGetImage(client, stuff->format, stuff->drawable,
+ stuff->x, stuff->y,
+ (int)stuff->width, (int)stuff->height,
+ stuff->planeMask, (xGetImageReply **)NULL);
+}
+
+int
+ProcPolyText(ClientPtr client)
+{
+ int err;
+ REQUEST(xPolyTextReq);
+ DrawablePtr pDraw;
+ GC *pGC;
+
+ REQUEST_AT_LEAST_SIZE(xPolyTextReq);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+
+ err = PolyText(client,
+ pDraw,
+ pGC,
+ (unsigned char *)&stuff[1],
+ ((unsigned char *) stuff) + (client->req_len << 2),
+ stuff->x,
+ stuff->y,
+ stuff->reqType,
+ stuff->drawable);
+
+ if (err == Success)
+ {
+ return(client->noClientException);
+ }
+ else
+ return err;
+}
+
+int
+ProcImageText8(ClientPtr client)
+{
+ int err;
+ DrawablePtr pDraw;
+ GC *pGC;
+
+ REQUEST(xImageTextReq);
+
+ REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+
+ err = ImageText(client,
+ pDraw,
+ pGC,
+ stuff->nChars,
+ (unsigned char *)&stuff[1],
+ stuff->x,
+ stuff->y,
+ stuff->reqType,
+ stuff->drawable);
+
+ if (err == Success)
+ {
+ return(client->noClientException);
+ }
+ else
+ return err;
+}
+
+int
+ProcImageText16(ClientPtr client)
+{
+ int err;
+ DrawablePtr pDraw;
+ GC *pGC;
+
+ REQUEST(xImageTextReq);
+
+ REQUEST_FIXED_SIZE(xImageTextReq, stuff->nChars << 1);
+ VALIDATE_DRAWABLE_AND_GC(stuff->drawable, pDraw, DixWriteAccess);
+
+ err = ImageText(client,
+ pDraw,
+ pGC,
+ stuff->nChars,
+ (unsigned char *)&stuff[1],
+ stuff->x,
+ stuff->y,
+ stuff->reqType,
+ stuff->drawable);
+
+ if (err == Success)
+ {
+ return(client->noClientException);
+ }
+ else
+ return err;
+}
+
+
+int
+ProcCreateColormap(ClientPtr client)
+{
+ VisualPtr pVisual;
+ ColormapPtr pmap;
+ Colormap mid;
+ WindowPtr pWin;
+ ScreenPtr pScreen;
+ REQUEST(xCreateColormapReq);
+ int i, result;
+
+ REQUEST_SIZE_MATCH(xCreateColormapReq);
+
+ if ((stuff->alloc != AllocNone) && (stuff->alloc != AllocAll))
+ {
+ client->errorValue = stuff->alloc;
+ return(BadValue);
+ }
+ mid = stuff->mid;
+ LEGAL_NEW_RESOURCE(mid, client);
+ result = dixLookupWindow(&pWin, stuff->window, client, DixGetAttrAccess);
+ if (result != Success)
+ return result;
+
+ pScreen = pWin->drawable.pScreen;
+ for (i = 0, pVisual = pScreen->visuals;
+ i < pScreen->numVisuals;
+ i++, pVisual++)
+ {
+ if (pVisual->vid != stuff->visual)
+ continue;
+ result = CreateColormap(mid, pScreen, pVisual, &pmap,
+ (int)stuff->alloc, client->index);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return(result);
+ }
+ client->errorValue = stuff->visual;
+ return(BadMatch);
+}
+
+int
+ProcFreeColormap(ClientPtr client)
+{
+ ColormapPtr pmap;
+ int rc;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupResourceByType((pointer *)&pmap, stuff->id, RT_COLORMAP, client,
+ DixDestroyAccess);
+ if (rc == Success)
+ {
+ /* Freeing a default colormap is a no-op */
+ if (!(pmap->flags & IsDefault))
+ FreeResource(stuff->id, RT_NONE);
+ return (client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+
+int
+ProcCopyColormapAndFree(ClientPtr client)
+{
+ Colormap mid;
+ ColormapPtr pSrcMap;
+ REQUEST(xCopyColormapAndFreeReq);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xCopyColormapAndFreeReq);
+ mid = stuff->mid;
+ LEGAL_NEW_RESOURCE(mid, client);
+ rc = dixLookupResourceByType((pointer *)&pSrcMap, stuff->srcCmap, RT_COLORMAP,
+ client, DixReadAccess|DixRemoveAccess);
+ if (rc == Success)
+ {
+ rc = CopyColormapAndFree(mid, pSrcMap, client->index);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+ else
+ {
+ client->errorValue = stuff->srcCmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcInstallColormap(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client,
+ DixInstallAccess);
+ if (rc != Success)
+ goto out;
+
+ rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess);
+ if (rc != Success)
+ goto out;
+
+ (*(pcmp->pScreen->InstallColormap)) (pcmp);
+
+ rc = client->noClientException;
+out:
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadColor : rc;
+}
+
+int
+ProcUninstallColormap(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->id, RT_COLORMAP, client,
+ DixUninstallAccess);
+ if (rc != Success)
+ goto out;
+
+ rc = XaceHook(XACE_SCREEN_ACCESS, client, pcmp->pScreen, DixSetAttrAccess);
+ if (rc != Success)
+ goto out;
+
+ if(pcmp->mid != pcmp->pScreen->defColormap)
+ (*(pcmp->pScreen->UninstallColormap)) (pcmp);
+
+ rc = client->noClientException;
+out:
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadColor : rc;
+}
+
+int
+ProcListInstalledColormaps(ClientPtr client)
+{
+ xListInstalledColormapsReply *preply;
+ int nummaps, rc;
+ WindowPtr pWin;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
+ if (rc != Success)
+ goto out;
+
+ rc = XaceHook(XACE_SCREEN_ACCESS, client, pWin->drawable.pScreen,
+ DixGetAttrAccess);
+ if (rc != Success)
+ goto out;
+
+ preply = xalloc(sizeof(xListInstalledColormapsReply) +
+ pWin->drawable.pScreen->maxInstalledCmaps *
+ sizeof(Colormap));
+ if(!preply)
+ return(BadAlloc);
+
+ preply->type = X_Reply;
+ preply->sequenceNumber = client->sequence;
+ nummaps = (*pWin->drawable.pScreen->ListInstalledColormaps)
+ (pWin->drawable.pScreen, (Colormap *)&preply[1]);
+ preply->nColormaps = nummaps;
+ preply->length = nummaps;
+ WriteReplyToClient(client, sizeof (xListInstalledColormapsReply), preply);
+ client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+ WriteSwappedDataToClient(client, nummaps * sizeof(Colormap), &preply[1]);
+ xfree(preply);
+ rc = client->noClientException;
+out:
+ return rc;
+}
+
+int
+ProcAllocColor (ClientPtr client)
+{
+ ColormapPtr pmap;
+ int rc;
+ xAllocColorReply acr;
+ REQUEST(xAllocColorReq);
+
+ REQUEST_SIZE_MATCH(xAllocColorReq);
+ rc = dixLookupResourceByType((pointer *)&pmap, stuff->cmap, RT_COLORMAP, client,
+ DixAddAccess);
+ if (rc == Success)
+ {
+ acr.type = X_Reply;
+ acr.length = 0;
+ acr.sequenceNumber = client->sequence;
+ acr.red = stuff->red;
+ acr.green = stuff->green;
+ acr.blue = stuff->blue;
+ acr.pixel = 0;
+ if( (rc = AllocColor(pmap, &acr.red, &acr.green, &acr.blue,
+ &acr.pixel, client->index)) )
+ {
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+#ifdef PANORAMIX
+ if (noPanoramiXExtension || !pmap->pScreen->myNum)
+#endif
+ WriteReplyToClient(client, sizeof(xAllocColorReply), &acr);
+ return (client->noClientException);
+
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcAllocNamedColor (ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xAllocNamedColorReq);
+
+ REQUEST_FIXED_SIZE(xAllocNamedColorReq, stuff->nbytes);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixAddAccess);
+ if (rc == Success)
+ {
+ xAllocNamedColorReply ancr;
+
+ ancr.type = X_Reply;
+ ancr.length = 0;
+ ancr.sequenceNumber = client->sequence;
+
+ if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes,
+ &ancr.exactRed, &ancr.exactGreen, &ancr.exactBlue))
+ {
+ ancr.screenRed = ancr.exactRed;
+ ancr.screenGreen = ancr.exactGreen;
+ ancr.screenBlue = ancr.exactBlue;
+ ancr.pixel = 0;
+ if( (rc = AllocColor(pcmp,
+ &ancr.screenRed, &ancr.screenGreen, &ancr.screenBlue,
+ &ancr.pixel, client->index)) )
+ {
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+#ifdef PANORAMIX
+ if (noPanoramiXExtension || !pcmp->pScreen->myNum)
+#endif
+ WriteReplyToClient(client, sizeof (xAllocNamedColorReply), &ancr);
+ return (client->noClientException);
+ }
+ else
+ return(BadName);
+
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcAllocColorCells (ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xAllocColorCellsReq);
+
+ REQUEST_SIZE_MATCH(xAllocColorCellsReq);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixAddAccess);
+ if (rc == Success)
+ {
+ xAllocColorCellsReply accr;
+ int npixels, nmasks;
+ long length;
+ Pixel *ppixels, *pmasks;
+
+ npixels = stuff->colors;
+ if (!npixels)
+ {
+ client->errorValue = npixels;
+ return (BadValue);
+ }
+ if (stuff->contiguous != xTrue && stuff->contiguous != xFalse)
+ {
+ client->errorValue = stuff->contiguous;
+ return (BadValue);
+ }
+ nmasks = stuff->planes;
+ length = ((long)npixels + (long)nmasks) * sizeof(Pixel);
+ ppixels = xalloc(length);
+ if(!ppixels)
+ return(BadAlloc);
+ pmasks = ppixels + npixels;
+
+ if( (rc = AllocColorCells(client->index, pcmp, npixels, nmasks,
+ (Bool)stuff->contiguous, ppixels, pmasks)) )
+ {
+ xfree(ppixels);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+#ifdef PANORAMIX
+ if (noPanoramiXExtension || !pcmp->pScreen->myNum)
+#endif
+ {
+ accr.type = X_Reply;
+ accr.length = bytes_to_int32(length);
+ accr.sequenceNumber = client->sequence;
+ accr.nPixels = npixels;
+ accr.nMasks = nmasks;
+ WriteReplyToClient(client, sizeof (xAllocColorCellsReply), &accr);
+ client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+ WriteSwappedDataToClient(client, length, ppixels);
+ }
+ xfree(ppixels);
+ return (client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcAllocColorPlanes(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xAllocColorPlanesReq);
+
+ REQUEST_SIZE_MATCH(xAllocColorPlanesReq);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixAddAccess);
+ if (rc == Success)
+ {
+ xAllocColorPlanesReply acpr;
+ int npixels;
+ long length;
+ Pixel *ppixels;
+
+ npixels = stuff->colors;
+ if (!npixels)
+ {
+ client->errorValue = npixels;
+ return (BadValue);
+ }
+ if (stuff->contiguous != xTrue && stuff->contiguous != xFalse)
+ {
+ client->errorValue = stuff->contiguous;
+ return (BadValue);
+ }
+ acpr.type = X_Reply;
+ acpr.sequenceNumber = client->sequence;
+ acpr.nPixels = npixels;
+ length = (long)npixels * sizeof(Pixel);
+ ppixels = xalloc(length);
+ if(!ppixels)
+ return(BadAlloc);
+ if( (rc = AllocColorPlanes(client->index, pcmp, npixels,
+ (int)stuff->red, (int)stuff->green, (int)stuff->blue,
+ (Bool)stuff->contiguous, ppixels,
+ &acpr.redMask, &acpr.greenMask, &acpr.blueMask)) )
+ {
+ xfree(ppixels);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+ acpr.length = bytes_to_int32(length);
+#ifdef PANORAMIX
+ if (noPanoramiXExtension || !pcmp->pScreen->myNum)
+#endif
+ {
+ WriteReplyToClient(client, sizeof(xAllocColorPlanesReply), &acpr);
+ client->pSwapReplyFunc = (ReplySwapPtr) Swap32Write;
+ WriteSwappedDataToClient(client, length, ppixels);
+ }
+ xfree(ppixels);
+ return (client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcFreeColors(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xFreeColorsReq);
+
+ REQUEST_AT_LEAST_SIZE(xFreeColorsReq);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixRemoveAccess);
+ if (rc == Success)
+ {
+ int count;
+
+ if(pcmp->flags & AllAllocated)
+ return(BadAccess);
+ count = bytes_to_int32((client->req_len << 2) - sizeof(xFreeColorsReq));
+ rc = FreeColors(pcmp, client->index, count,
+ (Pixel *)&stuff[1], (Pixel)stuff->planeMask);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return rc;
+ }
+
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcStoreColors (ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xStoreColorsReq);
+
+ REQUEST_AT_LEAST_SIZE(xStoreColorsReq);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixWriteAccess);
+ if (rc == Success)
+ {
+ int count;
+
+ count = (client->req_len << 2) - sizeof(xStoreColorsReq);
+ if (count % sizeof(xColorItem))
+ return(BadLength);
+ count /= sizeof(xColorItem);
+ rc = StoreColors(pcmp, count, (xColorItem *)&stuff[1]);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return rc;
+ }
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcStoreNamedColor (ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xStoreNamedColorReq);
+
+ REQUEST_FIXED_SIZE(xStoreNamedColorReq, stuff->nbytes);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixWriteAccess);
+ if (rc == Success)
+ {
+ xColorItem def;
+
+ if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1],
+ stuff->nbytes, &def.red, &def.green, &def.blue))
+ {
+ def.flags = stuff->flags;
+ def.pixel = stuff->pixel;
+ rc = StoreColors(pcmp, 1, &def);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ return rc;
+ }
+ return (BadName);
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcQueryColors(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xQueryColorsReq);
+
+ REQUEST_AT_LEAST_SIZE(xQueryColorsReq);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixReadAccess);
+ if (rc == Success)
+ {
+ int count;
+ xrgb *prgbs;
+ xQueryColorsReply qcr;
+
+ count = bytes_to_int32((client->req_len << 2) - sizeof(xQueryColorsReq));
+ prgbs = xcalloc(1, count * sizeof(xrgb));
+ if(!prgbs && count)
+ return(BadAlloc);
+ if( (rc = QueryColors(pcmp, count, (Pixel *)&stuff[1], prgbs)) )
+ {
+ if (prgbs) xfree(prgbs);
+ if (client->noClientException != Success)
+ return(client->noClientException);
+ else
+ {
+ client->errorValue = clientErrorValue;
+ return rc;
+ }
+ }
+ memset(&qcr, 0, sizeof(xQueryColorsReply));
+ qcr.type = X_Reply;
+ qcr.length = bytes_to_int32(count * sizeof(xrgb));
+ qcr.sequenceNumber = client->sequence;
+ qcr.nColors = count;
+ WriteReplyToClient(client, sizeof(xQueryColorsReply), &qcr);
+ if (count)
+ {
+ client->pSwapReplyFunc = (ReplySwapPtr) SQColorsExtend;
+ WriteSwappedDataToClient(client, count * sizeof(xrgb), prgbs);
+ }
+ if (prgbs) xfree(prgbs);
+ return(client->noClientException);
+
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcLookupColor(ClientPtr client)
+{
+ ColormapPtr pcmp;
+ int rc;
+ REQUEST(xLookupColorReq);
+
+ REQUEST_FIXED_SIZE(xLookupColorReq, stuff->nbytes);
+ rc = dixLookupResourceByType((pointer *)&pcmp, stuff->cmap, RT_COLORMAP, client,
+ DixReadAccess);
+ if (rc == Success)
+ {
+ xLookupColorReply lcr;
+
+ if(OsLookupColor(pcmp->pScreen->myNum, (char *)&stuff[1], stuff->nbytes,
+ &lcr.exactRed, &lcr.exactGreen, &lcr.exactBlue))
+ {
+ lcr.type = X_Reply;
+ lcr.length = 0;
+ lcr.sequenceNumber = client->sequence;
+ lcr.screenRed = lcr.exactRed;
+ lcr.screenGreen = lcr.exactGreen;
+ lcr.screenBlue = lcr.exactBlue;
+ (*pcmp->pScreen->ResolveColor)(&lcr.screenRed,
+ &lcr.screenGreen,
+ &lcr.screenBlue,
+ pcmp->pVisual);
+ WriteReplyToClient(client, sizeof(xLookupColorReply), &lcr);
+ return(client->noClientException);
+ }
+ return (BadName);
+ }
+ else
+ {
+ client->errorValue = stuff->cmap;
+ return (rc == BadValue) ? BadColor : rc;
+ }
+}
+
+int
+ProcCreateCursor (ClientPtr client)
+{
+ CursorPtr pCursor;
+ PixmapPtr src;
+ PixmapPtr msk;
+ unsigned char * srcbits;
+ unsigned char * mskbits;
+ unsigned short width, height;
+ long n;
+ CursorMetricRec cm;
+ int rc;
+
+ REQUEST(xCreateCursorReq);
+
+ REQUEST_SIZE_MATCH(xCreateCursorReq);
+ LEGAL_NEW_RESOURCE(stuff->cid, client);
+
+ rc = dixLookupResourceByType((pointer *)&src, stuff->source, RT_PIXMAP, client,
+ DixReadAccess);
+ if (rc != Success) {
+ client->errorValue = stuff->source;
+ return (rc == BadValue) ? BadPixmap : rc;
+ }
+
+ rc = dixLookupResourceByType((pointer *)&msk, stuff->mask, RT_PIXMAP, client,
+ DixReadAccess);
+ if (rc != Success)
+ {
+ if (stuff->mask != None)
+ {
+ client->errorValue = stuff->mask;
+ return (rc == BadValue) ? BadPixmap : rc;
+ }
+ }
+ else if ( src->drawable.width != msk->drawable.width
+ || src->drawable.height != msk->drawable.height
+ || src->drawable.depth != 1
+ || msk->drawable.depth != 1)
+ return (BadMatch);
+
+ width = src->drawable.width;
+ height = src->drawable.height;
+
+ if ( stuff->x > width
+ || stuff->y > height )
+ return (BadMatch);
+
+ n = BitmapBytePad(width)*height;
+ srcbits = xcalloc(1, n);
+ if (!srcbits)
+ return (BadAlloc);
+ mskbits = xalloc(n);
+ if (!mskbits)
+ {
+ xfree(srcbits);
+ return (BadAlloc);
+ }
+
+ (* src->drawable.pScreen->GetImage)( (DrawablePtr)src, 0, 0, width, height,
+ XYPixmap, 1, (pointer)srcbits);
+ if ( msk == (PixmapPtr)NULL)
+ {
+ unsigned char *bits = mskbits;
+ while (--n >= 0)
+ *bits++ = ~0;
+ }
+ else
+ {
+ /* zeroing the (pad) bits helps some ddx cursor handling */
+ bzero((char *)mskbits, n);
+ (* msk->drawable.pScreen->GetImage)( (DrawablePtr)msk, 0, 0, width,
+ height, XYPixmap, 1, (pointer)mskbits);
+ }
+ cm.width = width;
+ cm.height = height;
+ cm.xhot = stuff->x;
+ cm.yhot = stuff->y;
+ rc = AllocARGBCursor(srcbits, mskbits, NULL, &cm,
+ stuff->foreRed, stuff->foreGreen, stuff->foreBlue,
+ stuff->backRed, stuff->backGreen, stuff->backBlue,
+ &pCursor, client, stuff->cid);
+
+ if (rc != Success)
+ return rc;
+ if (!AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor))
+ return BadAlloc;
+
+ return client->noClientException;
+}
+
+int
+ProcCreateGlyphCursor (ClientPtr client)
+{
+ CursorPtr pCursor;
+ int res;
+
+ REQUEST(xCreateGlyphCursorReq);
+
+ REQUEST_SIZE_MATCH(xCreateGlyphCursorReq);
+ LEGAL_NEW_RESOURCE(stuff->cid, client);
+
+ res = AllocGlyphCursor(stuff->source, stuff->sourceChar,
+ stuff->mask, stuff->maskChar,
+ stuff->foreRed, stuff->foreGreen, stuff->foreBlue,
+ stuff->backRed, stuff->backGreen, stuff->backBlue,
+ &pCursor, client, stuff->cid);
+ if (res != Success)
+ return res;
+ if (AddResource(stuff->cid, RT_CURSOR, (pointer)pCursor))
+ return client->noClientException;
+ return BadAlloc;
+}
+
+
+int
+ProcFreeCursor (ClientPtr client)
+{
+ CursorPtr pCursor;
+ int rc;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ rc = dixLookupResourceByType((pointer *)&pCursor, stuff->id, RT_CURSOR, client,
+ DixDestroyAccess);
+ if (rc == Success)
+ {
+ FreeResource(stuff->id, RT_NONE);
+ return (client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->id;
+ return (rc == BadValue) ? BadCursor : rc;
+ }
+}
+
+int
+ProcQueryBestSize (ClientPtr client)
+{
+ xQueryBestSizeReply reply;
+ DrawablePtr pDraw;
+ ScreenPtr pScreen;
+ int rc;
+ REQUEST(xQueryBestSizeReq);
+ REQUEST_SIZE_MATCH(xQueryBestSizeReq);
+
+ if ((stuff->class != CursorShape) &&
+ (stuff->class != TileShape) &&
+ (stuff->class != StippleShape))
+ {
+ client->errorValue = stuff->class;
+ return(BadValue);
+ }
+
+ rc = dixLookupDrawable(&pDraw, stuff->drawable, client, M_ANY,
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ if (stuff->class != CursorShape && pDraw->type == UNDRAWABLE_WINDOW)
+ return (BadMatch);
+ pScreen = pDraw->pScreen;
+ rc = XaceHook(XACE_SCREEN_ACCESS, client, pScreen, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ (* pScreen->QueryBestSize)(stuff->class, &stuff->width,
+ &stuff->height, pScreen);
+ memset(&reply, 0, sizeof(xQueryBestSizeReply));
+ reply.type = X_Reply;
+ reply.length = 0;
+ reply.sequenceNumber = client->sequence;
+ reply.width = stuff->width;
+ reply.height = stuff->height;
+ WriteReplyToClient(client, sizeof(xQueryBestSizeReply), &reply);
+ return (client->noClientException);
+}
+
+
+int
+ProcSetScreenSaver (ClientPtr client)
+{
+ int rc, i, blankingOption, exposureOption;
+ REQUEST(xSetScreenSaverReq);
+ REQUEST_SIZE_MATCH(xSetScreenSaverReq);
+
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
+ DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+
+ blankingOption = stuff->preferBlank;
+ if ((blankingOption != DontPreferBlanking) &&
+ (blankingOption != PreferBlanking) &&
+ (blankingOption != DefaultBlanking))
+ {
+ client->errorValue = blankingOption;
+ return BadValue;
+ }
+ exposureOption = stuff->allowExpose;
+ if ((exposureOption != DontAllowExposures) &&
+ (exposureOption != AllowExposures) &&
+ (exposureOption != DefaultExposures))
+ {
+ client->errorValue = exposureOption;
+ return BadValue;
+ }
+ if (stuff->timeout < -1)
+ {
+ client->errorValue = stuff->timeout;
+ return BadValue;
+ }
+ if (stuff->interval < -1)
+ {
+ client->errorValue = stuff->interval;
+ return BadValue;
+ }
+
+ if (blankingOption == DefaultBlanking)
+ ScreenSaverBlanking = defaultScreenSaverBlanking;
+ else
+ ScreenSaverBlanking = blankingOption;
+ if (exposureOption == DefaultExposures)
+ ScreenSaverAllowExposures = defaultScreenSaverAllowExposures;
+ else
+ ScreenSaverAllowExposures = exposureOption;
+
+ if (stuff->timeout >= 0)
+ ScreenSaverTime = stuff->timeout * MILLI_PER_SECOND;
+ else
+ ScreenSaverTime = defaultScreenSaverTime;
+ if (stuff->interval >= 0)
+ ScreenSaverInterval = stuff->interval * MILLI_PER_SECOND;
+ else
+ ScreenSaverInterval = defaultScreenSaverInterval;
+
+ SetScreenSaverTimer();
+ return (client->noClientException);
+}
+
+int
+ProcGetScreenSaver(ClientPtr client)
+{
+ xGetScreenSaverReply rep;
+ int rc, i;
+ REQUEST_SIZE_MATCH(xReq);
+
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ rc = XaceHook(XACE_SCREENSAVER_ACCESS, client, screenInfo.screens[i],
+ DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.timeout = ScreenSaverTime / MILLI_PER_SECOND;
+ rep.interval = ScreenSaverInterval / MILLI_PER_SECOND;
+ rep.preferBlanking = ScreenSaverBlanking;
+ rep.allowExposures = ScreenSaverAllowExposures;
+ WriteReplyToClient(client, sizeof(xGetScreenSaverReply), &rep);
+ return (client->noClientException);
+}
+
+int
+ProcChangeHosts(ClientPtr client)
+{
+ REQUEST(xChangeHostsReq);
+ int result;
+
+ REQUEST_FIXED_SIZE(xChangeHostsReq, stuff->hostLength);
+
+ if(stuff->mode == HostInsert)
+ result = AddHost(client, (int)stuff->hostFamily,
+ stuff->hostLength, (pointer)&stuff[1]);
+ else if (stuff->mode == HostDelete)
+ result = RemoveHost(client, (int)stuff->hostFamily,
+ stuff->hostLength, (pointer)&stuff[1]);
+ else
+ {
+ client->errorValue = stuff->mode;
+ return BadValue;
+ }
+ if (!result)
+ result = client->noClientException;
+ return (result);
+}
+
+int
+ProcListHosts(ClientPtr client)
+{
+ xListHostsReply reply;
+ int len, nHosts, result;
+ pointer pdata;
+ /* REQUEST(xListHostsReq); */
+
+ REQUEST_SIZE_MATCH(xListHostsReq);
+
+ /* untrusted clients can't list hosts */
+ result = XaceHook(XACE_SERVER_ACCESS, client, DixReadAccess);
+ if (result != Success)
+ return result;
+
+ result = GetHosts(&pdata, &nHosts, &len, &reply.enabled);
+ if (result != Success)
+ return(result);
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.nHosts = nHosts;
+ reply.length = bytes_to_int32(len);
+ WriteReplyToClient(client, sizeof(xListHostsReply), &reply);
+ if (nHosts)
+ {
+ client->pSwapReplyFunc = (ReplySwapPtr) SLHostsExtend;
+ WriteSwappedDataToClient(client, len, pdata);
+ }
+ xfree(pdata);
+ return (client->noClientException);
+}
+
+int
+ProcChangeAccessControl(ClientPtr client)
+{
+ int result;
+ REQUEST(xSetAccessControlReq);
+
+ REQUEST_SIZE_MATCH(xSetAccessControlReq);
+ if ((stuff->mode != EnableAccess) && (stuff->mode != DisableAccess))
+ {
+ client->errorValue = stuff->mode;
+ return BadValue;
+ }
+ result = ChangeAccessControl(client, stuff->mode == EnableAccess);
+ if (!result)
+ result = client->noClientException;
+ return (result);
+}
+
+/*********************
+ * CloseDownRetainedResources
+ *
+ * Find all clients that are gone and have terminated in RetainTemporary
+ * and destroy their resources.
+ *********************/
+
+static void
+CloseDownRetainedResources(void)
+{
+ int i;
+ ClientPtr client;
+
+ for (i=1; i<currentMaxClients; i++)
+ {
+ client = clients[i];
+ if (client && (client->closeDownMode == RetainTemporary)
+ && (client->clientGone))
+ CloseDownClient(client);
+ }
+}
+
+int
+ProcKillClient(ClientPtr client)
+{
+ REQUEST(xResourceReq);
+ ClientPtr killclient;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ if (stuff->id == AllTemporary)
+ {
+ CloseDownRetainedResources();
+ return (client->noClientException);
+ }
+
+ rc = dixLookupClient(&killclient, stuff->id, client, DixDestroyAccess);
+ if (rc == Success) {
+ CloseDownClient(killclient);
+ /* if an LBX proxy gets killed, isItTimeToYield will be set */
+ if (isItTimeToYield || (client == killclient))
+ {
+ /* force yield and return Success, so that Dispatch()
+ * doesn't try to touch client
+ */
+ isItTimeToYield = TRUE;
+ return (Success);
+ }
+ return (client->noClientException);
+ }
+ else
+ return rc;
+}
+
+int
+ProcSetFontPath(ClientPtr client)
+{
+ unsigned char *ptr;
+ unsigned long nbytes, total;
+ long nfonts;
+ int n, result;
+ int error;
+ REQUEST(xSetFontPathReq);
+
+ REQUEST_AT_LEAST_SIZE(xSetFontPathReq);
+
+ nbytes = (client->req_len << 2) - sizeof(xSetFontPathReq);
+ total = nbytes;
+ ptr = (unsigned char *)&stuff[1];
+ nfonts = stuff->nFonts;
+ while (--nfonts >= 0)
+ {
+ if ((total == 0) || (total < (n = (*ptr + 1))))
+ return(BadLength);
+ total -= n;
+ ptr += n;
+ }
+ if (total >= 4)
+ return(BadLength);
+ result = SetFontPath(client, stuff->nFonts, (unsigned char *)&stuff[1],
+ &error);
+ if (!result)
+ {
+ result = client->noClientException;
+ client->errorValue = error;
+ }
+ return (result);
+}
+
+int
+ProcGetFontPath(ClientPtr client)
+{
+ xGetFontPathReply reply;
+ int rc, stringLens, numpaths;
+ unsigned char *bufferStart;
+ /* REQUEST (xReq); */
+
+ REQUEST_SIZE_MATCH(xReq);
+ rc = GetFontPath(client, &numpaths, &stringLens, &bufferStart);
+ if (rc != Success)
+ return rc;
+
+ reply.type = X_Reply;
+ reply.sequenceNumber = client->sequence;
+ reply.length = bytes_to_int32(stringLens + numpaths);
+ reply.nPaths = numpaths;
+
+ WriteReplyToClient(client, sizeof(xGetFontPathReply), &reply);
+ if (stringLens || numpaths)
+ (void)WriteToClient(client, stringLens + numpaths, (char *)bufferStart);
+ return(client->noClientException);
+}
+
+int
+ProcChangeCloseDownMode(ClientPtr client)
+{
+ int rc;
+ REQUEST(xSetCloseDownModeReq);
+ REQUEST_SIZE_MATCH(xSetCloseDownModeReq);
+
+ rc = XaceHook(XACE_CLIENT_ACCESS, client, client, DixManageAccess);
+ if (rc != Success)
+ return rc;
+
+ if ((stuff->mode == AllTemporary) ||
+ (stuff->mode == RetainPermanent) ||
+ (stuff->mode == RetainTemporary))
+ {
+ client->closeDownMode = stuff->mode;
+ return (client->noClientException);
+ }
+ else
+ {
+ client->errorValue = stuff->mode;
+ return (BadValue);
+ }
+}
+
+int ProcForceScreenSaver(ClientPtr client)
+{
+ int rc;
+ REQUEST(xForceScreenSaverReq);
+
+ REQUEST_SIZE_MATCH(xForceScreenSaverReq);
+
+ if ((stuff->mode != ScreenSaverReset) &&
+ (stuff->mode != ScreenSaverActive))
+ {
+ client->errorValue = stuff->mode;
+ return BadValue;
+ }
+ rc = dixSaveScreens(client, SCREEN_SAVER_FORCER, (int)stuff->mode);
+ if (rc != Success)
+ return rc;
+ return client->noClientException;
+}
+
+int ProcNoOperation(ClientPtr client)
+{
+ REQUEST_AT_LEAST_SIZE(xReq);
+
+ /* noop -- don't do anything */
+ return(client->noClientException);
+}
+
+void
+InitProcVectors(void)
+{
+ int i;
+ for (i = 0; i<256; i++)
+ {
+ if(!ProcVector[i])
+ {
+ ProcVector[i] = SwappedProcVector[i] = ProcBadRequest;
+ ReplySwapVector[i] = ReplyNotSwappd;
+ }
+ }
+ for(i = LASTEvent; i < 128; i++)
+ {
+ EventSwapVector[i] = NotImplemented;
+ }
+
+}
+
+/**********************
+ * CloseDownClient
+ *
+ * Client can either mark his resources destroy or retain. If retained and
+ * then killed again, the client is really destroyed.
+ *********************/
+
+char dispatchExceptionAtReset = DE_RESET;
+
+void
+CloseDownClient(ClientPtr client)
+{
+ Bool really_close_down = client->clientGone ||
+ client->closeDownMode == DestroyAll;
+
+ if (!client->clientGone)
+ {
+ /* ungrab server if grabbing client dies */
+ if (grabState != GrabNone && grabClient == client)
+ {
+ UngrabServer(client);
+ }
+ BITCLEAR(grabWaiters, client->index);
+ DeleteClientFromAnySelections(client);
+ ReleaseActiveGrabs(client);
+ DeleteClientFontStuff(client);
+ if (!really_close_down)
+ {
+ /* This frees resources that should never be retained
+ * no matter what the close down mode is. Actually we
+ * could do this unconditionally, but it's probably
+ * better not to traverse all the client's resources
+ * twice (once here, once a few lines down in
+ * FreeClientResources) in the common case of
+ * really_close_down == TRUE.
+ */
+ FreeClientNeverRetainResources(client);
+ client->clientState = ClientStateRetained;
+ if (ClientStateCallback)
+ {
+ NewClientInfoRec clientinfo;
+
+ clientinfo.client = client;
+ clientinfo.prefix = (xConnSetupPrefix *)NULL;
+ clientinfo.setup = (xConnSetup *) NULL;
+ CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
+ }
+ }
+ client->clientGone = TRUE; /* so events aren't sent to client */
+ if (ClientIsAsleep(client))
+ ClientSignal (client);
+ ProcessWorkQueueZombies();
+ CloseDownConnection(client);
+
+ /* If the client made it to the Running stage, nClients has
+ * been incremented on its behalf, so we need to decrement it
+ * now. If it hasn't gotten to Running, nClients has *not*
+ * been incremented, so *don't* decrement it.
+ */
+ if (client->clientState != ClientStateInitial &&
+ client->clientState != ClientStateAuthenticating )
+ {
+ --nClients;
+ }
+ }
+
+ if (really_close_down)
+ {
+ if (client->clientState == ClientStateRunning && nClients == 0)
+ dispatchException |= dispatchExceptionAtReset;
+
+ client->clientState = ClientStateGone;
+ if (ClientStateCallback)
+ {
+ NewClientInfoRec clientinfo;
+
+ clientinfo.client = client;
+ clientinfo.prefix = (xConnSetupPrefix *)NULL;
+ clientinfo.setup = (xConnSetup *) NULL;
+ CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
+ }
+ FreeClientResources(client);
+#ifdef XSERVER_DTRACE
+ XSERVER_CLIENT_DISCONNECT(client->index);
+#endif
+ if (client->index < nextFreeClientID)
+ nextFreeClientID = client->index;
+ clients[client->index] = NullClient;
+ SmartLastClient = NullClient;
+ dixFreePrivates(client->devPrivates);
+ xfree(client);
+
+ while (!clients[currentMaxClients-1])
+ currentMaxClients--;
+ }
+}
+
+static void
+KillAllClients(void)
+{
+ int i;
+ for (i=1; i<currentMaxClients; i++)
+ if (clients[i]) {
+ /* Make sure Retained clients are released. */
+ clients[i]->closeDownMode = DestroyAll;
+ CloseDownClient(clients[i]);
+ }
+}
+
+void InitClient(ClientPtr client, int i, pointer ospriv)
+{
+ memset(client, 0, sizeof(*client));
+ client->index = i;
+ client->clientAsMask = ((Mask)i) << CLIENTOFFSET;
+ client->closeDownMode = i ? DestroyAll : RetainPermanent;
+ client->requestVector = InitialVector;
+ client->osPrivate = ospriv;
+ QueryMinMaxKeyCodes(&client->minKC,&client->maxKC);
+ client->smart_start_tick = SmartScheduleTime;
+ client->smart_stop_tick = SmartScheduleTime;
+ client->smart_check_tick = SmartScheduleTime;
+}
+
+/************************
+ * int NextAvailableClient(ospriv)
+ *
+ * OS dependent portion can't assign client id's because of CloseDownModes.
+ * Returns NULL if there are no free clients.
+ *************************/
+
+ClientPtr NextAvailableClient(pointer ospriv)
+{
+ int i;
+ ClientPtr client;
+ xReq data;
+
+ i = nextFreeClientID;
+ if (i == MAXCLIENTS)
+ return (ClientPtr)NULL;
+ clients[i] = client = xalloc(sizeof(ClientRec));
+ if (!client)
+ return (ClientPtr)NULL;
+ InitClient(client, i, ospriv);
+ if (!InitClientResources(client))
+ {
+ xfree(client);
+ return (ClientPtr)NULL;
+ }
+ data.reqType = 1;
+ data.length = bytes_to_int32(sz_xReq + sz_xConnClientPrefix);
+ if (!InsertFakeRequest(client, (char *)&data, sz_xReq))
+ {
+ FreeClientResources(client);
+ xfree(client);
+ return (ClientPtr)NULL;
+ }
+ if (i == currentMaxClients)
+ currentMaxClients++;
+ while ((nextFreeClientID < MAXCLIENTS) && clients[nextFreeClientID])
+ nextFreeClientID++;
+ if (ClientStateCallback)
+ {
+ NewClientInfoRec clientinfo;
+
+ clientinfo.client = client;
+ clientinfo.prefix = (xConnSetupPrefix *)NULL;
+ clientinfo.setup = (xConnSetup *) NULL;
+ CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
+ }
+ return(client);
+}
+
+int
+ProcInitialConnection(ClientPtr client)
+{
+ REQUEST(xReq);
+ xConnClientPrefix *prefix;
+ int whichbyte = 1;
+
+ prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq);
+ if ((prefix->byteOrder != 'l') && (prefix->byteOrder != 'B'))
+ return (client->noClientException = -1);
+ if (((*(char *) &whichbyte) && (prefix->byteOrder == 'B')) ||
+ (!(*(char *) &whichbyte) && (prefix->byteOrder == 'l')))
+ {
+ client->swapped = TRUE;
+ SwapConnClientPrefix(prefix);
+ }
+ stuff->reqType = 2;
+ stuff->length += bytes_to_int32(prefix->nbytesAuthProto) +
+ bytes_to_int32(prefix->nbytesAuthString);
+ if (client->swapped)
+ {
+ swaps(&stuff->length, whichbyte);
+ }
+ ResetCurrentRequest(client);
+ return (client->noClientException);
+}
+
+static int
+SendConnSetup(ClientPtr client, char *reason)
+{
+ xWindowRoot *root;
+ int i;
+ int numScreens;
+ char* lConnectionInfo;
+ xConnSetupPrefix* lconnSetupPrefix;
+
+ if (reason)
+ {
+ xConnSetupPrefix csp;
+
+ csp.success = xFalse;
+ csp.lengthReason = strlen(reason);
+ csp.length = bytes_to_int32(csp.lengthReason);
+ csp.majorVersion = X_PROTOCOL;
+ csp.minorVersion = X_PROTOCOL_REVISION;
+ if (client->swapped)
+ WriteSConnSetupPrefix(client, &csp);
+ else
+ (void)WriteToClient(client, sz_xConnSetupPrefix, (char *) &csp);
+ (void)WriteToClient(client, (int)csp.lengthReason, reason);
+ return (client->noClientException = -1);
+ }
+
+ numScreens = screenInfo.numScreens;
+ lConnectionInfo = ConnectionInfo;
+ lconnSetupPrefix = &connSetupPrefix;
+
+ /* We're about to start speaking X protocol back to the client by
+ * sending the connection setup info. This means the authorization
+ * step is complete, and we can count the client as an
+ * authorized one.
+ */
+ nClients++;
+
+ client->requestVector = client->swapped ? SwappedProcVector : ProcVector;
+ client->sequence = 0;
+ ((xConnSetup *)lConnectionInfo)->ridBase = client->clientAsMask;
+ ((xConnSetup *)lConnectionInfo)->ridMask = RESOURCE_ID_MASK;
+#ifdef MATCH_CLIENT_ENDIAN
+ ((xConnSetup *)lConnectionInfo)->imageByteOrder = ClientOrder (client);
+ ((xConnSetup *)lConnectionInfo)->bitmapBitOrder = ClientOrder (client);
+#endif
+ /* fill in the "currentInputMask" */
+ root = (xWindowRoot *)(lConnectionInfo + connBlockScreenStart);
+#ifdef PANORAMIX
+ if (noPanoramiXExtension)
+ numScreens = screenInfo.numScreens;
+ else
+ numScreens = ((xConnSetup *)ConnectionInfo)->numRoots;
+#endif
+
+ for (i=0; i<numScreens; i++)
+ {
+ unsigned int j;
+ xDepth *pDepth;
+
+ root->currentInputMask = WindowTable[i]->eventMask |
+ wOtherEventMasks (WindowTable[i]);
+ pDepth = (xDepth *)(root + 1);
+ for (j = 0; j < root->nDepths; j++)
+ {
+ pDepth = (xDepth *)(((char *)(pDepth + 1)) +
+ pDepth->nVisuals * sizeof(xVisualType));
+ }
+ root = (xWindowRoot *)pDepth;
+ }
+
+ if (client->swapped)
+ {
+ WriteSConnSetupPrefix(client, lconnSetupPrefix);
+ WriteSConnectionInfo(client,
+ (unsigned long)(lconnSetupPrefix->length << 2),
+ lConnectionInfo);
+ }
+ else
+ {
+ (void)WriteToClient(client, sizeof(xConnSetupPrefix),
+ (char *) lconnSetupPrefix);
+ (void)WriteToClient(client, (int)(lconnSetupPrefix->length << 2),
+ lConnectionInfo);
+ }
+ client->clientState = ClientStateRunning;
+ if (ClientStateCallback)
+ {
+ NewClientInfoRec clientinfo;
+
+ clientinfo.client = client;
+ clientinfo.prefix = lconnSetupPrefix;
+ clientinfo.setup = (xConnSetup *)lConnectionInfo;
+ CallCallbacks((&ClientStateCallback), (pointer)&clientinfo);
+ }
+ return (client->noClientException);
+}
+
+int
+ProcEstablishConnection(ClientPtr client)
+{
+ char *reason, *auth_proto, *auth_string;
+ xConnClientPrefix *prefix;
+ REQUEST(xReq);
+
+ prefix = (xConnClientPrefix *)((char *)stuff + sz_xReq);
+ auth_proto = (char *)prefix + sz_xConnClientPrefix;
+ auth_string = auth_proto + pad_to_int32(prefix->nbytesAuthProto);
+ if ((prefix->majorVersion != X_PROTOCOL) ||
+ (prefix->minorVersion != X_PROTOCOL_REVISION))
+ reason = "Protocol version mismatch";
+ else
+ reason = ClientAuthorized(client,
+ (unsigned short)prefix->nbytesAuthProto,
+ auth_proto,
+ (unsigned short)prefix->nbytesAuthString,
+ auth_string);
+ /*
+ * If Kerberos is being used for this client, the clientState
+ * will be set to ClientStateAuthenticating at this point.
+ * More messages need to be exchanged among the X server, Kerberos
+ * server, and client to figure out if everyone is authorized.
+ * So we don't want to send the connection setup info yet, since
+ * the auth step isn't really done.
+ */
+ if (client->clientState == ClientStateCheckingSecurity)
+ client->clientState = ClientStateCheckedSecurity;
+ else if (client->clientState != ClientStateAuthenticating)
+ return(SendConnSetup(client, reason));
+ return(client->noClientException);
+}
+
+void
+SendErrorToClient(ClientPtr client, unsigned majorCode, unsigned minorCode,
+ XID resId, int errorCode)
+{
+ xError rep;
+
+ memset(&rep, 0, sizeof(xError));
+ rep.type = X_Error;
+ rep.sequenceNumber = client->sequence;
+ rep.errorCode = errorCode;
+ rep.majorCode = majorCode;
+ rep.minorCode = minorCode;
+ rep.resourceID = resId;
+
+ WriteEventsToClient (client, 1, (xEvent *)&rep);
+}
+
+void
+MarkClientException(ClientPtr client)
+{
+ client->noClientException = -1;
+}
+
+/*
+ * This array encodes the answer to the question "what is the log base 2
+ * of the number of pixels that fit in a scanline pad unit?"
+ * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
+ */
+static int answer[6][4] = {
+ /* pad pad pad pad*/
+ /* 8 16 32 64 */
+
+ { 3, 4, 5 , 6 }, /* 1 bit per pixel */
+ { 1, 2, 3 , 4 }, /* 4 bits per pixel */
+ { 0, 1, 2 , 3 }, /* 8 bits per pixel */
+ { ~0, 0, 1 , 2 }, /* 16 bits per pixel */
+ { ~0, ~0, 0 , 1 }, /* 24 bits per pixel */
+ { ~0, ~0, 0 , 1 } /* 32 bits per pixel */
+};
+
+/*
+ * This array gives the answer to the question "what is the first index for
+ * the answer array above given the number of bits per pixel?"
+ * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
+ */
+static int indexForBitsPerPixel[ 33 ] = {
+ ~0, 0, ~0, ~0, /* 1 bit per pixel */
+ 1, ~0, ~0, ~0, /* 4 bits per pixel */
+ 2, ~0, ~0, ~0, /* 8 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 3, ~0, ~0, ~0, /* 16 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 4, ~0, ~0, ~0, /* 24 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 5 /* 32 bits per pixel */
+};
+
+/*
+ * This array gives the bytesperPixel value for cases where the number
+ * of bits per pixel is a multiple of 8 but not a power of 2.
+ */
+static int answerBytesPerPixel[ 33 ] = {
+ ~0, 0, ~0, ~0, /* 1 bit per pixel */
+ 0, ~0, ~0, ~0, /* 4 bits per pixel */
+ 0, ~0, ~0, ~0, /* 8 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 0, ~0, ~0, ~0, /* 16 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 3, ~0, ~0, ~0, /* 24 bits per pixel */
+ ~0,~0, ~0, ~0,
+ 0 /* 32 bits per pixel */
+};
+
+/*
+ * This array gives the answer to the question "what is the second index for
+ * the answer array above given the number of bits per scanline pad unit?"
+ * Note that ~0 is an invalid entry (mostly for the benefit of the reader).
+ */
+static int indexForScanlinePad[ 65 ] = {
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ 0, ~0, ~0, ~0, /* 8 bits per scanline pad unit */
+ ~0, ~0, ~0, ~0,
+ 1, ~0, ~0, ~0, /* 16 bits per scanline pad unit */
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ 2, ~0, ~0, ~0, /* 32 bits per scanline pad unit */
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ ~0, ~0, ~0, ~0,
+ 3 /* 64 bits per scanline pad unit */
+};
+
+/*
+ grow the array of screenRecs if necessary.
+ call the device-supplied initialization procedure
+with its screen number, a pointer to its ScreenRec, argc, and argv.
+ return the number of successfully installed screens.
+
+*/
+
+int
+AddScreen(
+ Bool (* pfnInit)(
+ int /*index*/,
+ ScreenPtr /*pScreen*/,
+ int /*argc*/,
+ char ** /*argv*/
+ ),
+ int argc,
+ char **argv)
+{
+
+ int i;
+ int scanlinepad, format, depth, bitsPerPixel, j, k;
+ ScreenPtr pScreen;
+
+ i = screenInfo.numScreens;
+ if (i == MAXSCREENS)
+ return -1;
+
+ pScreen = (ScreenPtr) xcalloc(1, sizeof(ScreenRec));
+ if (!pScreen)
+ return -1;
+
+ pScreen->devPrivates = NULL;
+ pScreen->myNum = i;
+ pScreen->totalPixmapSize = BitmapBytePad(sizeof(PixmapRec)*8);
+ pScreen->ClipNotify = 0; /* for R4 ddx compatibility */
+ pScreen->CreateScreenResources = 0;
+
+ /*
+ * This loop gets run once for every Screen that gets added,
+ * but thats ok. If the ddx layer initializes the formats
+ * one at a time calling AddScreen() after each, then each
+ * iteration will make it a little more accurate. Worst case
+ * we do this loop N * numPixmapFormats where N is # of screens.
+ * Anyway, this must be called after InitOutput and before the
+ * screen init routine is called.
+ */
+ for (format=0; format<screenInfo.numPixmapFormats; format++)
+ {
+ depth = screenInfo.formats[format].depth;
+ bitsPerPixel = screenInfo.formats[format].bitsPerPixel;
+ scanlinepad = screenInfo.formats[format].scanlinePad;
+ j = indexForBitsPerPixel[ bitsPerPixel ];
+ k = indexForScanlinePad[ scanlinepad ];
+ PixmapWidthPaddingInfo[ depth ].padPixelsLog2 = answer[j][k];
+ PixmapWidthPaddingInfo[ depth ].padRoundUp =
+ (scanlinepad/bitsPerPixel) - 1;
+ j = indexForBitsPerPixel[ 8 ]; /* bits per byte */
+ PixmapWidthPaddingInfo[ depth ].padBytesLog2 = answer[j][k];
+ PixmapWidthPaddingInfo[ depth ].bitsPerPixel = bitsPerPixel;
+ if (answerBytesPerPixel[bitsPerPixel])
+ {
+ PixmapWidthPaddingInfo[ depth ].notPower2 = 1;
+ PixmapWidthPaddingInfo[ depth ].bytesPerPixel =
+ answerBytesPerPixel[bitsPerPixel];
+ }
+ else
+ {
+ PixmapWidthPaddingInfo[ depth ].notPower2 = 0;
+ }
+ }
+
+ /* This is where screen specific stuff gets initialized. Load the
+ screen structure, call the hardware, whatever.
+ This is also where the default colormap should be allocated and
+ also pixel values for blackPixel, whitePixel, and the cursor
+ Note that InitScreen is NOT allowed to modify argc, argv, or
+ any of the strings pointed to by argv. They may be passed to
+ multiple screens.
+ */
+ pScreen->rgf = ~0L; /* there are no scratch GCs yet*/
+ WindowTable[i] = NullWindow;
+ screenInfo.screens[i] = pScreen;
+ screenInfo.numScreens++;
+ if (!(*pfnInit)(i, pScreen, argc, argv))
+ {
+ dixFreePrivates(pScreen->devPrivates);
+ xfree(pScreen);
+ screenInfo.numScreens--;
+ return -1;
+ }
+ return i;
+}
diff --git a/xorg-server/dix/dixfonts.c b/xorg-server/dix/dixfonts.c
index 329318d5d..77c166ee5 100644
--- a/xorg-server/dix/dixfonts.c
+++ b/xorg-server/dix/dixfonts.c
@@ -1,2102 +1,2104 @@
-/************************************************************************
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-************************************************************************/
-/* The panoramix components contained the following notice */
-/*
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xmd.h>
-#include <X11/Xproto.h>
-#include "scrnintstr.h"
-#include "resource.h"
-#include "dixstruct.h"
-#include "cursorstr.h"
-#include "misc.h"
-#include "opaque.h"
-#include "dixfontstr.h"
-#include "closestr.h"
-#include "dixfont.h"
-#include "xace.h"
-
-#ifdef DEBUG
-#include <stdio.h>
-#endif
-
-#ifdef XF86BIGFONT
-#define _XF86BIGFONT_SERVER_
-#include <X11/extensions/xf86bigfont.h>
-#endif
-
-#define QUERYCHARINFO(pci, pr) *(pr) = (pci)->metrics
-
-extern pointer fosNaturalParams;
-extern FontPtr defaultFont;
-
-static FontPathElementPtr *font_path_elements = (FontPathElementPtr *) 0;
-static int num_fpes = 0;
-static FPEFunctions *fpe_functions = (FPEFunctions *) 0;
-static int num_fpe_types = 0;
-
-static unsigned char *font_path_string;
-
-static int num_slept_fpes = 0;
-static int size_slept_fpes = 0;
-static FontPathElementPtr *slept_fpes = (FontPathElementPtr *) 0;
-static FontPatternCachePtr patternCache;
-
-static int
-FontToXError(int err)
-{
- switch (err) {
- case Successful:
- return Success;
- case AllocError:
- return BadAlloc;
- case BadFontName:
- return BadName;
- case BadFontPath:
- case BadFontFormat: /* is there something better? */
- case BadCharRange:
- return BadValue;
- default:
- return err;
- }
-}
-
-static int
-LoadGlyphs(ClientPtr client, FontPtr pfont, unsigned nchars, int item_size,
- unsigned char *data)
-{
- if (fpe_functions[pfont->fpe->type].load_glyphs)
- return (*fpe_functions[pfont->fpe->type].load_glyphs)
- (client, pfont, 0, nchars, item_size, data);
- else
- return Successful;
-}
-
-/*
- * adding RT_FONT prevents conflict with default cursor font
- */
-Bool
-SetDefaultFont(char *defaultfontname)
-{
- int err;
- FontPtr pf;
- XID fid;
-
- fid = FakeClientID(0);
- err = OpenFont(serverClient, fid, FontLoadAll | FontOpenSync,
- (unsigned) strlen(defaultfontname), defaultfontname);
- if (err != Success)
- return FALSE;
- err = dixLookupResourceByType((pointer *)&pf, fid, RT_FONT, serverClient,
- DixReadAccess);
- if (err != Success)
- return FALSE;
- defaultFont = pf;
- return TRUE;
-}
-
-/*
- * note that the font wakeup queue is not refcounted. this is because
- * an fpe needs to be added when it's inited, and removed when it's finally
- * freed, in order to handle any data that isn't requested, like FS events.
- *
- * since the only thing that should call these routines is the renderer's
- * init_fpe() and free_fpe(), there shouldn't be any problem in using
- * freed data.
- */
-void
-QueueFontWakeup(FontPathElementPtr fpe)
-{
- int i;
- FontPathElementPtr *new;
-
- for (i = 0; i < num_slept_fpes; i++) {
- if (slept_fpes[i] == fpe) {
- return;
- }
- }
- if (num_slept_fpes == size_slept_fpes) {
- new = (FontPathElementPtr *)
- xrealloc(slept_fpes,
- sizeof(FontPathElementPtr) * (size_slept_fpes + 4));
- if (!new)
- return;
- slept_fpes = new;
- size_slept_fpes += 4;
- }
- slept_fpes[num_slept_fpes] = fpe;
- num_slept_fpes++;
-}
-
-void
-RemoveFontWakeup(FontPathElementPtr fpe)
-{
- int i,
- j;
-
- for (i = 0; i < num_slept_fpes; i++) {
- if (slept_fpes[i] == fpe) {
- for (j = i; j < num_slept_fpes; j++) {
- slept_fpes[j] = slept_fpes[j + 1];
- }
- num_slept_fpes--;
- return;
- }
- }
-}
-
-void
-FontWakeup(pointer data, int count, pointer LastSelectMask)
-{
- int i;
- FontPathElementPtr fpe;
-
- if (count < 0)
- return;
- /* wake up any fpe's that may be waiting for information */
- for (i = 0; i < num_slept_fpes; i++) {
- fpe = slept_fpes[i];
- (void) (*fpe_functions[fpe->type].wakeup_fpe) (fpe, LastSelectMask);
- }
-}
-
-/* XXX -- these two funcs may want to be broken into macros */
-static void
-UseFPE(FontPathElementPtr fpe)
-{
- fpe->refcount++;
-}
-
-static void
-FreeFPE (FontPathElementPtr fpe)
-{
- fpe->refcount--;
- if (fpe->refcount == 0) {
- (*fpe_functions[fpe->type].free_fpe) (fpe);
- xfree(fpe->name);
- xfree(fpe);
- }
-}
-
-static Bool
-doOpenFont(ClientPtr client, OFclosurePtr c)
-{
- FontPtr pfont = NullFont;
- FontPathElementPtr fpe = NULL;
- ScreenPtr pScr;
- int err = Successful;
- int i;
- char *alias,
- *newname;
- int newlen;
- int aliascount = 20;
- /*
- * Decide at runtime what FontFormat to use.
- */
- Mask FontFormat =
-
- ((screenInfo.imageByteOrder == LSBFirst) ?
- BitmapFormatByteOrderLSB : BitmapFormatByteOrderMSB) |
-
- ((screenInfo.bitmapBitOrder == LSBFirst) ?
- BitmapFormatBitOrderLSB : BitmapFormatBitOrderMSB) |
-
- BitmapFormatImageRectMin |
-
-#if GLYPHPADBYTES == 1
- BitmapFormatScanlinePad8 |
-#endif
-
-#if GLYPHPADBYTES == 2
- BitmapFormatScanlinePad16 |
-#endif
-
-#if GLYPHPADBYTES == 4
- BitmapFormatScanlinePad32 |
-#endif
-
-#if GLYPHPADBYTES == 8
- BitmapFormatScanlinePad64 |
-#endif
-
- BitmapFormatScanlineUnit8;
-
- if (client->clientGone)
- {
- if (c->current_fpe < c->num_fpes)
- {
- fpe = c->fpe_list[c->current_fpe];
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- }
- err = Successful;
- goto bail;
- }
- while (c->current_fpe < c->num_fpes) {
- fpe = c->fpe_list[c->current_fpe];
- err = (*fpe_functions[fpe->type].open_font)
- ((pointer) client, fpe, c->flags,
- c->fontname, c->fnamelen, FontFormat,
- BitmapFormatMaskByte |
- BitmapFormatMaskBit |
- BitmapFormatMaskImageRectangle |
- BitmapFormatMaskScanLinePad |
- BitmapFormatMaskScanLineUnit,
- c->fontid, &pfont, &alias,
- c->non_cachable_font && c->non_cachable_font->fpe == fpe ?
- c->non_cachable_font :
- (FontPtr)0);
-
- if (err == FontNameAlias && alias) {
- newlen = strlen(alias);
- newname = (char *) xrealloc(c->fontname, newlen);
- if (!newname) {
- err = AllocError;
- break;
- }
- memmove(newname, alias, newlen);
- c->fontname = newname;
- c->fnamelen = newlen;
- c->current_fpe = 0;
- if (--aliascount <= 0) {
- /* We've tried resolving this alias 20 times, we're
- * probably stuck in an infinite loop of aliases pointing
- * to each other - time to take emergency exit!
- */
- err = BadImplementation;
- break;
- }
- continue;
- }
- if (err == BadFontName) {
- c->current_fpe++;
- continue;
- }
- if (err == Suspended) {
- if (!c->slept) {
- c->slept = TRUE;
- ClientSleep(client, (ClientSleepProcPtr)doOpenFont, (pointer) c);
- }
- return TRUE;
- }
- break;
- }
-
- if (err != Successful)
- goto bail;
- if (!pfont) {
- err = BadFontName;
- goto bail;
- }
- /* check values for firstCol, lastCol, firstRow, and lastRow */
- if (pfont->info.firstCol > pfont->info.lastCol ||
- pfont->info.firstRow > pfont->info.lastRow ||
- pfont->info.lastCol - pfont->info.firstCol > 255) {
- err = AllocError;
- goto bail;
- }
- if (!pfont->fpe)
- pfont->fpe = fpe;
- pfont->refcnt++;
- if (pfont->refcnt == 1) {
- UseFPE(pfont->fpe);
- for (i = 0; i < screenInfo.numScreens; i++) {
- pScr = screenInfo.screens[i];
- if (pScr->RealizeFont)
- {
- if (!(*pScr->RealizeFont) (pScr, pfont))
- {
- CloseFont (pfont, (Font) 0);
- err = AllocError;
- goto bail;
- }
- }
- }
- }
- if (!AddResource(c->fontid, RT_FONT, (pointer) pfont)) {
- err = AllocError;
- goto bail;
- }
- if (patternCache && pfont != c->non_cachable_font)
- CacheFontPattern(patternCache, c->origFontName, c->origFontNameLen,
- pfont);
-bail:
- if (err != Successful && c->client != serverClient) {
- SendErrorToClient(c->client, X_OpenFont, 0,
- c->fontid, FontToXError(err));
- }
- if (c->slept)
- ClientWakeup(c->client);
- for (i = 0; i < c->num_fpes; i++) {
- FreeFPE(c->fpe_list[i]);
- }
- xfree(c->fpe_list);
- xfree(c->fontname);
- xfree(c);
- return TRUE;
-}
-
-int
-OpenFont(ClientPtr client, XID fid, Mask flags, unsigned lenfname, char *pfontname)
-{
- OFclosurePtr c;
- int i;
- FontPtr cached = (FontPtr)0;
-
-#ifdef FONTDEBUG
- char *f;
- f = xalloc(lenfname + 1);
- memmove(f, pfontname, lenfname);
- f[lenfname] = '\0';
- ErrorF("[dix] OpenFont: fontname is \"%s\"\n", f);
- xfree(f);
-#endif
- if (!lenfname || lenfname > XLFDMAXFONTNAMELEN)
- return BadName;
- if (patternCache)
- {
-
- /*
- ** Check name cache. If we find a cached version of this font that
- ** is cachable, immediately satisfy the request with it. If we find
- ** a cached version of this font that is non-cachable, we do not
- ** satisfy the request with it. Instead, we pass the FontPtr to the
- ** FPE's open_font code (the fontfile FPE in turn passes the
- ** information to the rasterizer; the fserve FPE ignores it).
- **
- ** Presumably, the font is marked non-cachable because the FPE has
- ** put some licensing restrictions on it. If the FPE, using
- ** whatever logic it relies on, determines that it is willing to
- ** share this existing font with the client, then it has the option
- ** to return the FontPtr we passed it as the newly-opened font.
- ** This allows the FPE to exercise its licensing logic without
- ** having to create another instance of a font that already exists.
- */
-
- cached = FindCachedFontPattern(patternCache, pfontname, lenfname);
- if (cached && cached->info.cachable)
- {
- if (!AddResource(fid, RT_FONT, (pointer) cached))
- return BadAlloc;
- cached->refcnt++;
- return Success;
- }
- }
- c = xalloc(sizeof(OFclosureRec));
- if (!c)
- return BadAlloc;
- c->fontname = xalloc(lenfname);
- c->origFontName = pfontname;
- c->origFontNameLen = lenfname;
- if (!c->fontname) {
- xfree(c);
- return BadAlloc;
- }
- /*
- * copy the current FPE list, so that if it gets changed by another client
- * while we're blocking, the request still appears atomic
- */
- c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
- if (!c->fpe_list) {
- xfree(c->fontname);
- xfree(c);
- return BadAlloc;
- }
- memmove(c->fontname, pfontname, lenfname);
- for (i = 0; i < num_fpes; i++) {
- c->fpe_list[i] = font_path_elements[i];
- UseFPE(c->fpe_list[i]);
- }
- c->client = client;
- c->fontid = fid;
- c->current_fpe = 0;
- c->num_fpes = num_fpes;
- c->fnamelen = lenfname;
- c->slept = FALSE;
- c->flags = flags;
- c->non_cachable_font = cached;
-
- (void) doOpenFont(client, c);
- return Success;
-}
-
-/**
- * Decrement font's ref count, and free storage if ref count equals zero
- *
- * \param value must conform to DeleteType
- */
-int
-CloseFont(pointer value, XID fid)
-{
- int nscr;
- ScreenPtr pscr;
- FontPathElementPtr fpe;
- FontPtr pfont = (FontPtr)value;
-
- if (pfont == NullFont)
- return (Success);
- if (--pfont->refcnt == 0) {
- if (patternCache)
- RemoveCachedFontPattern (patternCache, pfont);
- /*
- * since the last reference is gone, ask each screen to free any
- * storage it may have allocated locally for it.
- */
- for (nscr = 0; nscr < screenInfo.numScreens; nscr++) {
- pscr = screenInfo.screens[nscr];
- if (pscr->UnrealizeFont)
- (*pscr->UnrealizeFont) (pscr, pfont);
- }
- if (pfont == defaultFont)
- defaultFont = NULL;
-#ifdef XF86BIGFONT
- XF86BigfontFreeFontShm(pfont);
-#endif
- fpe = pfont->fpe;
- (*fpe_functions[fpe->type].close_font) (fpe, pfont);
- FreeFPE(fpe);
- }
- return (Success);
-}
-
-
-/***====================================================================***/
-
-/**
- * Sets up pReply as the correct QueryFontReply for pFont with the first
- * nProtoCCIStructs char infos.
- *
- * \param pReply caller must allocate this storage
- */
-void
-QueryFont(FontPtr pFont, xQueryFontReply *pReply, int nProtoCCIStructs)
-{
- FontPropPtr pFP;
- int r,
- c,
- i;
- xFontProp *prFP;
- xCharInfo *prCI;
- xCharInfo *charInfos[256];
- unsigned char chars[512];
- int ninfos;
- unsigned long ncols;
- unsigned long count;
-
- /* pr->length set in dispatch */
- pReply->minCharOrByte2 = pFont->info.firstCol;
- pReply->defaultChar = pFont->info.defaultCh;
- pReply->maxCharOrByte2 = pFont->info.lastCol;
- pReply->drawDirection = pFont->info.drawDirection;
- pReply->allCharsExist = pFont->info.allExist;
- pReply->minByte1 = pFont->info.firstRow;
- pReply->maxByte1 = pFont->info.lastRow;
- pReply->fontAscent = pFont->info.fontAscent;
- pReply->fontDescent = pFont->info.fontDescent;
-
- pReply->minBounds = pFont->info.ink_minbounds;
- pReply->maxBounds = pFont->info.ink_maxbounds;
-
- pReply->nFontProps = pFont->info.nprops;
- pReply->nCharInfos = nProtoCCIStructs;
-
- for (i = 0, pFP = pFont->info.props, prFP = (xFontProp *) (&pReply[1]);
- i < pFont->info.nprops;
- i++, pFP++, prFP++) {
- prFP->name = pFP->name;
- prFP->value = pFP->value;
- }
-
- ninfos = 0;
- ncols = (unsigned long) (pFont->info.lastCol - pFont->info.firstCol + 1);
- prCI = (xCharInfo *) (prFP);
- for (r = pFont->info.firstRow;
- ninfos < nProtoCCIStructs && r <= (int)pFont->info.lastRow;
- r++) {
- i = 0;
- for (c = pFont->info.firstCol; c <= (int)pFont->info.lastCol; c++) {
- chars[i++] = r;
- chars[i++] = c;
- }
- (*pFont->get_metrics) (pFont, ncols, chars,
- TwoD16Bit, &count, charInfos);
- i = 0;
- for (i = 0; i < (int) count && ninfos < nProtoCCIStructs; i++) {
- *prCI = *charInfos[i];
- prCI++;
- ninfos++;
- }
- }
- return;
-}
-
-static Bool
-doListFontsAndAliases(ClientPtr client, LFclosurePtr c)
-{
- FontPathElementPtr fpe;
- int err = Successful;
- FontNamesPtr names = NULL;
- char *name, *resolved=NULL;
- int namelen, resolvedlen;
- int nnames;
- int stringLens;
- int i;
- xListFontsReply reply;
- char *bufptr;
- char *bufferStart;
- int aliascount = 0;
-
- if (client->clientGone)
- {
- if (c->current.current_fpe < c->num_fpes)
- {
- fpe = c->fpe_list[c->current.current_fpe];
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- }
- err = Successful;
- goto bail;
- }
-
- if (!c->current.patlen)
- goto finish;
-
- while (c->current.current_fpe < c->num_fpes) {
- fpe = c->fpe_list[c->current.current_fpe];
- err = Successful;
-
- if (!fpe_functions[fpe->type].start_list_fonts_and_aliases)
- {
- /* This FPE doesn't support/require list_fonts_and_aliases */
-
- err = (*fpe_functions[fpe->type].list_fonts)
- ((pointer) c->client, fpe, c->current.pattern,
- c->current.patlen, c->current.max_names - c->names->nnames,
- c->names);
-
- if (err == Suspended) {
- if (!c->slept) {
- c->slept = TRUE;
- ClientSleep(client,
- (ClientSleepProcPtr)doListFontsAndAliases,
- (pointer) c);
- }
- return TRUE;
- }
-
- err = BadFontName;
- }
- else
- {
- /* Start of list_fonts_and_aliases functionality. Modeled
- after list_fonts_with_info in that it resolves aliases,
- except that the information collected from FPEs is just
- names, not font info. Each list_next_font_or_alias()
- returns either a name into name/namelen or an alias into
- name/namelen and its target name into resolved/resolvedlen.
- The code at this level then resolves the alias by polling
- the FPEs. */
-
- if (!c->current.list_started) {
- err = (*fpe_functions[fpe->type].start_list_fonts_and_aliases)
- ((pointer) c->client, fpe, c->current.pattern,
- c->current.patlen, c->current.max_names - c->names->nnames,
- &c->current.private);
- if (err == Suspended) {
- if (!c->slept) {
- ClientSleep(client,
- (ClientSleepProcPtr)doListFontsAndAliases,
- (pointer) c);
- c->slept = TRUE;
- }
- return TRUE;
- }
- if (err == Successful)
- c->current.list_started = TRUE;
- }
- if (err == Successful) {
- char *tmpname;
- name = 0;
- err = (*fpe_functions[fpe->type].list_next_font_or_alias)
- ((pointer) c->client, fpe, &name, &namelen, &tmpname,
- &resolvedlen, c->current.private);
- if (err == Suspended) {
- if (!c->slept) {
- ClientSleep(client,
- (ClientSleepProcPtr)doListFontsAndAliases,
- (pointer) c);
- c->slept = TRUE;
- }
- return TRUE;
- }
- if (err == FontNameAlias) {
- if (resolved) xfree(resolved);
- resolved = xalloc(resolvedlen + 1);
- if (resolved)
- memmove(resolved, tmpname, resolvedlen + 1);
- }
- }
-
- if (err == Successful)
- {
- if (c->haveSaved)
- {
- if (c->savedName)
- (void)AddFontNamesName(c->names, c->savedName,
- c->savedNameLen);
- }
- else
- (void)AddFontNamesName(c->names, name, namelen);
- }
-
- /*
- * When we get an alias back, save our state and reset back to
- * the start of the FPE looking for the specified name. As
- * soon as a real font is found for the alias, pop back to the
- * old state
- */
- else if (err == FontNameAlias) {
- char tmp_pattern[XLFDMAXFONTNAMELEN];
- /*
- * when an alias recurses, we need to give
- * the last FPE a chance to clean up; so we call
- * it again, and assume that the error returned
- * is BadFontName, indicating the alias resolution
- * is complete.
- */
- memmove(tmp_pattern, resolved, resolvedlen);
- if (c->haveSaved)
- {
- char *tmpname;
- int tmpnamelen;
-
- tmpname = 0;
- (void) (*fpe_functions[fpe->type].list_next_font_or_alias)
- ((pointer) c->client, fpe, &tmpname, &tmpnamelen,
- &tmpname, &tmpnamelen, c->current.private);
- if (--aliascount <= 0)
- {
- err = BadFontName;
- goto ContBadFontName;
- }
- }
- else
- {
- c->saved = c->current;
- c->haveSaved = TRUE;
- if (c->savedName)
- xfree(c->savedName);
- c->savedName = xalloc(namelen + 1);
- if (c->savedName)
- memmove(c->savedName, name, namelen + 1);
- c->savedNameLen = namelen;
- aliascount = 20;
- }
- memmove(c->current.pattern, tmp_pattern, resolvedlen);
- c->current.patlen = resolvedlen;
- c->current.max_names = c->names->nnames + 1;
- c->current.current_fpe = -1;
- c->current.private = 0;
- err = BadFontName;
- }
- }
- /*
- * At the end of this FPE, step to the next. If we've finished
- * processing an alias, pop state back. If we've collected enough
- * font names, quit.
- */
- if (err == BadFontName) {
- ContBadFontName: ;
- c->current.list_started = FALSE;
- c->current.current_fpe++;
- err = Successful;
- if (c->haveSaved)
- {
- if (c->names->nnames == c->current.max_names ||
- c->current.current_fpe == c->num_fpes) {
- c->haveSaved = FALSE;
- c->current = c->saved;
- /* Give the saved namelist a chance to clean itself up */
- continue;
- }
- }
- if (c->names->nnames == c->current.max_names)
- break;
- }
- }
-
- /*
- * send the reply
- */
- if (err != Successful) {
- SendErrorToClient(client, X_ListFonts, 0, 0, FontToXError(err));
- goto bail;
- }
-
-finish:
-
- names = c->names;
- nnames = names->nnames;
- client = c->client;
- stringLens = 0;
- for (i = 0; i < nnames; i++)
- stringLens += (names->length[i] <= 255) ? names->length[i] : 0;
-
- memset(&reply, 0, sizeof(xListFontsReply));
- reply.type = X_Reply;
- reply.length = bytes_to_int32(stringLens + nnames);
- reply.nFonts = nnames;
- reply.sequenceNumber = client->sequence;
-
- bufptr = bufferStart = xalloc(reply.length << 2);
-
- if (!bufptr && reply.length) {
- SendErrorToClient(client, X_ListFonts, 0, 0, BadAlloc);
- goto bail;
- }
- /*
- * since WriteToClient long word aligns things, copy to temp buffer and
- * write all at once
- */
- for (i = 0; i < nnames; i++) {
- if (names->length[i] > 255)
- reply.nFonts--;
- else
- {
- *bufptr++ = names->length[i];
- memmove( bufptr, names->names[i], names->length[i]);
- bufptr += names->length[i];
- }
- }
- nnames = reply.nFonts;
- reply.length = bytes_to_int32(stringLens + nnames);
- client->pSwapReplyFunc = ReplySwapVector[X_ListFonts];
- WriteSwappedDataToClient(client, sizeof(xListFontsReply), &reply);
- (void) WriteToClient(client, stringLens + nnames, bufferStart);
- xfree(bufferStart);
-
-bail:
- if (c->slept)
- ClientWakeup(client);
- for (i = 0; i < c->num_fpes; i++)
- FreeFPE(c->fpe_list[i]);
- xfree(c->fpe_list);
- if (c->savedName) xfree(c->savedName);
- FreeFontNames(names);
- xfree(c);
- if (resolved) xfree(resolved);
- return TRUE;
-}
-
-int
-ListFonts(ClientPtr client, unsigned char *pattern, unsigned length,
- unsigned max_names)
-{
- int i;
- LFclosurePtr c;
-
- /*
- * The right error to return here would be BadName, however the
- * specification does not allow for a Name error on this request.
- * Perhaps a better solution would be to return a nil list, i.e.
- * a list containing zero fontnames.
- */
- if (length > XLFDMAXFONTNAMELEN)
- return BadAlloc;
-
- i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
- if (i != Success)
- return i;
-
- if (!(c = xalloc(sizeof *c)))
- return BadAlloc;
- c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
- if (!c->fpe_list) {
- xfree(c);
- return BadAlloc;
- }
- c->names = MakeFontNamesRecord(max_names < 100 ? max_names : 100);
- if (!c->names)
- {
- xfree(c->fpe_list);
- xfree(c);
- return BadAlloc;
- }
- memmove( c->current.pattern, pattern, length);
- for (i = 0; i < num_fpes; i++) {
- c->fpe_list[i] = font_path_elements[i];
- UseFPE(c->fpe_list[i]);
- }
- c->client = client;
- c->num_fpes = num_fpes;
- c->current.patlen = length;
- c->current.current_fpe = 0;
- c->current.max_names = max_names;
- c->current.list_started = FALSE;
- c->current.private = 0;
- c->haveSaved = FALSE;
- c->slept = FALSE;
- c->savedName = 0;
- doListFontsAndAliases(client, c);
- return Success;
-}
-
-int
-doListFontsWithInfo(ClientPtr client, LFWIclosurePtr c)
-{
- FontPathElementPtr fpe;
- int err = Successful;
- char *name;
- int namelen;
- int numFonts;
- FontInfoRec fontInfo,
- *pFontInfo;
- xListFontsWithInfoReply *reply;
- int length;
- xFontProp *pFP;
- int i;
- int aliascount = 0;
- xListFontsWithInfoReply finalReply;
-
- if (client->clientGone)
- {
- if (c->current.current_fpe < c->num_fpes)
- {
- fpe = c->fpe_list[c->current.current_fpe];
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- }
- err = Successful;
- goto bail;
- }
- client->pSwapReplyFunc = ReplySwapVector[X_ListFontsWithInfo];
- if (!c->current.patlen)
- goto finish;
- while (c->current.current_fpe < c->num_fpes)
- {
- fpe = c->fpe_list[c->current.current_fpe];
- err = Successful;
- if (!c->current.list_started)
- {
- err = (*fpe_functions[fpe->type].start_list_fonts_with_info)
- (client, fpe, c->current.pattern, c->current.patlen,
- c->current.max_names, &c->current.private);
- if (err == Suspended)
- {
- if (!c->slept)
- {
- ClientSleep(client, (ClientSleepProcPtr)doListFontsWithInfo, c);
- c->slept = TRUE;
- }
- return TRUE;
- }
- if (err == Successful)
- c->current.list_started = TRUE;
- }
- if (err == Successful)
- {
- name = 0;
- pFontInfo = &fontInfo;
- err = (*fpe_functions[fpe->type].list_next_font_with_info)
- (client, fpe, &name, &namelen, &pFontInfo,
- &numFonts, c->current.private);
- if (err == Suspended)
- {
- if (!c->slept)
- {
- ClientSleep(client,
- (ClientSleepProcPtr)doListFontsWithInfo,
- c);
- c->slept = TRUE;
- }
- return TRUE;
- }
- }
- /*
- * When we get an alias back, save our state and reset back to the
- * start of the FPE looking for the specified name. As soon as a real
- * font is found for the alias, pop back to the old state
- */
- if (err == FontNameAlias)
- {
- /*
- * when an alias recurses, we need to give
- * the last FPE a chance to clean up; so we call
- * it again, and assume that the error returned
- * is BadFontName, indicating the alias resolution
- * is complete.
- */
- if (c->haveSaved)
- {
- char *tmpname;
- int tmpnamelen;
- FontInfoPtr tmpFontInfo;
-
- tmpname = 0;
- tmpFontInfo = &fontInfo;
- (void) (*fpe_functions[fpe->type].list_next_font_with_info)
- (client, fpe, &tmpname, &tmpnamelen, &tmpFontInfo,
- &numFonts, c->current.private);
- if (--aliascount <= 0)
- {
- err = BadFontName;
- goto ContBadFontName;
- }
- }
- else
- {
- c->saved = c->current;
- c->haveSaved = TRUE;
- c->savedNumFonts = numFonts;
- if (c->savedName)
- xfree(c->savedName);
- c->savedName = xalloc(namelen + 1);
- if (c->savedName)
- memmove(c->savedName, name, namelen + 1);
- aliascount = 20;
- }
- memmove(c->current.pattern, name, namelen);
- c->current.patlen = namelen;
- c->current.max_names = 1;
- c->current.current_fpe = 0;
- c->current.private = 0;
- c->current.list_started = FALSE;
- }
- /*
- * At the end of this FPE, step to the next. If we've finished
- * processing an alias, pop state back. If we've sent enough font
- * names, quit. Always wait for BadFontName to let the FPE
- * have a chance to clean up.
- */
- else if (err == BadFontName)
- {
- ContBadFontName: ;
- c->current.list_started = FALSE;
- c->current.current_fpe++;
- err = Successful;
- if (c->haveSaved)
- {
- if (c->current.max_names == 0 ||
- c->current.current_fpe == c->num_fpes)
- {
- c->haveSaved = FALSE;
- c->saved.max_names -= (1 - c->current.max_names);
- c->current = c->saved;
- }
- }
- else if (c->current.max_names == 0)
- break;
- }
- else if (err == Successful)
- {
- length = sizeof(*reply) + pFontInfo->nprops * sizeof(xFontProp);
- reply = c->reply;
- if (c->length < length)
- {
- reply = (xListFontsWithInfoReply *) xrealloc(c->reply, length);
- if (!reply)
- {
- err = AllocError;
- break;
- }
- memset((char*)reply + c->length, 0, length - c->length);
- c->reply = reply;
- c->length = length;
- }
- if (c->haveSaved)
- {
- numFonts = c->savedNumFonts;
- name = c->savedName;
- namelen = strlen(name);
- }
- reply->type = X_Reply;
- reply->length = bytes_to_int32(sizeof *reply - sizeof(xGenericReply) +
- pFontInfo->nprops * sizeof(xFontProp) +
- namelen);
- reply->sequenceNumber = client->sequence;
- reply->nameLength = namelen;
- reply->minBounds = pFontInfo->ink_minbounds;
- reply->maxBounds = pFontInfo->ink_maxbounds;
- reply->minCharOrByte2 = pFontInfo->firstCol;
- reply->maxCharOrByte2 = pFontInfo->lastCol;
- reply->defaultChar = pFontInfo->defaultCh;
- reply->nFontProps = pFontInfo->nprops;
- reply->drawDirection = pFontInfo->drawDirection;
- reply->minByte1 = pFontInfo->firstRow;
- reply->maxByte1 = pFontInfo->lastRow;
- reply->allCharsExist = pFontInfo->allExist;
- reply->fontAscent = pFontInfo->fontAscent;
- reply->fontDescent = pFontInfo->fontDescent;
- reply->nReplies = numFonts;
- pFP = (xFontProp *) (reply + 1);
- for (i = 0; i < pFontInfo->nprops; i++)
- {
- pFP->name = pFontInfo->props[i].name;
- pFP->value = pFontInfo->props[i].value;
- pFP++;
- }
- WriteSwappedDataToClient(client, length, reply);
- (void) WriteToClient(client, namelen, name);
- if (pFontInfo == &fontInfo)
- {
- xfree(fontInfo.props);
- xfree(fontInfo.isStringProp);
- }
- --c->current.max_names;
- }
- }
-finish:
- length = sizeof(xListFontsWithInfoReply);
- bzero((char *) &finalReply, sizeof(xListFontsWithInfoReply));
- finalReply.type = X_Reply;
- finalReply.sequenceNumber = client->sequence;
- finalReply.length = bytes_to_int32(sizeof(xListFontsWithInfoReply)
- - sizeof(xGenericReply));
- WriteSwappedDataToClient(client, length, &finalReply);
-bail:
- if (c->slept)
- ClientWakeup(client);
- for (i = 0; i < c->num_fpes; i++)
- FreeFPE(c->fpe_list[i]);
- xfree(c->reply);
- xfree(c->fpe_list);
- if (c->savedName) xfree(c->savedName);
- xfree(c);
- return TRUE;
-}
-
-int
-StartListFontsWithInfo(ClientPtr client, int length, unsigned char *pattern,
- int max_names)
-{
- int i;
- LFWIclosurePtr c;
-
- /*
- * The right error to return here would be BadName, however the
- * specification does not allow for a Name error on this request.
- * Perhaps a better solution would be to return a nil list, i.e.
- * a list containing zero fontnames.
- */
- if (length > XLFDMAXFONTNAMELEN)
- return BadAlloc;
-
- i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
- if (i != Success)
- return i;
-
- if (!(c = xalloc(sizeof *c)))
- goto badAlloc;
- c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
- if (!c->fpe_list)
- {
- xfree(c);
- goto badAlloc;
- }
- memmove(c->current.pattern, pattern, length);
- for (i = 0; i < num_fpes; i++)
- {
- c->fpe_list[i] = font_path_elements[i];
- UseFPE(c->fpe_list[i]);
- }
- c->client = client;
- c->num_fpes = num_fpes;
- c->reply = 0;
- c->length = 0;
- c->current.patlen = length;
- c->current.current_fpe = 0;
- c->current.max_names = max_names;
- c->current.list_started = FALSE;
- c->current.private = 0;
- c->savedNumFonts = 0;
- c->haveSaved = FALSE;
- c->slept = FALSE;
- c->savedName = 0;
- doListFontsWithInfo(client, c);
- return Success;
-badAlloc:
- return BadAlloc;
-}
-
-#define TextEltHeader 2
-#define FontShiftSize 5
-static XID clearGC[] = { CT_NONE };
-#define clearGCmask (GCClipMask)
-
-int
-doPolyText(ClientPtr client, PTclosurePtr c)
-{
- FontPtr pFont = c->pGC->font, oldpFont;
- Font fid, oldfid;
- int err = Success, lgerr; /* err is in X error, not font error, space */
- enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT;
- FontPathElementPtr fpe;
- GC *origGC = NULL;
-
- if (client->clientGone)
- {
- fpe = c->pGC->font->fpe;
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
-
- if (c->slept)
- {
- /* Client has died, but we cannot bail out right now. We
- need to clean up after the work we did when going to
- sleep. Setting the drawable pointer to 0 makes this
- happen without any attempts to render or perform other
- unnecessary activities. */
- c->pDraw = (DrawablePtr)0;
- }
- else
- {
- err = Success;
- goto bail;
- }
- }
-
- /* Make sure our drawable hasn't disappeared while we slept. */
- if (c->slept && c->pDraw)
- {
- DrawablePtr pDraw;
- dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
- if (c->pDraw != pDraw) {
- /* Our drawable has disappeared. Treat like client died... ask
- the FPE code to clean up after client and avoid further
- rendering while we clean up after ourself. */
- fpe = c->pGC->font->fpe;
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- c->pDraw = (DrawablePtr)0;
- }
- }
-
- client_state = c->slept ? SLEEPING : NEVER_SLEPT;
-
- while (c->endReq - c->pElt > TextEltHeader)
- {
- if (*c->pElt == FontChange)
- {
- if (c->endReq - c->pElt < FontShiftSize)
- {
- err = BadLength;
- goto bail;
- }
-
- oldpFont = pFont;
- oldfid = fid;
-
- fid = ((Font)*(c->pElt+4)) /* big-endian */
- | ((Font)*(c->pElt+3)) << 8
- | ((Font)*(c->pElt+2)) << 16
- | ((Font)*(c->pElt+1)) << 24;
- err = dixLookupResourceByType((pointer *)&pFont, fid, RT_FONT,
- client, DixReadAccess);
- if (err != Success)
- {
- err = (err == BadValue) ? BadFont : err;
- /* restore pFont and fid for step 4 (described below) */
- pFont = oldpFont;
- fid = oldfid;
-
- /* If we're in START_SLEEP mode, the following step
- shortens the request... in the unlikely event that
- the fid somehow becomes valid before we come through
- again to actually execute the polytext, which would
- then mess up our refcounting scheme badly. */
- c->err = err;
- c->endReq = c->pElt;
-
- goto bail;
- }
-
- /* Step 3 (described below) on our new font */
- if (client_state == START_SLEEP)
- pFont->refcnt++;
- else
- {
- if (pFont != c->pGC->font && c->pDraw)
- {
- ChangeGC( c->pGC, GCFont, &fid);
- ValidateGC(c->pDraw, c->pGC);
- if (c->reqType == X_PolyText8)
- c->polyText = (PolyTextPtr) c->pGC->ops->PolyText8;
- else
- c->polyText = (PolyTextPtr) c->pGC->ops->PolyText16;
- }
-
- /* Undo the refcnt++ we performed when going to sleep */
- if (client_state == SLEEPING)
- (void)CloseFont(c->pGC->font, (Font)0);
- }
- c->pElt += FontShiftSize;
- }
- else /* print a string */
- {
- unsigned char *pNextElt;
- pNextElt = c->pElt + TextEltHeader + (*c->pElt)*c->itemSize;
- if ( pNextElt > c->endReq)
- {
- err = BadLength;
- goto bail;
- }
- if (client_state == START_SLEEP)
- {
- c->pElt = pNextElt;
- continue;
- }
- if (c->pDraw)
- {
- lgerr = LoadGlyphs(client, c->pGC->font, *c->pElt, c->itemSize,
- c->pElt + TextEltHeader);
- }
- else lgerr = Successful;
-
- if (lgerr == Suspended)
- {
- if (!c->slept) {
- int len;
- GC *pGC;
- PTclosurePtr new_closure;
-
- /* We're putting the client to sleep. We need to do a few things
- to ensure successful and atomic-appearing execution of the
- remainder of the request. First, copy the remainder of the
- request into a safe malloc'd area. Second, create a scratch GC
- to use for the remainder of the request. Third, mark all fonts
- referenced in the remainder of the request to prevent their
- deallocation. Fourth, make the original GC look like the
- request has completed... set its font to the final font value
- from this request. These GC manipulations are for the unlikely
- (but possible) event that some other client is using the GC.
- Steps 3 and 4 are performed by running this procedure through
- the remainder of the request in a special no-render mode
- indicated by client_state = START_SLEEP. */
-
- /* Step 1 */
- /* Allocate a malloc'd closure structure to replace
- the local one we were passed */
- new_closure = xalloc(sizeof(PTclosureRec));
- if (!new_closure)
- {
- err = BadAlloc;
- goto bail;
- }
- *new_closure = *c;
- c = new_closure;
-
- len = c->endReq - c->pElt;
- c->data = xalloc(len);
- if (!c->data)
- {
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- memmove(c->data, c->pElt, len);
- c->pElt = c->data;
- c->endReq = c->pElt + len;
-
- /* Step 2 */
-
- pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen);
- if (!pGC)
- {
- xfree(c->data);
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- if ((err = CopyGC(c->pGC, pGC, GCFunction |
- GCPlaneMask | GCForeground |
- GCBackground | GCFillStyle |
- GCTile | GCStipple |
- GCTileStipXOrigin |
- GCTileStipYOrigin | GCFont |
- GCSubwindowMode | GCClipXOrigin |
- GCClipYOrigin | GCClipMask)) !=
- Success)
- {
- FreeScratchGC(pGC);
- xfree(c->data);
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- origGC = c->pGC;
- c->pGC = pGC;
- ValidateGC(c->pDraw, c->pGC);
-
- c->slept = TRUE;
- ClientSleep(client,
- (ClientSleepProcPtr)doPolyText,
- (pointer) c);
-
- /* Set up to perform steps 3 and 4 */
- client_state = START_SLEEP;
- continue; /* on to steps 3 and 4 */
- }
- return TRUE;
- }
- else if (lgerr != Successful)
- {
- err = FontToXError(lgerr);
- goto bail;
- }
- if (c->pDraw)
- {
- c->xorg += *((INT8 *)(c->pElt + 1)); /* must be signed */
- c->xorg = (* c->polyText)(c->pDraw, c->pGC, c->xorg, c->yorg,
- *c->pElt, c->pElt + TextEltHeader);
- }
- c->pElt = pNextElt;
- }
- }
-
-bail:
-
- if (client_state == START_SLEEP)
- {
- /* Step 4 */
- if (pFont != origGC->font)
- {
- ChangeGC(origGC, GCFont, &fid);
- ValidateGC(c->pDraw, origGC);
- }
-
- /* restore pElt pointer for execution of remainder of the request */
- c->pElt = c->data;
- return TRUE;
- }
-
- if (c->err != Success) err = c->err;
- if (err != Success && c->client != serverClient) {
-#ifdef PANORAMIX
- if (noPanoramiXExtension || !c->pGC->pScreen->myNum)
-#endif
- SendErrorToClient(c->client, c->reqType, 0, 0, err);
- }
- if (c->slept)
- {
- ClientWakeup(c->client);
- ChangeGC(c->pGC, clearGCmask, clearGC);
-
- /* Unreference the font from the scratch GC */
- CloseFont(c->pGC->font, (Font)0);
- c->pGC->font = NullFont;
-
- FreeScratchGC(c->pGC);
- xfree(c->data);
- xfree(c);
- }
- return TRUE;
-}
-
-int
-PolyText(ClientPtr client, DrawablePtr pDraw, GC *pGC, unsigned char *pElt,
- unsigned char *endReq, int xorg, int yorg, int reqType, XID did)
-{
- PTclosureRec local_closure;
-
- local_closure.pElt = pElt;
- local_closure.endReq = endReq;
- local_closure.client = client;
- local_closure.pDraw = pDraw;
- local_closure.xorg = xorg;
- local_closure.yorg = yorg;
- if ((local_closure.reqType = reqType) == X_PolyText8)
- {
- local_closure.polyText = (PolyTextPtr) pGC->ops->PolyText8;
- local_closure.itemSize = 1;
- }
- else
- {
- local_closure.polyText = (PolyTextPtr) pGC->ops->PolyText16;
- local_closure.itemSize = 2;
- }
- local_closure.pGC = pGC;
- local_closure.did = did;
- local_closure.err = Success;
- local_closure.slept = FALSE;
-
- (void) doPolyText(client, &local_closure);
- return Success;
-}
-
-
-#undef TextEltHeader
-#undef FontShiftSize
-
-int
-doImageText(ClientPtr client, ITclosurePtr c)
-{
- int err = Success, lgerr; /* err is in X error, not font error, space */
- FontPathElementPtr fpe;
-
- if (client->clientGone)
- {
- fpe = c->pGC->font->fpe;
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- err = Success;
- goto bail;
- }
-
- /* Make sure our drawable hasn't disappeared while we slept. */
- if (c->slept && c->pDraw)
- {
- DrawablePtr pDraw;
- dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
- if (c->pDraw != pDraw) {
- /* Our drawable has disappeared. Treat like client died... ask
- the FPE code to clean up after client. */
- fpe = c->pGC->font->fpe;
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- err = Success;
- goto bail;
- }
- }
-
- lgerr = LoadGlyphs(client, c->pGC->font, c->nChars, c->itemSize, c->data);
- if (lgerr == Suspended)
- {
- if (!c->slept) {
- GC *pGC;
- unsigned char *data;
- ITclosurePtr new_closure;
-
- /* We're putting the client to sleep. We need to
- save some state. Similar problem to that handled
- in doPolyText, but much simpler because the
- request structure is much simpler. */
-
- new_closure = xalloc(sizeof(ITclosureRec));
- if (!new_closure)
- {
- err = BadAlloc;
- goto bail;
- }
- *new_closure = *c;
- c = new_closure;
-
- data = xalloc(c->nChars * c->itemSize);
- if (!data)
- {
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- memmove(data, c->data, c->nChars * c->itemSize);
- c->data = data;
-
- pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen);
- if (!pGC)
- {
- xfree(c->data);
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- if ((err = CopyGC(c->pGC, pGC, GCFunction | GCPlaneMask |
- GCForeground | GCBackground | GCFillStyle |
- GCTile | GCStipple | GCTileStipXOrigin |
- GCTileStipYOrigin | GCFont |
- GCSubwindowMode | GCClipXOrigin |
- GCClipYOrigin | GCClipMask)) != Success)
- {
- FreeScratchGC(pGC);
- xfree(c->data);
- xfree(c);
- err = BadAlloc;
- goto bail;
- }
- c->pGC = pGC;
- ValidateGC(c->pDraw, c->pGC);
-
- c->slept = TRUE;
- ClientSleep(client, (ClientSleepProcPtr)doImageText, (pointer) c);
- }
- return TRUE;
- }
- else if (lgerr != Successful)
- {
- err = FontToXError(lgerr);
- goto bail;
- }
- if (c->pDraw)
- {
- (* c->imageText)(c->pDraw, c->pGC, c->xorg, c->yorg,
- c->nChars, c->data);
- }
-
-bail:
-
- if (err != Success && c->client != serverClient) {
- SendErrorToClient(c->client, c->reqType, 0, 0, err);
- }
- if (c->slept)
- {
- ClientWakeup(c->client);
- ChangeGC(c->pGC, clearGCmask, clearGC);
-
- /* Unreference the font from the scratch GC */
- CloseFont(c->pGC->font, (Font)0);
- c->pGC->font = NullFont;
-
- FreeScratchGC(c->pGC);
- xfree(c->data);
- xfree(c);
- }
- return TRUE;
-}
-
-int
-ImageText(ClientPtr client, DrawablePtr pDraw, GC *pGC, int nChars,
- unsigned char *data, int xorg, int yorg, int reqType, XID did)
-{
- ITclosureRec local_closure;
-
- local_closure.client = client;
- local_closure.pDraw = pDraw;
- local_closure.pGC = pGC;
- local_closure.nChars = nChars;
- local_closure.data = data;
- local_closure.xorg = xorg;
- local_closure.yorg = yorg;
- if ((local_closure.reqType = reqType) == X_ImageText8)
- {
- local_closure.imageText = (ImageTextPtr) pGC->ops->ImageText8;
- local_closure.itemSize = 1;
- }
- else
- {
- local_closure.imageText = (ImageTextPtr) pGC->ops->ImageText16;
- local_closure.itemSize = 2;
- }
- local_closure.did = did;
- local_closure.slept = FALSE;
-
- (void) doImageText(client, &local_closure);
- return Success;
-}
-
-
-/* does the necessary magic to figure out the fpe type */
-static int
-DetermineFPEType(char *pathname)
-{
- int i;
-
- for (i = 0; i < num_fpe_types; i++) {
- if ((*fpe_functions[i].name_check) (pathname))
- return i;
- }
- return -1;
-}
-
-
-static void
-FreeFontPath(FontPathElementPtr *list, int n, Bool force)
-{
- int i;
-
- for (i = 0; i < n; i++) {
- if (force) {
- /* Sanity check that all refcounts will be 0 by the time
- we get to the end of the list. */
- int found = 1; /* the first reference is us */
- int j;
- for (j = i+1; j < n; j++) {
- if (list[j] == list[i])
- found++;
- }
- if (list[i]->refcount != found) {
- list[i]->refcount = found; /* ensure it will get freed */
- }
- }
- FreeFPE(list[i]);
- }
- xfree(list);
-}
-
-static FontPathElementPtr
-find_existing_fpe(FontPathElementPtr *list, int num, unsigned char *name, int len)
-{
- FontPathElementPtr fpe;
- int i;
-
- for (i = 0; i < num; i++) {
- fpe = list[i];
- if (fpe->name_length == len && memcmp(name, fpe->name, len) == 0)
- return fpe;
- }
- return (FontPathElementPtr) 0;
-}
-
-
-static int
-SetFontPathElements(int npaths, unsigned char *paths, int *bad, Bool persist)
-{
- int i, err = 0;
- int valid_paths = 0;
- unsigned int len;
- unsigned char *cp = paths;
- FontPathElementPtr fpe = NULL, *fplist;
-
- fplist = xalloc(sizeof(FontPathElementPtr) * npaths);
- if (!fplist) {
- *bad = 0;
- return BadAlloc;
- }
- for (i = 0; i < num_fpe_types; i++) {
- if (fpe_functions[i].set_path_hook)
- (*fpe_functions[i].set_path_hook) ();
- }
- for (i = 0; i < npaths; i++)
- {
- len = (unsigned int) (*cp++);
-
- if (len == 0)
- {
- if (persist)
- ErrorF("[dix] Removing empty element from the valid list of fontpaths\n");
- err = BadValue;
- }
- else
- {
- /* if it's already in our active list, just reset it */
- /*
- * note that this can miss FPE's in limbo -- may be worth catching
- * them, though it'd muck up refcounting
- */
- fpe = find_existing_fpe(font_path_elements, num_fpes, cp, len);
- if (fpe)
- {
- err = (*fpe_functions[fpe->type].reset_fpe) (fpe);
- if (err == Successful)
- {
- UseFPE(fpe);/* since it'll be decref'd later when freed
- * from the old list */
- }
- else
- fpe = 0;
- }
- /* if error or can't do it, act like it's a new one */
- if (!fpe)
- {
- fpe = xalloc(sizeof(FontPathElementRec));
- if (!fpe)
- {
- err = BadAlloc;
- goto bail;
- }
- fpe->name = xalloc(len + 1);
- if (!fpe->name)
- {
- xfree(fpe);
- err = BadAlloc;
- goto bail;
- }
- fpe->refcount = 1;
-
- strncpy(fpe->name, (char *) cp, (int) len);
- fpe->name[len] = '\0';
- fpe->name_length = len;
- fpe->type = DetermineFPEType(fpe->name);
- if (fpe->type == -1)
- err = BadValue;
- else
- err = (*fpe_functions[fpe->type].init_fpe) (fpe);
- if (err != Successful)
- {
- if (persist)
- {
- ErrorF("[dix] Could not init font path element %s, removing from list!\n",
- fpe->name);
- }
- xfree (fpe->name);
- xfree (fpe);
- }
- }
- }
- if (err != Successful)
- {
- if (!persist)
- goto bail;
- }
- else
- {
- fplist[valid_paths++] = fpe;
- }
- cp += len;
- }
-
- FreeFontPath(font_path_elements, num_fpes, FALSE);
- font_path_elements = fplist;
- if (patternCache)
- EmptyFontPatternCache(patternCache);
- num_fpes = valid_paths;
-
- return Success;
-bail:
- *bad = i;
- while (--valid_paths >= 0)
- FreeFPE(fplist[valid_paths]);
- xfree(fplist);
- return FontToXError(err);
-}
-
-/* XXX -- do we need to pass error down to each renderer? */
-int
-SetFontPath(ClientPtr client, int npaths, unsigned char *paths, int *error)
-{
- int err = XaceHook(XACE_SERVER_ACCESS, client, DixManageAccess);
- if (err != Success)
- return err;
-
- if (npaths == 0) {
- if (SetDefaultFontPath(defaultFontPath) != Success)
- return BadValue;
- } else {
- err = SetFontPathElements(npaths, paths, error, FALSE);
- }
- return err;
-}
-
-int
-SetDefaultFontPath(char *path)
-{
- char *temp_path,
- *start,
- *end;
- unsigned char *cp,
- *pp,
- *nump,
- *newpath;
- int num = 1,
- len,
- err,
- size = 0,
- bad;
-
- /* ensure temp_path contains "built-ins" */
- start = path;
- while (1) {
- start = strstr(start, "built-ins");
- if (start == NULL)
- break;
- end = start + strlen("built-ins");
- if ((start == path || start[-1] == ',') && (!*end || *end == ','))
- break;
- start = end;
- }
- if (!start) {
- temp_path = Xprintf("%s%sbuilt-ins", path, *path ? "," : "");
- } else {
- temp_path = Xstrdup(path);
- }
- if (!temp_path)
- return BadAlloc;
-
- /* get enough for string, plus values -- use up commas */
- len = strlen(temp_path) + 1;
- nump = cp = newpath = xalloc(len);
- if (!newpath)
- return BadAlloc;
- pp = (unsigned char *) temp_path;
- cp++;
- while (*pp) {
- if (*pp == ',') {
- *nump = (unsigned char) size;
- nump = cp++;
- pp++;
- num++;
- size = 0;
- } else {
- *cp++ = *pp++;
- size++;
- }
- }
- *nump = (unsigned char) size;
-
- err = SetFontPathElements(num, newpath, &bad, TRUE);
-
- xfree(newpath);
- xfree(temp_path);
-
- return err;
-}
-
-int
-GetFontPath(ClientPtr client, int *count, int *length, unsigned char **result)
-{
- int i;
- unsigned char *c;
- int len;
- FontPathElementPtr fpe;
-
- i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
- if (i != Success)
- return i;
-
- len = 0;
- for (i = 0; i < num_fpes; i++) {
- fpe = font_path_elements[i];
- len += fpe->name_length + 1;
- }
- font_path_string = (unsigned char *) xrealloc(font_path_string, len);
- if (!font_path_string)
- return BadAlloc;
-
- c = font_path_string;
- *length = 0;
- for (i = 0; i < num_fpes; i++) {
- fpe = font_path_elements[i];
- *c = fpe->name_length;
- *length += *c++;
- memmove(c, fpe->name, fpe->name_length);
- c += fpe->name_length;
- }
- *count = num_fpes;
- *result = font_path_string;
- return Success;
-}
-
-void
-DeleteClientFontStuff(ClientPtr client)
-{
- int i;
- FontPathElementPtr fpe;
-
- for (i = 0; i < num_fpes; i++)
- {
- fpe = font_path_elements[i];
- if (fpe_functions[fpe->type].client_died)
- (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
- }
-}
-
-void
-InitFonts (void)
-{
- patternCache = MakeFontPatternCache();
-
- BuiltinRegisterFpeFunctions();
- FontFileRegisterFpeFunctions();
- fs_register_fpe_functions();
-}
-
-int
-GetDefaultPointSize (void)
-{
- return 120;
-}
-
-
-FontResolutionPtr
-GetClientResolutions (int *num)
-{
- static struct _FontResolution res;
- ScreenPtr pScreen;
-
- pScreen = screenInfo.screens[0];
- res.x_resolution = (pScreen->width * 25.4) / pScreen->mmWidth;
- /*
- * XXX - we'll want this as long as bitmap instances are prevalent
- so that we can match them from scalable fonts
- */
- if (res.x_resolution < 88)
- res.x_resolution = 75;
- else
- res.x_resolution = 100;
- res.y_resolution = (pScreen->height * 25.4) / pScreen->mmHeight;
- if (res.y_resolution < 88)
- res.y_resolution = 75;
- else
- res.y_resolution = 100;
- res.point_size = 120;
- *num = 1;
- return &res;
-}
-
-/*
- * returns the type index of the new fpe
- *
- * should be called (only once!) by each type of fpe when initialized
- */
-
-int
-RegisterFPEFunctions(NameCheckFunc name_func,
- InitFpeFunc init_func,
- FreeFpeFunc free_func,
- ResetFpeFunc reset_func,
- OpenFontFunc open_func,
- CloseFontFunc close_func,
- ListFontsFunc list_func,
- StartLfwiFunc start_lfwi_func,
- NextLfwiFunc next_lfwi_func,
- WakeupFpeFunc wakeup_func,
- ClientDiedFunc client_died,
- LoadGlyphsFunc load_glyphs,
- StartLaFunc start_list_alias_func,
- NextLaFunc next_list_alias_func,
- SetPathFunc set_path_func)
-{
- FPEFunctions *new;
-
- /* grow the list */
- new = (FPEFunctions *) xrealloc(fpe_functions,
- (num_fpe_types + 1) * sizeof(FPEFunctions));
- if (!new)
- return -1;
- fpe_functions = new;
-
- fpe_functions[num_fpe_types].name_check = name_func;
- fpe_functions[num_fpe_types].open_font = open_func;
- fpe_functions[num_fpe_types].close_font = close_func;
- fpe_functions[num_fpe_types].wakeup_fpe = wakeup_func;
- fpe_functions[num_fpe_types].list_fonts = list_func;
- fpe_functions[num_fpe_types].start_list_fonts_with_info =
- start_lfwi_func;
- fpe_functions[num_fpe_types].list_next_font_with_info =
- next_lfwi_func;
- fpe_functions[num_fpe_types].init_fpe = init_func;
- fpe_functions[num_fpe_types].free_fpe = free_func;
- fpe_functions[num_fpe_types].reset_fpe = reset_func;
- fpe_functions[num_fpe_types].client_died = client_died;
- fpe_functions[num_fpe_types].load_glyphs = load_glyphs;
- fpe_functions[num_fpe_types].start_list_fonts_and_aliases =
- start_list_alias_func;
- fpe_functions[num_fpe_types].list_next_font_or_alias =
- next_list_alias_func;
- fpe_functions[num_fpe_types].set_path_hook = set_path_func;
-
- return num_fpe_types++;
-}
-
-void
-FreeFonts(void)
-{
- if (patternCache) {
- FreeFontPatternCache(patternCache);
- patternCache = 0;
- }
- FreeFontPath(font_path_elements, num_fpes, TRUE);
- font_path_elements = 0;
- num_fpes = 0;
- xfree(fpe_functions);
- num_fpe_types = 0;
- fpe_functions = (FPEFunctions *) 0;
-}
-
-/* convenience functions for FS interface */
-
-FontPtr
-find_old_font(XID id)
-{
- pointer pFont;
- dixLookupResourceByType(&pFont, id, RT_NONE, serverClient, DixReadAccess);
- return (FontPtr)pFont;
-}
-
-Font
-GetNewFontClientID(void)
-{
- return FakeClientID(0);
-}
-
-int
-StoreFontClientFont(FontPtr pfont, Font id)
-{
- return AddResource(id, RT_NONE, (pointer) pfont);
-}
-
-void
-DeleteFontClientID(Font id)
-{
- FreeResource(id, RT_NONE);
-}
-
-int
-client_auth_generation(ClientPtr client)
-{
- return 0;
-}
-
-static int fs_handlers_installed = 0;
-static unsigned int last_server_gen;
-
-int
-init_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler)
-{
- /* if server has reset, make sure the b&w handlers are reinstalled */
- if (last_server_gen < serverGeneration) {
- last_server_gen = serverGeneration;
- fs_handlers_installed = 0;
- }
- if (fs_handlers_installed == 0) {
- if (!RegisterBlockAndWakeupHandlers(block_handler,
- FontWakeup, (pointer) 0))
- return AllocError;
- fs_handlers_installed++;
- }
- QueueFontWakeup(fpe);
- return Successful;
-}
-
-void
-remove_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler, Bool all)
-{
- if (all) {
- /* remove the handlers if no one else is using them */
- if (--fs_handlers_installed == 0) {
- RemoveBlockAndWakeupHandlers(block_handler, FontWakeup,
- (pointer) 0);
- }
- }
- RemoveFontWakeup(fpe);
-}
+/************************************************************************
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+************************************************************************/
+/* The panoramix components contained the following notice */
+/*
+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+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
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+
+******************************************************************/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xproto.h>
+#include "scrnintstr.h"
+#include "resource.h"
+#include "dixstruct.h"
+#include "cursorstr.h"
+#include "misc.h"
+#include "opaque.h"
+#include "dixfontstr.h"
+#include "closestr.h"
+#include "dixfont.h"
+#include "xace.h"
+
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
+#ifdef XF86BIGFONT
+#define _XF86BIGFONT_SERVER_
+#include <X11/extensions/xf86bigfont.h>
+#endif
+
+#define QUERYCHARINFO(pci, pr) *(pr) = (pci)->metrics
+
+extern pointer fosNaturalParams;
+extern FontPtr defaultFont;
+
+static FontPathElementPtr *font_path_elements = (FontPathElementPtr *) 0;
+static int num_fpes = 0;
+static FPEFunctions *fpe_functions = (FPEFunctions *) 0;
+static int num_fpe_types = 0;
+
+static unsigned char *font_path_string;
+
+static int num_slept_fpes = 0;
+static int size_slept_fpes = 0;
+static FontPathElementPtr *slept_fpes = (FontPathElementPtr *) 0;
+static FontPatternCachePtr patternCache;
+
+static int
+FontToXError(int err)
+{
+ switch (err) {
+ case Successful:
+ return Success;
+ case AllocError:
+ return BadAlloc;
+ case BadFontName:
+ return BadName;
+ case BadFontPath:
+ case BadFontFormat: /* is there something better? */
+ case BadCharRange:
+ return BadValue;
+ default:
+ return err;
+ }
+}
+
+static int
+LoadGlyphs(ClientPtr client, FontPtr pfont, unsigned nchars, int item_size,
+ unsigned char *data)
+{
+ if (fpe_functions[pfont->fpe->type].load_glyphs)
+ return (*fpe_functions[pfont->fpe->type].load_glyphs)
+ (client, pfont, 0, nchars, item_size, data);
+ else
+ return Successful;
+}
+
+/*
+ * adding RT_FONT prevents conflict with default cursor font
+ */
+Bool
+SetDefaultFont(char *defaultfontname)
+{
+ int err;
+ FontPtr pf;
+ XID fid;
+ static FontPtr last_pf;
+
+ fid = FakeClientID(0);
+ err = OpenFont(serverClient, fid, FontLoadAll | FontOpenSync,
+ (unsigned) strlen(defaultfontname), defaultfontname);
+ if (err != Success)
+ return FALSE;
+ err = dixLookupResourceByType((pointer *)&pf, fid, RT_FONT, serverClient,
+ DixReadAccess);
+ if (err == Success) last_pf = pf;
+ if (last_pf == (FontPtr) NULL)
+ return FALSE;
+ defaultFont = last_pf;
+ return TRUE;
+}
+
+/*
+ * note that the font wakeup queue is not refcounted. this is because
+ * an fpe needs to be added when it's inited, and removed when it's finally
+ * freed, in order to handle any data that isn't requested, like FS events.
+ *
+ * since the only thing that should call these routines is the renderer's
+ * init_fpe() and free_fpe(), there shouldn't be any problem in using
+ * freed data.
+ */
+void
+QueueFontWakeup(FontPathElementPtr fpe)
+{
+ int i;
+ FontPathElementPtr *new;
+
+ for (i = 0; i < num_slept_fpes; i++) {
+ if (slept_fpes[i] == fpe) {
+ return;
+ }
+ }
+ if (num_slept_fpes == size_slept_fpes) {
+ new = (FontPathElementPtr *)
+ xrealloc(slept_fpes,
+ sizeof(FontPathElementPtr) * (size_slept_fpes + 4));
+ if (!new)
+ return;
+ slept_fpes = new;
+ size_slept_fpes += 4;
+ }
+ slept_fpes[num_slept_fpes] = fpe;
+ num_slept_fpes++;
+}
+
+void
+RemoveFontWakeup(FontPathElementPtr fpe)
+{
+ int i,
+ j;
+
+ for (i = 0; i < num_slept_fpes; i++) {
+ if (slept_fpes[i] == fpe) {
+ for (j = i; j < num_slept_fpes; j++) {
+ slept_fpes[j] = slept_fpes[j + 1];
+ }
+ num_slept_fpes--;
+ return;
+ }
+ }
+}
+
+void
+FontWakeup(pointer data, int count, pointer LastSelectMask)
+{
+ int i;
+ FontPathElementPtr fpe;
+
+ if (count < 0)
+ return;
+ /* wake up any fpe's that may be waiting for information */
+ for (i = 0; i < num_slept_fpes; i++) {
+ fpe = slept_fpes[i];
+ (void) (*fpe_functions[fpe->type].wakeup_fpe) (fpe, LastSelectMask);
+ }
+}
+
+/* XXX -- these two funcs may want to be broken into macros */
+static void
+UseFPE(FontPathElementPtr fpe)
+{
+ fpe->refcount++;
+}
+
+static void
+FreeFPE (FontPathElementPtr fpe)
+{
+ fpe->refcount--;
+ if (fpe->refcount == 0) {
+ (*fpe_functions[fpe->type].free_fpe) (fpe);
+ xfree(fpe->name);
+ xfree(fpe);
+ }
+}
+
+static Bool
+doOpenFont(ClientPtr client, OFclosurePtr c)
+{
+ FontPtr pfont = NullFont;
+ FontPathElementPtr fpe = NULL;
+ ScreenPtr pScr;
+ int err = Successful;
+ int i;
+ char *alias,
+ *newname;
+ int newlen;
+ int aliascount = 20;
+ /*
+ * Decide at runtime what FontFormat to use.
+ */
+ Mask FontFormat =
+
+ ((screenInfo.imageByteOrder == LSBFirst) ?
+ BitmapFormatByteOrderLSB : BitmapFormatByteOrderMSB) |
+
+ ((screenInfo.bitmapBitOrder == LSBFirst) ?
+ BitmapFormatBitOrderLSB : BitmapFormatBitOrderMSB) |
+
+ BitmapFormatImageRectMin |
+
+#if GLYPHPADBYTES == 1
+ BitmapFormatScanlinePad8 |
+#endif
+
+#if GLYPHPADBYTES == 2
+ BitmapFormatScanlinePad16 |
+#endif
+
+#if GLYPHPADBYTES == 4
+ BitmapFormatScanlinePad32 |
+#endif
+
+#if GLYPHPADBYTES == 8
+ BitmapFormatScanlinePad64 |
+#endif
+
+ BitmapFormatScanlineUnit8;
+
+ if (client->clientGone)
+ {
+ if (c->current_fpe < c->num_fpes)
+ {
+ fpe = c->fpe_list[c->current_fpe];
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ }
+ err = Successful;
+ goto bail;
+ }
+ while (c->current_fpe < c->num_fpes) {
+ fpe = c->fpe_list[c->current_fpe];
+ err = (*fpe_functions[fpe->type].open_font)
+ ((pointer) client, fpe, c->flags,
+ c->fontname, c->fnamelen, FontFormat,
+ BitmapFormatMaskByte |
+ BitmapFormatMaskBit |
+ BitmapFormatMaskImageRectangle |
+ BitmapFormatMaskScanLinePad |
+ BitmapFormatMaskScanLineUnit,
+ c->fontid, &pfont, &alias,
+ c->non_cachable_font && c->non_cachable_font->fpe == fpe ?
+ c->non_cachable_font :
+ (FontPtr)0);
+
+ if (err == FontNameAlias && alias) {
+ newlen = strlen(alias);
+ newname = (char *) xrealloc(c->fontname, newlen);
+ if (!newname) {
+ err = AllocError;
+ break;
+ }
+ memmove(newname, alias, newlen);
+ c->fontname = newname;
+ c->fnamelen = newlen;
+ c->current_fpe = 0;
+ if (--aliascount <= 0) {
+ /* We've tried resolving this alias 20 times, we're
+ * probably stuck in an infinite loop of aliases pointing
+ * to each other - time to take emergency exit!
+ */
+ err = BadImplementation;
+ break;
+ }
+ continue;
+ }
+ if (err == BadFontName) {
+ c->current_fpe++;
+ continue;
+ }
+ if (err == Suspended) {
+ if (!c->slept) {
+ c->slept = TRUE;
+ ClientSleep(client, (ClientSleepProcPtr)doOpenFont, (pointer) c);
+ }
+ return TRUE;
+ }
+ break;
+ }
+
+ if (err != Successful)
+ goto bail;
+ if (!pfont) {
+ err = BadFontName;
+ goto bail;
+ }
+ /* check values for firstCol, lastCol, firstRow, and lastRow */
+ if (pfont->info.firstCol > pfont->info.lastCol ||
+ pfont->info.firstRow > pfont->info.lastRow ||
+ pfont->info.lastCol - pfont->info.firstCol > 255) {
+ err = AllocError;
+ goto bail;
+ }
+ if (!pfont->fpe)
+ pfont->fpe = fpe;
+ pfont->refcnt++;
+ if (pfont->refcnt == 1) {
+ UseFPE(pfont->fpe);
+ for (i = 0; i < screenInfo.numScreens; i++) {
+ pScr = screenInfo.screens[i];
+ if (pScr->RealizeFont)
+ {
+ if (!(*pScr->RealizeFont) (pScr, pfont))
+ {
+ CloseFont (pfont, (Font) 0);
+ err = AllocError;
+ goto bail;
+ }
+ }
+ }
+ }
+ if (!AddResource(c->fontid, RT_FONT, (pointer) pfont)) {
+ err = AllocError;
+ goto bail;
+ }
+ if (patternCache && pfont != c->non_cachable_font)
+ CacheFontPattern(patternCache, c->origFontName, c->origFontNameLen,
+ pfont);
+bail:
+ if (err != Successful && c->client != serverClient) {
+ SendErrorToClient(c->client, X_OpenFont, 0,
+ c->fontid, FontToXError(err));
+ }
+ if (c->slept)
+ ClientWakeup(c->client);
+ for (i = 0; i < c->num_fpes; i++) {
+ FreeFPE(c->fpe_list[i]);
+ }
+ xfree(c->fpe_list);
+ xfree(c->fontname);
+ xfree(c);
+ return TRUE;
+}
+
+int
+OpenFont(ClientPtr client, XID fid, Mask flags, unsigned lenfname, char *pfontname)
+{
+ OFclosurePtr c;
+ int i;
+ FontPtr cached = (FontPtr)0;
+
+#ifdef FONTDEBUG
+ char *f;
+ f = xalloc(lenfname + 1);
+ memmove(f, pfontname, lenfname);
+ f[lenfname] = '\0';
+ ErrorF("[dix] OpenFont: fontname is \"%s\"\n", f);
+ xfree(f);
+#endif
+ if (!lenfname || lenfname > XLFDMAXFONTNAMELEN)
+ return BadName;
+ if (patternCache)
+ {
+
+ /*
+ ** Check name cache. If we find a cached version of this font that
+ ** is cachable, immediately satisfy the request with it. If we find
+ ** a cached version of this font that is non-cachable, we do not
+ ** satisfy the request with it. Instead, we pass the FontPtr to the
+ ** FPE's open_font code (the fontfile FPE in turn passes the
+ ** information to the rasterizer; the fserve FPE ignores it).
+ **
+ ** Presumably, the font is marked non-cachable because the FPE has
+ ** put some licensing restrictions on it. If the FPE, using
+ ** whatever logic it relies on, determines that it is willing to
+ ** share this existing font with the client, then it has the option
+ ** to return the FontPtr we passed it as the newly-opened font.
+ ** This allows the FPE to exercise its licensing logic without
+ ** having to create another instance of a font that already exists.
+ */
+
+ cached = FindCachedFontPattern(patternCache, pfontname, lenfname);
+ if (cached && cached->info.cachable)
+ {
+ if (!AddResource(fid, RT_FONT, (pointer) cached))
+ return BadAlloc;
+ cached->refcnt++;
+ return Success;
+ }
+ }
+ c = xalloc(sizeof(OFclosureRec));
+ if (!c)
+ return BadAlloc;
+ c->fontname = xalloc(lenfname);
+ c->origFontName = pfontname;
+ c->origFontNameLen = lenfname;
+ if (!c->fontname) {
+ xfree(c);
+ return BadAlloc;
+ }
+ /*
+ * copy the current FPE list, so that if it gets changed by another client
+ * while we're blocking, the request still appears atomic
+ */
+ c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
+ if (!c->fpe_list) {
+ xfree(c->fontname);
+ xfree(c);
+ return BadAlloc;
+ }
+ memmove(c->fontname, pfontname, lenfname);
+ for (i = 0; i < num_fpes; i++) {
+ c->fpe_list[i] = font_path_elements[i];
+ UseFPE(c->fpe_list[i]);
+ }
+ c->client = client;
+ c->fontid = fid;
+ c->current_fpe = 0;
+ c->num_fpes = num_fpes;
+ c->fnamelen = lenfname;
+ c->slept = FALSE;
+ c->flags = flags;
+ c->non_cachable_font = cached;
+
+ (void) doOpenFont(client, c);
+ return Success;
+}
+
+/**
+ * Decrement font's ref count, and free storage if ref count equals zero
+ *
+ * \param value must conform to DeleteType
+ */
+int
+CloseFont(pointer value, XID fid)
+{
+ int nscr;
+ ScreenPtr pscr;
+ FontPathElementPtr fpe;
+ FontPtr pfont = (FontPtr)value;
+
+ if (pfont == NullFont)
+ return (Success);
+ if (--pfont->refcnt == 0) {
+ if (patternCache)
+ RemoveCachedFontPattern (patternCache, pfont);
+ /*
+ * since the last reference is gone, ask each screen to free any
+ * storage it may have allocated locally for it.
+ */
+ for (nscr = 0; nscr < screenInfo.numScreens; nscr++) {
+ pscr = screenInfo.screens[nscr];
+ if (pscr->UnrealizeFont)
+ (*pscr->UnrealizeFont) (pscr, pfont);
+ }
+ if (pfont == defaultFont)
+ defaultFont = NULL;
+#ifdef XF86BIGFONT
+ XF86BigfontFreeFontShm(pfont);
+#endif
+ fpe = pfont->fpe;
+ (*fpe_functions[fpe->type].close_font) (fpe, pfont);
+ FreeFPE(fpe);
+ }
+ return (Success);
+}
+
+
+/***====================================================================***/
+
+/**
+ * Sets up pReply as the correct QueryFontReply for pFont with the first
+ * nProtoCCIStructs char infos.
+ *
+ * \param pReply caller must allocate this storage
+ */
+void
+QueryFont(FontPtr pFont, xQueryFontReply *pReply, int nProtoCCIStructs)
+{
+ FontPropPtr pFP;
+ int r,
+ c,
+ i;
+ xFontProp *prFP;
+ xCharInfo *prCI;
+ xCharInfo *charInfos[256];
+ unsigned char chars[512];
+ int ninfos;
+ unsigned long ncols;
+ unsigned long count;
+
+ /* pr->length set in dispatch */
+ pReply->minCharOrByte2 = pFont->info.firstCol;
+ pReply->defaultChar = pFont->info.defaultCh;
+ pReply->maxCharOrByte2 = pFont->info.lastCol;
+ pReply->drawDirection = pFont->info.drawDirection;
+ pReply->allCharsExist = pFont->info.allExist;
+ pReply->minByte1 = pFont->info.firstRow;
+ pReply->maxByte1 = pFont->info.lastRow;
+ pReply->fontAscent = pFont->info.fontAscent;
+ pReply->fontDescent = pFont->info.fontDescent;
+
+ pReply->minBounds = pFont->info.ink_minbounds;
+ pReply->maxBounds = pFont->info.ink_maxbounds;
+
+ pReply->nFontProps = pFont->info.nprops;
+ pReply->nCharInfos = nProtoCCIStructs;
+
+ for (i = 0, pFP = pFont->info.props, prFP = (xFontProp *) (&pReply[1]);
+ i < pFont->info.nprops;
+ i++, pFP++, prFP++) {
+ prFP->name = pFP->name;
+ prFP->value = pFP->value;
+ }
+
+ ninfos = 0;
+ ncols = (unsigned long) (pFont->info.lastCol - pFont->info.firstCol + 1);
+ prCI = (xCharInfo *) (prFP);
+ for (r = pFont->info.firstRow;
+ ninfos < nProtoCCIStructs && r <= (int)pFont->info.lastRow;
+ r++) {
+ i = 0;
+ for (c = pFont->info.firstCol; c <= (int)pFont->info.lastCol; c++) {
+ chars[i++] = r;
+ chars[i++] = c;
+ }
+ (*pFont->get_metrics) (pFont, ncols, chars,
+ TwoD16Bit, &count, charInfos);
+ i = 0;
+ for (i = 0; i < (int) count && ninfos < nProtoCCIStructs; i++) {
+ *prCI = *charInfos[i];
+ prCI++;
+ ninfos++;
+ }
+ }
+ return;
+}
+
+static Bool
+doListFontsAndAliases(ClientPtr client, LFclosurePtr c)
+{
+ FontPathElementPtr fpe;
+ int err = Successful;
+ FontNamesPtr names = NULL;
+ char *name, *resolved=NULL;
+ int namelen, resolvedlen;
+ int nnames;
+ int stringLens;
+ int i;
+ xListFontsReply reply;
+ char *bufptr;
+ char *bufferStart;
+ int aliascount = 0;
+
+ if (client->clientGone)
+ {
+ if (c->current.current_fpe < c->num_fpes)
+ {
+ fpe = c->fpe_list[c->current.current_fpe];
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ }
+ err = Successful;
+ goto bail;
+ }
+
+ if (!c->current.patlen)
+ goto finish;
+
+ while (c->current.current_fpe < c->num_fpes) {
+ fpe = c->fpe_list[c->current.current_fpe];
+ err = Successful;
+
+ if (!fpe_functions[fpe->type].start_list_fonts_and_aliases)
+ {
+ /* This FPE doesn't support/require list_fonts_and_aliases */
+
+ err = (*fpe_functions[fpe->type].list_fonts)
+ ((pointer) c->client, fpe, c->current.pattern,
+ c->current.patlen, c->current.max_names - c->names->nnames,
+ c->names);
+
+ if (err == Suspended) {
+ if (!c->slept) {
+ c->slept = TRUE;
+ ClientSleep(client,
+ (ClientSleepProcPtr)doListFontsAndAliases,
+ (pointer) c);
+ }
+ return TRUE;
+ }
+
+ err = BadFontName;
+ }
+ else
+ {
+ /* Start of list_fonts_and_aliases functionality. Modeled
+ after list_fonts_with_info in that it resolves aliases,
+ except that the information collected from FPEs is just
+ names, not font info. Each list_next_font_or_alias()
+ returns either a name into name/namelen or an alias into
+ name/namelen and its target name into resolved/resolvedlen.
+ The code at this level then resolves the alias by polling
+ the FPEs. */
+
+ if (!c->current.list_started) {
+ err = (*fpe_functions[fpe->type].start_list_fonts_and_aliases)
+ ((pointer) c->client, fpe, c->current.pattern,
+ c->current.patlen, c->current.max_names - c->names->nnames,
+ &c->current.private);
+ if (err == Suspended) {
+ if (!c->slept) {
+ ClientSleep(client,
+ (ClientSleepProcPtr)doListFontsAndAliases,
+ (pointer) c);
+ c->slept = TRUE;
+ }
+ return TRUE;
+ }
+ if (err == Successful)
+ c->current.list_started = TRUE;
+ }
+ if (err == Successful) {
+ char *tmpname;
+ name = 0;
+ err = (*fpe_functions[fpe->type].list_next_font_or_alias)
+ ((pointer) c->client, fpe, &name, &namelen, &tmpname,
+ &resolvedlen, c->current.private);
+ if (err == Suspended) {
+ if (!c->slept) {
+ ClientSleep(client,
+ (ClientSleepProcPtr)doListFontsAndAliases,
+ (pointer) c);
+ c->slept = TRUE;
+ }
+ return TRUE;
+ }
+ if (err == FontNameAlias) {
+ if (resolved) xfree(resolved);
+ resolved = xalloc(resolvedlen + 1);
+ if (resolved)
+ memmove(resolved, tmpname, resolvedlen + 1);
+ }
+ }
+
+ if (err == Successful)
+ {
+ if (c->haveSaved)
+ {
+ if (c->savedName)
+ (void)AddFontNamesName(c->names, c->savedName,
+ c->savedNameLen);
+ }
+ else
+ (void)AddFontNamesName(c->names, name, namelen);
+ }
+
+ /*
+ * When we get an alias back, save our state and reset back to
+ * the start of the FPE looking for the specified name. As
+ * soon as a real font is found for the alias, pop back to the
+ * old state
+ */
+ else if (err == FontNameAlias) {
+ char tmp_pattern[XLFDMAXFONTNAMELEN];
+ /*
+ * when an alias recurses, we need to give
+ * the last FPE a chance to clean up; so we call
+ * it again, and assume that the error returned
+ * is BadFontName, indicating the alias resolution
+ * is complete.
+ */
+ memmove(tmp_pattern, resolved, resolvedlen);
+ if (c->haveSaved)
+ {
+ char *tmpname;
+ int tmpnamelen;
+
+ tmpname = 0;
+ (void) (*fpe_functions[fpe->type].list_next_font_or_alias)
+ ((pointer) c->client, fpe, &tmpname, &tmpnamelen,
+ &tmpname, &tmpnamelen, c->current.private);
+ if (--aliascount <= 0)
+ {
+ err = BadFontName;
+ goto ContBadFontName;
+ }
+ }
+ else
+ {
+ c->saved = c->current;
+ c->haveSaved = TRUE;
+ if (c->savedName)
+ xfree(c->savedName);
+ c->savedName = xalloc(namelen + 1);
+ if (c->savedName)
+ memmove(c->savedName, name, namelen + 1);
+ c->savedNameLen = namelen;
+ aliascount = 20;
+ }
+ memmove(c->current.pattern, tmp_pattern, resolvedlen);
+ c->current.patlen = resolvedlen;
+ c->current.max_names = c->names->nnames + 1;
+ c->current.current_fpe = -1;
+ c->current.private = 0;
+ err = BadFontName;
+ }
+ }
+ /*
+ * At the end of this FPE, step to the next. If we've finished
+ * processing an alias, pop state back. If we've collected enough
+ * font names, quit.
+ */
+ if (err == BadFontName) {
+ ContBadFontName: ;
+ c->current.list_started = FALSE;
+ c->current.current_fpe++;
+ err = Successful;
+ if (c->haveSaved)
+ {
+ if (c->names->nnames == c->current.max_names ||
+ c->current.current_fpe == c->num_fpes) {
+ c->haveSaved = FALSE;
+ c->current = c->saved;
+ /* Give the saved namelist a chance to clean itself up */
+ continue;
+ }
+ }
+ if (c->names->nnames == c->current.max_names)
+ break;
+ }
+ }
+
+ /*
+ * send the reply
+ */
+ if (err != Successful) {
+ SendErrorToClient(client, X_ListFonts, 0, 0, FontToXError(err));
+ goto bail;
+ }
+
+finish:
+
+ names = c->names;
+ nnames = names->nnames;
+ client = c->client;
+ stringLens = 0;
+ for (i = 0; i < nnames; i++)
+ stringLens += (names->length[i] <= 255) ? names->length[i] : 0;
+
+ memset(&reply, 0, sizeof(xListFontsReply));
+ reply.type = X_Reply;
+ reply.length = bytes_to_int32(stringLens + nnames);
+ reply.nFonts = nnames;
+ reply.sequenceNumber = client->sequence;
+
+ bufptr = bufferStart = xalloc(reply.length << 2);
+
+ if (!bufptr && reply.length) {
+ SendErrorToClient(client, X_ListFonts, 0, 0, BadAlloc);
+ goto bail;
+ }
+ /*
+ * since WriteToClient long word aligns things, copy to temp buffer and
+ * write all at once
+ */
+ for (i = 0; i < nnames; i++) {
+ if (names->length[i] > 255)
+ reply.nFonts--;
+ else
+ {
+ *bufptr++ = names->length[i];
+ memmove( bufptr, names->names[i], names->length[i]);
+ bufptr += names->length[i];
+ }
+ }
+ nnames = reply.nFonts;
+ reply.length = bytes_to_int32(stringLens + nnames);
+ client->pSwapReplyFunc = ReplySwapVector[X_ListFonts];
+ WriteSwappedDataToClient(client, sizeof(xListFontsReply), &reply);
+ (void) WriteToClient(client, stringLens + nnames, bufferStart);
+ xfree(bufferStart);
+
+bail:
+ if (c->slept)
+ ClientWakeup(client);
+ for (i = 0; i < c->num_fpes; i++)
+ FreeFPE(c->fpe_list[i]);
+ xfree(c->fpe_list);
+ if (c->savedName) xfree(c->savedName);
+ FreeFontNames(names);
+ xfree(c);
+ if (resolved) xfree(resolved);
+ return TRUE;
+}
+
+int
+ListFonts(ClientPtr client, unsigned char *pattern, unsigned length,
+ unsigned max_names)
+{
+ int i;
+ LFclosurePtr c;
+
+ /*
+ * The right error to return here would be BadName, however the
+ * specification does not allow for a Name error on this request.
+ * Perhaps a better solution would be to return a nil list, i.e.
+ * a list containing zero fontnames.
+ */
+ if (length > XLFDMAXFONTNAMELEN)
+ return BadAlloc;
+
+ i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
+ if (i != Success)
+ return i;
+
+ if (!(c = xalloc(sizeof *c)))
+ return BadAlloc;
+ c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
+ if (!c->fpe_list) {
+ xfree(c);
+ return BadAlloc;
+ }
+ c->names = MakeFontNamesRecord(max_names < 100 ? max_names : 100);
+ if (!c->names)
+ {
+ xfree(c->fpe_list);
+ xfree(c);
+ return BadAlloc;
+ }
+ memmove( c->current.pattern, pattern, length);
+ for (i = 0; i < num_fpes; i++) {
+ c->fpe_list[i] = font_path_elements[i];
+ UseFPE(c->fpe_list[i]);
+ }
+ c->client = client;
+ c->num_fpes = num_fpes;
+ c->current.patlen = length;
+ c->current.current_fpe = 0;
+ c->current.max_names = max_names;
+ c->current.list_started = FALSE;
+ c->current.private = 0;
+ c->haveSaved = FALSE;
+ c->slept = FALSE;
+ c->savedName = 0;
+ doListFontsAndAliases(client, c);
+ return Success;
+}
+
+int
+doListFontsWithInfo(ClientPtr client, LFWIclosurePtr c)
+{
+ FontPathElementPtr fpe;
+ int err = Successful;
+ char *name;
+ int namelen;
+ int numFonts;
+ FontInfoRec fontInfo,
+ *pFontInfo;
+ xListFontsWithInfoReply *reply;
+ int length;
+ xFontProp *pFP;
+ int i;
+ int aliascount = 0;
+ xListFontsWithInfoReply finalReply;
+
+ if (client->clientGone)
+ {
+ if (c->current.current_fpe < c->num_fpes)
+ {
+ fpe = c->fpe_list[c->current.current_fpe];
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ }
+ err = Successful;
+ goto bail;
+ }
+ client->pSwapReplyFunc = ReplySwapVector[X_ListFontsWithInfo];
+ if (!c->current.patlen)
+ goto finish;
+ while (c->current.current_fpe < c->num_fpes)
+ {
+ fpe = c->fpe_list[c->current.current_fpe];
+ err = Successful;
+ if (!c->current.list_started)
+ {
+ err = (*fpe_functions[fpe->type].start_list_fonts_with_info)
+ (client, fpe, c->current.pattern, c->current.patlen,
+ c->current.max_names, &c->current.private);
+ if (err == Suspended)
+ {
+ if (!c->slept)
+ {
+ ClientSleep(client, (ClientSleepProcPtr)doListFontsWithInfo, c);
+ c->slept = TRUE;
+ }
+ return TRUE;
+ }
+ if (err == Successful)
+ c->current.list_started = TRUE;
+ }
+ if (err == Successful)
+ {
+ name = 0;
+ pFontInfo = &fontInfo;
+ err = (*fpe_functions[fpe->type].list_next_font_with_info)
+ (client, fpe, &name, &namelen, &pFontInfo,
+ &numFonts, c->current.private);
+ if (err == Suspended)
+ {
+ if (!c->slept)
+ {
+ ClientSleep(client,
+ (ClientSleepProcPtr)doListFontsWithInfo,
+ c);
+ c->slept = TRUE;
+ }
+ return TRUE;
+ }
+ }
+ /*
+ * When we get an alias back, save our state and reset back to the
+ * start of the FPE looking for the specified name. As soon as a real
+ * font is found for the alias, pop back to the old state
+ */
+ if (err == FontNameAlias)
+ {
+ /*
+ * when an alias recurses, we need to give
+ * the last FPE a chance to clean up; so we call
+ * it again, and assume that the error returned
+ * is BadFontName, indicating the alias resolution
+ * is complete.
+ */
+ if (c->haveSaved)
+ {
+ char *tmpname;
+ int tmpnamelen;
+ FontInfoPtr tmpFontInfo;
+
+ tmpname = 0;
+ tmpFontInfo = &fontInfo;
+ (void) (*fpe_functions[fpe->type].list_next_font_with_info)
+ (client, fpe, &tmpname, &tmpnamelen, &tmpFontInfo,
+ &numFonts, c->current.private);
+ if (--aliascount <= 0)
+ {
+ err = BadFontName;
+ goto ContBadFontName;
+ }
+ }
+ else
+ {
+ c->saved = c->current;
+ c->haveSaved = TRUE;
+ c->savedNumFonts = numFonts;
+ if (c->savedName)
+ xfree(c->savedName);
+ c->savedName = xalloc(namelen + 1);
+ if (c->savedName)
+ memmove(c->savedName, name, namelen + 1);
+ aliascount = 20;
+ }
+ memmove(c->current.pattern, name, namelen);
+ c->current.patlen = namelen;
+ c->current.max_names = 1;
+ c->current.current_fpe = 0;
+ c->current.private = 0;
+ c->current.list_started = FALSE;
+ }
+ /*
+ * At the end of this FPE, step to the next. If we've finished
+ * processing an alias, pop state back. If we've sent enough font
+ * names, quit. Always wait for BadFontName to let the FPE
+ * have a chance to clean up.
+ */
+ else if (err == BadFontName)
+ {
+ ContBadFontName: ;
+ c->current.list_started = FALSE;
+ c->current.current_fpe++;
+ err = Successful;
+ if (c->haveSaved)
+ {
+ if (c->current.max_names == 0 ||
+ c->current.current_fpe == c->num_fpes)
+ {
+ c->haveSaved = FALSE;
+ c->saved.max_names -= (1 - c->current.max_names);
+ c->current = c->saved;
+ }
+ }
+ else if (c->current.max_names == 0)
+ break;
+ }
+ else if (err == Successful)
+ {
+ length = sizeof(*reply) + pFontInfo->nprops * sizeof(xFontProp);
+ reply = c->reply;
+ if (c->length < length)
+ {
+ reply = (xListFontsWithInfoReply *) xrealloc(c->reply, length);
+ if (!reply)
+ {
+ err = AllocError;
+ break;
+ }
+ memset((char*)reply + c->length, 0, length - c->length);
+ c->reply = reply;
+ c->length = length;
+ }
+ if (c->haveSaved)
+ {
+ numFonts = c->savedNumFonts;
+ name = c->savedName;
+ namelen = strlen(name);
+ }
+ reply->type = X_Reply;
+ reply->length = bytes_to_int32(sizeof *reply - sizeof(xGenericReply) +
+ pFontInfo->nprops * sizeof(xFontProp) +
+ namelen);
+ reply->sequenceNumber = client->sequence;
+ reply->nameLength = namelen;
+ reply->minBounds = pFontInfo->ink_minbounds;
+ reply->maxBounds = pFontInfo->ink_maxbounds;
+ reply->minCharOrByte2 = pFontInfo->firstCol;
+ reply->maxCharOrByte2 = pFontInfo->lastCol;
+ reply->defaultChar = pFontInfo->defaultCh;
+ reply->nFontProps = pFontInfo->nprops;
+ reply->drawDirection = pFontInfo->drawDirection;
+ reply->minByte1 = pFontInfo->firstRow;
+ reply->maxByte1 = pFontInfo->lastRow;
+ reply->allCharsExist = pFontInfo->allExist;
+ reply->fontAscent = pFontInfo->fontAscent;
+ reply->fontDescent = pFontInfo->fontDescent;
+ reply->nReplies = numFonts;
+ pFP = (xFontProp *) (reply + 1);
+ for (i = 0; i < pFontInfo->nprops; i++)
+ {
+ pFP->name = pFontInfo->props[i].name;
+ pFP->value = pFontInfo->props[i].value;
+ pFP++;
+ }
+ WriteSwappedDataToClient(client, length, reply);
+ (void) WriteToClient(client, namelen, name);
+ if (pFontInfo == &fontInfo)
+ {
+ xfree(fontInfo.props);
+ xfree(fontInfo.isStringProp);
+ }
+ --c->current.max_names;
+ }
+ }
+finish:
+ length = sizeof(xListFontsWithInfoReply);
+ bzero((char *) &finalReply, sizeof(xListFontsWithInfoReply));
+ finalReply.type = X_Reply;
+ finalReply.sequenceNumber = client->sequence;
+ finalReply.length = bytes_to_int32(sizeof(xListFontsWithInfoReply)
+ - sizeof(xGenericReply));
+ WriteSwappedDataToClient(client, length, &finalReply);
+bail:
+ if (c->slept)
+ ClientWakeup(client);
+ for (i = 0; i < c->num_fpes; i++)
+ FreeFPE(c->fpe_list[i]);
+ xfree(c->reply);
+ xfree(c->fpe_list);
+ if (c->savedName) xfree(c->savedName);
+ xfree(c);
+ return TRUE;
+}
+
+int
+StartListFontsWithInfo(ClientPtr client, int length, unsigned char *pattern,
+ int max_names)
+{
+ int i;
+ LFWIclosurePtr c;
+
+ /*
+ * The right error to return here would be BadName, however the
+ * specification does not allow for a Name error on this request.
+ * Perhaps a better solution would be to return a nil list, i.e.
+ * a list containing zero fontnames.
+ */
+ if (length > XLFDMAXFONTNAMELEN)
+ return BadAlloc;
+
+ i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
+ if (i != Success)
+ return i;
+
+ if (!(c = xalloc(sizeof *c)))
+ goto badAlloc;
+ c->fpe_list = xalloc(sizeof(FontPathElementPtr) * num_fpes);
+ if (!c->fpe_list)
+ {
+ xfree(c);
+ goto badAlloc;
+ }
+ memmove(c->current.pattern, pattern, length);
+ for (i = 0; i < num_fpes; i++)
+ {
+ c->fpe_list[i] = font_path_elements[i];
+ UseFPE(c->fpe_list[i]);
+ }
+ c->client = client;
+ c->num_fpes = num_fpes;
+ c->reply = 0;
+ c->length = 0;
+ c->current.patlen = length;
+ c->current.current_fpe = 0;
+ c->current.max_names = max_names;
+ c->current.list_started = FALSE;
+ c->current.private = 0;
+ c->savedNumFonts = 0;
+ c->haveSaved = FALSE;
+ c->slept = FALSE;
+ c->savedName = 0;
+ doListFontsWithInfo(client, c);
+ return Success;
+badAlloc:
+ return BadAlloc;
+}
+
+#define TextEltHeader 2
+#define FontShiftSize 5
+static XID clearGC[] = { CT_NONE };
+#define clearGCmask (GCClipMask)
+
+int
+doPolyText(ClientPtr client, PTclosurePtr c)
+{
+ FontPtr pFont = c->pGC->font, oldpFont;
+ Font fid, oldfid;
+ int err = Success, lgerr; /* err is in X error, not font error, space */
+ enum { NEVER_SLEPT, START_SLEEP, SLEEPING } client_state = NEVER_SLEPT;
+ FontPathElementPtr fpe;
+ GC *origGC = NULL;
+
+ if (client->clientGone)
+ {
+ fpe = c->pGC->font->fpe;
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+
+ if (c->slept)
+ {
+ /* Client has died, but we cannot bail out right now. We
+ need to clean up after the work we did when going to
+ sleep. Setting the drawable pointer to 0 makes this
+ happen without any attempts to render or perform other
+ unnecessary activities. */
+ c->pDraw = (DrawablePtr)0;
+ }
+ else
+ {
+ err = Success;
+ goto bail;
+ }
+ }
+
+ /* Make sure our drawable hasn't disappeared while we slept. */
+ if (c->slept && c->pDraw)
+ {
+ DrawablePtr pDraw;
+ dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
+ if (c->pDraw != pDraw) {
+ /* Our drawable has disappeared. Treat like client died... ask
+ the FPE code to clean up after client and avoid further
+ rendering while we clean up after ourself. */
+ fpe = c->pGC->font->fpe;
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ c->pDraw = (DrawablePtr)0;
+ }
+ }
+
+ client_state = c->slept ? SLEEPING : NEVER_SLEPT;
+
+ while (c->endReq - c->pElt > TextEltHeader)
+ {
+ if (*c->pElt == FontChange)
+ {
+ if (c->endReq - c->pElt < FontShiftSize)
+ {
+ err = BadLength;
+ goto bail;
+ }
+
+ oldpFont = pFont;
+ oldfid = fid;
+
+ fid = ((Font)*(c->pElt+4)) /* big-endian */
+ | ((Font)*(c->pElt+3)) << 8
+ | ((Font)*(c->pElt+2)) << 16
+ | ((Font)*(c->pElt+1)) << 24;
+ err = dixLookupResourceByType((pointer *)&pFont, fid, RT_FONT,
+ client, DixReadAccess);
+ if (err != Success)
+ {
+ err = (err == BadValue) ? BadFont : err;
+ /* restore pFont and fid for step 4 (described below) */
+ pFont = oldpFont;
+ fid = oldfid;
+
+ /* If we're in START_SLEEP mode, the following step
+ shortens the request... in the unlikely event that
+ the fid somehow becomes valid before we come through
+ again to actually execute the polytext, which would
+ then mess up our refcounting scheme badly. */
+ c->err = err;
+ c->endReq = c->pElt;
+
+ goto bail;
+ }
+
+ /* Step 3 (described below) on our new font */
+ if (client_state == START_SLEEP)
+ pFont->refcnt++;
+ else
+ {
+ if (pFont != c->pGC->font && c->pDraw)
+ {
+ ChangeGC( c->pGC, GCFont, &fid);
+ ValidateGC(c->pDraw, c->pGC);
+ if (c->reqType == X_PolyText8)
+ c->polyText = (PolyTextPtr) c->pGC->ops->PolyText8;
+ else
+ c->polyText = (PolyTextPtr) c->pGC->ops->PolyText16;
+ }
+
+ /* Undo the refcnt++ we performed when going to sleep */
+ if (client_state == SLEEPING)
+ (void)CloseFont(c->pGC->font, (Font)0);
+ }
+ c->pElt += FontShiftSize;
+ }
+ else /* print a string */
+ {
+ unsigned char *pNextElt;
+ pNextElt = c->pElt + TextEltHeader + (*c->pElt)*c->itemSize;
+ if ( pNextElt > c->endReq)
+ {
+ err = BadLength;
+ goto bail;
+ }
+ if (client_state == START_SLEEP)
+ {
+ c->pElt = pNextElt;
+ continue;
+ }
+ if (c->pDraw)
+ {
+ lgerr = LoadGlyphs(client, c->pGC->font, *c->pElt, c->itemSize,
+ c->pElt + TextEltHeader);
+ }
+ else lgerr = Successful;
+
+ if (lgerr == Suspended)
+ {
+ if (!c->slept) {
+ int len;
+ GC *pGC;
+ PTclosurePtr new_closure;
+
+ /* We're putting the client to sleep. We need to do a few things
+ to ensure successful and atomic-appearing execution of the
+ remainder of the request. First, copy the remainder of the
+ request into a safe malloc'd area. Second, create a scratch GC
+ to use for the remainder of the request. Third, mark all fonts
+ referenced in the remainder of the request to prevent their
+ deallocation. Fourth, make the original GC look like the
+ request has completed... set its font to the final font value
+ from this request. These GC manipulations are for the unlikely
+ (but possible) event that some other client is using the GC.
+ Steps 3 and 4 are performed by running this procedure through
+ the remainder of the request in a special no-render mode
+ indicated by client_state = START_SLEEP. */
+
+ /* Step 1 */
+ /* Allocate a malloc'd closure structure to replace
+ the local one we were passed */
+ new_closure = xalloc(sizeof(PTclosureRec));
+ if (!new_closure)
+ {
+ err = BadAlloc;
+ goto bail;
+ }
+ *new_closure = *c;
+ c = new_closure;
+
+ len = c->endReq - c->pElt;
+ c->data = xalloc(len);
+ if (!c->data)
+ {
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ memmove(c->data, c->pElt, len);
+ c->pElt = c->data;
+ c->endReq = c->pElt + len;
+
+ /* Step 2 */
+
+ pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen);
+ if (!pGC)
+ {
+ xfree(c->data);
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ if ((err = CopyGC(c->pGC, pGC, GCFunction |
+ GCPlaneMask | GCForeground |
+ GCBackground | GCFillStyle |
+ GCTile | GCStipple |
+ GCTileStipXOrigin |
+ GCTileStipYOrigin | GCFont |
+ GCSubwindowMode | GCClipXOrigin |
+ GCClipYOrigin | GCClipMask)) !=
+ Success)
+ {
+ FreeScratchGC(pGC);
+ xfree(c->data);
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ origGC = c->pGC;
+ c->pGC = pGC;
+ ValidateGC(c->pDraw, c->pGC);
+
+ c->slept = TRUE;
+ ClientSleep(client,
+ (ClientSleepProcPtr)doPolyText,
+ (pointer) c);
+
+ /* Set up to perform steps 3 and 4 */
+ client_state = START_SLEEP;
+ continue; /* on to steps 3 and 4 */
+ }
+ return TRUE;
+ }
+ else if (lgerr != Successful)
+ {
+ err = FontToXError(lgerr);
+ goto bail;
+ }
+ if (c->pDraw)
+ {
+ c->xorg += *((INT8 *)(c->pElt + 1)); /* must be signed */
+ c->xorg = (* c->polyText)(c->pDraw, c->pGC, c->xorg, c->yorg,
+ *c->pElt, c->pElt + TextEltHeader);
+ }
+ c->pElt = pNextElt;
+ }
+ }
+
+bail:
+
+ if (client_state == START_SLEEP)
+ {
+ /* Step 4 */
+ if (pFont != origGC->font)
+ {
+ ChangeGC(origGC, GCFont, &fid);
+ ValidateGC(c->pDraw, origGC);
+ }
+
+ /* restore pElt pointer for execution of remainder of the request */
+ c->pElt = c->data;
+ return TRUE;
+ }
+
+ if (c->err != Success) err = c->err;
+ if (err != Success && c->client != serverClient) {
+#ifdef PANORAMIX
+ if (noPanoramiXExtension || !c->pGC->pScreen->myNum)
+#endif
+ SendErrorToClient(c->client, c->reqType, 0, 0, err);
+ }
+ if (c->slept)
+ {
+ ClientWakeup(c->client);
+ ChangeGC(c->pGC, clearGCmask, clearGC);
+
+ /* Unreference the font from the scratch GC */
+ CloseFont(c->pGC->font, (Font)0);
+ c->pGC->font = NullFont;
+
+ FreeScratchGC(c->pGC);
+ xfree(c->data);
+ xfree(c);
+ }
+ return TRUE;
+}
+
+int
+PolyText(ClientPtr client, DrawablePtr pDraw, GC *pGC, unsigned char *pElt,
+ unsigned char *endReq, int xorg, int yorg, int reqType, XID did)
+{
+ PTclosureRec local_closure;
+
+ local_closure.pElt = pElt;
+ local_closure.endReq = endReq;
+ local_closure.client = client;
+ local_closure.pDraw = pDraw;
+ local_closure.xorg = xorg;
+ local_closure.yorg = yorg;
+ if ((local_closure.reqType = reqType) == X_PolyText8)
+ {
+ local_closure.polyText = (PolyTextPtr) pGC->ops->PolyText8;
+ local_closure.itemSize = 1;
+ }
+ else
+ {
+ local_closure.polyText = (PolyTextPtr) pGC->ops->PolyText16;
+ local_closure.itemSize = 2;
+ }
+ local_closure.pGC = pGC;
+ local_closure.did = did;
+ local_closure.err = Success;
+ local_closure.slept = FALSE;
+
+ (void) doPolyText(client, &local_closure);
+ return Success;
+}
+
+
+#undef TextEltHeader
+#undef FontShiftSize
+
+int
+doImageText(ClientPtr client, ITclosurePtr c)
+{
+ int err = Success, lgerr; /* err is in X error, not font error, space */
+ FontPathElementPtr fpe;
+
+ if (client->clientGone)
+ {
+ fpe = c->pGC->font->fpe;
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ err = Success;
+ goto bail;
+ }
+
+ /* Make sure our drawable hasn't disappeared while we slept. */
+ if (c->slept && c->pDraw)
+ {
+ DrawablePtr pDraw;
+ dixLookupDrawable(&pDraw, c->did, client, 0, DixWriteAccess);
+ if (c->pDraw != pDraw) {
+ /* Our drawable has disappeared. Treat like client died... ask
+ the FPE code to clean up after client. */
+ fpe = c->pGC->font->fpe;
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ err = Success;
+ goto bail;
+ }
+ }
+
+ lgerr = LoadGlyphs(client, c->pGC->font, c->nChars, c->itemSize, c->data);
+ if (lgerr == Suspended)
+ {
+ if (!c->slept) {
+ GC *pGC;
+ unsigned char *data;
+ ITclosurePtr new_closure;
+
+ /* We're putting the client to sleep. We need to
+ save some state. Similar problem to that handled
+ in doPolyText, but much simpler because the
+ request structure is much simpler. */
+
+ new_closure = xalloc(sizeof(ITclosureRec));
+ if (!new_closure)
+ {
+ err = BadAlloc;
+ goto bail;
+ }
+ *new_closure = *c;
+ c = new_closure;
+
+ data = xalloc(c->nChars * c->itemSize);
+ if (!data)
+ {
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ memmove(data, c->data, c->nChars * c->itemSize);
+ c->data = data;
+
+ pGC = GetScratchGC(c->pGC->depth, c->pGC->pScreen);
+ if (!pGC)
+ {
+ xfree(c->data);
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ if ((err = CopyGC(c->pGC, pGC, GCFunction | GCPlaneMask |
+ GCForeground | GCBackground | GCFillStyle |
+ GCTile | GCStipple | GCTileStipXOrigin |
+ GCTileStipYOrigin | GCFont |
+ GCSubwindowMode | GCClipXOrigin |
+ GCClipYOrigin | GCClipMask)) != Success)
+ {
+ FreeScratchGC(pGC);
+ xfree(c->data);
+ xfree(c);
+ err = BadAlloc;
+ goto bail;
+ }
+ c->pGC = pGC;
+ ValidateGC(c->pDraw, c->pGC);
+
+ c->slept = TRUE;
+ ClientSleep(client, (ClientSleepProcPtr)doImageText, (pointer) c);
+ }
+ return TRUE;
+ }
+ else if (lgerr != Successful)
+ {
+ err = FontToXError(lgerr);
+ goto bail;
+ }
+ if (c->pDraw)
+ {
+ (* c->imageText)(c->pDraw, c->pGC, c->xorg, c->yorg,
+ c->nChars, c->data);
+ }
+
+bail:
+
+ if (err != Success && c->client != serverClient) {
+ SendErrorToClient(c->client, c->reqType, 0, 0, err);
+ }
+ if (c->slept)
+ {
+ ClientWakeup(c->client);
+ ChangeGC(c->pGC, clearGCmask, clearGC);
+
+ /* Unreference the font from the scratch GC */
+ CloseFont(c->pGC->font, (Font)0);
+ c->pGC->font = NullFont;
+
+ FreeScratchGC(c->pGC);
+ xfree(c->data);
+ xfree(c);
+ }
+ return TRUE;
+}
+
+int
+ImageText(ClientPtr client, DrawablePtr pDraw, GC *pGC, int nChars,
+ unsigned char *data, int xorg, int yorg, int reqType, XID did)
+{
+ ITclosureRec local_closure;
+
+ local_closure.client = client;
+ local_closure.pDraw = pDraw;
+ local_closure.pGC = pGC;
+ local_closure.nChars = nChars;
+ local_closure.data = data;
+ local_closure.xorg = xorg;
+ local_closure.yorg = yorg;
+ if ((local_closure.reqType = reqType) == X_ImageText8)
+ {
+ local_closure.imageText = (ImageTextPtr) pGC->ops->ImageText8;
+ local_closure.itemSize = 1;
+ }
+ else
+ {
+ local_closure.imageText = (ImageTextPtr) pGC->ops->ImageText16;
+ local_closure.itemSize = 2;
+ }
+ local_closure.did = did;
+ local_closure.slept = FALSE;
+
+ (void) doImageText(client, &local_closure);
+ return Success;
+}
+
+
+/* does the necessary magic to figure out the fpe type */
+static int
+DetermineFPEType(char *pathname)
+{
+ int i;
+
+ for (i = 0; i < num_fpe_types; i++) {
+ if ((*fpe_functions[i].name_check) (pathname))
+ return i;
+ }
+ return -1;
+}
+
+
+static void
+FreeFontPath(FontPathElementPtr *list, int n, Bool force)
+{
+ int i;
+
+ for (i = 0; i < n; i++) {
+ if (force) {
+ /* Sanity check that all refcounts will be 0 by the time
+ we get to the end of the list. */
+ int found = 1; /* the first reference is us */
+ int j;
+ for (j = i+1; j < n; j++) {
+ if (list[j] == list[i])
+ found++;
+ }
+ if (list[i]->refcount != found) {
+ list[i]->refcount = found; /* ensure it will get freed */
+ }
+ }
+ FreeFPE(list[i]);
+ }
+ xfree(list);
+}
+
+static FontPathElementPtr
+find_existing_fpe(FontPathElementPtr *list, int num, unsigned char *name, int len)
+{
+ FontPathElementPtr fpe;
+ int i;
+
+ for (i = 0; i < num; i++) {
+ fpe = list[i];
+ if (fpe->name_length == len && memcmp(name, fpe->name, len) == 0)
+ return fpe;
+ }
+ return (FontPathElementPtr) 0;
+}
+
+
+static int
+SetFontPathElements(int npaths, unsigned char *paths, int *bad, Bool persist)
+{
+ int i, err = 0;
+ int valid_paths = 0;
+ unsigned int len;
+ unsigned char *cp = paths;
+ FontPathElementPtr fpe = NULL, *fplist;
+
+ fplist = xalloc(sizeof(FontPathElementPtr) * npaths);
+ if (!fplist) {
+ *bad = 0;
+ return BadAlloc;
+ }
+ for (i = 0; i < num_fpe_types; i++) {
+ if (fpe_functions[i].set_path_hook)
+ (*fpe_functions[i].set_path_hook) ();
+ }
+ for (i = 0; i < npaths; i++)
+ {
+ len = (unsigned int) (*cp++);
+
+ if (len == 0)
+ {
+ if (persist)
+ ErrorF("[dix] Removing empty element from the valid list of fontpaths\n");
+ err = BadValue;
+ }
+ else
+ {
+ /* if it's already in our active list, just reset it */
+ /*
+ * note that this can miss FPE's in limbo -- may be worth catching
+ * them, though it'd muck up refcounting
+ */
+ fpe = find_existing_fpe(font_path_elements, num_fpes, cp, len);
+ if (fpe)
+ {
+ err = (*fpe_functions[fpe->type].reset_fpe) (fpe);
+ if (err == Successful)
+ {
+ UseFPE(fpe);/* since it'll be decref'd later when freed
+ * from the old list */
+ }
+ else
+ fpe = 0;
+ }
+ /* if error or can't do it, act like it's a new one */
+ if (!fpe)
+ {
+ fpe = xalloc(sizeof(FontPathElementRec));
+ if (!fpe)
+ {
+ err = BadAlloc;
+ goto bail;
+ }
+ fpe->name = xalloc(len + 1);
+ if (!fpe->name)
+ {
+ xfree(fpe);
+ err = BadAlloc;
+ goto bail;
+ }
+ fpe->refcount = 1;
+
+ strncpy(fpe->name, (char *) cp, (int) len);
+ fpe->name[len] = '\0';
+ fpe->name_length = len;
+ fpe->type = DetermineFPEType(fpe->name);
+ if (fpe->type == -1)
+ err = BadValue;
+ else
+ err = (*fpe_functions[fpe->type].init_fpe) (fpe);
+ if (err != Successful)
+ {
+ if (persist)
+ {
+ ErrorF("[dix] Could not init font path element %s, removing from list!\n",
+ fpe->name);
+ }
+ xfree (fpe->name);
+ xfree (fpe);
+ }
+ }
+ }
+ if (err != Successful)
+ {
+ if (!persist)
+ goto bail;
+ }
+ else
+ {
+ fplist[valid_paths++] = fpe;
+ }
+ cp += len;
+ }
+
+ FreeFontPath(font_path_elements, num_fpes, FALSE);
+ font_path_elements = fplist;
+ if (patternCache)
+ EmptyFontPatternCache(patternCache);
+ num_fpes = valid_paths;
+
+ return Success;
+bail:
+ *bad = i;
+ while (--valid_paths >= 0)
+ FreeFPE(fplist[valid_paths]);
+ xfree(fplist);
+ return FontToXError(err);
+}
+
+/* XXX -- do we need to pass error down to each renderer? */
+int
+SetFontPath(ClientPtr client, int npaths, unsigned char *paths, int *error)
+{
+ int err = XaceHook(XACE_SERVER_ACCESS, client, DixManageAccess);
+ if (err != Success)
+ return err;
+
+ if (npaths == 0) {
+ if (SetDefaultFontPath(defaultFontPath) != Success)
+ return BadValue;
+ } else {
+ err = SetFontPathElements(npaths, paths, error, FALSE);
+ }
+ return err;
+}
+
+int
+SetDefaultFontPath(char *path)
+{
+ char *temp_path,
+ *start,
+ *end;
+ unsigned char *cp,
+ *pp,
+ *nump,
+ *newpath;
+ int num = 1,
+ len,
+ err,
+ size = 0,
+ bad;
+
+ /* ensure temp_path contains "built-ins" */
+ start = path;
+ while (1) {
+ start = strstr(start, "built-ins");
+ if (start == NULL)
+ break;
+ end = start + strlen("built-ins");
+ if ((start == path || start[-1] == ',') && (!*end || *end == ','))
+ break;
+ start = end;
+ }
+ if (!start) {
+ temp_path = Xprintf("%s%sbuilt-ins", path, *path ? "," : "");
+ } else {
+ temp_path = Xstrdup(path);
+ }
+ if (!temp_path)
+ return BadAlloc;
+
+ /* get enough for string, plus values -- use up commas */
+ len = strlen(temp_path) + 1;
+ nump = cp = newpath = xalloc(len);
+ if (!newpath)
+ return BadAlloc;
+ pp = (unsigned char *) temp_path;
+ cp++;
+ while (*pp) {
+ if (*pp == ',') {
+ *nump = (unsigned char) size;
+ nump = cp++;
+ pp++;
+ num++;
+ size = 0;
+ } else {
+ *cp++ = *pp++;
+ size++;
+ }
+ }
+ *nump = (unsigned char) size;
+
+ err = SetFontPathElements(num, newpath, &bad, TRUE);
+
+ xfree(newpath);
+ xfree(temp_path);
+
+ return err;
+}
+
+int
+GetFontPath(ClientPtr client, int *count, int *length, unsigned char **result)
+{
+ int i;
+ unsigned char *c;
+ int len;
+ FontPathElementPtr fpe;
+
+ i = XaceHook(XACE_SERVER_ACCESS, client, DixGetAttrAccess);
+ if (i != Success)
+ return i;
+
+ len = 0;
+ for (i = 0; i < num_fpes; i++) {
+ fpe = font_path_elements[i];
+ len += fpe->name_length + 1;
+ }
+ font_path_string = (unsigned char *) xrealloc(font_path_string, len);
+ if (!font_path_string)
+ return BadAlloc;
+
+ c = font_path_string;
+ *length = 0;
+ for (i = 0; i < num_fpes; i++) {
+ fpe = font_path_elements[i];
+ *c = fpe->name_length;
+ *length += *c++;
+ memmove(c, fpe->name, fpe->name_length);
+ c += fpe->name_length;
+ }
+ *count = num_fpes;
+ *result = font_path_string;
+ return Success;
+}
+
+void
+DeleteClientFontStuff(ClientPtr client)
+{
+ int i;
+ FontPathElementPtr fpe;
+
+ for (i = 0; i < num_fpes; i++)
+ {
+ fpe = font_path_elements[i];
+ if (fpe_functions[fpe->type].client_died)
+ (*fpe_functions[fpe->type].client_died) ((pointer) client, fpe);
+ }
+}
+
+void
+InitFonts (void)
+{
+ patternCache = MakeFontPatternCache();
+
+ BuiltinRegisterFpeFunctions();
+ FontFileRegisterFpeFunctions();
+ fs_register_fpe_functions();
+}
+
+int
+GetDefaultPointSize (void)
+{
+ return 120;
+}
+
+
+FontResolutionPtr
+GetClientResolutions (int *num)
+{
+ static struct _FontResolution res;
+ ScreenPtr pScreen;
+
+ pScreen = screenInfo.screens[0];
+ res.x_resolution = (pScreen->width * 25.4) / pScreen->mmWidth;
+ /*
+ * XXX - we'll want this as long as bitmap instances are prevalent
+ so that we can match them from scalable fonts
+ */
+ if (res.x_resolution < 88)
+ res.x_resolution = 75;
+ else
+ res.x_resolution = 100;
+ res.y_resolution = (pScreen->height * 25.4) / pScreen->mmHeight;
+ if (res.y_resolution < 88)
+ res.y_resolution = 75;
+ else
+ res.y_resolution = 100;
+ res.point_size = 120;
+ *num = 1;
+ return &res;
+}
+
+/*
+ * returns the type index of the new fpe
+ *
+ * should be called (only once!) by each type of fpe when initialized
+ */
+
+int
+RegisterFPEFunctions(NameCheckFunc name_func,
+ InitFpeFunc init_func,
+ FreeFpeFunc free_func,
+ ResetFpeFunc reset_func,
+ OpenFontFunc open_func,
+ CloseFontFunc close_func,
+ ListFontsFunc list_func,
+ StartLfwiFunc start_lfwi_func,
+ NextLfwiFunc next_lfwi_func,
+ WakeupFpeFunc wakeup_func,
+ ClientDiedFunc client_died,
+ LoadGlyphsFunc load_glyphs,
+ StartLaFunc start_list_alias_func,
+ NextLaFunc next_list_alias_func,
+ SetPathFunc set_path_func)
+{
+ FPEFunctions *new;
+
+ /* grow the list */
+ new = (FPEFunctions *) xrealloc(fpe_functions,
+ (num_fpe_types + 1) * sizeof(FPEFunctions));
+ if (!new)
+ return -1;
+ fpe_functions = new;
+
+ fpe_functions[num_fpe_types].name_check = name_func;
+ fpe_functions[num_fpe_types].open_font = open_func;
+ fpe_functions[num_fpe_types].close_font = close_func;
+ fpe_functions[num_fpe_types].wakeup_fpe = wakeup_func;
+ fpe_functions[num_fpe_types].list_fonts = list_func;
+ fpe_functions[num_fpe_types].start_list_fonts_with_info =
+ start_lfwi_func;
+ fpe_functions[num_fpe_types].list_next_font_with_info =
+ next_lfwi_func;
+ fpe_functions[num_fpe_types].init_fpe = init_func;
+ fpe_functions[num_fpe_types].free_fpe = free_func;
+ fpe_functions[num_fpe_types].reset_fpe = reset_func;
+ fpe_functions[num_fpe_types].client_died = client_died;
+ fpe_functions[num_fpe_types].load_glyphs = load_glyphs;
+ fpe_functions[num_fpe_types].start_list_fonts_and_aliases =
+ start_list_alias_func;
+ fpe_functions[num_fpe_types].list_next_font_or_alias =
+ next_list_alias_func;
+ fpe_functions[num_fpe_types].set_path_hook = set_path_func;
+
+ return num_fpe_types++;
+}
+
+void
+FreeFonts(void)
+{
+ if (patternCache) {
+ FreeFontPatternCache(patternCache);
+ patternCache = 0;
+ }
+ FreeFontPath(font_path_elements, num_fpes, TRUE);
+ font_path_elements = 0;
+ num_fpes = 0;
+ xfree(fpe_functions);
+ num_fpe_types = 0;
+ fpe_functions = (FPEFunctions *) 0;
+}
+
+/* convenience functions for FS interface */
+
+FontPtr
+find_old_font(XID id)
+{
+ pointer pFont;
+ dixLookupResourceByType(&pFont, id, RT_NONE, serverClient, DixReadAccess);
+ return (FontPtr)pFont;
+}
+
+Font
+GetNewFontClientID(void)
+{
+ return FakeClientID(0);
+}
+
+int
+StoreFontClientFont(FontPtr pfont, Font id)
+{
+ return AddResource(id, RT_NONE, (pointer) pfont);
+}
+
+void
+DeleteFontClientID(Font id)
+{
+ FreeResource(id, RT_NONE);
+}
+
+int
+client_auth_generation(ClientPtr client)
+{
+ return 0;
+}
+
+static int fs_handlers_installed = 0;
+static unsigned int last_server_gen;
+
+int
+init_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler)
+{
+ /* if server has reset, make sure the b&w handlers are reinstalled */
+ if (last_server_gen < serverGeneration) {
+ last_server_gen = serverGeneration;
+ fs_handlers_installed = 0;
+ }
+ if (fs_handlers_installed == 0) {
+ if (!RegisterBlockAndWakeupHandlers(block_handler,
+ FontWakeup, (pointer) 0))
+ return AllocError;
+ fs_handlers_installed++;
+ }
+ QueueFontWakeup(fpe);
+ return Successful;
+}
+
+void
+remove_fs_handlers(FontPathElementPtr fpe, BlockHandlerProcPtr block_handler, Bool all)
+{
+ if (all) {
+ /* remove the handlers if no one else is using them */
+ if (--fs_handlers_installed == 0) {
+ RemoveBlockAndWakeupHandlers(block_handler, FontWakeup,
+ (pointer) 0);
+ }
+ }
+ RemoveFontWakeup(fpe);
+}
diff --git a/xorg-server/dix/events.c b/xorg-server/dix/events.c
index 8af8c5ac7..7e1d9249e 100644
--- a/xorg-server/dix/events.c
+++ b/xorg-server/dix/events.c
@@ -1,5900 +1,5903 @@
-/************************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-********************************************************/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-/*
- * Copyright © 2003-2005 Sun Microsystems, Inc. All rights reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-/** @file events.c
- * This file handles event delivery and a big part of the server-side protocol
- * handling (the parts for input devices).
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include "misc.h"
-#include "resource.h"
-#include <X11/Xproto.h>
-#include "windowstr.h"
-#include "inputstr.h"
-#include "scrnintstr.h"
-#include "cursorstr.h"
-
-#include "dixstruct.h"
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-#include "globals.h"
-
-#include <X11/extensions/XKBproto.h>
-#include "xkbsrv.h"
-#include "xace.h"
-
-#ifdef XSERVER_DTRACE
-#include <sys/types.h>
-typedef const char *string;
-#include "Xserver-dtrace.h"
-#endif
-
-#include <X11/extensions/XIproto.h>
-#include <X11/extensions/XI2proto.h>
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XI2.h>
-#include "exglobals.h"
-#include "exevents.h"
-#include "exglobals.h"
-#include "extnsionst.h"
-
-#include "dixevents.h"
-#include "dixgrabs.h"
-#include "dispatch.h"
-
-#include <X11/extensions/ge.h>
-#include "geext.h"
-#include "geint.h"
-
-#include "eventstr.h"
-#include "enterleave.h"
-#include "eventconvert.h"
-
-/* Extension events type numbering starts at EXTENSION_EVENT_BASE. */
-#define NoSuchEvent 0x80000000 /* so doesn't match NoEventMask */
-#define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask )
-#define AllButtonsMask ( \
- Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )
-#define MotionMask ( \
- PointerMotionMask | Button1MotionMask | \
- Button2MotionMask | Button3MotionMask | Button4MotionMask | \
- Button5MotionMask | ButtonMotionMask )
-#define PropagateMask ( \
- KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | \
- MotionMask )
-#define PointerGrabMask ( \
- ButtonPressMask | ButtonReleaseMask | \
- EnterWindowMask | LeaveWindowMask | \
- PointerMotionHintMask | KeymapStateMask | \
- MotionMask )
-#define AllModifiersMask ( \
- ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
- Mod3Mask | Mod4Mask | Mod5Mask )
-#define LastEventMask OwnerGrabButtonMask
-#define AllEventMasks (LastEventMask|(LastEventMask-1))
-
-
-#define CORE_EVENT(event) \
- (!((event)->u.u.type & EXTENSION_EVENT_BASE) && \
- (event)->u.u.type != GenericEvent)
-#define XI2_EVENT(event) \
- (((event)->u.u.type == GenericEvent) && \
- ((xGenericEvent*)(event))->extension == IReqCode)
-
-/**
- * Used to indicate a implicit passive grab created by a ButtonPress event.
- * See DeliverEventsToWindow().
- */
-#define ImplicitGrabMask (1 << 7)
-
-#define WID(w) ((w) ? ((w)->drawable.id) : 0)
-
-#define XE_KBPTR (xE->u.keyButtonPointer)
-
-
-#define rClient(obj) (clients[CLIENT_ID((obj)->resource)])
-
-CallbackListPtr EventCallback;
-CallbackListPtr DeviceEventCallback;
-
-#define DNPMCOUNT 8
-
-Mask DontPropagateMasks[DNPMCOUNT];
-static int DontPropagateRefCnts[DNPMCOUNT];
-
-static void CheckVirtualMotion( DeviceIntPtr pDev, QdEventPtr qe, WindowPtr pWin);
-static void CheckPhysLimits(DeviceIntPtr pDev,
- CursorPtr cursor,
- Bool generateEvents,
- Bool confineToScreen,
- ScreenPtr pScreen);
-static Bool CheckPassiveGrabsOnWindow(WindowPtr pWin,
- DeviceIntPtr device,
- DeviceEvent *event,
- BOOL checkCore);
-
-/** Key repeat hack. Do not use but in TryClientEvents */
-extern BOOL EventIsKeyRepeat(xEvent *event);
-
-/**
- * Main input device struct.
- * inputInfo.pointer
- * is the core pointer. Referred to as "virtual core pointer", "VCP",
- * "core pointer" or inputInfo.pointer. The VCP is the first master
- * pointer device and cannot be deleted.
- *
- * inputInfo.keyboard
- * is the core keyboard ("virtual core keyboard", "VCK", "core keyboard").
- * See inputInfo.pointer.
- *
- * inputInfo.devices
- * linked list containing all devices including VCP and VCK.
- *
- * inputInfo.off_devices
- * Devices that have not been initialized and are thus turned off.
- *
- * inputInfo.numDevices
- * Total number of devices.
- *
- * inputInfo.all_devices
- * Virtual device used for XIAllDevices passive grabs. This device is
- * not part of the inputInfo.devices list and mostly unset except for
- * the deviceid. It exists because passivegrabs need a valid device
- * reference.
- *
- * inputInfo.all_master_devices
- * Virtual device used for XIAllMasterDevices passive grabs. This device
- * is not part of the inputInfo.devices list and mostly unset except for
- * the deviceid. It exists because passivegrabs need a valid device
- * reference.
- */
-InputInfo inputInfo;
-
-/**
- * syncEvents is the global structure for queued events.
- *
- * Devices can be frozen through GrabModeSync pointer grabs. If this is the
- * case, events from these devices are added to "pending" instead of being
- * processed normally. When the device is unfrozen, events in "pending" are
- * replayed and processed as if they would come from the device directly.
- */
-static struct {
- QdEventPtr pending, /**< list of queued events */
- *pendtail; /**< last event in list */
- /** The device to replay events for. Only set in AllowEvents(), in which
- * case it is set to the device specified in the request. */
- DeviceIntPtr replayDev; /* kludgy rock to put flag for */
-
- /**
- * The window the events are supposed to be replayed on.
- * This window may be set to the grab's window (but only when
- * Replay{Pointer|Keyboard} is given in the XAllowEvents()
- * request. */
- WindowPtr replayWin; /* ComputeFreezes */
- /**
- * Flag to indicate whether we're in the process of
- * replaying events. Only set in ComputeFreezes(). */
- Bool playingEvents;
- TimeStamp time;
-} syncEvents;
-
-/**
- * The root window the given device is currently on.
- */
-#define RootWindow(dev) dev->spriteInfo->sprite->spriteTrace[0]
-
-static xEvent* swapEvent = NULL;
-static int swapEventLen = 0;
-
-void
-NotImplemented(xEvent *from, xEvent *to)
-{
- FatalError("Not implemented");
-}
-
-/**
- * Convert the given event type from an XI event to a core event.
- * @param[in] The XI 1.x event type.
- * @return The matching core event type or 0 if there is none.
- */
-int
-XItoCoreType(int xitype)
-{
- int coretype = 0;
- if (xitype == DeviceMotionNotify)
- coretype = MotionNotify;
- else if (xitype == DeviceButtonPress)
- coretype = ButtonPress;
- else if (xitype == DeviceButtonRelease)
- coretype = ButtonRelease;
- else if (xitype == DeviceKeyPress)
- coretype = KeyPress;
- else if (xitype == DeviceKeyRelease)
- coretype = KeyRelease;
-
- return coretype;
-}
-
-/**
- * @return true if the device owns a cursor, false if device shares a cursor
- * sprite with another device.
- */
-Bool
-DevHasCursor(DeviceIntPtr pDev)
-{
- return pDev->spriteInfo->spriteOwner;
-}
-
-/*
- * @return true if a device is a pointer, check is the same as used by XI to
- * fill the 'use' field.
- */
-Bool
-IsPointerDevice(DeviceIntPtr dev)
-{
- return (dev->type == MASTER_POINTER) ||
- (dev->valuator && dev->button) ||
- (dev->valuator && !dev->key);
-}
-
-/*
- * @return true if a device is a keyboard, check is the same as used by XI to
- * fill the 'use' field.
- *
- * Some pointer devices have keys as well (e.g. multimedia keys). Try to not
- * count them as keyboard devices.
- */
-Bool
-IsKeyboardDevice(DeviceIntPtr dev)
-{
- return (dev->type == MASTER_KEYBOARD) ||
- ((dev->key && dev->kbdfeed) && !IsPointerDevice(dev));
-}
-
-Bool
-IsMaster(DeviceIntPtr dev)
-{
- return (dev->type == MASTER_POINTER || dev->type == MASTER_KEYBOARD);
-}
-
-static WindowPtr XYToWindow(
- DeviceIntPtr pDev,
- int x,
- int y
-);
-
-/**
- * Max event opcode.
- */
-extern int lastEvent;
-
-extern int DeviceMotionNotify;
-
-#define CantBeFiltered NoEventMask
-/**
- * Event masks for each event type.
- *
- * One set of filters for each device, but only the first layer
- * is initialized. The rest is memcpy'd in InitEvents.
- *
- * Filters are used whether a given event may be delivered to a client,
- * usually in the form of if (window-event-mask & filter); then deliver event.
- *
- * One notable filter is for PointerMotion/DevicePointerMotion events. Each
- * time a button is pressed, the filter is modified to also contain the
- * matching ButtonXMotion mask.
- */
-static Mask filters[MAXDEVICES][128] = {
-{
- NoSuchEvent, /* 0 */
- NoSuchEvent, /* 1 */
- KeyPressMask, /* KeyPress */
- KeyReleaseMask, /* KeyRelease */
- ButtonPressMask, /* ButtonPress */
- ButtonReleaseMask, /* ButtonRelease */
- PointerMotionMask, /* MotionNotify (initial state) */
- EnterWindowMask, /* EnterNotify */
- LeaveWindowMask, /* LeaveNotify */
- FocusChangeMask, /* FocusIn */
- FocusChangeMask, /* FocusOut */
- KeymapStateMask, /* KeymapNotify */
- ExposureMask, /* Expose */
- CantBeFiltered, /* GraphicsExpose */
- CantBeFiltered, /* NoExpose */
- VisibilityChangeMask, /* VisibilityNotify */
- SubstructureNotifyMask, /* CreateNotify */
- StructureAndSubMask, /* DestroyNotify */
- StructureAndSubMask, /* UnmapNotify */
- StructureAndSubMask, /* MapNotify */
- SubstructureRedirectMask, /* MapRequest */
- StructureAndSubMask, /* ReparentNotify */
- StructureAndSubMask, /* ConfigureNotify */
- SubstructureRedirectMask, /* ConfigureRequest */
- StructureAndSubMask, /* GravityNotify */
- ResizeRedirectMask, /* ResizeRequest */
- StructureAndSubMask, /* CirculateNotify */
- SubstructureRedirectMask, /* CirculateRequest */
- PropertyChangeMask, /* PropertyNotify */
- CantBeFiltered, /* SelectionClear */
- CantBeFiltered, /* SelectionRequest */
- CantBeFiltered, /* SelectionNotify */
- ColormapChangeMask, /* ColormapNotify */
- CantBeFiltered, /* ClientMessage */
- CantBeFiltered /* MappingNotify */
-}};
-
-/**
- * For the given event, return the matching event filter. This filter may then
- * be AND'ed with the selected event mask.
- *
- * For XI2 events, the returned filter is simply the byte containing the event
- * mask we're interested in. E.g. for a mask of (1 << 13), this would be
- * byte[1].
- *
- * @param[in] dev The device the event belongs to, may be NULL.
- * @param[in] event The event to get the filter for. Only the type of the
- * event matters, or the extension + evtype for GenericEvents.
- * @return The filter mask for the given event.
- *
- * @see GetEventMask
- */
-Mask
-GetEventFilter(DeviceIntPtr dev, xEvent *event)
-{
- if (event->u.u.type != GenericEvent)
- return filters[dev ? dev->id : 0][event->u.u.type];
- else if (XI2_EVENT(event))
- return (1 << (((xXIDeviceEvent*)event)->evtype % 8));
- ErrorF("[dix] Unknown device type %d. No filter\n", event->u.u.type);
- return 0;
-}
-
-/**
- * Return the windows complete XI2 mask for the given XI2 event type.
- */
-Mask
-GetWindowXI2Mask(DeviceIntPtr dev, WindowPtr win, xEvent* ev)
-{
- OtherInputMasks *inputMasks = wOtherInputMasks(win);
- int filter;
- int evtype;
-
- if (!inputMasks || !XI2_EVENT(ev))
- return 0;
-
- evtype = ((xGenericEvent*)ev)->evtype;
- filter = GetEventFilter(dev, ev);
-
- return ((inputMasks->xi2mask[dev->id][evtype/8] & filter) ||
- inputMasks->xi2mask[XIAllDevices][evtype/8] ||
- (inputMasks->xi2mask[XIAllMasterDevices][evtype/8] && IsMaster(dev)));
-}
-
-static Mask
-GetEventMask(DeviceIntPtr dev, xEvent *event, InputClients* other)
-{
- /* XI2 filters are only ever 8 bit, so let's return a 8 bit mask */
- if (XI2_EVENT(event))
- {
- int byte = ((xGenericEvent*)event)->evtype / 8;
- return (other->xi2mask[dev->id][byte] |
- other->xi2mask[XIAllDevices][byte] |
- (IsMaster(dev)? other->xi2mask[XIAllMasterDevices][byte] : 0));
- } else if (CORE_EVENT(event))
- return other->mask[XIAllDevices];
- else
- return other->mask[dev->id];
-}
-
-
-static CARD8 criticalEvents[32] =
-{
- 0x7c, 0x30, 0x40 /* key, button, expose, and configure events */
-};
-
-static void
-SyntheticMotion(DeviceIntPtr dev, int x, int y) {
- int screenno = 0;
-
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- screenno = dev->spriteInfo->sprite->screen->myNum;
-#endif
- PostSyntheticMotion(dev, x, y, screenno,
- (syncEvents.playingEvents) ? syncEvents.time.milliseconds : currentTime.milliseconds);
-
-}
-
-#ifdef PANORAMIX
-static void PostNewCursor(DeviceIntPtr pDev);
-
-static Bool
-XineramaSetCursorPosition(
- DeviceIntPtr pDev,
- int x,
- int y,
- Bool generateEvent
-){
- ScreenPtr pScreen;
- BoxRec box;
- int i;
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- /* x,y are in Screen 0 coordinates. We need to decide what Screen
- to send the message too and what the coordinates relative to
- that screen are. */
-
- pScreen = pSprite->screen;
- x += panoramiXdataPtr[0].x;
- y += panoramiXdataPtr[0].y;
-
- if(!POINT_IN_REGION(pScreen, &XineramaScreenRegions[pScreen->myNum],
- x, y, &box))
- {
- FOR_NSCREENS(i)
- {
- if(i == pScreen->myNum)
- continue;
- if(POINT_IN_REGION(pScreen, &XineramaScreenRegions[i], x, y, &box))
- {
- pScreen = screenInfo.screens[i];
- break;
- }
- }
- }
-
- pSprite->screen = pScreen;
- pSprite->hotPhys.x = x - panoramiXdataPtr[0].x;
- pSprite->hotPhys.y = y - panoramiXdataPtr[0].y;
- x -= panoramiXdataPtr[pScreen->myNum].x;
- y -= panoramiXdataPtr[pScreen->myNum].y;
-
- return (*pScreen->SetCursorPosition)(pDev, pScreen, x, y, generateEvent);
-}
-
-
-static void
-XineramaConstrainCursor(DeviceIntPtr pDev)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
- ScreenPtr pScreen;
- BoxRec newBox;
-
- pScreen = pSprite->screen;
- newBox = pSprite->physLimits;
-
- /* Translate the constraining box to the screen
- the sprite is actually on */
- newBox.x1 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
- newBox.x2 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
- newBox.y1 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
- newBox.y2 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
-
- (* pScreen->ConstrainCursor)(pDev, pScreen, &newBox);
-}
-
-
-static Bool
-XineramaSetWindowPntrs(DeviceIntPtr pDev, WindowPtr pWin)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- if(pWin == WindowTable[0]) {
- memcpy(pSprite->windows, WindowTable,
- PanoramiXNumScreens*sizeof(WindowPtr));
- } else {
- PanoramiXRes *win;
- int rc, i;
-
- rc = dixLookupResourceByType((pointer *)&win, pWin->drawable.id,
- XRT_WINDOW, serverClient, DixReadAccess);
- if (rc != Success)
- return FALSE;
-
- for(i = 0; i < PanoramiXNumScreens; i++) {
- rc = dixLookupWindow(pSprite->windows + i, win->info[i].id,
- serverClient, DixReadAccess);
- if (rc != Success) /* window is being unmapped */
- return FALSE;
- }
- }
- return TRUE;
-}
-
-static void
-XineramaConfineCursorToWindow(DeviceIntPtr pDev,
- WindowPtr pWin,
- Bool generateEvents)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- int x, y, off_x, off_y, i;
-
- if(!XineramaSetWindowPntrs(pDev, pWin))
- return;
-
- i = PanoramiXNumScreens - 1;
-
- REGION_COPY(pSprite->screen, &pSprite->Reg1,
- &pSprite->windows[i]->borderSize);
- off_x = panoramiXdataPtr[i].x;
- off_y = panoramiXdataPtr[i].y;
-
- while(i--) {
- x = off_x - panoramiXdataPtr[i].x;
- y = off_y - panoramiXdataPtr[i].y;
-
- if(x || y)
- REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, x, y);
-
- REGION_UNION(pSprite->screen, &pSprite->Reg1, &pSprite->Reg1,
- &pSprite->windows[i]->borderSize);
-
- off_x = panoramiXdataPtr[i].x;
- off_y = panoramiXdataPtr[i].y;
- }
-
- pSprite->hotLimits = *REGION_EXTENTS(pSprite->screen, &pSprite->Reg1);
-
- if(REGION_NUM_RECTS(&pSprite->Reg1) > 1)
- pSprite->hotShape = &pSprite->Reg1;
- else
- pSprite->hotShape = NullRegion;
-
- pSprite->confined = FALSE;
- pSprite->confineWin = (pWin == WindowTable[0]) ? NullWindow : pWin;
-
- CheckPhysLimits(pDev, pSprite->current, generateEvents, FALSE, NULL);
-}
-
-#endif /* PANORAMIX */
-
-/**
- * Modifies the filter for the given protocol event type to the given masks.
- *
- * There's only two callers: UpdateDeviceState() and XI's SetMaskForExtEvent().
- * The latter initialises masks for the matching XI events, it's a once-off
- * setting.
- * UDS however changes the mask for MotionNotify and DeviceMotionNotify each
- * time a button is pressed to include the matching ButtonXMotion mask in the
- * filter.
- *
- * @param[in] deviceid The device to modify the filter for.
- * @param[in] mask The new filter mask.
- * @param[in] event Protocol event type.
- */
-void
-SetMaskForEvent(int deviceid, Mask mask, int event)
-{
- if (deviceid < 0 || deviceid >= MAXDEVICES)
- FatalError("SetMaskForEvent: bogus device id");
- filters[deviceid][event] = mask;
-}
-
-void
-SetCriticalEvent(int event)
-{
- if (event >= 128)
- FatalError("SetCriticalEvent: bogus event number");
- criticalEvents[event >> 3] |= 1 << (event & 7);
-}
-
-void
-ConfineToShape(DeviceIntPtr pDev, RegionPtr shape, int *px, int *py)
-{
- BoxRec box;
- int x = *px, y = *py;
- int incx = 1, incy = 1;
- SpritePtr pSprite;
-
- pSprite = pDev->spriteInfo->sprite;
- if (POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box))
- return;
- box = *REGION_EXTENTS(pSprite->hot.pScreen, shape);
- /* this is rather crude */
- do {
- x += incx;
- if (x >= box.x2)
- {
- incx = -1;
- x = *px - 1;
- }
- else if (x < box.x1)
- {
- incx = 1;
- x = *px;
- y += incy;
- if (y >= box.y2)
- {
- incy = -1;
- y = *py - 1;
- }
- else if (y < box.y1)
- return; /* should never get here! */
- }
- } while (!POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box));
- *px = x;
- *py = y;
-}
-
-static void
-CheckPhysLimits(
- DeviceIntPtr pDev,
- CursorPtr cursor,
- Bool generateEvents,
- Bool confineToScreen, /* unused if PanoramiX on */
- ScreenPtr pScreen) /* unused if PanoramiX on */
-{
- HotSpot new;
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- if (!cursor)
- return;
- new = pSprite->hotPhys;
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- /* I don't care what the DDX has to say about it */
- pSprite->physLimits = pSprite->hotLimits;
- else
-#endif
- {
- if (pScreen)
- new.pScreen = pScreen;
- else
- pScreen = new.pScreen;
- (*pScreen->CursorLimits) (pDev, pScreen, cursor, &pSprite->hotLimits,
- &pSprite->physLimits);
- pSprite->confined = confineToScreen;
- (* pScreen->ConstrainCursor)(pDev, pScreen, &pSprite->physLimits);
- }
-
- /* constrain the pointer to those limits */
- if (new.x < pSprite->physLimits.x1)
- new.x = pSprite->physLimits.x1;
- else
- if (new.x >= pSprite->physLimits.x2)
- new.x = pSprite->physLimits.x2 - 1;
- if (new.y < pSprite->physLimits.y1)
- new.y = pSprite->physLimits.y1;
- else
- if (new.y >= pSprite->physLimits.y2)
- new.y = pSprite->physLimits.y2 - 1;
- if (pSprite->hotShape)
- ConfineToShape(pDev, pSprite->hotShape, &new.x, &new.y);
- if ((pScreen != pSprite->hotPhys.pScreen) ||
- (new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y))
- {
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- XineramaSetCursorPosition (pDev, new.x, new.y, generateEvents);
- else
-#endif
- {
- if (pScreen != pSprite->hotPhys.pScreen)
- pSprite->hotPhys = new;
- (*pScreen->SetCursorPosition)
- (pDev, pScreen, new.x, new.y, generateEvents);
- }
- if (!generateEvents)
- SyntheticMotion(pDev, new.x, new.y);
- }
-
-#ifdef PANORAMIX
- /* Tell DDX what the limits are */
- if (!noPanoramiXExtension)
- XineramaConstrainCursor(pDev);
-#endif
-}
-
-static void
-CheckVirtualMotion(
- DeviceIntPtr pDev,
- QdEventPtr qe,
- WindowPtr pWin)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
- RegionPtr reg = NULL;
- DeviceEvent *ev = NULL;
-
- if (qe)
- {
- ev = &qe->event->device_event;
- switch(ev->type)
- {
- case ET_Motion:
- case ET_ButtonPress:
- case ET_ButtonRelease:
- case ET_KeyPress:
- case ET_KeyRelease:
- case ET_ProximityIn:
- case ET_ProximityOut:
- pSprite->hot.pScreen = qe->pScreen;
- pSprite->hot.x = ev->root_x;
- pSprite->hot.y = ev->root_y;
- pWin = pDev->deviceGrab.grab ? pDev->deviceGrab.grab->confineTo : NullWindow;
- break;
- default:
- break;
- }
- }
- if (pWin)
- {
- BoxRec lims;
-
-#ifdef PANORAMIX
- if (!noPanoramiXExtension) {
- int x, y, off_x, off_y, i;
-
- if(!XineramaSetWindowPntrs(pDev, pWin))
- return;
-
- i = PanoramiXNumScreens - 1;
-
- REGION_COPY(pSprite->screen, &pSprite->Reg2,
- &pSprite->windows[i]->borderSize);
- off_x = panoramiXdataPtr[i].x;
- off_y = panoramiXdataPtr[i].y;
-
- while(i--) {
- x = off_x - panoramiXdataPtr[i].x;
- y = off_y - panoramiXdataPtr[i].y;
-
- if(x || y)
- REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, x, y);
-
- REGION_UNION(pSprite->screen, &pSprite->Reg2, &pSprite->Reg2,
- &pSprite->windows[i]->borderSize);
-
- off_x = panoramiXdataPtr[i].x;
- off_y = panoramiXdataPtr[i].y;
- }
- } else
-#endif
- {
- if (pSprite->hot.pScreen != pWin->drawable.pScreen)
- {
- pSprite->hot.pScreen = pWin->drawable.pScreen;
- pSprite->hot.x = pSprite->hot.y = 0;
- }
- }
-
- lims = *REGION_EXTENTS(pWin->drawable.pScreen, &pWin->borderSize);
- if (pSprite->hot.x < lims.x1)
- pSprite->hot.x = lims.x1;
- else if (pSprite->hot.x >= lims.x2)
- pSprite->hot.x = lims.x2 - 1;
- if (pSprite->hot.y < lims.y1)
- pSprite->hot.y = lims.y1;
- else if (pSprite->hot.y >= lims.y2)
- pSprite->hot.y = lims.y2 - 1;
-
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- {
- if (REGION_NUM_RECTS(&pSprite->Reg2) > 1)
- reg = &pSprite->Reg2;
-
- } else
-#endif
- {
- if (wBoundingShape(pWin))
- reg = &pWin->borderSize;
- }
-
- if (reg)
- ConfineToShape(pDev, reg, &pSprite->hot.x, &pSprite->hot.y);
-
- if (qe && ev)
- {
- qe->pScreen = pSprite->hot.pScreen;
- ev->root_x = pSprite->hot.x;
- ev->root_y = pSprite->hot.y;
- }
- }
-#ifdef PANORAMIX
- if (noPanoramiXExtension) /* No typo. Only set the root win if disabled */
-#endif
- RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
-}
-
-static void
-ConfineCursorToWindow(DeviceIntPtr pDev, WindowPtr pWin, Bool generateEvents, Bool confineToScreen)
-{
- ScreenPtr pScreen = pWin->drawable.pScreen;
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- if (syncEvents.playingEvents)
- {
- CheckVirtualMotion(pDev, (QdEventPtr)NULL, pWin);
- SyntheticMotion(pDev, pSprite->hot.x, pSprite->hot.y);
- }
- else
- {
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- XineramaConfineCursorToWindow(pDev, pWin, generateEvents);
- return;
- }
-#endif
- pSprite->hotLimits = *REGION_EXTENTS( pScreen, &pWin->borderSize);
- pSprite->hotShape = wBoundingShape(pWin) ? &pWin->borderSize
- : NullRegion;
- CheckPhysLimits(pDev, pSprite->current, generateEvents,
- confineToScreen, pScreen);
- }
-}
-
-Bool
-PointerConfinedToScreen(DeviceIntPtr pDev)
-{
- return pDev->spriteInfo->sprite->confined;
-}
-
-/**
- * Update the sprite cursor to the given cursor.
- *
- * ChangeToCursor() will display the new cursor and free the old cursor (if
- * applicable). If the provided cursor is already the updated cursor, nothing
- * happens.
- */
-static void
-ChangeToCursor(DeviceIntPtr pDev, CursorPtr cursor)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
- ScreenPtr pScreen;
-
- if (cursor != pSprite->current)
- {
- if ((pSprite->current->bits->xhot != cursor->bits->xhot) ||
- (pSprite->current->bits->yhot != cursor->bits->yhot))
- CheckPhysLimits(pDev, cursor, FALSE, pSprite->confined,
- (ScreenPtr)NULL);
-#ifdef PANORAMIX
- /* XXX: is this really necessary?? (whot) */
- if (!noPanoramiXExtension)
- pScreen = pSprite->screen;
- else
-#endif
- pScreen = pSprite->hotPhys.pScreen;
-
- (*pScreen->DisplayCursor)(pDev, pScreen, cursor);
- FreeCursor(pSprite->current, (Cursor)0);
- pSprite->current = cursor;
- pSprite->current->refcnt++;
- }
-}
-
-/**
- * @returns true if b is a descendent of a
- */
-Bool
-IsParent(WindowPtr a, WindowPtr b)
-{
- for (b = b->parent; b; b = b->parent)
- if (b == a) return TRUE;
- return FALSE;
-}
-
-/**
- * Update the cursor displayed on the screen.
- *
- * Called whenever a cursor may have changed shape or position.
- */
-static void
-PostNewCursor(DeviceIntPtr pDev)
-{
- WindowPtr win;
- GrabPtr grab = pDev->deviceGrab.grab;
- SpritePtr pSprite = pDev->spriteInfo->sprite;
- CursorPtr pCursor;
-
- if (syncEvents.playingEvents)
- return;
- if (grab)
- {
- if (grab->cursor)
- {
- ChangeToCursor(pDev, grab->cursor);
- return;
- }
- if (IsParent(grab->window, pSprite->win))
- win = pSprite->win;
- else
- win = grab->window;
- }
- else
- win = pSprite->win;
- for (; win; win = win->parent)
- {
- if (win->optional)
- {
- pCursor = WindowGetDeviceCursor(win, pDev);
- if (!pCursor && win->optional->cursor != NullCursor)
- pCursor = win->optional->cursor;
- if (pCursor)
- {
- ChangeToCursor(pDev, pCursor);
- return;
- }
- }
- }
-}
-
-
-/**
- * @param dev device which you want to know its current root window
- * @return root window where dev's sprite is located
- */
-WindowPtr
-GetCurrentRootWindow(DeviceIntPtr dev)
-{
- return RootWindow(dev);
-}
-
-/**
- * @return window underneath the cursor sprite.
- */
-WindowPtr
-GetSpriteWindow(DeviceIntPtr pDev)
-{
- return pDev->spriteInfo->sprite->win;
-}
-
-/**
- * @return current sprite cursor.
- */
-CursorPtr
-GetSpriteCursor(DeviceIntPtr pDev)
-{
- return pDev->spriteInfo->sprite->current;
-}
-
-/**
- * Set x/y current sprite position in screen coordinates.
- */
-void
-GetSpritePosition(DeviceIntPtr pDev, int *px, int *py)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
- *px = pSprite->hotPhys.x;
- *py = pSprite->hotPhys.y;
-}
-
-#ifdef PANORAMIX
-int
-XineramaGetCursorScreen(DeviceIntPtr pDev)
-{
- if(!noPanoramiXExtension) {
- return pDev->spriteInfo->sprite->screen->myNum;
- } else {
- return 0;
- }
-}
-#endif /* PANORAMIX */
-
-#define TIMESLOP (5 * 60 * 1000) /* 5 minutes */
-
-static void
-MonthChangedOrBadTime(InternalEvent *ev)
-{
- /* If the ddx/OS is careless about not processing timestamped events from
- * different sources in sorted order, then it's possible for time to go
- * backwards when it should not. Here we ensure a decent time.
- */
- if ((currentTime.milliseconds - ev->any.time) > TIMESLOP)
- currentTime.months++;
- else
- ev->any.time = currentTime.milliseconds;
-}
-
-static void
-NoticeTime(InternalEvent *ev)
-{
- if (ev->any.time < currentTime.milliseconds)
- MonthChangedOrBadTime(ev);
- currentTime.milliseconds = ev->any.time;
- lastDeviceEventTime = currentTime;
-}
-
-void
-NoticeEventTime(InternalEvent *ev)
-{
- if (!syncEvents.playingEvents)
- NoticeTime(ev);
-}
-
-/**************************************************************************
- * The following procedures deal with synchronous events *
- **************************************************************************/
-
-/**
- * EnqueueEvent is a device's processInputProc if a device is frozen.
- * Instead of delivering the events to the client, the event is tacked onto a
- * linked list for later delivery.
- */
-void
-EnqueueEvent(InternalEvent *ev, DeviceIntPtr device)
-{
- QdEventPtr tail = *syncEvents.pendtail;
- QdEventPtr qe;
- SpritePtr pSprite = device->spriteInfo->sprite;
- int eventlen;
- DeviceEvent *event = &ev->device_event;
-
- NoticeTime((InternalEvent*)event);
-
- /* Fix for key repeating bug. */
- if (device->key != NULL && device->key->xkbInfo != NULL &&
- event->type == ET_KeyRelease)
- AccessXCancelRepeatKey(device->key->xkbInfo, event->detail.key);
-
- if (DeviceEventCallback)
- {
- DeviceEventInfoRec eventinfo;
-
- /* The RECORD spec says that the root window field of motion events
- * must be valid. At this point, it hasn't been filled in yet, so
- * we do it here. The long expression below is necessary to get
- * the current root window; the apparently reasonable alternative
- * GetCurrentRootWindow()->drawable.id doesn't give you the right
- * answer on the first motion event after a screen change because
- * the data that GetCurrentRootWindow relies on hasn't been
- * updated yet.
- */
- if (ev->any.type == ET_Motion)
- ev->device_event.root = WindowTable[pSprite->hotPhys.pScreen->myNum]->drawable.id;
-
- eventinfo.event = ev;
- eventinfo.device = device;
- CallCallbacks(&DeviceEventCallback, (pointer)&eventinfo);
- }
-
- if (event->type == ET_Motion)
- {
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- event->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
- panoramiXdataPtr[0].x;
- event->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
- panoramiXdataPtr[0].y;
- }
-#endif
- pSprite->hotPhys.x = event->root_x;
- pSprite->hotPhys.y = event->root_y;
- /* do motion compression, but not if from different devices */
- if (tail &&
- (tail->event->any.type == ET_Motion) &&
- (tail->device == device) &&
- (tail->pScreen == pSprite->hotPhys.pScreen))
- {
- DeviceEvent *tailev = &tail->event->device_event;
- tailev->root_x = pSprite->hotPhys.x;
- tailev->root_y = pSprite->hotPhys.y;
- tailev->time = event->time;
- tail->months = currentTime.months;
- return;
- }
- }
-
- eventlen = event->length;
-
- qe = xalloc(sizeof(QdEventRec) + eventlen);
- if (!qe)
- return;
- qe->next = (QdEventPtr)NULL;
- qe->device = device;
- qe->pScreen = pSprite->hotPhys.pScreen;
- qe->months = currentTime.months;
- qe->event = (InternalEvent *)(qe + 1);
- memcpy(qe->event, event, eventlen);
- if (tail)
- syncEvents.pendtail = &tail->next;
- *syncEvents.pendtail = qe;
-}
-
-/**
- * Run through the list of events queued up in syncEvents.
- * For each event do:
- * If the device for this event is not frozen anymore, take it and process it
- * as usually.
- * After that, check if there's any devices in the list that are not frozen.
- * If there is none, we're done. If there is at least one device that is not
- * frozen, then re-run from the beginning of the event queue.
- */
-static void
-PlayReleasedEvents(void)
-{
- QdEventPtr *prev, qe;
- DeviceIntPtr dev;
- DeviceIntPtr pDev;
-
- prev = &syncEvents.pending;
- while ( (qe = *prev) )
- {
- if (!qe->device->deviceGrab.sync.frozen)
- {
- *prev = qe->next;
- pDev = qe->device;
- if (*syncEvents.pendtail == *prev)
- syncEvents.pendtail = prev;
- if (qe->event->any.type == ET_Motion)
- CheckVirtualMotion(pDev, qe, NullWindow);
- syncEvents.time.months = qe->months;
- syncEvents.time.milliseconds = qe->event->any.time;
-#ifdef PANORAMIX
- /* Translate back to the sprite screen since processInputProc
- will translate from sprite screen to screen 0 upon reentry
- to the DIX layer */
- if(!noPanoramiXExtension) {
- DeviceEvent *ev = &qe->event->device_event;
- switch(ev->type)
- {
- case ET_Motion:
- case ET_ButtonPress:
- case ET_ButtonRelease:
- case ET_KeyPress:
- case ET_KeyRelease:
- case ET_ProximityIn:
- case ET_ProximityOut:
- ev->root_x += panoramiXdataPtr[0].x -
- panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].x;
- ev->root_y += panoramiXdataPtr[0].y -
- panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].y;
- break;
- default:
- break;
- }
-
- }
-#endif
- (*qe->device->public.processInputProc)(qe->event, qe->device);
- xfree(qe);
- for (dev = inputInfo.devices; dev && dev->deviceGrab.sync.frozen; dev = dev->next)
- ;
- if (!dev)
- break;
- /* Playing the event may have unfrozen another device. */
- /* So to play it safe, restart at the head of the queue */
- prev = &syncEvents.pending;
- }
- else
- prev = &qe->next;
- }
-}
-
-/**
- * Freeze or thaw the given devices. The device's processing proc is
- * switched to either the real processing proc (in case of thawing) or an
- * enqueuing processing proc (usually EnqueueEvent()).
- *
- * @param dev The device to freeze/thaw
- * @param frozen True to freeze or false to thaw.
- */
-static void
-FreezeThaw(DeviceIntPtr dev, Bool frozen)
-{
- dev->deviceGrab.sync.frozen = frozen;
- if (frozen)
- dev->public.processInputProc = dev->public.enqueueInputProc;
- else
- dev->public.processInputProc = dev->public.realInputProc;
-}
-
-/**
- * Unfreeze devices and replay all events to the respective clients.
- *
- * ComputeFreezes takes the first event in the device's frozen event queue. It
- * runs up the sprite tree (spriteTrace) and searches for the window to replay
- * the events from. If it is found, it checks for passive grabs one down from
- * the window or delivers the events.
- */
-static void
-ComputeFreezes(void)
-{
- DeviceIntPtr replayDev = syncEvents.replayDev;
- int i;
- WindowPtr w;
- GrabPtr grab;
- DeviceIntPtr dev;
-
- for (dev = inputInfo.devices; dev; dev = dev->next)
- FreezeThaw(dev, dev->deviceGrab.sync.other ||
- (dev->deviceGrab.sync.state >= FROZEN));
- if (syncEvents.playingEvents || (!replayDev && !syncEvents.pending))
- return;
- syncEvents.playingEvents = TRUE;
- if (replayDev)
- {
- DeviceEvent* event = replayDev->deviceGrab.sync.event;
-
- syncEvents.replayDev = (DeviceIntPtr)NULL;
-
- w = XYToWindow(replayDev, event->root_x, event->root_y);
- for (i = 0; i < replayDev->spriteInfo->sprite->spriteTraceGood; i++)
- {
- if (syncEvents.replayWin ==
- replayDev->spriteInfo->sprite->spriteTrace[i])
- {
- if (!CheckDeviceGrabs(replayDev, event, i+1)) {
- if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
- DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
- else
- DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
- NullWindow, replayDev);
- }
- goto playmore;
- }
- }
- /* must not still be in the same stack */
- if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
- DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
- else
- DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
- NullWindow, replayDev);
- }
-playmore:
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (!dev->deviceGrab.sync.frozen)
- {
- PlayReleasedEvents();
- break;
- }
- }
- syncEvents.playingEvents = FALSE;
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (DevHasCursor(dev))
- {
- /* the following may have been skipped during replay,
- so do it now */
- if ((grab = dev->deviceGrab.grab) && grab->confineTo)
- {
- if (grab->confineTo->drawable.pScreen !=
- dev->spriteInfo->sprite->hotPhys.pScreen)
- dev->spriteInfo->sprite->hotPhys.x =
- dev->spriteInfo->sprite->hotPhys.y = 0;
- ConfineCursorToWindow(dev, grab->confineTo, TRUE, TRUE);
- }
- else
- ConfineCursorToWindow(dev,
- WindowTable[dev->spriteInfo->sprite->hotPhys.pScreen->myNum],
- TRUE, FALSE);
- PostNewCursor(dev);
- }
- }
-}
-
-#ifdef RANDR
-void
-ScreenRestructured (ScreenPtr pScreen)
-{
- GrabPtr grab;
- DeviceIntPtr pDev;
-
- for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
- {
- if (!DevHasCursor(pDev))
- continue;
-
- /* GrabDevice doesn't have a confineTo field, so we don't need to
- * worry about it. */
- if ((grab = pDev->deviceGrab.grab) && grab->confineTo)
- {
- if (grab->confineTo->drawable.pScreen
- != pDev->spriteInfo->sprite->hotPhys.pScreen)
- pDev->spriteInfo->sprite->hotPhys.x = pDev->spriteInfo->sprite->hotPhys.y = 0;
- ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
- }
- else
- ConfineCursorToWindow(pDev,
- WindowTable[pDev->spriteInfo->sprite->hotPhys.pScreen->myNum],
- TRUE, FALSE);
- }
-}
-#endif
-
-static void
-CheckGrabForSyncs(DeviceIntPtr thisDev, Bool thisMode, Bool otherMode)
-{
- GrabPtr grab = thisDev->deviceGrab.grab;
- DeviceIntPtr dev;
-
- if (thisMode == GrabModeSync)
- thisDev->deviceGrab.sync.state = FROZEN_NO_EVENT;
- else
- { /* free both if same client owns both */
- thisDev->deviceGrab.sync.state = THAWED;
- if (thisDev->deviceGrab.sync.other &&
- (CLIENT_BITS(thisDev->deviceGrab.sync.other->resource) ==
- CLIENT_BITS(grab->resource)))
- thisDev->deviceGrab.sync.other = NullGrab;
- }
-
- if (IsMaster(thisDev))
- {
- dev = GetPairedDevice(thisDev);
- if (otherMode == GrabModeSync)
- dev->deviceGrab.sync.other = grab;
- else
- { /* free both if same client owns both */
- if (dev->deviceGrab.sync.other &&
- (CLIENT_BITS(dev->deviceGrab.sync.other->resource) ==
- CLIENT_BITS(grab->resource)))
- dev->deviceGrab.sync.other = NullGrab;
- }
- }
- ComputeFreezes();
-}
-
-/* Only ever used if a grab is called on an attached slave device. */
-static int GrabPrivateKeyIndex;
-static DevPrivateKey GrabPrivateKey = &GrabPrivateKeyIndex;
-
-/**
- * Save the device's master device in the devPrivates. This needs to be done
- * if a client directly grabs a slave device that is attached to a master. For
- * the duration of the grab, the device is detached, ungrabbing re-attaches it
- * though.
- *
- * We store the ID of the master device only in case the master disappears
- * while the device has a grab.
- */
-static void
-DetachFromMaster(DeviceIntPtr dev)
-{
- intptr_t id;
- if (!dev->u.master)
- return;
-
- id = dev->u.master->id;
-
- dixSetPrivate(&dev->devPrivates, GrabPrivateKey, (void *)id);
- AttachDevice(NULL, dev, NULL);
-}
-
-static void
-ReattachToOldMaster(DeviceIntPtr dev)
-{
- int id;
- void *p;
- DeviceIntPtr master = NULL;
-
- if (IsMaster(dev))
- return;
-
-
- p = dixLookupPrivate(&dev->devPrivates, GrabPrivateKey);
- id = (intptr_t) p; /* silence gcc warnings */
- dixLookupDevice(&master, id, serverClient, DixUseAccess);
-
- if (master)
- {
- AttachDevice(serverClient, dev, master);
- dixSetPrivate(&dev->devPrivates, GrabPrivateKey, NULL);
- }
-}
-
-/**
- * Activate a pointer grab on the given device. A pointer grab will cause all
- * core pointer events of this device to be delivered to the grabbing client only.
- * No other device will send core events to the grab client while the grab is
- * on, but core events will be sent to other clients.
- * Can cause the cursor to change if a grab cursor is set.
- *
- * Note that parameter autoGrab may be (True & ImplicitGrabMask) if the grab
- * is an implicit grab caused by a ButtonPress event.
- *
- * @param mouse The device to grab.
- * @param grab The grab structure, needs to be setup.
- * @param autoGrab True if the grab was caused by a button down event and not
- * explicitely by a client.
- */
-void
-ActivatePointerGrab(DeviceIntPtr mouse, GrabPtr grab,
- TimeStamp time, Bool autoGrab)
-{
- GrabInfoPtr grabinfo = &mouse->deviceGrab;
- WindowPtr oldWin = (grabinfo->grab) ?
- grabinfo->grab->window
- : mouse->spriteInfo->sprite->win;
- Bool isPassive = autoGrab & ~ImplicitGrabMask;
-
- /* slave devices need to float for the duration of the grab. */
- if (grab->grabtype == GRABTYPE_XI2 &&
- !(autoGrab & ImplicitGrabMask) && !IsMaster(mouse))
- DetachFromMaster(mouse);
-
- if (grab->confineTo)
- {
- if (grab->confineTo->drawable.pScreen
- != mouse->spriteInfo->sprite->hotPhys.pScreen)
- mouse->spriteInfo->sprite->hotPhys.x =
- mouse->spriteInfo->sprite->hotPhys.y = 0;
- ConfineCursorToWindow(mouse, grab->confineTo, FALSE, TRUE);
- }
- DoEnterLeaveEvents(mouse, mouse->id, oldWin, grab->window, NotifyGrab);
- mouse->valuator->motionHintWindow = NullWindow;
- if (syncEvents.playingEvents)
- grabinfo->grabTime = syncEvents.time;
- else
- grabinfo->grabTime = time;
- if (grab->cursor)
- grab->cursor->refcnt++;
- grabinfo->activeGrab = *grab;
- grabinfo->grab = &grabinfo->activeGrab;
- grabinfo->fromPassiveGrab = isPassive;
- grabinfo->implicitGrab = autoGrab & ImplicitGrabMask;
- PostNewCursor(mouse);
- CheckGrabForSyncs(mouse,(Bool)grab->pointerMode, (Bool)grab->keyboardMode);
-}
-
-/**
- * Delete grab on given device, update the sprite.
- *
- * Extension devices are set up for ActivateKeyboardGrab().
- */
-void
-DeactivatePointerGrab(DeviceIntPtr mouse)
-{
- GrabPtr grab = mouse->deviceGrab.grab;
- DeviceIntPtr dev;
- Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&
- mouse->deviceGrab.implicitGrab);
-
- mouse->valuator->motionHintWindow = NullWindow;
- mouse->deviceGrab.grab = NullGrab;
- mouse->deviceGrab.sync.state = NOT_GRABBED;
- mouse->deviceGrab.fromPassiveGrab = FALSE;
-
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev->deviceGrab.sync.other == grab)
- dev->deviceGrab.sync.other = NullGrab;
- }
- DoEnterLeaveEvents(mouse, mouse->id, grab->window,
- mouse->spriteInfo->sprite->win, NotifyUngrab);
- if (grab->confineTo)
- ConfineCursorToWindow(mouse, RootWindow(mouse), FALSE, FALSE);
- PostNewCursor(mouse);
- if (grab->cursor)
- FreeCursor(grab->cursor, (Cursor)0);
-
- if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
- ReattachToOldMaster(mouse);
-
- ComputeFreezes();
-}
-
-/**
- * Activate a keyboard grab on the given device.
- *
- * Extension devices have ActivateKeyboardGrab() set as their grabbing proc.
- */
-void
-ActivateKeyboardGrab(DeviceIntPtr keybd, GrabPtr grab, TimeStamp time, Bool passive)
-{
- GrabInfoPtr grabinfo = &keybd->deviceGrab;
- WindowPtr oldWin;
-
- /* slave devices need to float for the duration of the grab. */
- if (grab->grabtype == GRABTYPE_XI2 &&
- !(passive & ImplicitGrabMask) &&
- !IsMaster(keybd))
- DetachFromMaster(keybd);
-
- if (grabinfo->grab)
- oldWin = grabinfo->grab->window;
- else if (keybd->focus)
- oldWin = keybd->focus->win;
- else
- oldWin = keybd->spriteInfo->sprite->win;
- if (oldWin == FollowKeyboardWin)
- oldWin = keybd->focus->win;
- if (keybd->valuator)
- keybd->valuator->motionHintWindow = NullWindow;
- DoFocusEvents(keybd, oldWin, grab->window, NotifyGrab);
- if (syncEvents.playingEvents)
- grabinfo->grabTime = syncEvents.time;
- else
- grabinfo->grabTime = time;
- grabinfo->activeGrab = *grab;
- grabinfo->grab = &grabinfo->activeGrab;
- grabinfo->fromPassiveGrab = passive;
- grabinfo->implicitGrab = passive & ImplicitGrabMask;
- CheckGrabForSyncs(keybd, (Bool)grab->keyboardMode, (Bool)grab->pointerMode);
-}
-
-/**
- * Delete keyboard grab for the given device.
- */
-void
-DeactivateKeyboardGrab(DeviceIntPtr keybd)
-{
- GrabPtr grab = keybd->deviceGrab.grab;
- DeviceIntPtr dev;
- WindowPtr focusWin = keybd->focus ? keybd->focus->win
- : keybd->spriteInfo->sprite->win;
- Bool wasImplicit = (keybd->deviceGrab.fromPassiveGrab &&
- keybd->deviceGrab.implicitGrab);
-
- if (focusWin == FollowKeyboardWin)
- focusWin = inputInfo.keyboard->focus->win;
- if (keybd->valuator)
- keybd->valuator->motionHintWindow = NullWindow;
- keybd->deviceGrab.grab = NullGrab;
- keybd->deviceGrab.sync.state = NOT_GRABBED;
- keybd->deviceGrab.fromPassiveGrab = FALSE;
-
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev->deviceGrab.sync.other == grab)
- dev->deviceGrab.sync.other = NullGrab;
- }
- DoFocusEvents(keybd, grab->window, focusWin, NotifyUngrab);
-
- if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
- ReattachToOldMaster(keybd);
-
- ComputeFreezes();
-}
-
-void
-AllowSome(ClientPtr client,
- TimeStamp time,
- DeviceIntPtr thisDev,
- int newState)
-{
- Bool thisGrabbed, otherGrabbed, othersFrozen, thisSynced;
- TimeStamp grabTime;
- DeviceIntPtr dev;
- GrabInfoPtr devgrabinfo,
- grabinfo = &thisDev->deviceGrab;
-
- thisGrabbed = grabinfo->grab && SameClient(grabinfo->grab, client);
- thisSynced = FALSE;
- otherGrabbed = FALSE;
- othersFrozen = FALSE;
- grabTime = grabinfo->grabTime;
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- devgrabinfo = &dev->deviceGrab;
-
- if (dev == thisDev)
- continue;
- if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client))
- {
- if (!(thisGrabbed || otherGrabbed) ||
- (CompareTimeStamps(devgrabinfo->grabTime, grabTime) == LATER))
- grabTime = devgrabinfo->grabTime;
- otherGrabbed = TRUE;
- if (grabinfo->sync.other == devgrabinfo->grab)
- thisSynced = TRUE;
- if (devgrabinfo->sync.state >= FROZEN)
- othersFrozen = TRUE;
- }
- }
- if (!((thisGrabbed && grabinfo->sync.state >= FROZEN) || thisSynced))
- return;
- if ((CompareTimeStamps(time, currentTime) == LATER) ||
- (CompareTimeStamps(time, grabTime) == EARLIER))
- return;
- switch (newState)
- {
- case THAWED: /* Async */
- if (thisGrabbed)
- grabinfo->sync.state = THAWED;
- if (thisSynced)
- grabinfo->sync.other = NullGrab;
- ComputeFreezes();
- break;
- case FREEZE_NEXT_EVENT: /* Sync */
- if (thisGrabbed)
- {
- grabinfo->sync.state = FREEZE_NEXT_EVENT;
- if (thisSynced)
- grabinfo->sync.other = NullGrab;
- ComputeFreezes();
- }
- break;
- case THAWED_BOTH: /* AsyncBoth */
- if (othersFrozen)
- {
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- devgrabinfo = &dev->deviceGrab;
- if (devgrabinfo->grab
- && SameClient(devgrabinfo->grab, client))
- devgrabinfo->sync.state = THAWED;
- if (devgrabinfo->sync.other &&
- SameClient(devgrabinfo->sync.other, client))
- devgrabinfo->sync.other = NullGrab;
- }
- ComputeFreezes();
- }
- break;
- case FREEZE_BOTH_NEXT_EVENT: /* SyncBoth */
- if (othersFrozen)
- {
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- devgrabinfo = &dev->deviceGrab;
- if (devgrabinfo->grab
- && SameClient(devgrabinfo->grab, client))
- devgrabinfo->sync.state = FREEZE_BOTH_NEXT_EVENT;
- if (devgrabinfo->sync.other
- && SameClient(devgrabinfo->sync.other, client))
- devgrabinfo->sync.other = NullGrab;
- }
- ComputeFreezes();
- }
- break;
- case NOT_GRABBED: /* Replay */
- if (thisGrabbed && grabinfo->sync.state == FROZEN_WITH_EVENT)
- {
- if (thisSynced)
- grabinfo->sync.other = NullGrab;
- syncEvents.replayDev = thisDev;
- syncEvents.replayWin = grabinfo->grab->window;
- (*grabinfo->DeactivateGrab)(thisDev);
- syncEvents.replayDev = (DeviceIntPtr)NULL;
- }
- break;
- case THAW_OTHERS: /* AsyncOthers */
- if (othersFrozen)
- {
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev == thisDev)
- continue;
- devgrabinfo = &dev->deviceGrab;
- if (devgrabinfo->grab
- && SameClient(devgrabinfo->grab, client))
- devgrabinfo->sync.state = THAWED;
- if (devgrabinfo->sync.other
- && SameClient(devgrabinfo->sync.other, client))
- devgrabinfo->sync.other = NullGrab;
- }
- ComputeFreezes();
- }
- break;
- }
-}
-
-/**
- * Server-side protocol handling for AllowEvents request.
- *
- * Release some events from a frozen device.
- */
-int
-ProcAllowEvents(ClientPtr client)
-{
- TimeStamp time;
- DeviceIntPtr mouse = NULL;
- DeviceIntPtr keybd = NULL;
- REQUEST(xAllowEventsReq);
-
- REQUEST_SIZE_MATCH(xAllowEventsReq);
- time = ClientTimeToServerTime(stuff->time);
-
- mouse = PickPointer(client);
- keybd = PickKeyboard(client);
-
- switch (stuff->mode)
- {
- case ReplayPointer:
- AllowSome(client, time, mouse, NOT_GRABBED);
- break;
- case SyncPointer:
- AllowSome(client, time, mouse, FREEZE_NEXT_EVENT);
- break;
- case AsyncPointer:
- AllowSome(client, time, mouse, THAWED);
- break;
- case ReplayKeyboard:
- AllowSome(client, time, keybd, NOT_GRABBED);
- break;
- case SyncKeyboard:
- AllowSome(client, time, keybd, FREEZE_NEXT_EVENT);
- break;
- case AsyncKeyboard:
- AllowSome(client, time, keybd, THAWED);
- break;
- case SyncBoth:
- AllowSome(client, time, keybd, FREEZE_BOTH_NEXT_EVENT);
- break;
- case AsyncBoth:
- AllowSome(client, time, keybd, THAWED_BOTH);
- break;
- default:
- client->errorValue = stuff->mode;
- return BadValue;
- }
- return Success;
-}
-
-/**
- * Deactivate grabs from any device that has been grabbed by the client.
- */
-void
-ReleaseActiveGrabs(ClientPtr client)
-{
- DeviceIntPtr dev;
- Bool done;
-
- /* XXX CloseDownClient should remove passive grabs before
- * releasing active grabs.
- */
- do {
- done = TRUE;
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
- {
- (*dev->deviceGrab.DeactivateGrab)(dev);
- done = FALSE;
- }
- }
- } while (!done);
-}
-
-/**************************************************************************
- * The following procedures deal with delivering events *
- **************************************************************************/
-
-/**
- * Deliver the given events to the given client.
- *
- * More than one event may be delivered at a time. This is the case with
- * DeviceMotionNotifies which may be followed by DeviceValuator events.
- *
- * TryClientEvents() is the last station before actually writing the events to
- * the socket. Anything that is not filtered here, will get delivered to the
- * client.
- * An event is only delivered if
- * - mask and filter match up.
- * - no other client has a grab on the device that caused the event.
- *
- *
- * @param client The target client to deliver to.
- * @param dev The device the event came from. May be NULL.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param mask Event mask as set by the window.
- * @param filter Mask based on event type.
- * @param grab Possible grab on the device that caused the event.
- *
- * @return 1 if event was delivered, 0 if not or -1 if grab was not set by the
- * client.
- */
-int
-TryClientEvents (ClientPtr client, DeviceIntPtr dev, xEvent *pEvents,
- int count, Mask mask, Mask filter, GrabPtr grab)
-{
- int i;
- int type;
-
-#ifdef DEBUG_EVENTS
- ErrorF("[dix] Event([%d, %d], mask=0x%lx), client=%d%s",
- pEvents->u.u.type, pEvents->u.u.detail, mask,
- client ? client->index : -1,
- (client && client->clientGone) ? " (gone)" : "");
-#endif
-
- if (!client || client == serverClient || client->clientGone) {
-#ifdef DEBUG_EVENTS
- ErrorF(" not delivered to fake/dead client\n");
-#endif
- return 0;
- }
-
- if (filter != CantBeFiltered && !(mask & filter))
- {
- #ifdef DEBUG_EVENTS
- ErrorF(" filtered\n");
- #endif
- return 0;
- }
-
- if (grab && !SameClient(grab, client))
- {
-#ifdef DEBUG_EVENTS
- ErrorF(" not delivered due to grab\n");
-#endif
- return -1; /* don't send, but notify caller */
- }
-
- type = pEvents->u.u.type;
- if (type == MotionNotify)
- {
- if (mask & PointerMotionHintMask)
- {
- if (WID(dev->valuator->motionHintWindow) ==
- pEvents->u.keyButtonPointer.event)
- {
-#ifdef DEBUG_EVENTS
- ErrorF("[dix] \n");
- ErrorF("[dix] motionHintWindow == keyButtonPointer.event\n");
-#endif
- return 1; /* don't send, but pretend we did */
- }
- pEvents->u.u.detail = NotifyHint;
- }
- else
- {
- pEvents->u.u.detail = NotifyNormal;
- }
- }
- else if (type == DeviceMotionNotify)
- {
- if (MaybeSendDeviceMotionNotifyHint((deviceKeyButtonPointer*)pEvents,
- mask) != 0)
- return 1;
- } else if (type == KeyPress)
- {
- if (EventIsKeyRepeat(pEvents))
- {
- if (!_XkbWantsDetectableAutoRepeat(client))
- {
- xEvent release = *pEvents;
- release.u.u.type = KeyRelease;
- release.u.u.sequenceNumber = client->sequence;
- WriteEventsToClient(client, 1, &release);
-#ifdef DEBUG_EVENTS
- ErrorF(" (plus fake core release for repeat)");
-#endif
- } else
- {
-#ifdef DEBUG_EVENTS
- ErrorF(" (detectable autorepeat for core)");
-#endif
- }
- }
-
- } else if (type == DeviceKeyPress)
- {
- if (EventIsKeyRepeat(pEvents))
- {
- if (!_XkbWantsDetectableAutoRepeat(client))
- {
- deviceKeyButtonPointer release = *(deviceKeyButtonPointer *)pEvents;
- release.type = DeviceKeyRelease;
- release.sequenceNumber = client->sequence;
-#ifdef DEBUG_EVENTS
- ErrorF(" (plus fake xi1 release for repeat)");
-#endif
- WriteEventsToClient(client, 1, (xEvent *) &release);
- }
- else {
-#ifdef DEBUG_EVENTS
- ErrorF(" (detectable autorepeat for core)");
-#endif
- }
- }
- }
-
- type &= 0177;
- if (type != KeymapNotify)
- {
- /* all extension events must have a sequence number */
- for (i = 0; i < count; i++)
- pEvents[i].u.u.sequenceNumber = client->sequence;
- }
-
- if (BitIsOn(criticalEvents, type))
- {
- if (client->smart_priority < SMART_MAX_PRIORITY)
- client->smart_priority++;
- SetCriticalOutputPending();
- }
-
- WriteEventsToClient(client, count, pEvents);
-#ifdef DEBUG_EVENTS
- ErrorF("[dix] delivered\n");
-#endif
- return 1;
-}
-
-/**
- * Deliver events to a window. At this point, we do not yet know if the event
- * actually needs to be delivered. May activate a grab if the event is a
- * button press.
- *
- * Core events are always delivered to the window owner. If the filter is
- * something other than CantBeFiltered, the event is also delivered to other
- * clients with the matching mask on the window.
- *
- * More than one event may be delivered at a time. This is the case with
- * DeviceMotionNotifies which may be followed by DeviceValuator events.
- *
- * @param pWin The window that would get the event.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param filter Mask based on event type.
- * @param grab Possible grab on the device that caused the event.
- *
- * @return Number of events delivered to various clients.
- */
-int
-DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
- *pEvents, int count, Mask filter, GrabPtr grab)
-{
- int deliveries = 0, nondeliveries = 0;
- int attempt;
- InputClients *other;
- ClientPtr client = NullClient;
- Mask deliveryMask = 0; /* If a grab occurs due to a button press, then
- this mask is the mask of the grab. */
- int type = pEvents->u.u.type;
-
-
- /* Deliver to window owner */
- if ((filter == CantBeFiltered) || CORE_EVENT(pEvents))
- {
- /* if nobody ever wants to see this event, skip some work */
- if (filter != CantBeFiltered &&
- !((wOtherEventMasks(pWin)|pWin->eventMask) & filter))
- return 0;
-
- if (IsInterferingGrab(wClient(pWin), pDev, pEvents))
- return 0;
-
- if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
- /* do nothing */;
- else if ( (attempt = TryClientEvents(wClient(pWin), pDev, pEvents,
- count, pWin->eventMask,
- filter, grab)) )
- {
- if (attempt > 0)
- {
- deliveries++;
- client = wClient(pWin);
- deliveryMask = pWin->eventMask;
- } else
- nondeliveries--;
- }
- }
-
- /* CantBeFiltered means only window owner gets the event */
- if (filter != CantBeFiltered)
- {
- if (CORE_EVENT(pEvents))
- other = (InputClients *)wOtherClients(pWin);
- else if (XI2_EVENT(pEvents))
- {
- OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
- /* Has any client selected for the event? */
- if (!GetWindowXI2Mask(pDev, pWin, pEvents))
- return 0;
- other = inputMasks->inputClients;
- } else {
- OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
- /* Has any client selected for the event? */
- if (!inputMasks ||
- !(inputMasks->inputEvents[pDev->id] & filter))
- return 0;
-
- other = inputMasks->inputClients;
- }
-
- for (; other; other = other->next)
- {
- Mask mask;
- if (IsInterferingGrab(rClient(other), pDev, pEvents))
- continue;
-
- mask = GetEventMask(pDev, pEvents, other);
-
- if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin,
- pEvents, count))
- /* do nothing */;
- else if ( (attempt = TryClientEvents(rClient(other), pDev,
- pEvents, count,
- mask, filter, grab)) )
- {
- if (attempt > 0)
- {
- deliveries++;
- client = rClient(other);
- deliveryMask = mask;
- } else
- nondeliveries--;
- }
- }
- }
- /*
- * Note that since core events are delivered first, an implicit grab may
- * be activated on a core grab, stopping the XI events.
- */
- if ((type == DeviceButtonPress || type == ButtonPress ||
- ((XI2_EVENT(pEvents) && ((xGenericEvent*)pEvents)->evtype == XI_ButtonPress)))
- && deliveries
- && (!grab))
- {
- GrabRec tempGrab;
- OtherInputMasks *inputMasks;
-
- memset(&tempGrab, 0, sizeof(GrabRec));
- tempGrab.next = NULL;
- tempGrab.device = pDev;
- tempGrab.resource = client->clientAsMask;
- tempGrab.window = pWin;
- tempGrab.ownerEvents = (deliveryMask & OwnerGrabButtonMask) ? TRUE : FALSE;
- tempGrab.eventMask = deliveryMask;
- tempGrab.keyboardMode = GrabModeAsync;
- tempGrab.pointerMode = GrabModeAsync;
- tempGrab.confineTo = NullWindow;
- tempGrab.cursor = NullCursor;
- tempGrab.type = type;
- if (type == ButtonPress)
- tempGrab.grabtype = GRABTYPE_CORE;
- else if (type == DeviceButtonPress)
- tempGrab.grabtype = GRABTYPE_XI;
- else
- {
- tempGrab.type = ((xGenericEvent*)pEvents)->evtype;
- tempGrab.grabtype = GRABTYPE_XI2;
- }
-
- /* get the XI and XI2 device mask */
- inputMasks = wOtherInputMasks(pWin);
- tempGrab.deviceMask = (inputMasks) ? inputMasks->inputEvents[pDev->id]: 0;
-
- if (inputMasks)
- memcpy(tempGrab.xi2mask, inputMasks->xi2mask,
- sizeof(tempGrab.xi2mask));
-
- (*pDev->deviceGrab.ActivateGrab)(pDev, &tempGrab,
- currentTime, TRUE | ImplicitGrabMask);
- }
- else if ((type == MotionNotify) && deliveries)
- pDev->valuator->motionHintWindow = pWin;
- else
- {
- if ((type == DeviceMotionNotify || type == DeviceButtonPress) &&
- deliveries)
- CheckDeviceGrabAndHintWindow (pWin, type,
- (deviceKeyButtonPointer*) pEvents,
- grab, client, deliveryMask);
- }
- if (deliveries)
- return deliveries;
- return nondeliveries;
-}
-
-/* If the event goes to dontClient, don't send it and return 0. if
- send works, return 1 or if send didn't work, return 2.
- Only works for core events.
-*/
-
-#ifdef PANORAMIX
-static int
-XineramaTryClientEventsResult(
- ClientPtr client,
- GrabPtr grab,
- Mask mask,
- Mask filter
-){
- if ((client) && (client != serverClient) && (!client->clientGone) &&
- ((filter == CantBeFiltered) || (mask & filter)))
- {
- if (grab && !SameClient(grab, client)) return -1;
- else return 1;
- }
- return 0;
-}
-#endif
-
-/**
- * Try to deliver events to the interested parties.
- *
- * @param pWin The window that would get the event.
- * @param pEvents The events to be delivered.
- * @param count Number of elements in pEvents.
- * @param filter Mask based on event type.
- * @param dontClient Don't deliver to the dontClient.
- */
-int
-MaybeDeliverEventsToClient(WindowPtr pWin, xEvent *pEvents,
- int count, Mask filter, ClientPtr dontClient)
-{
- OtherClients *other;
-
-
- if (pWin->eventMask & filter)
- {
- if (wClient(pWin) == dontClient)
- return 0;
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
- return XineramaTryClientEventsResult(
- wClient(pWin), NullGrab, pWin->eventMask, filter);
-#endif
- if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
- return 1; /* don't send, but pretend we did */
- return TryClientEvents(wClient(pWin), NULL, pEvents, count,
- pWin->eventMask, filter, NullGrab);
- }
- for (other = wOtherClients(pWin); other; other = other->next)
- {
- if (other->mask & filter)
- {
- if (SameClient(other, dontClient))
- return 0;
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
- return XineramaTryClientEventsResult(
- rClient(other), NullGrab, other->mask, filter);
-#endif
- if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin, pEvents,
- count))
- return 1; /* don't send, but pretend we did */
- return TryClientEvents(rClient(other), NULL, pEvents, count,
- other->mask, filter, NullGrab);
- }
- }
- return 2;
-}
-
-static Window FindChildForEvent(DeviceIntPtr dev, WindowPtr event)
-{
- SpritePtr pSprite = dev->spriteInfo->sprite;
- WindowPtr w = pSprite->spriteTrace[pSprite->spriteTraceGood-1];
- Window child = None;
-
- /* If the search ends up past the root should the child field be
- set to none or should the value in the argument be passed
- through. It probably doesn't matter since everyone calls
- this function with child == None anyway. */
- while (w)
- {
- /* If the source window is same as event window, child should be
- none. Don't bother going all all the way back to the root. */
-
- if (w == event)
- {
- child = None;
- break;
- }
-
- if (w->parent == event)
- {
- child = w->drawable.id;
- break;
- }
- w = w->parent;
- }
- return child;
-}
-
-/**
- * Adjust event fields to comply with the window properties.
- *
- * @param xE Event to be modified in place
- * @param pWin The window to get the information from.
- * @param child Child window setting for event (if applicable)
- * @param calcChild If True, calculate the child window.
- */
-void
-FixUpEventFromWindow(
- DeviceIntPtr pDev,
- xEvent *xE,
- WindowPtr pWin,
- Window child,
- Bool calcChild)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- if (calcChild)
- child = FindChildForEvent(pDev, pWin);
-
- if (XI2_EVENT(xE))
- {
- xXIDeviceEvent* event = (xXIDeviceEvent*)xE;
-
- if (event->evtype == XI_RawKeyPress ||
- event->evtype == XI_RawKeyRelease ||
- event->evtype == XI_RawButtonPress ||
- event->evtype == XI_RawButtonRelease ||
- event->evtype == XI_RawMotion ||
- event->evtype == XI_DeviceChanged ||
- event->evtype == XI_HierarchyChanged ||
- event->evtype == XI_PropertyEvent)
- return;
-
- event->root = RootWindow(pDev)->drawable.id;
- event->event = pWin->drawable.id;
- if (pSprite->hot.pScreen == pWin->drawable.pScreen)
- {
- event->event_x = event->root_x - FP1616(pWin->drawable.x, 0);
- event->event_y = event->root_y - FP1616(pWin->drawable.y, 0);
- event->child = child;
- } else
- {
- event->event_x = 0;
- event->event_y = 0;
- event->child = None;
- }
-
- if (event->evtype == XI_Enter || event->evtype == XI_Leave ||
- event->evtype == XI_FocusIn || event->evtype == XI_FocusOut)
- ((xXIEnterEvent*)event)->same_screen =
- (pSprite->hot.pScreen == pWin->drawable.pScreen);
-
- } else
- {
- XE_KBPTR.root = RootWindow(pDev)->drawable.id;
- XE_KBPTR.event = pWin->drawable.id;
- if (pSprite->hot.pScreen == pWin->drawable.pScreen)
- {
- XE_KBPTR.sameScreen = xTrue;
- XE_KBPTR.child = child;
- XE_KBPTR.eventX =
- XE_KBPTR.rootX - pWin->drawable.x;
- XE_KBPTR.eventY =
- XE_KBPTR.rootY - pWin->drawable.y;
- }
- else
- {
- XE_KBPTR.sameScreen = xFalse;
- XE_KBPTR.child = None;
- XE_KBPTR.eventX = 0;
- XE_KBPTR.eventY = 0;
- }
- }
-}
-
-/**
- * Return masks for EventIsDeliverable.
- * @defgroup EventIsDeliverable return flags
- * @{
- */
-#define XI_MASK (1 << 0) /**< XI mask set on window */
-#define CORE_MASK (1 << 1) /**< Core mask set on window */
-#define DONT_PROPAGATE_MASK (1 << 2) /**< DontPropagate mask set on window */
-#define XI2_MASK (1 << 3) /**< XI2 mask set on window */
-/* @} */
-
-/**
- * Check if a given event is deliverable at all on a given window.
- *
- * This function only checks if any client wants it, not for a specific
- * client.
- *
- * @param[in] dev The device this event is being sent for.
- * @param[in] event The event that is to be sent.
- * @param[in] win The current event window.
- *
- * @return Bitmask of ::XI2_MASK, ::XI_MASK, ::CORE_MASK, and
- * ::DONT_PROPAGATE_MASK.
- */
-static int
-EventIsDeliverable(DeviceIntPtr dev, InternalEvent* event, WindowPtr win)
-{
- int rc = 0;
- int filter = 0;
- int type;
- OtherInputMasks *inputMasks = wOtherInputMasks(win);
- xEvent ev;
-
- /* XXX: this makes me gag */
- type = GetXI2Type(event);
- ev.u.u.type = GenericEvent; /* GetEventFilter only cares about type and evtype*/
- ((xGenericEvent*)&ev)->extension = IReqCode;
- ((xGenericEvent*)&ev)->evtype = type;
- filter = GetEventFilter(dev, &ev);
- if (type && inputMasks &&
- ((inputMasks->xi2mask[XIAllDevices][type/8] & filter) ||
- ((inputMasks->xi2mask[XIAllMasterDevices][type/8] & filter) && IsMaster(dev)) ||
- (inputMasks->xi2mask[dev->id][type/8] & filter)))
- rc |= XI2_MASK;
-
- type = GetXIType(event);
- ev.u.u.type = type;
- filter = GetEventFilter(dev, &ev);
-
- /* Check for XI mask */
- if (type && inputMasks &&
- (inputMasks->deliverableEvents[dev->id] & filter) &&
- (inputMasks->inputEvents[dev->id] & filter))
- rc |= XI_MASK;
-
- /* Check for XI DontPropagate mask */
- if (type && inputMasks &&
- (inputMasks->dontPropagateMask[dev->id] & filter))
- rc |= DONT_PROPAGATE_MASK;
-
- /* Check for core mask */
- type = GetCoreType(event);
- if (type && (win->deliverableEvents & filter) &&
- ((wOtherEventMasks(win) | win->eventMask) & filter))
- rc |= CORE_MASK;
-
- /* Check for core DontPropagate mask */
- if (type && (filter & wDontPropagateMask(win)))
- rc |= DONT_PROPAGATE_MASK;
-
- return rc;
-}
-
-/**
- * Deliver events caused by input devices.
- *
- * For events from a non-grabbed, non-focus device, DeliverDeviceEvents is
- * called directly from the processInputProc.
- * For grabbed devices, DeliverGrabbedEvent is called first, and _may_ call
- * DeliverDeviceEvents.
- * For focused events, DeliverFocusedEvent is called first, and _may_ call
- * DeliverDeviceEvents.
- *
- * @param pWin Window to deliver event to.
- * @param event The events to deliver, not yet in wire format.
- * @param grab Possible grab on a device.
- * @param stopAt Don't recurse up to the root window.
- * @param dev The device that is responsible for the event.
- *
- * @see DeliverGrabbedEvent
- * @see DeliverFocusedEvent
- */
-int
-DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab,
- WindowPtr stopAt, DeviceIntPtr dev)
-{
- Window child = None;
- Mask filter;
- int deliveries = 0;
- xEvent core;
- xEvent *xE = NULL;
- int rc, mask, count = 0;
-
- CHECKEVENT(event);
-
- while (pWin)
- {
- if ((mask = EventIsDeliverable(dev, event, pWin)))
- {
- /* XI2 events first */
- if (mask & XI2_MASK)
- {
- xEvent *xi2 = NULL;
- rc = EventToXI2(event, &xi2);
- if (rc == Success)
- {
- /* XXX: XACE */
- filter = GetEventFilter(dev, xi2);
- FixUpEventFromWindow(dev, xi2, pWin, child, FALSE);
- deliveries = DeliverEventsToWindow(dev, pWin, xi2, 1,
- filter, grab);
- xfree(xi2);
- if (deliveries > 0)
- goto unwind;
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI2 conversion failed in DDE (%d).\n",
- dev->name, rc);
- }
-
- /* XI events */
- if (mask & XI_MASK)
- {
- rc = EventToXI(event, &xE, &count);
- if (rc == Success) {
- if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, xE, count) == Success) {
- filter = GetEventFilter(dev, xE);
- FixUpEventFromWindow(dev, xE, pWin, child, FALSE);
- deliveries = DeliverEventsToWindow(dev, pWin, xE, count,
- filter, grab);
- if (deliveries > 0)
- goto unwind;
- }
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI conversion failed in DDE (%d, %d). Skipping delivery.\n",
- dev->name, event->any.type, rc);
- }
-
- /* Core event */
- if ((mask & CORE_MASK) && IsMaster(dev) && dev->coreEvents)
- {
- rc = EventToCore(event, &core);
- if (rc == Success) {
- if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, &core, 1) == Success) {
- filter = GetEventFilter(dev, &core);
- FixUpEventFromWindow(dev, &core, pWin, child, FALSE);
- deliveries = DeliverEventsToWindow(dev, pWin, &core, 1,
- filter, grab);
- if (deliveries > 0)
- goto unwind;
- }
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: Core conversion failed in DDE (%d, %d).\n",
- dev->name, event->any.type, rc);
- }
-
- if ((deliveries < 0) || (pWin == stopAt) ||
- (mask & DONT_PROPAGATE_MASK))
- {
- deliveries = 0;
- goto unwind;
- }
- }
-
- child = pWin->drawable.id;
- pWin = pWin->parent;
- }
-
-unwind:
- xfree(xE);
- return deliveries;
-}
-
-#undef XI_MASK
-#undef CORE_MASK
-#undef DONT_PROPAGATE_MASK
-
-/**
- * Deliver event to a window and it's immediate parent. Used for most window
- * events (CreateNotify, ConfigureNotify, etc.). Not useful for events that
- * propagate up the tree or extension events
- *
- * In case of a ReparentNotify event, the event will be delivered to the
- * otherParent as well.
- *
- * @param pWin Window to deliver events to.
- * @param xE Events to deliver.
- * @param count number of events in xE.
- * @param otherParent Used for ReparentNotify events.
- */
-int
-DeliverEvents(WindowPtr pWin, xEvent *xE, int count,
- WindowPtr otherParent)
-{
- Mask filter;
- int deliveries;
- DeviceIntRec dummy;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
- return count;
-#endif
-
- if (!count)
- return 0;
-
- dummy.id = XIAllDevices;
- filter = GetEventFilter(&dummy, xE);
- if ((filter & SubstructureNotifyMask) && (xE->u.u.type != CreateNotify))
- xE->u.destroyNotify.event = pWin->drawable.id;
- if (filter != StructureAndSubMask)
- return DeliverEventsToWindow(&dummy, pWin, xE, count, filter, NullGrab);
- deliveries = DeliverEventsToWindow(&dummy, pWin, xE, count,
- StructureNotifyMask, NullGrab);
- if (pWin->parent)
- {
- xE->u.destroyNotify.event = pWin->parent->drawable.id;
- deliveries += DeliverEventsToWindow(&dummy, pWin->parent, xE, count,
- SubstructureNotifyMask, NullGrab);
- if (xE->u.u.type == ReparentNotify)
- {
- xE->u.destroyNotify.event = otherParent->drawable.id;
- deliveries += DeliverEventsToWindow(&dummy,
- otherParent, xE, count, SubstructureNotifyMask,
- NullGrab);
- }
- }
- return deliveries;
-}
-
-
-static Bool
-PointInBorderSize(WindowPtr pWin, int x, int y)
-{
- BoxRec box;
- SpritePtr pSprite = inputInfo.pointer->spriteInfo->sprite;
-
- if(POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderSize, x, y, &box))
- return TRUE;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension &&
- XineramaSetWindowPntrs(inputInfo.pointer, pWin)) {
- int i;
-
- for(i = 1; i < PanoramiXNumScreens; i++) {
- if(POINT_IN_REGION(pSprite->screen,
- &pSprite->windows[i]->borderSize,
- x + panoramiXdataPtr[0].x - panoramiXdataPtr[i].x,
- y + panoramiXdataPtr[0].y - panoramiXdataPtr[i].y,
- &box))
- return TRUE;
- }
- }
-#endif
- return FALSE;
-}
-
-/**
- * Traversed from the root window to the window at the position x/y. While
- * traversing, it sets up the traversal history in the spriteTrace array.
- * After completing, the spriteTrace history is set in the following way:
- * spriteTrace[0] ... root window
- * spriteTrace[1] ... top level window that encloses x/y
- * ...
- * spriteTrace[spriteTraceGood - 1] ... window at x/y
- *
- * @returns the window at the given coordinates.
- */
-static WindowPtr
-XYToWindow(DeviceIntPtr pDev, int x, int y)
-{
- WindowPtr pWin;
- BoxRec box;
- SpritePtr pSprite;
-
- pSprite = pDev->spriteInfo->sprite;
- pSprite->spriteTraceGood = 1; /* root window still there */
- pWin = RootWindow(pDev)->firstChild;
- while (pWin)
- {
- if ((pWin->mapped) &&
- (x >= pWin->drawable.x - wBorderWidth (pWin)) &&
- (x < pWin->drawable.x + (int)pWin->drawable.width +
- wBorderWidth(pWin)) &&
- (y >= pWin->drawable.y - wBorderWidth (pWin)) &&
- (y < pWin->drawable.y + (int)pWin->drawable.height +
- wBorderWidth (pWin))
- /* When a window is shaped, a further check
- * is made to see if the point is inside
- * borderSize
- */
- && (!wBoundingShape(pWin) || PointInBorderSize(pWin, x, y))
- && (!wInputShape(pWin) ||
- POINT_IN_REGION(pWin->drawable.pScreen,
- wInputShape(pWin),
- x - pWin->drawable.x,
- y - pWin->drawable.y, &box))
-#ifdef ROOTLESS
- /* In rootless mode windows may be offscreen, even when
- * they're in X's stack. (E.g. if the native window system
- * implements some form of virtual desktop system).
- */
- && !pWin->rootlessUnhittable
-#endif
- )
- {
- if (pSprite->spriteTraceGood >= pSprite->spriteTraceSize)
- {
- pSprite->spriteTraceSize += 10;
- pSprite->spriteTrace = xrealloc(pSprite->spriteTrace,
- pSprite->spriteTraceSize*sizeof(WindowPtr));
- }
- pSprite->spriteTrace[pSprite->spriteTraceGood++] = pWin;
- pWin = pWin->firstChild;
- }
- else
- pWin = pWin->nextSib;
- }
- return pSprite->spriteTrace[pSprite->spriteTraceGood-1];
-}
-
-/**
- * Ungrab a currently FocusIn grabbed device and grab the device on the
- * given window. If the win given is the NoneWin, the device is ungrabbed if
- * applicable and FALSE is returned.
- *
- * @returns TRUE if the device has been grabbed, or FALSE otherwise.
- */
-BOOL
-ActivateFocusInGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
-{
- BOOL rc = FALSE;
- DeviceEvent event;
-
- if (dev->deviceGrab.grab &&
- dev->deviceGrab.fromPassiveGrab &&
- dev->deviceGrab.grab->type == XI_Enter)
- {
- if (dev->deviceGrab.grab->window == win ||
- IsParent(dev->deviceGrab.grab->window, win))
- return FALSE;
- DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
- (*dev->deviceGrab.DeactivateGrab)(dev);
- }
-
- if (win == NoneWin || win == PointerRootWin)
- return FALSE;
-
- memset(&event, 0, sizeof(DeviceEvent));
- event.header = ET_Internal;
- event.type = ET_FocusIn;
- event.length = sizeof(DeviceEvent);
- event.time = GetTimeInMillis();
- event.deviceid = dev->id;
- event.sourceid = dev->id;
- event.detail.button = 0;
- rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
- if (rc)
- DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
- return rc;
-}
-
-/**
- * Ungrab a currently Enter grabbed device and grab the device for the given
- * window.
- *
- * @returns TRUE if the device has been grabbed, or FALSE otherwise.
- */
-static BOOL
-ActivateEnterGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
-{
- BOOL rc = FALSE;
- DeviceEvent event;
-
- if (dev->deviceGrab.grab &&
- dev->deviceGrab.fromPassiveGrab &&
- dev->deviceGrab.grab->type == XI_Enter)
- {
- if (dev->deviceGrab.grab->window == win ||
- IsParent(dev->deviceGrab.grab->window, win))
- return FALSE;
- DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
- (*dev->deviceGrab.DeactivateGrab)(dev);
- }
-
- memset(&event, 0, sizeof(DeviceEvent));
- event.header = ET_Internal;
- event.type = ET_Enter;
- event.length = sizeof(DeviceEvent);
- event.time = GetTimeInMillis();
- event.deviceid = dev->id;
- event.sourceid = dev->id;
- event.detail.button = 0;
- rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
- if (rc)
- DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveGrab);
-
- return rc;
-}
-
-/**
- * Update the sprite coordinates based on the event. Update the cursor
- * position, then update the event with the new coordinates that may have been
- * changed. If the window underneath the sprite has changed, change to new
- * cursor and send enter/leave events.
- *
- * CheckMotion() will not do anything and return FALSE if the event is not a
- * pointer event.
- *
- * @return TRUE if the sprite has moved or FALSE otherwise.
- */
-Bool
-CheckMotion(DeviceEvent *ev, DeviceIntPtr pDev)
-{
- WindowPtr prevSpriteWin, newSpriteWin;
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- CHECKEVENT(ev);
-
- prevSpriteWin = pSprite->win;
-
- if (ev && !syncEvents.playingEvents)
- {
- /* GetPointerEvents() guarantees that pointer events have the correct
- rootX/Y set already. */
- switch (ev->type)
- {
- case ET_ButtonPress:
- case ET_ButtonRelease:
- case ET_Motion:
- break;
- default:
- /* all other events return FALSE */
- return FALSE;
- }
-
-
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- {
- /* Motion events entering DIX get translated to Screen 0
- coordinates. Replayed events have already been
- translated since they've entered DIX before */
- ev->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
- panoramiXdataPtr[0].x;
- ev->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
- panoramiXdataPtr[0].y;
- } else
-#endif
- {
- if (pSprite->hot.pScreen != pSprite->hotPhys.pScreen)
- {
- pSprite->hot.pScreen = pSprite->hotPhys.pScreen;
- RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
- }
- }
-
- pSprite->hot.x = ev->root_x;
- pSprite->hot.y = ev->root_y;
- if (pSprite->hot.x < pSprite->physLimits.x1)
- pSprite->hot.x = pSprite->physLimits.x1;
- else if (pSprite->hot.x >= pSprite->physLimits.x2)
- pSprite->hot.x = pSprite->physLimits.x2 - 1;
- if (pSprite->hot.y < pSprite->physLimits.y1)
- pSprite->hot.y = pSprite->physLimits.y1;
- else if (pSprite->hot.y >= pSprite->physLimits.y2)
- pSprite->hot.y = pSprite->physLimits.y2 - 1;
- if (pSprite->hotShape)
- ConfineToShape(pDev, pSprite->hotShape, &pSprite->hot.x, &pSprite->hot.y);
- pSprite->hotPhys = pSprite->hot;
-
- if ((pSprite->hotPhys.x != ev->root_x) ||
- (pSprite->hotPhys.y != ev->root_y))
- {
-#ifdef PANORAMIX
- if (!noPanoramiXExtension)
- {
- XineramaSetCursorPosition(
- pDev, pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
- } else
-#endif
- {
- (*pSprite->hotPhys.pScreen->SetCursorPosition)(
- pDev, pSprite->hotPhys.pScreen,
- pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
- }
- }
-
- ev->root_x = pSprite->hot.x;
- ev->root_y = pSprite->hot.y;
- }
-
- newSpriteWin = XYToWindow(pDev, pSprite->hot.x, pSprite->hot.y);
-
- if (newSpriteWin != prevSpriteWin)
- {
- int sourceid;
- if (!ev) {
- UpdateCurrentTimeIf();
- sourceid = pDev->id; /* when from WindowsRestructured */
- } else
- sourceid = ev->sourceid;
-
- if (prevSpriteWin != NullWindow) {
- if (!ActivateEnterGrab(pDev, prevSpriteWin, newSpriteWin))
- DoEnterLeaveEvents(pDev, sourceid, prevSpriteWin,
- newSpriteWin, NotifyNormal);
- }
- /* set pSprite->win after ActivateEnterGrab, otherwise
- sprite window == grab_window and no enter/leave events are
- sent. */
- pSprite->win = newSpriteWin;
- PostNewCursor(pDev);
- return FALSE;
- }
- return TRUE;
-}
-
-/**
- * Windows have restructured, we need to update the sprite position and the
- * sprite's cursor.
- */
-void
-WindowsRestructured(void)
-{
- DeviceIntPtr pDev = inputInfo.devices;
- while(pDev)
- {
- if (IsMaster(pDev) || !pDev->u.master)
- CheckMotion(NULL, pDev);
- pDev = pDev->next;
- }
-}
-
-#ifdef PANORAMIX
-/* This was added to support reconfiguration under Xdmx. The problem is
- * that if the 0th screen (i.e., WindowTable[0]) is moved to an origin
- * other than 0,0, the information in the private sprite structure must
- * be updated accordingly, or XYToWindow (and other routines) will not
- * compute correctly. */
-void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)
-{
- GrabPtr grab;
- DeviceIntPtr pDev;
- SpritePtr pSprite;
-
- if (noPanoramiXExtension) return;
-
- pDev = inputInfo.devices;
- while(pDev)
- {
- if (DevHasCursor(pDev))
- {
- pSprite = pDev->spriteInfo->sprite;
- pSprite->hot.x -= xoff;
- pSprite->hot.y -= yoff;
-
- pSprite->hotPhys.x -= xoff;
- pSprite->hotPhys.y -= yoff;
-
- pSprite->hotLimits.x1 -= xoff;
- pSprite->hotLimits.y1 -= yoff;
- pSprite->hotLimits.x2 -= xoff;
- pSprite->hotLimits.y2 -= yoff;
-
- if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg1))
- REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, xoff, yoff);
- if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg2))
- REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, xoff, yoff);
-
- /* FIXME: if we call ConfineCursorToWindow, must we do anything else? */
- if ((grab = pDev->deviceGrab.grab) && grab->confineTo) {
- if (grab->confineTo->drawable.pScreen
- != pSprite->hotPhys.pScreen)
- pSprite->hotPhys.x = pSprite->hotPhys.y = 0;
- ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
- } else
- ConfineCursorToWindow(
- pDev,
- WindowTable[pSprite->hotPhys.pScreen->myNum],
- TRUE, FALSE);
-
- }
- pDev = pDev->next;
- }
-}
-#endif
-
-/**
- * Initialize a sprite for the given device and set it to some sane values. If
- * the device already has a sprite alloc'd, don't realloc but just reset to
- * default values.
- * If a window is supplied, the sprite will be initialized with the window's
- * cursor and positioned in the center of the window's screen. The root window
- * is a good choice to pass in here.
- *
- * It's a good idea to call it only for pointer devices, unless you have a
- * really talented keyboard.
- *
- * @param pDev The device to initialize.
- * @param pWin The window where to generate the sprite in.
- *
- */
-void
-InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin)
-{
- SpritePtr pSprite;
- ScreenPtr pScreen;
-
- if (!pDev->spriteInfo->sprite)
- {
- DeviceIntPtr it;
-
- pDev->spriteInfo->sprite = (SpritePtr)xcalloc(1, sizeof(SpriteRec));
- if (!pDev->spriteInfo->sprite)
- FatalError("InitializeSprite: failed to allocate sprite struct");
-
- /* We may have paired another device with this device before our
- * device had a actual sprite. We need to check for this and reset the
- * sprite field for all paired devices.
- *
- * The VCK is always paired with the VCP before the VCP has a sprite.
- */
- for (it = inputInfo.devices; it; it = it->next)
- {
- if (it->spriteInfo->paired == pDev)
- it->spriteInfo->sprite = pDev->spriteInfo->sprite;
- }
- if (inputInfo.keyboard->spriteInfo->paired == pDev)
- inputInfo.keyboard->spriteInfo->sprite = pDev->spriteInfo->sprite;
- }
-
- pSprite = pDev->spriteInfo->sprite;
- pDev->spriteInfo->spriteOwner = TRUE;
-
- pScreen = (pWin) ? pWin->drawable.pScreen : (ScreenPtr)NULL;
- pSprite->hot.pScreen = pScreen;
- pSprite->hotPhys.pScreen = pScreen;
- if (pScreen)
- {
- pSprite->hotPhys.x = pScreen->width / 2;
- pSprite->hotPhys.y = pScreen->height / 2;
- pSprite->hotLimits.x2 = pScreen->width;
- pSprite->hotLimits.y2 = pScreen->height;
- }
-
- pSprite->hot = pSprite->hotPhys;
- pSprite->win = pWin;
-
- if (pWin)
- {
- pSprite->current = wCursor(pWin);
- pSprite->current->refcnt++;
- pSprite->spriteTrace = (WindowPtr *)xcalloc(1, 32*sizeof(WindowPtr));
- if (!pSprite->spriteTrace)
- FatalError("Failed to allocate spriteTrace");
- pSprite->spriteTraceSize = 32;
-
- RootWindow(pDev) = pWin;
- pSprite->spriteTraceGood = 1;
-
- pSprite->pEnqueueScreen = pScreen;
- pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
-
- } else {
- pSprite->current = NullCursor;
- pSprite->spriteTrace = NULL;
- pSprite->spriteTraceSize = 0;
- pSprite->spriteTraceGood = 0;
- pSprite->pEnqueueScreen = screenInfo.screens[0];
- pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
- }
-
- if (pScreen)
- {
- (*pScreen->RealizeCursor) ( pDev, pScreen, pSprite->current);
- (*pScreen->CursorLimits) ( pDev, pScreen, pSprite->current,
- &pSprite->hotLimits, &pSprite->physLimits);
- pSprite->confined = FALSE;
-
- (*pScreen->ConstrainCursor) (pDev, pScreen,
- &pSprite->physLimits);
- (*pScreen->SetCursorPosition) (pDev, pScreen, pSprite->hot.x,
- pSprite->hot.y,
- FALSE);
- (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
- }
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
- pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
- pSprite->hotLimits.x2 = PanoramiXPixWidth - panoramiXdataPtr[0].x;
- pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
- pSprite->physLimits = pSprite->hotLimits;
- pSprite->confineWin = NullWindow;
- pSprite->hotShape = NullRegion;
- pSprite->screen = pScreen;
- /* gotta UNINIT these someplace */
- REGION_NULL(pScreen, &pSprite->Reg1);
- REGION_NULL(pScreen, &pSprite->Reg2);
- }
-#endif
-}
-
-/**
- * Update the mouse sprite info when the server switches from a pScreen to another.
- * Otherwise, the pScreen of the mouse sprite is never updated when we switch
- * from a pScreen to another. Never updating the pScreen of the mouse sprite
- * implies that windows that are in pScreen whose pScreen->myNum >0 will never
- * get pointer events. This is because in CheckMotion(), sprite.hotPhys.pScreen
- * always points to the first pScreen it has been set by
- * DefineInitialRootWindow().
- *
- * Calling this function is useful for use cases where the server
- * has more than one pScreen.
- * This function is similar to DefineInitialRootWindow() but it does not
- * reset the mouse pointer position.
- * @param win must be the new pScreen we are switching to.
- */
-void
-UpdateSpriteForScreen(DeviceIntPtr pDev, ScreenPtr pScreen)
-{
- SpritePtr pSprite = NULL;
- WindowPtr win = NULL;
- if (!pScreen)
- return ;
-
- if (!pDev->spriteInfo->sprite)
- return;
-
- pSprite = pDev->spriteInfo->sprite;
-
- win = WindowTable[pScreen->myNum];
-
- pSprite->hotPhys.pScreen = pScreen;
- pSprite->hot = pSprite->hotPhys;
- pSprite->hotLimits.x2 = pScreen->width;
- pSprite->hotLimits.y2 = pScreen->height;
- pSprite->win = win;
- pSprite->current = wCursor (win);
- pSprite->current->refcnt++;
- pSprite->spriteTraceGood = 1;
- pSprite->spriteTrace[0] = win;
- (*pScreen->CursorLimits) (pDev,
- pScreen,
- pSprite->current,
- &pSprite->hotLimits,
- &pSprite->physLimits);
- pSprite->confined = FALSE;
- (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits);
- (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
- pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
- pSprite->hotLimits.x2 = PanoramiXPixWidth - panoramiXdataPtr[0].x;
- pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
- pSprite->physLimits = pSprite->hotLimits;
- pSprite->screen = pScreen;
- }
-#endif
-}
-
-/*
- * This does not take any shortcuts, and even ignores its argument, since
- * it does not happen very often, and one has to walk up the tree since
- * this might be a newly instantiated cursor for an intermediate window
- * between the one the pointer is in and the one that the last cursor was
- * instantiated from.
- */
-void
-WindowHasNewCursor(WindowPtr pWin)
-{
- DeviceIntPtr pDev;
-
- for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
- if (DevHasCursor(pDev))
- PostNewCursor(pDev);
-}
-
-void
-NewCurrentScreen(DeviceIntPtr pDev, ScreenPtr newScreen, int x, int y)
-{
- SpritePtr pSprite = pDev->spriteInfo->sprite;
-
- pSprite->hotPhys.x = x;
- pSprite->hotPhys.y = y;
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- pSprite->hotPhys.x += panoramiXdataPtr[newScreen->myNum].x -
- panoramiXdataPtr[0].x;
- pSprite->hotPhys.y += panoramiXdataPtr[newScreen->myNum].y -
- panoramiXdataPtr[0].y;
- if (newScreen != pSprite->screen) {
- pSprite->screen = newScreen;
- /* Make sure we tell the DDX to update its copy of the screen */
- if(pSprite->confineWin)
- XineramaConfineCursorToWindow(pDev,
- pSprite->confineWin, TRUE);
- else
- XineramaConfineCursorToWindow(pDev, WindowTable[0], TRUE);
- /* if the pointer wasn't confined, the DDX won't get
- told of the pointer warp so we reposition it here */
- if(!syncEvents.playingEvents)
- (*pSprite->screen->SetCursorPosition)(
- pDev,
- pSprite->screen,
- pSprite->hotPhys.x + panoramiXdataPtr[0].x -
- panoramiXdataPtr[pSprite->screen->myNum].x,
- pSprite->hotPhys.y + panoramiXdataPtr[0].y -
- panoramiXdataPtr[pSprite->screen->myNum].y, FALSE);
- }
- } else
-#endif
- if (newScreen != pSprite->hotPhys.pScreen)
- ConfineCursorToWindow(pDev, WindowTable[newScreen->myNum],
- TRUE, FALSE);
-}
-
-#ifdef PANORAMIX
-
-static Bool
-XineramaPointInWindowIsVisible(
- WindowPtr pWin,
- int x,
- int y
-)
-{
- ScreenPtr pScreen = pWin->drawable.pScreen;
- BoxRec box;
- int i, xoff, yoff;
-
- if (!pWin->realized) return FALSE;
-
- if (POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box))
- return TRUE;
-
- if(!XineramaSetWindowPntrs(inputInfo.pointer, pWin)) return FALSE;
-
- xoff = x + panoramiXdataPtr[0].x;
- yoff = y + panoramiXdataPtr[0].y;
-
- for(i = 1; i < PanoramiXNumScreens; i++) {
- pWin = inputInfo.pointer->spriteInfo->sprite->windows[i];
- pScreen = pWin->drawable.pScreen;
- x = xoff - panoramiXdataPtr[i].x;
- y = yoff - panoramiXdataPtr[i].y;
-
- if(POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box)
- && (!wInputShape(pWin) ||
- POINT_IN_REGION(pWin->drawable.pScreen,
- wInputShape(pWin),
- x - pWin->drawable.x,
- y - pWin->drawable.y, &box)))
- return TRUE;
-
- }
-
- return FALSE;
-}
-
-static int
-XineramaWarpPointer(ClientPtr client)
-{
- WindowPtr dest = NULL;
- int x, y, rc;
- SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite;
-
- REQUEST(xWarpPointerReq);
-
-
- if (stuff->dstWid != None) {
- rc = dixLookupWindow(&dest, stuff->dstWid, client, DixReadAccess);
- if (rc != Success)
- return rc;
- }
- x = pSprite->hotPhys.x;
- y = pSprite->hotPhys.y;
-
- if (stuff->srcWid != None)
- {
- int winX, winY;
- XID winID = stuff->srcWid;
- WindowPtr source;
-
- rc = dixLookupWindow(&source, winID, client, DixReadAccess);
- if (rc != Success)
- return rc;
-
- winX = source->drawable.x;
- winY = source->drawable.y;
- if(source == WindowTable[0]) {
- winX -= panoramiXdataPtr[0].x;
- winY -= panoramiXdataPtr[0].y;
- }
- if (x < winX + stuff->srcX ||
- y < winY + stuff->srcY ||
- (stuff->srcWidth != 0 &&
- winX + stuff->srcX + (int)stuff->srcWidth < x) ||
- (stuff->srcHeight != 0 &&
- winY + stuff->srcY + (int)stuff->srcHeight < y) ||
- !XineramaPointInWindowIsVisible(source, x, y))
- return Success;
- }
- if (dest) {
- x = dest->drawable.x;
- y = dest->drawable.y;
- if(dest == WindowTable[0]) {
- x -= panoramiXdataPtr[0].x;
- y -= panoramiXdataPtr[0].y;
- }
- }
-
- x += stuff->dstX;
- y += stuff->dstY;
-
- if (x < pSprite->physLimits.x1)
- x = pSprite->physLimits.x1;
- else if (x >= pSprite->physLimits.x2)
- x = pSprite->physLimits.x2 - 1;
- if (y < pSprite->physLimits.y1)
- y = pSprite->physLimits.y1;
- else if (y >= pSprite->physLimits.y2)
- y = pSprite->physLimits.y2 - 1;
- if (pSprite->hotShape)
- ConfineToShape(PickPointer(client), pSprite->hotShape, &x, &y);
-
- XineramaSetCursorPosition(PickPointer(client), x, y, TRUE);
-
- return Success;
-}
-
-#endif
-
-
-/**
- * Server-side protocol handling for WarpPointer request.
- * Warps the cursor position to the coordinates given in the request.
- */
-int
-ProcWarpPointer(ClientPtr client)
-{
- WindowPtr dest = NULL;
- int x, y, rc;
- ScreenPtr newScreen;
- DeviceIntPtr dev, tmp;
- SpritePtr pSprite;
-
- REQUEST(xWarpPointerReq);
- REQUEST_SIZE_MATCH(xWarpPointerReq);
-
- dev = PickPointer(client);
-
- for (tmp = inputInfo.devices; tmp; tmp = tmp->next) {
- if ((tmp == dev) || (!IsMaster(tmp) && tmp->u.master == dev)) {
- rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixWriteAccess);
- if (rc != Success)
- return rc;
- }
- }
-
- if (dev->u.lastSlave)
- dev = dev->u.lastSlave;
- pSprite = dev->spriteInfo->sprite;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension)
- return XineramaWarpPointer(client);
-#endif
-
- if (stuff->dstWid != None) {
- rc = dixLookupWindow(&dest, stuff->dstWid, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- }
- x = pSprite->hotPhys.x;
- y = pSprite->hotPhys.y;
-
- if (stuff->srcWid != None)
- {
- int winX, winY;
- XID winID = stuff->srcWid;
- WindowPtr source;
-
- rc = dixLookupWindow(&source, winID, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- winX = source->drawable.x;
- winY = source->drawable.y;
- if (source->drawable.pScreen != pSprite->hotPhys.pScreen ||
- x < winX + stuff->srcX ||
- y < winY + stuff->srcY ||
- (stuff->srcWidth != 0 &&
- winX + stuff->srcX + (int)stuff->srcWidth < x) ||
- (stuff->srcHeight != 0 &&
- winY + stuff->srcY + (int)stuff->srcHeight < y) ||
- !PointInWindowIsVisible(source, x, y))
- return Success;
- }
- if (dest)
- {
- x = dest->drawable.x;
- y = dest->drawable.y;
- newScreen = dest->drawable.pScreen;
- } else
- newScreen = pSprite->hotPhys.pScreen;
-
- x += stuff->dstX;
- y += stuff->dstY;
-
- if (x < 0)
- x = 0;
- else if (x >= newScreen->width)
- x = newScreen->width - 1;
- if (y < 0)
- y = 0;
- else if (y >= newScreen->height)
- y = newScreen->height - 1;
-
- if (newScreen == pSprite->hotPhys.pScreen)
- {
- if (x < pSprite->physLimits.x1)
- x = pSprite->physLimits.x1;
- else if (x >= pSprite->physLimits.x2)
- x = pSprite->physLimits.x2 - 1;
- if (y < pSprite->physLimits.y1)
- y = pSprite->physLimits.y1;
- else if (y >= pSprite->physLimits.y2)
- y = pSprite->physLimits.y2 - 1;
- if (pSprite->hotShape)
- ConfineToShape(dev, pSprite->hotShape, &x, &y);
- (*newScreen->SetCursorPosition)(dev, newScreen, x, y, TRUE);
- }
- else if (!PointerConfinedToScreen(dev))
- {
- NewCurrentScreen(dev, newScreen, x, y);
- }
- return Success;
-}
-
-static Bool
-BorderSizeNotEmpty(DeviceIntPtr pDev, WindowPtr pWin)
-{
- if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->hotPhys.pScreen, &pWin->borderSize))
- return TRUE;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && XineramaSetWindowPntrs(pDev, pWin)) {
- int i;
-
- for(i = 1; i < PanoramiXNumScreens; i++) {
- if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->screen,
- &pDev->spriteInfo->sprite->windows[i]->borderSize))
- return TRUE;
- }
- }
-#endif
- return FALSE;
-}
-
-/**
- * "CheckPassiveGrabsOnWindow" checks to see if the event passed in causes a
- * passive grab set on the window to be activated.
- * If a passive grab is activated, the event will be delivered to the client.
- *
- * @param pWin The window that may be subject to a passive grab.
- * @param device Device that caused the event.
- * @param event The current device event.
- * @param checkCore Check for core grabs too.
- */
-
-static Bool
-CheckPassiveGrabsOnWindow(
- WindowPtr pWin,
- DeviceIntPtr device,
- DeviceEvent *event,
- BOOL checkCore)
-{
- GrabPtr grab = wPassiveGrabs(pWin);
- GrabRec tempGrab;
- GrabInfoPtr grabinfo;
-#define CORE_MATCH 0x1
-#define XI_MATCH 0x2
-#define XI2_MATCH 0x4
- int match = 0;
-
- if (device->deviceGrab.grab)
- return FALSE;
-
- if (!grab)
- return FALSE;
- /* Fill out the grab details, but leave the type for later before
- * comparing */
- tempGrab.window = pWin;
- tempGrab.device = device;
- tempGrab.detail.exact = event->detail.key;
- tempGrab.detail.pMask = NULL;
- tempGrab.modifiersDetail.pMask = NULL;
- tempGrab.next = NULL;
- for (; grab; grab = grab->next)
- {
- DeviceIntPtr gdev;
- XkbSrvInfoPtr xkbi = NULL;
- Mask mask = 0;
-
- gdev= grab->modifierDevice;
- if (grab->grabtype == GRABTYPE_CORE)
- {
- if (IsPointerDevice(device))
- gdev = GetPairedDevice(device);
- else
- gdev = device;
- } else if (grab->grabtype == GRABTYPE_XI2)
- {
- /* if the device is an attached slave device, gdev must be the
- * attached master keyboard. Since the slave may have been
- * reattached after the grab, the modifier device may not be the
- * same. */
- if (!IsMaster(grab->device) && device->u.master)
- gdev = GetMaster(device, MASTER_KEYBOARD);
- }
-
-
- if (gdev && gdev->key)
- xkbi= gdev->key->xkbInfo;
- tempGrab.modifierDevice = grab->modifierDevice;
- tempGrab.modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0;
-
- /* Check for XI2 and XI grabs first */
- tempGrab.type = GetXI2Type((InternalEvent*)event);
- tempGrab.grabtype = GRABTYPE_XI2;
- if (GrabMatchesSecond(&tempGrab, grab, FALSE))
- match = XI2_MATCH;
-
- tempGrab.detail.exact = event->detail.key;
- if (!match)
- {
- tempGrab.type = GetXIType((InternalEvent*)event);
- tempGrab.grabtype = GRABTYPE_XI;
- if (GrabMatchesSecond(&tempGrab, grab, FALSE))
- match = XI_MATCH;
- }
-
- /* Check for a core grab (ignore the device when comparing) */
- if (!match && checkCore)
- {
- tempGrab.grabtype = GRABTYPE_CORE;
- if ((tempGrab.type = GetCoreType((InternalEvent*)event)) &&
- (GrabMatchesSecond(&tempGrab, grab, TRUE)))
- match = CORE_MATCH;
- }
-
- if (match && (!grab->confineTo ||
- (grab->confineTo->realized &&
- BorderSizeNotEmpty(device, grab->confineTo))))
- {
- int rc, count = 0;
- xEvent *xE = NULL;
- xEvent core;
-
- event->corestate &= 0x1f00;
- event->corestate |= tempGrab.modifiersDetail.exact & (~0x1f00);
- grabinfo = &device->deviceGrab;
- /* In some cases a passive core grab may exist, but the client
- * already has a core grab on some other device. In this case we
- * must not get the grab, otherwise we may never ungrab the
- * device.
- */
-
- if (grab->grabtype == GRABTYPE_CORE)
- {
- DeviceIntPtr other;
- BOOL interfering = FALSE;
-
- /* A passive grab may have been created for a different device
- than it is assigned to at this point in time.
- Update the grab's device and modifier device to reflect the
- current state.
- Since XGrabDeviceButton requires to specify the
- modifierDevice explicitly, we don't override this choice.
- */
- if (tempGrab.type < GenericEvent)
- {
- grab->device = device;
- grab->modifierDevice = GetPairedDevice(device);
- }
-
- for (other = inputInfo.devices; other; other = other->next)
- {
- GrabPtr othergrab = other->deviceGrab.grab;
- if (othergrab && othergrab->grabtype == GRABTYPE_CORE &&
- SameClient(grab, rClient(othergrab)) &&
- ((IsPointerDevice(grab->device) &&
- IsPointerDevice(othergrab->device)) ||
- (IsKeyboardDevice(grab->device) &&
- IsKeyboardDevice(othergrab->device))))
- {
- interfering = TRUE;
- break;
- }
- }
- if (interfering)
- continue;
- }
-
-
- if (match & CORE_MATCH)
- {
- rc = EventToCore((InternalEvent*)event, &core);
- if (rc != Success)
- {
- if (rc != BadMatch)
- ErrorF("[dix] %s: core conversion failed in CPGFW "
- "(%d, %d).\n", device->name, event->type, rc);
- continue;
- }
- xE = &core;
- count = 1;
- mask = grab->eventMask;
- } else if (match & XI2_MATCH)
- {
- rc = EventToXI2((InternalEvent*)event, &xE);
- if (rc != Success)
- {
- if (rc != BadMatch)
- ErrorF("[dix] %s: XI2 conversion failed in CPGFW "
- "(%d, %d).\n", device->name, event->type, rc);
- continue;
- }
- count = 1;
-
- /* FIXME: EventToXI2 returns NULL for enter events, so
- * dereferencing the event is bad. Internal event types are
- * aligned with core events, so the else clause is valid.
- * long-term we should use internal events for enter/focus
- * as well */
- if (xE)
- mask = grab->xi2mask[device->id][((xGenericEvent*)xE)->evtype/8];
- else if (event->type == XI_Enter || event->type == XI_FocusIn)
- mask = grab->xi2mask[device->id][event->type/8];
- } else
- {
- rc = EventToXI((InternalEvent*)event, &xE, &count);
- if (rc != Success)
- {
- if (rc != BadMatch)
- ErrorF("[dix] %s: XI conversion failed in CPGFW "
- "(%d, %d).\n", device->name, event->type, rc);
- continue;
- }
- mask = grab->eventMask;
- }
-
- (*grabinfo->ActivateGrab)(device, grab, currentTime, TRUE);
-
- if (xE)
- {
- FixUpEventFromWindow(device, xE, grab->window, None, TRUE);
-
- TryClientEvents(rClient(grab), device, xE, count, mask,
- GetEventFilter(device, xE), grab);
- }
-
- if (grabinfo->sync.state == FROZEN_NO_EVENT)
- {
- if (!grabinfo->sync.event)
- grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
- *grabinfo->sync.event = *event;
- grabinfo->sync.state = FROZEN_WITH_EVENT;
- }
-
- if (match & (XI_MATCH | XI2_MATCH))
- xfree(xE); /* on core match xE == &core */
- return TRUE;
- }
- }
- return FALSE;
-#undef CORE_MATCH
-#undef XI_MATCH
-#undef XI2_MATCH
-}
-
-/**
- * CheckDeviceGrabs handles both keyboard and pointer events that may cause
- * a passive grab to be activated.
- *
- * If the event is a keyboard event, the ancestors of the focus window are
- * traced down and tried to see if they have any passive grabs to be
- * activated. If the focus window itself is reached and it's descendants
- * contain the pointer, the ancestors of the window that the pointer is in
- * are then traced down starting at the focus window, otherwise no grabs are
- * activated.
- * If the event is a pointer event, the ancestors of the window that the
- * pointer is in are traced down starting at the root until CheckPassiveGrabs
- * causes a passive grab to activate or all the windows are
- * tried. PRH
- *
- * If a grab is activated, the event has been sent to the client already!
- *
- * The event we pass in must always be an XI event. From this, we then emulate
- * the core event and then check for grabs.
- *
- * @param device The device that caused the event.
- * @param xE The event to handle (Device{Button|Key}Press).
- * @param count Number of events in list.
- * @return TRUE if a grab has been activated or false otherwise.
-*/
-
-Bool
-CheckDeviceGrabs(DeviceIntPtr device, DeviceEvent *event, int checkFirst)
-{
- int i;
- WindowPtr pWin = NULL;
- FocusClassPtr focus = IsPointerEvent((InternalEvent*)event) ? NULL : device->focus;
- BOOL sendCore = (IsMaster(device) && device->coreEvents);
-
- if (event->type != ET_ButtonPress &&
- event->type != ET_KeyPress)
- return FALSE;
-
- if (event->type == ET_ButtonPress
- && (device->button->buttonsDown != 1))
- return FALSE;
-
- i = checkFirst;
-
- if (focus)
- {
- for (; i < focus->traceGood; i++)
- {
- pWin = focus->trace[i];
- if (pWin->optional &&
- CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
- return TRUE;
- }
-
- if ((focus->win == NoneWin) ||
- (i >= device->spriteInfo->sprite->spriteTraceGood) ||
- ((i > checkFirst) &&
- (pWin != device->spriteInfo->sprite->spriteTrace[i-1])))
- return FALSE;
- }
-
- for (; i < device->spriteInfo->sprite->spriteTraceGood; i++)
- {
- pWin = device->spriteInfo->sprite->spriteTrace[i];
- if (pWin->optional &&
- CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
- return TRUE;
- }
-
- return FALSE;
-}
-
-/**
- * Called for keyboard events to deliver event to whatever client owns the
- * focus.
- *
- * The event is delivered to the keyboard's focus window, the root window or
- * to the window owning the input focus.
- *
- * @param keybd The keyboard originating the event.
- * @param event The event, not yet in wire format.
- * @param window Window underneath the sprite.
- */
-void
-DeliverFocusedEvent(DeviceIntPtr keybd, InternalEvent *event, WindowPtr window)
-{
- DeviceIntPtr ptr;
- WindowPtr focus = keybd->focus->win;
- BOOL sendCore = (IsMaster(keybd) && keybd->coreEvents);
- xEvent core;
- xEvent *xE = NULL, *xi2 = NULL;
- int count, rc;
- int deliveries = 0;
-
- if (focus == FollowKeyboardWin)
- focus = inputInfo.keyboard->focus->win;
- if (!focus)
- return;
- if (focus == PointerRootWin)
- {
- DeliverDeviceEvents(window, event, NullGrab, NullWindow, keybd);
- return;
- }
- if ((focus == window) || IsParent(focus, window))
- {
- if (DeliverDeviceEvents(window, event, NullGrab, focus, keybd))
- return;
- }
-
- /* just deliver it to the focus window */
- ptr = GetPairedDevice(keybd);
-
-
- rc = EventToXI2(event, &xi2);
- if (rc == Success)
- {
- /* XXX: XACE */
- int filter = GetEventFilter(keybd, xi2);
- FixUpEventFromWindow(ptr, xi2, focus, None, FALSE);
- deliveries = DeliverEventsToWindow(keybd, focus, xi2, 1,
- filter, NullGrab);
- if (deliveries > 0)
- goto unwind;
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI2 conversion failed in DFE (%d, %d). Skipping delivery.\n",
- keybd->name, event->any.type, rc);
-
- rc = EventToXI(event, &xE, &count);
- if (rc == Success &&
- XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, xE, count) == Success)
- {
- FixUpEventFromWindow(ptr, xE, focus, None, FALSE);
- deliveries = DeliverEventsToWindow(keybd, focus, xE, count,
- GetEventFilter(keybd, xE),
- NullGrab);
-
- if (deliveries > 0)
- goto unwind;
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI conversion failed in DFE (%d, %d). Skipping delivery.\n",
- keybd->name, event->any.type, rc);
-
- if (sendCore)
- {
- rc = EventToCore(event, &core);
- if (rc == Success) {
- if (XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, &core, 1) == Success) {
- FixUpEventFromWindow(keybd, &core, focus, None, FALSE);
- deliveries = DeliverEventsToWindow(keybd, focus, &core, 1,
- GetEventFilter(keybd, &core),
- NullGrab);
- }
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: core conversion failed DFE (%d, %d). Skipping delivery.\n",
- keybd->name, event->any.type, rc);
- }
-
-unwind:
- if (xE)
- xfree(xE);
- if (xi2)
- xfree(xi2);
- return;
-}
-
-/**
- * Deliver an event from a device that is currently grabbed. Uses
- * DeliverDeviceEvents() for further delivery if a ownerEvents is set on the
- * grab. If not, TryClientEvents() is used.
- *
- * @param deactivateGrab True if the device's grab should be deactivated.
- */
-void
-DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
- Bool deactivateGrab)
-{
- GrabPtr grab;
- GrabInfoPtr grabinfo;
- int deliveries = 0;
- DeviceIntPtr dev;
- SpritePtr pSprite = thisDev->spriteInfo->sprite;
- BOOL sendCore = FALSE;
- int rc, count = 0;
- xEvent *xi = NULL;
- xEvent *xi2 = NULL;
-
- grabinfo = &thisDev->deviceGrab;
- grab = grabinfo->grab;
-
- if (grab->ownerEvents)
- {
- WindowPtr focus;
-
- /* Hack: Some pointer device have a focus class. So we need to check
- * for the type of event, to see if we really want to deliver it to
- * the focus window. For pointer events, the answer is no.
- */
- if (IsPointerEvent(event))
- focus = PointerRootWin;
- else if (thisDev->focus)
- {
- focus = thisDev->focus->win;
- if (focus == FollowKeyboardWin)
- focus = inputInfo.keyboard->focus->win;
- }
- else
- focus = PointerRootWin;
- if (focus == PointerRootWin)
- deliveries = DeliverDeviceEvents(pSprite->win, event, grab,
- NullWindow, thisDev);
- else if (focus && (focus == pSprite->win ||
- IsParent(focus, pSprite->win)))
- deliveries = DeliverDeviceEvents(pSprite->win, event, grab, focus,
- thisDev);
- else if (focus)
- deliveries = DeliverDeviceEvents(focus, event, grab, focus,
- thisDev);
- }
- if (!deliveries)
- {
- Mask mask;
-
- /* XXX: In theory, we could pass the internal events through to
- * everything and only convert just before hitting the wire. We can't
- * do that yet, so DGE is the last stop for internal events. From here
- * onwards, we deal with core/XI events.
- */
-
- mask = grab->eventMask;
-
- sendCore = (IsMaster(thisDev) && thisDev->coreEvents);
- /* try core event */
- if (sendCore && grab->grabtype == GRABTYPE_CORE)
- {
- xEvent core;
-
- rc = EventToCore(event, &core);
- if (rc == Success)
- {
- FixUpEventFromWindow(thisDev, &core, grab->window,
- None, TRUE);
- if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
- grab->window, &core, 1) ||
- XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
- grab->window, &core, 1))
- deliveries = 1; /* don't send, but pretend we did */
- else if (!IsInterferingGrab(rClient(grab), thisDev, &core))
- {
- deliveries = TryClientEvents(rClient(grab), thisDev,
- &core, 1, mask,
- GetEventFilter(thisDev, &core),
- grab);
- }
- } else if (rc != BadMatch)
- ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");
- }
-
- if (!deliveries)
- {
- rc = EventToXI2(event, &xi2);
- if (rc == Success)
- {
- int evtype = ((xGenericEvent*)xi2)->evtype;
- mask = grab->xi2mask[XIAllDevices][evtype/8] |
- grab->xi2mask[XIAllMasterDevices][evtype/8] |
- grab->xi2mask[thisDev->id][evtype/8];
- /* try XI2 event */
- FixUpEventFromWindow(thisDev, xi2, grab->window, None, TRUE);
- /* XXX: XACE */
- deliveries = TryClientEvents(rClient(grab), thisDev, xi2, 1, mask,
- GetEventFilter(thisDev, xi2), grab);
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI2 conversion failed in DGE (%d, %d). Skipping delivery.\n",
- thisDev->name, event->any.type, rc);
- }
-
- if (!deliveries)
- {
- rc = EventToXI(event, &xi, &count);
- if (rc == Success)
- {
- /* try XI event */
- if (grabinfo->fromPassiveGrab &&
- grabinfo->implicitGrab)
- mask = grab->deviceMask;
- else
- mask = grab->eventMask;
-
- FixUpEventFromWindow(thisDev, xi, grab->window,
- None, TRUE);
-
- if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
- grab->window, xi, count) ||
- XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
- grab->window, xi, count))
- deliveries = 1; /* don't send, but pretend we did */
- else
- {
- deliveries =
- TryClientEvents(rClient(grab), thisDev,
- xi, count,
- mask,
- GetEventFilter(thisDev, xi),
- grab);
- }
- } else if (rc != BadMatch)
- ErrorF("[dix] %s: XI conversion failed in DGE (%d, %d). Skipping delivery.\n",
- thisDev->name, event->any.type, rc);
- }
-
- if (deliveries && (event->any.type == ET_Motion))
- thisDev->valuator->motionHintWindow = grab->window;
- }
- if (deliveries && !deactivateGrab && event->any.type != ET_Motion)
- {
- switch (grabinfo->sync.state)
- {
- case FREEZE_BOTH_NEXT_EVENT:
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev == thisDev)
- continue;
- FreezeThaw(dev, TRUE);
- if ((dev->deviceGrab.sync.state == FREEZE_BOTH_NEXT_EVENT) &&
- (CLIENT_BITS(grab->resource) ==
- CLIENT_BITS(dev->deviceGrab.sync.other->resource)))
- dev->deviceGrab.sync.state = FROZEN_NO_EVENT;
- else
- dev->deviceGrab.sync.other = grab;
- }
- /* fall through */
- case FREEZE_NEXT_EVENT:
- grabinfo->sync.state = FROZEN_WITH_EVENT;
- FreezeThaw(thisDev, TRUE);
- if (!grabinfo->sync.event)
- grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
- *grabinfo->sync.event = event->device_event;
- break;
- }
- }
-
- if (xi)
- xfree(xi);
- if (xi2)
- xfree(xi2);
-}
-
-/* This function is used to set the key pressed or key released state -
- this is only used when the pressing of keys does not cause
- the device's processInputProc to be called, as in for example Mouse Keys.
-*/
-void
-FixKeyState (DeviceEvent *event, DeviceIntPtr keybd)
-{
- int key, bit;
- BYTE *kptr;
- KeyClassPtr keyc = keybd->key;
-
- key = event->detail.key;
- kptr = &keyc->down[key >> 3];
- bit = 1 << (key & 7);
-
- if (event->type == ET_KeyPress) {
- DebugF("FixKeyState: Key %d %s\n",key,
- ((event->type == ET_KeyPress) ? "down" : "up"));
- }
-
- if (event->type == ET_KeyPress)
- *kptr |= bit;
- else if (event->type == ET_KeyRelease)
- *kptr &= ~bit;
- else
- FatalError("Impossible keyboard event");
-}
-
-#define AtMostOneClient \
- (SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask)
-#define ManagerMask \
- (SubstructureRedirectMask | ResizeRedirectMask)
-
-/**
- * Recalculate which events may be deliverable for the given window.
- * Recalculated mask is used for quicker determination which events may be
- * delivered to a window.
- *
- * The otherEventMasks on a WindowOptional is the combination of all event
- * masks set by all clients on the window.
- * deliverableEventMask is the combination of the eventMask and the
- * otherEventMask plus the events that may be propagated to the parent.
- *
- * Traverses to siblings and parents of the window.
- */
-void
-RecalculateDeliverableEvents(WindowPtr pWin)
-{
- OtherClients *others;
- WindowPtr pChild;
-
- pChild = pWin;
- while (1)
- {
- if (pChild->optional)
- {
- pChild->optional->otherEventMasks = 0;
- for (others = wOtherClients(pChild); others; others = others->next)
- {
- pChild->optional->otherEventMasks |= others->mask;
- }
- }
- pChild->deliverableEvents = pChild->eventMask|
- wOtherEventMasks(pChild);
- if (pChild->parent)
- pChild->deliverableEvents |=
- (pChild->parent->deliverableEvents &
- ~wDontPropagateMask(pChild) & PropagateMask);
- if (pChild->firstChild)
- {
- pChild = pChild->firstChild;
- continue;
- }
- while (!pChild->nextSib && (pChild != pWin))
- pChild = pChild->parent;
- if (pChild == pWin)
- break;
- pChild = pChild->nextSib;
- }
-}
-
-/**
- *
- * \param value must conform to DeleteType
- */
-int
-OtherClientGone(pointer value, XID id)
-{
- OtherClientsPtr other, prev;
- WindowPtr pWin = (WindowPtr)value;
-
- prev = 0;
- for (other = wOtherClients(pWin); other; other = other->next)
- {
- if (other->resource == id)
- {
- if (prev)
- prev->next = other->next;
- else
- {
- if (!(pWin->optional->otherClients = other->next))
- CheckWindowOptionalNeed (pWin);
- }
- xfree(other);
- RecalculateDeliverableEvents(pWin);
- return(Success);
- }
- prev = other;
- }
- FatalError("client not on event list");
- /*NOTREACHED*/
- return -1; /* make compiler happy */
-}
-
-int
-EventSelectForWindow(WindowPtr pWin, ClientPtr client, Mask mask)
-{
- Mask check;
- OtherClients * others;
- DeviceIntPtr dev;
- int rc;
-
- if (mask & ~AllEventMasks)
- {
- client->errorValue = mask;
- return BadValue;
- }
- check = (mask & ManagerMask);
- if (check) {
- rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,
- RT_WINDOW, pWin, RT_NONE, NULL, DixManageAccess);
- if (rc != Success)
- return rc;
- }
- check = (mask & AtMostOneClient);
- if (check & (pWin->eventMask|wOtherEventMasks(pWin)))
- { /* It is illegal for two different
- clients to select on any of the
- events for AtMostOneClient. However,
- it is OK, for some client to
- continue selecting on one of those
- events. */
- if ((wClient(pWin) != client) && (check & pWin->eventMask))
- return BadAccess;
- for (others = wOtherClients (pWin); others; others = others->next)
- {
- if (!SameClient(others, client) && (check & others->mask))
- return BadAccess;
- }
- }
- if (wClient (pWin) == client)
- {
- check = pWin->eventMask;
- pWin->eventMask = mask;
- }
- else
- {
- for (others = wOtherClients (pWin); others; others = others->next)
- {
- if (SameClient(others, client))
- {
- check = others->mask;
- if (mask == 0)
- {
- FreeResource(others->resource, RT_NONE);
- return Success;
- }
- else
- others->mask = mask;
- goto maskSet;
- }
- }
- check = 0;
- if (!pWin->optional && !MakeWindowOptional (pWin))
- return BadAlloc;
- others = xalloc(sizeof(OtherClients));
- if (!others)
- return BadAlloc;
- others->mask = mask;
- others->resource = FakeClientID(client->index);
- others->next = pWin->optional->otherClients;
- pWin->optional->otherClients = others;
- if (!AddResource(others->resource, RT_OTHERCLIENT, (pointer)pWin))
- return BadAlloc;
- }
-maskSet:
- if ((mask & PointerMotionHintMask) && !(check & PointerMotionHintMask))
- {
- for (dev = inputInfo.devices; dev; dev = dev->next)
- {
- if (dev->valuator && dev->valuator->motionHintWindow == pWin)
- dev->valuator->motionHintWindow = NullWindow;
- }
- }
- RecalculateDeliverableEvents(pWin);
- return Success;
-}
-
-int
-EventSuppressForWindow(WindowPtr pWin, ClientPtr client,
- Mask mask, Bool *checkOptional)
-{
- int i, free;
-
- if (mask & ~PropagateMask)
- {
- client->errorValue = mask;
- return BadValue;
- }
- if (pWin->dontPropagate)
- DontPropagateRefCnts[pWin->dontPropagate]--;
- if (!mask)
- i = 0;
- else
- {
- for (i = DNPMCOUNT, free = 0; --i > 0; )
- {
- if (!DontPropagateRefCnts[i])
- free = i;
- else if (mask == DontPropagateMasks[i])
- break;
- }
- if (!i && free)
- {
- i = free;
- DontPropagateMasks[i] = mask;
- }
- }
- if (i || !mask)
- {
- pWin->dontPropagate = i;
- if (i)
- DontPropagateRefCnts[i]++;
- if (pWin->optional)
- {
- pWin->optional->dontPropagateMask = mask;
- *checkOptional = TRUE;
- }
- }
- else
- {
- if (!pWin->optional && !MakeWindowOptional (pWin))
- {
- if (pWin->dontPropagate)
- DontPropagateRefCnts[pWin->dontPropagate]++;
- return BadAlloc;
- }
- pWin->dontPropagate = 0;
- pWin->optional->dontPropagateMask = mask;
- }
- RecalculateDeliverableEvents(pWin);
- return Success;
-}
-
-/**
- * Assembles an EnterNotify or LeaveNotify and sends it event to the client.
- * Uses the paired keyboard to get some additional information.
- */
-void
-CoreEnterLeaveEvent(
- DeviceIntPtr mouse,
- int type,
- int mode,
- int detail,
- WindowPtr pWin,
- Window child)
-{
- xEvent event;
- WindowPtr focus;
- DeviceIntPtr keybd;
- GrabPtr grab = mouse->deviceGrab.grab;
- Mask mask;
-
- keybd = GetPairedDevice(mouse);
-
- if ((pWin == mouse->valuator->motionHintWindow) &&
- (detail != NotifyInferior))
- mouse->valuator->motionHintWindow = NullWindow;
- if (grab)
- {
- mask = (pWin == grab->window) ? grab->eventMask : 0;
- if (grab->ownerEvents)
- mask |= EventMaskForClient(pWin, rClient(grab));
- }
- else
- {
- mask = pWin->eventMask | wOtherEventMasks(pWin);
- }
-
- memset(&event, 0, sizeof(xEvent));
- event.u.u.type = type;
- event.u.u.detail = detail;
- event.u.enterLeave.time = currentTime.milliseconds;
- event.u.enterLeave.rootX = mouse->spriteInfo->sprite->hot.x;
- event.u.enterLeave.rootY = mouse->spriteInfo->sprite->hot.y;
- /* Counts on the same initial structure of crossing & button events! */
- FixUpEventFromWindow(mouse, &event, pWin, None, FALSE);
- /* Enter/Leave events always set child */
- event.u.enterLeave.child = child;
- event.u.enterLeave.flags = event.u.keyButtonPointer.sameScreen ?
- ELFlagSameScreen : 0;
- event.u.enterLeave.state = mouse->button ? (mouse->button->state & 0x1f00) : 0;
- if (keybd)
- event.u.enterLeave.state |=
- XkbGrabStateFromRec(&keybd->key->xkbInfo->state);
- event.u.enterLeave.mode = mode;
- focus = (keybd) ? keybd->focus->win : None;
- if ((focus != NoneWin) &&
- ((pWin == focus) || (focus == PointerRootWin) ||
- IsParent(focus, pWin)))
- event.u.enterLeave.flags |= ELFlagFocus;
-
- if ((mask & GetEventFilter(mouse, &event)))
- {
- if (grab)
- TryClientEvents(rClient(grab), mouse, &event, 1, mask,
- GetEventFilter(mouse, &event), grab);
- else
- DeliverEventsToWindow(mouse, pWin, &event, 1,
- GetEventFilter(mouse, &event),
- NullGrab);
- }
-
- if ((type == EnterNotify) && (mask & KeymapStateMask))
- {
- xKeymapEvent ke;
- ClientPtr client = grab ? rClient(grab) : wClient(pWin);
- if (XaceHook(XACE_DEVICE_ACCESS, client, keybd, DixReadAccess))
- bzero((char *)&ke.map[0], 31);
- else
- memmove((char *)&ke.map[0], (char *)&keybd->key->down[1], 31);
-
- ke.type = KeymapNotify;
- if (grab)
- TryClientEvents(rClient(grab), keybd, (xEvent *)&ke, 1,
- mask, KeymapStateMask, grab);
- else
- DeliverEventsToWindow(mouse, pWin, (xEvent *)&ke, 1,
- KeymapStateMask, NullGrab);
- }
-}
-
-void
-DeviceEnterLeaveEvent(
- DeviceIntPtr mouse,
- int sourceid,
- int type,
- int mode,
- int detail,
- WindowPtr pWin,
- Window child)
-{
- GrabPtr grab = mouse->deviceGrab.grab;
- xXIEnterEvent *event;
- int filter;
- int btlen, len, i;
- DeviceIntPtr kbd;
-
- if ((mode == XINotifyPassiveGrab && type == XI_Leave) ||
- (mode == XINotifyPassiveUngrab && type == XI_Enter))
- return;
-
- btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0;
- btlen = bytes_to_int32(btlen);
- len = sizeof(xXIEnterEvent) + btlen * 4;
-
- event = xcalloc(1, len);
- event->type = GenericEvent;
- event->extension = IReqCode;
- event->evtype = type;
- event->length = (len - sizeof(xEvent))/4;
- event->buttons_len = btlen;
- event->detail = detail;
- event->time = currentTime.milliseconds;
- event->deviceid = mouse->id;
- event->sourceid = sourceid;
- event->mode = mode;
- event->root_x = FP1616(mouse->spriteInfo->sprite->hot.x, 0);
- event->root_y = FP1616(mouse->spriteInfo->sprite->hot.y, 0);
-
- for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
- if (BitIsOn(mouse->button->down, i))
- SetBit(&event[1], i);
-
- kbd = (IsMaster(mouse) || mouse->u.master) ? GetPairedDevice(mouse) : NULL;
- if (kbd && kbd->key)
- {
- event->mods.base_mods = kbd->key->xkbInfo->state.base_mods;
- event->mods.latched_mods = kbd->key->xkbInfo->state.latched_mods;
- event->mods.locked_mods = kbd->key->xkbInfo->state.locked_mods;
-
- event->group.base_group = kbd->key->xkbInfo->state.base_group;
- event->group.latched_group = kbd->key->xkbInfo->state.latched_group;
- event->group.locked_group = kbd->key->xkbInfo->state.locked_group;
- }
-
- FixUpEventFromWindow(mouse, (xEvent*)event, pWin, None, FALSE);
-
- filter = GetEventFilter(mouse, (xEvent*)event);
-
- if (grab)
- {
- Mask mask;
- mask = grab->xi2mask[XIAllDevices][type/8] |
- grab->xi2mask[XIAllMasterDevices][type/8] |
- grab->xi2mask[mouse->id][type/8];
- TryClientEvents(rClient(grab), mouse, (xEvent*)event, 1, mask,
- filter, grab);
- } else {
- if (!GetWindowXI2Mask(mouse, pWin, (xEvent*)event))
- goto out;
- DeliverEventsToWindow(mouse, pWin, (xEvent*)event, 1, filter,
- NullGrab);
- }
-
-out:
- xfree(event);
-}
-
-void
-CoreFocusEvent(DeviceIntPtr dev, int type, int mode, int detail, WindowPtr pWin)
-{
- xEvent event;
-
- memset(&event, 0, sizeof(xEvent));
- event.u.focus.mode = mode;
- event.u.u.type = type;
- event.u.u.detail = detail;
- event.u.focus.window = pWin->drawable.id;
-
- DeliverEventsToWindow(dev, pWin, &event, 1,
- GetEventFilter(dev, &event), NullGrab);
- if ((type == FocusIn) &&
- ((pWin->eventMask | wOtherEventMasks(pWin)) & KeymapStateMask))
- {
- xKeymapEvent ke;
- ClientPtr client = wClient(pWin);
- if (XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess))
- bzero((char *)&ke.map[0], 31);
- else
- memmove((char *)&ke.map[0], (char *)&dev->key->down[1], 31);
-
- ke.type = KeymapNotify;
- DeliverEventsToWindow(dev, pWin, (xEvent *)&ke, 1,
- KeymapStateMask, NullGrab);
- }
-}
-
-/**
- * Set the input focus to the given window. Subsequent keyboard events will be
- * delivered to the given window.
- *
- * Usually called from ProcSetInputFocus as result of a client request. If so,
- * the device is the inputInfo.keyboard.
- * If called from ProcXSetInputFocus as result of a client xinput request, the
- * device is set to the device specified by the client.
- *
- * @param client Client that requested input focus change.
- * @param dev Focus device.
- * @param focusID The window to obtain the focus. Can be PointerRoot or None.
- * @param revertTo Specifies where the focus reverts to when window becomes
- * unviewable.
- * @param ctime Specifies the time.
- * @param followOK True if pointer is allowed to follow the keyboard.
- */
-int
-SetInputFocus(
- ClientPtr client,
- DeviceIntPtr dev,
- Window focusID,
- CARD8 revertTo,
- Time ctime,
- Bool followOK)
-{
- FocusClassPtr focus;
- WindowPtr focusWin;
- int mode, rc;
- TimeStamp time;
- DeviceIntPtr keybd; /* used for FollowKeyboard or FollowKeyboardWin */
-
-
- UpdateCurrentTime();
- if ((revertTo != RevertToParent) &&
- (revertTo != RevertToPointerRoot) &&
- (revertTo != RevertToNone) &&
- ((revertTo != RevertToFollowKeyboard) || !followOK))
- {
- client->errorValue = revertTo;
- return BadValue;
- }
- time = ClientTimeToServerTime(ctime);
-
- if (IsKeyboardDevice(dev))
- keybd = dev;
- else
- keybd = GetPairedDevice(dev);
-
- if ((focusID == None) || (focusID == PointerRoot))
- focusWin = (WindowPtr)(long)focusID;
- else if ((focusID == FollowKeyboard) && followOK)
- {
- focusWin = keybd->focus->win;
- }
- else {
- rc = dixLookupWindow(&focusWin, focusID, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
- /* It is a match error to try to set the input focus to an
- unviewable window. */
- if(!focusWin->realized)
- return(BadMatch);
- }
- rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixSetFocusAccess);
- if (rc != Success)
- return Success;
-
- focus = dev->focus;
- if ((CompareTimeStamps(time, currentTime) == LATER) ||
- (CompareTimeStamps(time, focus->time) == EARLIER))
- return Success;
- mode = (dev->deviceGrab.grab) ? NotifyWhileGrabbed : NotifyNormal;
- if (focus->win == FollowKeyboardWin)
- {
- if (!ActivateFocusInGrab(dev, keybd->focus->win, focusWin))
- DoFocusEvents(dev, keybd->focus->win, focusWin, mode);
- } else
- {
- if (!ActivateFocusInGrab(dev, focus->win, focusWin))
- DoFocusEvents(dev, focus->win, focusWin, mode);
- }
- focus->time = time;
- focus->revert = revertTo;
- if (focusID == FollowKeyboard)
- focus->win = FollowKeyboardWin;
- else
- focus->win = focusWin;
- if ((focusWin == NoneWin) || (focusWin == PointerRootWin))
- focus->traceGood = 0;
- else
- {
- int depth = 0;
- WindowPtr pWin;
-
- for (pWin = focusWin; pWin; pWin = pWin->parent) depth++;
- if (depth > focus->traceSize)
- {
- focus->traceSize = depth+1;
- focus->trace = xrealloc(focus->trace,
- focus->traceSize * sizeof(WindowPtr));
- }
- focus->traceGood = depth;
- for (pWin = focusWin, depth--; pWin; pWin = pWin->parent, depth--)
- focus->trace[depth] = pWin;
- }
- return Success;
-}
-
-/**
- * Server-side protocol handling for SetInputFocus request.
- *
- * Sets the input focus for the virtual core keyboard.
- */
-int
-ProcSetInputFocus(ClientPtr client)
-{
- DeviceIntPtr kbd = PickKeyboard(client);
- REQUEST(xSetInputFocusReq);
-
- REQUEST_SIZE_MATCH(xSetInputFocusReq);
-
- return SetInputFocus(client, kbd, stuff->focus,
- stuff->revertTo, stuff->time, FALSE);
-}
-
-/**
- * Server-side protocol handling for GetInputFocus request.
- *
- * Sends the current input focus for the client's keyboard back to the
- * client.
- */
-int
-ProcGetInputFocus(ClientPtr client)
-{
- DeviceIntPtr kbd = PickKeyboard(client);
- xGetInputFocusReply rep;
- FocusClassPtr focus = kbd->focus;
- int rc;
- /* REQUEST(xReq); */
- REQUEST_SIZE_MATCH(xReq);
-
- rc = XaceHook(XACE_DEVICE_ACCESS, client, kbd, DixGetFocusAccess);
- if (rc != Success)
- return rc;
-
- memset(&rep, 0, sizeof(xGetInputFocusReply));
- rep.type = X_Reply;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
- if (focus->win == NoneWin)
- rep.focus = None;
- else if (focus->win == PointerRootWin)
- rep.focus = PointerRoot;
- else rep.focus = focus->win->drawable.id;
- rep.revertTo = focus->revert;
- WriteReplyToClient(client, sizeof(xGetInputFocusReply), &rep);
- return Success;
-}
-
-/**
- * Server-side protocol handling for GrabPointer request.
- *
- * Sets an active grab on the client's ClientPointer and returns success
- * status to client.
- */
-int
-ProcGrabPointer(ClientPtr client)
-{
- xGrabPointerReply rep;
- DeviceIntPtr device = PickPointer(client);
- GrabPtr grab;
- GrabMask mask;
- WindowPtr confineTo;
- CursorPtr oldCursor;
- REQUEST(xGrabPointerReq);
- TimeStamp time;
- int rc;
-
- REQUEST_SIZE_MATCH(xGrabPointerReq);
- UpdateCurrentTime();
-
- if (stuff->eventMask & ~PointerGrabMask)
- {
- client->errorValue = stuff->eventMask;
- return BadValue;
- }
-
- if (stuff->confineTo == None)
- confineTo = NullWindow;
- else
- {
- rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
- DixSetAttrAccess);
- if (rc != Success)
- return rc;
- }
-
- memset(&rep, 0, sizeof(xGrabPointerReply));
- oldCursor = NullCursor;
- grab = device->deviceGrab.grab;
-
- if (grab)
- {
- if (grab->confineTo && !confineTo)
- ConfineCursorToWindow(device, RootWindow(device), FALSE, FALSE);
- oldCursor = grab->cursor;
- }
-
- mask.core = stuff->eventMask;
-
- rc = GrabDevice(client, device, stuff->pointerMode, stuff->keyboardMode,
- stuff->grabWindow, stuff->ownerEvents, stuff->time,
- &mask, GRABTYPE_CORE, stuff->cursor,
- stuff->confineTo, &rep.status);
- if (rc != Success)
- return rc;
-
- if (oldCursor && rep.status == GrabSuccess)
- FreeCursor (oldCursor, (Cursor)0);
-
- time = ClientTimeToServerTime(stuff->time);
- rep.type = X_Reply;
- rep.sequenceNumber = client->sequence;
- rep.length = 0;
- WriteReplyToClient(client, sizeof(xGrabPointerReply), &rep);
- return Success;
-}
-
-/**
- * Server-side protocol handling for ChangeActivePointerGrab request.
- *
- * Changes properties of the grab hold by the client. If the client does not
- * hold an active grab on the device, nothing happens.
- */
-int
-ProcChangeActivePointerGrab(ClientPtr client)
-{
- DeviceIntPtr device;
- GrabPtr grab;
- CursorPtr newCursor, oldCursor;
- REQUEST(xChangeActivePointerGrabReq);
- TimeStamp time;
-
- REQUEST_SIZE_MATCH(xChangeActivePointerGrabReq);
- if (stuff->eventMask & ~PointerGrabMask)
- {
- client->errorValue = stuff->eventMask;
- return BadValue;
- }
- if (stuff->cursor == None)
- newCursor = NullCursor;
- else
- {
- int rc = dixLookupResourceByType((pointer *)&newCursor, stuff->cursor,
- RT_CURSOR, client, DixUseAccess);
- if (rc != Success)
- {
- client->errorValue = stuff->cursor;
- return (rc == BadValue) ? BadCursor : rc;
- }
- }
-
- device = PickPointer(client);
- grab = device->deviceGrab.grab;
-
- if (!grab)
- return Success;
- if (!SameClient(grab, client))
- return Success;
- time = ClientTimeToServerTime(stuff->time);
- if ((CompareTimeStamps(time, currentTime) == LATER) ||
- (CompareTimeStamps(time, device->deviceGrab.grabTime) == EARLIER))
- return Success;
- oldCursor = grab->cursor;
- grab->cursor = newCursor;
- if (newCursor)
- newCursor->refcnt++;
- PostNewCursor(device);
- if (oldCursor)
- FreeCursor(oldCursor, (Cursor)0);
- grab->eventMask = stuff->eventMask;
- return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabPointer request.
- *
- * Deletes a pointer grab on a device the client has grabbed.
- */
-int
-ProcUngrabPointer(ClientPtr client)
-{
- DeviceIntPtr device = PickPointer(client);
- GrabPtr grab;
- TimeStamp time;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- UpdateCurrentTime();
- grab = device->deviceGrab.grab;
-
- time = ClientTimeToServerTime(stuff->id);
- if ((CompareTimeStamps(time, currentTime) != LATER) &&
- (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
- (grab) && SameClient(grab, client))
- (*device->deviceGrab.DeactivateGrab)(device);
- return Success;
-}
-
-/**
- * Sets a grab on the given device.
- *
- * Called from ProcGrabKeyboard to work on the client's keyboard.
- * Called from ProcXGrabDevice to work on the device specified by the client.
- *
- * The parameters this_mode and other_mode represent the keyboard_mode and
- * pointer_mode parameters of XGrabKeyboard().
- * See man page for details on all the parameters
- *
- * @param client Client that owns the grab.
- * @param dev The device to grab.
- * @param this_mode GrabModeSync or GrabModeAsync
- * @param other_mode GrabModeSync or GrabModeAsync
- * @param status Return code to be returned to the caller.
- *
- * @returns Success or BadValue.
- */
-int
-GrabDevice(ClientPtr client, DeviceIntPtr dev,
- unsigned pointer_mode, unsigned keyboard_mode, Window grabWindow,
- unsigned ownerEvents, Time ctime, GrabMask *mask,
- int grabtype, Cursor curs, Window confineToWin, CARD8 *status)
-{
- WindowPtr pWin, confineTo;
- GrabPtr grab;
- TimeStamp time;
- Mask access_mode = DixGrabAccess;
- int rc;
- GrabInfoPtr grabInfo = &dev->deviceGrab;
- CursorPtr cursor;
-
- UpdateCurrentTime();
- if ((keyboard_mode != GrabModeSync) && (keyboard_mode != GrabModeAsync))
- {
- client->errorValue = keyboard_mode;
- return BadValue;
- }
- if ((pointer_mode != GrabModeSync) && (pointer_mode != GrabModeAsync))
- {
- client->errorValue = pointer_mode;
- return BadValue;
- }
- if ((ownerEvents != xFalse) && (ownerEvents != xTrue))
- {
- client->errorValue = ownerEvents;
- return BadValue;
- }
-
- rc = dixLookupWindow(&pWin, grabWindow, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
-
- if (confineToWin == None)
- confineTo = NullWindow;
- else
- {
- rc = dixLookupWindow(&confineTo, confineToWin, client,
- DixSetAttrAccess);
- if (rc != Success)
- return rc;
- }
-
- if (curs == None)
- cursor = NullCursor;
- else
- {
- rc = dixLookupResourceByType((pointer *)&cursor, curs, RT_CURSOR,
- client, DixUseAccess);
- if (rc != Success)
- {
- client->errorValue = curs;
- return (rc == BadValue) ? BadCursor : rc;
- }
- access_mode |= DixForceAccess;
- }
-
- if (keyboard_mode == GrabModeSync || pointer_mode == GrabModeSync)
- access_mode |= DixFreezeAccess;
- rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
- if (rc != Success)
- return rc;
-
- time = ClientTimeToServerTime(ctime);
- grab = grabInfo->grab;
- if (grab && grab->grabtype != grabtype)
- *status = AlreadyGrabbed;
- if (grab && !SameClient(grab, client))
- *status = AlreadyGrabbed;
- else if ((!pWin->realized) ||
- (confineTo &&
- !(confineTo->realized
- && BorderSizeNotEmpty(dev, confineTo))))
- *status = GrabNotViewable;
- else if ((CompareTimeStamps(time, currentTime) == LATER) ||
- (CompareTimeStamps(time, grabInfo->grabTime) == EARLIER))
- *status = GrabInvalidTime;
- else if (grabInfo->sync.frozen &&
- grabInfo->sync.other && !SameClient(grabInfo->sync.other, client))
- *status = GrabFrozen;
- else
- {
- GrabRec tempGrab;
-
- /* Otherwise segfaults happen on grabbed MPX devices */
- memset(&tempGrab, 0, sizeof(GrabRec));
-
- tempGrab.next = NULL;
- tempGrab.window = pWin;
- tempGrab.resource = client->clientAsMask;
- tempGrab.ownerEvents = ownerEvents;
- tempGrab.keyboardMode = keyboard_mode;
- tempGrab.pointerMode = pointer_mode;
- if (grabtype == GRABTYPE_CORE)
- tempGrab.eventMask = mask->core;
- else if (grabtype == GRABTYPE_XI)
- tempGrab.eventMask = mask->xi;
- else
- memcpy(tempGrab.xi2mask, mask->xi2mask, sizeof(tempGrab.xi2mask));
- tempGrab.device = dev;
- tempGrab.cursor = cursor;
- tempGrab.confineTo = confineTo;
- tempGrab.grabtype = grabtype;
- (*grabInfo->ActivateGrab)(dev, &tempGrab, time, FALSE);
- *status = GrabSuccess;
- }
- return Success;
-}
-
-/**
- * Server-side protocol handling for GrabKeyboard request.
- *
- * Grabs the client's keyboard and returns success status to client.
- */
-int
-ProcGrabKeyboard(ClientPtr client)
-{
- xGrabKeyboardReply rep;
- REQUEST(xGrabKeyboardReq);
- int result;
- DeviceIntPtr keyboard = PickKeyboard(client);
- GrabMask mask;
-
- REQUEST_SIZE_MATCH(xGrabKeyboardReq);
-
- memset(&rep, 0, sizeof(xGrabKeyboardReply));
- mask.core = KeyPressMask | KeyReleaseMask;
-
- result = GrabDevice(client, keyboard, stuff->pointerMode,
- stuff->keyboardMode, stuff->grabWindow, stuff->ownerEvents,
- stuff->time, &mask, GRABTYPE_CORE, None, None,
- &rep.status);
-
- if (result != Success)
- return result;
- rep.type = X_Reply;
- rep.sequenceNumber = client->sequence;
- rep.length = 0;
- WriteReplyToClient(client, sizeof(xGrabKeyboardReply), &rep);
- return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabKeyboard request.
- *
- * Deletes a possible grab on the client's keyboard.
- */
-int
-ProcUngrabKeyboard(ClientPtr client)
-{
- DeviceIntPtr device = PickKeyboard(client);
- GrabPtr grab;
- TimeStamp time;
- REQUEST(xResourceReq);
-
- REQUEST_SIZE_MATCH(xResourceReq);
- UpdateCurrentTime();
-
- grab = device->deviceGrab.grab;
-
- time = ClientTimeToServerTime(stuff->id);
- if ((CompareTimeStamps(time, currentTime) != LATER) &&
- (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
- (grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_CORE)
- (*device->deviceGrab.DeactivateGrab)(device);
- return Success;
-}
-
-/**
- * Server-side protocol handling for QueryPointer request.
- *
- * Returns the current state and position of the client's ClientPointer to the
- * client.
- */
-int
-ProcQueryPointer(ClientPtr client)
-{
- xQueryPointerReply rep;
- WindowPtr pWin, t;
- DeviceIntPtr mouse = PickPointer(client);
- DeviceIntPtr keyboard;
- SpritePtr pSprite;
- int rc;
- REQUEST(xResourceReq);
- REQUEST_SIZE_MATCH(xResourceReq);
-
- rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
- rc = XaceHook(XACE_DEVICE_ACCESS, client, mouse, DixReadAccess);
- if (rc != Success && rc != BadAccess)
- return rc;
-
- keyboard = GetPairedDevice(mouse);
-
- pSprite = mouse->spriteInfo->sprite;
- if (mouse->valuator->motionHintWindow)
- MaybeStopHint(mouse, client);
- memset(&rep, 0, sizeof(xQueryPointerReply));
- rep.type = X_Reply;
- rep.sequenceNumber = client->sequence;
- rep.mask = mouse->button ? (mouse->button->state) : 0;
- rep.mask |= XkbStateFieldFromRec(&keyboard->key->xkbInfo->state);
- rep.length = 0;
- rep.root = (RootWindow(mouse))->drawable.id;
- rep.rootX = pSprite->hot.x;
- rep.rootY = pSprite->hot.y;
- rep.child = None;
- if (pSprite->hot.pScreen == pWin->drawable.pScreen)
- {
- rep.sameScreen = xTrue;
- rep.winX = pSprite->hot.x - pWin->drawable.x;
- rep.winY = pSprite->hot.y - pWin->drawable.y;
- for (t = pSprite->win; t; t = t->parent)
- if (t->parent == pWin)
- {
- rep.child = t->drawable.id;
- break;
- }
- }
- else
- {
- rep.sameScreen = xFalse;
- rep.winX = 0;
- rep.winY = 0;
- }
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension) {
- rep.rootX += panoramiXdataPtr[0].x;
- rep.rootY += panoramiXdataPtr[0].y;
- if(stuff->id == rep.root) {
- rep.winX += panoramiXdataPtr[0].x;
- rep.winY += panoramiXdataPtr[0].y;
- }
- }
-#endif
-
- if (rc == BadAccess) {
- rep.mask = 0;
- rep.child = None;
- rep.rootX = 0;
- rep.rootY = 0;
- rep.winX = 0;
- rep.winY = 0;
- }
-
- WriteReplyToClient(client, sizeof(xQueryPointerReply), &rep);
-
- return(Success);
-}
-
-/**
- * Initializes the device list and the DIX sprite to sane values. Allocates
- * trace memory used for quick window traversal.
- */
-void
-InitEvents(void)
-{
- int i;
-
- inputInfo.numDevices = 0;
- inputInfo.devices = (DeviceIntPtr)NULL;
- inputInfo.off_devices = (DeviceIntPtr)NULL;
- inputInfo.keyboard = (DeviceIntPtr)NULL;
- inputInfo.pointer = (DeviceIntPtr)NULL;
- /* The mask for pointer motion events may have changed in the last server
- * generation. See comment above definition of filters. */
- filters[0][PointerMotionMask] = MotionNotify;
- for (i = 1; i < MAXDEVICES; i++)
- {
- memcpy(&filters[i], filters[0], sizeof(filters[0]));
- }
-
- syncEvents.replayDev = (DeviceIntPtr)NULL;
- syncEvents.replayWin = NullWindow;
- while (syncEvents.pending)
- {
- QdEventPtr next = syncEvents.pending->next;
- xfree(syncEvents.pending);
- syncEvents.pending = next;
- }
- syncEvents.pendtail = &syncEvents.pending;
- syncEvents.playingEvents = FALSE;
- syncEvents.time.months = 0;
- syncEvents.time.milliseconds = 0; /* hardly matters */
- currentTime.months = 0;
- currentTime.milliseconds = GetTimeInMillis();
- lastDeviceEventTime = currentTime;
- for (i = 0; i < DNPMCOUNT; i++)
- {
- DontPropagateMasks[i] = 0;
- DontPropagateRefCnts[i] = 0;
- }
-
- InputEventListLen = GetMaximumEventsNum();
- InputEventList = InitEventList(InputEventListLen);
- if (!InputEventList)
- FatalError("[dix] Failed to allocate input event list.\n");
-}
-
-void
-CloseDownEvents(void)
-{
- FreeEventList(InputEventList, InputEventListLen);
- InputEventListLen = 0;
- InputEventList = NULL;
-}
-
-/**
- * Server-side protocol handling for SendEvent request.
- *
- * Locates the window to send the event to and forwards the event.
- */
-int
-ProcSendEvent(ClientPtr client)
-{
- WindowPtr pWin;
- WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */
- DeviceIntPtr dev = PickPointer(client);
- DeviceIntPtr keybd = GetPairedDevice(dev);
- SpritePtr pSprite = dev->spriteInfo->sprite;
- REQUEST(xSendEventReq);
-
- REQUEST_SIZE_MATCH(xSendEventReq);
-
- /* The client's event type must be a core event type or one defined by an
- extension. */
-
- if ( ! ((stuff->event.u.u.type > X_Reply &&
- stuff->event.u.u.type < LASTEvent) ||
- (stuff->event.u.u.type >= EXTENSION_EVENT_BASE &&
- stuff->event.u.u.type < (unsigned)lastEvent)))
- {
- client->errorValue = stuff->event.u.u.type;
- return BadValue;
- }
- if (stuff->event.u.u.type == ClientMessage &&
- stuff->event.u.u.detail != 8 &&
- stuff->event.u.u.detail != 16 &&
- stuff->event.u.u.detail != 32)
- {
- client->errorValue = stuff->event.u.u.detail;
- return BadValue;
- }
- if (stuff->eventMask & ~AllEventMasks)
- {
- client->errorValue = stuff->eventMask;
- return BadValue;
- }
-
- if (stuff->destination == PointerWindow)
- pWin = pSprite->win;
- else if (stuff->destination == InputFocus)
- {
- WindowPtr inputFocus = (keybd) ? keybd->focus->win : NoneWin;
-
- if (inputFocus == NoneWin)
- return Success;
-
- /* If the input focus is PointerRootWin, send the event to where
- the pointer is if possible, then perhaps propogate up to root. */
- if (inputFocus == PointerRootWin)
- inputFocus = pSprite->spriteTrace[0]; /* Root window! */
-
- if (IsParent(inputFocus, pSprite->win))
- {
- effectiveFocus = inputFocus;
- pWin = pSprite->win;
- }
- else
- effectiveFocus = pWin = inputFocus;
- }
- else
- dixLookupWindow(&pWin, stuff->destination, client, DixSendAccess);
-
- if (!pWin)
- return BadWindow;
- if ((stuff->propagate != xFalse) && (stuff->propagate != xTrue))
- {
- client->errorValue = stuff->propagate;
- return BadValue;
- }
- stuff->event.u.u.type |= 0x80;
- if (stuff->propagate)
- {
- for (;pWin; pWin = pWin->parent)
- {
- if (XaceHook(XACE_SEND_ACCESS, client, NULL, pWin,
- &stuff->event, 1))
- return Success;
- if (DeliverEventsToWindow(dev, pWin,
- &stuff->event, 1, stuff->eventMask, NullGrab))
- return Success;
- if (pWin == effectiveFocus)
- return Success;
- stuff->eventMask &= ~wDontPropagateMask(pWin);
- if (!stuff->eventMask)
- break;
- }
- }
- else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, &stuff->event, 1))
- DeliverEventsToWindow(dev, pWin, &stuff->event,
- 1, stuff->eventMask, NullGrab);
- return Success;
-}
-
-/**
- * Server-side protocol handling for UngrabKey request.
- *
- * Deletes a passive grab for the given key. Works on the
- * client's keyboard.
- */
-int
-ProcUngrabKey(ClientPtr client)
-{
- REQUEST(xUngrabKeyReq);
- WindowPtr pWin;
- GrabRec tempGrab;
- DeviceIntPtr keybd = PickKeyboard(client);
- int rc;
-
- REQUEST_SIZE_MATCH(xUngrabKeyReq);
- rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixGetAttrAccess);
- if (rc != Success)
- return rc;
-
- if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
- (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
- && (stuff->key != AnyKey))
- {
- client->errorValue = stuff->key;
- return BadValue;
- }
- if ((stuff->modifiers != AnyModifier) &&
- (stuff->modifiers & ~AllModifiersMask))
- {
- client->errorValue = stuff->modifiers;
- return BadValue;
- }
- tempGrab.resource = client->clientAsMask;
- tempGrab.device = keybd;
- tempGrab.window = pWin;
- tempGrab.modifiersDetail.exact = stuff->modifiers;
- tempGrab.modifiersDetail.pMask = NULL;
- tempGrab.modifierDevice = GetPairedDevice(keybd);
- tempGrab.type = KeyPress;
- tempGrab.grabtype = GRABTYPE_CORE;
- tempGrab.detail.exact = stuff->key;
- tempGrab.detail.pMask = NULL;
- tempGrab.next = NULL;
-
- if (!DeletePassiveGrabFromList(&tempGrab))
- return(BadAlloc);
- return(Success);
-}
-
-/**
- * Server-side protocol handling for GrabKey request.
- *
- * Creates a grab for the client's keyboard and adds it to the list of passive
- * grabs.
- */
-int
-ProcGrabKey(ClientPtr client)
-{
- WindowPtr pWin;
- REQUEST(xGrabKeyReq);
- GrabPtr grab;
- DeviceIntPtr keybd = PickKeyboard(client);
- int rc;
- GrabParameters param;
- GrabMask mask;
-
- REQUEST_SIZE_MATCH(xGrabKeyReq);
-
- memset(&param, 0, sizeof(param));
- param.grabtype = GRABTYPE_CORE;
- param.ownerEvents = stuff->ownerEvents;
- param.this_device_mode = stuff->keyboardMode;
- param.other_devices_mode = stuff->pointerMode;
- param.modifiers = stuff->modifiers;
-
- rc = CheckGrabValues(client, &param);
- if (rc != Success)
- return rc;
-
- if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
- (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
- && (stuff->key != AnyKey))
- {
- client->errorValue = stuff->key;
- return BadValue;
- }
- rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
-
-
- mask.core = (KeyPressMask | KeyReleaseMask);
-
- grab = CreateGrab(client->index, keybd, keybd, pWin, GRABTYPE_CORE, &mask,
- &param, KeyPress, stuff->key, NullWindow, NullCursor);
- if (!grab)
- return BadAlloc;
- return AddPassiveGrabToList(client, grab);
-}
-
-
-/**
- * Server-side protocol handling for GrabButton request.
- *
- * Creates a grab for the client's ClientPointer and adds it as a passive grab
- * to the list.
- */
-int
-ProcGrabButton(ClientPtr client)
-{
- WindowPtr pWin, confineTo;
- REQUEST(xGrabButtonReq);
- CursorPtr cursor;
- GrabPtr grab;
- DeviceIntPtr ptr, modifierDevice;
- Mask access_mode = DixGrabAccess;
- GrabMask mask;
- GrabParameters param;
- int rc;
-
- REQUEST_SIZE_MATCH(xGrabButtonReq);
- if ((stuff->pointerMode != GrabModeSync) &&
- (stuff->pointerMode != GrabModeAsync))
- {
- client->errorValue = stuff->pointerMode;
- return BadValue;
- }
- if ((stuff->keyboardMode != GrabModeSync) &&
- (stuff->keyboardMode != GrabModeAsync))
- {
- client->errorValue = stuff->keyboardMode;
- return BadValue;
- }
- if ((stuff->modifiers != AnyModifier) &&
- (stuff->modifiers & ~AllModifiersMask))
- {
- client->errorValue = stuff->modifiers;
- return BadValue;
- }
- if ((stuff->ownerEvents != xFalse) && (stuff->ownerEvents != xTrue))
- {
- client->errorValue = stuff->ownerEvents;
- return BadValue;
- }
- if (stuff->eventMask & ~PointerGrabMask)
- {
- client->errorValue = stuff->eventMask;
- return BadValue;
- }
- rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
- if (rc != Success)
- return rc;
- if (stuff->confineTo == None)
- confineTo = NullWindow;
- else {
- rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
- DixSetAttrAccess);
- if (rc != Success)
- return rc;
- }
- if (stuff->cursor == None)
- cursor = NullCursor;
- else
- {
- rc = dixLookupResourceByType((pointer *)&cursor, stuff->cursor, RT_CURSOR,
- client, DixUseAccess);
- if (rc != Success)
- if (!cursor)
- {
- client->errorValue = stuff->cursor;
- return (rc == BadValue) ? BadCursor : rc;
- }
- access_mode |= DixForceAccess;
- }
-
- ptr = PickPointer(client);
- modifierDevice = GetPairedDevice(ptr);
- if (stuff->pointerMode == GrabModeSync ||
- stuff->keyboardMode == GrabModeSync)
- access_mode |= DixFreezeAccess;
- rc = XaceHook(XACE_DEVICE_ACCESS, client, ptr, access_mode);
- if (rc != Success)
- return rc;
-
- memset(&param, 0, sizeof(param));
- param.grabtype = GRABTYPE_CORE;
- param.ownerEvents = stuff->ownerEvents;
- param.this_device_mode = stuff->keyboardMode;
- param.other_devices_mode = stuff->pointerMode;
- param.modifiers = stuff->modifiers;
-
- mask.core = stuff->eventMask;
-
- grab = CreateGrab(client->index, ptr, modifierDevice, pWin,
- GRABTYPE_CORE, &mask, &param, ButtonPress,
- stuff->button, confineTo, cursor);
- if (!grab)
- return BadAlloc;
- return AddPassiveGrabToList(client, grab);
-}
-
-/**
- * Server-side protocol handling for UngrabButton request.
- *
- * Deletes a passive grab on the client's ClientPointer from the list.
- */
-int
-ProcUngrabButton(ClientPtr client)
-{
- REQUEST(xUngrabButtonReq);
- WindowPtr pWin;
- GrabRec tempGrab;
- int rc;
- DeviceIntPtr ptr;
-
- REQUEST_SIZE_MATCH(xUngrabButtonReq);
- if ((stuff->modifiers != AnyModifier) &&
- (stuff->modifiers & ~AllModifiersMask))
- {
- client->errorValue = stuff->modifiers;
- return BadValue;
- }
- rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixReadAccess);
- if (rc != Success)
- return rc;
-
- ptr = PickPointer(client);
-
- tempGrab.resource = client->clientAsMask;
- tempGrab.device = ptr;
- tempGrab.window = pWin;
- tempGrab.modifiersDetail.exact = stuff->modifiers;
- tempGrab.modifiersDetail.pMask = NULL;
- tempGrab.modifierDevice = GetPairedDevice(ptr);
- tempGrab.type = ButtonPress;
- tempGrab.detail.exact = stuff->button;
- tempGrab.grabtype = GRABTYPE_CORE;
- tempGrab.detail.pMask = NULL;
- tempGrab.next = NULL;
-
- if (!DeletePassiveGrabFromList(&tempGrab))
- return(BadAlloc);
- return(Success);
-}
-
-/**
- * Deactivate any grab that may be on the window, remove the focus.
- * Delete any XInput extension events from the window too. Does not change the
- * window mask. Use just before the window is deleted.
- *
- * If freeResources is set, passive grabs on the window are deleted.
- *
- * @param pWin The window to delete events from.
- * @param freeResources True if resources associated with the window should be
- * deleted.
- */
-void
-DeleteWindowFromAnyEvents(WindowPtr pWin, Bool freeResources)
-{
- WindowPtr parent;
- DeviceIntPtr mouse = inputInfo.pointer;
- DeviceIntPtr keybd = inputInfo.keyboard;
- FocusClassPtr focus;
- OtherClientsPtr oc;
- GrabPtr passive;
- GrabPtr grab;
-
-
- /* Deactivate any grabs performed on this window, before making any
- input focus changes. */
- grab = mouse->deviceGrab.grab;
- if (grab &&
- ((grab->window == pWin) || (grab->confineTo == pWin)))
- (*mouse->deviceGrab.DeactivateGrab)(mouse);
-
-
- /* Deactivating a keyboard grab should cause focus events. */
- grab = keybd->deviceGrab.grab;
- if (grab && (grab->window == pWin))
- (*keybd->deviceGrab.DeactivateGrab)(keybd);
-
- /* And now the real devices */
- for (mouse = inputInfo.devices; mouse; mouse = mouse->next)
- {
- grab = mouse->deviceGrab.grab;
- if (grab && ((grab->window == pWin) || (grab->confineTo == pWin)))
- (*mouse->deviceGrab.DeactivateGrab)(mouse);
- }
-
-
- for (keybd = inputInfo.devices; keybd; keybd = keybd->next)
- {
- if (IsKeyboardDevice(keybd))
- {
- focus = keybd->focus;
-
- /* If the focus window is a root window (ie. has no parent) then don't
- delete the focus from it. */
-
- if ((pWin == focus->win) && (pWin->parent != NullWindow))
- {
- int focusEventMode = NotifyNormal;
-
- /* If a grab is in progress, then alter the mode of focus events. */
-
- if (keybd->deviceGrab.grab)
- focusEventMode = NotifyWhileGrabbed;
-
- switch (focus->revert)
- {
- case RevertToNone:
- DoFocusEvents(keybd, pWin, NoneWin, focusEventMode);
- focus->win = NoneWin;
- focus->traceGood = 0;
- break;
- case RevertToParent:
- parent = pWin;
- do
- {
- parent = parent->parent;
- focus->traceGood--;
- } while (!parent->realized
- /* This would be a good protocol change -- windows being reparented
- during SaveSet processing would cause the focus to revert to the
- nearest enclosing window which will survive the death of the exiting
- client, instead of ending up reverting to a dying window and thence
- to None
- */
-#ifdef NOTDEF
- || wClient(parent)->clientGone
-#endif
- );
- if (!ActivateFocusInGrab(keybd, pWin, parent))
- DoFocusEvents(keybd, pWin, parent, focusEventMode);
- focus->win = parent;
- focus->revert = RevertToNone;
- break;
- case RevertToPointerRoot:
- if (!ActivateFocusInGrab(keybd, pWin, PointerRootWin))
- DoFocusEvents(keybd, pWin, PointerRootWin, focusEventMode);
- focus->win = PointerRootWin;
- focus->traceGood = 0;
- break;
- }
- }
- }
-
- if (IsPointerDevice(keybd))
- {
- if (keybd->valuator->motionHintWindow == pWin)
- keybd->valuator->motionHintWindow = NullWindow;
- }
- }
-
- if (freeResources)
- {
- if (pWin->dontPropagate)
- DontPropagateRefCnts[pWin->dontPropagate]--;
- while ( (oc = wOtherClients(pWin)) )
- FreeResource(oc->resource, RT_NONE);
- while ( (passive = wPassiveGrabs(pWin)) )
- FreeResource(passive->resource, RT_NONE);
- }
-
- DeleteWindowFromAnyExtEvents(pWin, freeResources);
-}
-
-/**
- * Call this whenever some window at or below pWin has changed geometry. If
- * there is a grab on the window, the cursor will be re-confined into the
- * window.
- */
-void
-CheckCursorConfinement(WindowPtr pWin)
-{
- GrabPtr grab;
- WindowPtr confineTo;
- DeviceIntPtr pDev;
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum) return;
-#endif
-
- for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
- {
- if (DevHasCursor(pDev))
- {
- grab = pDev->deviceGrab.grab;
- if (grab && (confineTo = grab->confineTo))
- {
- if (!BorderSizeNotEmpty(pDev, confineTo))
- (*pDev->deviceGrab.DeactivateGrab)(pDev);
- else if ((pWin == confineTo) || IsParent(pWin, confineTo))
- ConfineCursorToWindow(pDev, confineTo, TRUE, TRUE);
- }
- }
- }
-}
-
-Mask
-EventMaskForClient(WindowPtr pWin, ClientPtr client)
-{
- OtherClientsPtr other;
-
- if (wClient (pWin) == client)
- return pWin->eventMask;
- for (other = wOtherClients(pWin); other; other = other->next)
- {
- if (SameClient(other, client))
- return other->mask;
- }
- return 0;
-}
-
-/**
- * Server-side protocol handling for RecolorCursor request.
- */
-int
-ProcRecolorCursor(ClientPtr client)
-{
- CursorPtr pCursor;
- int rc, nscr;
- ScreenPtr pscr;
- Bool displayed;
- SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite;
- REQUEST(xRecolorCursorReq);
-
- REQUEST_SIZE_MATCH(xRecolorCursorReq);
- rc = dixLookupResourceByType((pointer *)&pCursor, stuff->cursor, RT_CURSOR,
- client, DixWriteAccess);
- if (rc != Success)
- {
- client->errorValue = stuff->cursor;
- return (rc == BadValue) ? BadCursor : rc;
- }
-
- pCursor->foreRed = stuff->foreRed;
- pCursor->foreGreen = stuff->foreGreen;
- pCursor->foreBlue = stuff->foreBlue;
-
- pCursor->backRed = stuff->backRed;
- pCursor->backGreen = stuff->backGreen;
- pCursor->backBlue = stuff->backBlue;
-
- for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
- {
- pscr = screenInfo.screens[nscr];
-#ifdef PANORAMIX
- if(!noPanoramiXExtension)
- displayed = (pscr == pSprite->screen);
- else
-#endif
- displayed = (pscr == pSprite->hotPhys.pScreen);
- ( *pscr->RecolorCursor)(PickPointer(client), pscr, pCursor,
- (pCursor == pSprite->current) && displayed);
- }
- return (Success);
-}
-
-/**
- * Write the given events to a client, swapping the byte order if necessary.
- * To swap the byte ordering, a callback is called that has to be set up for
- * the given event type.
- *
- * In the case of DeviceMotionNotify trailed by DeviceValuators, the events
- * can be more than one. Usually it's just one event.
- *
- * Do not modify the event structure passed in. See comment below.
- *
- * @param pClient Client to send events to.
- * @param count Number of events.
- * @param events The event list.
- */
-void
-WriteEventsToClient(ClientPtr pClient, int count, xEvent *events)
-{
-#ifdef PANORAMIX
- xEvent eventCopy;
-#endif
- xEvent *eventTo, *eventFrom;
- int i,
- eventlength = sizeof(xEvent);
-
- /* Let XKB rewrite the state, as it depends on client preferences. */
- XkbFilterEvents(pClient, count, events);
-
-#ifdef PANORAMIX
- if(!noPanoramiXExtension &&
- (panoramiXdataPtr[0].x || panoramiXdataPtr[0].y))
- {
- switch(events->u.u.type) {
- case MotionNotify:
- case ButtonPress:
- case ButtonRelease:
- case KeyPress:
- case KeyRelease:
- case EnterNotify:
- case LeaveNotify:
- /*
- When multiple clients want the same event DeliverEventsToWindow
- passes the same event structure multiple times so we can't
- modify the one passed to us
- */
- count = 1; /* should always be 1 */
- memcpy(&eventCopy, events, sizeof(xEvent));
- eventCopy.u.keyButtonPointer.rootX += panoramiXdataPtr[0].x;
- eventCopy.u.keyButtonPointer.rootY += panoramiXdataPtr[0].y;
- if(eventCopy.u.keyButtonPointer.event ==
- eventCopy.u.keyButtonPointer.root)
- {
- eventCopy.u.keyButtonPointer.eventX += panoramiXdataPtr[0].x;
- eventCopy.u.keyButtonPointer.eventY += panoramiXdataPtr[0].y;
- }
- events = &eventCopy;
- break;
- default: break;
- }
- }
-#endif
-
- if (EventCallback)
- {
- EventInfoRec eventinfo;
- eventinfo.client = pClient;
- eventinfo.events = events;
- eventinfo.count = count;
- CallCallbacks(&EventCallback, (pointer)&eventinfo);
- }
-#ifdef XSERVER_DTRACE
- if (XSERVER_SEND_EVENT_ENABLED()) {
- for (i = 0; i < count; i++)
- {
- XSERVER_SEND_EVENT(pClient->index, events[i].u.u.type, &events[i]);
- }
- }
-#endif
- /* Just a safety check to make sure we only have one GenericEvent, it just
- * makes things easier for me right now. (whot) */
- for (i = 1; i < count; i++)
- {
- if (events[i].u.u.type == GenericEvent)
- {
- ErrorF("[dix] TryClientEvents: Only one GenericEvent at a time.\n");
- return;
- }
- }
-
- if (events->u.u.type == GenericEvent)
- {
- eventlength += ((xGenericEvent*)events)->length * 4;
- }
-
- if(pClient->swapped)
- {
- if (eventlength > swapEventLen)
- {
- swapEventLen = eventlength;
- swapEvent = Xrealloc(swapEvent, swapEventLen);
- if (!swapEvent)
- {
- FatalError("WriteEventsToClient: Out of memory.\n");
- return;
- }
- }
-
- for(i = 0; i < count; i++)
- {
- eventFrom = &events[i];
- eventTo = swapEvent;
-
- /* Remember to strip off the leading bit of type in case
- this event was sent with "SendEvent." */
- (*EventSwapVector[eventFrom->u.u.type & 0177])
- (eventFrom, eventTo);
-
- WriteToClient(pClient, eventlength, (char *)eventTo);
- }
- }
- else
- {
- /* only one GenericEvent, remember? that means either count is 1 and
- * eventlength is arbitrary or eventlength is 32 and count doesn't
- * matter. And we're all set. Woohoo. */
- WriteToClient(pClient, count * eventlength, (char *) events);
- }
-}
-
-/*
- * Set the client pointer for the given client.
- *
- * A client can have exactly one ClientPointer. Each time a
- * request/reply/event is processed and the choice of devices is ambiguous
- * (e.g. QueryPointer request), the server will pick the ClientPointer (see
- * PickPointer()).
- * If a keyboard is needed, the first keyboard paired with the CP is used.
- */
-int
-SetClientPointer(ClientPtr client, DeviceIntPtr device)
-{
- int rc = XaceHook(XACE_DEVICE_ACCESS, client, device, DixUseAccess);
- if (rc != Success)
- return rc;
-
- if (!IsMaster(device))
- {
- ErrorF("[dix] Need master device for ClientPointer. This is a bug.\n");
- return BadDevice;
- } else if (!device->spriteInfo->spriteOwner)
- {
- ErrorF("[dix] Device %d does not have a sprite. "
- "Cannot be ClientPointer\n", device->id);
- return BadDevice;
- }
- client->clientPtr = device;
- return Success;
-}
-
-/* PickPointer will pick an appropriate pointer for the given client.
- *
- * An "appropriate device" is (in order of priority):
- * 1) A device the given client has a core grab on.
- * 2) A device set as ClientPointer for the given client.
- * 3) The first master device.
- */
-DeviceIntPtr
-PickPointer(ClientPtr client)
-{
- DeviceIntPtr it = inputInfo.devices;
-
- /* First, check if the client currently has a grab on a device. Even
- * keyboards count. */
- for(it = inputInfo.devices; it; it = it->next)
- {
- GrabPtr grab = it->deviceGrab.grab;
- if (grab && grab->grabtype == GRABTYPE_CORE && SameClient(grab, client))
- {
- it = GetMaster(it, MASTER_POINTER);
- return it; /* Always return a core grabbed device */
- }
- }
-
- if (!client->clientPtr)
- {
- DeviceIntPtr it = inputInfo.devices;
- while (it)
- {
- if (IsMaster(it) && it->spriteInfo->spriteOwner)
- {
- client->clientPtr = it;
- break;
- }
- it = it->next;
- }
- }
- return client->clientPtr;
-}
-
-/* PickKeyboard will pick an appropriate keyboard for the given client by
- * searching the list of devices for the keyboard device that is paired with
- * the client's pointer.
- */
-DeviceIntPtr
-PickKeyboard(ClientPtr client)
-{
- DeviceIntPtr ptr = PickPointer(client);
- DeviceIntPtr kbd = GetMaster(ptr, MASTER_KEYBOARD);
-
- if (!kbd)
- {
- ErrorF("[dix] ClientPointer not paired with a keyboard. This "
- "is a bug.\n");
- }
-
- return kbd;
-}
-
-/* A client that has one or more core grabs does not get core events from
- * devices it does not have a grab on. Legacy applications behave bad
- * otherwise because they are not used to it and the events interfere.
- * Only applies for core events.
- *
- * Return true if a core event from the device would interfere and should not
- * be delivered.
- */
-Bool
-IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent* event)
-{
- DeviceIntPtr it = inputInfo.devices;
-
- switch(event->u.u.type)
- {
- case KeyPress:
- case KeyRelease:
- case ButtonPress:
- case ButtonRelease:
- case MotionNotify:
- case EnterNotify:
- case LeaveNotify:
- break;
- default:
- return FALSE;
- }
-
- if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
- return FALSE;
-
- while(it)
- {
- if (it != dev)
- {
- if (it->deviceGrab.grab && SameClient(it->deviceGrab.grab, client)
- && !it->deviceGrab.fromPassiveGrab)
- {
- if ((IsPointerDevice(it) && IsPointerDevice(dev)) ||
- (IsKeyboardDevice(it) && IsKeyboardDevice(dev)))
- return TRUE;
- }
- }
- it = it->next;
- }
-
- return FALSE;
-}
-
+/************************************************************
+
+Copyright 1987, 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.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+********************************************************/
+
+/* The panoramix components contained the following notice */
+/*****************************************************************
+
+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+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
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+
+******************************************************************/
+
+/*
+ * Copyright © 2003-2005 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+/** @file events.c
+ * This file handles event delivery and a big part of the server-side protocol
+ * handling (the parts for input devices).
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include "misc.h"
+#include "resource.h"
+#include <X11/Xproto.h>
+#include "windowstr.h"
+#include "inputstr.h"
+#include "scrnintstr.h"
+#include "cursorstr.h"
+
+#include "dixstruct.h"
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+#include "globals.h"
+
+#include <X11/extensions/XKBproto.h>
+#include "xkbsrv.h"
+#include "xace.h"
+
+#ifdef XSERVER_DTRACE
+#include <sys/types.h>
+typedef const char *string;
+#include "Xserver-dtrace.h"
+#endif
+
+#include <X11/extensions/XIproto.h>
+#include <X11/extensions/XI2proto.h>
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XI2.h>
+#include "exglobals.h"
+#include "exevents.h"
+#include "exglobals.h"
+#include "extnsionst.h"
+
+#include "dixevents.h"
+#include "dixgrabs.h"
+#include "dispatch.h"
+
+#include <X11/extensions/ge.h>
+#include "geext.h"
+#include "geint.h"
+
+#include "eventstr.h"
+#include "enterleave.h"
+#include "eventconvert.h"
+
+/* Extension events type numbering starts at EXTENSION_EVENT_BASE. */
+#define NoSuchEvent 0x80000000 /* so doesn't match NoEventMask */
+#define StructureAndSubMask ( StructureNotifyMask | SubstructureNotifyMask )
+#define AllButtonsMask ( \
+ Button1Mask | Button2Mask | Button3Mask | Button4Mask | Button5Mask )
+#define MotionMask ( \
+ PointerMotionMask | Button1MotionMask | \
+ Button2MotionMask | Button3MotionMask | Button4MotionMask | \
+ Button5MotionMask | ButtonMotionMask )
+#define PropagateMask ( \
+ KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask | \
+ MotionMask )
+#define PointerGrabMask ( \
+ ButtonPressMask | ButtonReleaseMask | \
+ EnterWindowMask | LeaveWindowMask | \
+ PointerMotionHintMask | KeymapStateMask | \
+ MotionMask )
+#define AllModifiersMask ( \
+ ShiftMask | LockMask | ControlMask | Mod1Mask | Mod2Mask | \
+ Mod3Mask | Mod4Mask | Mod5Mask )
+#define LastEventMask OwnerGrabButtonMask
+#define AllEventMasks (LastEventMask|(LastEventMask-1))
+
+
+#define CORE_EVENT(event) \
+ (!((event)->u.u.type & EXTENSION_EVENT_BASE) && \
+ (event)->u.u.type != GenericEvent)
+#define XI2_EVENT(event) \
+ (((event)->u.u.type == GenericEvent) && \
+ ((xGenericEvent*)(event))->extension == IReqCode)
+
+/**
+ * Used to indicate a implicit passive grab created by a ButtonPress event.
+ * See DeliverEventsToWindow().
+ */
+#define ImplicitGrabMask (1 << 7)
+
+#define WID(w) ((w) ? ((w)->drawable.id) : 0)
+
+#define XE_KBPTR (xE->u.keyButtonPointer)
+
+
+#define rClient(obj) (clients[CLIENT_ID((obj)->resource)])
+
+CallbackListPtr EventCallback;
+CallbackListPtr DeviceEventCallback;
+
+#define DNPMCOUNT 8
+
+Mask DontPropagateMasks[DNPMCOUNT];
+static int DontPropagateRefCnts[DNPMCOUNT];
+
+static void CheckVirtualMotion( DeviceIntPtr pDev, QdEventPtr qe, WindowPtr pWin);
+static void CheckPhysLimits(DeviceIntPtr pDev,
+ CursorPtr cursor,
+ Bool generateEvents,
+ Bool confineToScreen,
+ ScreenPtr pScreen);
+static Bool CheckPassiveGrabsOnWindow(WindowPtr pWin,
+ DeviceIntPtr device,
+ DeviceEvent *event,
+ BOOL checkCore);
+
+/** Key repeat hack. Do not use but in TryClientEvents */
+extern BOOL EventIsKeyRepeat(xEvent *event);
+
+/**
+ * Main input device struct.
+ * inputInfo.pointer
+ * is the core pointer. Referred to as "virtual core pointer", "VCP",
+ * "core pointer" or inputInfo.pointer. The VCP is the first master
+ * pointer device and cannot be deleted.
+ *
+ * inputInfo.keyboard
+ * is the core keyboard ("virtual core keyboard", "VCK", "core keyboard").
+ * See inputInfo.pointer.
+ *
+ * inputInfo.devices
+ * linked list containing all devices including VCP and VCK.
+ *
+ * inputInfo.off_devices
+ * Devices that have not been initialized and are thus turned off.
+ *
+ * inputInfo.numDevices
+ * Total number of devices.
+ *
+ * inputInfo.all_devices
+ * Virtual device used for XIAllDevices passive grabs. This device is
+ * not part of the inputInfo.devices list and mostly unset except for
+ * the deviceid. It exists because passivegrabs need a valid device
+ * reference.
+ *
+ * inputInfo.all_master_devices
+ * Virtual device used for XIAllMasterDevices passive grabs. This device
+ * is not part of the inputInfo.devices list and mostly unset except for
+ * the deviceid. It exists because passivegrabs need a valid device
+ * reference.
+ */
+InputInfo inputInfo;
+
+/**
+ * syncEvents is the global structure for queued events.
+ *
+ * Devices can be frozen through GrabModeSync pointer grabs. If this is the
+ * case, events from these devices are added to "pending" instead of being
+ * processed normally. When the device is unfrozen, events in "pending" are
+ * replayed and processed as if they would come from the device directly.
+ */
+static struct {
+ QdEventPtr pending, /**< list of queued events */
+ *pendtail; /**< last event in list */
+ /** The device to replay events for. Only set in AllowEvents(), in which
+ * case it is set to the device specified in the request. */
+ DeviceIntPtr replayDev; /* kludgy rock to put flag for */
+
+ /**
+ * The window the events are supposed to be replayed on.
+ * This window may be set to the grab's window (but only when
+ * Replay{Pointer|Keyboard} is given in the XAllowEvents()
+ * request. */
+ WindowPtr replayWin; /* ComputeFreezes */
+ /**
+ * Flag to indicate whether we're in the process of
+ * replaying events. Only set in ComputeFreezes(). */
+ Bool playingEvents;
+ TimeStamp time;
+} syncEvents;
+
+/**
+ * The root window the given device is currently on.
+ */
+#define RootWindow(dev) dev->spriteInfo->sprite->spriteTrace[0]
+
+static xEvent* swapEvent = NULL;
+static int swapEventLen = 0;
+
+void
+NotImplemented(xEvent *from, xEvent *to)
+{
+ FatalError("Not implemented");
+}
+
+/**
+ * Convert the given event type from an XI event to a core event.
+ * @param[in] The XI 1.x event type.
+ * @return The matching core event type or 0 if there is none.
+ */
+int
+XItoCoreType(int xitype)
+{
+ int coretype = 0;
+ if (xitype == DeviceMotionNotify)
+ coretype = MotionNotify;
+ else if (xitype == DeviceButtonPress)
+ coretype = ButtonPress;
+ else if (xitype == DeviceButtonRelease)
+ coretype = ButtonRelease;
+ else if (xitype == DeviceKeyPress)
+ coretype = KeyPress;
+ else if (xitype == DeviceKeyRelease)
+ coretype = KeyRelease;
+
+ return coretype;
+}
+
+/**
+ * @return true if the device owns a cursor, false if device shares a cursor
+ * sprite with another device.
+ */
+Bool
+DevHasCursor(DeviceIntPtr pDev)
+{
+ return pDev->spriteInfo->spriteOwner;
+}
+
+/*
+ * @return true if a device is a pointer, check is the same as used by XI to
+ * fill the 'use' field.
+ */
+Bool
+IsPointerDevice(DeviceIntPtr dev)
+{
+ return (dev->type == MASTER_POINTER) ||
+ (dev->valuator && dev->button) ||
+ (dev->valuator && !dev->key);
+}
+
+/*
+ * @return true if a device is a keyboard, check is the same as used by XI to
+ * fill the 'use' field.
+ *
+ * Some pointer devices have keys as well (e.g. multimedia keys). Try to not
+ * count them as keyboard devices.
+ */
+Bool
+IsKeyboardDevice(DeviceIntPtr dev)
+{
+ return (dev->type == MASTER_KEYBOARD) ||
+ ((dev->key && dev->kbdfeed) && !IsPointerDevice(dev));
+}
+
+Bool
+IsMaster(DeviceIntPtr dev)
+{
+ return (dev->type == MASTER_POINTER || dev->type == MASTER_KEYBOARD);
+}
+
+static WindowPtr XYToWindow(
+ DeviceIntPtr pDev,
+ int x,
+ int y
+);
+
+/**
+ * Max event opcode.
+ */
+extern int lastEvent;
+
+extern int DeviceMotionNotify;
+
+#define CantBeFiltered NoEventMask
+/**
+ * Event masks for each event type.
+ *
+ * One set of filters for each device, but only the first layer
+ * is initialized. The rest is memcpy'd in InitEvents.
+ *
+ * Filters are used whether a given event may be delivered to a client,
+ * usually in the form of if (window-event-mask & filter); then deliver event.
+ *
+ * One notable filter is for PointerMotion/DevicePointerMotion events. Each
+ * time a button is pressed, the filter is modified to also contain the
+ * matching ButtonXMotion mask.
+ */
+static Mask filters[MAXDEVICES][128] = {
+{
+ NoSuchEvent, /* 0 */
+ NoSuchEvent, /* 1 */
+ KeyPressMask, /* KeyPress */
+ KeyReleaseMask, /* KeyRelease */
+ ButtonPressMask, /* ButtonPress */
+ ButtonReleaseMask, /* ButtonRelease */
+ PointerMotionMask, /* MotionNotify (initial state) */
+ EnterWindowMask, /* EnterNotify */
+ LeaveWindowMask, /* LeaveNotify */
+ FocusChangeMask, /* FocusIn */
+ FocusChangeMask, /* FocusOut */
+ KeymapStateMask, /* KeymapNotify */
+ ExposureMask, /* Expose */
+ CantBeFiltered, /* GraphicsExpose */
+ CantBeFiltered, /* NoExpose */
+ VisibilityChangeMask, /* VisibilityNotify */
+ SubstructureNotifyMask, /* CreateNotify */
+ StructureAndSubMask, /* DestroyNotify */
+ StructureAndSubMask, /* UnmapNotify */
+ StructureAndSubMask, /* MapNotify */
+ SubstructureRedirectMask, /* MapRequest */
+ StructureAndSubMask, /* ReparentNotify */
+ StructureAndSubMask, /* ConfigureNotify */
+ SubstructureRedirectMask, /* ConfigureRequest */
+ StructureAndSubMask, /* GravityNotify */
+ ResizeRedirectMask, /* ResizeRequest */
+ StructureAndSubMask, /* CirculateNotify */
+ SubstructureRedirectMask, /* CirculateRequest */
+ PropertyChangeMask, /* PropertyNotify */
+ CantBeFiltered, /* SelectionClear */
+ CantBeFiltered, /* SelectionRequest */
+ CantBeFiltered, /* SelectionNotify */
+ ColormapChangeMask, /* ColormapNotify */
+ CantBeFiltered, /* ClientMessage */
+ CantBeFiltered /* MappingNotify */
+}};
+
+/**
+ * For the given event, return the matching event filter. This filter may then
+ * be AND'ed with the selected event mask.
+ *
+ * For XI2 events, the returned filter is simply the byte containing the event
+ * mask we're interested in. E.g. for a mask of (1 << 13), this would be
+ * byte[1].
+ *
+ * @param[in] dev The device the event belongs to, may be NULL.
+ * @param[in] event The event to get the filter for. Only the type of the
+ * event matters, or the extension + evtype for GenericEvents.
+ * @return The filter mask for the given event.
+ *
+ * @see GetEventMask
+ */
+Mask
+GetEventFilter(DeviceIntPtr dev, xEvent *event)
+{
+ if (event->u.u.type != GenericEvent)
+ return filters[dev ? dev->id : 0][event->u.u.type];
+ else if (XI2_EVENT(event))
+ return (1 << (((xXIDeviceEvent*)event)->evtype % 8));
+ ErrorF("[dix] Unknown device type %d. No filter\n", event->u.u.type);
+ return 0;
+}
+
+/**
+ * Return the windows complete XI2 mask for the given XI2 event type.
+ */
+Mask
+GetWindowXI2Mask(DeviceIntPtr dev, WindowPtr win, xEvent* ev)
+{
+ OtherInputMasks *inputMasks = wOtherInputMasks(win);
+ int filter;
+ int evtype;
+
+ if (!inputMasks || !XI2_EVENT(ev))
+ return 0;
+
+ evtype = ((xGenericEvent*)ev)->evtype;
+ filter = GetEventFilter(dev, ev);
+
+ return ((inputMasks->xi2mask[dev->id][evtype/8] & filter) ||
+ inputMasks->xi2mask[XIAllDevices][evtype/8] ||
+ (inputMasks->xi2mask[XIAllMasterDevices][evtype/8] && IsMaster(dev)));
+}
+
+static Mask
+GetEventMask(DeviceIntPtr dev, xEvent *event, InputClients* other)
+{
+ /* XI2 filters are only ever 8 bit, so let's return a 8 bit mask */
+ if (XI2_EVENT(event))
+ {
+ int byte = ((xGenericEvent*)event)->evtype / 8;
+ return (other->xi2mask[dev->id][byte] |
+ other->xi2mask[XIAllDevices][byte] |
+ (IsMaster(dev)? other->xi2mask[XIAllMasterDevices][byte] : 0));
+ } else if (CORE_EVENT(event))
+ return other->mask[XIAllDevices];
+ else
+ return other->mask[dev->id];
+}
+
+
+static CARD8 criticalEvents[32] =
+{
+ 0x7c, 0x30, 0x40 /* key, button, expose, and configure events */
+};
+
+static void
+SyntheticMotion(DeviceIntPtr dev, int x, int y) {
+ int screenno = 0;
+
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ screenno = dev->spriteInfo->sprite->screen->myNum;
+#endif
+ PostSyntheticMotion(dev, x, y, screenno,
+ (syncEvents.playingEvents) ? syncEvents.time.milliseconds : currentTime.milliseconds);
+
+}
+
+#ifdef PANORAMIX
+static void PostNewCursor(DeviceIntPtr pDev);
+
+static Bool
+XineramaSetCursorPosition(
+ DeviceIntPtr pDev,
+ int x,
+ int y,
+ Bool generateEvent
+){
+ ScreenPtr pScreen;
+ BoxRec box;
+ int i;
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ /* x,y are in Screen 0 coordinates. We need to decide what Screen
+ to send the message too and what the coordinates relative to
+ that screen are. */
+
+ pScreen = pSprite->screen;
+ x += panoramiXdataPtr[0].x;
+ y += panoramiXdataPtr[0].y;
+
+ if(!POINT_IN_REGION(pScreen, &XineramaScreenRegions[pScreen->myNum],
+ x, y, &box))
+ {
+ FOR_NSCREENS(i)
+ {
+ if(i == pScreen->myNum)
+ continue;
+ if(POINT_IN_REGION(pScreen, &XineramaScreenRegions[i], x, y, &box))
+ {
+ pScreen = screenInfo.screens[i];
+ break;
+ }
+ }
+ }
+
+ pSprite->screen = pScreen;
+ pSprite->hotPhys.x = x - panoramiXdataPtr[0].x;
+ pSprite->hotPhys.y = y - panoramiXdataPtr[0].y;
+ x -= panoramiXdataPtr[pScreen->myNum].x;
+ y -= panoramiXdataPtr[pScreen->myNum].y;
+
+ return (*pScreen->SetCursorPosition)(pDev, pScreen, x, y, generateEvent);
+}
+
+
+static void
+XineramaConstrainCursor(DeviceIntPtr pDev)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+ ScreenPtr pScreen;
+ BoxRec newBox;
+
+ pScreen = pSprite->screen;
+ newBox = pSprite->physLimits;
+
+ /* Translate the constraining box to the screen
+ the sprite is actually on */
+ newBox.x1 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
+ newBox.x2 += panoramiXdataPtr[0].x - panoramiXdataPtr[pScreen->myNum].x;
+ newBox.y1 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
+ newBox.y2 += panoramiXdataPtr[0].y - panoramiXdataPtr[pScreen->myNum].y;
+
+ (* pScreen->ConstrainCursor)(pDev, pScreen, &newBox);
+}
+
+
+static Bool
+XineramaSetWindowPntrs(DeviceIntPtr pDev, WindowPtr pWin)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ if(pWin == WindowTable[0]) {
+ memcpy(pSprite->windows, WindowTable,
+ PanoramiXNumScreens*sizeof(WindowPtr));
+ } else {
+ PanoramiXRes *win;
+ int rc, i;
+
+ rc = dixLookupResourceByType((pointer *)&win, pWin->drawable.id,
+ XRT_WINDOW, serverClient, DixReadAccess);
+ if (rc != Success)
+ return FALSE;
+
+ for(i = 0; i < PanoramiXNumScreens; i++) {
+ rc = dixLookupWindow(pSprite->windows + i, win->info[i].id,
+ serverClient, DixReadAccess);
+ if (rc != Success) /* window is being unmapped */
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+static void
+XineramaConfineCursorToWindow(DeviceIntPtr pDev,
+ WindowPtr pWin,
+ Bool generateEvents)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ int x, y, off_x, off_y, i;
+
+ if(!XineramaSetWindowPntrs(pDev, pWin))
+ return;
+
+ i = PanoramiXNumScreens - 1;
+
+ REGION_COPY(pSprite->screen, &pSprite->Reg1,
+ &pSprite->windows[i]->borderSize);
+ off_x = panoramiXdataPtr[i].x;
+ off_y = panoramiXdataPtr[i].y;
+
+ while(i--) {
+ x = off_x - panoramiXdataPtr[i].x;
+ y = off_y - panoramiXdataPtr[i].y;
+
+ if(x || y)
+ REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, x, y);
+
+ REGION_UNION(pSprite->screen, &pSprite->Reg1, &pSprite->Reg1,
+ &pSprite->windows[i]->borderSize);
+
+ off_x = panoramiXdataPtr[i].x;
+ off_y = panoramiXdataPtr[i].y;
+ }
+
+ pSprite->hotLimits = *REGION_EXTENTS(pSprite->screen, &pSprite->Reg1);
+
+ if(REGION_NUM_RECTS(&pSprite->Reg1) > 1)
+ pSprite->hotShape = &pSprite->Reg1;
+ else
+ pSprite->hotShape = NullRegion;
+
+ pSprite->confined = FALSE;
+ pSprite->confineWin = (pWin == WindowTable[0]) ? NullWindow : pWin;
+
+ CheckPhysLimits(pDev, pSprite->current, generateEvents, FALSE, NULL);
+}
+
+#endif /* PANORAMIX */
+
+/**
+ * Modifies the filter for the given protocol event type to the given masks.
+ *
+ * There's only two callers: UpdateDeviceState() and XI's SetMaskForExtEvent().
+ * The latter initialises masks for the matching XI events, it's a once-off
+ * setting.
+ * UDS however changes the mask for MotionNotify and DeviceMotionNotify each
+ * time a button is pressed to include the matching ButtonXMotion mask in the
+ * filter.
+ *
+ * @param[in] deviceid The device to modify the filter for.
+ * @param[in] mask The new filter mask.
+ * @param[in] event Protocol event type.
+ */
+void
+SetMaskForEvent(int deviceid, Mask mask, int event)
+{
+ if (deviceid < 0 || deviceid >= MAXDEVICES)
+ FatalError("SetMaskForEvent: bogus device id");
+ filters[deviceid][event] = mask;
+}
+
+void
+SetCriticalEvent(int event)
+{
+ if (event >= 128)
+ FatalError("SetCriticalEvent: bogus event number");
+ criticalEvents[event >> 3] |= 1 << (event & 7);
+}
+
+void
+ConfineToShape(DeviceIntPtr pDev, RegionPtr shape, int *px, int *py)
+{
+ BoxRec box;
+ int x = *px, y = *py;
+ int incx = 1, incy = 1;
+ SpritePtr pSprite;
+
+ pSprite = pDev->spriteInfo->sprite;
+ if (POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box))
+ return;
+ box = *REGION_EXTENTS(pSprite->hot.pScreen, shape);
+ /* this is rather crude */
+ do {
+ x += incx;
+ if (x >= box.x2)
+ {
+ incx = -1;
+ x = *px - 1;
+ }
+ else if (x < box.x1)
+ {
+ incx = 1;
+ x = *px;
+ y += incy;
+ if (y >= box.y2)
+ {
+ incy = -1;
+ y = *py - 1;
+ }
+ else if (y < box.y1)
+ return; /* should never get here! */
+ }
+ } while (!POINT_IN_REGION(pSprite->hot.pScreen, shape, x, y, &box));
+ *px = x;
+ *py = y;
+}
+
+static void
+CheckPhysLimits(
+ DeviceIntPtr pDev,
+ CursorPtr cursor,
+ Bool generateEvents,
+ Bool confineToScreen, /* unused if PanoramiX on */
+ ScreenPtr pScreen) /* unused if PanoramiX on */
+{
+ HotSpot new;
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ if (!cursor)
+ return;
+ new = pSprite->hotPhys;
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ /* I don't care what the DDX has to say about it */
+ pSprite->physLimits = pSprite->hotLimits;
+ else
+#endif
+ {
+ if (pScreen)
+ new.pScreen = pScreen;
+ else
+ pScreen = new.pScreen;
+ (*pScreen->CursorLimits) (pDev, pScreen, cursor, &pSprite->hotLimits,
+ &pSprite->physLimits);
+ pSprite->confined = confineToScreen;
+ (* pScreen->ConstrainCursor)(pDev, pScreen, &pSprite->physLimits);
+ }
+
+ /* constrain the pointer to those limits */
+ if (new.x < pSprite->physLimits.x1)
+ new.x = pSprite->physLimits.x1;
+ else
+ if (new.x >= pSprite->physLimits.x2)
+ new.x = pSprite->physLimits.x2 - 1;
+ if (new.y < pSprite->physLimits.y1)
+ new.y = pSprite->physLimits.y1;
+ else
+ if (new.y >= pSprite->physLimits.y2)
+ new.y = pSprite->physLimits.y2 - 1;
+ if (pSprite->hotShape)
+ ConfineToShape(pDev, pSprite->hotShape, &new.x, &new.y);
+ if ((pScreen != pSprite->hotPhys.pScreen) ||
+ (new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y))
+ {
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ {
+ if (pScreen && ((new.x != pSprite->hotPhys.x) || (new.y != pSprite->hotPhys.y)))
+ XineramaSetCursorPosition (pDev, new.x, new.y, generateEvents);
+ }
+ else
+#endif
+ {
+ if (pScreen != pSprite->hotPhys.pScreen)
+ pSprite->hotPhys = new;
+ (*pScreen->SetCursorPosition)
+ (pDev, pScreen, new.x, new.y, generateEvents);
+ }
+ if (!generateEvents)
+ SyntheticMotion(pDev, new.x, new.y);
+ }
+
+#ifdef PANORAMIX
+ /* Tell DDX what the limits are */
+ if (!noPanoramiXExtension)
+ XineramaConstrainCursor(pDev);
+#endif
+}
+
+static void
+CheckVirtualMotion(
+ DeviceIntPtr pDev,
+ QdEventPtr qe,
+ WindowPtr pWin)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+ RegionPtr reg = NULL;
+ DeviceEvent *ev = NULL;
+
+ if (qe)
+ {
+ ev = &qe->event->device_event;
+ switch(ev->type)
+ {
+ case ET_Motion:
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_KeyPress:
+ case ET_KeyRelease:
+ case ET_ProximityIn:
+ case ET_ProximityOut:
+ pSprite->hot.pScreen = qe->pScreen;
+ pSprite->hot.x = ev->root_x;
+ pSprite->hot.y = ev->root_y;
+ pWin = pDev->deviceGrab.grab ? pDev->deviceGrab.grab->confineTo : NullWindow;
+ break;
+ default:
+ break;
+ }
+ }
+ if (pWin)
+ {
+ BoxRec lims;
+
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension) {
+ int x, y, off_x, off_y, i;
+
+ if(!XineramaSetWindowPntrs(pDev, pWin))
+ return;
+
+ i = PanoramiXNumScreens - 1;
+
+ REGION_COPY(pSprite->screen, &pSprite->Reg2,
+ &pSprite->windows[i]->borderSize);
+ off_x = panoramiXdataPtr[i].x;
+ off_y = panoramiXdataPtr[i].y;
+
+ while(i--) {
+ x = off_x - panoramiXdataPtr[i].x;
+ y = off_y - panoramiXdataPtr[i].y;
+
+ if(x || y)
+ REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, x, y);
+
+ REGION_UNION(pSprite->screen, &pSprite->Reg2, &pSprite->Reg2,
+ &pSprite->windows[i]->borderSize);
+
+ off_x = panoramiXdataPtr[i].x;
+ off_y = panoramiXdataPtr[i].y;
+ }
+ } else
+#endif
+ {
+ if (pSprite->hot.pScreen != pWin->drawable.pScreen)
+ {
+ pSprite->hot.pScreen = pWin->drawable.pScreen;
+ pSprite->hot.x = pSprite->hot.y = 0;
+ }
+ }
+
+ lims = *REGION_EXTENTS(pWin->drawable.pScreen, &pWin->borderSize);
+ if (pSprite->hot.x < lims.x1)
+ pSprite->hot.x = lims.x1;
+ else if (pSprite->hot.x >= lims.x2)
+ pSprite->hot.x = lims.x2 - 1;
+ if (pSprite->hot.y < lims.y1)
+ pSprite->hot.y = lims.y1;
+ else if (pSprite->hot.y >= lims.y2)
+ pSprite->hot.y = lims.y2 - 1;
+
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ {
+ if (REGION_NUM_RECTS(&pSprite->Reg2) > 1)
+ reg = &pSprite->Reg2;
+
+ } else
+#endif
+ {
+ if (wBoundingShape(pWin))
+ reg = &pWin->borderSize;
+ }
+
+ if (reg)
+ ConfineToShape(pDev, reg, &pSprite->hot.x, &pSprite->hot.y);
+
+ if (qe && ev)
+ {
+ qe->pScreen = pSprite->hot.pScreen;
+ ev->root_x = pSprite->hot.x;
+ ev->root_y = pSprite->hot.y;
+ }
+ }
+#ifdef PANORAMIX
+ if (noPanoramiXExtension) /* No typo. Only set the root win if disabled */
+#endif
+ RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
+}
+
+static void
+ConfineCursorToWindow(DeviceIntPtr pDev, WindowPtr pWin, Bool generateEvents, Bool confineToScreen)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ if (syncEvents.playingEvents)
+ {
+ CheckVirtualMotion(pDev, (QdEventPtr)NULL, pWin);
+ SyntheticMotion(pDev, pSprite->hot.x, pSprite->hot.y);
+ }
+ else
+ {
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ XineramaConfineCursorToWindow(pDev, pWin, generateEvents);
+ return;
+ }
+#endif
+ pSprite->hotLimits = *REGION_EXTENTS( pScreen, &pWin->borderSize);
+ pSprite->hotShape = wBoundingShape(pWin) ? &pWin->borderSize
+ : NullRegion;
+ CheckPhysLimits(pDev, pSprite->current, generateEvents,
+ confineToScreen, pScreen);
+ }
+}
+
+Bool
+PointerConfinedToScreen(DeviceIntPtr pDev)
+{
+ return pDev->spriteInfo->sprite->confined;
+}
+
+/**
+ * Update the sprite cursor to the given cursor.
+ *
+ * ChangeToCursor() will display the new cursor and free the old cursor (if
+ * applicable). If the provided cursor is already the updated cursor, nothing
+ * happens.
+ */
+static void
+ChangeToCursor(DeviceIntPtr pDev, CursorPtr cursor)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+ ScreenPtr pScreen;
+
+ if (cursor != pSprite->current)
+ {
+ if ((pSprite->current->bits->xhot != cursor->bits->xhot) ||
+ (pSprite->current->bits->yhot != cursor->bits->yhot))
+ CheckPhysLimits(pDev, cursor, FALSE, pSprite->confined,
+ (ScreenPtr)NULL);
+#ifdef PANORAMIX
+ /* XXX: is this really necessary?? (whot) */
+ if (!noPanoramiXExtension)
+ pScreen = pSprite->screen;
+ else
+#endif
+ pScreen = pSprite->hotPhys.pScreen;
+
+ (*pScreen->DisplayCursor)(pDev, pScreen, cursor);
+ FreeCursor(pSprite->current, (Cursor)0);
+ pSprite->current = cursor;
+ pSprite->current->refcnt++;
+ }
+}
+
+/**
+ * @returns true if b is a descendent of a
+ */
+Bool
+IsParent(WindowPtr a, WindowPtr b)
+{
+ for (b = b->parent; b; b = b->parent)
+ if (b == a) return TRUE;
+ return FALSE;
+}
+
+/**
+ * Update the cursor displayed on the screen.
+ *
+ * Called whenever a cursor may have changed shape or position.
+ */
+static void
+PostNewCursor(DeviceIntPtr pDev)
+{
+ WindowPtr win;
+ GrabPtr grab = pDev->deviceGrab.grab;
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+ CursorPtr pCursor;
+
+ if (syncEvents.playingEvents)
+ return;
+ if (grab)
+ {
+ if (grab->cursor)
+ {
+ ChangeToCursor(pDev, grab->cursor);
+ return;
+ }
+ if (IsParent(grab->window, pSprite->win))
+ win = pSprite->win;
+ else
+ win = grab->window;
+ }
+ else
+ win = pSprite->win;
+ for (; win; win = win->parent)
+ {
+ if (win->optional)
+ {
+ pCursor = WindowGetDeviceCursor(win, pDev);
+ if (!pCursor && win->optional->cursor != NullCursor)
+ pCursor = win->optional->cursor;
+ if (pCursor)
+ {
+ ChangeToCursor(pDev, pCursor);
+ return;
+ }
+ }
+ }
+}
+
+
+/**
+ * @param dev device which you want to know its current root window
+ * @return root window where dev's sprite is located
+ */
+WindowPtr
+GetCurrentRootWindow(DeviceIntPtr dev)
+{
+ return RootWindow(dev);
+}
+
+/**
+ * @return window underneath the cursor sprite.
+ */
+WindowPtr
+GetSpriteWindow(DeviceIntPtr pDev)
+{
+ return pDev->spriteInfo->sprite->win;
+}
+
+/**
+ * @return current sprite cursor.
+ */
+CursorPtr
+GetSpriteCursor(DeviceIntPtr pDev)
+{
+ return pDev->spriteInfo->sprite->current;
+}
+
+/**
+ * Set x/y current sprite position in screen coordinates.
+ */
+void
+GetSpritePosition(DeviceIntPtr pDev, int *px, int *py)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+ *px = pSprite->hotPhys.x;
+ *py = pSprite->hotPhys.y;
+}
+
+#ifdef PANORAMIX
+int
+XineramaGetCursorScreen(DeviceIntPtr pDev)
+{
+ if(!noPanoramiXExtension) {
+ return pDev->spriteInfo->sprite->screen->myNum;
+ } else {
+ return 0;
+ }
+}
+#endif /* PANORAMIX */
+
+#define TIMESLOP (5 * 60 * 1000) /* 5 minutes */
+
+static void
+MonthChangedOrBadTime(InternalEvent *ev)
+{
+ /* If the ddx/OS is careless about not processing timestamped events from
+ * different sources in sorted order, then it's possible for time to go
+ * backwards when it should not. Here we ensure a decent time.
+ */
+ if ((currentTime.milliseconds - ev->any.time) > TIMESLOP)
+ currentTime.months++;
+ else
+ ev->any.time = currentTime.milliseconds;
+}
+
+static void
+NoticeTime(InternalEvent *ev)
+{
+ if (ev->any.time < currentTime.milliseconds)
+ MonthChangedOrBadTime(ev);
+ currentTime.milliseconds = ev->any.time;
+ lastDeviceEventTime = currentTime;
+}
+
+void
+NoticeEventTime(InternalEvent *ev)
+{
+ if (!syncEvents.playingEvents)
+ NoticeTime(ev);
+}
+
+/**************************************************************************
+ * The following procedures deal with synchronous events *
+ **************************************************************************/
+
+/**
+ * EnqueueEvent is a device's processInputProc if a device is frozen.
+ * Instead of delivering the events to the client, the event is tacked onto a
+ * linked list for later delivery.
+ */
+void
+EnqueueEvent(InternalEvent *ev, DeviceIntPtr device)
+{
+ QdEventPtr tail = *syncEvents.pendtail;
+ QdEventPtr qe;
+ SpritePtr pSprite = device->spriteInfo->sprite;
+ int eventlen;
+ DeviceEvent *event = &ev->device_event;
+
+ NoticeTime((InternalEvent*)event);
+
+ /* Fix for key repeating bug. */
+ if (device->key != NULL && device->key->xkbInfo != NULL &&
+ event->type == ET_KeyRelease)
+ AccessXCancelRepeatKey(device->key->xkbInfo, event->detail.key);
+
+ if (DeviceEventCallback)
+ {
+ DeviceEventInfoRec eventinfo;
+
+ /* The RECORD spec says that the root window field of motion events
+ * must be valid. At this point, it hasn't been filled in yet, so
+ * we do it here. The long expression below is necessary to get
+ * the current root window; the apparently reasonable alternative
+ * GetCurrentRootWindow()->drawable.id doesn't give you the right
+ * answer on the first motion event after a screen change because
+ * the data that GetCurrentRootWindow relies on hasn't been
+ * updated yet.
+ */
+ if (ev->any.type == ET_Motion)
+ ev->device_event.root = WindowTable[pSprite->hotPhys.pScreen->myNum]->drawable.id;
+
+ eventinfo.event = ev;
+ eventinfo.device = device;
+ CallCallbacks(&DeviceEventCallback, (pointer)&eventinfo);
+ }
+
+ if (event->type == ET_Motion)
+ {
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ event->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
+ panoramiXdataPtr[0].x;
+ event->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
+ panoramiXdataPtr[0].y;
+ }
+#endif
+ pSprite->hotPhys.x = event->root_x;
+ pSprite->hotPhys.y = event->root_y;
+ /* do motion compression, but not if from different devices */
+ if (tail &&
+ (tail->event->any.type == ET_Motion) &&
+ (tail->device == device) &&
+ (tail->pScreen == pSprite->hotPhys.pScreen))
+ {
+ DeviceEvent *tailev = &tail->event->device_event;
+ tailev->root_x = pSprite->hotPhys.x;
+ tailev->root_y = pSprite->hotPhys.y;
+ tailev->time = event->time;
+ tail->months = currentTime.months;
+ return;
+ }
+ }
+
+ eventlen = event->length;
+
+ qe = xalloc(sizeof(QdEventRec) + eventlen);
+ if (!qe)
+ return;
+ qe->next = (QdEventPtr)NULL;
+ qe->device = device;
+ qe->pScreen = pSprite->hotPhys.pScreen;
+ qe->months = currentTime.months;
+ qe->event = (InternalEvent *)(qe + 1);
+ memcpy(qe->event, event, eventlen);
+ if (tail)
+ syncEvents.pendtail = &tail->next;
+ *syncEvents.pendtail = qe;
+}
+
+/**
+ * Run through the list of events queued up in syncEvents.
+ * For each event do:
+ * If the device for this event is not frozen anymore, take it and process it
+ * as usually.
+ * After that, check if there's any devices in the list that are not frozen.
+ * If there is none, we're done. If there is at least one device that is not
+ * frozen, then re-run from the beginning of the event queue.
+ */
+static void
+PlayReleasedEvents(void)
+{
+ QdEventPtr *prev, qe;
+ DeviceIntPtr dev;
+ DeviceIntPtr pDev;
+
+ prev = &syncEvents.pending;
+ while ( (qe = *prev) )
+ {
+ if (!qe->device->deviceGrab.sync.frozen)
+ {
+ *prev = qe->next;
+ pDev = qe->device;
+ if (*syncEvents.pendtail == *prev)
+ syncEvents.pendtail = prev;
+ if (qe->event->any.type == ET_Motion)
+ CheckVirtualMotion(pDev, qe, NullWindow);
+ syncEvents.time.months = qe->months;
+ syncEvents.time.milliseconds = qe->event->any.time;
+#ifdef PANORAMIX
+ /* Translate back to the sprite screen since processInputProc
+ will translate from sprite screen to screen 0 upon reentry
+ to the DIX layer */
+ if(!noPanoramiXExtension) {
+ DeviceEvent *ev = &qe->event->device_event;
+ switch(ev->type)
+ {
+ case ET_Motion:
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_KeyPress:
+ case ET_KeyRelease:
+ case ET_ProximityIn:
+ case ET_ProximityOut:
+ ev->root_x += panoramiXdataPtr[0].x -
+ panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].x;
+ ev->root_y += panoramiXdataPtr[0].y -
+ panoramiXdataPtr[pDev->spriteInfo->sprite->screen->myNum].y;
+ break;
+ default:
+ break;
+ }
+
+ }
+#endif
+ (*qe->device->public.processInputProc)(qe->event, qe->device);
+ xfree(qe);
+ for (dev = inputInfo.devices; dev && dev->deviceGrab.sync.frozen; dev = dev->next)
+ ;
+ if (!dev)
+ break;
+ /* Playing the event may have unfrozen another device. */
+ /* So to play it safe, restart at the head of the queue */
+ prev = &syncEvents.pending;
+ }
+ else
+ prev = &qe->next;
+ }
+}
+
+/**
+ * Freeze or thaw the given devices. The device's processing proc is
+ * switched to either the real processing proc (in case of thawing) or an
+ * enqueuing processing proc (usually EnqueueEvent()).
+ *
+ * @param dev The device to freeze/thaw
+ * @param frozen True to freeze or false to thaw.
+ */
+static void
+FreezeThaw(DeviceIntPtr dev, Bool frozen)
+{
+ dev->deviceGrab.sync.frozen = frozen;
+ if (frozen)
+ dev->public.processInputProc = dev->public.enqueueInputProc;
+ else
+ dev->public.processInputProc = dev->public.realInputProc;
+}
+
+/**
+ * Unfreeze devices and replay all events to the respective clients.
+ *
+ * ComputeFreezes takes the first event in the device's frozen event queue. It
+ * runs up the sprite tree (spriteTrace) and searches for the window to replay
+ * the events from. If it is found, it checks for passive grabs one down from
+ * the window or delivers the events.
+ */
+static void
+ComputeFreezes(void)
+{
+ DeviceIntPtr replayDev = syncEvents.replayDev;
+ int i;
+ WindowPtr w;
+ GrabPtr grab;
+ DeviceIntPtr dev;
+
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ FreezeThaw(dev, dev->deviceGrab.sync.other ||
+ (dev->deviceGrab.sync.state >= FROZEN));
+ if (syncEvents.playingEvents || (!replayDev && !syncEvents.pending))
+ return;
+ syncEvents.playingEvents = TRUE;
+ if (replayDev)
+ {
+ DeviceEvent* event = replayDev->deviceGrab.sync.event;
+
+ syncEvents.replayDev = (DeviceIntPtr)NULL;
+
+ w = XYToWindow(replayDev, event->root_x, event->root_y);
+ for (i = 0; i < replayDev->spriteInfo->sprite->spriteTraceGood; i++)
+ {
+ if (syncEvents.replayWin ==
+ replayDev->spriteInfo->sprite->spriteTrace[i])
+ {
+ if (!CheckDeviceGrabs(replayDev, event, i+1)) {
+ if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
+ DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
+ else
+ DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
+ NullWindow, replayDev);
+ }
+ goto playmore;
+ }
+ }
+ /* must not still be in the same stack */
+ if (replayDev->focus && !IsPointerEvent((InternalEvent*)event))
+ DeliverFocusedEvent(replayDev, (InternalEvent*)event, w);
+ else
+ DeliverDeviceEvents(w, (InternalEvent*)event, NullGrab,
+ NullWindow, replayDev);
+ }
+playmore:
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (!dev->deviceGrab.sync.frozen)
+ {
+ PlayReleasedEvents();
+ break;
+ }
+ }
+ syncEvents.playingEvents = FALSE;
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (DevHasCursor(dev))
+ {
+ /* the following may have been skipped during replay,
+ so do it now */
+ if ((grab = dev->deviceGrab.grab) && grab->confineTo)
+ {
+ if (grab->confineTo->drawable.pScreen !=
+ dev->spriteInfo->sprite->hotPhys.pScreen)
+ dev->spriteInfo->sprite->hotPhys.x =
+ dev->spriteInfo->sprite->hotPhys.y = 0;
+ ConfineCursorToWindow(dev, grab->confineTo, TRUE, TRUE);
+ }
+ else
+ ConfineCursorToWindow(dev,
+ WindowTable[dev->spriteInfo->sprite->hotPhys.pScreen->myNum],
+ TRUE, FALSE);
+ PostNewCursor(dev);
+ }
+ }
+}
+
+#ifdef RANDR
+void
+ScreenRestructured (ScreenPtr pScreen)
+{
+ GrabPtr grab;
+ DeviceIntPtr pDev;
+
+ for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
+ {
+ if (!DevHasCursor(pDev))
+ continue;
+
+ /* GrabDevice doesn't have a confineTo field, so we don't need to
+ * worry about it. */
+ if ((grab = pDev->deviceGrab.grab) && grab->confineTo)
+ {
+ if (grab->confineTo->drawable.pScreen
+ != pDev->spriteInfo->sprite->hotPhys.pScreen)
+ pDev->spriteInfo->sprite->hotPhys.x = pDev->spriteInfo->sprite->hotPhys.y = 0;
+ ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
+ }
+ else
+ ConfineCursorToWindow(pDev,
+ WindowTable[pDev->spriteInfo->sprite->hotPhys.pScreen->myNum],
+ TRUE, FALSE);
+ }
+}
+#endif
+
+static void
+CheckGrabForSyncs(DeviceIntPtr thisDev, Bool thisMode, Bool otherMode)
+{
+ GrabPtr grab = thisDev->deviceGrab.grab;
+ DeviceIntPtr dev;
+
+ if (thisMode == GrabModeSync)
+ thisDev->deviceGrab.sync.state = FROZEN_NO_EVENT;
+ else
+ { /* free both if same client owns both */
+ thisDev->deviceGrab.sync.state = THAWED;
+ if (thisDev->deviceGrab.sync.other &&
+ (CLIENT_BITS(thisDev->deviceGrab.sync.other->resource) ==
+ CLIENT_BITS(grab->resource)))
+ thisDev->deviceGrab.sync.other = NullGrab;
+ }
+
+ if (IsMaster(thisDev))
+ {
+ dev = GetPairedDevice(thisDev);
+ if (otherMode == GrabModeSync)
+ dev->deviceGrab.sync.other = grab;
+ else
+ { /* free both if same client owns both */
+ if (dev->deviceGrab.sync.other &&
+ (CLIENT_BITS(dev->deviceGrab.sync.other->resource) ==
+ CLIENT_BITS(grab->resource)))
+ dev->deviceGrab.sync.other = NullGrab;
+ }
+ }
+ ComputeFreezes();
+}
+
+/* Only ever used if a grab is called on an attached slave device. */
+static int GrabPrivateKeyIndex;
+static DevPrivateKey GrabPrivateKey = &GrabPrivateKeyIndex;
+
+/**
+ * Save the device's master device in the devPrivates. This needs to be done
+ * if a client directly grabs a slave device that is attached to a master. For
+ * the duration of the grab, the device is detached, ungrabbing re-attaches it
+ * though.
+ *
+ * We store the ID of the master device only in case the master disappears
+ * while the device has a grab.
+ */
+static void
+DetachFromMaster(DeviceIntPtr dev)
+{
+ intptr_t id;
+ if (!dev->u.master)
+ return;
+
+ id = dev->u.master->id;
+
+ dixSetPrivate(&dev->devPrivates, GrabPrivateKey, (void *)id);
+ AttachDevice(NULL, dev, NULL);
+}
+
+static void
+ReattachToOldMaster(DeviceIntPtr dev)
+{
+ int id;
+ void *p;
+ DeviceIntPtr master = NULL;
+
+ if (IsMaster(dev))
+ return;
+
+
+ p = dixLookupPrivate(&dev->devPrivates, GrabPrivateKey);
+ id = (intptr_t) p; /* silence gcc warnings */
+ dixLookupDevice(&master, id, serverClient, DixUseAccess);
+
+ if (master)
+ {
+ AttachDevice(serverClient, dev, master);
+ dixSetPrivate(&dev->devPrivates, GrabPrivateKey, NULL);
+ }
+}
+
+/**
+ * Activate a pointer grab on the given device. A pointer grab will cause all
+ * core pointer events of this device to be delivered to the grabbing client only.
+ * No other device will send core events to the grab client while the grab is
+ * on, but core events will be sent to other clients.
+ * Can cause the cursor to change if a grab cursor is set.
+ *
+ * Note that parameter autoGrab may be (True & ImplicitGrabMask) if the grab
+ * is an implicit grab caused by a ButtonPress event.
+ *
+ * @param mouse The device to grab.
+ * @param grab The grab structure, needs to be setup.
+ * @param autoGrab True if the grab was caused by a button down event and not
+ * explicitely by a client.
+ */
+void
+ActivatePointerGrab(DeviceIntPtr mouse, GrabPtr grab,
+ TimeStamp time, Bool autoGrab)
+{
+ GrabInfoPtr grabinfo = &mouse->deviceGrab;
+ WindowPtr oldWin = (grabinfo->grab) ?
+ grabinfo->grab->window
+ : mouse->spriteInfo->sprite->win;
+ Bool isPassive = autoGrab & ~ImplicitGrabMask;
+
+ /* slave devices need to float for the duration of the grab. */
+ if (grab->grabtype == GRABTYPE_XI2 &&
+ !(autoGrab & ImplicitGrabMask) && !IsMaster(mouse))
+ DetachFromMaster(mouse);
+
+ if (grab->confineTo)
+ {
+ if (grab->confineTo->drawable.pScreen
+ != mouse->spriteInfo->sprite->hotPhys.pScreen)
+ mouse->spriteInfo->sprite->hotPhys.x =
+ mouse->spriteInfo->sprite->hotPhys.y = 0;
+ ConfineCursorToWindow(mouse, grab->confineTo, FALSE, TRUE);
+ }
+ DoEnterLeaveEvents(mouse, mouse->id, oldWin, grab->window, NotifyGrab);
+ mouse->valuator->motionHintWindow = NullWindow;
+ if (syncEvents.playingEvents)
+ grabinfo->grabTime = syncEvents.time;
+ else
+ grabinfo->grabTime = time;
+ if (grab->cursor)
+ grab->cursor->refcnt++;
+ grabinfo->activeGrab = *grab;
+ grabinfo->grab = &grabinfo->activeGrab;
+ grabinfo->fromPassiveGrab = isPassive;
+ grabinfo->implicitGrab = autoGrab & ImplicitGrabMask;
+ PostNewCursor(mouse);
+ CheckGrabForSyncs(mouse,(Bool)grab->pointerMode, (Bool)grab->keyboardMode);
+}
+
+/**
+ * Delete grab on given device, update the sprite.
+ *
+ * Extension devices are set up for ActivateKeyboardGrab().
+ */
+void
+DeactivatePointerGrab(DeviceIntPtr mouse)
+{
+ GrabPtr grab = mouse->deviceGrab.grab;
+ DeviceIntPtr dev;
+ Bool wasImplicit = (mouse->deviceGrab.fromPassiveGrab &&
+ mouse->deviceGrab.implicitGrab);
+
+ mouse->valuator->motionHintWindow = NullWindow;
+ mouse->deviceGrab.grab = NullGrab;
+ mouse->deviceGrab.sync.state = NOT_GRABBED;
+ mouse->deviceGrab.fromPassiveGrab = FALSE;
+
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev->deviceGrab.sync.other == grab)
+ dev->deviceGrab.sync.other = NullGrab;
+ }
+ DoEnterLeaveEvents(mouse, mouse->id, grab->window,
+ mouse->spriteInfo->sprite->win, NotifyUngrab);
+ if (grab->confineTo)
+ ConfineCursorToWindow(mouse, RootWindow(mouse), FALSE, FALSE);
+ PostNewCursor(mouse);
+ if (grab->cursor)
+ FreeCursor(grab->cursor, (Cursor)0);
+
+ if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
+ ReattachToOldMaster(mouse);
+
+ ComputeFreezes();
+}
+
+/**
+ * Activate a keyboard grab on the given device.
+ *
+ * Extension devices have ActivateKeyboardGrab() set as their grabbing proc.
+ */
+void
+ActivateKeyboardGrab(DeviceIntPtr keybd, GrabPtr grab, TimeStamp time, Bool passive)
+{
+ GrabInfoPtr grabinfo = &keybd->deviceGrab;
+ WindowPtr oldWin;
+
+ /* slave devices need to float for the duration of the grab. */
+ if (grab->grabtype == GRABTYPE_XI2 &&
+ !(passive & ImplicitGrabMask) &&
+ !IsMaster(keybd))
+ DetachFromMaster(keybd);
+
+ if (grabinfo->grab)
+ oldWin = grabinfo->grab->window;
+ else if (keybd->focus)
+ oldWin = keybd->focus->win;
+ else
+ oldWin = keybd->spriteInfo->sprite->win;
+ if (oldWin == FollowKeyboardWin)
+ oldWin = keybd->focus->win;
+ if (keybd->valuator)
+ keybd->valuator->motionHintWindow = NullWindow;
+ DoFocusEvents(keybd, oldWin, grab->window, NotifyGrab);
+ if (syncEvents.playingEvents)
+ grabinfo->grabTime = syncEvents.time;
+ else
+ grabinfo->grabTime = time;
+ grabinfo->activeGrab = *grab;
+ grabinfo->grab = &grabinfo->activeGrab;
+ grabinfo->fromPassiveGrab = passive;
+ grabinfo->implicitGrab = passive & ImplicitGrabMask;
+ CheckGrabForSyncs(keybd, (Bool)grab->keyboardMode, (Bool)grab->pointerMode);
+}
+
+/**
+ * Delete keyboard grab for the given device.
+ */
+void
+DeactivateKeyboardGrab(DeviceIntPtr keybd)
+{
+ GrabPtr grab = keybd->deviceGrab.grab;
+ DeviceIntPtr dev;
+ WindowPtr focusWin = keybd->focus ? keybd->focus->win
+ : keybd->spriteInfo->sprite->win;
+ Bool wasImplicit = (keybd->deviceGrab.fromPassiveGrab &&
+ keybd->deviceGrab.implicitGrab);
+
+ if (focusWin == FollowKeyboardWin)
+ focusWin = inputInfo.keyboard->focus->win;
+ if (keybd->valuator)
+ keybd->valuator->motionHintWindow = NullWindow;
+ keybd->deviceGrab.grab = NullGrab;
+ keybd->deviceGrab.sync.state = NOT_GRABBED;
+ keybd->deviceGrab.fromPassiveGrab = FALSE;
+
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev->deviceGrab.sync.other == grab)
+ dev->deviceGrab.sync.other = NullGrab;
+ }
+ DoFocusEvents(keybd, grab->window, focusWin, NotifyUngrab);
+
+ if (!wasImplicit && grab->grabtype == GRABTYPE_XI2)
+ ReattachToOldMaster(keybd);
+
+ ComputeFreezes();
+}
+
+void
+AllowSome(ClientPtr client,
+ TimeStamp time,
+ DeviceIntPtr thisDev,
+ int newState)
+{
+ Bool thisGrabbed, otherGrabbed, othersFrozen, thisSynced;
+ TimeStamp grabTime;
+ DeviceIntPtr dev;
+ GrabInfoPtr devgrabinfo,
+ grabinfo = &thisDev->deviceGrab;
+
+ thisGrabbed = grabinfo->grab && SameClient(grabinfo->grab, client);
+ thisSynced = FALSE;
+ otherGrabbed = FALSE;
+ othersFrozen = FALSE;
+ grabTime = grabinfo->grabTime;
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ devgrabinfo = &dev->deviceGrab;
+
+ if (dev == thisDev)
+ continue;
+ if (devgrabinfo->grab && SameClient(devgrabinfo->grab, client))
+ {
+ if (!(thisGrabbed || otherGrabbed) ||
+ (CompareTimeStamps(devgrabinfo->grabTime, grabTime) == LATER))
+ grabTime = devgrabinfo->grabTime;
+ otherGrabbed = TRUE;
+ if (grabinfo->sync.other == devgrabinfo->grab)
+ thisSynced = TRUE;
+ if (devgrabinfo->sync.state >= FROZEN)
+ othersFrozen = TRUE;
+ }
+ }
+ if (!((thisGrabbed && grabinfo->sync.state >= FROZEN) || thisSynced))
+ return;
+ if ((CompareTimeStamps(time, currentTime) == LATER) ||
+ (CompareTimeStamps(time, grabTime) == EARLIER))
+ return;
+ switch (newState)
+ {
+ case THAWED: /* Async */
+ if (thisGrabbed)
+ grabinfo->sync.state = THAWED;
+ if (thisSynced)
+ grabinfo->sync.other = NullGrab;
+ ComputeFreezes();
+ break;
+ case FREEZE_NEXT_EVENT: /* Sync */
+ if (thisGrabbed)
+ {
+ grabinfo->sync.state = FREEZE_NEXT_EVENT;
+ if (thisSynced)
+ grabinfo->sync.other = NullGrab;
+ ComputeFreezes();
+ }
+ break;
+ case THAWED_BOTH: /* AsyncBoth */
+ if (othersFrozen)
+ {
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ devgrabinfo = &dev->deviceGrab;
+ if (devgrabinfo->grab
+ && SameClient(devgrabinfo->grab, client))
+ devgrabinfo->sync.state = THAWED;
+ if (devgrabinfo->sync.other &&
+ SameClient(devgrabinfo->sync.other, client))
+ devgrabinfo->sync.other = NullGrab;
+ }
+ ComputeFreezes();
+ }
+ break;
+ case FREEZE_BOTH_NEXT_EVENT: /* SyncBoth */
+ if (othersFrozen)
+ {
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ devgrabinfo = &dev->deviceGrab;
+ if (devgrabinfo->grab
+ && SameClient(devgrabinfo->grab, client))
+ devgrabinfo->sync.state = FREEZE_BOTH_NEXT_EVENT;
+ if (devgrabinfo->sync.other
+ && SameClient(devgrabinfo->sync.other, client))
+ devgrabinfo->sync.other = NullGrab;
+ }
+ ComputeFreezes();
+ }
+ break;
+ case NOT_GRABBED: /* Replay */
+ if (thisGrabbed && grabinfo->sync.state == FROZEN_WITH_EVENT)
+ {
+ if (thisSynced)
+ grabinfo->sync.other = NullGrab;
+ syncEvents.replayDev = thisDev;
+ syncEvents.replayWin = grabinfo->grab->window;
+ (*grabinfo->DeactivateGrab)(thisDev);
+ syncEvents.replayDev = (DeviceIntPtr)NULL;
+ }
+ break;
+ case THAW_OTHERS: /* AsyncOthers */
+ if (othersFrozen)
+ {
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev == thisDev)
+ continue;
+ devgrabinfo = &dev->deviceGrab;
+ if (devgrabinfo->grab
+ && SameClient(devgrabinfo->grab, client))
+ devgrabinfo->sync.state = THAWED;
+ if (devgrabinfo->sync.other
+ && SameClient(devgrabinfo->sync.other, client))
+ devgrabinfo->sync.other = NullGrab;
+ }
+ ComputeFreezes();
+ }
+ break;
+ }
+}
+
+/**
+ * Server-side protocol handling for AllowEvents request.
+ *
+ * Release some events from a frozen device.
+ */
+int
+ProcAllowEvents(ClientPtr client)
+{
+ TimeStamp time;
+ DeviceIntPtr mouse = NULL;
+ DeviceIntPtr keybd = NULL;
+ REQUEST(xAllowEventsReq);
+
+ REQUEST_SIZE_MATCH(xAllowEventsReq);
+ time = ClientTimeToServerTime(stuff->time);
+
+ mouse = PickPointer(client);
+ keybd = PickKeyboard(client);
+
+ switch (stuff->mode)
+ {
+ case ReplayPointer:
+ AllowSome(client, time, mouse, NOT_GRABBED);
+ break;
+ case SyncPointer:
+ AllowSome(client, time, mouse, FREEZE_NEXT_EVENT);
+ break;
+ case AsyncPointer:
+ AllowSome(client, time, mouse, THAWED);
+ break;
+ case ReplayKeyboard:
+ AllowSome(client, time, keybd, NOT_GRABBED);
+ break;
+ case SyncKeyboard:
+ AllowSome(client, time, keybd, FREEZE_NEXT_EVENT);
+ break;
+ case AsyncKeyboard:
+ AllowSome(client, time, keybd, THAWED);
+ break;
+ case SyncBoth:
+ AllowSome(client, time, keybd, FREEZE_BOTH_NEXT_EVENT);
+ break;
+ case AsyncBoth:
+ AllowSome(client, time, keybd, THAWED_BOTH);
+ break;
+ default:
+ client->errorValue = stuff->mode;
+ return BadValue;
+ }
+ return Success;
+}
+
+/**
+ * Deactivate grabs from any device that has been grabbed by the client.
+ */
+void
+ReleaseActiveGrabs(ClientPtr client)
+{
+ DeviceIntPtr dev;
+ Bool done;
+
+ /* XXX CloseDownClient should remove passive grabs before
+ * releasing active grabs.
+ */
+ do {
+ done = TRUE;
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
+ {
+ (*dev->deviceGrab.DeactivateGrab)(dev);
+ done = FALSE;
+ }
+ }
+ } while (!done);
+}
+
+/**************************************************************************
+ * The following procedures deal with delivering events *
+ **************************************************************************/
+
+/**
+ * Deliver the given events to the given client.
+ *
+ * More than one event may be delivered at a time. This is the case with
+ * DeviceMotionNotifies which may be followed by DeviceValuator events.
+ *
+ * TryClientEvents() is the last station before actually writing the events to
+ * the socket. Anything that is not filtered here, will get delivered to the
+ * client.
+ * An event is only delivered if
+ * - mask and filter match up.
+ * - no other client has a grab on the device that caused the event.
+ *
+ *
+ * @param client The target client to deliver to.
+ * @param dev The device the event came from. May be NULL.
+ * @param pEvents The events to be delivered.
+ * @param count Number of elements in pEvents.
+ * @param mask Event mask as set by the window.
+ * @param filter Mask based on event type.
+ * @param grab Possible grab on the device that caused the event.
+ *
+ * @return 1 if event was delivered, 0 if not or -1 if grab was not set by the
+ * client.
+ */
+int
+TryClientEvents (ClientPtr client, DeviceIntPtr dev, xEvent *pEvents,
+ int count, Mask mask, Mask filter, GrabPtr grab)
+{
+ int i;
+ int type;
+
+#ifdef DEBUG_EVENTS
+ ErrorF("[dix] Event([%d, %d], mask=0x%lx), client=%d%s",
+ pEvents->u.u.type, pEvents->u.u.detail, mask,
+ client ? client->index : -1,
+ (client && client->clientGone) ? " (gone)" : "");
+#endif
+
+ if (!client || client == serverClient || client->clientGone) {
+#ifdef DEBUG_EVENTS
+ ErrorF(" not delivered to fake/dead client\n");
+#endif
+ return 0;
+ }
+
+ if (filter != CantBeFiltered && !(mask & filter))
+ {
+ #ifdef DEBUG_EVENTS
+ ErrorF(" filtered\n");
+ #endif
+ return 0;
+ }
+
+ if (grab && !SameClient(grab, client))
+ {
+#ifdef DEBUG_EVENTS
+ ErrorF(" not delivered due to grab\n");
+#endif
+ return -1; /* don't send, but notify caller */
+ }
+
+ type = pEvents->u.u.type;
+ if (type == MotionNotify)
+ {
+ if (mask & PointerMotionHintMask)
+ {
+ if (WID(dev->valuator->motionHintWindow) ==
+ pEvents->u.keyButtonPointer.event)
+ {
+#ifdef DEBUG_EVENTS
+ ErrorF("[dix] \n");
+ ErrorF("[dix] motionHintWindow == keyButtonPointer.event\n");
+#endif
+ return 1; /* don't send, but pretend we did */
+ }
+ pEvents->u.u.detail = NotifyHint;
+ }
+ else
+ {
+ pEvents->u.u.detail = NotifyNormal;
+ }
+ }
+ else if (type == DeviceMotionNotify)
+ {
+ if (MaybeSendDeviceMotionNotifyHint((deviceKeyButtonPointer*)pEvents,
+ mask) != 0)
+ return 1;
+ } else if (type == KeyPress)
+ {
+ if (EventIsKeyRepeat(pEvents))
+ {
+ if (!_XkbWantsDetectableAutoRepeat(client))
+ {
+ xEvent release = *pEvents;
+ release.u.u.type = KeyRelease;
+ release.u.u.sequenceNumber = client->sequence;
+ WriteEventsToClient(client, 1, &release);
+#ifdef DEBUG_EVENTS
+ ErrorF(" (plus fake core release for repeat)");
+#endif
+ } else
+ {
+#ifdef DEBUG_EVENTS
+ ErrorF(" (detectable autorepeat for core)");
+#endif
+ }
+ }
+
+ } else if (type == DeviceKeyPress)
+ {
+ if (EventIsKeyRepeat(pEvents))
+ {
+ if (!_XkbWantsDetectableAutoRepeat(client))
+ {
+ deviceKeyButtonPointer release = *(deviceKeyButtonPointer *)pEvents;
+ release.type = DeviceKeyRelease;
+ release.sequenceNumber = client->sequence;
+#ifdef DEBUG_EVENTS
+ ErrorF(" (plus fake xi1 release for repeat)");
+#endif
+ WriteEventsToClient(client, 1, (xEvent *) &release);
+ }
+ else {
+#ifdef DEBUG_EVENTS
+ ErrorF(" (detectable autorepeat for core)");
+#endif
+ }
+ }
+ }
+
+ type &= 0177;
+ if (type != KeymapNotify)
+ {
+ /* all extension events must have a sequence number */
+ for (i = 0; i < count; i++)
+ pEvents[i].u.u.sequenceNumber = client->sequence;
+ }
+
+ if (BitIsOn(criticalEvents, type))
+ {
+ if (client->smart_priority < SMART_MAX_PRIORITY)
+ client->smart_priority++;
+ SetCriticalOutputPending();
+ }
+
+ WriteEventsToClient(client, count, pEvents);
+#ifdef DEBUG_EVENTS
+ ErrorF("[dix] delivered\n");
+#endif
+ return 1;
+}
+
+/**
+ * Deliver events to a window. At this point, we do not yet know if the event
+ * actually needs to be delivered. May activate a grab if the event is a
+ * button press.
+ *
+ * Core events are always delivered to the window owner. If the filter is
+ * something other than CantBeFiltered, the event is also delivered to other
+ * clients with the matching mask on the window.
+ *
+ * More than one event may be delivered at a time. This is the case with
+ * DeviceMotionNotifies which may be followed by DeviceValuator events.
+ *
+ * @param pWin The window that would get the event.
+ * @param pEvents The events to be delivered.
+ * @param count Number of elements in pEvents.
+ * @param filter Mask based on event type.
+ * @param grab Possible grab on the device that caused the event.
+ *
+ * @return Number of events delivered to various clients.
+ */
+int
+DeliverEventsToWindow(DeviceIntPtr pDev, WindowPtr pWin, xEvent
+ *pEvents, int count, Mask filter, GrabPtr grab)
+{
+ int deliveries = 0, nondeliveries = 0;
+ int attempt;
+ InputClients *other;
+ ClientPtr client = NullClient;
+ Mask deliveryMask = 0; /* If a grab occurs due to a button press, then
+ this mask is the mask of the grab. */
+ int type = pEvents->u.u.type;
+
+
+ /* Deliver to window owner */
+ if ((filter == CantBeFiltered) || CORE_EVENT(pEvents))
+ {
+ /* if nobody ever wants to see this event, skip some work */
+ if (filter != CantBeFiltered &&
+ !((wOtherEventMasks(pWin)|pWin->eventMask) & filter))
+ return 0;
+
+ if (IsInterferingGrab(wClient(pWin), pDev, pEvents))
+ return 0;
+
+ if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
+ /* do nothing */;
+ else if ( (attempt = TryClientEvents(wClient(pWin), pDev, pEvents,
+ count, pWin->eventMask,
+ filter, grab)) )
+ {
+ if (attempt > 0)
+ {
+ deliveries++;
+ client = wClient(pWin);
+ deliveryMask = pWin->eventMask;
+ } else
+ nondeliveries--;
+ }
+ }
+
+ /* CantBeFiltered means only window owner gets the event */
+ if (filter != CantBeFiltered)
+ {
+ if (CORE_EVENT(pEvents))
+ other = (InputClients *)wOtherClients(pWin);
+ else if (XI2_EVENT(pEvents))
+ {
+ OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
+ /* Has any client selected for the event? */
+ if (!GetWindowXI2Mask(pDev, pWin, pEvents))
+ return 0;
+ other = inputMasks->inputClients;
+ } else {
+ OtherInputMasks *inputMasks = wOtherInputMasks(pWin);
+ /* Has any client selected for the event? */
+ if (!inputMasks ||
+ !(inputMasks->inputEvents[pDev->id] & filter))
+ return 0;
+
+ other = inputMasks->inputClients;
+ }
+
+ for (; other; other = other->next)
+ {
+ Mask mask;
+ if (IsInterferingGrab(rClient(other), pDev, pEvents))
+ continue;
+
+ mask = GetEventMask(pDev, pEvents, other);
+
+ if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin,
+ pEvents, count))
+ /* do nothing */;
+ else if ( (attempt = TryClientEvents(rClient(other), pDev,
+ pEvents, count,
+ mask, filter, grab)) )
+ {
+ if (attempt > 0)
+ {
+ deliveries++;
+ client = rClient(other);
+ deliveryMask = mask;
+ } else
+ nondeliveries--;
+ }
+ }
+ }
+ /*
+ * Note that since core events are delivered first, an implicit grab may
+ * be activated on a core grab, stopping the XI events.
+ */
+ if ((type == DeviceButtonPress || type == ButtonPress ||
+ ((XI2_EVENT(pEvents) && ((xGenericEvent*)pEvents)->evtype == XI_ButtonPress)))
+ && deliveries
+ && (!grab))
+ {
+ GrabRec tempGrab;
+ OtherInputMasks *inputMasks;
+
+ memset(&tempGrab, 0, sizeof(GrabRec));
+ tempGrab.next = NULL;
+ tempGrab.device = pDev;
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.window = pWin;
+ tempGrab.ownerEvents = (deliveryMask & OwnerGrabButtonMask) ? TRUE : FALSE;
+ tempGrab.eventMask = deliveryMask;
+ tempGrab.keyboardMode = GrabModeAsync;
+ tempGrab.pointerMode = GrabModeAsync;
+ tempGrab.confineTo = NullWindow;
+ tempGrab.cursor = NullCursor;
+ tempGrab.type = type;
+ if (type == ButtonPress)
+ tempGrab.grabtype = GRABTYPE_CORE;
+ else if (type == DeviceButtonPress)
+ tempGrab.grabtype = GRABTYPE_XI;
+ else
+ {
+ tempGrab.type = ((xGenericEvent*)pEvents)->evtype;
+ tempGrab.grabtype = GRABTYPE_XI2;
+ }
+
+ /* get the XI and XI2 device mask */
+ inputMasks = wOtherInputMasks(pWin);
+ tempGrab.deviceMask = (inputMasks) ? inputMasks->inputEvents[pDev->id]: 0;
+
+ if (inputMasks)
+ memcpy(tempGrab.xi2mask, inputMasks->xi2mask,
+ sizeof(tempGrab.xi2mask));
+
+ (*pDev->deviceGrab.ActivateGrab)(pDev, &tempGrab,
+ currentTime, TRUE | ImplicitGrabMask);
+ }
+ else if ((type == MotionNotify) && deliveries)
+ pDev->valuator->motionHintWindow = pWin;
+ else
+ {
+ if ((type == DeviceMotionNotify || type == DeviceButtonPress) &&
+ deliveries)
+ CheckDeviceGrabAndHintWindow (pWin, type,
+ (deviceKeyButtonPointer*) pEvents,
+ grab, client, deliveryMask);
+ }
+ if (deliveries)
+ return deliveries;
+ return nondeliveries;
+}
+
+/* If the event goes to dontClient, don't send it and return 0. if
+ send works, return 1 or if send didn't work, return 2.
+ Only works for core events.
+*/
+
+#ifdef PANORAMIX
+static int
+XineramaTryClientEventsResult(
+ ClientPtr client,
+ GrabPtr grab,
+ Mask mask,
+ Mask filter
+){
+ if ((client) && (client != serverClient) && (!client->clientGone) &&
+ ((filter == CantBeFiltered) || (mask & filter)))
+ {
+ if (grab && !SameClient(grab, client)) return -1;
+ else return 1;
+ }
+ return 0;
+}
+#endif
+
+/**
+ * Try to deliver events to the interested parties.
+ *
+ * @param pWin The window that would get the event.
+ * @param pEvents The events to be delivered.
+ * @param count Number of elements in pEvents.
+ * @param filter Mask based on event type.
+ * @param dontClient Don't deliver to the dontClient.
+ */
+int
+MaybeDeliverEventsToClient(WindowPtr pWin, xEvent *pEvents,
+ int count, Mask filter, ClientPtr dontClient)
+{
+ OtherClients *other;
+
+
+ if (pWin->eventMask & filter)
+ {
+ if (wClient(pWin) == dontClient)
+ return 0;
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
+ return XineramaTryClientEventsResult(
+ wClient(pWin), NullGrab, pWin->eventMask, filter);
+#endif
+ if (XaceHook(XACE_RECEIVE_ACCESS, wClient(pWin), pWin, pEvents, count))
+ return 1; /* don't send, but pretend we did */
+ return TryClientEvents(wClient(pWin), NULL, pEvents, count,
+ pWin->eventMask, filter, NullGrab);
+ }
+ for (other = wOtherClients(pWin); other; other = other->next)
+ {
+ if (other->mask & filter)
+ {
+ if (SameClient(other, dontClient))
+ return 0;
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
+ return XineramaTryClientEventsResult(
+ rClient(other), NullGrab, other->mask, filter);
+#endif
+ if (XaceHook(XACE_RECEIVE_ACCESS, rClient(other), pWin, pEvents,
+ count))
+ return 1; /* don't send, but pretend we did */
+ return TryClientEvents(rClient(other), NULL, pEvents, count,
+ other->mask, filter, NullGrab);
+ }
+ }
+ return 2;
+}
+
+static Window FindChildForEvent(DeviceIntPtr dev, WindowPtr event)
+{
+ SpritePtr pSprite = dev->spriteInfo->sprite;
+ WindowPtr w = pSprite->spriteTrace[pSprite->spriteTraceGood-1];
+ Window child = None;
+
+ /* If the search ends up past the root should the child field be
+ set to none or should the value in the argument be passed
+ through. It probably doesn't matter since everyone calls
+ this function with child == None anyway. */
+ while (w)
+ {
+ /* If the source window is same as event window, child should be
+ none. Don't bother going all all the way back to the root. */
+
+ if (w == event)
+ {
+ child = None;
+ break;
+ }
+
+ if (w->parent == event)
+ {
+ child = w->drawable.id;
+ break;
+ }
+ w = w->parent;
+ }
+ return child;
+}
+
+/**
+ * Adjust event fields to comply with the window properties.
+ *
+ * @param xE Event to be modified in place
+ * @param pWin The window to get the information from.
+ * @param child Child window setting for event (if applicable)
+ * @param calcChild If True, calculate the child window.
+ */
+void
+FixUpEventFromWindow(
+ DeviceIntPtr pDev,
+ xEvent *xE,
+ WindowPtr pWin,
+ Window child,
+ Bool calcChild)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ if (calcChild)
+ child = FindChildForEvent(pDev, pWin);
+
+ if (XI2_EVENT(xE))
+ {
+ xXIDeviceEvent* event = (xXIDeviceEvent*)xE;
+
+ if (event->evtype == XI_RawKeyPress ||
+ event->evtype == XI_RawKeyRelease ||
+ event->evtype == XI_RawButtonPress ||
+ event->evtype == XI_RawButtonRelease ||
+ event->evtype == XI_RawMotion ||
+ event->evtype == XI_DeviceChanged ||
+ event->evtype == XI_HierarchyChanged ||
+ event->evtype == XI_PropertyEvent)
+ return;
+
+ event->root = RootWindow(pDev)->drawable.id;
+ event->event = pWin->drawable.id;
+ if (pSprite->hot.pScreen == pWin->drawable.pScreen)
+ {
+ event->event_x = event->root_x - FP1616(pWin->drawable.x, 0);
+ event->event_y = event->root_y - FP1616(pWin->drawable.y, 0);
+ event->child = child;
+ } else
+ {
+ event->event_x = 0;
+ event->event_y = 0;
+ event->child = None;
+ }
+
+ if (event->evtype == XI_Enter || event->evtype == XI_Leave ||
+ event->evtype == XI_FocusIn || event->evtype == XI_FocusOut)
+ ((xXIEnterEvent*)event)->same_screen =
+ (pSprite->hot.pScreen == pWin->drawable.pScreen);
+
+ } else
+ {
+ XE_KBPTR.root = RootWindow(pDev)->drawable.id;
+ XE_KBPTR.event = pWin->drawable.id;
+ if (pSprite->hot.pScreen == pWin->drawable.pScreen)
+ {
+ XE_KBPTR.sameScreen = xTrue;
+ XE_KBPTR.child = child;
+ XE_KBPTR.eventX =
+ XE_KBPTR.rootX - pWin->drawable.x;
+ XE_KBPTR.eventY =
+ XE_KBPTR.rootY - pWin->drawable.y;
+ }
+ else
+ {
+ XE_KBPTR.sameScreen = xFalse;
+ XE_KBPTR.child = None;
+ XE_KBPTR.eventX = 0;
+ XE_KBPTR.eventY = 0;
+ }
+ }
+}
+
+/**
+ * Return masks for EventIsDeliverable.
+ * @defgroup EventIsDeliverable return flags
+ * @{
+ */
+#define XI_MASK (1 << 0) /**< XI mask set on window */
+#define CORE_MASK (1 << 1) /**< Core mask set on window */
+#define DONT_PROPAGATE_MASK (1 << 2) /**< DontPropagate mask set on window */
+#define XI2_MASK (1 << 3) /**< XI2 mask set on window */
+/* @} */
+
+/**
+ * Check if a given event is deliverable at all on a given window.
+ *
+ * This function only checks if any client wants it, not for a specific
+ * client.
+ *
+ * @param[in] dev The device this event is being sent for.
+ * @param[in] event The event that is to be sent.
+ * @param[in] win The current event window.
+ *
+ * @return Bitmask of ::XI2_MASK, ::XI_MASK, ::CORE_MASK, and
+ * ::DONT_PROPAGATE_MASK.
+ */
+static int
+EventIsDeliverable(DeviceIntPtr dev, InternalEvent* event, WindowPtr win)
+{
+ int rc = 0;
+ int filter = 0;
+ int type;
+ OtherInputMasks *inputMasks = wOtherInputMasks(win);
+ xEvent ev;
+
+ /* XXX: this makes me gag */
+ type = GetXI2Type(event);
+ ev.u.u.type = GenericEvent; /* GetEventFilter only cares about type and evtype*/
+ ((xGenericEvent*)&ev)->extension = IReqCode;
+ ((xGenericEvent*)&ev)->evtype = type;
+ filter = GetEventFilter(dev, &ev);
+ if (type && inputMasks &&
+ ((inputMasks->xi2mask[XIAllDevices][type/8] & filter) ||
+ ((inputMasks->xi2mask[XIAllMasterDevices][type/8] & filter) && IsMaster(dev)) ||
+ (inputMasks->xi2mask[dev->id][type/8] & filter)))
+ rc |= XI2_MASK;
+
+ type = GetXIType(event);
+ ev.u.u.type = type;
+ filter = GetEventFilter(dev, &ev);
+
+ /* Check for XI mask */
+ if (type && inputMasks &&
+ (inputMasks->deliverableEvents[dev->id] & filter) &&
+ (inputMasks->inputEvents[dev->id] & filter))
+ rc |= XI_MASK;
+
+ /* Check for XI DontPropagate mask */
+ if (type && inputMasks &&
+ (inputMasks->dontPropagateMask[dev->id] & filter))
+ rc |= DONT_PROPAGATE_MASK;
+
+ /* Check for core mask */
+ type = GetCoreType(event);
+ if (type && (win->deliverableEvents & filter) &&
+ ((wOtherEventMasks(win) | win->eventMask) & filter))
+ rc |= CORE_MASK;
+
+ /* Check for core DontPropagate mask */
+ if (type && (filter & wDontPropagateMask(win)))
+ rc |= DONT_PROPAGATE_MASK;
+
+ return rc;
+}
+
+/**
+ * Deliver events caused by input devices.
+ *
+ * For events from a non-grabbed, non-focus device, DeliverDeviceEvents is
+ * called directly from the processInputProc.
+ * For grabbed devices, DeliverGrabbedEvent is called first, and _may_ call
+ * DeliverDeviceEvents.
+ * For focused events, DeliverFocusedEvent is called first, and _may_ call
+ * DeliverDeviceEvents.
+ *
+ * @param pWin Window to deliver event to.
+ * @param event The events to deliver, not yet in wire format.
+ * @param grab Possible grab on a device.
+ * @param stopAt Don't recurse up to the root window.
+ * @param dev The device that is responsible for the event.
+ *
+ * @see DeliverGrabbedEvent
+ * @see DeliverFocusedEvent
+ */
+int
+DeliverDeviceEvents(WindowPtr pWin, InternalEvent *event, GrabPtr grab,
+ WindowPtr stopAt, DeviceIntPtr dev)
+{
+ Window child = None;
+ Mask filter;
+ int deliveries = 0;
+ xEvent core;
+ xEvent *xE = NULL;
+ int rc, mask, count = 0;
+
+ CHECKEVENT(event);
+
+ while (pWin)
+ {
+ if ((mask = EventIsDeliverable(dev, event, pWin)))
+ {
+ /* XI2 events first */
+ if (mask & XI2_MASK)
+ {
+ xEvent *xi2 = NULL;
+ rc = EventToXI2(event, &xi2);
+ if (rc == Success)
+ {
+ /* XXX: XACE */
+ filter = GetEventFilter(dev, xi2);
+ FixUpEventFromWindow(dev, xi2, pWin, child, FALSE);
+ deliveries = DeliverEventsToWindow(dev, pWin, xi2, 1,
+ filter, grab);
+ xfree(xi2);
+ if (deliveries > 0)
+ goto unwind;
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI2 conversion failed in DDE (%d).\n",
+ dev->name, rc);
+ }
+
+ /* XI events */
+ if (mask & XI_MASK)
+ {
+ rc = EventToXI(event, &xE, &count);
+ if (rc == Success) {
+ if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, xE, count) == Success) {
+ filter = GetEventFilter(dev, xE);
+ FixUpEventFromWindow(dev, xE, pWin, child, FALSE);
+ deliveries = DeliverEventsToWindow(dev, pWin, xE, count,
+ filter, grab);
+ if (deliveries > 0)
+ goto unwind;
+ }
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI conversion failed in DDE (%d, %d). Skipping delivery.\n",
+ dev->name, event->any.type, rc);
+ }
+
+ /* Core event */
+ if ((mask & CORE_MASK) && IsMaster(dev) && dev->coreEvents)
+ {
+ rc = EventToCore(event, &core);
+ if (rc == Success) {
+ if (XaceHook(XACE_SEND_ACCESS, NULL, dev, pWin, &core, 1) == Success) {
+ filter = GetEventFilter(dev, &core);
+ FixUpEventFromWindow(dev, &core, pWin, child, FALSE);
+ deliveries = DeliverEventsToWindow(dev, pWin, &core, 1,
+ filter, grab);
+ if (deliveries > 0)
+ goto unwind;
+ }
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: Core conversion failed in DDE (%d, %d).\n",
+ dev->name, event->any.type, rc);
+ }
+
+ if ((deliveries < 0) || (pWin == stopAt) ||
+ (mask & DONT_PROPAGATE_MASK))
+ {
+ deliveries = 0;
+ goto unwind;
+ }
+ }
+
+ child = pWin->drawable.id;
+ pWin = pWin->parent;
+ }
+
+unwind:
+ xfree(xE);
+ return deliveries;
+}
+
+#undef XI_MASK
+#undef CORE_MASK
+#undef DONT_PROPAGATE_MASK
+
+/**
+ * Deliver event to a window and it's immediate parent. Used for most window
+ * events (CreateNotify, ConfigureNotify, etc.). Not useful for events that
+ * propagate up the tree or extension events
+ *
+ * In case of a ReparentNotify event, the event will be delivered to the
+ * otherParent as well.
+ *
+ * @param pWin Window to deliver events to.
+ * @param xE Events to deliver.
+ * @param count number of events in xE.
+ * @param otherParent Used for ReparentNotify events.
+ */
+int
+DeliverEvents(WindowPtr pWin, xEvent *xE, int count,
+ WindowPtr otherParent)
+{
+ Mask filter;
+ int deliveries;
+ DeviceIntRec dummy;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum)
+ return count;
+#endif
+
+ if (!count)
+ return 0;
+
+ dummy.id = XIAllDevices;
+ filter = GetEventFilter(&dummy, xE);
+ if ((filter & SubstructureNotifyMask) && (xE->u.u.type != CreateNotify))
+ xE->u.destroyNotify.event = pWin->drawable.id;
+ if (filter != StructureAndSubMask)
+ return DeliverEventsToWindow(&dummy, pWin, xE, count, filter, NullGrab);
+ deliveries = DeliverEventsToWindow(&dummy, pWin, xE, count,
+ StructureNotifyMask, NullGrab);
+ if (pWin->parent)
+ {
+ xE->u.destroyNotify.event = pWin->parent->drawable.id;
+ deliveries += DeliverEventsToWindow(&dummy, pWin->parent, xE, count,
+ SubstructureNotifyMask, NullGrab);
+ if (xE->u.u.type == ReparentNotify)
+ {
+ xE->u.destroyNotify.event = otherParent->drawable.id;
+ deliveries += DeliverEventsToWindow(&dummy,
+ otherParent, xE, count, SubstructureNotifyMask,
+ NullGrab);
+ }
+ }
+ return deliveries;
+}
+
+
+static Bool
+PointInBorderSize(WindowPtr pWin, int x, int y)
+{
+ BoxRec box;
+ SpritePtr pSprite = inputInfo.pointer->spriteInfo->sprite;
+
+ if(POINT_IN_REGION(pWin->drawable.pScreen, &pWin->borderSize, x, y, &box))
+ return TRUE;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension &&
+ XineramaSetWindowPntrs(inputInfo.pointer, pWin)) {
+ int i;
+
+ for(i = 1; i < PanoramiXNumScreens; i++) {
+ if(POINT_IN_REGION(pSprite->screen,
+ &pSprite->windows[i]->borderSize,
+ x + panoramiXdataPtr[0].x - panoramiXdataPtr[i].x,
+ y + panoramiXdataPtr[0].y - panoramiXdataPtr[i].y,
+ &box))
+ return TRUE;
+ }
+ }
+#endif
+ return FALSE;
+}
+
+/**
+ * Traversed from the root window to the window at the position x/y. While
+ * traversing, it sets up the traversal history in the spriteTrace array.
+ * After completing, the spriteTrace history is set in the following way:
+ * spriteTrace[0] ... root window
+ * spriteTrace[1] ... top level window that encloses x/y
+ * ...
+ * spriteTrace[spriteTraceGood - 1] ... window at x/y
+ *
+ * @returns the window at the given coordinates.
+ */
+static WindowPtr
+XYToWindow(DeviceIntPtr pDev, int x, int y)
+{
+ WindowPtr pWin;
+ BoxRec box;
+ SpritePtr pSprite;
+
+ pSprite = pDev->spriteInfo->sprite;
+ pSprite->spriteTraceGood = 1; /* root window still there */
+ pWin = RootWindow(pDev)->firstChild;
+ while (pWin)
+ {
+ if ((pWin->mapped) &&
+ (x >= pWin->drawable.x - wBorderWidth (pWin)) &&
+ (x < pWin->drawable.x + (int)pWin->drawable.width +
+ wBorderWidth(pWin)) &&
+ (y >= pWin->drawable.y - wBorderWidth (pWin)) &&
+ (y < pWin->drawable.y + (int)pWin->drawable.height +
+ wBorderWidth (pWin))
+ /* When a window is shaped, a further check
+ * is made to see if the point is inside
+ * borderSize
+ */
+ && (!wBoundingShape(pWin) || PointInBorderSize(pWin, x, y))
+ && (!wInputShape(pWin) ||
+ POINT_IN_REGION(pWin->drawable.pScreen,
+ wInputShape(pWin),
+ x - pWin->drawable.x,
+ y - pWin->drawable.y, &box))
+#ifdef ROOTLESS
+ /* In rootless mode windows may be offscreen, even when
+ * they're in X's stack. (E.g. if the native window system
+ * implements some form of virtual desktop system).
+ */
+ && !pWin->rootlessUnhittable
+#endif
+ )
+ {
+ if (pSprite->spriteTraceGood >= pSprite->spriteTraceSize)
+ {
+ pSprite->spriteTraceSize += 10;
+ pSprite->spriteTrace = xrealloc(pSprite->spriteTrace,
+ pSprite->spriteTraceSize*sizeof(WindowPtr));
+ }
+ pSprite->spriteTrace[pSprite->spriteTraceGood++] = pWin;
+ pWin = pWin->firstChild;
+ }
+ else
+ pWin = pWin->nextSib;
+ }
+ return pSprite->spriteTrace[pSprite->spriteTraceGood-1];
+}
+
+/**
+ * Ungrab a currently FocusIn grabbed device and grab the device on the
+ * given window. If the win given is the NoneWin, the device is ungrabbed if
+ * applicable and FALSE is returned.
+ *
+ * @returns TRUE if the device has been grabbed, or FALSE otherwise.
+ */
+BOOL
+ActivateFocusInGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
+{
+ BOOL rc = FALSE;
+ DeviceEvent event;
+
+ if (dev->deviceGrab.grab &&
+ dev->deviceGrab.fromPassiveGrab &&
+ dev->deviceGrab.grab->type == XI_Enter)
+ {
+ if (dev->deviceGrab.grab->window == win ||
+ IsParent(dev->deviceGrab.grab->window, win))
+ return FALSE;
+ DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
+ (*dev->deviceGrab.DeactivateGrab)(dev);
+ }
+
+ if (win == NoneWin || win == PointerRootWin)
+ return FALSE;
+
+ memset(&event, 0, sizeof(DeviceEvent));
+ event.header = ET_Internal;
+ event.type = ET_FocusIn;
+ event.length = sizeof(DeviceEvent);
+ event.time = GetTimeInMillis();
+ event.deviceid = dev->id;
+ event.sourceid = dev->id;
+ event.detail.button = 0;
+ rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
+ if (rc)
+ DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
+ return rc;
+}
+
+/**
+ * Ungrab a currently Enter grabbed device and grab the device for the given
+ * window.
+ *
+ * @returns TRUE if the device has been grabbed, or FALSE otherwise.
+ */
+static BOOL
+ActivateEnterGrab(DeviceIntPtr dev, WindowPtr old, WindowPtr win)
+{
+ BOOL rc = FALSE;
+ DeviceEvent event;
+
+ if (dev->deviceGrab.grab &&
+ dev->deviceGrab.fromPassiveGrab &&
+ dev->deviceGrab.grab->type == XI_Enter)
+ {
+ if (dev->deviceGrab.grab->window == win ||
+ IsParent(dev->deviceGrab.grab->window, win))
+ return FALSE;
+ DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveUngrab);
+ (*dev->deviceGrab.DeactivateGrab)(dev);
+ }
+
+ memset(&event, 0, sizeof(DeviceEvent));
+ event.header = ET_Internal;
+ event.type = ET_Enter;
+ event.length = sizeof(DeviceEvent);
+ event.time = GetTimeInMillis();
+ event.deviceid = dev->id;
+ event.sourceid = dev->id;
+ event.detail.button = 0;
+ rc = CheckPassiveGrabsOnWindow(win, dev, &event, FALSE);
+ if (rc)
+ DoEnterLeaveEvents(dev, dev->id, old, win, XINotifyPassiveGrab);
+
+ return rc;
+}
+
+/**
+ * Update the sprite coordinates based on the event. Update the cursor
+ * position, then update the event with the new coordinates that may have been
+ * changed. If the window underneath the sprite has changed, change to new
+ * cursor and send enter/leave events.
+ *
+ * CheckMotion() will not do anything and return FALSE if the event is not a
+ * pointer event.
+ *
+ * @return TRUE if the sprite has moved or FALSE otherwise.
+ */
+Bool
+CheckMotion(DeviceEvent *ev, DeviceIntPtr pDev)
+{
+ WindowPtr prevSpriteWin, newSpriteWin;
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ CHECKEVENT(ev);
+
+ prevSpriteWin = pSprite->win;
+
+ if (ev && !syncEvents.playingEvents)
+ {
+ /* GetPointerEvents() guarantees that pointer events have the correct
+ rootX/Y set already. */
+ switch (ev->type)
+ {
+ case ET_ButtonPress:
+ case ET_ButtonRelease:
+ case ET_Motion:
+ break;
+ default:
+ /* all other events return FALSE */
+ return FALSE;
+ }
+
+
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ {
+ /* Motion events entering DIX get translated to Screen 0
+ coordinates. Replayed events have already been
+ translated since they've entered DIX before */
+ ev->root_x += panoramiXdataPtr[pSprite->screen->myNum].x -
+ panoramiXdataPtr[0].x;
+ ev->root_y += panoramiXdataPtr[pSprite->screen->myNum].y -
+ panoramiXdataPtr[0].y;
+ } else
+#endif
+ {
+ if (pSprite->hot.pScreen != pSprite->hotPhys.pScreen)
+ {
+ pSprite->hot.pScreen = pSprite->hotPhys.pScreen;
+ RootWindow(pDev) = WindowTable[pSprite->hot.pScreen->myNum];
+ }
+ }
+
+ pSprite->hot.x = ev->root_x;
+ pSprite->hot.y = ev->root_y;
+ if (pSprite->hot.x < pSprite->physLimits.x1)
+ pSprite->hot.x = pSprite->physLimits.x1;
+ else if (pSprite->hot.x >= pSprite->physLimits.x2)
+ pSprite->hot.x = pSprite->physLimits.x2 - 1;
+ if (pSprite->hot.y < pSprite->physLimits.y1)
+ pSprite->hot.y = pSprite->physLimits.y1;
+ else if (pSprite->hot.y >= pSprite->physLimits.y2)
+ pSprite->hot.y = pSprite->physLimits.y2 - 1;
+ if (pSprite->hotShape)
+ ConfineToShape(pDev, pSprite->hotShape, &pSprite->hot.x, &pSprite->hot.y);
+ pSprite->hotPhys = pSprite->hot;
+
+ if ((pSprite->hotPhys.x != ev->root_x) ||
+ (pSprite->hotPhys.y != ev->root_y))
+ {
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension)
+ {
+ XineramaSetCursorPosition(
+ pDev, pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
+ } else
+#endif
+ {
+ (*pSprite->hotPhys.pScreen->SetCursorPosition)(
+ pDev, pSprite->hotPhys.pScreen,
+ pSprite->hotPhys.x, pSprite->hotPhys.y, FALSE);
+ }
+ }
+
+ ev->root_x = pSprite->hot.x;
+ ev->root_y = pSprite->hot.y;
+ }
+
+ newSpriteWin = XYToWindow(pDev, pSprite->hot.x, pSprite->hot.y);
+
+ if (newSpriteWin != prevSpriteWin)
+ {
+ int sourceid;
+ if (!ev) {
+ UpdateCurrentTimeIf();
+ sourceid = pDev->id; /* when from WindowsRestructured */
+ } else
+ sourceid = ev->sourceid;
+
+ if (prevSpriteWin != NullWindow) {
+ if (!ActivateEnterGrab(pDev, prevSpriteWin, newSpriteWin))
+ DoEnterLeaveEvents(pDev, sourceid, prevSpriteWin,
+ newSpriteWin, NotifyNormal);
+ }
+ /* set pSprite->win after ActivateEnterGrab, otherwise
+ sprite window == grab_window and no enter/leave events are
+ sent. */
+ pSprite->win = newSpriteWin;
+ PostNewCursor(pDev);
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ * Windows have restructured, we need to update the sprite position and the
+ * sprite's cursor.
+ */
+void
+WindowsRestructured(void)
+{
+ DeviceIntPtr pDev = inputInfo.devices;
+ while(pDev)
+ {
+ if (IsMaster(pDev) || !pDev->u.master)
+ CheckMotion(NULL, pDev);
+ pDev = pDev->next;
+ }
+}
+
+#ifdef PANORAMIX
+/* This was added to support reconfiguration under Xdmx. The problem is
+ * that if the 0th screen (i.e., WindowTable[0]) is moved to an origin
+ * other than 0,0, the information in the private sprite structure must
+ * be updated accordingly, or XYToWindow (and other routines) will not
+ * compute correctly. */
+void ReinitializeRootWindow(WindowPtr win, int xoff, int yoff)
+{
+ GrabPtr grab;
+ DeviceIntPtr pDev;
+ SpritePtr pSprite;
+
+ if (noPanoramiXExtension) return;
+
+ pDev = inputInfo.devices;
+ while(pDev)
+ {
+ if (DevHasCursor(pDev))
+ {
+ pSprite = pDev->spriteInfo->sprite;
+ pSprite->hot.x -= xoff;
+ pSprite->hot.y -= yoff;
+
+ pSprite->hotPhys.x -= xoff;
+ pSprite->hotPhys.y -= yoff;
+
+ pSprite->hotLimits.x1 -= xoff;
+ pSprite->hotLimits.y1 -= yoff;
+ pSprite->hotLimits.x2 -= xoff;
+ pSprite->hotLimits.y2 -= yoff;
+
+ if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg1))
+ REGION_TRANSLATE(pSprite->screen, &pSprite->Reg1, xoff, yoff);
+ if (REGION_NOTEMPTY(pSprite->screen, &pSprite->Reg2))
+ REGION_TRANSLATE(pSprite->screen, &pSprite->Reg2, xoff, yoff);
+
+ /* FIXME: if we call ConfineCursorToWindow, must we do anything else? */
+ if ((grab = pDev->deviceGrab.grab) && grab->confineTo) {
+ if (grab->confineTo->drawable.pScreen
+ != pSprite->hotPhys.pScreen)
+ pSprite->hotPhys.x = pSprite->hotPhys.y = 0;
+ ConfineCursorToWindow(pDev, grab->confineTo, TRUE, TRUE);
+ } else
+ ConfineCursorToWindow(
+ pDev,
+ WindowTable[pSprite->hotPhys.pScreen->myNum],
+ TRUE, FALSE);
+
+ }
+ pDev = pDev->next;
+ }
+}
+#endif
+
+/**
+ * Initialize a sprite for the given device and set it to some sane values. If
+ * the device already has a sprite alloc'd, don't realloc but just reset to
+ * default values.
+ * If a window is supplied, the sprite will be initialized with the window's
+ * cursor and positioned in the center of the window's screen. The root window
+ * is a good choice to pass in here.
+ *
+ * It's a good idea to call it only for pointer devices, unless you have a
+ * really talented keyboard.
+ *
+ * @param pDev The device to initialize.
+ * @param pWin The window where to generate the sprite in.
+ *
+ */
+void
+InitializeSprite(DeviceIntPtr pDev, WindowPtr pWin)
+{
+ SpritePtr pSprite;
+ ScreenPtr pScreen;
+
+ if (!pDev->spriteInfo->sprite)
+ {
+ DeviceIntPtr it;
+
+ pDev->spriteInfo->sprite = (SpritePtr)xcalloc(1, sizeof(SpriteRec));
+ if (!pDev->spriteInfo->sprite)
+ FatalError("InitializeSprite: failed to allocate sprite struct");
+
+ /* We may have paired another device with this device before our
+ * device had a actual sprite. We need to check for this and reset the
+ * sprite field for all paired devices.
+ *
+ * The VCK is always paired with the VCP before the VCP has a sprite.
+ */
+ for (it = inputInfo.devices; it; it = it->next)
+ {
+ if (it->spriteInfo->paired == pDev)
+ it->spriteInfo->sprite = pDev->spriteInfo->sprite;
+ }
+ if (inputInfo.keyboard->spriteInfo->paired == pDev)
+ inputInfo.keyboard->spriteInfo->sprite = pDev->spriteInfo->sprite;
+ }
+
+ pSprite = pDev->spriteInfo->sprite;
+ pDev->spriteInfo->spriteOwner = TRUE;
+
+ pScreen = (pWin) ? pWin->drawable.pScreen : (ScreenPtr)NULL;
+ pSprite->hot.pScreen = pScreen;
+ pSprite->hotPhys.pScreen = pScreen;
+ if (pScreen)
+ {
+ pSprite->hotPhys.x = pScreen->width / 2;
+ pSprite->hotPhys.y = pScreen->height / 2;
+ pSprite->hotLimits.x2 = pScreen->width;
+ pSprite->hotLimits.y2 = pScreen->height;
+ }
+
+ pSprite->hot = pSprite->hotPhys;
+ pSprite->win = pWin;
+
+ if (pWin)
+ {
+ pSprite->current = wCursor(pWin);
+ pSprite->current->refcnt++;
+ pSprite->spriteTrace = (WindowPtr *)xcalloc(1, 32*sizeof(WindowPtr));
+ if (!pSprite->spriteTrace)
+ FatalError("Failed to allocate spriteTrace");
+ pSprite->spriteTraceSize = 32;
+
+ RootWindow(pDev) = pWin;
+ pSprite->spriteTraceGood = 1;
+
+ pSprite->pEnqueueScreen = pScreen;
+ pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
+
+ } else {
+ pSprite->current = NullCursor;
+ pSprite->spriteTrace = NULL;
+ pSprite->spriteTraceSize = 0;
+ pSprite->spriteTraceGood = 0;
+ pSprite->pEnqueueScreen = screenInfo.screens[0];
+ pSprite->pDequeueScreen = pSprite->pEnqueueScreen;
+ }
+
+ if (pScreen)
+ {
+ (*pScreen->RealizeCursor) ( pDev, pScreen, pSprite->current);
+ (*pScreen->CursorLimits) ( pDev, pScreen, pSprite->current,
+ &pSprite->hotLimits, &pSprite->physLimits);
+ pSprite->confined = FALSE;
+
+ (*pScreen->ConstrainCursor) (pDev, pScreen,
+ &pSprite->physLimits);
+ (*pScreen->SetCursorPosition) (pDev, pScreen, pSprite->hot.x,
+ pSprite->hot.y,
+ FALSE);
+ (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
+ }
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
+ pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
+ pSprite->hotLimits.x2 = PanoramiXPixWidth - panoramiXdataPtr[0].x;
+ pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
+ pSprite->physLimits = pSprite->hotLimits;
+ pSprite->confineWin = NullWindow;
+ pSprite->hotShape = NullRegion;
+ pSprite->screen = pScreen;
+ /* gotta UNINIT these someplace */
+ REGION_NULL(pScreen, &pSprite->Reg1);
+ REGION_NULL(pScreen, &pSprite->Reg2);
+ }
+#endif
+}
+
+/**
+ * Update the mouse sprite info when the server switches from a pScreen to another.
+ * Otherwise, the pScreen of the mouse sprite is never updated when we switch
+ * from a pScreen to another. Never updating the pScreen of the mouse sprite
+ * implies that windows that are in pScreen whose pScreen->myNum >0 will never
+ * get pointer events. This is because in CheckMotion(), sprite.hotPhys.pScreen
+ * always points to the first pScreen it has been set by
+ * DefineInitialRootWindow().
+ *
+ * Calling this function is useful for use cases where the server
+ * has more than one pScreen.
+ * This function is similar to DefineInitialRootWindow() but it does not
+ * reset the mouse pointer position.
+ * @param win must be the new pScreen we are switching to.
+ */
+void
+UpdateSpriteForScreen(DeviceIntPtr pDev, ScreenPtr pScreen)
+{
+ SpritePtr pSprite = NULL;
+ WindowPtr win = NULL;
+ if (!pScreen)
+ return ;
+
+ if (!pDev->spriteInfo->sprite)
+ return;
+
+ pSprite = pDev->spriteInfo->sprite;
+
+ win = WindowTable[pScreen->myNum];
+
+ pSprite->hotPhys.pScreen = pScreen;
+ pSprite->hot = pSprite->hotPhys;
+ pSprite->hotLimits.x2 = pScreen->width;
+ pSprite->hotLimits.y2 = pScreen->height;
+ pSprite->win = win;
+ pSprite->current = wCursor (win);
+ pSprite->current->refcnt++;
+ pSprite->spriteTraceGood = 1;
+ pSprite->spriteTrace[0] = win;
+ (*pScreen->CursorLimits) (pDev,
+ pScreen,
+ pSprite->current,
+ &pSprite->hotLimits,
+ &pSprite->physLimits);
+ pSprite->confined = FALSE;
+ (*pScreen->ConstrainCursor) (pDev, pScreen, &pSprite->physLimits);
+ (*pScreen->DisplayCursor) (pDev, pScreen, pSprite->current);
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ pSprite->hotLimits.x1 = -panoramiXdataPtr[0].x;
+ pSprite->hotLimits.y1 = -panoramiXdataPtr[0].y;
+ pSprite->hotLimits.x2 = PanoramiXPixWidth - panoramiXdataPtr[0].x;
+ pSprite->hotLimits.y2 = PanoramiXPixHeight - panoramiXdataPtr[0].y;
+ pSprite->physLimits = pSprite->hotLimits;
+ pSprite->screen = pScreen;
+ }
+#endif
+}
+
+/*
+ * This does not take any shortcuts, and even ignores its argument, since
+ * it does not happen very often, and one has to walk up the tree since
+ * this might be a newly instantiated cursor for an intermediate window
+ * between the one the pointer is in and the one that the last cursor was
+ * instantiated from.
+ */
+void
+WindowHasNewCursor(WindowPtr pWin)
+{
+ DeviceIntPtr pDev;
+
+ for(pDev = inputInfo.devices; pDev; pDev = pDev->next)
+ if (DevHasCursor(pDev))
+ PostNewCursor(pDev);
+}
+
+void
+NewCurrentScreen(DeviceIntPtr pDev, ScreenPtr newScreen, int x, int y)
+{
+ SpritePtr pSprite = pDev->spriteInfo->sprite;
+
+ pSprite->hotPhys.x = x;
+ pSprite->hotPhys.y = y;
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ pSprite->hotPhys.x += panoramiXdataPtr[newScreen->myNum].x -
+ panoramiXdataPtr[0].x;
+ pSprite->hotPhys.y += panoramiXdataPtr[newScreen->myNum].y -
+ panoramiXdataPtr[0].y;
+ if (newScreen != pSprite->screen) {
+ pSprite->screen = newScreen;
+ /* Make sure we tell the DDX to update its copy of the screen */
+ if(pSprite->confineWin)
+ XineramaConfineCursorToWindow(pDev,
+ pSprite->confineWin, TRUE);
+ else
+ XineramaConfineCursorToWindow(pDev, WindowTable[0], TRUE);
+ /* if the pointer wasn't confined, the DDX won't get
+ told of the pointer warp so we reposition it here */
+ if(!syncEvents.playingEvents)
+ (*pSprite->screen->SetCursorPosition)(
+ pDev,
+ pSprite->screen,
+ pSprite->hotPhys.x + panoramiXdataPtr[0].x -
+ panoramiXdataPtr[pSprite->screen->myNum].x,
+ pSprite->hotPhys.y + panoramiXdataPtr[0].y -
+ panoramiXdataPtr[pSprite->screen->myNum].y, FALSE);
+ }
+ } else
+#endif
+ if (newScreen != pSprite->hotPhys.pScreen)
+ ConfineCursorToWindow(pDev, WindowTable[newScreen->myNum],
+ TRUE, FALSE);
+}
+
+#ifdef PANORAMIX
+
+static Bool
+XineramaPointInWindowIsVisible(
+ WindowPtr pWin,
+ int x,
+ int y
+)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ BoxRec box;
+ int i, xoff, yoff;
+
+ if (!pWin->realized) return FALSE;
+
+ if (POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box))
+ return TRUE;
+
+ if(!XineramaSetWindowPntrs(inputInfo.pointer, pWin)) return FALSE;
+
+ xoff = x + panoramiXdataPtr[0].x;
+ yoff = y + panoramiXdataPtr[0].y;
+
+ for(i = 1; i < PanoramiXNumScreens; i++) {
+ pWin = inputInfo.pointer->spriteInfo->sprite->windows[i];
+ pScreen = pWin->drawable.pScreen;
+ x = xoff - panoramiXdataPtr[i].x;
+ y = yoff - panoramiXdataPtr[i].y;
+
+ if(POINT_IN_REGION(pScreen, &pWin->borderClip, x, y, &box)
+ && (!wInputShape(pWin) ||
+ POINT_IN_REGION(pWin->drawable.pScreen,
+ wInputShape(pWin),
+ x - pWin->drawable.x,
+ y - pWin->drawable.y, &box)))
+ return TRUE;
+
+ }
+
+ return FALSE;
+}
+
+static int
+XineramaWarpPointer(ClientPtr client)
+{
+ WindowPtr dest = NULL;
+ int x, y, rc;
+ SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite;
+
+ REQUEST(xWarpPointerReq);
+
+
+ if (stuff->dstWid != None) {
+ rc = dixLookupWindow(&dest, stuff->dstWid, client, DixReadAccess);
+ if (rc != Success)
+ return rc;
+ }
+ x = pSprite->hotPhys.x;
+ y = pSprite->hotPhys.y;
+
+ if (stuff->srcWid != None)
+ {
+ int winX, winY;
+ XID winID = stuff->srcWid;
+ WindowPtr source;
+
+ rc = dixLookupWindow(&source, winID, client, DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ winX = source->drawable.x;
+ winY = source->drawable.y;
+ if(source == WindowTable[0]) {
+ winX -= panoramiXdataPtr[0].x;
+ winY -= panoramiXdataPtr[0].y;
+ }
+ if (x < winX + stuff->srcX ||
+ y < winY + stuff->srcY ||
+ (stuff->srcWidth != 0 &&
+ winX + stuff->srcX + (int)stuff->srcWidth < x) ||
+ (stuff->srcHeight != 0 &&
+ winY + stuff->srcY + (int)stuff->srcHeight < y) ||
+ !XineramaPointInWindowIsVisible(source, x, y))
+ return Success;
+ }
+ if (dest) {
+ x = dest->drawable.x;
+ y = dest->drawable.y;
+ if(dest == WindowTable[0]) {
+ x -= panoramiXdataPtr[0].x;
+ y -= panoramiXdataPtr[0].y;
+ }
+ }
+
+ x += stuff->dstX;
+ y += stuff->dstY;
+
+ if (x < pSprite->physLimits.x1)
+ x = pSprite->physLimits.x1;
+ else if (x >= pSprite->physLimits.x2)
+ x = pSprite->physLimits.x2 - 1;
+ if (y < pSprite->physLimits.y1)
+ y = pSprite->physLimits.y1;
+ else if (y >= pSprite->physLimits.y2)
+ y = pSprite->physLimits.y2 - 1;
+ if (pSprite->hotShape)
+ ConfineToShape(PickPointer(client), pSprite->hotShape, &x, &y);
+
+ XineramaSetCursorPosition(PickPointer(client), x, y, TRUE);
+
+ return Success;
+}
+
+#endif
+
+
+/**
+ * Server-side protocol handling for WarpPointer request.
+ * Warps the cursor position to the coordinates given in the request.
+ */
+int
+ProcWarpPointer(ClientPtr client)
+{
+ WindowPtr dest = NULL;
+ int x, y, rc;
+ ScreenPtr newScreen;
+ DeviceIntPtr dev, tmp;
+ SpritePtr pSprite;
+
+ REQUEST(xWarpPointerReq);
+ REQUEST_SIZE_MATCH(xWarpPointerReq);
+
+ dev = PickPointer(client);
+
+ for (tmp = inputInfo.devices; tmp; tmp = tmp->next) {
+ if ((tmp == dev) || (!IsMaster(tmp) && tmp->u.master == dev)) {
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixWriteAccess);
+ if (rc != Success)
+ return rc;
+ }
+ }
+
+ if (dev->u.lastSlave)
+ dev = dev->u.lastSlave;
+ pSprite = dev->spriteInfo->sprite;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension)
+ return XineramaWarpPointer(client);
+#endif
+
+ if (stuff->dstWid != None) {
+ rc = dixLookupWindow(&dest, stuff->dstWid, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+ x = pSprite->hotPhys.x;
+ y = pSprite->hotPhys.y;
+
+ if (stuff->srcWid != None)
+ {
+ int winX, winY;
+ XID winID = stuff->srcWid;
+ WindowPtr source;
+
+ rc = dixLookupWindow(&source, winID, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ winX = source->drawable.x;
+ winY = source->drawable.y;
+ if (source->drawable.pScreen != pSprite->hotPhys.pScreen ||
+ x < winX + stuff->srcX ||
+ y < winY + stuff->srcY ||
+ (stuff->srcWidth != 0 &&
+ winX + stuff->srcX + (int)stuff->srcWidth < x) ||
+ (stuff->srcHeight != 0 &&
+ winY + stuff->srcY + (int)stuff->srcHeight < y) ||
+ !PointInWindowIsVisible(source, x, y))
+ return Success;
+ }
+ if (dest)
+ {
+ x = dest->drawable.x;
+ y = dest->drawable.y;
+ newScreen = dest->drawable.pScreen;
+ } else
+ newScreen = pSprite->hotPhys.pScreen;
+
+ x += stuff->dstX;
+ y += stuff->dstY;
+
+ if (x < 0)
+ x = 0;
+ else if (x >= newScreen->width)
+ x = newScreen->width - 1;
+ if (y < 0)
+ y = 0;
+ else if (y >= newScreen->height)
+ y = newScreen->height - 1;
+
+ if (newScreen == pSprite->hotPhys.pScreen)
+ {
+ if (x < pSprite->physLimits.x1)
+ x = pSprite->physLimits.x1;
+ else if (x >= pSprite->physLimits.x2)
+ x = pSprite->physLimits.x2 - 1;
+ if (y < pSprite->physLimits.y1)
+ y = pSprite->physLimits.y1;
+ else if (y >= pSprite->physLimits.y2)
+ y = pSprite->physLimits.y2 - 1;
+ if (pSprite->hotShape)
+ ConfineToShape(dev, pSprite->hotShape, &x, &y);
+ (*newScreen->SetCursorPosition)(dev, newScreen, x, y, TRUE);
+ }
+ else if (!PointerConfinedToScreen(dev))
+ {
+ NewCurrentScreen(dev, newScreen, x, y);
+ }
+ return Success;
+}
+
+static Bool
+BorderSizeNotEmpty(DeviceIntPtr pDev, WindowPtr pWin)
+{
+ if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->hotPhys.pScreen, &pWin->borderSize))
+ return TRUE;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && XineramaSetWindowPntrs(pDev, pWin)) {
+ int i;
+
+ for(i = 1; i < PanoramiXNumScreens; i++) {
+ if(REGION_NOTEMPTY(pDev->spriteInfo->sprite->screen,
+ &pDev->spriteInfo->sprite->windows[i]->borderSize))
+ return TRUE;
+ }
+ }
+#endif
+ return FALSE;
+}
+
+/**
+ * "CheckPassiveGrabsOnWindow" checks to see if the event passed in causes a
+ * passive grab set on the window to be activated.
+ * If a passive grab is activated, the event will be delivered to the client.
+ *
+ * @param pWin The window that may be subject to a passive grab.
+ * @param device Device that caused the event.
+ * @param event The current device event.
+ * @param checkCore Check for core grabs too.
+ */
+
+static Bool
+CheckPassiveGrabsOnWindow(
+ WindowPtr pWin,
+ DeviceIntPtr device,
+ DeviceEvent *event,
+ BOOL checkCore)
+{
+ GrabPtr grab = wPassiveGrabs(pWin);
+ GrabRec tempGrab;
+ GrabInfoPtr grabinfo;
+#define CORE_MATCH 0x1
+#define XI_MATCH 0x2
+#define XI2_MATCH 0x4
+ int match = 0;
+
+ if (device->deviceGrab.grab)
+ return FALSE;
+
+ if (!grab)
+ return FALSE;
+ /* Fill out the grab details, but leave the type for later before
+ * comparing */
+ tempGrab.window = pWin;
+ tempGrab.device = device;
+ tempGrab.detail.exact = event->detail.key;
+ tempGrab.detail.pMask = NULL;
+ tempGrab.modifiersDetail.pMask = NULL;
+ tempGrab.next = NULL;
+ for (; grab; grab = grab->next)
+ {
+ DeviceIntPtr gdev;
+ XkbSrvInfoPtr xkbi = NULL;
+ Mask mask = 0;
+
+ gdev= grab->modifierDevice;
+ if (grab->grabtype == GRABTYPE_CORE)
+ {
+ if (IsPointerDevice(device))
+ gdev = GetPairedDevice(device);
+ else
+ gdev = device;
+ } else if (grab->grabtype == GRABTYPE_XI2)
+ {
+ /* if the device is an attached slave device, gdev must be the
+ * attached master keyboard. Since the slave may have been
+ * reattached after the grab, the modifier device may not be the
+ * same. */
+ if (!IsMaster(grab->device) && device->u.master)
+ gdev = GetMaster(device, MASTER_KEYBOARD);
+ }
+
+
+ if (gdev && gdev->key)
+ xkbi= gdev->key->xkbInfo;
+ tempGrab.modifierDevice = grab->modifierDevice;
+ tempGrab.modifiersDetail.exact = xkbi ? xkbi->state.grab_mods : 0;
+
+ /* Check for XI2 and XI grabs first */
+ tempGrab.type = GetXI2Type((InternalEvent*)event);
+ tempGrab.grabtype = GRABTYPE_XI2;
+ if (GrabMatchesSecond(&tempGrab, grab, FALSE))
+ match = XI2_MATCH;
+
+ tempGrab.detail.exact = event->detail.key;
+ if (!match)
+ {
+ tempGrab.type = GetXIType((InternalEvent*)event);
+ tempGrab.grabtype = GRABTYPE_XI;
+ if (GrabMatchesSecond(&tempGrab, grab, FALSE))
+ match = XI_MATCH;
+ }
+
+ /* Check for a core grab (ignore the device when comparing) */
+ if (!match && checkCore)
+ {
+ tempGrab.grabtype = GRABTYPE_CORE;
+ if ((tempGrab.type = GetCoreType((InternalEvent*)event)) &&
+ (GrabMatchesSecond(&tempGrab, grab, TRUE)))
+ match = CORE_MATCH;
+ }
+
+ if (match && (!grab->confineTo ||
+ (grab->confineTo->realized &&
+ BorderSizeNotEmpty(device, grab->confineTo))))
+ {
+ int rc, count = 0;
+ xEvent *xE = NULL;
+ xEvent core;
+
+ event->corestate &= 0x1f00;
+ event->corestate |= tempGrab.modifiersDetail.exact & (~0x1f00);
+ grabinfo = &device->deviceGrab;
+ /* In some cases a passive core grab may exist, but the client
+ * already has a core grab on some other device. In this case we
+ * must not get the grab, otherwise we may never ungrab the
+ * device.
+ */
+
+ if (grab->grabtype == GRABTYPE_CORE)
+ {
+ DeviceIntPtr other;
+ BOOL interfering = FALSE;
+
+ /* A passive grab may have been created for a different device
+ than it is assigned to at this point in time.
+ Update the grab's device and modifier device to reflect the
+ current state.
+ Since XGrabDeviceButton requires to specify the
+ modifierDevice explicitly, we don't override this choice.
+ */
+ if (tempGrab.type < GenericEvent)
+ {
+ grab->device = device;
+ grab->modifierDevice = GetPairedDevice(device);
+ }
+
+ for (other = inputInfo.devices; other; other = other->next)
+ {
+ GrabPtr othergrab = other->deviceGrab.grab;
+ if (othergrab && othergrab->grabtype == GRABTYPE_CORE &&
+ SameClient(grab, rClient(othergrab)) &&
+ ((IsPointerDevice(grab->device) &&
+ IsPointerDevice(othergrab->device)) ||
+ (IsKeyboardDevice(grab->device) &&
+ IsKeyboardDevice(othergrab->device))))
+ {
+ interfering = TRUE;
+ break;
+ }
+ }
+ if (interfering)
+ continue;
+ }
+
+
+ if (match & CORE_MATCH)
+ {
+ rc = EventToCore((InternalEvent*)event, &core);
+ if (rc != Success)
+ {
+ if (rc != BadMatch)
+ ErrorF("[dix] %s: core conversion failed in CPGFW "
+ "(%d, %d).\n", device->name, event->type, rc);
+ continue;
+ }
+ xE = &core;
+ count = 1;
+ mask = grab->eventMask;
+ } else if (match & XI2_MATCH)
+ {
+ rc = EventToXI2((InternalEvent*)event, &xE);
+ if (rc != Success)
+ {
+ if (rc != BadMatch)
+ ErrorF("[dix] %s: XI2 conversion failed in CPGFW "
+ "(%d, %d).\n", device->name, event->type, rc);
+ continue;
+ }
+ count = 1;
+
+ /* FIXME: EventToXI2 returns NULL for enter events, so
+ * dereferencing the event is bad. Internal event types are
+ * aligned with core events, so the else clause is valid.
+ * long-term we should use internal events for enter/focus
+ * as well */
+ if (xE)
+ mask = grab->xi2mask[device->id][((xGenericEvent*)xE)->evtype/8];
+ else if (event->type == XI_Enter || event->type == XI_FocusIn)
+ mask = grab->xi2mask[device->id][event->type/8];
+ } else
+ {
+ rc = EventToXI((InternalEvent*)event, &xE, &count);
+ if (rc != Success)
+ {
+ if (rc != BadMatch)
+ ErrorF("[dix] %s: XI conversion failed in CPGFW "
+ "(%d, %d).\n", device->name, event->type, rc);
+ continue;
+ }
+ mask = grab->eventMask;
+ }
+
+ (*grabinfo->ActivateGrab)(device, grab, currentTime, TRUE);
+
+ if (xE)
+ {
+ FixUpEventFromWindow(device, xE, grab->window, None, TRUE);
+
+ TryClientEvents(rClient(grab), device, xE, count, mask,
+ GetEventFilter(device, xE), grab);
+ }
+
+ if (grabinfo->sync.state == FROZEN_NO_EVENT)
+ {
+ if (!grabinfo->sync.event)
+ grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
+ *grabinfo->sync.event = *event;
+ grabinfo->sync.state = FROZEN_WITH_EVENT;
+ }
+
+ if (match & (XI_MATCH | XI2_MATCH))
+ xfree(xE); /* on core match xE == &core */
+ return TRUE;
+ }
+ }
+ return FALSE;
+#undef CORE_MATCH
+#undef XI_MATCH
+#undef XI2_MATCH
+}
+
+/**
+ * CheckDeviceGrabs handles both keyboard and pointer events that may cause
+ * a passive grab to be activated.
+ *
+ * If the event is a keyboard event, the ancestors of the focus window are
+ * traced down and tried to see if they have any passive grabs to be
+ * activated. If the focus window itself is reached and it's descendants
+ * contain the pointer, the ancestors of the window that the pointer is in
+ * are then traced down starting at the focus window, otherwise no grabs are
+ * activated.
+ * If the event is a pointer event, the ancestors of the window that the
+ * pointer is in are traced down starting at the root until CheckPassiveGrabs
+ * causes a passive grab to activate or all the windows are
+ * tried. PRH
+ *
+ * If a grab is activated, the event has been sent to the client already!
+ *
+ * The event we pass in must always be an XI event. From this, we then emulate
+ * the core event and then check for grabs.
+ *
+ * @param device The device that caused the event.
+ * @param xE The event to handle (Device{Button|Key}Press).
+ * @param count Number of events in list.
+ * @return TRUE if a grab has been activated or false otherwise.
+*/
+
+Bool
+CheckDeviceGrabs(DeviceIntPtr device, DeviceEvent *event, int checkFirst)
+{
+ int i;
+ WindowPtr pWin = NULL;
+ FocusClassPtr focus = IsPointerEvent((InternalEvent*)event) ? NULL : device->focus;
+ BOOL sendCore = (IsMaster(device) && device->coreEvents);
+
+ if (event->type != ET_ButtonPress &&
+ event->type != ET_KeyPress)
+ return FALSE;
+
+ if (event->type == ET_ButtonPress
+ && (device->button->buttonsDown != 1))
+ return FALSE;
+
+ i = checkFirst;
+
+ if (focus)
+ {
+ for (; i < focus->traceGood; i++)
+ {
+ pWin = focus->trace[i];
+ if (pWin->optional &&
+ CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
+ return TRUE;
+ }
+
+ if ((focus->win == NoneWin) ||
+ (i >= device->spriteInfo->sprite->spriteTraceGood) ||
+ ((i > checkFirst) &&
+ (pWin != device->spriteInfo->sprite->spriteTrace[i-1])))
+ return FALSE;
+ }
+
+ for (; i < device->spriteInfo->sprite->spriteTraceGood; i++)
+ {
+ pWin = device->spriteInfo->sprite->spriteTrace[i];
+ if (pWin->optional &&
+ CheckPassiveGrabsOnWindow(pWin, device, event, sendCore))
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+/**
+ * Called for keyboard events to deliver event to whatever client owns the
+ * focus.
+ *
+ * The event is delivered to the keyboard's focus window, the root window or
+ * to the window owning the input focus.
+ *
+ * @param keybd The keyboard originating the event.
+ * @param event The event, not yet in wire format.
+ * @param window Window underneath the sprite.
+ */
+void
+DeliverFocusedEvent(DeviceIntPtr keybd, InternalEvent *event, WindowPtr window)
+{
+ DeviceIntPtr ptr;
+ WindowPtr focus = keybd->focus->win;
+ BOOL sendCore = (IsMaster(keybd) && keybd->coreEvents);
+ xEvent core;
+ xEvent *xE = NULL, *xi2 = NULL;
+ int count, rc;
+ int deliveries = 0;
+
+ if (focus == FollowKeyboardWin)
+ focus = inputInfo.keyboard->focus->win;
+ if (!focus)
+ return;
+ if (focus == PointerRootWin)
+ {
+ DeliverDeviceEvents(window, event, NullGrab, NullWindow, keybd);
+ return;
+ }
+ if ((focus == window) || IsParent(focus, window))
+ {
+ if (DeliverDeviceEvents(window, event, NullGrab, focus, keybd))
+ return;
+ }
+
+ /* just deliver it to the focus window */
+ ptr = GetPairedDevice(keybd);
+
+
+ rc = EventToXI2(event, &xi2);
+ if (rc == Success)
+ {
+ /* XXX: XACE */
+ int filter = GetEventFilter(keybd, xi2);
+ FixUpEventFromWindow(ptr, xi2, focus, None, FALSE);
+ deliveries = DeliverEventsToWindow(keybd, focus, xi2, 1,
+ filter, NullGrab);
+ if (deliveries > 0)
+ goto unwind;
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI2 conversion failed in DFE (%d, %d). Skipping delivery.\n",
+ keybd->name, event->any.type, rc);
+
+ rc = EventToXI(event, &xE, &count);
+ if (rc == Success &&
+ XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, xE, count) == Success)
+ {
+ FixUpEventFromWindow(ptr, xE, focus, None, FALSE);
+ deliveries = DeliverEventsToWindow(keybd, focus, xE, count,
+ GetEventFilter(keybd, xE),
+ NullGrab);
+
+ if (deliveries > 0)
+ goto unwind;
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI conversion failed in DFE (%d, %d). Skipping delivery.\n",
+ keybd->name, event->any.type, rc);
+
+ if (sendCore)
+ {
+ rc = EventToCore(event, &core);
+ if (rc == Success) {
+ if (XaceHook(XACE_SEND_ACCESS, NULL, keybd, focus, &core, 1) == Success) {
+ FixUpEventFromWindow(keybd, &core, focus, None, FALSE);
+ deliveries = DeliverEventsToWindow(keybd, focus, &core, 1,
+ GetEventFilter(keybd, &core),
+ NullGrab);
+ }
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: core conversion failed DFE (%d, %d). Skipping delivery.\n",
+ keybd->name, event->any.type, rc);
+ }
+
+unwind:
+ if (xE)
+ xfree(xE);
+ if (xi2)
+ xfree(xi2);
+ return;
+}
+
+/**
+ * Deliver an event from a device that is currently grabbed. Uses
+ * DeliverDeviceEvents() for further delivery if a ownerEvents is set on the
+ * grab. If not, TryClientEvents() is used.
+ *
+ * @param deactivateGrab True if the device's grab should be deactivated.
+ */
+void
+DeliverGrabbedEvent(InternalEvent *event, DeviceIntPtr thisDev,
+ Bool deactivateGrab)
+{
+ GrabPtr grab;
+ GrabInfoPtr grabinfo;
+ int deliveries = 0;
+ DeviceIntPtr dev;
+ SpritePtr pSprite = thisDev->spriteInfo->sprite;
+ BOOL sendCore = FALSE;
+ int rc, count = 0;
+ xEvent *xi = NULL;
+ xEvent *xi2 = NULL;
+
+ grabinfo = &thisDev->deviceGrab;
+ grab = grabinfo->grab;
+
+ if (grab->ownerEvents)
+ {
+ WindowPtr focus;
+
+ /* Hack: Some pointer device have a focus class. So we need to check
+ * for the type of event, to see if we really want to deliver it to
+ * the focus window. For pointer events, the answer is no.
+ */
+ if (IsPointerEvent(event))
+ focus = PointerRootWin;
+ else if (thisDev->focus)
+ {
+ focus = thisDev->focus->win;
+ if (focus == FollowKeyboardWin)
+ focus = inputInfo.keyboard->focus->win;
+ }
+ else
+ focus = PointerRootWin;
+ if (focus == PointerRootWin)
+ deliveries = DeliverDeviceEvents(pSprite->win, event, grab,
+ NullWindow, thisDev);
+ else if (focus && (focus == pSprite->win ||
+ IsParent(focus, pSprite->win)))
+ deliveries = DeliverDeviceEvents(pSprite->win, event, grab, focus,
+ thisDev);
+ else if (focus)
+ deliveries = DeliverDeviceEvents(focus, event, grab, focus,
+ thisDev);
+ }
+ if (!deliveries)
+ {
+ Mask mask;
+
+ /* XXX: In theory, we could pass the internal events through to
+ * everything and only convert just before hitting the wire. We can't
+ * do that yet, so DGE is the last stop for internal events. From here
+ * onwards, we deal with core/XI events.
+ */
+
+ mask = grab->eventMask;
+
+ sendCore = (IsMaster(thisDev) && thisDev->coreEvents);
+ /* try core event */
+ if (sendCore && grab->grabtype == GRABTYPE_CORE)
+ {
+ xEvent core;
+
+ rc = EventToCore(event, &core);
+ if (rc == Success)
+ {
+ FixUpEventFromWindow(thisDev, &core, grab->window,
+ None, TRUE);
+ if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
+ grab->window, &core, 1) ||
+ XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
+ grab->window, &core, 1))
+ deliveries = 1; /* don't send, but pretend we did */
+ else if (!IsInterferingGrab(rClient(grab), thisDev, &core))
+ {
+ deliveries = TryClientEvents(rClient(grab), thisDev,
+ &core, 1, mask,
+ GetEventFilter(thisDev, &core),
+ grab);
+ }
+ } else if (rc != BadMatch)
+ ErrorF("[dix] DeliverGrabbedEvent. Core conversion failed.\n");
+ }
+
+ if (!deliveries)
+ {
+ rc = EventToXI2(event, &xi2);
+ if (rc == Success)
+ {
+ int evtype = ((xGenericEvent*)xi2)->evtype;
+ mask = grab->xi2mask[XIAllDevices][evtype/8] |
+ grab->xi2mask[XIAllMasterDevices][evtype/8] |
+ grab->xi2mask[thisDev->id][evtype/8];
+ /* try XI2 event */
+ FixUpEventFromWindow(thisDev, xi2, grab->window, None, TRUE);
+ /* XXX: XACE */
+ deliveries = TryClientEvents(rClient(grab), thisDev, xi2, 1, mask,
+ GetEventFilter(thisDev, xi2), grab);
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI2 conversion failed in DGE (%d, %d). Skipping delivery.\n",
+ thisDev->name, event->any.type, rc);
+ }
+
+ if (!deliveries)
+ {
+ rc = EventToXI(event, &xi, &count);
+ if (rc == Success)
+ {
+ /* try XI event */
+ if (grabinfo->fromPassiveGrab &&
+ grabinfo->implicitGrab)
+ mask = grab->deviceMask;
+ else
+ mask = grab->eventMask;
+
+ FixUpEventFromWindow(thisDev, xi, grab->window,
+ None, TRUE);
+
+ if (XaceHook(XACE_SEND_ACCESS, 0, thisDev,
+ grab->window, xi, count) ||
+ XaceHook(XACE_RECEIVE_ACCESS, rClient(grab),
+ grab->window, xi, count))
+ deliveries = 1; /* don't send, but pretend we did */
+ else
+ {
+ deliveries =
+ TryClientEvents(rClient(grab), thisDev,
+ xi, count,
+ mask,
+ GetEventFilter(thisDev, xi),
+ grab);
+ }
+ } else if (rc != BadMatch)
+ ErrorF("[dix] %s: XI conversion failed in DGE (%d, %d). Skipping delivery.\n",
+ thisDev->name, event->any.type, rc);
+ }
+
+ if (deliveries && (event->any.type == ET_Motion))
+ thisDev->valuator->motionHintWindow = grab->window;
+ }
+ if (deliveries && !deactivateGrab && event->any.type != ET_Motion)
+ {
+ switch (grabinfo->sync.state)
+ {
+ case FREEZE_BOTH_NEXT_EVENT:
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev == thisDev)
+ continue;
+ FreezeThaw(dev, TRUE);
+ if ((dev->deviceGrab.sync.state == FREEZE_BOTH_NEXT_EVENT) &&
+ (CLIENT_BITS(grab->resource) ==
+ CLIENT_BITS(dev->deviceGrab.sync.other->resource)))
+ dev->deviceGrab.sync.state = FROZEN_NO_EVENT;
+ else
+ dev->deviceGrab.sync.other = grab;
+ }
+ /* fall through */
+ case FREEZE_NEXT_EVENT:
+ grabinfo->sync.state = FROZEN_WITH_EVENT;
+ FreezeThaw(thisDev, TRUE);
+ if (!grabinfo->sync.event)
+ grabinfo->sync.event = xcalloc(1, sizeof(InternalEvent));
+ *grabinfo->sync.event = event->device_event;
+ break;
+ }
+ }
+
+ if (xi)
+ xfree(xi);
+ if (xi2)
+ xfree(xi2);
+}
+
+/* This function is used to set the key pressed or key released state -
+ this is only used when the pressing of keys does not cause
+ the device's processInputProc to be called, as in for example Mouse Keys.
+*/
+void
+FixKeyState (DeviceEvent *event, DeviceIntPtr keybd)
+{
+ int key, bit;
+ BYTE *kptr;
+ KeyClassPtr keyc = keybd->key;
+
+ key = event->detail.key;
+ kptr = &keyc->down[key >> 3];
+ bit = 1 << (key & 7);
+
+ if (event->type == ET_KeyPress) {
+ DebugF("FixKeyState: Key %d %s\n",key,
+ ((event->type == ET_KeyPress) ? "down" : "up"));
+ }
+
+ if (event->type == ET_KeyPress)
+ *kptr |= bit;
+ else if (event->type == ET_KeyRelease)
+ *kptr &= ~bit;
+ else
+ FatalError("Impossible keyboard event");
+}
+
+#define AtMostOneClient \
+ (SubstructureRedirectMask | ResizeRedirectMask | ButtonPressMask)
+#define ManagerMask \
+ (SubstructureRedirectMask | ResizeRedirectMask)
+
+/**
+ * Recalculate which events may be deliverable for the given window.
+ * Recalculated mask is used for quicker determination which events may be
+ * delivered to a window.
+ *
+ * The otherEventMasks on a WindowOptional is the combination of all event
+ * masks set by all clients on the window.
+ * deliverableEventMask is the combination of the eventMask and the
+ * otherEventMask plus the events that may be propagated to the parent.
+ *
+ * Traverses to siblings and parents of the window.
+ */
+void
+RecalculateDeliverableEvents(WindowPtr pWin)
+{
+ OtherClients *others;
+ WindowPtr pChild;
+
+ pChild = pWin;
+ while (1)
+ {
+ if (pChild->optional)
+ {
+ pChild->optional->otherEventMasks = 0;
+ for (others = wOtherClients(pChild); others; others = others->next)
+ {
+ pChild->optional->otherEventMasks |= others->mask;
+ }
+ }
+ pChild->deliverableEvents = pChild->eventMask|
+ wOtherEventMasks(pChild);
+ if (pChild->parent)
+ pChild->deliverableEvents |=
+ (pChild->parent->deliverableEvents &
+ ~wDontPropagateMask(pChild) & PropagateMask);
+ if (pChild->firstChild)
+ {
+ pChild = pChild->firstChild;
+ continue;
+ }
+ while (!pChild->nextSib && (pChild != pWin))
+ pChild = pChild->parent;
+ if (pChild == pWin)
+ break;
+ pChild = pChild->nextSib;
+ }
+}
+
+/**
+ *
+ * \param value must conform to DeleteType
+ */
+int
+OtherClientGone(pointer value, XID id)
+{
+ OtherClientsPtr other, prev;
+ WindowPtr pWin = (WindowPtr)value;
+
+ prev = 0;
+ for (other = wOtherClients(pWin); other; other = other->next)
+ {
+ if (other->resource == id)
+ {
+ if (prev)
+ prev->next = other->next;
+ else
+ {
+ if (!(pWin->optional->otherClients = other->next))
+ CheckWindowOptionalNeed (pWin);
+ }
+ xfree(other);
+ RecalculateDeliverableEvents(pWin);
+ return(Success);
+ }
+ prev = other;
+ }
+ FatalError("client not on event list");
+ /*NOTREACHED*/
+ return -1; /* make compiler happy */
+}
+
+int
+EventSelectForWindow(WindowPtr pWin, ClientPtr client, Mask mask)
+{
+ Mask check;
+ OtherClients * others;
+ DeviceIntPtr dev;
+ int rc;
+
+ if (mask & ~AllEventMasks)
+ {
+ client->errorValue = mask;
+ return BadValue;
+ }
+ check = (mask & ManagerMask);
+ if (check) {
+ rc = XaceHook(XACE_RESOURCE_ACCESS, client, pWin->drawable.id,
+ RT_WINDOW, pWin, RT_NONE, NULL, DixManageAccess);
+ if (rc != Success)
+ return rc;
+ }
+ check = (mask & AtMostOneClient);
+ if (check & (pWin->eventMask|wOtherEventMasks(pWin)))
+ { /* It is illegal for two different
+ clients to select on any of the
+ events for AtMostOneClient. However,
+ it is OK, for some client to
+ continue selecting on one of those
+ events. */
+ if ((wClient(pWin) != client) && (check & pWin->eventMask))
+ return BadAccess;
+ for (others = wOtherClients (pWin); others; others = others->next)
+ {
+ if (!SameClient(others, client) && (check & others->mask))
+ return BadAccess;
+ }
+ }
+ if (wClient (pWin) == client)
+ {
+ check = pWin->eventMask;
+ pWin->eventMask = mask;
+ }
+ else
+ {
+ for (others = wOtherClients (pWin); others; others = others->next)
+ {
+ if (SameClient(others, client))
+ {
+ check = others->mask;
+ if (mask == 0)
+ {
+ FreeResource(others->resource, RT_NONE);
+ return Success;
+ }
+ else
+ others->mask = mask;
+ goto maskSet;
+ }
+ }
+ check = 0;
+ if (!pWin->optional && !MakeWindowOptional (pWin))
+ return BadAlloc;
+ others = xalloc(sizeof(OtherClients));
+ if (!others)
+ return BadAlloc;
+ others->mask = mask;
+ others->resource = FakeClientID(client->index);
+ others->next = pWin->optional->otherClients;
+ pWin->optional->otherClients = others;
+ if (!AddResource(others->resource, RT_OTHERCLIENT, (pointer)pWin))
+ return BadAlloc;
+ }
+maskSet:
+ if ((mask & PointerMotionHintMask) && !(check & PointerMotionHintMask))
+ {
+ for (dev = inputInfo.devices; dev; dev = dev->next)
+ {
+ if (dev->valuator && dev->valuator->motionHintWindow == pWin)
+ dev->valuator->motionHintWindow = NullWindow;
+ }
+ }
+ RecalculateDeliverableEvents(pWin);
+ return Success;
+}
+
+int
+EventSuppressForWindow(WindowPtr pWin, ClientPtr client,
+ Mask mask, Bool *checkOptional)
+{
+ int i, free;
+
+ if (mask & ~PropagateMask)
+ {
+ client->errorValue = mask;
+ return BadValue;
+ }
+ if (pWin->dontPropagate)
+ DontPropagateRefCnts[pWin->dontPropagate]--;
+ if (!mask)
+ i = 0;
+ else
+ {
+ for (i = DNPMCOUNT, free = 0; --i > 0; )
+ {
+ if (!DontPropagateRefCnts[i])
+ free = i;
+ else if (mask == DontPropagateMasks[i])
+ break;
+ }
+ if (!i && free)
+ {
+ i = free;
+ DontPropagateMasks[i] = mask;
+ }
+ }
+ if (i || !mask)
+ {
+ pWin->dontPropagate = i;
+ if (i)
+ DontPropagateRefCnts[i]++;
+ if (pWin->optional)
+ {
+ pWin->optional->dontPropagateMask = mask;
+ *checkOptional = TRUE;
+ }
+ }
+ else
+ {
+ if (!pWin->optional && !MakeWindowOptional (pWin))
+ {
+ if (pWin->dontPropagate)
+ DontPropagateRefCnts[pWin->dontPropagate]++;
+ return BadAlloc;
+ }
+ pWin->dontPropagate = 0;
+ pWin->optional->dontPropagateMask = mask;
+ }
+ RecalculateDeliverableEvents(pWin);
+ return Success;
+}
+
+/**
+ * Assembles an EnterNotify or LeaveNotify and sends it event to the client.
+ * Uses the paired keyboard to get some additional information.
+ */
+void
+CoreEnterLeaveEvent(
+ DeviceIntPtr mouse,
+ int type,
+ int mode,
+ int detail,
+ WindowPtr pWin,
+ Window child)
+{
+ xEvent event;
+ WindowPtr focus;
+ DeviceIntPtr keybd;
+ GrabPtr grab = mouse->deviceGrab.grab;
+ Mask mask;
+
+ keybd = GetPairedDevice(mouse);
+
+ if ((pWin == mouse->valuator->motionHintWindow) &&
+ (detail != NotifyInferior))
+ mouse->valuator->motionHintWindow = NullWindow;
+ if (grab)
+ {
+ mask = (pWin == grab->window) ? grab->eventMask : 0;
+ if (grab->ownerEvents)
+ mask |= EventMaskForClient(pWin, rClient(grab));
+ }
+ else
+ {
+ mask = pWin->eventMask | wOtherEventMasks(pWin);
+ }
+
+ memset(&event, 0, sizeof(xEvent));
+ event.u.u.type = type;
+ event.u.u.detail = detail;
+ event.u.enterLeave.time = currentTime.milliseconds;
+ event.u.enterLeave.rootX = mouse->spriteInfo->sprite->hot.x;
+ event.u.enterLeave.rootY = mouse->spriteInfo->sprite->hot.y;
+ /* Counts on the same initial structure of crossing & button events! */
+ FixUpEventFromWindow(mouse, &event, pWin, None, FALSE);
+ /* Enter/Leave events always set child */
+ event.u.enterLeave.child = child;
+ event.u.enterLeave.flags = event.u.keyButtonPointer.sameScreen ?
+ ELFlagSameScreen : 0;
+ event.u.enterLeave.state = mouse->button ? (mouse->button->state & 0x1f00) : 0;
+ if (keybd)
+ event.u.enterLeave.state |=
+ XkbGrabStateFromRec(&keybd->key->xkbInfo->state);
+ event.u.enterLeave.mode = mode;
+ focus = (keybd) ? keybd->focus->win : None;
+ if ((focus != NoneWin) &&
+ ((pWin == focus) || (focus == PointerRootWin) ||
+ IsParent(focus, pWin)))
+ event.u.enterLeave.flags |= ELFlagFocus;
+
+ if ((mask & GetEventFilter(mouse, &event)))
+ {
+ if (grab)
+ TryClientEvents(rClient(grab), mouse, &event, 1, mask,
+ GetEventFilter(mouse, &event), grab);
+ else
+ DeliverEventsToWindow(mouse, pWin, &event, 1,
+ GetEventFilter(mouse, &event),
+ NullGrab);
+ }
+
+ if ((type == EnterNotify) && (mask & KeymapStateMask))
+ {
+ xKeymapEvent ke;
+ ClientPtr client = grab ? rClient(grab) : wClient(pWin);
+ if (XaceHook(XACE_DEVICE_ACCESS, client, keybd, DixReadAccess))
+ bzero((char *)&ke.map[0], 31);
+ else
+ memmove((char *)&ke.map[0], (char *)&keybd->key->down[1], 31);
+
+ ke.type = KeymapNotify;
+ if (grab)
+ TryClientEvents(rClient(grab), keybd, (xEvent *)&ke, 1,
+ mask, KeymapStateMask, grab);
+ else
+ DeliverEventsToWindow(mouse, pWin, (xEvent *)&ke, 1,
+ KeymapStateMask, NullGrab);
+ }
+}
+
+void
+DeviceEnterLeaveEvent(
+ DeviceIntPtr mouse,
+ int sourceid,
+ int type,
+ int mode,
+ int detail,
+ WindowPtr pWin,
+ Window child)
+{
+ GrabPtr grab = mouse->deviceGrab.grab;
+ xXIEnterEvent *event;
+ int filter;
+ int btlen, len, i;
+ DeviceIntPtr kbd;
+
+ if ((mode == XINotifyPassiveGrab && type == XI_Leave) ||
+ (mode == XINotifyPassiveUngrab && type == XI_Enter))
+ return;
+
+ btlen = (mouse->button) ? bits_to_bytes(mouse->button->numButtons) : 0;
+ btlen = bytes_to_int32(btlen);
+ len = sizeof(xXIEnterEvent) + btlen * 4;
+
+ event = xcalloc(1, len);
+ event->type = GenericEvent;
+ event->extension = IReqCode;
+ event->evtype = type;
+ event->length = (len - sizeof(xEvent))/4;
+ event->buttons_len = btlen;
+ event->detail = detail;
+ event->time = currentTime.milliseconds;
+ event->deviceid = mouse->id;
+ event->sourceid = sourceid;
+ event->mode = mode;
+ event->root_x = FP1616(mouse->spriteInfo->sprite->hot.x, 0);
+ event->root_y = FP1616(mouse->spriteInfo->sprite->hot.y, 0);
+
+ for (i = 0; mouse && mouse->button && i < mouse->button->numButtons; i++)
+ if (BitIsOn(mouse->button->down, i))
+ SetBit(&event[1], i);
+
+ kbd = (IsMaster(mouse) || mouse->u.master) ? GetPairedDevice(mouse) : NULL;
+ if (kbd && kbd->key)
+ {
+ event->mods.base_mods = kbd->key->xkbInfo->state.base_mods;
+ event->mods.latched_mods = kbd->key->xkbInfo->state.latched_mods;
+ event->mods.locked_mods = kbd->key->xkbInfo->state.locked_mods;
+
+ event->group.base_group = kbd->key->xkbInfo->state.base_group;
+ event->group.latched_group = kbd->key->xkbInfo->state.latched_group;
+ event->group.locked_group = kbd->key->xkbInfo->state.locked_group;
+ }
+
+ FixUpEventFromWindow(mouse, (xEvent*)event, pWin, None, FALSE);
+
+ filter = GetEventFilter(mouse, (xEvent*)event);
+
+ if (grab)
+ {
+ Mask mask;
+ mask = grab->xi2mask[XIAllDevices][type/8] |
+ grab->xi2mask[XIAllMasterDevices][type/8] |
+ grab->xi2mask[mouse->id][type/8];
+ TryClientEvents(rClient(grab), mouse, (xEvent*)event, 1, mask,
+ filter, grab);
+ } else {
+ if (!GetWindowXI2Mask(mouse, pWin, (xEvent*)event))
+ goto out;
+ DeliverEventsToWindow(mouse, pWin, (xEvent*)event, 1, filter,
+ NullGrab);
+ }
+
+out:
+ xfree(event);
+}
+
+void
+CoreFocusEvent(DeviceIntPtr dev, int type, int mode, int detail, WindowPtr pWin)
+{
+ xEvent event;
+
+ memset(&event, 0, sizeof(xEvent));
+ event.u.focus.mode = mode;
+ event.u.u.type = type;
+ event.u.u.detail = detail;
+ event.u.focus.window = pWin->drawable.id;
+
+ DeliverEventsToWindow(dev, pWin, &event, 1,
+ GetEventFilter(dev, &event), NullGrab);
+ if ((type == FocusIn) &&
+ ((pWin->eventMask | wOtherEventMasks(pWin)) & KeymapStateMask))
+ {
+ xKeymapEvent ke;
+ ClientPtr client = wClient(pWin);
+ if (XaceHook(XACE_DEVICE_ACCESS, client, dev, DixReadAccess))
+ bzero((char *)&ke.map[0], 31);
+ else
+ memmove((char *)&ke.map[0], (char *)&dev->key->down[1], 31);
+
+ ke.type = KeymapNotify;
+ DeliverEventsToWindow(dev, pWin, (xEvent *)&ke, 1,
+ KeymapStateMask, NullGrab);
+ }
+}
+
+/**
+ * Set the input focus to the given window. Subsequent keyboard events will be
+ * delivered to the given window.
+ *
+ * Usually called from ProcSetInputFocus as result of a client request. If so,
+ * the device is the inputInfo.keyboard.
+ * If called from ProcXSetInputFocus as result of a client xinput request, the
+ * device is set to the device specified by the client.
+ *
+ * @param client Client that requested input focus change.
+ * @param dev Focus device.
+ * @param focusID The window to obtain the focus. Can be PointerRoot or None.
+ * @param revertTo Specifies where the focus reverts to when window becomes
+ * unviewable.
+ * @param ctime Specifies the time.
+ * @param followOK True if pointer is allowed to follow the keyboard.
+ */
+int
+SetInputFocus(
+ ClientPtr client,
+ DeviceIntPtr dev,
+ Window focusID,
+ CARD8 revertTo,
+ Time ctime,
+ Bool followOK)
+{
+ FocusClassPtr focus;
+ WindowPtr focusWin;
+ int mode, rc;
+ TimeStamp time;
+ DeviceIntPtr keybd; /* used for FollowKeyboard or FollowKeyboardWin */
+
+
+ UpdateCurrentTime();
+ if ((revertTo != RevertToParent) &&
+ (revertTo != RevertToPointerRoot) &&
+ (revertTo != RevertToNone) &&
+ ((revertTo != RevertToFollowKeyboard) || !followOK))
+ {
+ client->errorValue = revertTo;
+ return BadValue;
+ }
+ time = ClientTimeToServerTime(ctime);
+
+ if (IsKeyboardDevice(dev))
+ keybd = dev;
+ else
+ keybd = GetPairedDevice(dev);
+
+ if ((focusID == None) || (focusID == PointerRoot))
+ focusWin = (WindowPtr)(long)focusID;
+ else if ((focusID == FollowKeyboard) && followOK)
+ {
+ focusWin = keybd->focus->win;
+ }
+ else {
+ rc = dixLookupWindow(&focusWin, focusID, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ /* It is a match error to try to set the input focus to an
+ unviewable window. */
+ if(!focusWin->realized)
+ return(BadMatch);
+ }
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, DixSetFocusAccess);
+ if (rc != Success)
+ return Success;
+
+ focus = dev->focus;
+ if ((CompareTimeStamps(time, currentTime) == LATER) ||
+ (CompareTimeStamps(time, focus->time) == EARLIER))
+ return Success;
+ mode = (dev->deviceGrab.grab) ? NotifyWhileGrabbed : NotifyNormal;
+ if (focus->win == FollowKeyboardWin)
+ {
+ if (!ActivateFocusInGrab(dev, keybd->focus->win, focusWin))
+ DoFocusEvents(dev, keybd->focus->win, focusWin, mode);
+ } else
+ {
+ if (!ActivateFocusInGrab(dev, focus->win, focusWin))
+ DoFocusEvents(dev, focus->win, focusWin, mode);
+ }
+ focus->time = time;
+ focus->revert = revertTo;
+ if (focusID == FollowKeyboard)
+ focus->win = FollowKeyboardWin;
+ else
+ focus->win = focusWin;
+ if ((focusWin == NoneWin) || (focusWin == PointerRootWin))
+ focus->traceGood = 0;
+ else
+ {
+ int depth = 0;
+ WindowPtr pWin;
+
+ for (pWin = focusWin; pWin; pWin = pWin->parent) depth++;
+ if (depth > focus->traceSize)
+ {
+ focus->traceSize = depth+1;
+ focus->trace = xrealloc(focus->trace,
+ focus->traceSize * sizeof(WindowPtr));
+ }
+ focus->traceGood = depth;
+ for (pWin = focusWin, depth--; pWin; pWin = pWin->parent, depth--)
+ focus->trace[depth] = pWin;
+ }
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for SetInputFocus request.
+ *
+ * Sets the input focus for the virtual core keyboard.
+ */
+int
+ProcSetInputFocus(ClientPtr client)
+{
+ DeviceIntPtr kbd = PickKeyboard(client);
+ REQUEST(xSetInputFocusReq);
+
+ REQUEST_SIZE_MATCH(xSetInputFocusReq);
+
+ return SetInputFocus(client, kbd, stuff->focus,
+ stuff->revertTo, stuff->time, FALSE);
+}
+
+/**
+ * Server-side protocol handling for GetInputFocus request.
+ *
+ * Sends the current input focus for the client's keyboard back to the
+ * client.
+ */
+int
+ProcGetInputFocus(ClientPtr client)
+{
+ DeviceIntPtr kbd = PickKeyboard(client);
+ xGetInputFocusReply rep;
+ FocusClassPtr focus = kbd->focus;
+ int rc;
+ /* REQUEST(xReq); */
+ REQUEST_SIZE_MATCH(xReq);
+
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, kbd, DixGetFocusAccess);
+ if (rc != Success)
+ return rc;
+
+ memset(&rep, 0, sizeof(xGetInputFocusReply));
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ if (focus->win == NoneWin)
+ rep.focus = None;
+ else if (focus->win == PointerRootWin)
+ rep.focus = PointerRoot;
+ else rep.focus = focus->win->drawable.id;
+ rep.revertTo = focus->revert;
+ WriteReplyToClient(client, sizeof(xGetInputFocusReply), &rep);
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for GrabPointer request.
+ *
+ * Sets an active grab on the client's ClientPointer and returns success
+ * status to client.
+ */
+int
+ProcGrabPointer(ClientPtr client)
+{
+ xGrabPointerReply rep;
+ DeviceIntPtr device = PickPointer(client);
+ GrabPtr grab;
+ GrabMask mask;
+ WindowPtr confineTo;
+ CursorPtr oldCursor;
+ REQUEST(xGrabPointerReq);
+ TimeStamp time;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xGrabPointerReq);
+ UpdateCurrentTime();
+
+ if (stuff->eventMask & ~PointerGrabMask)
+ {
+ client->errorValue = stuff->eventMask;
+ return BadValue;
+ }
+
+ if (stuff->confineTo == None)
+ confineTo = NullWindow;
+ else
+ {
+ rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
+ DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+
+ memset(&rep, 0, sizeof(xGrabPointerReply));
+ oldCursor = NullCursor;
+ grab = device->deviceGrab.grab;
+
+ if (grab)
+ {
+ if (grab->confineTo && !confineTo)
+ ConfineCursorToWindow(device, RootWindow(device), FALSE, FALSE);
+ oldCursor = grab->cursor;
+ }
+
+ mask.core = stuff->eventMask;
+
+ rc = GrabDevice(client, device, stuff->pointerMode, stuff->keyboardMode,
+ stuff->grabWindow, stuff->ownerEvents, stuff->time,
+ &mask, GRABTYPE_CORE, stuff->cursor,
+ stuff->confineTo, &rep.status);
+ if (rc != Success)
+ return rc;
+
+ if (oldCursor && rep.status == GrabSuccess)
+ FreeCursor (oldCursor, (Cursor)0);
+
+ time = ClientTimeToServerTime(stuff->time);
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.length = 0;
+ WriteReplyToClient(client, sizeof(xGrabPointerReply), &rep);
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for ChangeActivePointerGrab request.
+ *
+ * Changes properties of the grab hold by the client. If the client does not
+ * hold an active grab on the device, nothing happens.
+ */
+int
+ProcChangeActivePointerGrab(ClientPtr client)
+{
+ DeviceIntPtr device;
+ GrabPtr grab;
+ CursorPtr newCursor, oldCursor;
+ REQUEST(xChangeActivePointerGrabReq);
+ TimeStamp time;
+
+ REQUEST_SIZE_MATCH(xChangeActivePointerGrabReq);
+ if (stuff->eventMask & ~PointerGrabMask)
+ {
+ client->errorValue = stuff->eventMask;
+ return BadValue;
+ }
+ if (stuff->cursor == None)
+ newCursor = NullCursor;
+ else
+ {
+ int rc = dixLookupResourceByType((pointer *)&newCursor, stuff->cursor,
+ RT_CURSOR, client, DixUseAccess);
+ if (rc != Success)
+ {
+ client->errorValue = stuff->cursor;
+ return (rc == BadValue) ? BadCursor : rc;
+ }
+ }
+
+ device = PickPointer(client);
+ grab = device->deviceGrab.grab;
+
+ if (!grab)
+ return Success;
+ if (!SameClient(grab, client))
+ return Success;
+ time = ClientTimeToServerTime(stuff->time);
+ if ((CompareTimeStamps(time, currentTime) == LATER) ||
+ (CompareTimeStamps(time, device->deviceGrab.grabTime) == EARLIER))
+ return Success;
+ oldCursor = grab->cursor;
+ grab->cursor = newCursor;
+ if (newCursor)
+ newCursor->refcnt++;
+ PostNewCursor(device);
+ if (oldCursor)
+ FreeCursor(oldCursor, (Cursor)0);
+ grab->eventMask = stuff->eventMask;
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for UngrabPointer request.
+ *
+ * Deletes a pointer grab on a device the client has grabbed.
+ */
+int
+ProcUngrabPointer(ClientPtr client)
+{
+ DeviceIntPtr device = PickPointer(client);
+ GrabPtr grab;
+ TimeStamp time;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ UpdateCurrentTime();
+ grab = device->deviceGrab.grab;
+
+ time = ClientTimeToServerTime(stuff->id);
+ if ((CompareTimeStamps(time, currentTime) != LATER) &&
+ (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
+ (grab) && SameClient(grab, client))
+ (*device->deviceGrab.DeactivateGrab)(device);
+ return Success;
+}
+
+/**
+ * Sets a grab on the given device.
+ *
+ * Called from ProcGrabKeyboard to work on the client's keyboard.
+ * Called from ProcXGrabDevice to work on the device specified by the client.
+ *
+ * The parameters this_mode and other_mode represent the keyboard_mode and
+ * pointer_mode parameters of XGrabKeyboard().
+ * See man page for details on all the parameters
+ *
+ * @param client Client that owns the grab.
+ * @param dev The device to grab.
+ * @param this_mode GrabModeSync or GrabModeAsync
+ * @param other_mode GrabModeSync or GrabModeAsync
+ * @param status Return code to be returned to the caller.
+ *
+ * @returns Success or BadValue.
+ */
+int
+GrabDevice(ClientPtr client, DeviceIntPtr dev,
+ unsigned pointer_mode, unsigned keyboard_mode, Window grabWindow,
+ unsigned ownerEvents, Time ctime, GrabMask *mask,
+ int grabtype, Cursor curs, Window confineToWin, CARD8 *status)
+{
+ WindowPtr pWin, confineTo;
+ GrabPtr grab;
+ TimeStamp time;
+ Mask access_mode = DixGrabAccess;
+ int rc;
+ GrabInfoPtr grabInfo = &dev->deviceGrab;
+ CursorPtr cursor;
+
+ UpdateCurrentTime();
+ if ((keyboard_mode != GrabModeSync) && (keyboard_mode != GrabModeAsync))
+ {
+ client->errorValue = keyboard_mode;
+ return BadValue;
+ }
+ if ((pointer_mode != GrabModeSync) && (pointer_mode != GrabModeAsync))
+ {
+ client->errorValue = pointer_mode;
+ return BadValue;
+ }
+ if ((ownerEvents != xFalse) && (ownerEvents != xTrue))
+ {
+ client->errorValue = ownerEvents;
+ return BadValue;
+ }
+
+ rc = dixLookupWindow(&pWin, grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (confineToWin == None)
+ confineTo = NullWindow;
+ else
+ {
+ rc = dixLookupWindow(&confineTo, confineToWin, client,
+ DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+
+ if (curs == None)
+ cursor = NullCursor;
+ else
+ {
+ rc = dixLookupResourceByType((pointer *)&cursor, curs, RT_CURSOR,
+ client, DixUseAccess);
+ if (rc != Success)
+ {
+ client->errorValue = curs;
+ return (rc == BadValue) ? BadCursor : rc;
+ }
+ access_mode |= DixForceAccess;
+ }
+
+ if (keyboard_mode == GrabModeSync || pointer_mode == GrabModeSync)
+ access_mode |= DixFreezeAccess;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, dev, access_mode);
+ if (rc != Success)
+ return rc;
+
+ time = ClientTimeToServerTime(ctime);
+ grab = grabInfo->grab;
+ if (grab && grab->grabtype != grabtype)
+ *status = AlreadyGrabbed;
+ if (grab && !SameClient(grab, client))
+ *status = AlreadyGrabbed;
+ else if ((!pWin->realized) ||
+ (confineTo &&
+ !(confineTo->realized
+ && BorderSizeNotEmpty(dev, confineTo))))
+ *status = GrabNotViewable;
+ else if ((CompareTimeStamps(time, currentTime) == LATER) ||
+ (CompareTimeStamps(time, grabInfo->grabTime) == EARLIER))
+ *status = GrabInvalidTime;
+ else if (grabInfo->sync.frozen &&
+ grabInfo->sync.other && !SameClient(grabInfo->sync.other, client))
+ *status = GrabFrozen;
+ else
+ {
+ GrabRec tempGrab;
+
+ /* Otherwise segfaults happen on grabbed MPX devices */
+ memset(&tempGrab, 0, sizeof(GrabRec));
+
+ tempGrab.next = NULL;
+ tempGrab.window = pWin;
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.ownerEvents = ownerEvents;
+ tempGrab.keyboardMode = keyboard_mode;
+ tempGrab.pointerMode = pointer_mode;
+ if (grabtype == GRABTYPE_CORE)
+ tempGrab.eventMask = mask->core;
+ else if (grabtype == GRABTYPE_XI)
+ tempGrab.eventMask = mask->xi;
+ else
+ memcpy(tempGrab.xi2mask, mask->xi2mask, sizeof(tempGrab.xi2mask));
+ tempGrab.device = dev;
+ tempGrab.cursor = cursor;
+ tempGrab.confineTo = confineTo;
+ tempGrab.grabtype = grabtype;
+ (*grabInfo->ActivateGrab)(dev, &tempGrab, time, FALSE);
+ *status = GrabSuccess;
+ }
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for GrabKeyboard request.
+ *
+ * Grabs the client's keyboard and returns success status to client.
+ */
+int
+ProcGrabKeyboard(ClientPtr client)
+{
+ xGrabKeyboardReply rep;
+ REQUEST(xGrabKeyboardReq);
+ int result;
+ DeviceIntPtr keyboard = PickKeyboard(client);
+ GrabMask mask;
+
+ REQUEST_SIZE_MATCH(xGrabKeyboardReq);
+
+ memset(&rep, 0, sizeof(xGrabKeyboardReply));
+ mask.core = KeyPressMask | KeyReleaseMask;
+
+ result = GrabDevice(client, keyboard, stuff->pointerMode,
+ stuff->keyboardMode, stuff->grabWindow, stuff->ownerEvents,
+ stuff->time, &mask, GRABTYPE_CORE, None, None,
+ &rep.status);
+
+ if (result != Success)
+ return result;
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.length = 0;
+ WriteReplyToClient(client, sizeof(xGrabKeyboardReply), &rep);
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for UngrabKeyboard request.
+ *
+ * Deletes a possible grab on the client's keyboard.
+ */
+int
+ProcUngrabKeyboard(ClientPtr client)
+{
+ DeviceIntPtr device = PickKeyboard(client);
+ GrabPtr grab;
+ TimeStamp time;
+ REQUEST(xResourceReq);
+
+ REQUEST_SIZE_MATCH(xResourceReq);
+ UpdateCurrentTime();
+
+ grab = device->deviceGrab.grab;
+
+ time = ClientTimeToServerTime(stuff->id);
+ if ((CompareTimeStamps(time, currentTime) != LATER) &&
+ (CompareTimeStamps(time, device->deviceGrab.grabTime) != EARLIER) &&
+ (grab) && SameClient(grab, client) && grab->grabtype == GRABTYPE_CORE)
+ (*device->deviceGrab.DeactivateGrab)(device);
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for QueryPointer request.
+ *
+ * Returns the current state and position of the client's ClientPointer to the
+ * client.
+ */
+int
+ProcQueryPointer(ClientPtr client)
+{
+ xQueryPointerReply rep;
+ WindowPtr pWin, t;
+ DeviceIntPtr mouse = PickPointer(client);
+ DeviceIntPtr keyboard;
+ SpritePtr pSprite;
+ int rc;
+ REQUEST(xResourceReq);
+ REQUEST_SIZE_MATCH(xResourceReq);
+
+ rc = dixLookupWindow(&pWin, stuff->id, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, mouse, DixReadAccess);
+ if (rc != Success && rc != BadAccess)
+ return rc;
+
+ keyboard = GetPairedDevice(mouse);
+
+ pSprite = mouse->spriteInfo->sprite;
+ if (mouse->valuator->motionHintWindow)
+ MaybeStopHint(mouse, client);
+ memset(&rep, 0, sizeof(xQueryPointerReply));
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.mask = mouse->button ? (mouse->button->state) : 0;
+ rep.mask |= XkbStateFieldFromRec(&keyboard->key->xkbInfo->state);
+ rep.length = 0;
+ rep.root = (RootWindow(mouse))->drawable.id;
+ rep.rootX = pSprite->hot.x;
+ rep.rootY = pSprite->hot.y;
+ rep.child = None;
+ if (pSprite->hot.pScreen == pWin->drawable.pScreen)
+ {
+ rep.sameScreen = xTrue;
+ rep.winX = pSprite->hot.x - pWin->drawable.x;
+ rep.winY = pSprite->hot.y - pWin->drawable.y;
+ for (t = pSprite->win; t; t = t->parent)
+ if (t->parent == pWin)
+ {
+ rep.child = t->drawable.id;
+ break;
+ }
+ }
+ else
+ {
+ rep.sameScreen = xFalse;
+ rep.winX = 0;
+ rep.winY = 0;
+ }
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension) {
+ rep.rootX += panoramiXdataPtr[0].x;
+ rep.rootY += panoramiXdataPtr[0].y;
+ if(stuff->id == rep.root) {
+ rep.winX += panoramiXdataPtr[0].x;
+ rep.winY += panoramiXdataPtr[0].y;
+ }
+ }
+#endif
+
+ if (rc == BadAccess) {
+ rep.mask = 0;
+ rep.child = None;
+ rep.rootX = 0;
+ rep.rootY = 0;
+ rep.winX = 0;
+ rep.winY = 0;
+ }
+
+ WriteReplyToClient(client, sizeof(xQueryPointerReply), &rep);
+
+ return(Success);
+}
+
+/**
+ * Initializes the device list and the DIX sprite to sane values. Allocates
+ * trace memory used for quick window traversal.
+ */
+void
+InitEvents(void)
+{
+ int i;
+
+ inputInfo.numDevices = 0;
+ inputInfo.devices = (DeviceIntPtr)NULL;
+ inputInfo.off_devices = (DeviceIntPtr)NULL;
+ inputInfo.keyboard = (DeviceIntPtr)NULL;
+ inputInfo.pointer = (DeviceIntPtr)NULL;
+ /* The mask for pointer motion events may have changed in the last server
+ * generation. See comment above definition of filters. */
+ filters[0][PointerMotionMask] = MotionNotify;
+ for (i = 1; i < MAXDEVICES; i++)
+ {
+ memcpy(&filters[i], filters[0], sizeof(filters[0]));
+ }
+
+ syncEvents.replayDev = (DeviceIntPtr)NULL;
+ syncEvents.replayWin = NullWindow;
+ while (syncEvents.pending)
+ {
+ QdEventPtr next = syncEvents.pending->next;
+ xfree(syncEvents.pending);
+ syncEvents.pending = next;
+ }
+ syncEvents.pendtail = &syncEvents.pending;
+ syncEvents.playingEvents = FALSE;
+ syncEvents.time.months = 0;
+ syncEvents.time.milliseconds = 0; /* hardly matters */
+ currentTime.months = 0;
+ currentTime.milliseconds = GetTimeInMillis();
+ lastDeviceEventTime = currentTime;
+ for (i = 0; i < DNPMCOUNT; i++)
+ {
+ DontPropagateMasks[i] = 0;
+ DontPropagateRefCnts[i] = 0;
+ }
+
+ InputEventListLen = GetMaximumEventsNum();
+ InputEventList = InitEventList(InputEventListLen);
+ if (!InputEventList)
+ FatalError("[dix] Failed to allocate input event list.\n");
+}
+
+void
+CloseDownEvents(void)
+{
+ FreeEventList(InputEventList, InputEventListLen);
+ InputEventListLen = 0;
+ InputEventList = NULL;
+}
+
+/**
+ * Server-side protocol handling for SendEvent request.
+ *
+ * Locates the window to send the event to and forwards the event.
+ */
+int
+ProcSendEvent(ClientPtr client)
+{
+ WindowPtr pWin;
+ WindowPtr effectiveFocus = NullWindow; /* only set if dest==InputFocus */
+ DeviceIntPtr dev = PickPointer(client);
+ DeviceIntPtr keybd = GetPairedDevice(dev);
+ SpritePtr pSprite = dev->spriteInfo->sprite;
+ REQUEST(xSendEventReq);
+
+ REQUEST_SIZE_MATCH(xSendEventReq);
+
+ /* The client's event type must be a core event type or one defined by an
+ extension. */
+
+ if ( ! ((stuff->event.u.u.type > X_Reply &&
+ stuff->event.u.u.type < LASTEvent) ||
+ (stuff->event.u.u.type >= EXTENSION_EVENT_BASE &&
+ stuff->event.u.u.type < (unsigned)lastEvent)))
+ {
+ client->errorValue = stuff->event.u.u.type;
+ return BadValue;
+ }
+ if (stuff->event.u.u.type == ClientMessage &&
+ stuff->event.u.u.detail != 8 &&
+ stuff->event.u.u.detail != 16 &&
+ stuff->event.u.u.detail != 32)
+ {
+ client->errorValue = stuff->event.u.u.detail;
+ return BadValue;
+ }
+ if (stuff->eventMask & ~AllEventMasks)
+ {
+ client->errorValue = stuff->eventMask;
+ return BadValue;
+ }
+
+ if (stuff->destination == PointerWindow)
+ pWin = pSprite->win;
+ else if (stuff->destination == InputFocus)
+ {
+ WindowPtr inputFocus = (keybd) ? keybd->focus->win : NoneWin;
+
+ if (inputFocus == NoneWin)
+ return Success;
+
+ /* If the input focus is PointerRootWin, send the event to where
+ the pointer is if possible, then perhaps propogate up to root. */
+ if (inputFocus == PointerRootWin)
+ inputFocus = pSprite->spriteTrace[0]; /* Root window! */
+
+ if (IsParent(inputFocus, pSprite->win))
+ {
+ effectiveFocus = inputFocus;
+ pWin = pSprite->win;
+ }
+ else
+ effectiveFocus = pWin = inputFocus;
+ }
+ else
+ dixLookupWindow(&pWin, stuff->destination, client, DixSendAccess);
+
+ if (!pWin)
+ return BadWindow;
+ if ((stuff->propagate != xFalse) && (stuff->propagate != xTrue))
+ {
+ client->errorValue = stuff->propagate;
+ return BadValue;
+ }
+ stuff->event.u.u.type |= 0x80;
+ if (stuff->propagate)
+ {
+ for (;pWin; pWin = pWin->parent)
+ {
+ if (XaceHook(XACE_SEND_ACCESS, client, NULL, pWin,
+ &stuff->event, 1))
+ return Success;
+ if (DeliverEventsToWindow(dev, pWin,
+ &stuff->event, 1, stuff->eventMask, NullGrab))
+ return Success;
+ if (pWin == effectiveFocus)
+ return Success;
+ stuff->eventMask &= ~wDontPropagateMask(pWin);
+ if (!stuff->eventMask)
+ break;
+ }
+ }
+ else if (!XaceHook(XACE_SEND_ACCESS, client, NULL, pWin, &stuff->event, 1))
+ DeliverEventsToWindow(dev, pWin, &stuff->event,
+ 1, stuff->eventMask, NullGrab);
+ return Success;
+}
+
+/**
+ * Server-side protocol handling for UngrabKey request.
+ *
+ * Deletes a passive grab for the given key. Works on the
+ * client's keyboard.
+ */
+int
+ProcUngrabKey(ClientPtr client)
+{
+ REQUEST(xUngrabKeyReq);
+ WindowPtr pWin;
+ GrabRec tempGrab;
+ DeviceIntPtr keybd = PickKeyboard(client);
+ int rc;
+
+ REQUEST_SIZE_MATCH(xUngrabKeyReq);
+ rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixGetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+ if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
+ (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
+ && (stuff->key != AnyKey))
+ {
+ client->errorValue = stuff->key;
+ return BadValue;
+ }
+ if ((stuff->modifiers != AnyModifier) &&
+ (stuff->modifiers & ~AllModifiersMask))
+ {
+ client->errorValue = stuff->modifiers;
+ return BadValue;
+ }
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.device = keybd;
+ tempGrab.window = pWin;
+ tempGrab.modifiersDetail.exact = stuff->modifiers;
+ tempGrab.modifiersDetail.pMask = NULL;
+ tempGrab.modifierDevice = GetPairedDevice(keybd);
+ tempGrab.type = KeyPress;
+ tempGrab.grabtype = GRABTYPE_CORE;
+ tempGrab.detail.exact = stuff->key;
+ tempGrab.detail.pMask = NULL;
+ tempGrab.next = NULL;
+
+ if (!DeletePassiveGrabFromList(&tempGrab))
+ return(BadAlloc);
+ return(Success);
+}
+
+/**
+ * Server-side protocol handling for GrabKey request.
+ *
+ * Creates a grab for the client's keyboard and adds it to the list of passive
+ * grabs.
+ */
+int
+ProcGrabKey(ClientPtr client)
+{
+ WindowPtr pWin;
+ REQUEST(xGrabKeyReq);
+ GrabPtr grab;
+ DeviceIntPtr keybd = PickKeyboard(client);
+ int rc;
+ GrabParameters param;
+ GrabMask mask;
+
+ REQUEST_SIZE_MATCH(xGrabKeyReq);
+
+ memset(&param, 0, sizeof(param));
+ param.grabtype = GRABTYPE_CORE;
+ param.ownerEvents = stuff->ownerEvents;
+ param.this_device_mode = stuff->keyboardMode;
+ param.other_devices_mode = stuff->pointerMode;
+ param.modifiers = stuff->modifiers;
+
+ rc = CheckGrabValues(client, &param);
+ if (rc != Success)
+ return rc;
+
+ if (((stuff->key > keybd->key->xkbInfo->desc->max_key_code) ||
+ (stuff->key < keybd->key->xkbInfo->desc->min_key_code))
+ && (stuff->key != AnyKey))
+ {
+ client->errorValue = stuff->key;
+ return BadValue;
+ }
+ rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+
+
+ mask.core = (KeyPressMask | KeyReleaseMask);
+
+ grab = CreateGrab(client->index, keybd, keybd, pWin, GRABTYPE_CORE, &mask,
+ &param, KeyPress, stuff->key, NullWindow, NullCursor);
+ if (!grab)
+ return BadAlloc;
+ return AddPassiveGrabToList(client, grab);
+}
+
+
+/**
+ * Server-side protocol handling for GrabButton request.
+ *
+ * Creates a grab for the client's ClientPointer and adds it as a passive grab
+ * to the list.
+ */
+int
+ProcGrabButton(ClientPtr client)
+{
+ WindowPtr pWin, confineTo;
+ REQUEST(xGrabButtonReq);
+ CursorPtr cursor;
+ GrabPtr grab;
+ DeviceIntPtr ptr, modifierDevice;
+ Mask access_mode = DixGrabAccess;
+ GrabMask mask;
+ GrabParameters param;
+ int rc;
+
+ REQUEST_SIZE_MATCH(xGrabButtonReq);
+ if ((stuff->pointerMode != GrabModeSync) &&
+ (stuff->pointerMode != GrabModeAsync))
+ {
+ client->errorValue = stuff->pointerMode;
+ return BadValue;
+ }
+ if ((stuff->keyboardMode != GrabModeSync) &&
+ (stuff->keyboardMode != GrabModeAsync))
+ {
+ client->errorValue = stuff->keyboardMode;
+ return BadValue;
+ }
+ if ((stuff->modifiers != AnyModifier) &&
+ (stuff->modifiers & ~AllModifiersMask))
+ {
+ client->errorValue = stuff->modifiers;
+ return BadValue;
+ }
+ if ((stuff->ownerEvents != xFalse) && (stuff->ownerEvents != xTrue))
+ {
+ client->errorValue = stuff->ownerEvents;
+ return BadValue;
+ }
+ if (stuff->eventMask & ~PointerGrabMask)
+ {
+ client->errorValue = stuff->eventMask;
+ return BadValue;
+ }
+ rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ if (stuff->confineTo == None)
+ confineTo = NullWindow;
+ else {
+ rc = dixLookupWindow(&confineTo, stuff->confineTo, client,
+ DixSetAttrAccess);
+ if (rc != Success)
+ return rc;
+ }
+ if (stuff->cursor == None)
+ cursor = NullCursor;
+ else
+ {
+ rc = dixLookupResourceByType((pointer *)&cursor, stuff->cursor, RT_CURSOR,
+ client, DixUseAccess);
+ if (rc != Success)
+ if (!cursor)
+ {
+ client->errorValue = stuff->cursor;
+ return (rc == BadValue) ? BadCursor : rc;
+ }
+ access_mode |= DixForceAccess;
+ }
+
+ ptr = PickPointer(client);
+ modifierDevice = GetPairedDevice(ptr);
+ if (stuff->pointerMode == GrabModeSync ||
+ stuff->keyboardMode == GrabModeSync)
+ access_mode |= DixFreezeAccess;
+ rc = XaceHook(XACE_DEVICE_ACCESS, client, ptr, access_mode);
+ if (rc != Success)
+ return rc;
+
+ memset(&param, 0, sizeof(param));
+ param.grabtype = GRABTYPE_CORE;
+ param.ownerEvents = stuff->ownerEvents;
+ param.this_device_mode = stuff->keyboardMode;
+ param.other_devices_mode = stuff->pointerMode;
+ param.modifiers = stuff->modifiers;
+
+ mask.core = stuff->eventMask;
+
+ grab = CreateGrab(client->index, ptr, modifierDevice, pWin,
+ GRABTYPE_CORE, &mask, &param, ButtonPress,
+ stuff->button, confineTo, cursor);
+ if (!grab)
+ return BadAlloc;
+ return AddPassiveGrabToList(client, grab);
+}
+
+/**
+ * Server-side protocol handling for UngrabButton request.
+ *
+ * Deletes a passive grab on the client's ClientPointer from the list.
+ */
+int
+ProcUngrabButton(ClientPtr client)
+{
+ REQUEST(xUngrabButtonReq);
+ WindowPtr pWin;
+ GrabRec tempGrab;
+ int rc;
+ DeviceIntPtr ptr;
+
+ REQUEST_SIZE_MATCH(xUngrabButtonReq);
+ if ((stuff->modifiers != AnyModifier) &&
+ (stuff->modifiers & ~AllModifiersMask))
+ {
+ client->errorValue = stuff->modifiers;
+ return BadValue;
+ }
+ rc = dixLookupWindow(&pWin, stuff->grabWindow, client, DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ ptr = PickPointer(client);
+
+ tempGrab.resource = client->clientAsMask;
+ tempGrab.device = ptr;
+ tempGrab.window = pWin;
+ tempGrab.modifiersDetail.exact = stuff->modifiers;
+ tempGrab.modifiersDetail.pMask = NULL;
+ tempGrab.modifierDevice = GetPairedDevice(ptr);
+ tempGrab.type = ButtonPress;
+ tempGrab.detail.exact = stuff->button;
+ tempGrab.grabtype = GRABTYPE_CORE;
+ tempGrab.detail.pMask = NULL;
+ tempGrab.next = NULL;
+
+ if (!DeletePassiveGrabFromList(&tempGrab))
+ return(BadAlloc);
+ return(Success);
+}
+
+/**
+ * Deactivate any grab that may be on the window, remove the focus.
+ * Delete any XInput extension events from the window too. Does not change the
+ * window mask. Use just before the window is deleted.
+ *
+ * If freeResources is set, passive grabs on the window are deleted.
+ *
+ * @param pWin The window to delete events from.
+ * @param freeResources True if resources associated with the window should be
+ * deleted.
+ */
+void
+DeleteWindowFromAnyEvents(WindowPtr pWin, Bool freeResources)
+{
+ WindowPtr parent;
+ DeviceIntPtr mouse = inputInfo.pointer;
+ DeviceIntPtr keybd = inputInfo.keyboard;
+ FocusClassPtr focus;
+ OtherClientsPtr oc;
+ GrabPtr passive;
+ GrabPtr grab;
+
+
+ /* Deactivate any grabs performed on this window, before making any
+ input focus changes. */
+ grab = mouse->deviceGrab.grab;
+ if (grab &&
+ ((grab->window == pWin) || (grab->confineTo == pWin)))
+ (*mouse->deviceGrab.DeactivateGrab)(mouse);
+
+
+ /* Deactivating a keyboard grab should cause focus events. */
+ grab = keybd->deviceGrab.grab;
+ if (grab && (grab->window == pWin))
+ (*keybd->deviceGrab.DeactivateGrab)(keybd);
+
+ /* And now the real devices */
+ for (mouse = inputInfo.devices; mouse; mouse = mouse->next)
+ {
+ grab = mouse->deviceGrab.grab;
+ if (grab && ((grab->window == pWin) || (grab->confineTo == pWin)))
+ (*mouse->deviceGrab.DeactivateGrab)(mouse);
+ }
+
+
+ for (keybd = inputInfo.devices; keybd; keybd = keybd->next)
+ {
+ if (IsKeyboardDevice(keybd))
+ {
+ focus = keybd->focus;
+
+ /* If the focus window is a root window (ie. has no parent) then don't
+ delete the focus from it. */
+
+ if ((pWin == focus->win) && (pWin->parent != NullWindow))
+ {
+ int focusEventMode = NotifyNormal;
+
+ /* If a grab is in progress, then alter the mode of focus events. */
+
+ if (keybd->deviceGrab.grab)
+ focusEventMode = NotifyWhileGrabbed;
+
+ switch (focus->revert)
+ {
+ case RevertToNone:
+ DoFocusEvents(keybd, pWin, NoneWin, focusEventMode);
+ focus->win = NoneWin;
+ focus->traceGood = 0;
+ break;
+ case RevertToParent:
+ parent = pWin;
+ do
+ {
+ parent = parent->parent;
+ focus->traceGood--;
+ } while (!parent->realized
+ /* This would be a good protocol change -- windows being reparented
+ during SaveSet processing would cause the focus to revert to the
+ nearest enclosing window which will survive the death of the exiting
+ client, instead of ending up reverting to a dying window and thence
+ to None
+ */
+#ifdef NOTDEF
+ || wClient(parent)->clientGone
+#endif
+ );
+ if (!ActivateFocusInGrab(keybd, pWin, parent))
+ DoFocusEvents(keybd, pWin, parent, focusEventMode);
+ focus->win = parent;
+ focus->revert = RevertToNone;
+ break;
+ case RevertToPointerRoot:
+ if (!ActivateFocusInGrab(keybd, pWin, PointerRootWin))
+ DoFocusEvents(keybd, pWin, PointerRootWin, focusEventMode);
+ focus->win = PointerRootWin;
+ focus->traceGood = 0;
+ break;
+ }
+ }
+ }
+
+ if (IsPointerDevice(keybd))
+ {
+ if (keybd->valuator->motionHintWindow == pWin)
+ keybd->valuator->motionHintWindow = NullWindow;
+ }
+ }
+
+ if (freeResources)
+ {
+ if (pWin->dontPropagate)
+ DontPropagateRefCnts[pWin->dontPropagate]--;
+ while ( (oc = wOtherClients(pWin)) )
+ FreeResource(oc->resource, RT_NONE);
+ while ( (passive = wPassiveGrabs(pWin)) )
+ FreeResource(passive->resource, RT_NONE);
+ }
+
+ DeleteWindowFromAnyExtEvents(pWin, freeResources);
+}
+
+/**
+ * Call this whenever some window at or below pWin has changed geometry. If
+ * there is a grab on the window, the cursor will be re-confined into the
+ * window.
+ */
+void
+CheckCursorConfinement(WindowPtr pWin)
+{
+ GrabPtr grab;
+ WindowPtr confineTo;
+ DeviceIntPtr pDev;
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension && pWin->drawable.pScreen->myNum) return;
+#endif
+
+ for (pDev = inputInfo.devices; pDev; pDev = pDev->next)
+ {
+ if (DevHasCursor(pDev))
+ {
+ grab = pDev->deviceGrab.grab;
+ if (grab && (confineTo = grab->confineTo))
+ {
+ if (!BorderSizeNotEmpty(pDev, confineTo))
+ (*pDev->deviceGrab.DeactivateGrab)(pDev);
+ else if ((pWin == confineTo) || IsParent(pWin, confineTo))
+ ConfineCursorToWindow(pDev, confineTo, TRUE, TRUE);
+ }
+ }
+ }
+}
+
+Mask
+EventMaskForClient(WindowPtr pWin, ClientPtr client)
+{
+ OtherClientsPtr other;
+
+ if (wClient (pWin) == client)
+ return pWin->eventMask;
+ for (other = wOtherClients(pWin); other; other = other->next)
+ {
+ if (SameClient(other, client))
+ return other->mask;
+ }
+ return 0;
+}
+
+/**
+ * Server-side protocol handling for RecolorCursor request.
+ */
+int
+ProcRecolorCursor(ClientPtr client)
+{
+ CursorPtr pCursor;
+ int rc, nscr;
+ ScreenPtr pscr;
+ Bool displayed;
+ SpritePtr pSprite = PickPointer(client)->spriteInfo->sprite;
+ REQUEST(xRecolorCursorReq);
+
+ REQUEST_SIZE_MATCH(xRecolorCursorReq);
+ rc = dixLookupResourceByType((pointer *)&pCursor, stuff->cursor, RT_CURSOR,
+ client, DixWriteAccess);
+ if (rc != Success)
+ {
+ client->errorValue = stuff->cursor;
+ return (rc == BadValue) ? BadCursor : rc;
+ }
+
+ pCursor->foreRed = stuff->foreRed;
+ pCursor->foreGreen = stuff->foreGreen;
+ pCursor->foreBlue = stuff->foreBlue;
+
+ pCursor->backRed = stuff->backRed;
+ pCursor->backGreen = stuff->backGreen;
+ pCursor->backBlue = stuff->backBlue;
+
+ for (nscr = 0; nscr < screenInfo.numScreens; nscr++)
+ {
+ pscr = screenInfo.screens[nscr];
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension)
+ displayed = (pscr == pSprite->screen);
+ else
+#endif
+ displayed = (pscr == pSprite->hotPhys.pScreen);
+ ( *pscr->RecolorCursor)(PickPointer(client), pscr, pCursor,
+ (pCursor == pSprite->current) && displayed);
+ }
+ return (Success);
+}
+
+/**
+ * Write the given events to a client, swapping the byte order if necessary.
+ * To swap the byte ordering, a callback is called that has to be set up for
+ * the given event type.
+ *
+ * In the case of DeviceMotionNotify trailed by DeviceValuators, the events
+ * can be more than one. Usually it's just one event.
+ *
+ * Do not modify the event structure passed in. See comment below.
+ *
+ * @param pClient Client to send events to.
+ * @param count Number of events.
+ * @param events The event list.
+ */
+void
+WriteEventsToClient(ClientPtr pClient, int count, xEvent *events)
+{
+#ifdef PANORAMIX
+ xEvent eventCopy;
+#endif
+ xEvent *eventTo, *eventFrom;
+ int i,
+ eventlength = sizeof(xEvent);
+
+ /* Let XKB rewrite the state, as it depends on client preferences. */
+ XkbFilterEvents(pClient, count, events);
+
+#ifdef PANORAMIX
+ if(!noPanoramiXExtension &&
+ (panoramiXdataPtr[0].x || panoramiXdataPtr[0].y))
+ {
+ switch(events->u.u.type) {
+ case MotionNotify:
+ case ButtonPress:
+ case ButtonRelease:
+ case KeyPress:
+ case KeyRelease:
+ case EnterNotify:
+ case LeaveNotify:
+ /*
+ When multiple clients want the same event DeliverEventsToWindow
+ passes the same event structure multiple times so we can't
+ modify the one passed to us
+ */
+ count = 1; /* should always be 1 */
+ memcpy(&eventCopy, events, sizeof(xEvent));
+ eventCopy.u.keyButtonPointer.rootX += panoramiXdataPtr[0].x;
+ eventCopy.u.keyButtonPointer.rootY += panoramiXdataPtr[0].y;
+ if(eventCopy.u.keyButtonPointer.event ==
+ eventCopy.u.keyButtonPointer.root)
+ {
+ eventCopy.u.keyButtonPointer.eventX += panoramiXdataPtr[0].x;
+ eventCopy.u.keyButtonPointer.eventY += panoramiXdataPtr[0].y;
+ }
+ events = &eventCopy;
+ break;
+ default: break;
+ }
+ }
+#endif
+
+ if (EventCallback)
+ {
+ EventInfoRec eventinfo;
+ eventinfo.client = pClient;
+ eventinfo.events = events;
+ eventinfo.count = count;
+ CallCallbacks(&EventCallback, (pointer)&eventinfo);
+ }
+#ifdef XSERVER_DTRACE
+ if (XSERVER_SEND_EVENT_ENABLED()) {
+ for (i = 0; i < count; i++)
+ {
+ XSERVER_SEND_EVENT(pClient->index, events[i].u.u.type, &events[i]);
+ }
+ }
+#endif
+ /* Just a safety check to make sure we only have one GenericEvent, it just
+ * makes things easier for me right now. (whot) */
+ for (i = 1; i < count; i++)
+ {
+ if (events[i].u.u.type == GenericEvent)
+ {
+ ErrorF("[dix] TryClientEvents: Only one GenericEvent at a time.\n");
+ return;
+ }
+ }
+
+ if (events->u.u.type == GenericEvent)
+ {
+ eventlength += ((xGenericEvent*)events)->length * 4;
+ }
+
+ if(pClient->swapped)
+ {
+ if (eventlength > swapEventLen)
+ {
+ swapEventLen = eventlength;
+ swapEvent = Xrealloc(swapEvent, swapEventLen);
+ if (!swapEvent)
+ {
+ FatalError("WriteEventsToClient: Out of memory.\n");
+ return;
+ }
+ }
+
+ for(i = 0; i < count; i++)
+ {
+ eventFrom = &events[i];
+ eventTo = swapEvent;
+
+ /* Remember to strip off the leading bit of type in case
+ this event was sent with "SendEvent." */
+ (*EventSwapVector[eventFrom->u.u.type & 0177])
+ (eventFrom, eventTo);
+
+ WriteToClient(pClient, eventlength, (char *)eventTo);
+ }
+ }
+ else
+ {
+ /* only one GenericEvent, remember? that means either count is 1 and
+ * eventlength is arbitrary or eventlength is 32 and count doesn't
+ * matter. And we're all set. Woohoo. */
+ WriteToClient(pClient, count * eventlength, (char *) events);
+ }
+}
+
+/*
+ * Set the client pointer for the given client.
+ *
+ * A client can have exactly one ClientPointer. Each time a
+ * request/reply/event is processed and the choice of devices is ambiguous
+ * (e.g. QueryPointer request), the server will pick the ClientPointer (see
+ * PickPointer()).
+ * If a keyboard is needed, the first keyboard paired with the CP is used.
+ */
+int
+SetClientPointer(ClientPtr client, DeviceIntPtr device)
+{
+ int rc = XaceHook(XACE_DEVICE_ACCESS, client, device, DixUseAccess);
+ if (rc != Success)
+ return rc;
+
+ if (!IsMaster(device))
+ {
+ ErrorF("[dix] Need master device for ClientPointer. This is a bug.\n");
+ return BadDevice;
+ } else if (!device->spriteInfo->spriteOwner)
+ {
+ ErrorF("[dix] Device %d does not have a sprite. "
+ "Cannot be ClientPointer\n", device->id);
+ return BadDevice;
+ }
+ client->clientPtr = device;
+ return Success;
+}
+
+/* PickPointer will pick an appropriate pointer for the given client.
+ *
+ * An "appropriate device" is (in order of priority):
+ * 1) A device the given client has a core grab on.
+ * 2) A device set as ClientPointer for the given client.
+ * 3) The first master device.
+ */
+DeviceIntPtr
+PickPointer(ClientPtr client)
+{
+ DeviceIntPtr it = inputInfo.devices;
+
+ /* First, check if the client currently has a grab on a device. Even
+ * keyboards count. */
+ for(it = inputInfo.devices; it; it = it->next)
+ {
+ GrabPtr grab = it->deviceGrab.grab;
+ if (grab && grab->grabtype == GRABTYPE_CORE && SameClient(grab, client))
+ {
+ it = GetMaster(it, MASTER_POINTER);
+ return it; /* Always return a core grabbed device */
+ }
+ }
+
+ if (!client->clientPtr)
+ {
+ DeviceIntPtr it = inputInfo.devices;
+ while (it)
+ {
+ if (IsMaster(it) && it->spriteInfo->spriteOwner)
+ {
+ client->clientPtr = it;
+ break;
+ }
+ it = it->next;
+ }
+ }
+ return client->clientPtr;
+}
+
+/* PickKeyboard will pick an appropriate keyboard for the given client by
+ * searching the list of devices for the keyboard device that is paired with
+ * the client's pointer.
+ */
+DeviceIntPtr
+PickKeyboard(ClientPtr client)
+{
+ DeviceIntPtr ptr = PickPointer(client);
+ DeviceIntPtr kbd = GetMaster(ptr, MASTER_KEYBOARD);
+
+ if (!kbd)
+ {
+ ErrorF("[dix] ClientPointer not paired with a keyboard. This "
+ "is a bug.\n");
+ }
+
+ return kbd;
+}
+
+/* A client that has one or more core grabs does not get core events from
+ * devices it does not have a grab on. Legacy applications behave bad
+ * otherwise because they are not used to it and the events interfere.
+ * Only applies for core events.
+ *
+ * Return true if a core event from the device would interfere and should not
+ * be delivered.
+ */
+Bool
+IsInterferingGrab(ClientPtr client, DeviceIntPtr dev, xEvent* event)
+{
+ DeviceIntPtr it = inputInfo.devices;
+
+ switch(event->u.u.type)
+ {
+ case KeyPress:
+ case KeyRelease:
+ case ButtonPress:
+ case ButtonRelease:
+ case MotionNotify:
+ case EnterNotify:
+ case LeaveNotify:
+ break;
+ default:
+ return FALSE;
+ }
+
+ if (dev->deviceGrab.grab && SameClient(dev->deviceGrab.grab, client))
+ return FALSE;
+
+ while(it)
+ {
+ if (it != dev)
+ {
+ if (it->deviceGrab.grab && SameClient(it->deviceGrab.grab, client)
+ && !it->deviceGrab.fromPassiveGrab)
+ {
+ if ((IsPointerDevice(it) && IsPointerDevice(dev)) ||
+ (IsKeyboardDevice(it) && IsKeyboardDevice(dev)))
+ return TRUE;
+ }
+ }
+ it = it->next;
+ }
+
+ return FALSE;
+}
+
diff --git a/xorg-server/dix/getevents.c b/xorg-server/dix/getevents.c
index 82bb77b4b..40fe4b7bb 100644
--- a/xorg-server/dix/getevents.c
+++ b/xorg-server/dix/getevents.c
@@ -1,1207 +1,1217 @@
-/*
- * Copyright © 2006 Nokia Corporation
- * Copyright © 2006-2007 Daniel Stone
- * Copyright © 2008 Red Hat, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- * Authors: Daniel Stone <daniel@fooishbar.org>
- * Peter Hutterer <peter.hutterer@who-t.net>
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/keysym.h>
-#include <X11/Xproto.h>
-
-#include "misc.h"
-#include "resource.h"
-#include "inputstr.h"
-#include "scrnintstr.h"
-#include "cursorstr.h"
-#include "dixstruct.h"
-#include "globals.h"
-#include "dixevents.h"
-#include "mipointer.h"
-#include "eventstr.h"
-#include "eventconvert.h"
-
-#include <X11/extensions/XKBproto.h>
-#include "xkbsrv.h"
-
-#ifdef PANORAMIX
-#include "panoramiX.h"
-#include "panoramiXsrv.h"
-#endif
-
-#include <X11/extensions/XI.h>
-#include <X11/extensions/XIproto.h>
-#include "exglobals.h"
-#include "exevents.h"
-#include "exglobals.h"
-#include "extnsionst.h"
-#include "listdev.h" /* for sizing up DeviceClassesChangedEvent */
-
-/* Number of motion history events to store. */
-#define MOTION_HISTORY_SIZE 256
-
-/* InputEventList is the container list for all input events generated by the
- * DDX. The DDX is expected to call GetEventList() and then pass the list into
- * Get{Pointer|Keyboard}Events.
- */
-EventListPtr InputEventList = NULL;
-int InputEventListLen = 0;
-
-int
-GetEventList(EventListPtr* list)
-{
- *list = InputEventList;
- return InputEventListLen;
-}
-
-/**
- * Pick some arbitrary size for Xi motion history.
- */
-int
-GetMotionHistorySize(void)
-{
- return MOTION_HISTORY_SIZE;
-}
-
-void
-set_key_down(DeviceIntPtr pDev, int key_code, int type)
-{
- if (type == KEY_PROCESSED)
- pDev->key->down[key_code >> 3] |= (1 << (key_code & 7));
- else
- pDev->key->postdown[key_code >> 3] |= (1 << (key_code & 7));
-}
-
-void
-set_key_up(DeviceIntPtr pDev, int key_code, int type)
-{
- if (type == KEY_PROCESSED)
- pDev->key->down[key_code >> 3] &= ~(1 << (key_code & 7));
- else
- pDev->key->postdown[key_code >> 3] &= ~(1 << (key_code & 7));
-}
-
-Bool
-key_is_down(DeviceIntPtr pDev, int key_code, int type)
-{
- int ret = 0;
-
- if (type & KEY_PROCESSED)
- ret |= !!(pDev->key->down[key_code >> 3] & (1 << (key_code & 7)));
- else if (type & KEY_POSTED)
- ret |= !!(pDev->key->postdown[key_code >> 3] & (1 << (key_code & 7)));
-
- return ret;
-}
-
-static Bool
-key_autorepeats(DeviceIntPtr pDev, int key_code)
-{
- return !!(pDev->kbdfeed->ctrl.autoRepeats[key_code >> 3] &
- (1 << (key_code & 7)));
-}
-
-static void
-init_event(DeviceIntPtr dev, DeviceEvent* event, Time ms)
-{
- memset(event, 0, sizeof(DeviceEvent));
- event->header = ET_Internal;
- event->length = sizeof(DeviceEvent);
- event->time = ms;
- event->deviceid = dev->id;
- event->sourceid = dev->id;
-}
-
-static void
-init_raw(DeviceIntPtr dev, RawDeviceEvent *event, Time ms, int type, int detail)
-{
- memset(event, 0, sizeof(RawDeviceEvent));
- event->header = ET_Internal;
- event->length = sizeof(RawDeviceEvent);
- event->type = ET_RawKeyPress - ET_KeyPress + type;
- event->time = ms;
- event->deviceid = dev->id;
- event->sourceid = dev->id;
- event->detail.button = detail;
-}
-
-static void
-set_raw_valuators(RawDeviceEvent *event, int first, int num, int *valuators, int32_t* data)
-{
- int i;
- for (i = first; i < first + num; i++)
- SetBit(event->valuators.mask, i);
-
- memcpy(&data[first], valuators, num * sizeof(uint32_t));
-}
-
-
-static void
-set_valuators(DeviceIntPtr dev, DeviceEvent* event, int first_valuator,
- int num_valuators, int *valuators)
-{
- int i;
-
- for (i = first_valuator; i < first_valuator + num_valuators; i++)
- {
- SetBit(event->valuators.mask, i);
- if (dev->valuator->mode == Absolute)
- SetBit(event->valuators.mode, i);
- event->valuators.data_frac[i] =
- dev->last.remainder[i] * (1 << 16) * (1 << 16);
- }
-
- memcpy(&event->valuators.data[first_valuator],
- valuators, num_valuators * sizeof(uint32_t));
-
-}
-
-void
-CreateClassesChangedEvent(EventList* event,
- DeviceIntPtr master,
- DeviceIntPtr slave,
- int type)
-{
- int i;
- DeviceChangedEvent *dce;
- CARD32 ms = GetTimeInMillis();
-
- dce = (DeviceChangedEvent*)event->event;
- memset(dce, 0, sizeof(DeviceChangedEvent));
- dce->deviceid = slave->id;
- dce->masterid = master->id;
- dce->header = ET_Internal;
- dce->length = sizeof(DeviceChangedEvent);
- dce->type = ET_DeviceChanged;
- dce->time = ms;
- dce->flags = type;
- dce->flags |= DEVCHANGE_SLAVE_SWITCH;
- dce->sourceid = slave->id;
-
- if (slave->button)
- {
- dce->buttons.num_buttons = slave->button->numButtons;
- for (i = 0; i < dce->buttons.num_buttons; i++)
- dce->buttons.names[i] = slave->button->labels[i];
- }
- if (slave->valuator)
- {
- dce->num_valuators = slave->valuator->numAxes;
- for (i = 0; i < dce->num_valuators; i++)
- {
- dce->valuators[i].min = slave->valuator->axes[i].min_value;
- dce->valuators[i].max = slave->valuator->axes[i].max_value;
- dce->valuators[i].resolution = slave->valuator->axes[i].resolution;
- /* This should, eventually, be a per-axis mode */
- dce->valuators[i].mode = slave->valuator->mode;
- dce->valuators[i].name = slave->valuator->axes[i].label;
- }
- }
- if (slave->key)
- {
- dce->keys.min_keycode = slave->key->xkbInfo->desc->min_key_code;
- dce->keys.max_keycode = slave->key->xkbInfo->desc->max_key_code;
- }
-}
-
-/**
- * Rescale the coord between the two axis ranges.
- */
-static int
-rescaleValuatorAxis(int coord, float remainder, float *remainder_return, AxisInfoPtr from, AxisInfoPtr to,
- int defmax)
-{
- int fmin = 0, tmin = 0, fmax = defmax, tmax = defmax, coord_return;
- float value;
-
- if(from && from->min_value < from->max_value) {
- fmin = from->min_value;
- fmax = from->max_value;
- }
- if(to && to->min_value < to->max_value) {
- tmin = to->min_value;
- tmax = to->max_value;
- }
-
- if(fmin == tmin && fmax == tmax) {
- if (remainder_return)
- *remainder_return = remainder;
- return coord;
- }
-
- if(fmax == fmin) { /* avoid division by 0 */
- if (remainder_return)
- *remainder_return = 0.0;
- return 0;
- }
-
- value = (coord + remainder - fmin) * (tmax - tmin) / (fmax - fmin) + tmin;
- coord_return = lroundf(value);
- if (remainder_return)
- *remainder_return = value - coord_return;
- return coord_return;
-}
-
-/**
- * Update all coordinates when changing to a different SD
- * to ensure that relative reporting will work as expected
- * without loss of precision.
- *
- * pDev->last.valuators will be in absolute device coordinates after this
- * function.
- */
-static void
-updateSlaveDeviceCoords(DeviceIntPtr master, DeviceIntPtr pDev)
-{
- ScreenPtr scr = miPointerGetScreen(pDev);
- int i;
- DeviceIntPtr lastSlave;
-
- /* master->last.valuators[0]/[1] is in screen coords and the actual
- * position of the pointer */
- pDev->last.valuators[0] = master->last.valuators[0];
- pDev->last.valuators[1] = master->last.valuators[1];
-
- if (!pDev->valuator)
- return;
-
- /* scale back to device coordinates */
- if(pDev->valuator->numAxes > 0)
- pDev->last.valuators[0] = rescaleValuatorAxis(pDev->last.valuators[0], pDev->last.remainder[0],
- &pDev->last.remainder[0], NULL, pDev->valuator->axes + 0, scr->width);
- if(pDev->valuator->numAxes > 1)
- pDev->last.valuators[1] = rescaleValuatorAxis(pDev->last.valuators[1], pDev->last.remainder[1],
- &pDev->last.remainder[1], NULL, pDev->valuator->axes + 1, scr->height);
-
- /* calculate the other axis as well based on info from the old
- * slave-device. If the old slave had less axes than this one,
- * last.valuators is reset to 0.
- */
- if ((lastSlave = master->last.slave) && lastSlave->valuator) {
- for (i = 2; i < pDev->valuator->numAxes; i++) {
- if (i >= lastSlave->valuator->numAxes)
- pDev->last.valuators[i] = 0;
- else
- pDev->last.valuators[i] =
- rescaleValuatorAxis(pDev->last.valuators[i],
- pDev->last.remainder[i],
- &pDev->last.remainder[i],
- lastSlave->valuator->axes + i,
- pDev->valuator->axes + i, 0);
- }
- }
-
-}
-
-/**
- * Allocate the motion history buffer.
- */
-void
-AllocateMotionHistory(DeviceIntPtr pDev)
-{
- int size;
- if (pDev->valuator->motion)
- xfree(pDev->valuator->motion);
-
- if (pDev->valuator->numMotionEvents < 1)
- return;
-
- /* An MD must have a motion history size large enough to keep all
- * potential valuators, plus the respective range of the valuators.
- * 3 * INT32 for (min_val, max_val, curr_val))
- */
- if (IsMaster(pDev))
- size = sizeof(INT32) * 3 * MAX_VALUATORS;
- else
- size = sizeof(INT32) * pDev->valuator->numAxes;
-
- size += sizeof(Time);
-
- pDev->valuator->motion = xcalloc(pDev->valuator->numMotionEvents, size);
- pDev->valuator->first_motion = 0;
- pDev->valuator->last_motion = 0;
- if (!pDev->valuator->motion)
- ErrorF("[dix] %s: Failed to alloc motion history (%d bytes).\n",
- pDev->name, size * pDev->valuator->numMotionEvents);
-}
-
-/**
- * Dump the motion history between start and stop into the supplied buffer.
- * Only records the event for a given screen in theory, but in practice, we
- * sort of ignore this.
- *
- * If core is set, we only generate x/y, in INT16, scaled to screen coords.
- */
-int
-GetMotionHistory(DeviceIntPtr pDev, xTimecoord **buff, unsigned long start,
- unsigned long stop, ScreenPtr pScreen, BOOL core)
-{
- char *ibuff = NULL, *obuff;
- int i = 0, ret = 0;
- int j, coord;
- Time current;
- /* The size of a single motion event. */
- int size;
- int dflt;
- AxisInfo from, *to; /* for scaling */
- INT32 *ocbuf, *icbuf; /* pointer to coordinates for copying */
- INT16 *corebuf;
- AxisInfo core_axis = {0};
-
- if (!pDev->valuator || !pDev->valuator->numMotionEvents)
- return 0;
-
- if (core && !pScreen)
- return 0;
-
- if (IsMaster(pDev))
- size = (sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(Time);
- else
- size = (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time);
-
- *buff = xalloc(size * pDev->valuator->numMotionEvents);
- if (!(*buff))
- return 0;
- obuff = (char *)*buff;
-
- for (i = pDev->valuator->first_motion;
- i != pDev->valuator->last_motion;
- i = (i + 1) % pDev->valuator->numMotionEvents) {
- /* We index the input buffer by which element we're accessing, which
- * is not monotonic, and the output buffer by how many events we've
- * written so far. */
- ibuff = (char *) pDev->valuator->motion + (i * size);
- memcpy(&current, ibuff, sizeof(Time));
-
- if (current > stop) {
- return ret;
- }
- else if (current >= start) {
- if (core)
- {
- memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */
-
- icbuf = (INT32*)(ibuff + sizeof(Time));
- corebuf = (INT16*)(obuff + sizeof(Time));
-
- /* fetch x coordinate + range */
- memcpy(&from.min_value, icbuf++, sizeof(INT32));
- memcpy(&from.max_value, icbuf++, sizeof(INT32));
- memcpy(&coord, icbuf++, sizeof(INT32));
-
- /* scale to screen coords */
- to = &core_axis;
- to->max_value = pScreen->width;
- coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, pScreen->width);
-
- memcpy(corebuf, &coord, sizeof(INT16));
- corebuf++;
-
- /* fetch y coordinate + range */
- memcpy(&from.min_value, icbuf++, sizeof(INT32));
- memcpy(&from.max_value, icbuf++, sizeof(INT32));
- memcpy(&coord, icbuf++, sizeof(INT32));
-
- to->max_value = pScreen->height;
- coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, pScreen->height);
- memcpy(corebuf, &coord, sizeof(INT16));
-
- } else if (IsMaster(pDev))
- {
- memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */
-
- ocbuf = (INT32*)(obuff + sizeof(Time));
- icbuf = (INT32*)(ibuff + sizeof(Time));
- for (j = 0; j < MAX_VALUATORS; j++)
- {
- if (j >= pDev->valuator->numAxes)
- break;
-
- /* fetch min/max/coordinate */
- memcpy(&from.min_value, icbuf++, sizeof(INT32));
- memcpy(&from.max_value, icbuf++, sizeof(INT32));
- memcpy(&coord, icbuf++, sizeof(INT32));
-
- to = (j < pDev->valuator->numAxes) ? &pDev->valuator->axes[j] : NULL;
-
- /* x/y scaled to screen if no range is present */
- if (j == 0 && (from.max_value < from.min_value))
- from.max_value = pScreen->width;
- else if (j == 1 && (from.max_value < from.min_value))
- from.max_value = pScreen->height;
-
- if (j == 0 && (to->max_value < to->min_value))
- dflt = pScreen->width;
- else if (j == 1 && (to->max_value < to->min_value))
- dflt = pScreen->height;
- else
- dflt = 0;
-
- /* scale from stored range into current range */
- coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, 0);
- memcpy(ocbuf, &coord, sizeof(INT32));
- ocbuf++;
- }
- } else
- memcpy(obuff, ibuff, size);
-
- /* don't advance by size here. size may be different to the
- * actually written size if the MD has less valuators than MAX */
- if (core)
- obuff += sizeof(INT32) + sizeof(Time);
- else
- obuff += (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time);
- ret++;
- }
- }
-
- return ret;
-}
-
-
-/**
- * Update the motion history for a specific device, with the list of
- * valuators.
- *
- * Layout of the history buffer:
- * for SDs: [time] [val0] [val1] ... [valn]
- * for MDs: [time] [min_val0] [max_val0] [val0] [min_val1] ... [valn]
- *
- * For events that have some valuators unset (first_valuator > 0):
- * min_val == max_val == val == 0.
- */
-static void
-updateMotionHistory(DeviceIntPtr pDev, CARD32 ms, int first_valuator,
- int num_valuators, int *valuators)
-{
- char *buff = (char *) pDev->valuator->motion;
- ValuatorClassPtr v;
- int i;
-
- if (!pDev->valuator->numMotionEvents)
- return;
-
- v = pDev->valuator;
- if (IsMaster(pDev))
- {
- buff += ((sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(CARD32)) *
- v->last_motion;
-
- memcpy(buff, &ms, sizeof(Time));
- buff += sizeof(Time);
-
- memset(buff, 0, sizeof(INT32) * 3 * MAX_VALUATORS);
- buff += 3 * sizeof(INT32) * first_valuator;
-
- for (i = first_valuator; i < first_valuator + num_valuators; i++)
- {
- if (i >= v->numAxes)
- break;
- memcpy(buff, &v->axes[i].min_value, sizeof(INT32));
- buff += sizeof(INT32);
- memcpy(buff, &v->axes[i].max_value, sizeof(INT32));
- buff += sizeof(INT32);
- memcpy(buff, &valuators[i - first_valuator], sizeof(INT32));
- buff += sizeof(INT32);
- }
- } else
- {
-
- buff += ((sizeof(INT32) * pDev->valuator->numAxes) + sizeof(CARD32)) *
- pDev->valuator->last_motion;
-
- memcpy(buff, &ms, sizeof(Time));
- buff += sizeof(Time);
-
- memset(buff, 0, sizeof(INT32) * pDev->valuator->numAxes);
- buff += sizeof(INT32) * first_valuator;
-
- memcpy(buff, valuators, sizeof(INT32) * num_valuators);
- }
-
- pDev->valuator->last_motion = (pDev->valuator->last_motion + 1) %
- pDev->valuator->numMotionEvents;
- /* If we're wrapping around, just keep the circular buffer going. */
- if (pDev->valuator->first_motion == pDev->valuator->last_motion)
- pDev->valuator->first_motion = (pDev->valuator->first_motion + 1) %
- pDev->valuator->numMotionEvents;
-
- return;
-}
-
-
-/**
- * Returns the maximum number of events GetKeyboardEvents,
- * GetKeyboardValuatorEvents, and GetPointerEvents will ever return.
- *
- * This MUST be absolutely constant, from init until exit.
- */
-int
-GetMaximumEventsNum(void) {
- /* One raw event
- * One device event
- * One possible device changed event
- */
- return 3;
-}
-
-
-/**
- * Clip an axis to its bounds, which are declared in the call to
- * InitValuatorAxisClassStruct.
- */
-static void
-clipAxis(DeviceIntPtr pDev, int axisNum, int *val)
-{
- AxisInfoPtr axis;
-
- if (axisNum >= pDev->valuator->numAxes)
- return;
-
- axis = pDev->valuator->axes + axisNum;
-
- /* If a value range is defined, clip. If not, do nothing */
- if (axis->max_value <= axis->min_value)
- return;
-
- if (*val < axis->min_value)
- *val = axis->min_value;
- if (*val > axis->max_value)
- *val = axis->max_value;
-}
-
-/**
- * Clip every axis in the list of valuators to its bounds.
- */
-static void
-clipValuators(DeviceIntPtr pDev, int first_valuator, int num_valuators,
- int *valuators)
-{
- int i;
-
- for (i = 0; i < num_valuators; i++)
- clipAxis(pDev, i + first_valuator, &(valuators[i]));
-}
-
-/**
- * Create the DCCE event (does not update the master's device state yet, this
- * is done in the event processing).
- * Pull in the coordinates from the MD if necessary.
- *
- * @param events Pointer to a pre-allocated event list.
- * @param dev The slave device that generated an event.
- * @param type Either DEVCHANGE_POINTER_EVENT and/or DEVCHANGE_KEYBOARD_EVENT
- * @param num_events The current number of events, returns the number of
- * events if a DCCE was generated.
- * @return The updated @events pointer.
- */
-static EventListPtr
-updateFromMaster(EventListPtr events, DeviceIntPtr dev, int type, int *num_events)
-{
- DeviceIntPtr master;
-
- master = GetMaster(dev, (type & DEVCHANGE_POINTER_EVENT) ? MASTER_POINTER : MASTER_KEYBOARD);
-
- if (master && master->last.slave != dev)
- {
- CreateClassesChangedEvent(events, master, dev, type);
- if (IsPointerDevice(master))
- {
- updateSlaveDeviceCoords(master, dev);
- master->last.numValuators = dev->last.numValuators;
- }
- master->last.slave = dev;
- (*num_events)++;
- events++;
- }
- return events;
-}
-
-/**
- * Move the device's pointer to the position given in the valuators.
- *
- * @param dev The device which's pointer is to be moved.
- * @param x Returns the x position of the pointer after the move.
- * @param y Returns the y position of the pointer after the move.
- * @param first The first valuator in @valuators
- * @param num Total number of valuators in @valuators.
- * @param valuators Valuator data for each axis between @first and
- * @first+@num.
- */
-static void
-moveAbsolute(DeviceIntPtr dev, int *x, int *y,
- int first, int num, int *valuators)
-{
- int i;
-
-
- if (num >= 1 && first == 0)
- *x = *(valuators + 0);
- else
- *x = dev->last.valuators[0];
-
- if (first <= 1 && num >= (2 - first))
- *y = *(valuators + 1 - first);
- else
- *y = dev->last.valuators[1];
-
- clipAxis(dev, 0, x);
- clipAxis(dev, 1, y);
-
- i = (first > 2) ? 0 : 2;
- for (; i < num; i++)
- {
- dev->last.valuators[i + first] = valuators[i];
- clipAxis(dev, i, &dev->last.valuators[i + first]);
- }
-}
-
-/**
- * Move the device's pointer by the values given in @valuators.
- *
- * @param dev The device which's pointer is to be moved.
- * @param x Returns the x position of the pointer after the move.
- * @param y Returns the y position of the pointer after the move.
- * @param first The first valuator in @valuators
- * @param num Total number of valuators in @valuators.
- * @param valuators Valuator data for each axis between @first and
- * @first+@num.
- */
-static void
-moveRelative(DeviceIntPtr dev, int *x, int *y,
- int first, int num, int *valuators)
-{
- int i;
-
- *x = dev->last.valuators[0];
- *y = dev->last.valuators[1];
-
- if (num >= 1 && first == 0)
- *x += *(valuators +0);
-
- if (first <= 1 && num >= (2 - first))
- *y += *(valuators + 1 - first);
-
- /* if attached, clip both x and y to the defined limits (usually
- * co-ord space limit). If it is attached, we need x/y to go over the
- * limits to be able to change screens. */
- if(dev->u.master) {
- clipAxis(dev, 0, x);
- clipAxis(dev, 1, y);
- }
-
- /* calc other axes, clip, drop back into valuators */
- i = (first > 2) ? 0 : 2;
- for (; i < num; i++)
- {
- dev->last.valuators[i + first] += valuators[i];
- clipAxis(dev, i, &dev->last.valuators[i + first]);
- valuators[i] = dev->last.valuators[i + first];
- }
-}
-
-/**
- * Accelerate the data in valuators based on the device's acceleration scheme.
- *
- * @param dev The device which's pointer is to be moved.
- * @param first The first valuator in @valuators
- * @param num Total number of valuators in @valuators.
- * @param valuators Valuator data for each axis between @first and
- * @first+@num.
- * @param ms Current time.
- */
-static void
-accelPointer(DeviceIntPtr dev, int first, int num, int *valuators, CARD32 ms)
-{
- if (dev->valuator->accelScheme.AccelSchemeProc)
- dev->valuator->accelScheme.AccelSchemeProc(dev, first, num, valuators, ms);
-}
-
-/**
- * If we have HW cursors, this actually moves the visible sprite. If not, we
- * just do all the screen crossing, etc.
- *
- * We scale from device to screen coordinates here, call
- * miPointerSetPosition() and then scale back into device coordinates (if
- * needed). miPSP will change x/y if the screen was crossed.
- *
- * @param dev The device to be moved.
- * @param x Pointer to current x-axis value, may be modified.
- * @param y Pointer to current y-axis value, may be modified.
- * @param x_frac Fractional part of current x-axis value, may be modified.
- * @param y_frac Fractional part of current y-axis value, may be modified.
- * @param scr Screen the device's sprite is currently on.
- * @param screenx Screen x coordinate the sprite is on after the update.
- * @param screeny Screen y coordinate the sprite is on after the update.
- * @param screenx_frac Fractional part of screen x coordinate, as above.
- * @param screeny_frac Fractional part of screen y coordinate, as above.
- */
-static void
-positionSprite(DeviceIntPtr dev, int *x, int *y, float x_frac, float y_frac,
- ScreenPtr scr, int *screenx, int *screeny, float *screenx_frac, float *screeny_frac)
-{
- int old_screenx, old_screeny;
-
- /* scale x&y to screen */
- if (dev->valuator->numAxes > 0) {
- *screenx = rescaleValuatorAxis(*x, x_frac, screenx_frac,
- dev->valuator->axes + 0, NULL, scr->width);
- } else {
- *screenx = dev->last.valuators[0];
- *screenx_frac = dev->last.remainder[0];
- }
-
- if (dev->valuator->numAxes > 1) {
- *screeny = rescaleValuatorAxis(*y, y_frac, screeny_frac,
- dev->valuator->axes + 1, NULL, scr->height);
- } else {
- *screeny = dev->last.valuators[1];
- *screeny_frac = dev->last.remainder[1];
- }
-
- /* Hit the left screen edge? */
- if (*screenx <= 0 && *screenx_frac < 0.0f)
- {
- *screenx_frac = 0.0f;
- x_frac = 0.0f;
- }
- if (*screeny <= 0 && *screeny_frac < 0.0f)
- {
- *screeny_frac = 0.0f;
- y_frac = 0.0f;
- }
-
-
- old_screenx = *screenx;
- old_screeny = *screeny;
- /* This takes care of crossing screens for us, as well as clipping
- * to the current screen. */
- miPointerSetPosition(dev, screenx, screeny);
-
- if (dev->u.master) {
- dev->u.master->last.valuators[0] = *screenx;
- dev->u.master->last.valuators[1] = *screeny;
- dev->u.master->last.remainder[0] = *screenx_frac;
- dev->u.master->last.remainder[1] = *screeny_frac;
- }
-
- /* Crossed screen? Scale back to device coordiantes */
- if(*screenx != old_screenx)
- {
- scr = miPointerGetScreen(dev);
- *x = rescaleValuatorAxis(*screenx, *screenx_frac, &x_frac, NULL,
- dev->valuator->axes + 0, scr->width);
- }
- if(*screeny != old_screeny)
- {
- scr = miPointerGetScreen(dev);
- *y = rescaleValuatorAxis(*screeny, *screeny_frac, &y_frac, NULL,
- dev->valuator->axes + 1, scr->height);
- }
-
- /* dropy x/y (device coordinates) back into valuators for next event */
- dev->last.valuators[0] = *x;
- dev->last.valuators[1] = *y;
- dev->last.remainder[0] = x_frac;
- dev->last.remainder[1] = y_frac;
-}
-
-/**
- * Update the motion history for the device and (if appropriate) for its
- * master device.
- * @param dev Slave device to update.
- * @param first First valuator to append to history.
- * @param num Total number of valuators to append to history.
- * @param ms Current time
- */
-static void
-updateHistory(DeviceIntPtr dev, int first, int num, CARD32 ms)
-{
- updateMotionHistory(dev, ms, first, num, &dev->last.valuators[first]);
- if (dev->u.master)
- {
- DeviceIntPtr master = GetMaster(dev, MASTER_POINTER);
- updateMotionHistory(master, ms, first, num, &dev->last.valuators[first]);
- }
-}
-
-/**
- * Convenience wrapper around GetKeyboardValuatorEvents, that takes no
- * valuators.
- */
-int
-GetKeyboardEvents(EventList *events, DeviceIntPtr pDev, int type, int key_code) {
- return GetKeyboardValuatorEvents(events, pDev, type, key_code, 0, 0, NULL);
-}
-
-
-/**
- * Returns a set of keyboard events for KeyPress/KeyRelease, optionally
- * also with valuator events. Handles Xi and XKB.
- *
- * DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
- * event (ProcessOtherEvent).
- *
- * events is not NULL-terminated; the return value is the number of events.
- * The DDX is responsible for allocating the event structure in the first
- * place via GetMaximumEventsNum(), and for freeing it.
- *
- * This function does not change the core keymap to that of the device;
- * that is done by SwitchCoreKeyboard, which is called from
- * mieqProcessInputEvents. If replacing that function, take care to call
- * SetCoreKeyboard before processInputProc, so keymaps are altered to suit.
- */
-int
-GetKeyboardValuatorEvents(EventList *events, DeviceIntPtr pDev, int type,
- int key_code, int first_valuator,
- int num_valuators, int *valuators) {
- int num_events = 0;
- CARD32 ms = 0;
- DeviceEvent *event;
- RawDeviceEvent *raw;
-
- /* refuse events from disabled devices */
- if (!pDev->enabled)
- return 0;
-
- if (!events ||!pDev->key || !pDev->focus || !pDev->kbdfeed ||
- (type != KeyPress && type != KeyRelease) ||
- (key_code < 8 || key_code > 255))
- return 0;
-
- num_events = 1;
-
- events = updateFromMaster(events, pDev, DEVCHANGE_KEYBOARD_EVENT, &num_events);
-
- /* Handle core repeating, via press/release/press/release. */
- if (type == KeyPress && key_is_down(pDev, key_code, KEY_POSTED)) {
- /* If autorepeating is disabled either globally or just for that key,
- * or we have a modifier, don't generate a repeat event. */
- if (!pDev->kbdfeed->ctrl.autoRepeat ||
- !key_autorepeats(pDev, key_code) ||
- pDev->key->xkbInfo->desc->map->modmap[key_code])
- return 0;
- }
-
- ms = GetTimeInMillis();
-
- raw = (RawDeviceEvent*)events->event;
- events++;
- num_events++;
-
- init_raw(pDev, raw, ms, type, key_code);
- set_raw_valuators(raw, first_valuator, num_valuators, valuators,
- raw->valuators.data_raw);
-
- if (num_valuators)
- clipValuators(pDev, first_valuator, num_valuators, valuators);
-
- set_raw_valuators(raw, first_valuator, num_valuators, valuators,
- raw->valuators.data);
-
- event = (DeviceEvent*) events->event;
- init_event(pDev, event, ms);
- event->detail.key = key_code;
-
- if (type == KeyPress) {
- event->type = ET_KeyPress;
- set_key_down(pDev, key_code, KEY_POSTED);
- }
- else if (type == KeyRelease) {
- event->type = ET_KeyRelease;
- set_key_up(pDev, key_code, KEY_POSTED);
- }
-
- if (num_valuators)
- clipValuators(pDev, first_valuator, num_valuators, valuators);
-
- set_valuators(pDev, event, first_valuator, num_valuators, valuators);
-
- return num_events;
-}
-
-/**
- * Initialize an event list and fill with 32 byte sized events.
- * This event list is to be passed into GetPointerEvents() and
- * GetKeyboardEvents().
- *
- * @param num_events Number of elements in list.
- */
-EventListPtr
-InitEventList(int num_events)
-{
- EventListPtr events;
- int i;
-
- events = (EventListPtr)xcalloc(num_events, sizeof(EventList));
- if (!events)
- return NULL;
-
- for (i = 0; i < num_events; i++)
- {
- events[i].evlen = sizeof(InternalEvent);
- events[i].event = xcalloc(1, sizeof(InternalEvent));
- if (!events[i].event)
- {
- /* rollback */
- while(i--)
- xfree(events[i].event);
- xfree(events);
- events = NULL;
- break;
- }
- }
-
- return events;
-}
-
-/**
- * Free an event list.
- *
- * @param list The list to be freed.
- * @param num_events Number of elements in list.
- */
-void
-FreeEventList(EventListPtr list, int num_events)
-{
- if (!list)
- return;
- while(num_events--)
- xfree(list[num_events].event);
- xfree(list);
-}
-
-/**
- * Generate a series of xEvents (filled into the EventList) representing
- * pointer motion, or button presses. Xi and XKB-aware.
- *
- * DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
- * event (ProcessOtherEvent).
- *
- * events is not NULL-terminated; the return value is the number of events.
- * The DDX is responsible for allocating the event structure in the first
- * place via InitEventList() and GetMaximumEventsNum(), and for freeing it.
- *
- * In the generated events rootX/Y will be in absolute screen coords and
- * the valuator information in the absolute or relative device coords.
- *
- * last.valuators[x] of the device is always in absolute device coords.
- * last.valuators[x] of the master device is in absolute screen coords.
- *
- * master->last.valuators[x] for x > 2 is undefined.
- */
-int
-GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
- int flags, int first_valuator, int num_valuators,
- int *valuators) {
- int num_events = 1;
- CARD32 ms;
- DeviceEvent *event;
- RawDeviceEvent *raw;
- int x = 0, y = 0, /* device coords */
- cx, cy; /* only screen coordinates */
- float x_frac = 0.0, y_frac = 0.0, cx_frac, cy_frac;
- ScreenPtr scr = miPointerGetScreen(pDev);
-
- /* refuse events from disabled devices */
- if (!pDev->enabled)
- return 0;
-
- ms = GetTimeInMillis(); /* before pointer update to help precision */
-
- if (!scr || !pDev->valuator || first_valuator < 0 ||
- ((num_valuators + first_valuator) > pDev->valuator->numAxes) ||
- (type != MotionNotify && type != ButtonPress && type != ButtonRelease) ||
- (type != MotionNotify && !pDev->button) ||
- ((type == ButtonPress || type == ButtonRelease) && !buttons) ||
- (type == MotionNotify && num_valuators <= 0))
- return 0;
-
- events = updateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, &num_events);
-
- raw = (RawDeviceEvent*)events->event;
- events++;
- num_events++;
-
- init_raw(pDev, raw, ms, type, buttons);
- set_raw_valuators(raw, first_valuator, num_valuators, valuators,
- raw->valuators.data_raw);
-
- if (flags & POINTER_ABSOLUTE)
- {
- if (flags & POINTER_SCREEN) /* valuators are in screen coords */
- {
-
- if (num_valuators >= 1 && first_valuator == 0)
- valuators[0] = rescaleValuatorAxis(valuators[0], 0.0, &x_frac, NULL,
- pDev->valuator->axes + 0,
- scr->width);
- if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
- valuators[1 - first_valuator] = rescaleValuatorAxis(valuators[1 - first_valuator], 0.0, &y_frac, NULL,
- pDev->valuator->axes + 1,
- scr->height);
- }
-
- moveAbsolute(pDev, &x, &y, first_valuator, num_valuators, valuators);
- } else {
- if (flags & POINTER_ACCELERATE) {
- accelPointer(pDev, first_valuator, num_valuators, valuators, ms);
- /* The pointer acceleration code modifies the fractional part
- * in-place, so we need to extract this information first */
- x_frac = pDev->last.remainder[0];
- y_frac = pDev->last.remainder[1];
- }
- moveRelative(pDev, &x, &y, first_valuator, num_valuators, valuators);
- }
-
- set_raw_valuators(raw, first_valuator, num_valuators, valuators,
- raw->valuators.data);
-
- positionSprite(pDev, &x, &y, x_frac, y_frac, scr, &cx, &cy, &cx_frac, &cy_frac);
- updateHistory(pDev, first_valuator, num_valuators, ms);
-
- /* Update the valuators with the true value sent to the client*/
- if (num_valuators >= 1 && first_valuator == 0)
- valuators[0] = x;
- if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
- valuators[1 - first_valuator] = y;
-
- if (num_valuators)
- clipValuators(pDev, first_valuator, num_valuators, valuators);
-
- event = (DeviceEvent*) events->event;
- init_event(pDev, event, ms);
-
- if (type == MotionNotify) {
- event->type = ET_Motion;
- event->detail.button = 0;
- }
- else {
- if (type == ButtonPress) {
- event->type = ET_ButtonPress;
- pDev->button->postdown[buttons >> 3] |= (1 << (buttons & 7));
- }
- else if (type == ButtonRelease) {
- event->type = ET_ButtonRelease;
- pDev->button->postdown[buttons >> 3] &= ~(1 << (buttons & 7));
- }
- event->detail.button = buttons;
- }
-
- event->root_x = cx; /* root_x/y always in screen coords */
- event->root_y = cy;
- event->root_x_frac = cx_frac;
- event->root_y_frac = cy_frac;
-
- set_valuators(pDev, event, first_valuator, num_valuators, valuators);
-
- return num_events;
-}
-
-
-/**
- * Post ProximityIn/ProximityOut events, accompanied by valuators.
- *
- * events is not NULL-terminated; the return value is the number of events.
- * The DDX is responsible for allocating the event structure in the first
- * place via GetMaximumEventsNum(), and for freeing it.
- */
-int
-GetProximityEvents(EventList *events, DeviceIntPtr pDev, int type,
- int first_valuator, int num_valuators, int *valuators)
-{
- int num_events = 1;
- DeviceEvent *event;
-
- /* refuse events from disabled devices */
- if (!pDev->enabled)
- return 0;
-
- /* Sanity checks. */
- if (type != ProximityIn && type != ProximityOut)
- return 0;
- if (!pDev->valuator)
- return 0;
- /* Do we need to send a DeviceValuator event? */
- if ((pDev->valuator->mode & 1) == Relative)
- num_valuators = 0;
-
- /* You fail. */
- if (first_valuator < 0 ||
- (num_valuators + first_valuator) > pDev->valuator->numAxes)
- return 0;
-
- events = updateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, &num_events);
-
- event = (DeviceEvent *) events->event;
- init_event(pDev, event, GetTimeInMillis());
- event->type = (type == ProximityIn) ? ET_ProximityIn : ET_ProximityOut;
-
- if (num_valuators)
- clipValuators(pDev, first_valuator, num_valuators, valuators);
-
- set_valuators(pDev, event, first_valuator, num_valuators, valuators);
-
- return num_events;
-}
-
-/**
- * Synthesize a single motion event for the core pointer.
- *
- * Used in cursor functions, e.g. when cursor confinement changes, and we need
- * to shift the pointer to get it inside the new bounds.
- */
-void
-PostSyntheticMotion(DeviceIntPtr pDev,
- int x,
- int y,
- int screen,
- unsigned long time)
-{
- DeviceEvent ev;
-
-#ifdef PANORAMIX
- /* Translate back to the sprite screen since processInputProc
- will translate from sprite screen to screen 0 upon reentry
- to the DIX layer. */
- if (!noPanoramiXExtension) {
- x += panoramiXdataPtr[0].x - panoramiXdataPtr[screen].x;
- y += panoramiXdataPtr[0].y - panoramiXdataPtr[screen].y;
- }
-#endif
-
- memset(&ev, 0, sizeof(DeviceEvent));
- init_event(pDev, &ev, time);
- ev.root_x = x;
- ev.root_y = y;
- ev.type = ET_Motion;
- ev.time = time;
-
- /* FIXME: MD/SD considerations? */
- (*pDev->public.processInputProc)((InternalEvent*)&ev, pDev);
-}
+/*
+ * Copyright © 2006 Nokia Corporation
+ * Copyright © 2006-2007 Daniel Stone
+ * Copyright © 2008 Red Hat, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Daniel Stone <daniel@fooishbar.org>
+ * Peter Hutterer <peter.hutterer@who-t.net>
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/keysym.h>
+#include <X11/Xproto.h>
+
+#include "misc.h"
+#include "resource.h"
+#include "inputstr.h"
+#include "scrnintstr.h"
+#include "cursorstr.h"
+#include "dixstruct.h"
+#include "globals.h"
+#include "dixevents.h"
+#include "mipointer.h"
+#include "eventstr.h"
+#include "eventconvert.h"
+
+#include <X11/extensions/XKBproto.h>
+#include "xkbsrv.h"
+
+#ifdef PANORAMIX
+#include "panoramiX.h"
+#include "panoramiXsrv.h"
+#endif
+
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include "exglobals.h"
+#include "exevents.h"
+#include "exglobals.h"
+#include "extnsionst.h"
+#include "listdev.h" /* for sizing up DeviceClassesChangedEvent */
+
+#ifdef _MSC_VER
+#include <math.h>
+
+float roundf(float f)
+{
+ return ((f<0.0f) ? ceil(f-.5) : floor (f+.5));
+}
+#define lroundf(val) ((int)roundf(val))
+#endif
+
+/* Number of motion history events to store. */
+#define MOTION_HISTORY_SIZE 256
+
+/* InputEventList is the container list for all input events generated by the
+ * DDX. The DDX is expected to call GetEventList() and then pass the list into
+ * Get{Pointer|Keyboard}Events.
+ */
+EventListPtr InputEventList = NULL;
+int InputEventListLen = 0;
+
+int
+GetEventList(EventListPtr* list)
+{
+ *list = InputEventList;
+ return InputEventListLen;
+}
+
+/**
+ * Pick some arbitrary size for Xi motion history.
+ */
+int
+GetMotionHistorySize(void)
+{
+ return MOTION_HISTORY_SIZE;
+}
+
+void
+set_key_down(DeviceIntPtr pDev, int key_code, int type)
+{
+ if (type == KEY_PROCESSED)
+ pDev->key->down[key_code >> 3] |= (1 << (key_code & 7));
+ else
+ pDev->key->postdown[key_code >> 3] |= (1 << (key_code & 7));
+}
+
+void
+set_key_up(DeviceIntPtr pDev, int key_code, int type)
+{
+ if (type == KEY_PROCESSED)
+ pDev->key->down[key_code >> 3] &= ~(1 << (key_code & 7));
+ else
+ pDev->key->postdown[key_code >> 3] &= ~(1 << (key_code & 7));
+}
+
+Bool
+key_is_down(DeviceIntPtr pDev, int key_code, int type)
+{
+ int ret = 0;
+
+ if (type & KEY_PROCESSED)
+ ret |= !!(pDev->key->down[key_code >> 3] & (1 << (key_code & 7)));
+ else if (type & KEY_POSTED)
+ ret |= !!(pDev->key->postdown[key_code >> 3] & (1 << (key_code & 7)));
+
+ return ret;
+}
+
+static Bool
+key_autorepeats(DeviceIntPtr pDev, int key_code)
+{
+ return !!(pDev->kbdfeed->ctrl.autoRepeats[key_code >> 3] &
+ (1 << (key_code & 7)));
+}
+
+static void
+init_event(DeviceIntPtr dev, DeviceEvent* event, Time ms)
+{
+ memset(event, 0, sizeof(DeviceEvent));
+ event->header = ET_Internal;
+ event->length = sizeof(DeviceEvent);
+ event->time = ms;
+ event->deviceid = dev->id;
+ event->sourceid = dev->id;
+}
+
+static void
+init_raw(DeviceIntPtr dev, RawDeviceEvent *event, Time ms, int type, int detail)
+{
+ memset(event, 0, sizeof(RawDeviceEvent));
+ event->header = ET_Internal;
+ event->length = sizeof(RawDeviceEvent);
+ event->type = ET_RawKeyPress - ET_KeyPress + type;
+ event->time = ms;
+ event->deviceid = dev->id;
+ event->sourceid = dev->id;
+ event->detail.button = detail;
+}
+
+static void
+set_raw_valuators(RawDeviceEvent *event, int first, int num, int *valuators, int32_t* data)
+{
+ int i;
+ for (i = first; i < first + num; i++)
+ SetBit(event->valuators.mask, i);
+
+ memcpy(&data[first], valuators, num * sizeof(uint32_t));
+}
+
+
+static void
+set_valuators(DeviceIntPtr dev, DeviceEvent* event, int first_valuator,
+ int num_valuators, int *valuators)
+{
+ int i;
+
+ for (i = first_valuator; i < first_valuator + num_valuators; i++)
+ {
+ SetBit(event->valuators.mask, i);
+ if (dev->valuator->mode == Absolute)
+ SetBit(event->valuators.mode, i);
+ event->valuators.data_frac[i] =
+ dev->last.remainder[i] * (1 << 16) * (1 << 16);
+ }
+
+ memcpy(&event->valuators.data[first_valuator],
+ valuators, num_valuators * sizeof(uint32_t));
+
+}
+
+void
+CreateClassesChangedEvent(EventList* event,
+ DeviceIntPtr master,
+ DeviceIntPtr slave,
+ int type)
+{
+ int i;
+ DeviceChangedEvent *dce;
+ CARD32 ms = GetTimeInMillis();
+
+ dce = (DeviceChangedEvent*)event->event;
+ memset(dce, 0, sizeof(DeviceChangedEvent));
+ dce->deviceid = slave->id;
+ dce->masterid = master->id;
+ dce->header = ET_Internal;
+ dce->length = sizeof(DeviceChangedEvent);
+ dce->type = ET_DeviceChanged;
+ dce->time = ms;
+ dce->flags = type;
+ dce->flags |= DEVCHANGE_SLAVE_SWITCH;
+ dce->sourceid = slave->id;
+
+ if (slave->button)
+ {
+ dce->buttons.num_buttons = slave->button->numButtons;
+ for (i = 0; i < dce->buttons.num_buttons; i++)
+ dce->buttons.names[i] = slave->button->labels[i];
+ }
+ if (slave->valuator)
+ {
+ dce->num_valuators = slave->valuator->numAxes;
+ for (i = 0; i < dce->num_valuators; i++)
+ {
+ dce->valuators[i].min = slave->valuator->axes[i].min_value;
+ dce->valuators[i].max = slave->valuator->axes[i].max_value;
+ dce->valuators[i].resolution = slave->valuator->axes[i].resolution;
+ /* This should, eventually, be a per-axis mode */
+ dce->valuators[i].mode = slave->valuator->mode;
+ dce->valuators[i].name = slave->valuator->axes[i].label;
+ }
+ }
+ if (slave->key)
+ {
+ dce->keys.min_keycode = slave->key->xkbInfo->desc->min_key_code;
+ dce->keys.max_keycode = slave->key->xkbInfo->desc->max_key_code;
+ }
+}
+
+/**
+ * Rescale the coord between the two axis ranges.
+ */
+static int
+rescaleValuatorAxis(int coord, float remainder, float *remainder_return, AxisInfoPtr from, AxisInfoPtr to,
+ int defmax)
+{
+ int fmin = 0, tmin = 0, fmax = defmax, tmax = defmax, coord_return;
+ float value;
+
+ if(from && from->min_value < from->max_value) {
+ fmin = from->min_value;
+ fmax = from->max_value;
+ }
+ if(to && to->min_value < to->max_value) {
+ tmin = to->min_value;
+ tmax = to->max_value;
+ }
+
+ if(fmin == tmin && fmax == tmax) {
+ if (remainder_return)
+ *remainder_return = remainder;
+ return coord;
+ }
+
+ if(fmax == fmin) { /* avoid division by 0 */
+ if (remainder_return)
+ *remainder_return = 0.0;
+ return 0;
+ }
+
+ value = (coord + remainder - fmin) * (tmax - tmin) / (fmax - fmin) + tmin;
+ coord_return = lroundf(value);
+ if (remainder_return)
+ *remainder_return = value - coord_return;
+ return coord_return;
+}
+
+/**
+ * Update all coordinates when changing to a different SD
+ * to ensure that relative reporting will work as expected
+ * without loss of precision.
+ *
+ * pDev->last.valuators will be in absolute device coordinates after this
+ * function.
+ */
+static void
+updateSlaveDeviceCoords(DeviceIntPtr master, DeviceIntPtr pDev)
+{
+ ScreenPtr scr = miPointerGetScreen(pDev);
+ int i;
+ DeviceIntPtr lastSlave;
+
+ /* master->last.valuators[0]/[1] is in screen coords and the actual
+ * position of the pointer */
+ pDev->last.valuators[0] = master->last.valuators[0];
+ pDev->last.valuators[1] = master->last.valuators[1];
+
+ if (!pDev->valuator)
+ return;
+
+ /* scale back to device coordinates */
+ if(pDev->valuator->numAxes > 0)
+ pDev->last.valuators[0] = rescaleValuatorAxis(pDev->last.valuators[0], pDev->last.remainder[0],
+ &pDev->last.remainder[0], NULL, pDev->valuator->axes + 0, scr->width);
+ if(pDev->valuator->numAxes > 1)
+ pDev->last.valuators[1] = rescaleValuatorAxis(pDev->last.valuators[1], pDev->last.remainder[1],
+ &pDev->last.remainder[1], NULL, pDev->valuator->axes + 1, scr->height);
+
+ /* calculate the other axis as well based on info from the old
+ * slave-device. If the old slave had less axes than this one,
+ * last.valuators is reset to 0.
+ */
+ if ((lastSlave = master->last.slave) && lastSlave->valuator) {
+ for (i = 2; i < pDev->valuator->numAxes; i++) {
+ if (i >= lastSlave->valuator->numAxes)
+ pDev->last.valuators[i] = 0;
+ else
+ pDev->last.valuators[i] =
+ rescaleValuatorAxis(pDev->last.valuators[i],
+ pDev->last.remainder[i],
+ &pDev->last.remainder[i],
+ lastSlave->valuator->axes + i,
+ pDev->valuator->axes + i, 0);
+ }
+ }
+
+}
+
+/**
+ * Allocate the motion history buffer.
+ */
+void
+AllocateMotionHistory(DeviceIntPtr pDev)
+{
+ int size;
+ if (pDev->valuator->motion)
+ xfree(pDev->valuator->motion);
+
+ if (pDev->valuator->numMotionEvents < 1)
+ return;
+
+ /* An MD must have a motion history size large enough to keep all
+ * potential valuators, plus the respective range of the valuators.
+ * 3 * INT32 for (min_val, max_val, curr_val))
+ */
+ if (IsMaster(pDev))
+ size = sizeof(INT32) * 3 * MAX_VALUATORS;
+ else
+ size = sizeof(INT32) * pDev->valuator->numAxes;
+
+ size += sizeof(Time);
+
+ pDev->valuator->motion = xcalloc(pDev->valuator->numMotionEvents, size);
+ pDev->valuator->first_motion = 0;
+ pDev->valuator->last_motion = 0;
+ if (!pDev->valuator->motion)
+ ErrorF("[dix] %s: Failed to alloc motion history (%d bytes).\n",
+ pDev->name, size * pDev->valuator->numMotionEvents);
+}
+
+/**
+ * Dump the motion history between start and stop into the supplied buffer.
+ * Only records the event for a given screen in theory, but in practice, we
+ * sort of ignore this.
+ *
+ * If core is set, we only generate x/y, in INT16, scaled to screen coords.
+ */
+int
+GetMotionHistory(DeviceIntPtr pDev, xTimecoord **buff, unsigned long start,
+ unsigned long stop, ScreenPtr pScreen, BOOL core)
+{
+ char *ibuff = NULL, *obuff;
+ int i = 0, ret = 0;
+ int j, coord;
+ Time current;
+ /* The size of a single motion event. */
+ int size;
+ int dflt;
+ AxisInfo from, *to; /* for scaling */
+ INT32 *ocbuf, *icbuf; /* pointer to coordinates for copying */
+ INT16 *corebuf;
+ AxisInfo core_axis = {0};
+
+ if (!pDev->valuator || !pDev->valuator->numMotionEvents)
+ return 0;
+
+ if (core && !pScreen)
+ return 0;
+
+ if (IsMaster(pDev))
+ size = (sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(Time);
+ else
+ size = (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time);
+
+ *buff = xalloc(size * pDev->valuator->numMotionEvents);
+ if (!(*buff))
+ return 0;
+ obuff = (char *)*buff;
+
+ for (i = pDev->valuator->first_motion;
+ i != pDev->valuator->last_motion;
+ i = (i + 1) % pDev->valuator->numMotionEvents) {
+ /* We index the input buffer by which element we're accessing, which
+ * is not monotonic, and the output buffer by how many events we've
+ * written so far. */
+ ibuff = (char *) pDev->valuator->motion + (i * size);
+ memcpy(&current, ibuff, sizeof(Time));
+
+ if (current > stop) {
+ return ret;
+ }
+ else if (current >= start) {
+ if (core)
+ {
+ memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */
+
+ icbuf = (INT32*)(ibuff + sizeof(Time));
+ corebuf = (INT16*)(obuff + sizeof(Time));
+
+ /* fetch x coordinate + range */
+ memcpy(&from.min_value, icbuf++, sizeof(INT32));
+ memcpy(&from.max_value, icbuf++, sizeof(INT32));
+ memcpy(&coord, icbuf++, sizeof(INT32));
+
+ /* scale to screen coords */
+ to = &core_axis;
+ to->max_value = pScreen->width;
+ coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, pScreen->width);
+
+ memcpy(corebuf, &coord, sizeof(INT16));
+ corebuf++;
+
+ /* fetch y coordinate + range */
+ memcpy(&from.min_value, icbuf++, sizeof(INT32));
+ memcpy(&from.max_value, icbuf++, sizeof(INT32));
+ memcpy(&coord, icbuf++, sizeof(INT32));
+
+ to->max_value = pScreen->height;
+ coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, pScreen->height);
+ memcpy(corebuf, &coord, sizeof(INT16));
+
+ } else if (IsMaster(pDev))
+ {
+ memcpy(obuff, ibuff, sizeof(Time)); /* copy timestamp */
+
+ ocbuf = (INT32*)(obuff + sizeof(Time));
+ icbuf = (INT32*)(ibuff + sizeof(Time));
+ for (j = 0; j < MAX_VALUATORS; j++)
+ {
+ if (j >= pDev->valuator->numAxes)
+ break;
+
+ /* fetch min/max/coordinate */
+ memcpy(&from.min_value, icbuf++, sizeof(INT32));
+ memcpy(&from.max_value, icbuf++, sizeof(INT32));
+ memcpy(&coord, icbuf++, sizeof(INT32));
+
+ to = (j < pDev->valuator->numAxes) ? &pDev->valuator->axes[j] : NULL;
+
+ /* x/y scaled to screen if no range is present */
+ if (j == 0 && (from.max_value < from.min_value))
+ from.max_value = pScreen->width;
+ else if (j == 1 && (from.max_value < from.min_value))
+ from.max_value = pScreen->height;
+
+ if (j == 0 && (to->max_value < to->min_value))
+ dflt = pScreen->width;
+ else if (j == 1 && (to->max_value < to->min_value))
+ dflt = pScreen->height;
+ else
+ dflt = 0;
+
+ /* scale from stored range into current range */
+ coord = rescaleValuatorAxis(coord, 0.0, NULL, &from, to, 0);
+ memcpy(ocbuf, &coord, sizeof(INT32));
+ ocbuf++;
+ }
+ } else
+ memcpy(obuff, ibuff, size);
+
+ /* don't advance by size here. size may be different to the
+ * actually written size if the MD has less valuators than MAX */
+ if (core)
+ obuff += sizeof(INT32) + sizeof(Time);
+ else
+ obuff += (sizeof(INT32) * pDev->valuator->numAxes) + sizeof(Time);
+ ret++;
+ }
+ }
+
+ return ret;
+}
+
+
+/**
+ * Update the motion history for a specific device, with the list of
+ * valuators.
+ *
+ * Layout of the history buffer:
+ * for SDs: [time] [val0] [val1] ... [valn]
+ * for MDs: [time] [min_val0] [max_val0] [val0] [min_val1] ... [valn]
+ *
+ * For events that have some valuators unset (first_valuator > 0):
+ * min_val == max_val == val == 0.
+ */
+static void
+updateMotionHistory(DeviceIntPtr pDev, CARD32 ms, int first_valuator,
+ int num_valuators, int *valuators)
+{
+ char *buff = (char *) pDev->valuator->motion;
+ ValuatorClassPtr v;
+ int i;
+
+ if (!pDev->valuator->numMotionEvents)
+ return;
+
+ v = pDev->valuator;
+ if (IsMaster(pDev))
+ {
+ buff += ((sizeof(INT32) * 3 * MAX_VALUATORS) + sizeof(CARD32)) *
+ v->last_motion;
+
+ memcpy(buff, &ms, sizeof(Time));
+ buff += sizeof(Time);
+
+ memset(buff, 0, sizeof(INT32) * 3 * MAX_VALUATORS);
+ buff += 3 * sizeof(INT32) * first_valuator;
+
+ for (i = first_valuator; i < first_valuator + num_valuators; i++)
+ {
+ if (i >= v->numAxes)
+ break;
+ memcpy(buff, &v->axes[i].min_value, sizeof(INT32));
+ buff += sizeof(INT32);
+ memcpy(buff, &v->axes[i].max_value, sizeof(INT32));
+ buff += sizeof(INT32);
+ memcpy(buff, &valuators[i - first_valuator], sizeof(INT32));
+ buff += sizeof(INT32);
+ }
+ } else
+ {
+
+ buff += ((sizeof(INT32) * pDev->valuator->numAxes) + sizeof(CARD32)) *
+ pDev->valuator->last_motion;
+
+ memcpy(buff, &ms, sizeof(Time));
+ buff += sizeof(Time);
+
+ memset(buff, 0, sizeof(INT32) * pDev->valuator->numAxes);
+ buff += sizeof(INT32) * first_valuator;
+
+ memcpy(buff, valuators, sizeof(INT32) * num_valuators);
+ }
+
+ pDev->valuator->last_motion = (pDev->valuator->last_motion + 1) %
+ pDev->valuator->numMotionEvents;
+ /* If we're wrapping around, just keep the circular buffer going. */
+ if (pDev->valuator->first_motion == pDev->valuator->last_motion)
+ pDev->valuator->first_motion = (pDev->valuator->first_motion + 1) %
+ pDev->valuator->numMotionEvents;
+
+ return;
+}
+
+
+/**
+ * Returns the maximum number of events GetKeyboardEvents,
+ * GetKeyboardValuatorEvents, and GetPointerEvents will ever return.
+ *
+ * This MUST be absolutely constant, from init until exit.
+ */
+int
+GetMaximumEventsNum(void) {
+ /* One raw event
+ * One device event
+ * One possible device changed event
+ */
+ return 3;
+}
+
+
+/**
+ * Clip an axis to its bounds, which are declared in the call to
+ * InitValuatorAxisClassStruct.
+ */
+static void
+clipAxis(DeviceIntPtr pDev, int axisNum, int *val)
+{
+ AxisInfoPtr axis;
+
+ if (axisNum >= pDev->valuator->numAxes)
+ return;
+
+ axis = pDev->valuator->axes + axisNum;
+
+ /* If a value range is defined, clip. If not, do nothing */
+ if (axis->max_value <= axis->min_value)
+ return;
+
+ if (*val < axis->min_value)
+ *val = axis->min_value;
+ if (*val > axis->max_value)
+ *val = axis->max_value;
+}
+
+/**
+ * Clip every axis in the list of valuators to its bounds.
+ */
+static void
+clipValuators(DeviceIntPtr pDev, int first_valuator, int num_valuators,
+ int *valuators)
+{
+ int i;
+
+ for (i = 0; i < num_valuators; i++)
+ clipAxis(pDev, i + first_valuator, &(valuators[i]));
+}
+
+/**
+ * Create the DCCE event (does not update the master's device state yet, this
+ * is done in the event processing).
+ * Pull in the coordinates from the MD if necessary.
+ *
+ * @param events Pointer to a pre-allocated event list.
+ * @param dev The slave device that generated an event.
+ * @param type Either DEVCHANGE_POINTER_EVENT and/or DEVCHANGE_KEYBOARD_EVENT
+ * @param num_events The current number of events, returns the number of
+ * events if a DCCE was generated.
+ * @return The updated @events pointer.
+ */
+static EventListPtr
+updateFromMaster(EventListPtr events, DeviceIntPtr dev, int type, int *num_events)
+{
+ DeviceIntPtr master;
+
+ master = GetMaster(dev, (type & DEVCHANGE_POINTER_EVENT) ? MASTER_POINTER : MASTER_KEYBOARD);
+
+ if (master && master->last.slave != dev)
+ {
+ CreateClassesChangedEvent(events, master, dev, type);
+ if (IsPointerDevice(master))
+ {
+ updateSlaveDeviceCoords(master, dev);
+ master->last.numValuators = dev->last.numValuators;
+ }
+ master->last.slave = dev;
+ (*num_events)++;
+ events++;
+ }
+ return events;
+}
+
+/**
+ * Move the device's pointer to the position given in the valuators.
+ *
+ * @param dev The device which's pointer is to be moved.
+ * @param x Returns the x position of the pointer after the move.
+ * @param y Returns the y position of the pointer after the move.
+ * @param first The first valuator in @valuators
+ * @param num Total number of valuators in @valuators.
+ * @param valuators Valuator data for each axis between @first and
+ * @first+@num.
+ */
+static void
+moveAbsolute(DeviceIntPtr dev, int *x, int *y,
+ int first, int num, int *valuators)
+{
+ int i;
+
+
+ if (num >= 1 && first == 0)
+ *x = *(valuators + 0);
+ else
+ *x = dev->last.valuators[0];
+
+ if (first <= 1 && num >= (2 - first))
+ *y = *(valuators + 1 - first);
+ else
+ *y = dev->last.valuators[1];
+
+ clipAxis(dev, 0, x);
+ clipAxis(dev, 1, y);
+
+ i = (first > 2) ? 0 : 2;
+ for (; i < num; i++)
+ {
+ dev->last.valuators[i + first] = valuators[i];
+ clipAxis(dev, i, &dev->last.valuators[i + first]);
+ }
+}
+
+/**
+ * Move the device's pointer by the values given in @valuators.
+ *
+ * @param dev The device which's pointer is to be moved.
+ * @param x Returns the x position of the pointer after the move.
+ * @param y Returns the y position of the pointer after the move.
+ * @param first The first valuator in @valuators
+ * @param num Total number of valuators in @valuators.
+ * @param valuators Valuator data for each axis between @first and
+ * @first+@num.
+ */
+static void
+moveRelative(DeviceIntPtr dev, int *x, int *y,
+ int first, int num, int *valuators)
+{
+ int i;
+
+ *x = dev->last.valuators[0];
+ *y = dev->last.valuators[1];
+
+ if (num >= 1 && first == 0)
+ *x += *(valuators +0);
+
+ if (first <= 1 && num >= (2 - first))
+ *y += *(valuators + 1 - first);
+
+ /* if attached, clip both x and y to the defined limits (usually
+ * co-ord space limit). If it is attached, we need x/y to go over the
+ * limits to be able to change screens. */
+ if(dev->u.master) {
+ clipAxis(dev, 0, x);
+ clipAxis(dev, 1, y);
+ }
+
+ /* calc other axes, clip, drop back into valuators */
+ i = (first > 2) ? 0 : 2;
+ for (; i < num; i++)
+ {
+ dev->last.valuators[i + first] += valuators[i];
+ clipAxis(dev, i, &dev->last.valuators[i + first]);
+ valuators[i] = dev->last.valuators[i + first];
+ }
+}
+
+/**
+ * Accelerate the data in valuators based on the device's acceleration scheme.
+ *
+ * @param dev The device which's pointer is to be moved.
+ * @param first The first valuator in @valuators
+ * @param num Total number of valuators in @valuators.
+ * @param valuators Valuator data for each axis between @first and
+ * @first+@num.
+ * @param ms Current time.
+ */
+static void
+accelPointer(DeviceIntPtr dev, int first, int num, int *valuators, CARD32 ms)
+{
+ if (dev->valuator->accelScheme.AccelSchemeProc)
+ dev->valuator->accelScheme.AccelSchemeProc(dev, first, num, valuators, ms);
+}
+
+/**
+ * If we have HW cursors, this actually moves the visible sprite. If not, we
+ * just do all the screen crossing, etc.
+ *
+ * We scale from device to screen coordinates here, call
+ * miPointerSetPosition() and then scale back into device coordinates (if
+ * needed). miPSP will change x/y if the screen was crossed.
+ *
+ * @param dev The device to be moved.
+ * @param x Pointer to current x-axis value, may be modified.
+ * @param y Pointer to current y-axis value, may be modified.
+ * @param x_frac Fractional part of current x-axis value, may be modified.
+ * @param y_frac Fractional part of current y-axis value, may be modified.
+ * @param scr Screen the device's sprite is currently on.
+ * @param screenx Screen x coordinate the sprite is on after the update.
+ * @param screeny Screen y coordinate the sprite is on after the update.
+ * @param screenx_frac Fractional part of screen x coordinate, as above.
+ * @param screeny_frac Fractional part of screen y coordinate, as above.
+ */
+static void
+positionSprite(DeviceIntPtr dev, int *x, int *y, float x_frac, float y_frac,
+ ScreenPtr scr, int *screenx, int *screeny, float *screenx_frac, float *screeny_frac)
+{
+ int old_screenx, old_screeny;
+
+ /* scale x&y to screen */
+ if (dev->valuator->numAxes > 0) {
+ *screenx = rescaleValuatorAxis(*x, x_frac, screenx_frac,
+ dev->valuator->axes + 0, NULL, scr->width);
+ } else {
+ *screenx = dev->last.valuators[0];
+ *screenx_frac = dev->last.remainder[0];
+ }
+
+ if (dev->valuator->numAxes > 1) {
+ *screeny = rescaleValuatorAxis(*y, y_frac, screeny_frac,
+ dev->valuator->axes + 1, NULL, scr->height);
+ } else {
+ *screeny = dev->last.valuators[1];
+ *screeny_frac = dev->last.remainder[1];
+ }
+
+ /* Hit the left screen edge? */
+ if (*screenx <= 0 && *screenx_frac < 0.0f)
+ {
+ *screenx_frac = 0.0f;
+ x_frac = 0.0f;
+ }
+ if (*screeny <= 0 && *screeny_frac < 0.0f)
+ {
+ *screeny_frac = 0.0f;
+ y_frac = 0.0f;
+ }
+
+
+ old_screenx = *screenx;
+ old_screeny = *screeny;
+ /* This takes care of crossing screens for us, as well as clipping
+ * to the current screen. */
+ miPointerSetPosition(dev, screenx, screeny);
+
+ if (dev->u.master) {
+ dev->u.master->last.valuators[0] = *screenx;
+ dev->u.master->last.valuators[1] = *screeny;
+ dev->u.master->last.remainder[0] = *screenx_frac;
+ dev->u.master->last.remainder[1] = *screeny_frac;
+ }
+
+ /* Crossed screen? Scale back to device coordiantes */
+ if(*screenx != old_screenx)
+ {
+ scr = miPointerGetScreen(dev);
+ *x = rescaleValuatorAxis(*screenx, *screenx_frac, &x_frac, NULL,
+ dev->valuator->axes + 0, scr->width);
+ }
+ if(*screeny != old_screeny)
+ {
+ scr = miPointerGetScreen(dev);
+ *y = rescaleValuatorAxis(*screeny, *screeny_frac, &y_frac, NULL,
+ dev->valuator->axes + 1, scr->height);
+ }
+
+ /* dropy x/y (device coordinates) back into valuators for next event */
+ dev->last.valuators[0] = *x;
+ dev->last.valuators[1] = *y;
+ dev->last.remainder[0] = x_frac;
+ dev->last.remainder[1] = y_frac;
+}
+
+/**
+ * Update the motion history for the device and (if appropriate) for its
+ * master device.
+ * @param dev Slave device to update.
+ * @param first First valuator to append to history.
+ * @param num Total number of valuators to append to history.
+ * @param ms Current time
+ */
+static void
+updateHistory(DeviceIntPtr dev, int first, int num, CARD32 ms)
+{
+ updateMotionHistory(dev, ms, first, num, &dev->last.valuators[first]);
+ if (dev->u.master)
+ {
+ DeviceIntPtr master = GetMaster(dev, MASTER_POINTER);
+ updateMotionHistory(master, ms, first, num, &dev->last.valuators[first]);
+ }
+}
+
+/**
+ * Convenience wrapper around GetKeyboardValuatorEvents, that takes no
+ * valuators.
+ */
+int
+GetKeyboardEvents(EventList *events, DeviceIntPtr pDev, int type, int key_code) {
+ return GetKeyboardValuatorEvents(events, pDev, type, key_code, 0, 0, NULL);
+}
+
+
+/**
+ * Returns a set of keyboard events for KeyPress/KeyRelease, optionally
+ * also with valuator events. Handles Xi and XKB.
+ *
+ * DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
+ * event (ProcessOtherEvent).
+ *
+ * events is not NULL-terminated; the return value is the number of events.
+ * The DDX is responsible for allocating the event structure in the first
+ * place via GetMaximumEventsNum(), and for freeing it.
+ *
+ * This function does not change the core keymap to that of the device;
+ * that is done by SwitchCoreKeyboard, which is called from
+ * mieqProcessInputEvents. If replacing that function, take care to call
+ * SetCoreKeyboard before processInputProc, so keymaps are altered to suit.
+ */
+int
+GetKeyboardValuatorEvents(EventList *events, DeviceIntPtr pDev, int type,
+ int key_code, int first_valuator,
+ int num_valuators, int *valuators) {
+ int num_events = 0;
+ CARD32 ms = 0;
+ DeviceEvent *event;
+ RawDeviceEvent *raw;
+
+ /* refuse events from disabled devices */
+ if (!pDev->enabled)
+ return 0;
+
+ if (!events ||!pDev->key || !pDev->focus || !pDev->kbdfeed ||
+ (type != KeyPress && type != KeyRelease) ||
+ (key_code < 8 || key_code > 255))
+ return 0;
+
+ num_events = 1;
+
+ events = updateFromMaster(events, pDev, DEVCHANGE_KEYBOARD_EVENT, &num_events);
+
+ /* Handle core repeating, via press/release/press/release. */
+ if (type == KeyPress && key_is_down(pDev, key_code, KEY_POSTED)) {
+ /* If autorepeating is disabled either globally or just for that key,
+ * or we have a modifier, don't generate a repeat event. */
+ if (!pDev->kbdfeed->ctrl.autoRepeat ||
+ !key_autorepeats(pDev, key_code) ||
+ pDev->key->xkbInfo->desc->map->modmap[key_code])
+ return 0;
+ }
+
+ ms = GetTimeInMillis();
+
+ raw = (RawDeviceEvent*)events->event;
+ events++;
+ num_events++;
+
+ init_raw(pDev, raw, ms, type, key_code);
+ set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+ raw->valuators.data_raw);
+
+ if (num_valuators)
+ clipValuators(pDev, first_valuator, num_valuators, valuators);
+
+ set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+ raw->valuators.data);
+
+ event = (DeviceEvent*) events->event;
+ init_event(pDev, event, ms);
+ event->detail.key = key_code;
+
+ if (type == KeyPress) {
+ event->type = ET_KeyPress;
+ set_key_down(pDev, key_code, KEY_POSTED);
+ }
+ else if (type == KeyRelease) {
+ event->type = ET_KeyRelease;
+ set_key_up(pDev, key_code, KEY_POSTED);
+ }
+
+ if (num_valuators)
+ clipValuators(pDev, first_valuator, num_valuators, valuators);
+
+ set_valuators(pDev, event, first_valuator, num_valuators, valuators);
+
+ return num_events;
+}
+
+/**
+ * Initialize an event list and fill with 32 byte sized events.
+ * This event list is to be passed into GetPointerEvents() and
+ * GetKeyboardEvents().
+ *
+ * @param num_events Number of elements in list.
+ */
+EventListPtr
+InitEventList(int num_events)
+{
+ EventListPtr events;
+ int i;
+
+ events = (EventListPtr)xcalloc(num_events, sizeof(EventList));
+ if (!events)
+ return NULL;
+
+ for (i = 0; i < num_events; i++)
+ {
+ events[i].evlen = sizeof(InternalEvent);
+ events[i].event = xcalloc(1, sizeof(InternalEvent));
+ if (!events[i].event)
+ {
+ /* rollback */
+ while(i--)
+ xfree(events[i].event);
+ xfree(events);
+ events = NULL;
+ break;
+ }
+ }
+
+ return events;
+}
+
+/**
+ * Free an event list.
+ *
+ * @param list The list to be freed.
+ * @param num_events Number of elements in list.
+ */
+void
+FreeEventList(EventListPtr list, int num_events)
+{
+ if (!list)
+ return;
+ while(num_events--)
+ xfree(list[num_events].event);
+ xfree(list);
+}
+
+/**
+ * Generate a series of xEvents (filled into the EventList) representing
+ * pointer motion, or button presses. Xi and XKB-aware.
+ *
+ * DOES NOT GENERATE CORE EVENTS! Core events are created when processing the
+ * event (ProcessOtherEvent).
+ *
+ * events is not NULL-terminated; the return value is the number of events.
+ * The DDX is responsible for allocating the event structure in the first
+ * place via InitEventList() and GetMaximumEventsNum(), and for freeing it.
+ *
+ * In the generated events rootX/Y will be in absolute screen coords and
+ * the valuator information in the absolute or relative device coords.
+ *
+ * last.valuators[x] of the device is always in absolute device coords.
+ * last.valuators[x] of the master device is in absolute screen coords.
+ *
+ * master->last.valuators[x] for x > 2 is undefined.
+ */
+int
+GetPointerEvents(EventList *events, DeviceIntPtr pDev, int type, int buttons,
+ int flags, int first_valuator, int num_valuators,
+ int *valuators) {
+ int num_events = 1;
+ CARD32 ms;
+ DeviceEvent *event;
+ RawDeviceEvent *raw;
+ int x = 0, y = 0, /* device coords */
+ cx, cy; /* only screen coordinates */
+ float x_frac = 0.0, y_frac = 0.0, cx_frac, cy_frac;
+ ScreenPtr scr = miPointerGetScreen(pDev);
+
+ /* refuse events from disabled devices */
+ if (!pDev->enabled)
+ return 0;
+
+ ms = GetTimeInMillis(); /* before pointer update to help precision */
+
+ if (!scr || !pDev->valuator || first_valuator < 0 ||
+ ((num_valuators + first_valuator) > pDev->valuator->numAxes) ||
+ (type != MotionNotify && type != ButtonPress && type != ButtonRelease) ||
+ (type != MotionNotify && !pDev->button) ||
+ ((type == ButtonPress || type == ButtonRelease) && !buttons) ||
+ (type == MotionNotify && num_valuators <= 0))
+ return 0;
+
+ events = updateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, &num_events);
+
+ raw = (RawDeviceEvent*)events->event;
+ events++;
+ num_events++;
+
+ init_raw(pDev, raw, ms, type, buttons);
+ set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+ raw->valuators.data_raw);
+
+ if (flags & POINTER_ABSOLUTE)
+ {
+ if (flags & POINTER_SCREEN) /* valuators are in screen coords */
+ {
+
+ if (num_valuators >= 1 && first_valuator == 0)
+ valuators[0] = rescaleValuatorAxis(valuators[0], 0.0, &x_frac, NULL,
+ pDev->valuator->axes + 0,
+ scr->width);
+ if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
+ valuators[1 - first_valuator] = rescaleValuatorAxis(valuators[1 - first_valuator], 0.0, &y_frac, NULL,
+ pDev->valuator->axes + 1,
+ scr->height);
+ }
+
+ moveAbsolute(pDev, &x, &y, first_valuator, num_valuators, valuators);
+ } else {
+ if (flags & POINTER_ACCELERATE) {
+ accelPointer(pDev, first_valuator, num_valuators, valuators, ms);
+ /* The pointer acceleration code modifies the fractional part
+ * in-place, so we need to extract this information first */
+ x_frac = pDev->last.remainder[0];
+ y_frac = pDev->last.remainder[1];
+ }
+ moveRelative(pDev, &x, &y, first_valuator, num_valuators, valuators);
+ }
+
+ set_raw_valuators(raw, first_valuator, num_valuators, valuators,
+ raw->valuators.data);
+
+ positionSprite(pDev, &x, &y, x_frac, y_frac, scr, &cx, &cy, &cx_frac, &cy_frac);
+ updateHistory(pDev, first_valuator, num_valuators, ms);
+
+ /* Update the valuators with the true value sent to the client*/
+ if (num_valuators >= 1 && first_valuator == 0)
+ valuators[0] = x;
+ if (first_valuator <= 1 && num_valuators >= (2 - first_valuator))
+ valuators[1 - first_valuator] = y;
+
+ if (num_valuators)
+ clipValuators(pDev, first_valuator, num_valuators, valuators);
+
+ event = (DeviceEvent*) events->event;
+ init_event(pDev, event, ms);
+
+ if (type == MotionNotify) {
+ event->type = ET_Motion;
+ event->detail.button = 0;
+ }
+ else {
+ if (type == ButtonPress) {
+ event->type = ET_ButtonPress;
+ pDev->button->postdown[buttons >> 3] |= (1 << (buttons & 7));
+ }
+ else if (type == ButtonRelease) {
+ event->type = ET_ButtonRelease;
+ pDev->button->postdown[buttons >> 3] &= ~(1 << (buttons & 7));
+ }
+ event->detail.button = buttons;
+ }
+
+ event->root_x = cx; /* root_x/y always in screen coords */
+ event->root_y = cy;
+ event->root_x_frac = cx_frac;
+ event->root_y_frac = cy_frac;
+
+ set_valuators(pDev, event, first_valuator, num_valuators, valuators);
+
+ return num_events;
+}
+
+
+/**
+ * Post ProximityIn/ProximityOut events, accompanied by valuators.
+ *
+ * events is not NULL-terminated; the return value is the number of events.
+ * The DDX is responsible for allocating the event structure in the first
+ * place via GetMaximumEventsNum(), and for freeing it.
+ */
+int
+GetProximityEvents(EventList *events, DeviceIntPtr pDev, int type,
+ int first_valuator, int num_valuators, int *valuators)
+{
+ int num_events = 1;
+ DeviceEvent *event;
+
+ /* refuse events from disabled devices */
+ if (!pDev->enabled)
+ return 0;
+
+ /* Sanity checks. */
+ if (type != ProximityIn && type != ProximityOut)
+ return 0;
+ if (!pDev->valuator)
+ return 0;
+ /* Do we need to send a DeviceValuator event? */
+ if ((pDev->valuator->mode & 1) == Relative)
+ num_valuators = 0;
+
+ /* You fail. */
+ if (first_valuator < 0 ||
+ (num_valuators + first_valuator) > pDev->valuator->numAxes)
+ return 0;
+
+ events = updateFromMaster(events, pDev, DEVCHANGE_POINTER_EVENT, &num_events);
+
+ event = (DeviceEvent *) events->event;
+ init_event(pDev, event, GetTimeInMillis());
+ event->type = (type == ProximityIn) ? ET_ProximityIn : ET_ProximityOut;
+
+ if (num_valuators)
+ clipValuators(pDev, first_valuator, num_valuators, valuators);
+
+ set_valuators(pDev, event, first_valuator, num_valuators, valuators);
+
+ return num_events;
+}
+
+/**
+ * Synthesize a single motion event for the core pointer.
+ *
+ * Used in cursor functions, e.g. when cursor confinement changes, and we need
+ * to shift the pointer to get it inside the new bounds.
+ */
+void
+PostSyntheticMotion(DeviceIntPtr pDev,
+ int x,
+ int y,
+ int screen,
+ unsigned long time)
+{
+ DeviceEvent ev;
+
+#ifdef PANORAMIX
+ /* Translate back to the sprite screen since processInputProc
+ will translate from sprite screen to screen 0 upon reentry
+ to the DIX layer. */
+ if (!noPanoramiXExtension) {
+ x += panoramiXdataPtr[0].x - panoramiXdataPtr[screen].x;
+ y += panoramiXdataPtr[0].y - panoramiXdataPtr[screen].y;
+ }
+#endif
+
+ memset(&ev, 0, sizeof(DeviceEvent));
+ init_event(pDev, &ev, time);
+ ev.root_x = x;
+ ev.root_y = y;
+ ev.type = ET_Motion;
+ ev.time = time;
+
+ /* FIXME: MD/SD considerations? */
+ (*pDev->public.processInputProc)((InternalEvent*)&ev, pDev);
+}
diff --git a/xorg-server/dix/main.c b/xorg-server/dix/main.c
index f0235364f..54cd8a919 100644
--- a/xorg-server/dix/main.c
+++ b/xorg-server/dix/main.c
@@ -1,348 +1,392 @@
-/***********************************************************
-
-Copyright 1987, 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.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-******************************************************************/
-
-/* The panoramix components contained the following notice */
-/*****************************************************************
-
-Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software.
-
-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
-DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
-BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
-shall not be used in advertising or otherwise to promote the sale, use or other
-dealings in this Software without prior written authorization from Digital
-Equipment Corporation.
-
-******************************************************************/
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#include <version-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xos.h> /* for unistd.h */
-#include <X11/Xproto.h>
-#include <pixman.h>
-#include "scrnintstr.h"
-#include "misc.h"
-#include "os.h"
-#include "windowstr.h"
-#include "resource.h"
-#include "dixstruct.h"
-#include "gcstruct.h"
-#include "extension.h"
-#include "colormap.h"
-#include "colormapst.h"
-#include "cursorstr.h"
-#include "selection.h"
-#include <X11/fonts/font.h>
-#include "opaque.h"
-#include "servermd.h"
-#include "hotplug.h"
-#include "site.h"
-#include "dixfont.h"
-#include "extnsionst.h"
-#include "privates.h"
-#include "registry.h"
-#ifdef PANORAMIX
-#include "panoramiXsrv.h"
-#else
-#include "dixevents.h" /* InitEvents() */
-#include "dispatch.h" /* InitProcVectors() */
-#endif
-
-#ifdef DPMSExtension
-#include <X11/extensions/dpmsconst.h>
-#include "dpmsproc.h"
-#endif
-
-extern void Dispatch(void);
-
-extern void InitProcVectors(void);
-
-#ifdef XQUARTZ
-#include <pthread.h>
-
-BOOL serverInitComplete = FALSE;
-pthread_mutex_t serverInitCompleteMutex = PTHREAD_MUTEX_INITIALIZER;
-pthread_cond_t serverInitCompleteCond = PTHREAD_COND_INITIALIZER;
-
-int dix_main(int argc, char *argv[], char *envp[]);
-
-int dix_main(int argc, char *argv[], char *envp[])
-#else
-int main(int argc, char *argv[], char *envp[])
-#endif
-{
- int i;
- HWEventQueueType alwaysCheckForInput[2];
-
- display = "0";
-
- InitRegions();
-
- pixman_disable_out_of_bounds_workaround();
-
- CheckUserParameters(argc, argv, envp);
-
- CheckUserAuthorization();
-
- InitConnectionLimits();
-
- ProcessCommandLine(argc, argv);
-
- alwaysCheckForInput[0] = 0;
- alwaysCheckForInput[1] = 1;
- while(1)
- {
- serverGeneration++;
- ScreenSaverTime = defaultScreenSaverTime;
- ScreenSaverInterval = defaultScreenSaverInterval;
- ScreenSaverBlanking = defaultScreenSaverBlanking;
- ScreenSaverAllowExposures = defaultScreenSaverAllowExposures;
-#ifdef DPMSExtension
- DPMSStandbyTime = DEFAULT_SCREEN_SAVER_TIME;
- DPMSSuspendTime = DEFAULT_SCREEN_SAVER_TIME;
- DPMSOffTime = DEFAULT_SCREEN_SAVER_TIME;
- DPMSEnabled = TRUE;
- DPMSPowerLevel = 0;
-#endif
- InitBlockAndWakeupHandlers();
- /* Perform any operating system dependent initializations you'd like */
- OsInit();
- if(serverGeneration == 1)
- {
- CreateWellKnownSockets();
- InitProcVectors();
- for (i=1; i<MAXCLIENTS; i++)
- clients[i] = NullClient;
- serverClient = xalloc(sizeof(ClientRec));
- if (!serverClient)
- FatalError("couldn't create server client");
- InitClient(serverClient, 0, (pointer)NULL);
- }
- else
- ResetWellKnownSockets ();
- clients[0] = serverClient;
- currentMaxClients = 1;
-
- if (!InitClientResources(serverClient)) /* for root resources */
- FatalError("couldn't init server resources");
-
- SetInputCheck(&alwaysCheckForInput[0], &alwaysCheckForInput[1]);
- screenInfo.arraySize = MAXSCREENS;
- screenInfo.numScreens = 0;
-
- InitAtoms();
- InitEvents();
- InitSelections();
- InitGlyphCaching();
- if (!dixResetPrivates())
- FatalError("couldn't init private data storage");
- dixResetRegistry();
- ResetFontPrivateIndex();
- InitCallbackManager();
- InitOutput(&screenInfo, argc, argv);
-
- if (screenInfo.numScreens < 1)
- FatalError("no screens found");
- InitExtensions(argc, argv);
- for (i = 0; i < screenInfo.numScreens; i++)
- {
- ScreenPtr pScreen = screenInfo.screens[i];
- if (!CreateScratchPixmapsForScreen(i))
- FatalError("failed to create scratch pixmaps");
- if (pScreen->CreateScreenResources &&
- !(*pScreen->CreateScreenResources)(pScreen))
- FatalError("failed to create screen resources");
- if (!CreateGCperDepth(i))
- FatalError("failed to create scratch GCs");
- if (!CreateDefaultStipple(i))
- FatalError("failed to create default stipple");
- if (!CreateRootWindow(pScreen))
- FatalError("failed to create root window");
- }
-
- InitFonts();
- if (SetDefaultFontPath(defaultFontPath) != Success) {
- ErrorF("[dix] failed to set default font path '%s'", defaultFontPath);
- }
- if (!SetDefaultFont(defaultTextFont)) {
- FatalError("could not open default font '%s'", defaultTextFont);
- }
-
- if (!(rootCursor = CreateRootCursor(NULL, 0))) {
- FatalError("could not open default cursor font '%s'",
- defaultCursorFont);
- }
-
-#ifdef DPMSExtension
- /* check all screens, looking for DPMS Capabilities */
- DPMSCapableFlag = DPMSSupported();
- if (!DPMSCapableFlag)
- DPMSEnabled = FALSE;
-#endif
-
-#ifdef PANORAMIX
- /*
- * Consolidate window and colourmap information for each screen
- */
- if (!noPanoramiXExtension)
- PanoramiXConsolidate();
-#endif
-
- for (i = 0; i < screenInfo.numScreens; i++)
- InitRootWindow(WindowTable[i]);
-
- InitCoreDevices();
- InitInput(argc, argv);
- InitAndStartDevices();
-
- dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
-
-#ifdef PANORAMIX
- if (!noPanoramiXExtension) {
- if (!PanoramiXCreateConnectionBlock()) {
- FatalError("could not create connection block info");
- }
- } else
-#endif
- {
- if (!CreateConnectionBlock()) {
- FatalError("could not create connection block info");
- }
- }
-
-#ifdef XQUARTZ
- /* Let the other threads know the server is done with its init */
- pthread_mutex_lock(&serverInitCompleteMutex);
- serverInitComplete = TRUE;
- pthread_cond_broadcast(&serverInitCompleteCond);
- pthread_mutex_unlock(&serverInitCompleteMutex);
-#endif
-
- NotifyParentProcess();
-
- Dispatch();
-
- UndisplayDevices();
-
- /* Now free up whatever must be freed */
- if (screenIsSaved == SCREEN_SAVER_ON)
- dixSaveScreens(serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
- FreeScreenSaverTimer();
- CloseDownExtensions();
-
-#ifdef PANORAMIX
- {
- Bool remember_it = noPanoramiXExtension;
- noPanoramiXExtension = TRUE;
- FreeAllResources();
- noPanoramiXExtension = remember_it;
- }
-#else
- FreeAllResources();
-#endif
-
- CloseInput();
-
- memset(WindowTable, 0, sizeof(WindowTable));
- CloseDownDevices();
- CloseDownEvents();
-
- for (i = screenInfo.numScreens - 1; i >= 0; i--)
- {
- FreeScratchPixmapsForScreen(i);
- FreeGCperDepth(i);
- FreeDefaultStipple(i);
- (* screenInfo.screens[i]->CloseScreen)(i, screenInfo.screens[i]);
- dixFreePrivates(screenInfo.screens[i]->devPrivates);
- xfree(screenInfo.screens[i]);
- screenInfo.numScreens = i;
- }
- FreeFonts();
-
- FreeAuditTimer();
-
- dixFreePrivates(serverClient->devPrivates);
- serverClient->devPrivates = NULL;
-
- if (dispatchException & DE_TERMINATE)
- {
- CloseWellKnownConnections();
- }
-
- OsCleanup((dispatchException & DE_TERMINATE) != 0);
-
- if (dispatchException & DE_TERMINATE)
- {
- ddxGiveUp();
- break;
- }
-
- xfree(ConnectionInfo);
- ConnectionInfo = NULL;
- }
- return(0);
-}
-
+/***********************************************************
+
+Copyright 1987, 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.
+
+
+Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+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 Digital not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+DIGITAL 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.
+
+******************************************************************/
+
+/* The panoramix components contained the following notice */
+/*****************************************************************
+
+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+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
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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 Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+
+******************************************************************/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#include <version-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/Xos.h> /* for unistd.h */
+#include <X11/Xproto.h>
+#include <pixman.h>
+#include "scrnintstr.h"
+#include "misc.h"
+#include "os.h"
+#include "windowstr.h"
+#include "resource.h"
+#include "dixstruct.h"
+#include "gcstruct.h"
+#include "extension.h"
+#include "colormap.h"
+#include "colormapst.h"
+#include "cursorstr.h"
+#include "selection.h"
+#include <X11/fonts/font.h>
+#include "opaque.h"
+#include "servermd.h"
+#include "hotplug.h"
+#include "site.h"
+#include "dixfont.h"
+#include "extnsionst.h"
+#include "privates.h"
+#include "registry.h"
+#ifdef PANORAMIX
+#include "panoramiXsrv.h"
+#else
+#include "dixevents.h" /* InitEvents() */
+#include "dispatch.h" /* InitProcVectors() */
+#endif
+
+#ifdef DPMSExtension
+#include <X11/extensions/dpmsconst.h>
+#include "dpmsproc.h"
+#endif
+
+#ifdef _DEBUG
+#include <crtdbg.h>
+#endif
+
+extern void Dispatch(void);
+
+extern void InitProcVectors(void);
+
+#ifdef XQUARTZ
+#include <pthread.h>
+
+BOOL serverInitComplete = FALSE;
+pthread_mutex_t serverInitCompleteMutex = PTHREAD_MUTEX_INITIALIZER;
+pthread_cond_t serverInitCompleteCond = PTHREAD_COND_INITIALIZER;
+
+int dix_main(int argc, char *argv[], char *envp[]);
+
+int dix_main(int argc, char *argv[], char *envp[])
+#else
+int main(int argc, char *argv[], char *envp[])
+#endif
+{
+ int i;
+ HWEventQueueType alwaysCheckForInput[2];
+ #ifdef _DEBUG
+ //int TmpFlag=_CrtSetDbgFlag( _CRTDBG_REPORT_FLAG);
+
+ //TmpFlag|=_CRTDBG_ALLOC_MEM_DF;
+ //TmpFlag|=_CRTDBG_DELAY_FREE_MEM_DF;
+ //TmpFlag|=_CRTDBG_CHECK_ALWAYS_DF;
+ //TmpFlag|=_CRTDBG_CHECK_CRT_DF;
+ //TmpFlag|=_CRTDBG_LEAK_CHECK_DF;
+
+ //_CrtSetDbgFlag(TmpFlag);
+ #endif
+
+ ptw32_processInitialize();
+ display = "0";
+
+ #ifdef WIN32
+
+ if (InitWSA()<0)
+ {
+ printf("Error initialising WSA\n");
+ return -1;
+ }
+ /* In Win32 we have different threads call Xlib functions (depending
+ on the commandline options given).
+ XInitThreads has to be called before
+ any xlib function is called (aoccording to the man page) */
+ XInitThreads();
+ /* change the current directory to the directory where the vcxsrv.exe executable is installed.
+ This is needed because the font directories are relative to the current directory.
+ */
+ {
+ char ModuleFilename[MAX_PATH];
+ char *pSlash;
+ GetModuleFileName(NULL,ModuleFilename,sizeof(ModuleFilename));
+ pSlash=strrchr(ModuleFilename,'\\');
+ if (pSlash)
+ {
+ *pSlash='\0';
+ chdir(ModuleFilename);
+ }
+ }
+ #endif
+
+ InitRegions();
+
+ pixman_disable_out_of_bounds_workaround();
+
+ CheckUserParameters(argc, argv, envp);
+
+ CheckUserAuthorization();
+
+ InitConnectionLimits();
+
+ ProcessCommandLine(argc, argv);
+
+ alwaysCheckForInput[0] = 0;
+ alwaysCheckForInput[1] = 1;
+ while(1)
+ {
+ serverGeneration++;
+ ScreenSaverTime = defaultScreenSaverTime;
+ ScreenSaverInterval = defaultScreenSaverInterval;
+ ScreenSaverBlanking = defaultScreenSaverBlanking;
+ ScreenSaverAllowExposures = defaultScreenSaverAllowExposures;
+#ifdef DPMSExtension
+ DPMSStandbyTime = DEFAULT_SCREEN_SAVER_TIME;
+ DPMSSuspendTime = DEFAULT_SCREEN_SAVER_TIME;
+ DPMSOffTime = DEFAULT_SCREEN_SAVER_TIME;
+ DPMSEnabled = TRUE;
+ DPMSPowerLevel = 0;
+#endif
+ InitBlockAndWakeupHandlers();
+ /* Perform any operating system dependent initializations you'd like */
+ OsInit();
+ if(serverGeneration == 1)
+ {
+ CreateWellKnownSockets();
+ InitProcVectors();
+ for (i=1; i<MAXCLIENTS; i++)
+ clients[i] = NullClient;
+ serverClient = xalloc(sizeof(ClientRec));
+ if (!serverClient)
+ FatalError("couldn't create server client");
+ InitClient(serverClient, 0, (pointer)NULL);
+ }
+ else
+ ResetWellKnownSockets ();
+ clients[0] = serverClient;
+ currentMaxClients = 1;
+
+ if (!InitClientResources(serverClient)) /* for root resources */
+ FatalError("couldn't init server resources");
+
+ SetInputCheck(&alwaysCheckForInput[0], &alwaysCheckForInput[1]);
+ screenInfo.arraySize = MAXSCREENS;
+ screenInfo.numScreens = 0;
+
+ InitAtoms();
+ InitEvents();
+ InitSelections();
+ InitGlyphCaching();
+ if (!dixResetPrivates())
+ FatalError("couldn't init private data storage");
+ dixResetRegistry();
+ ResetFontPrivateIndex();
+ InitCallbackManager();
+ InitOutput(&screenInfo, argc, argv);
+
+ if (screenInfo.numScreens < 1)
+ FatalError("no screens found");
+ InitExtensions(argc, argv);
+ for (i = 0; i < screenInfo.numScreens; i++)
+ {
+ ScreenPtr pScreen = screenInfo.screens[i];
+ if (!CreateScratchPixmapsForScreen(i))
+ FatalError("failed to create scratch pixmaps");
+ if (pScreen->CreateScreenResources &&
+ !(*pScreen->CreateScreenResources)(pScreen))
+ FatalError("failed to create screen resources");
+ if (!CreateGCperDepth(i))
+ FatalError("failed to create scratch GCs");
+ if (!CreateDefaultStipple(i))
+ FatalError("failed to create default stipple");
+ if (!CreateRootWindow(pScreen))
+ FatalError("failed to create root window");
+ }
+
+ InitFonts();
+ if (SetDefaultFontPath(defaultFontPath) != Success) {
+ ErrorF("[dix] failed to set default font path '%s'", defaultFontPath);
+ }
+ if (!SetDefaultFont(defaultTextFont)) {
+ FatalError("could not open default font '%s'", defaultTextFont);
+ }
+
+ if (!(rootCursor = CreateRootCursor(NULL, 0))) {
+ FatalError("could not open default cursor font '%s'",
+ defaultCursorFont);
+ }
+
+#ifdef DPMSExtension
+ /* check all screens, looking for DPMS Capabilities */
+ DPMSCapableFlag = DPMSSupported();
+ if (!DPMSCapableFlag)
+ DPMSEnabled = FALSE;
+#endif
+
+#ifdef PANORAMIX
+ /*
+ * Consolidate window and colourmap information for each screen
+ */
+ if (!noPanoramiXExtension)
+ PanoramiXConsolidate();
+#endif
+
+ for (i = 0; i < screenInfo.numScreens; i++)
+ InitRootWindow(WindowTable[i]);
+
+ InitCoreDevices();
+ InitInput(argc, argv);
+ InitAndStartDevices();
+
+ dixSaveScreens(serverClient, SCREEN_SAVER_FORCER, ScreenSaverReset);
+
+#ifdef PANORAMIX
+ if (!noPanoramiXExtension) {
+ if (!PanoramiXCreateConnectionBlock()) {
+ FatalError("could not create connection block info");
+ }
+ } else
+#endif
+ {
+ if (!CreateConnectionBlock()) {
+ FatalError("could not create connection block info");
+ }
+ }
+
+#ifdef XQUARTZ
+ /* Let the other threads know the server is done with its init */
+ pthread_mutex_lock(&serverInitCompleteMutex);
+ serverInitComplete = TRUE;
+ pthread_cond_broadcast(&serverInitCompleteCond);
+ pthread_mutex_unlock(&serverInitCompleteMutex);
+#endif
+
+ NotifyParentProcess();
+
+ Dispatch();
+
+ UndisplayDevices();
+
+ /* Now free up whatever must be freed */
+ if (screenIsSaved == SCREEN_SAVER_ON)
+ dixSaveScreens(serverClient, SCREEN_SAVER_OFF, ScreenSaverReset);
+ FreeScreenSaverTimer();
+ CloseDownExtensions();
+
+#ifdef PANORAMIX
+ {
+ Bool remember_it = noPanoramiXExtension;
+ noPanoramiXExtension = TRUE;
+ FreeAllResources();
+ noPanoramiXExtension = remember_it;
+ }
+#else
+ FreeAllResources();
+#endif
+
+ CloseInput();
+
+ memset(WindowTable, 0, sizeof(WindowTable));
+ CloseDownDevices();
+ CloseDownEvents();
+
+ for (i = screenInfo.numScreens - 1; i >= 0; i--)
+ {
+ FreeScratchPixmapsForScreen(i);
+ FreeGCperDepth(i);
+ FreeDefaultStipple(i);
+ (* screenInfo.screens[i]->CloseScreen)(i, screenInfo.screens[i]);
+ dixFreePrivates(screenInfo.screens[i]->devPrivates);
+ xfree(screenInfo.screens[i]);
+ screenInfo.numScreens = i;
+ }
+ FreeFonts();
+
+ FreeAuditTimer();
+
+ dixFreePrivates(serverClient->devPrivates);
+ serverClient->devPrivates = NULL;
+
+ if (dispatchException & DE_TERMINATE)
+ {
+ CloseWellKnownConnections();
+ }
+
+ OsCleanup((dispatchException & DE_TERMINATE) != 0);
+
+ if (dispatchException & DE_TERMINATE)
+ {
+ ddxGiveUp();
+ break;
+ }
+
+ xfree(ConnectionInfo);
+ ConnectionInfo = NULL;
+ }
+ return(0);
+}
+
diff --git a/xorg-server/dix/makefile b/xorg-server/dix/makefile
new file mode 100644
index 000000000..01e98d638
--- /dev/null
+++ b/xorg-server/dix/makefile
@@ -0,0 +1,40 @@
+ifeq ($(DEBUG),1)
+DEFINES += FONTDEBUG XSERVER_DTRACE
+endif
+
+LIBRARY=libdix
+
+CSRCS=\
+ atom.c \
+ colormap.c \
+ cursor.c \
+ deprecated.c \
+ devices.c \
+ dispatch.c \
+ dixfonts.c \
+ dixutils.c \
+ enterleave.c \
+ events.c \
+ eventconvert.c \
+ extension.c \
+ ffs.c \
+ gc.c \
+ getevents.c \
+ globals.c \
+ glyphcurs.c \
+ grabs.c \
+ initatoms.c \
+ inpututils.c \
+ main.c \
+ pixmap.c \
+ privates.c \
+ property.c \
+ ptrveloc.c \
+ registry.c \
+ resource.c \
+ selection.c \
+ swaprep.c \
+ swapreq.c \
+ tables.c \
+ window.c
+
diff --git a/xorg-server/dix/ptrveloc.c b/xorg-server/dix/ptrveloc.c
index c2f43784c..b9ece2159 100644
--- a/xorg-server/dix/ptrveloc.c
+++ b/xorg-server/dix/ptrveloc.c
@@ -1,1190 +1,1199 @@
-/*
- *
- * Copyright © 2006-2009 Simon Thum simon dot thum at gmx dot de
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- */
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <math.h>
-#include <ptrveloc.h>
-#include <exevents.h>
-#include <X11/Xatom.h>
-
-#include <xserver-properties.h>
-
-/*****************************************************************************
- * Predictable pointer acceleration
- *
- * 2006-2009 by Simon Thum (simon [dot] thum [at] gmx de)
- *
- * Serves 3 complementary functions:
- * 1) provide a sophisticated ballistic velocity estimate to improve
- * the relation between velocity (of the device) and acceleration
- * 2) make arbitrary acceleration profiles possible
- * 3) decelerate by two means (constant and adaptive) if enabled
- *
- * Important concepts are the
- *
- * - Scheme
- * which selects the basic algorithm
- * (see devices.c/InitPointerAccelerationScheme)
- * - Profile
- * which returns an acceleration
- * for a given velocity
- *
- * The profile can be selected by the user at runtime.
- * The classic profile is intended to cleanly perform old-style
- * function selection (threshold =/!= 0)
- *
- ****************************************************************************/
-
-/* fwds */
-int
-SetAccelerationProfile(DeviceVelocityPtr vel, int profile_num);
-static float
-SimpleSmoothProfile(DeviceIntPtr dev, DeviceVelocityPtr vel, float velocity,
- float threshold, float acc);
-static PointerAccelerationProfileFunc
-GetAccelerationProfile(DeviceVelocityPtr vel, int profile_num);
-
-/*#define PTRACCEL_DEBUGGING*/
-
-#ifdef PTRACCEL_DEBUGGING
-#define DebugAccelF ErrorF
-#else
-#define DebugAccelF(...) /* */
-#endif
-
-/********************************
- * Init/Uninit
- *******************************/
-
-/* some int which is not a profile number */
-#define PROFILE_UNINITIALIZE (-100)
-
-/* number of properties for predictable acceleration */
-#define NPROPS_PREDICTABLE_ACCEL 4
-
-/**
- * Init struct so it should match the average case
- */
-void
-InitVelocityData(DeviceVelocityPtr vel)
-{
- memset(vel, 0, sizeof(DeviceVelocityRec));
-
- vel->corr_mul = 10.0; /* dots per 10 milisecond should be usable */
- vel->const_acceleration = 1.0; /* no acceleration/deceleration */
- vel->reset_time = 300;
- vel->use_softening = 1;
- vel->min_acceleration = 1.0; /* don't decelerate */
- vel->max_rel_diff = 0.2;
- vel->max_diff = 1.0;
- vel->initial_range = 2;
- vel->average_accel = TRUE;
- SetAccelerationProfile(vel, AccelProfileClassic);
- InitTrackers(vel, 16);
-}
-
-
-/**
- * Clean up
- */
-void
-FreeVelocityData(DeviceVelocityPtr vel){
- xfree(vel->tracker);
- SetAccelerationProfile(vel, PROFILE_UNINITIALIZE);
-}
-
-
-/*
- * dix uninit helper, called through scheme
- */
-void
-AccelerationDefaultCleanup(DeviceIntPtr dev)
-{
- /*sanity check*/
- if( dev->valuator->accelScheme.AccelSchemeProc == acceleratePointerPredictable
- && dev->valuator->accelScheme.accelData != NULL){
- dev->valuator->accelScheme.AccelSchemeProc = NULL;
- FreeVelocityData(dev->valuator->accelScheme.accelData);
- xfree(dev->valuator->accelScheme.accelData);
- dev->valuator->accelScheme.accelData = NULL;
- DeletePredictableAccelerationProperties(dev);
- }
-}
-
-
-/*************************
- * Input property support
- ************************/
-
-/**
- * choose profile
- */
-static int
-AccelSetProfileProperty(DeviceIntPtr dev, Atom atom,
- XIPropertyValuePtr val, BOOL checkOnly)
-{
- DeviceVelocityPtr vel;
- int profile, *ptr = &profile;
- int rc;
- int nelem = 1;
-
- if (atom != XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER))
- return Success;
-
- vel = GetDevicePredictableAccelData(dev);
- if (!vel)
- return BadValue;
- rc = XIPropToInt(val, &nelem, &ptr);
-
- if(checkOnly)
- {
- if (rc)
- return rc;
-
- if (GetAccelerationProfile(vel, profile) == NULL)
- return BadValue;
- } else
- SetAccelerationProfile(vel, profile);
-
- return Success;
-}
-
-static long
-AccelInitProfileProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
-{
- int profile = vel->statistics.profile_number;
- Atom prop_profile_number = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
-
- XIChangeDeviceProperty(dev, prop_profile_number, XA_INTEGER, 32,
- PropModeReplace, 1, &profile, FALSE);
- XISetDevicePropertyDeletable(dev, prop_profile_number, FALSE);
- return XIRegisterPropertyHandler(dev, AccelSetProfileProperty, NULL, NULL);
-}
-
-/**
- * constant deceleration
- */
-static int
-AccelSetDecelProperty(DeviceIntPtr dev, Atom atom,
- XIPropertyValuePtr val, BOOL checkOnly)
-{
- DeviceVelocityPtr vel;
- float v, *ptr = &v;
- int rc;
- int nelem = 1;
-
- if (atom != XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION))
- return Success;
-
- vel = GetDevicePredictableAccelData(dev);
- if (!vel)
- return BadValue;
- rc = XIPropToFloat(val, &nelem, &ptr);
-
- if(checkOnly)
- {
- if (rc)
- return rc;
- return (v >= 1.0f) ? Success : BadValue;
- }
-
- if(v >= 1.0f)
- vel->const_acceleration = 1/v;
-
- return Success;
-}
-
-static long
-AccelInitDecelProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
-{
- float fval = 1.0/vel->const_acceleration;
- Atom prop_const_decel = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
- XIChangeDeviceProperty(dev, prop_const_decel,
- XIGetKnownProperty(XATOM_FLOAT), 32,
- PropModeReplace, 1, &fval, FALSE);
- XISetDevicePropertyDeletable(dev, prop_const_decel, FALSE);
- return XIRegisterPropertyHandler(dev, AccelSetDecelProperty, NULL, NULL);
-}
-
-
-/**
- * adaptive deceleration
- */
-static int
-AccelSetAdaptDecelProperty(DeviceIntPtr dev, Atom atom,
- XIPropertyValuePtr val, BOOL checkOnly)
-{
- DeviceVelocityPtr veloc;
- float v, *ptr = &v;
- int rc;
- int nelem = 1;
-
- if (atom != XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION))
- return Success;
-
- veloc = GetDevicePredictableAccelData(dev);
- if (!veloc)
- return BadValue;
- rc = XIPropToFloat(val, &nelem, &ptr);
-
- if(checkOnly)
- {
- if (rc)
- return rc;
- return (v >= 1.0f) ? Success : BadValue;
- }
-
- if(v >= 1.0f)
- veloc->min_acceleration = 1/v;
-
- return Success;
-}
-
-static long
-AccelInitAdaptDecelProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
-{
- float fval = 1.0/vel->min_acceleration;
- Atom prop_adapt_decel = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
-
- XIChangeDeviceProperty(dev, prop_adapt_decel, XIGetKnownProperty(XATOM_FLOAT), 32,
- PropModeReplace, 1, &fval, FALSE);
- XISetDevicePropertyDeletable(dev, prop_adapt_decel, FALSE);
- return XIRegisterPropertyHandler(dev, AccelSetAdaptDecelProperty, NULL, NULL);
-}
-
-
-/**
- * velocity scaling
- */
-static int
-AccelSetScaleProperty(DeviceIntPtr dev, Atom atom,
- XIPropertyValuePtr val, BOOL checkOnly)
-{
- DeviceVelocityPtr vel;
- float v, *ptr = &v;
- int rc;
- int nelem = 1;
-
- if (atom != XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING))
- return Success;
-
- vel = GetDevicePredictableAccelData(dev);
- if (!vel)
- return BadValue;
- rc = XIPropToFloat(val, &nelem, &ptr);
-
- if (checkOnly)
- {
- if (rc)
- return rc;
-
- return (v > 0) ? Success : BadValue;
- }
-
- if(v > 0)
- vel->corr_mul = v;
-
- return Success;
-}
-
-static long
-AccelInitScaleProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
-{
- float fval = vel->corr_mul;
- Atom prop_velo_scale = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
-
- XIChangeDeviceProperty(dev, prop_velo_scale, XIGetKnownProperty(XATOM_FLOAT), 32,
- PropModeReplace, 1, &fval, FALSE);
- XISetDevicePropertyDeletable(dev, prop_velo_scale, FALSE);
- return XIRegisterPropertyHandler(dev, AccelSetScaleProperty, NULL, NULL);
-}
-
-static int AccelPropHandlerPrivateKeyIndex;
-DevPrivateKey AccelPropHandlerPrivateKey = &AccelPropHandlerPrivateKeyIndex;
-
-BOOL
-InitializePredictableAccelerationProperties(DeviceIntPtr dev)
-{
- DeviceVelocityPtr vel = GetDevicePredictableAccelData(dev);
- long *prop_handlers;
-
- if(!vel)
- return FALSE;
- prop_handlers = xalloc(NPROPS_PREDICTABLE_ACCEL * sizeof(long));
-
- prop_handlers[0] = AccelInitProfileProperty(dev, vel);
- prop_handlers[1] = AccelInitDecelProperty(dev, vel);
- prop_handlers[2] = AccelInitAdaptDecelProperty(dev, vel);
- prop_handlers[3] = AccelInitScaleProperty(dev, vel);
-
- dixSetPrivate(&dev->devPrivates, AccelPropHandlerPrivateKey,
- prop_handlers);
-
- return TRUE;
-}
-
-BOOL
-DeletePredictableAccelerationProperties(DeviceIntPtr dev)
-{
- Atom prop;
- long *prop_handlers;
- int i;
-
- prop = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
- XIDeleteDeviceProperty(dev, prop, FALSE);
- prop = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
- XIDeleteDeviceProperty(dev, prop, FALSE);
- prop = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
- XIDeleteDeviceProperty(dev, prop, FALSE);
- prop = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
- XIDeleteDeviceProperty(dev, prop, FALSE);
-
- prop_handlers = dixLookupPrivate(&dev->devPrivates,
- AccelPropHandlerPrivateKey);
- dixSetPrivate(&dev->devPrivates, AccelPropHandlerPrivateKey, NULL);
-
- for (i = 0; prop_handlers && i < NPROPS_PREDICTABLE_ACCEL; i++)
- XIUnregisterPropertyHandler(dev, prop_handlers[i]);
- xfree(prop_handlers);
-
- return TRUE;
-}
-
-/*********************
- * Tracking logic
- ********************/
-
-void
-InitTrackers(DeviceVelocityPtr vel, int ntracker)
-{
- if(ntracker < 1){
- ErrorF("(dix ptracc) invalid number of trackers\n");
- return;
- }
- xfree(vel->tracker);
- vel->tracker = (MotionTrackerPtr)xalloc(ntracker * sizeof(MotionTracker));
- memset(vel->tracker, 0, ntracker * sizeof(MotionTracker));
- vel->num_tracker = ntracker;
-}
-
-/**
- * return a bit field of possible directions.
- * 0 = N, 2 = E, 4 = S, 6 = W, in-between is as you guess.
- * There's no reason against widening to more precise directions (<45 degrees),
- * should it not perform well. All this is needed for is sort out non-linear
- * motion, so precision isn't paramount. However, one should not flag direction
- * too narrow, since it would then cut the linear segment to zero size way too
- * often.
- */
-static int
-DoGetDirection(int dx, int dy){
- float r;
- int i1, i2;
- /* on insignificant mickeys, flag 135 degrees */
- if(abs(dx) < 2 && abs(dy < 2)){
- /* first check diagonal cases */
- if(dx > 0 && dy > 0)
- return 4+8+16;
- if(dx > 0 && dy < 0)
- return 1+2+4;
- if(dx < 0 && dy < 0)
- return 1+128+64;
- if(dx < 0 && dy > 0)
- return 16+32+64;
- /* check axis-aligned directions */
- if(dx > 0)
- return 2+4+8; /*E*/
- if(dx < 0)
- return 128+64+32; /*W*/
- if(dy > 0)
- return 32+16+8; /*S*/
- if(dy < 0)
- return 128+1+2; /*N*/
- return 255; /* shouldn't happen */
- }
- /* else, compute angle and set appropriate flags */
-#ifdef _ISOC99_SOURCE
- r = atan2f(dy, dx);
-#else
- r = atan2(dy, dx);
-#endif
- /* find direction. We avoid r to become negative,
- * since C has no well-defined modulo for such cases. */
- r = (r+(M_PI*2.5))/(M_PI/4);
- /* this intends to flag 2 directions (90 degrees),
- * except on very well-aligned mickeys. */
- i1 = (int)(r+0.1) % 8;
- i2 = (int)(r+0.9) % 8;
- if(i1 < 0 || i1 > 7 || i2 < 0 || i2 > 7)
- return 255; /* shouldn't happen */
- return 1 << i1 | 1 << i2;
-}
-
-#define DIRECTION_CACHE_RANGE 5
-#define DIRECTION_CACHE_SIZE (DIRECTION_CACHE_RANGE*2+1)
-
-/* cache DoGetDirection(). */
-static int
-GetDirection(int dx, int dy){
- static int cache[DIRECTION_CACHE_SIZE][DIRECTION_CACHE_SIZE];
- int i;
- if (abs(dx) <= DIRECTION_CACHE_RANGE &&
- abs(dy) <= DIRECTION_CACHE_RANGE) {
- /* cacheable */
- i = cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy];
- if(i != 0){
- return i;
- }else{
- i = DoGetDirection(dx, dy);
- cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy] = i;
- return i;
- }
- }else{
- /* non-cacheable */
- return DoGetDirection(dx, dy);
- }
-}
-
-#undef DIRECTION_CACHE_RANGE
-#undef DIRECTION_CACHE_SIZE
-
-
-/* convert offset (age) to array index */
-#define TRACKER_INDEX(s, d) (((s)->num_tracker + (s)->cur_tracker - (d)) % (s)->num_tracker)
-
-static inline void
-FeedTrackers(DeviceVelocityPtr vel, int dx, int dy, int cur_t)
-{
- int n;
- for(n = 0; n < vel->num_tracker; n++){
- vel->tracker[n].dx += dx;
- vel->tracker[n].dy += dy;
- }
- n = (vel->cur_tracker + 1) % vel->num_tracker;
- vel->tracker[n].dx = 0;
- vel->tracker[n].dy = 0;
- vel->tracker[n].time = cur_t;
- vel->tracker[n].dir = GetDirection(dx, dy);
- DebugAccelF("(dix prtacc) motion [dx: %i dy: %i dir:%i diff: %i]\n",
- dx, dy, vel->tracker[n].dir,
- cur_t - vel->tracker[vel->cur_tracker].time);
- vel->cur_tracker = n;
-}
-
-/**
- * calc velocity for given tracker, with
- * velocity scaling.
- * This assumes linear motion.
- */
-static float
-CalcTracker(DeviceVelocityPtr vel, int offset, int cur_t){
- int index = TRACKER_INDEX(vel, offset);
- float dist = sqrt( vel->tracker[index].dx * vel->tracker[index].dx
- + vel->tracker[index].dy * vel->tracker[index].dy);
- int dtime = cur_t - vel->tracker[index].time;
- if(dtime > 0)
- return (dist / dtime);
- else
- return 0;/* synonymous for NaN, since we're not C99 */
-}
-
-/* find the most plausible velocity. That is, the most distant
- * (in time) tracker which isn't too old, beyond a linear partition,
- * or simply too much off initial velocity.
- *
- * May return 0.
- */
-static float
-QueryTrackers(DeviceVelocityPtr vel, int cur_t){
- int n, offset, dir = 255, i = -1, age_ms;
- /* initial velocity: a low-offset, valid velocity */
- float iveloc = 0, res = 0, tmp, vdiff;
- float vfac = vel->corr_mul * vel->const_acceleration; /* premultiply */
- /* loop from current to older data */
- for(offset = 1; offset < vel->num_tracker; offset++){
- n = TRACKER_INDEX(vel, offset);
-
- age_ms = cur_t - vel->tracker[n].time;
-
- /* bail out if data is too old and protect from overrun */
- if (age_ms >= vel->reset_time || age_ms < 0) {
- DebugAccelF("(dix prtacc) query: tracker too old\n");
- break;
- }
-
- /*
- * this heuristic avoids using the linear-motion velocity formula
- * in CalcTracker() on motion that isn't exactly linear. So to get
- * even more precision we could subdivide as a final step, so possible
- * non-linearities are accounted for.
- */
- dir &= vel->tracker[n].dir;
- if(dir == 0){
- DebugAccelF("(dix prtacc) query: no longer linear\n");
- /* instead of breaking it we might also inspect the partition after,
- * but actual improvement with this is probably rare. */
- break;
- }
-
- tmp = CalcTracker(vel, offset, cur_t) * vfac;
-
- if ((iveloc == 0 || offset <= vel->initial_range) && tmp != 0) {
- /* set initial velocity and result */
- res = iveloc = tmp;
- i = offset;
- } else if (iveloc != 0 && tmp != 0) {
- vdiff = fabs(iveloc - tmp);
- if (vdiff <= vel->max_diff ||
- vdiff/(iveloc + tmp) < vel->max_rel_diff) {
- /* we're in range with the initial velocity,
- * so this result is likely better
- * (it contains more information). */
- res = tmp;
- i = offset;
- }else{
- /* we're not in range, quit - it won't get better. */
- DebugAccelF("(dix prtacc) query: tracker too different:"
- " old %2.2f initial %2.2f diff: %2.2f\n",
- tmp, iveloc, vdiff);
- break;
- }
- }
- }
- if(offset == vel->num_tracker){
- DebugAccelF("(dix prtacc) query: last tracker in effect\n");
- i = vel->num_tracker-1;
- }
- if(i>=0){
- n = TRACKER_INDEX(vel, i);
- DebugAccelF("(dix prtacc) result: offset %i [dx: %i dy: %i diff: %i]\n",
- i,
- vel->tracker[n].dx,
- vel->tracker[n].dy,
- cur_t - vel->tracker[n].time);
- }
- return res;
-}
-
-#undef TRACKER_INDEX
-
-/**
- * Perform velocity approximation based on 2D 'mickeys' (mouse motion delta).
- * return true if non-visible state reset is suggested
- */
-short
-ProcessVelocityData2D(
- DeviceVelocityPtr vel,
- int dx,
- int dy,
- int time)
-{
- float velocity;
-
- vel->last_velocity = vel->velocity;
-
- FeedTrackers(vel, dx, dy, time);
-
- velocity = QueryTrackers(vel, time);
-
- vel->velocity = velocity;
- return velocity == 0;
-}
-
-/**
- * this flattens significant ( > 1) mickeys a little bit for more steady
- * constant-velocity response
- */
-static inline float
-ApplySimpleSoftening(int od, int d)
-{
- float res = d;
- if (d <= 1 && d >= -1)
- return res;
- if (d > od)
- res -= 0.5;
- else if (d < od)
- res += 0.5;
- return res;
-}
-
-
-static void
-ApplySofteningAndConstantDeceleration(
- DeviceVelocityPtr vel,
- int dx,
- int dy,
- float* fdx,
- float* fdy,
- short do_soften)
-{
- if (do_soften && vel->use_softening) {
- *fdx = ApplySimpleSoftening(vel->last_dx, dx);
- *fdy = ApplySimpleSoftening(vel->last_dy, dy);
- } else {
- *fdx = dx;
- *fdy = dy;
- }
-
- *fdx *= vel->const_acceleration;
- *fdy *= vel->const_acceleration;
-}
-
-/*
- * compute the acceleration for given velocity and enforce min_acceleartion
- */
-float
-BasicComputeAcceleration(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc){
-
- float result;
- result = vel->Profile(dev, vel, velocity, threshold, acc);
-
- /* enforce min_acceleration */
- if (result < vel->min_acceleration)
- result = vel->min_acceleration;
- return result;
-}
-
-/**
- * Compute acceleration. Takes into account averaging, nv-reset, etc.
- */
-static float
-ComputeAcceleration(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float threshold,
- float acc){
- float res;
-
- if(vel->velocity <= 0){
- DebugAccelF("(dix ptracc) profile skipped\n");
- /*
- * If we have no idea about device velocity, don't pretend it.
- */
- return 1;
- }
-
- if(vel->average_accel && vel->velocity != vel->last_velocity){
- /* use simpson's rule to average acceleration between
- * current and previous velocity.
- * Though being the more natural choice, it causes a minor delay
- * in comparison, so it can be disabled. */
- res = BasicComputeAcceleration(
- dev, vel, vel->velocity, threshold, acc);
- res += BasicComputeAcceleration(
- dev, vel, vel->last_velocity, threshold, acc);
- res += 4.0f * BasicComputeAcceleration(dev, vel,
- (vel->last_velocity + vel->velocity) / 2,
- threshold, acc);
- res /= 6.0f;
- DebugAccelF("(dix ptracc) profile average [%.2f ... %.2f] is %.3f\n",
- vel->velocity, vel->last_velocity, res);
- return res;
- }else{
- res = BasicComputeAcceleration(dev, vel,
- vel->velocity, threshold, acc);
- DebugAccelF("(dix ptracc) profile sample [%.2f] is %.3f\n",
- vel->velocity, res);
- return res;
- }
-}
-
-
-/*****************************************
- * Acceleration functions and profiles
- ****************************************/
-
-/**
- * Polynomial function similar previous one, but with f(1) = 1
- */
-static float
-PolynomialAccelerationProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float ignored,
- float acc)
-{
- return pow(velocity, (acc - 1.0) * 0.5);
-}
-
-
-/**
- * returns acceleration for velocity.
- * This profile selects the two functions like the old scheme did
- */
-static float
-ClassicProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- if (threshold > 0) {
- return SimpleSmoothProfile (dev,
- vel,
- velocity,
- threshold,
- acc);
- } else {
- return PolynomialAccelerationProfile (dev,
- vel,
- velocity,
- 0,
- acc);
- }
-}
-
-
-/**
- * Power profile
- * This has a completely smooth transition curve, i.e. no jumps in the
- * derivatives.
- *
- * This has the expense of overall response dependency on min-acceleration.
- * In effect, min_acceleration mimics const_acceleration in this profile.
- */
-static float
-PowerProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- float vel_dist;
-
- acc = (acc-1.0) * 0.1f + 1.0; /* without this, acc of 2 is unuseable */
-
- if (velocity <= threshold)
- return vel->min_acceleration;
- vel_dist = velocity - threshold;
- return (pow(acc, vel_dist)) * vel->min_acceleration;
-}
-
-
-/**
- * just a smooth function in [0..1] -> [0..1]
- * - point symmetry at 0.5
- * - f'(0) = f'(1) = 0
- * - starts faster than a sinoid
- * - smoothness C1 (Cinf if you dare to ignore endpoints)
- */
-static inline float
-CalcPenumbralGradient(float x){
- x *= 2.0f;
- x -= 1.0f;
- return 0.5f + (x * sqrt(1.0f - x*x) + asin(x))/M_PI;
-}
-
-
-/**
- * acceleration function similar to classic accelerated/unaccelerated,
- * but with smooth transition in between (and towards zero for adaptive dec.).
- */
-static float
-SimpleSmoothProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- if(velocity < 1.0f)
- return CalcPenumbralGradient(0.5 + velocity*0.5) * 2.0f - 1.0f;
- if(threshold < 1.0f)
- threshold = 1.0f;
- if (velocity <= threshold)
- return 1;
- velocity /= threshold;
- if (velocity >= acc)
- return acc;
- else
- return 1.0f + (CalcPenumbralGradient(velocity/acc) * (acc - 1.0f));
-}
-
-
-/**
- * This profile uses the first half of the penumbral gradient as a start
- * and then scales linearly.
- */
-static float
-SmoothLinearProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- float res, nv;
-
- if(acc > 1.0f)
- acc -= 1.0f; /*this is so acc = 1 is no acceleration */
- else
- return 1.0f;
-
- nv = (velocity - threshold) * acc * 0.5f;
-
- if(nv < 0){
- res = 0;
- }else if(nv < 2){
- res = CalcPenumbralGradient(nv*0.25f)*2.0f;
- }else{
- nv -= 2.0f;
- res = nv * 2.0f / M_PI /* steepness of gradient at 0.5 */
- + 1.0f; /* gradient crosses 2|1 */
- }
- res += vel->min_acceleration;
- return res;
-}
-
-
-/**
- * From 0 to threshold, the response graduates smoothly from min_accel to
- * acceleration. Beyond threshold it is exactly the specified acceleration.
- */
-static float
-SmoothLimitedProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- float res;
-
- if(velocity >= threshold || threshold == 0.0f)
- return acc;
-
- velocity /= threshold; /* should be [0..1[ now */
-
- res = CalcPenumbralGradient(velocity) * (acc - vel->min_acceleration);
-
- return vel->min_acceleration + res;
-}
-
-
-static float
-LinearProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- return acc * velocity;
-}
-
-static float
-NoProfile(
- DeviceIntPtr dev,
- DeviceVelocityPtr vel,
- float velocity,
- float threshold,
- float acc)
-{
- return 1.0f;
-}
-
-static PointerAccelerationProfileFunc
-GetAccelerationProfile(
- DeviceVelocityPtr vel,
- int profile_num)
-{
- switch(profile_num){
- case AccelProfileClassic:
- return ClassicProfile;
- case AccelProfileDeviceSpecific:
- return vel->deviceSpecificProfile;
- case AccelProfilePolynomial:
- return PolynomialAccelerationProfile;
- case AccelProfileSmoothLinear:
- return SmoothLinearProfile;
- case AccelProfileSimple:
- return SimpleSmoothProfile;
- case AccelProfilePower:
- return PowerProfile;
- case AccelProfileLinear:
- return LinearProfile;
- case AccelProfileSmoothLimited:
- return SmoothLimitedProfile;
- case AccelProfileNone:
- return NoProfile;
- default:
- return NULL;
- }
-}
-
-/**
- * Set the profile by number.
- * Intended to make profiles exchangeable at runtime.
- * If you created a profile, give it a number here and in the header to
- * make it selectable. In case some profile-specific init is needed, here
- * would be a good place, since FreeVelocityData() also calls this with
- * PROFILE_UNINITIALIZE.
- *
- * returns FALSE if profile number is unavailable, TRUE otherwise.
- */
-int
-SetAccelerationProfile(
- DeviceVelocityPtr vel,
- int profile_num)
-{
- PointerAccelerationProfileFunc profile;
- profile = GetAccelerationProfile(vel, profile_num);
-
- if(profile == NULL && profile_num != PROFILE_UNINITIALIZE)
- return FALSE;
-
- if(vel->profile_private != NULL){
- /* Here one could free old profile-private data */
- xfree(vel->profile_private);
- vel->profile_private = NULL;
- }
- /* Here one could init profile-private data */
- vel->Profile = profile;
- vel->statistics.profile_number = profile_num;
- return TRUE;
-}
-
-/**********************************************
- * driver interaction
- **********************************************/
-
-
-/**
- * device-specific profile
- *
- * The device-specific profile is intended as a hook for a driver
- * which may want to provide an own acceleration profile.
- * It should not rely on profile-private data, instead
- * it should do init/uninit in the driver (ie. with DEVICE_INIT and friends).
- * Users may override or choose it.
- */
-void
-SetDeviceSpecificAccelerationProfile(
- DeviceVelocityPtr vel,
- PointerAccelerationProfileFunc profile)
-{
- if(vel)
- vel->deviceSpecificProfile = profile;
-}
-
-/**
- * Use this function to obtain a DeviceVelocityPtr for a device. Will return NULL if
- * the predictable acceleration scheme is not in effect.
- */
-DeviceVelocityPtr
-GetDevicePredictableAccelData(
- DeviceIntPtr dev)
-{
- /*sanity check*/
- if(!dev){
- ErrorF("[dix] accel: DeviceIntPtr was NULL");
- return NULL;
- }
- if( dev->valuator &&
- dev->valuator->accelScheme.AccelSchemeProc ==
- acceleratePointerPredictable &&
- dev->valuator->accelScheme.accelData != NULL){
-
- return (DeviceVelocityPtr)dev->valuator->accelScheme.accelData;
- }
- return NULL;
-}
-
-/********************************
- * acceleration schemes
- *******************************/
-
-/**
- * Modifies valuators in-place.
- * This version employs a velocity approximation algorithm to
- * enable fine-grained predictable acceleration profiles.
- */
-void
-acceleratePointerPredictable(
- DeviceIntPtr dev,
- int first_valuator,
- int num_valuators,
- int *valuators,
- int evtime)
-{
- float mult = 0.0;
- int dx = 0, dy = 0;
- int *px = NULL, *py = NULL;
- DeviceVelocityPtr velocitydata =
- (DeviceVelocityPtr) dev->valuator->accelScheme.accelData;
- float fdx, fdy, tmp; /* no need to init */
- Bool soften = TRUE;
-
- if (!num_valuators || !valuators || !velocitydata)
- return;
-
- if (velocitydata->statistics.profile_number == AccelProfileNone &&
- velocitydata->const_acceleration == 1.0f) {
- return; /*we're inactive anyway, so skip the whole thing.*/
- }
-
- if (first_valuator == 0) {
- dx = valuators[0];
- px = &valuators[0];
- }
- if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
- dy = valuators[1 - first_valuator];
- py = &valuators[1 - first_valuator];
- }
-
- if (dx || dy){
- /* reset non-visible state? */
- if (ProcessVelocityData2D(velocitydata, dx , dy, evtime)) {
- soften = FALSE;
- }
-
- if (dev->ptrfeed && dev->ptrfeed->ctrl.num) {
- /* invoke acceleration profile to determine acceleration */
- mult = ComputeAcceleration (dev, velocitydata,
- dev->ptrfeed->ctrl.threshold,
- (float)dev->ptrfeed->ctrl.num /
- (float)dev->ptrfeed->ctrl.den);
-
- if(mult != 1.0 || velocitydata->const_acceleration != 1.0) {
- ApplySofteningAndConstantDeceleration( velocitydata,
- dx, dy,
- &fdx, &fdy,
- (mult > 1.0) && soften);
-
- if (dx) {
- tmp = mult * fdx + dev->last.remainder[0];
- /* Since it may not be apparent: lrintf() does not offer
- * strong statements about rounding; however because we
- * process each axis conditionally, there's no danger
- * of a toggling remainder. Its lack of guarantees likely
- * makes it faster on the average target. */
- *px = lrintf(tmp);
- dev->last.remainder[0] = tmp - (float)*px;
- }
- if (dy) {
- tmp = mult * fdy + dev->last.remainder[1];
- *py = lrintf(tmp);
- dev->last.remainder[1] = tmp - (float)*py;
- }
- DebugAccelF("pos (%i | %i) remainders x: %.3f y: %.3f delta x:%.3f y:%.3f\n",
- *px, *py, dev->last.remainder[0], dev->last.remainder[1], fdx, fdy);
- }
- }
- }
- /* remember last motion delta (for softening/slow movement treatment) */
- velocitydata->last_dx = dx;
- velocitydata->last_dy = dy;
-}
-
-
-
-/**
- * Originally a part of xf86PostMotionEvent; modifies valuators
- * in-place. Retained mostly for embedded scenarios.
- */
-void
-acceleratePointerLightweight(
- DeviceIntPtr dev,
- int first_valuator,
- int num_valuators,
- int *valuators,
- int ignored)
-{
- float mult = 0.0;
- int dx = 0, dy = 0;
- int *px = NULL, *py = NULL;
-
- if (!num_valuators || !valuators)
- return;
-
- if (first_valuator == 0) {
- dx = valuators[0];
- px = &valuators[0];
- }
- if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
- dy = valuators[1 - first_valuator];
- py = &valuators[1 - first_valuator];
- }
-
- if (!dx && !dy)
- return;
-
- if (dev->ptrfeed && dev->ptrfeed->ctrl.num) {
- /* modeled from xf86Events.c */
- if (dev->ptrfeed->ctrl.threshold) {
- if ((abs(dx) + abs(dy)) >= dev->ptrfeed->ctrl.threshold) {
- dev->last.remainder[0] = ((float)dx *
- (float)(dev->ptrfeed->ctrl.num)) /
- (float)(dev->ptrfeed->ctrl.den) +
- dev->last.remainder[0];
- if (px) {
- *px = (int)dev->last.remainder[0];
- dev->last.remainder[0] = dev->last.remainder[0] -
- (float)(*px);
- }
-
- dev->last.remainder[1] = ((float)dy *
- (float)(dev->ptrfeed->ctrl.num)) /
- (float)(dev->ptrfeed->ctrl.den) +
- dev->last.remainder[1];
- if (py) {
- *py = (int)dev->last.remainder[1];
- dev->last.remainder[1] = dev->last.remainder[1] -
- (float)(*py);
- }
- }
- }
- else {
- mult = pow((float)dx * (float)dx + (float)dy * (float)dy,
- ((float)(dev->ptrfeed->ctrl.num) /
- (float)(dev->ptrfeed->ctrl.den) - 1.0) /
- 2.0) / 2.0;
- if (dx) {
- dev->last.remainder[0] = mult * (float)dx +
- dev->last.remainder[0];
- *px = (int)dev->last.remainder[0];
- dev->last.remainder[0] = dev->last.remainder[0] -
- (float)(*px);
- }
- if (dy) {
- dev->last.remainder[1] = mult * (float)dy +
- dev->last.remainder[1];
- *py = (int)dev->last.remainder[1];
- dev->last.remainder[1] = dev->last.remainder[1] -
- (float)(*py);
- }
- }
- }
-}
+/*
+ *
+ * Copyright © 2006-2009 Simon Thum simon dot thum at gmx dot de
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifdef _MSC_VER
+#define _USE_MATH_DEFINES
+#endif
+
+#include <math.h>
+#include <ptrveloc.h>
+#include <exevents.h>
+#include <X11/Xatom.h>
+
+#include <xserver-properties.h>
+
+/*****************************************************************************
+ * Predictable pointer acceleration
+ *
+ * 2006-2009 by Simon Thum (simon [dot] thum [at] gmx de)
+ *
+ * Serves 3 complementary functions:
+ * 1) provide a sophisticated ballistic velocity estimate to improve
+ * the relation between velocity (of the device) and acceleration
+ * 2) make arbitrary acceleration profiles possible
+ * 3) decelerate by two means (constant and adaptive) if enabled
+ *
+ * Important concepts are the
+ *
+ * - Scheme
+ * which selects the basic algorithm
+ * (see devices.c/InitPointerAccelerationScheme)
+ * - Profile
+ * which returns an acceleration
+ * for a given velocity
+ *
+ * The profile can be selected by the user at runtime.
+ * The classic profile is intended to cleanly perform old-style
+ * function selection (threshold =/!= 0)
+ *
+ ****************************************************************************/
+
+#ifdef _MSC_VER
+#define inline __inline
+#define lrintf(val) ((int)val)
+#endif
+
+/* fwds */
+int
+SetAccelerationProfile(DeviceVelocityPtr vel, int profile_num);
+static float
+SimpleSmoothProfile(DeviceIntPtr dev, DeviceVelocityPtr vel, float velocity,
+ float threshold, float acc);
+static PointerAccelerationProfileFunc
+GetAccelerationProfile(DeviceVelocityPtr vel, int profile_num);
+
+/*#define PTRACCEL_DEBUGGING*/
+
+#ifdef PTRACCEL_DEBUGGING
+#define DebugAccelF ErrorF
+#else
+#define DebugAccelF(...) /* */
+#endif
+
+/********************************
+ * Init/Uninit
+ *******************************/
+
+/* some int which is not a profile number */
+#define PROFILE_UNINITIALIZE (-100)
+
+/* number of properties for predictable acceleration */
+#define NPROPS_PREDICTABLE_ACCEL 4
+
+/**
+ * Init struct so it should match the average case
+ */
+void
+InitVelocityData(DeviceVelocityPtr vel)
+{
+ memset(vel, 0, sizeof(DeviceVelocityRec));
+
+ vel->corr_mul = 10.0; /* dots per 10 milisecond should be usable */
+ vel->const_acceleration = 1.0; /* no acceleration/deceleration */
+ vel->reset_time = 300;
+ vel->use_softening = 1;
+ vel->min_acceleration = 1.0; /* don't decelerate */
+ vel->max_rel_diff = 0.2;
+ vel->max_diff = 1.0;
+ vel->initial_range = 2;
+ vel->average_accel = TRUE;
+ SetAccelerationProfile(vel, AccelProfileClassic);
+ InitTrackers(vel, 16);
+}
+
+
+/**
+ * Clean up
+ */
+void
+FreeVelocityData(DeviceVelocityPtr vel){
+ xfree(vel->tracker);
+ SetAccelerationProfile(vel, PROFILE_UNINITIALIZE);
+}
+
+
+/*
+ * dix uninit helper, called through scheme
+ */
+void
+AccelerationDefaultCleanup(DeviceIntPtr dev)
+{
+ /*sanity check*/
+ if( dev->valuator->accelScheme.AccelSchemeProc == acceleratePointerPredictable
+ && dev->valuator->accelScheme.accelData != NULL){
+ dev->valuator->accelScheme.AccelSchemeProc = NULL;
+ FreeVelocityData(dev->valuator->accelScheme.accelData);
+ xfree(dev->valuator->accelScheme.accelData);
+ dev->valuator->accelScheme.accelData = NULL;
+ DeletePredictableAccelerationProperties(dev);
+ }
+}
+
+
+/*************************
+ * Input property support
+ ************************/
+
+/**
+ * choose profile
+ */
+static int
+AccelSetProfileProperty(DeviceIntPtr dev, Atom atom,
+ XIPropertyValuePtr val, BOOL checkOnly)
+{
+ DeviceVelocityPtr vel;
+ int profile, *ptr = &profile;
+ int rc;
+ int nelem = 1;
+
+ if (atom != XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER))
+ return Success;
+
+ vel = GetDevicePredictableAccelData(dev);
+ if (!vel)
+ return BadValue;
+ rc = XIPropToInt(val, &nelem, &ptr);
+
+ if(checkOnly)
+ {
+ if (rc)
+ return rc;
+
+ if (GetAccelerationProfile(vel, profile) == NULL)
+ return BadValue;
+ } else
+ SetAccelerationProfile(vel, profile);
+
+ return Success;
+}
+
+static long
+AccelInitProfileProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
+{
+ int profile = vel->statistics.profile_number;
+ Atom prop_profile_number = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
+
+ XIChangeDeviceProperty(dev, prop_profile_number, XA_INTEGER, 32,
+ PropModeReplace, 1, &profile, FALSE);
+ XISetDevicePropertyDeletable(dev, prop_profile_number, FALSE);
+ return XIRegisterPropertyHandler(dev, AccelSetProfileProperty, NULL, NULL);
+}
+
+/**
+ * constant deceleration
+ */
+static int
+AccelSetDecelProperty(DeviceIntPtr dev, Atom atom,
+ XIPropertyValuePtr val, BOOL checkOnly)
+{
+ DeviceVelocityPtr vel;
+ float v, *ptr = &v;
+ int rc;
+ int nelem = 1;
+
+ if (atom != XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION))
+ return Success;
+
+ vel = GetDevicePredictableAccelData(dev);
+ if (!vel)
+ return BadValue;
+ rc = XIPropToFloat(val, &nelem, &ptr);
+
+ if(checkOnly)
+ {
+ if (rc)
+ return rc;
+ return (v >= 1.0f) ? Success : BadValue;
+ }
+
+ if(v >= 1.0f)
+ vel->const_acceleration = 1/v;
+
+ return Success;
+}
+
+static long
+AccelInitDecelProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
+{
+ float fval = 1.0/vel->const_acceleration;
+ Atom prop_const_decel = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
+ XIChangeDeviceProperty(dev, prop_const_decel,
+ XIGetKnownProperty(XATOM_FLOAT), 32,
+ PropModeReplace, 1, &fval, FALSE);
+ XISetDevicePropertyDeletable(dev, prop_const_decel, FALSE);
+ return XIRegisterPropertyHandler(dev, AccelSetDecelProperty, NULL, NULL);
+}
+
+
+/**
+ * adaptive deceleration
+ */
+static int
+AccelSetAdaptDecelProperty(DeviceIntPtr dev, Atom atom,
+ XIPropertyValuePtr val, BOOL checkOnly)
+{
+ DeviceVelocityPtr veloc;
+ float v, *ptr = &v;
+ int rc;
+ int nelem = 1;
+
+ if (atom != XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION))
+ return Success;
+
+ veloc = GetDevicePredictableAccelData(dev);
+ if (!veloc)
+ return BadValue;
+ rc = XIPropToFloat(val, &nelem, &ptr);
+
+ if(checkOnly)
+ {
+ if (rc)
+ return rc;
+ return (v >= 1.0f) ? Success : BadValue;
+ }
+
+ if(v >= 1.0f)
+ veloc->min_acceleration = 1/v;
+
+ return Success;
+}
+
+static long
+AccelInitAdaptDecelProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
+{
+ float fval = 1.0/vel->min_acceleration;
+ Atom prop_adapt_decel = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
+
+ XIChangeDeviceProperty(dev, prop_adapt_decel, XIGetKnownProperty(XATOM_FLOAT), 32,
+ PropModeReplace, 1, &fval, FALSE);
+ XISetDevicePropertyDeletable(dev, prop_adapt_decel, FALSE);
+ return XIRegisterPropertyHandler(dev, AccelSetAdaptDecelProperty, NULL, NULL);
+}
+
+
+/**
+ * velocity scaling
+ */
+static int
+AccelSetScaleProperty(DeviceIntPtr dev, Atom atom,
+ XIPropertyValuePtr val, BOOL checkOnly)
+{
+ DeviceVelocityPtr vel;
+ float v, *ptr = &v;
+ int rc;
+ int nelem = 1;
+
+ if (atom != XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING))
+ return Success;
+
+ vel = GetDevicePredictableAccelData(dev);
+ if (!vel)
+ return BadValue;
+ rc = XIPropToFloat(val, &nelem, &ptr);
+
+ if (checkOnly)
+ {
+ if (rc)
+ return rc;
+
+ return (v > 0) ? Success : BadValue;
+ }
+
+ if(v > 0)
+ vel->corr_mul = v;
+
+ return Success;
+}
+
+static long
+AccelInitScaleProperty(DeviceIntPtr dev, DeviceVelocityPtr vel)
+{
+ float fval = vel->corr_mul;
+ Atom prop_velo_scale = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
+
+ XIChangeDeviceProperty(dev, prop_velo_scale, XIGetKnownProperty(XATOM_FLOAT), 32,
+ PropModeReplace, 1, &fval, FALSE);
+ XISetDevicePropertyDeletable(dev, prop_velo_scale, FALSE);
+ return XIRegisterPropertyHandler(dev, AccelSetScaleProperty, NULL, NULL);
+}
+
+static int AccelPropHandlerPrivateKeyIndex;
+DevPrivateKey AccelPropHandlerPrivateKey = &AccelPropHandlerPrivateKeyIndex;
+
+BOOL
+InitializePredictableAccelerationProperties(DeviceIntPtr dev)
+{
+ DeviceVelocityPtr vel = GetDevicePredictableAccelData(dev);
+ long *prop_handlers;
+
+ if(!vel)
+ return FALSE;
+ prop_handlers = xalloc(NPROPS_PREDICTABLE_ACCEL * sizeof(long));
+
+ prop_handlers[0] = AccelInitProfileProperty(dev, vel);
+ prop_handlers[1] = AccelInitDecelProperty(dev, vel);
+ prop_handlers[2] = AccelInitAdaptDecelProperty(dev, vel);
+ prop_handlers[3] = AccelInitScaleProperty(dev, vel);
+
+ dixSetPrivate(&dev->devPrivates, AccelPropHandlerPrivateKey,
+ prop_handlers);
+
+ return TRUE;
+}
+
+BOOL
+DeletePredictableAccelerationProperties(DeviceIntPtr dev)
+{
+ Atom prop;
+ long *prop_handlers;
+ int i;
+
+ prop = XIGetKnownProperty(ACCEL_PROP_VELOCITY_SCALING);
+ XIDeleteDeviceProperty(dev, prop, FALSE);
+ prop = XIGetKnownProperty(ACCEL_PROP_ADAPTIVE_DECELERATION);
+ XIDeleteDeviceProperty(dev, prop, FALSE);
+ prop = XIGetKnownProperty(ACCEL_PROP_CONSTANT_DECELERATION);
+ XIDeleteDeviceProperty(dev, prop, FALSE);
+ prop = XIGetKnownProperty(ACCEL_PROP_PROFILE_NUMBER);
+ XIDeleteDeviceProperty(dev, prop, FALSE);
+
+ prop_handlers = dixLookupPrivate(&dev->devPrivates,
+ AccelPropHandlerPrivateKey);
+ dixSetPrivate(&dev->devPrivates, AccelPropHandlerPrivateKey, NULL);
+
+ for (i = 0; prop_handlers && i < NPROPS_PREDICTABLE_ACCEL; i++)
+ XIUnregisterPropertyHandler(dev, prop_handlers[i]);
+ xfree(prop_handlers);
+
+ return TRUE;
+}
+
+/*********************
+ * Tracking logic
+ ********************/
+
+void
+InitTrackers(DeviceVelocityPtr vel, int ntracker)
+{
+ if(ntracker < 1){
+ ErrorF("(dix ptracc) invalid number of trackers\n");
+ return;
+ }
+ xfree(vel->tracker);
+ vel->tracker = (MotionTrackerPtr)xalloc(ntracker * sizeof(MotionTracker));
+ memset(vel->tracker, 0, ntracker * sizeof(MotionTracker));
+ vel->num_tracker = ntracker;
+}
+
+/**
+ * return a bit field of possible directions.
+ * 0 = N, 2 = E, 4 = S, 6 = W, in-between is as you guess.
+ * There's no reason against widening to more precise directions (<45 degrees),
+ * should it not perform well. All this is needed for is sort out non-linear
+ * motion, so precision isn't paramount. However, one should not flag direction
+ * too narrow, since it would then cut the linear segment to zero size way too
+ * often.
+ */
+static int
+DoGetDirection(int dx, int dy){
+ float r;
+ int i1, i2;
+ /* on insignificant mickeys, flag 135 degrees */
+ if(abs(dx) < 2 && abs(dy < 2)){
+ /* first check diagonal cases */
+ if(dx > 0 && dy > 0)
+ return 4+8+16;
+ if(dx > 0 && dy < 0)
+ return 1+2+4;
+ if(dx < 0 && dy < 0)
+ return 1+128+64;
+ if(dx < 0 && dy > 0)
+ return 16+32+64;
+ /* check axis-aligned directions */
+ if(dx > 0)
+ return 2+4+8; /*E*/
+ if(dx < 0)
+ return 128+64+32; /*W*/
+ if(dy > 0)
+ return 32+16+8; /*S*/
+ if(dy < 0)
+ return 128+1+2; /*N*/
+ return 255; /* shouldn't happen */
+ }
+ /* else, compute angle and set appropriate flags */
+#ifdef _ISOC99_SOURCE
+ r = atan2f(dy, dx);
+#else
+ r = atan2(dy, dx);
+#endif
+ /* find direction. We avoid r to become negative,
+ * since C has no well-defined modulo for such cases. */
+ r = (r+(M_PI*2.5))/(M_PI/4);
+ /* this intends to flag 2 directions (90 degrees),
+ * except on very well-aligned mickeys. */
+ i1 = (int)(r+0.1) % 8;
+ i2 = (int)(r+0.9) % 8;
+ if(i1 < 0 || i1 > 7 || i2 < 0 || i2 > 7)
+ return 255; /* shouldn't happen */
+ return 1 << i1 | 1 << i2;
+}
+
+#define DIRECTION_CACHE_RANGE 5
+#define DIRECTION_CACHE_SIZE (DIRECTION_CACHE_RANGE*2+1)
+
+/* cache DoGetDirection(). */
+static int
+GetDirection(int dx, int dy){
+ static int cache[DIRECTION_CACHE_SIZE][DIRECTION_CACHE_SIZE];
+ int i;
+ if (abs(dx) <= DIRECTION_CACHE_RANGE &&
+ abs(dy) <= DIRECTION_CACHE_RANGE) {
+ /* cacheable */
+ i = cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy];
+ if(i != 0){
+ return i;
+ }else{
+ i = DoGetDirection(dx, dy);
+ cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy] = i;
+ return i;
+ }
+ }else{
+ /* non-cacheable */
+ return DoGetDirection(dx, dy);
+ }
+}
+
+#undef DIRECTION_CACHE_RANGE
+#undef DIRECTION_CACHE_SIZE
+
+
+/* convert offset (age) to array index */
+#define TRACKER_INDEX(s, d) (((s)->num_tracker + (s)->cur_tracker - (d)) % (s)->num_tracker)
+
+static inline void
+FeedTrackers(DeviceVelocityPtr vel, int dx, int dy, int cur_t)
+{
+ int n;
+ for(n = 0; n < vel->num_tracker; n++){
+ vel->tracker[n].dx += dx;
+ vel->tracker[n].dy += dy;
+ }
+ n = (vel->cur_tracker + 1) % vel->num_tracker;
+ vel->tracker[n].dx = 0;
+ vel->tracker[n].dy = 0;
+ vel->tracker[n].time = cur_t;
+ vel->tracker[n].dir = GetDirection(dx, dy);
+ DebugAccelF("(dix prtacc) motion [dx: %i dy: %i dir:%i diff: %i]\n",
+ dx, dy, vel->tracker[n].dir,
+ cur_t - vel->tracker[vel->cur_tracker].time);
+ vel->cur_tracker = n;
+}
+
+/**
+ * calc velocity for given tracker, with
+ * velocity scaling.
+ * This assumes linear motion.
+ */
+static float
+CalcTracker(DeviceVelocityPtr vel, int offset, int cur_t){
+ int index = TRACKER_INDEX(vel, offset);
+ float dist = sqrt( vel->tracker[index].dx * vel->tracker[index].dx
+ + vel->tracker[index].dy * vel->tracker[index].dy);
+ int dtime = cur_t - vel->tracker[index].time;
+ if(dtime > 0)
+ return (dist / dtime);
+ else
+ return 0;/* synonymous for NaN, since we're not C99 */
+}
+
+/* find the most plausible velocity. That is, the most distant
+ * (in time) tracker which isn't too old, beyond a linear partition,
+ * or simply too much off initial velocity.
+ *
+ * May return 0.
+ */
+static float
+QueryTrackers(DeviceVelocityPtr vel, int cur_t){
+ int n, offset, dir = 255, i = -1, age_ms;
+ /* initial velocity: a low-offset, valid velocity */
+ float iveloc = 0, res = 0, tmp, vdiff;
+ float vfac = vel->corr_mul * vel->const_acceleration; /* premultiply */
+ /* loop from current to older data */
+ for(offset = 1; offset < vel->num_tracker; offset++){
+ n = TRACKER_INDEX(vel, offset);
+
+ age_ms = cur_t - vel->tracker[n].time;
+
+ /* bail out if data is too old and protect from overrun */
+ if (age_ms >= vel->reset_time || age_ms < 0) {
+ DebugAccelF("(dix prtacc) query: tracker too old\n");
+ break;
+ }
+
+ /*
+ * this heuristic avoids using the linear-motion velocity formula
+ * in CalcTracker() on motion that isn't exactly linear. So to get
+ * even more precision we could subdivide as a final step, so possible
+ * non-linearities are accounted for.
+ */
+ dir &= vel->tracker[n].dir;
+ if(dir == 0){
+ DebugAccelF("(dix prtacc) query: no longer linear\n");
+ /* instead of breaking it we might also inspect the partition after,
+ * but actual improvement with this is probably rare. */
+ break;
+ }
+
+ tmp = CalcTracker(vel, offset, cur_t) * vfac;
+
+ if ((iveloc == 0 || offset <= vel->initial_range) && tmp != 0) {
+ /* set initial velocity and result */
+ res = iveloc = tmp;
+ i = offset;
+ } else if (iveloc != 0 && tmp != 0) {
+ vdiff = fabs(iveloc - tmp);
+ if (vdiff <= vel->max_diff ||
+ vdiff/(iveloc + tmp) < vel->max_rel_diff) {
+ /* we're in range with the initial velocity,
+ * so this result is likely better
+ * (it contains more information). */
+ res = tmp;
+ i = offset;
+ }else{
+ /* we're not in range, quit - it won't get better. */
+ DebugAccelF("(dix prtacc) query: tracker too different:"
+ " old %2.2f initial %2.2f diff: %2.2f\n",
+ tmp, iveloc, vdiff);
+ break;
+ }
+ }
+ }
+ if(offset == vel->num_tracker){
+ DebugAccelF("(dix prtacc) query: last tracker in effect\n");
+ i = vel->num_tracker-1;
+ }
+ if(i>=0){
+ n = TRACKER_INDEX(vel, i);
+ DebugAccelF("(dix prtacc) result: offset %i [dx: %i dy: %i diff: %i]\n",
+ i,
+ vel->tracker[n].dx,
+ vel->tracker[n].dy,
+ cur_t - vel->tracker[n].time);
+ }
+ return res;
+}
+
+#undef TRACKER_INDEX
+
+/**
+ * Perform velocity approximation based on 2D 'mickeys' (mouse motion delta).
+ * return true if non-visible state reset is suggested
+ */
+short
+ProcessVelocityData2D(
+ DeviceVelocityPtr vel,
+ int dx,
+ int dy,
+ int time)
+{
+ float velocity;
+
+ vel->last_velocity = vel->velocity;
+
+ FeedTrackers(vel, dx, dy, time);
+
+ velocity = QueryTrackers(vel, time);
+
+ vel->velocity = velocity;
+ return velocity == 0;
+}
+
+/**
+ * this flattens significant ( > 1) mickeys a little bit for more steady
+ * constant-velocity response
+ */
+static inline float
+ApplySimpleSoftening(int od, int d)
+{
+ float res = d;
+ if (d <= 1 && d >= -1)
+ return res;
+ if (d > od)
+ res -= 0.5;
+ else if (d < od)
+ res += 0.5;
+ return res;
+}
+
+
+static void
+ApplySofteningAndConstantDeceleration(
+ DeviceVelocityPtr vel,
+ int dx,
+ int dy,
+ float* fdx,
+ float* fdy,
+ short do_soften)
+{
+ if (do_soften && vel->use_softening) {
+ *fdx = ApplySimpleSoftening(vel->last_dx, dx);
+ *fdy = ApplySimpleSoftening(vel->last_dy, dy);
+ } else {
+ *fdx = dx;
+ *fdy = dy;
+ }
+
+ *fdx *= vel->const_acceleration;
+ *fdy *= vel->const_acceleration;
+}
+
+/*
+ * compute the acceleration for given velocity and enforce min_acceleartion
+ */
+float
+BasicComputeAcceleration(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc){
+
+ float result;
+ result = vel->Profile(dev, vel, velocity, threshold, acc);
+
+ /* enforce min_acceleration */
+ if (result < vel->min_acceleration)
+ result = vel->min_acceleration;
+ return result;
+}
+
+/**
+ * Compute acceleration. Takes into account averaging, nv-reset, etc.
+ */
+static float
+ComputeAcceleration(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float threshold,
+ float acc){
+ float res;
+
+ if(vel->velocity <= 0){
+ DebugAccelF("(dix ptracc) profile skipped\n");
+ /*
+ * If we have no idea about device velocity, don't pretend it.
+ */
+ return 1;
+ }
+
+ if(vel->average_accel && vel->velocity != vel->last_velocity){
+ /* use simpson's rule to average acceleration between
+ * current and previous velocity.
+ * Though being the more natural choice, it causes a minor delay
+ * in comparison, so it can be disabled. */
+ res = BasicComputeAcceleration(
+ dev, vel, vel->velocity, threshold, acc);
+ res += BasicComputeAcceleration(
+ dev, vel, vel->last_velocity, threshold, acc);
+ res += 4.0f * BasicComputeAcceleration(dev, vel,
+ (vel->last_velocity + vel->velocity) / 2,
+ threshold, acc);
+ res /= 6.0f;
+ DebugAccelF("(dix ptracc) profile average [%.2f ... %.2f] is %.3f\n",
+ vel->velocity, vel->last_velocity, res);
+ return res;
+ }else{
+ res = BasicComputeAcceleration(dev, vel,
+ vel->velocity, threshold, acc);
+ DebugAccelF("(dix ptracc) profile sample [%.2f] is %.3f\n",
+ vel->velocity, res);
+ return res;
+ }
+}
+
+
+/*****************************************
+ * Acceleration functions and profiles
+ ****************************************/
+
+/**
+ * Polynomial function similar previous one, but with f(1) = 1
+ */
+static float
+PolynomialAccelerationProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float ignored,
+ float acc)
+{
+ return pow(velocity, (acc - 1.0) * 0.5);
+}
+
+
+/**
+ * returns acceleration for velocity.
+ * This profile selects the two functions like the old scheme did
+ */
+static float
+ClassicProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ if (threshold > 0) {
+ return SimpleSmoothProfile (dev,
+ vel,
+ velocity,
+ threshold,
+ acc);
+ } else {
+ return PolynomialAccelerationProfile (dev,
+ vel,
+ velocity,
+ 0,
+ acc);
+ }
+}
+
+
+/**
+ * Power profile
+ * This has a completely smooth transition curve, i.e. no jumps in the
+ * derivatives.
+ *
+ * This has the expense of overall response dependency on min-acceleration.
+ * In effect, min_acceleration mimics const_acceleration in this profile.
+ */
+static float
+PowerProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ float vel_dist;
+
+ acc = (acc-1.0) * 0.1f + 1.0; /* without this, acc of 2 is unuseable */
+
+ if (velocity <= threshold)
+ return vel->min_acceleration;
+ vel_dist = velocity - threshold;
+ return (pow(acc, vel_dist)) * vel->min_acceleration;
+}
+
+
+/**
+ * just a smooth function in [0..1] -> [0..1]
+ * - point symmetry at 0.5
+ * - f'(0) = f'(1) = 0
+ * - starts faster than a sinoid
+ * - smoothness C1 (Cinf if you dare to ignore endpoints)
+ */
+static inline float
+CalcPenumbralGradient(float x){
+ x *= 2.0f;
+ x -= 1.0f;
+ return 0.5f + (x * sqrt(1.0f - x*x) + asin(x))/M_PI;
+}
+
+
+/**
+ * acceleration function similar to classic accelerated/unaccelerated,
+ * but with smooth transition in between (and towards zero for adaptive dec.).
+ */
+static float
+SimpleSmoothProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ if(velocity < 1.0f)
+ return CalcPenumbralGradient(0.5 + velocity*0.5) * 2.0f - 1.0f;
+ if(threshold < 1.0f)
+ threshold = 1.0f;
+ if (velocity <= threshold)
+ return 1;
+ velocity /= threshold;
+ if (velocity >= acc)
+ return acc;
+ else
+ return 1.0f + (CalcPenumbralGradient(velocity/acc) * (acc - 1.0f));
+}
+
+
+/**
+ * This profile uses the first half of the penumbral gradient as a start
+ * and then scales linearly.
+ */
+static float
+SmoothLinearProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ float res, nv;
+
+ if(acc > 1.0f)
+ acc -= 1.0f; /*this is so acc = 1 is no acceleration */
+ else
+ return 1.0f;
+
+ nv = (velocity - threshold) * acc * 0.5f;
+
+ if(nv < 0){
+ res = 0;
+ }else if(nv < 2){
+ res = CalcPenumbralGradient(nv*0.25f)*2.0f;
+ }else{
+ nv -= 2.0f;
+ res = nv * 2.0f / M_PI /* steepness of gradient at 0.5 */
+ + 1.0f; /* gradient crosses 2|1 */
+ }
+ res += vel->min_acceleration;
+ return res;
+}
+
+
+/**
+ * From 0 to threshold, the response graduates smoothly from min_accel to
+ * acceleration. Beyond threshold it is exactly the specified acceleration.
+ */
+static float
+SmoothLimitedProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ float res;
+
+ if(velocity >= threshold || threshold == 0.0f)
+ return acc;
+
+ velocity /= threshold; /* should be [0..1[ now */
+
+ res = CalcPenumbralGradient(velocity) * (acc - vel->min_acceleration);
+
+ return vel->min_acceleration + res;
+}
+
+
+static float
+LinearProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ return acc * velocity;
+}
+
+static float
+NoProfile(
+ DeviceIntPtr dev,
+ DeviceVelocityPtr vel,
+ float velocity,
+ float threshold,
+ float acc)
+{
+ return 1.0f;
+}
+
+static PointerAccelerationProfileFunc
+GetAccelerationProfile(
+ DeviceVelocityPtr vel,
+ int profile_num)
+{
+ switch(profile_num){
+ case AccelProfileClassic:
+ return ClassicProfile;
+ case AccelProfileDeviceSpecific:
+ return vel->deviceSpecificProfile;
+ case AccelProfilePolynomial:
+ return PolynomialAccelerationProfile;
+ case AccelProfileSmoothLinear:
+ return SmoothLinearProfile;
+ case AccelProfileSimple:
+ return SimpleSmoothProfile;
+ case AccelProfilePower:
+ return PowerProfile;
+ case AccelProfileLinear:
+ return LinearProfile;
+ case AccelProfileSmoothLimited:
+ return SmoothLimitedProfile;
+ case AccelProfileNone:
+ return NoProfile;
+ default:
+ return NULL;
+ }
+}
+
+/**
+ * Set the profile by number.
+ * Intended to make profiles exchangeable at runtime.
+ * If you created a profile, give it a number here and in the header to
+ * make it selectable. In case some profile-specific init is needed, here
+ * would be a good place, since FreeVelocityData() also calls this with
+ * PROFILE_UNINITIALIZE.
+ *
+ * returns FALSE if profile number is unavailable, TRUE otherwise.
+ */
+int
+SetAccelerationProfile(
+ DeviceVelocityPtr vel,
+ int profile_num)
+{
+ PointerAccelerationProfileFunc profile;
+ profile = GetAccelerationProfile(vel, profile_num);
+
+ if(profile == NULL && profile_num != PROFILE_UNINITIALIZE)
+ return FALSE;
+
+ if(vel->profile_private != NULL){
+ /* Here one could free old profile-private data */
+ xfree(vel->profile_private);
+ vel->profile_private = NULL;
+ }
+ /* Here one could init profile-private data */
+ vel->Profile = profile;
+ vel->statistics.profile_number = profile_num;
+ return TRUE;
+}
+
+/**********************************************
+ * driver interaction
+ **********************************************/
+
+
+/**
+ * device-specific profile
+ *
+ * The device-specific profile is intended as a hook for a driver
+ * which may want to provide an own acceleration profile.
+ * It should not rely on profile-private data, instead
+ * it should do init/uninit in the driver (ie. with DEVICE_INIT and friends).
+ * Users may override or choose it.
+ */
+void
+SetDeviceSpecificAccelerationProfile(
+ DeviceVelocityPtr vel,
+ PointerAccelerationProfileFunc profile)
+{
+ if(vel)
+ vel->deviceSpecificProfile = profile;
+}
+
+/**
+ * Use this function to obtain a DeviceVelocityPtr for a device. Will return NULL if
+ * the predictable acceleration scheme is not in effect.
+ */
+DeviceVelocityPtr
+GetDevicePredictableAccelData(
+ DeviceIntPtr dev)
+{
+ /*sanity check*/
+ if(!dev){
+ ErrorF("[dix] accel: DeviceIntPtr was NULL");
+ return NULL;
+ }
+ if( dev->valuator &&
+ dev->valuator->accelScheme.AccelSchemeProc ==
+ acceleratePointerPredictable &&
+ dev->valuator->accelScheme.accelData != NULL){
+
+ return (DeviceVelocityPtr)dev->valuator->accelScheme.accelData;
+ }
+ return NULL;
+}
+
+/********************************
+ * acceleration schemes
+ *******************************/
+
+/**
+ * Modifies valuators in-place.
+ * This version employs a velocity approximation algorithm to
+ * enable fine-grained predictable acceleration profiles.
+ */
+void
+acceleratePointerPredictable(
+ DeviceIntPtr dev,
+ int first_valuator,
+ int num_valuators,
+ int *valuators,
+ int evtime)
+{
+ float mult = 0.0;
+ int dx = 0, dy = 0;
+ int *px = NULL, *py = NULL;
+ DeviceVelocityPtr velocitydata =
+ (DeviceVelocityPtr) dev->valuator->accelScheme.accelData;
+ float fdx, fdy, tmp; /* no need to init */
+ Bool soften = TRUE;
+
+ if (!num_valuators || !valuators || !velocitydata)
+ return;
+
+ if (velocitydata->statistics.profile_number == AccelProfileNone &&
+ velocitydata->const_acceleration == 1.0f) {
+ return; /*we're inactive anyway, so skip the whole thing.*/
+ }
+
+ if (first_valuator == 0) {
+ dx = valuators[0];
+ px = &valuators[0];
+ }
+ if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
+ dy = valuators[1 - first_valuator];
+ py = &valuators[1 - first_valuator];
+ }
+
+ if (dx || dy){
+ /* reset non-visible state? */
+ if (ProcessVelocityData2D(velocitydata, dx , dy, evtime)) {
+ soften = FALSE;
+ }
+
+ if (dev->ptrfeed && dev->ptrfeed->ctrl.num) {
+ /* invoke acceleration profile to determine acceleration */
+ mult = ComputeAcceleration (dev, velocitydata,
+ dev->ptrfeed->ctrl.threshold,
+ (float)dev->ptrfeed->ctrl.num /
+ (float)dev->ptrfeed->ctrl.den);
+
+ if(mult != 1.0 || velocitydata->const_acceleration != 1.0) {
+ ApplySofteningAndConstantDeceleration( velocitydata,
+ dx, dy,
+ &fdx, &fdy,
+ (mult > 1.0) && soften);
+
+ if (dx) {
+ tmp = mult * fdx + dev->last.remainder[0];
+ /* Since it may not be apparent: lrintf() does not offer
+ * strong statements about rounding; however because we
+ * process each axis conditionally, there's no danger
+ * of a toggling remainder. Its lack of guarantees likely
+ * makes it faster on the average target. */
+ *px = lrintf(tmp);
+ dev->last.remainder[0] = tmp - (float)*px;
+ }
+ if (dy) {
+ tmp = mult * fdy + dev->last.remainder[1];
+ *py = lrintf(tmp);
+ dev->last.remainder[1] = tmp - (float)*py;
+ }
+ DebugAccelF("pos (%i | %i) remainders x: %.3f y: %.3f delta x:%.3f y:%.3f\n",
+ *px, *py, dev->last.remainder[0], dev->last.remainder[1], fdx, fdy);
+ }
+ }
+ }
+ /* remember last motion delta (for softening/slow movement treatment) */
+ velocitydata->last_dx = dx;
+ velocitydata->last_dy = dy;
+}
+
+
+
+/**
+ * Originally a part of xf86PostMotionEvent; modifies valuators
+ * in-place. Retained mostly for embedded scenarios.
+ */
+void
+acceleratePointerLightweight(
+ DeviceIntPtr dev,
+ int first_valuator,
+ int num_valuators,
+ int *valuators,
+ int ignored)
+{
+ float mult = 0.0;
+ int dx = 0, dy = 0;
+ int *px = NULL, *py = NULL;
+
+ if (!num_valuators || !valuators)
+ return;
+
+ if (first_valuator == 0) {
+ dx = valuators[0];
+ px = &valuators[0];
+ }
+ if (first_valuator <= 1 && num_valuators >= (2 - first_valuator)) {
+ dy = valuators[1 - first_valuator];
+ py = &valuators[1 - first_valuator];
+ }
+
+ if (!dx && !dy)
+ return;
+
+ if (dev->ptrfeed && dev->ptrfeed->ctrl.num) {
+ /* modeled from xf86Events.c */
+ if (dev->ptrfeed->ctrl.threshold) {
+ if ((abs(dx) + abs(dy)) >= dev->ptrfeed->ctrl.threshold) {
+ dev->last.remainder[0] = ((float)dx *
+ (float)(dev->ptrfeed->ctrl.num)) /
+ (float)(dev->ptrfeed->ctrl.den) +
+ dev->last.remainder[0];
+ if (px) {
+ *px = (int)dev->last.remainder[0];
+ dev->last.remainder[0] = dev->last.remainder[0] -
+ (float)(*px);
+ }
+
+ dev->last.remainder[1] = ((float)dy *
+ (float)(dev->ptrfeed->ctrl.num)) /
+ (float)(dev->ptrfeed->ctrl.den) +
+ dev->last.remainder[1];
+ if (py) {
+ *py = (int)dev->last.remainder[1];
+ dev->last.remainder[1] = dev->last.remainder[1] -
+ (float)(*py);
+ }
+ }
+ }
+ else {
+ mult = pow((float)dx * (float)dx + (float)dy * (float)dy,
+ ((float)(dev->ptrfeed->ctrl.num) /
+ (float)(dev->ptrfeed->ctrl.den) - 1.0) /
+ 2.0) / 2.0;
+ if (dx) {
+ dev->last.remainder[0] = mult * (float)dx +
+ dev->last.remainder[0];
+ *px = (int)dev->last.remainder[0];
+ dev->last.remainder[0] = dev->last.remainder[0] -
+ (float)(*px);
+ }
+ if (dy) {
+ dev->last.remainder[1] = mult * (float)dy +
+ dev->last.remainder[1];
+ *py = (int)dev->last.remainder[1];
+ dev->last.remainder[1] = dev->last.remainder[1] -
+ (float)(*py);
+ }
+ }
+ }
+}
diff --git a/xorg-server/dix/registry.c b/xorg-server/dix/registry.c
index fde2800f2..d5c801321 100644
--- a/xorg-server/dix/registry.c
+++ b/xorg-server/dix/registry.c
@@ -25,6 +25,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <stdlib.h>
#include <string.h>
+#include <unistd.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include "resource.h"