mesa xserver pixman git update 25 nov 2011

1 files changed, 215 insertions, 218 deletions

diff --git a/xorg-server/dix/atom.c b/xorg-server/dix/atom.c
index 210641bd4..83ff71a7d 100644
--- a/xorg-server/dix/atom.c
+++ b/xorg-server/dix/atom.c
@@ -1,218 +1,215 @@
-/***********************************************************

-

-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/Xatom.h>

-#include <stdio.h>

-#include <string.h>

-#include "misc.h"

-#include "resource.h"

-#include "dix.h"

-

-#define InitialTableSize 100

-

-typedef struct _Node {

-    struct _Node   *left,   *right;

-    Atom a;

-    unsigned int fingerPrint;

-    const char   *string;

-} NodeRec, *NodePtr;

-

-static Atom lastAtom = None;

-static NodePtr atomRoot = NULL;

-static unsigned long tableLength;

-static NodePtr *nodeTable;

-

-void FreeAtom(NodePtr patom);

-

-Atom

-MakeAtom(const char *string, unsigned len, Bool makeit)

-{

-    NodePtr * np;

-    unsigned i;

-    int comp;

-    unsigned int fp = 0;

-

-    np = &atomRoot;

-    for (i = 0; i < (len+1)/2; i++)

-    {

-	fp = fp * 27 + string[i];

-	fp = fp * 27 + string[len - 1 - i];

-    }

-    while (*np != NULL)

-    {

-	if (fp < (*np)->fingerPrint)

-	    np = &((*np)->left);

-	else if (fp > (*np)->fingerPrint)

-	    np = &((*np)->right);

-	else

-	{			       /* now start testing the strings */

-	    comp = strncmp(string, (*np)->string, (int)len);

-	    if ((comp < 0) || ((comp == 0) && (len < strlen((*np)->string))))

-		np = &((*np)->left);

-	    else if (comp > 0)

-		np = &((*np)->right);

-	    else

-		return(*np)->a;

-	    }

-    }

-    if (makeit)

-    {

-	NodePtr nd;

-

-	nd = malloc(sizeof(NodeRec));

-	if (!nd)

-	    return BAD_RESOURCE;

-	if (lastAtom < XA_LAST_PREDEFINED)

-	{

-	    nd->string = string;

-	}

-	else

-	{

-	    char *newstring = malloc(len + 1);

-	    if (!newstring) {

-		free(nd);

-		return BAD_RESOURCE;

-	    }

-	    strncpy(newstring, string, (int)len);

-	    newstring[len] = 0;

-	    nd->string = newstring;

-	}

-	if ((lastAtom + 1) >= tableLength) {

-	    NodePtr *table;

-

-	    table = realloc(nodeTable, tableLength * (2 * sizeof(NodePtr)));

-	    if (!table) {

-		if (nd->string != string) {

-                    /* nd->string has been strdup'ed */

-		    free((char *)nd->string);

-                }

-		free(nd);

-		return BAD_RESOURCE;

-	    }

-	    tableLength <<= 1;

-	    nodeTable = table;

-	}

-	*np = nd;

-	nd->left = nd->right = NULL;

-	nd->fingerPrint = fp;

-	nd->a = ++lastAtom;

-	nodeTable[lastAtom] = nd;

-	return nd->a;

-    }

-    else

-	return None;

-}

-

-Bool

-ValidAtom(Atom atom)

-{

-    return (atom != None) && (atom <= lastAtom);

-}

-

-const char *

-NameForAtom(Atom atom)

-{

-    NodePtr node;

-    if (atom > lastAtom) return 0;

-    if ((node = nodeTable[atom]) == NULL) return 0;

-    return node->string;

-}

-

-void

-AtomError(void)

-{

-    FatalError("initializing atoms");

-}

-

-void

-FreeAtom(NodePtr patom)

-{

-    if(patom->left)

-	FreeAtom(patom->left);

-    if(patom->right)

-	FreeAtom(patom->right);

-    if (patom->a > XA_LAST_PREDEFINED) {

-        /*

-         * All strings above XA_LAST_PREDEFINED are strdup'ed, so it's safe to

-         * cast here

-         */

-	free((char *)patom->string);

-    }

-    free(patom);

-}

-

-void

-FreeAllAtoms(void)

-{

-    if (atomRoot == NULL)

-	return;

-    FreeAtom(atomRoot);

-    atomRoot = NULL;

-    free(nodeTable);

-    nodeTable = NULL;

-    lastAtom = None;

-}

-

-void

-InitAtoms(void)

-{

-    FreeAllAtoms();

-    tableLength = InitialTableSize;

-    nodeTable = malloc(InitialTableSize * sizeof(NodePtr));

-    if (!nodeTable)

-	AtomError();

-    nodeTable[None] = NULL;

-    MakePredeclaredAtoms();

-    if (lastAtom != XA_LAST_PREDEFINED)

-	AtomError();

-}

+/***********************************************************
+
+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/Xatom.h>
+#include <stdio.h>
+#include <string.h>
+#include "misc.h"
+#include "resource.h"
+#include "dix.h"
+
+#define InitialTableSize 100
+
+typedef struct _Node {
+    struct _Node   *left,   *right;
+    Atom a;
+    unsigned int fingerPrint;
+    const char   *string;
+} NodeRec, *NodePtr;
+
+static Atom lastAtom = None;
+static NodePtr atomRoot = NULL;
+static unsigned long tableLength;
+static NodePtr *nodeTable;
+
+void FreeAtom(NodePtr patom);
+
+Atom
+MakeAtom(const char *string, unsigned len, Bool makeit)
+{
+    NodePtr * np;
+    unsigned i;
+    int comp;
+    unsigned int fp = 0;
+
+    np = &atomRoot;
+    for (i = 0; i < (len+1)/2; i++)
+    {
+	fp = fp * 27 + string[i];
+	fp = fp * 27 + string[len - 1 - i];
+    }
+    while (*np != NULL)
+    {
+	if (fp < (*np)->fingerPrint)
+	    np = &((*np)->left);
+	else if (fp > (*np)->fingerPrint)
+	    np = &((*np)->right);
+	else
+	{			       /* now start testing the strings */
+	    comp = strncmp(string, (*np)->string, (int)len);
+	    if ((comp < 0) || ((comp == 0) && (len < strlen((*np)->string))))
+		np = &((*np)->left);
+	    else if (comp > 0)
+		np = &((*np)->right);
+	    else
+		return(*np)->a;
+	    }
+    }
+    if (makeit)
+    {
+	NodePtr nd;
+
+	nd = malloc(sizeof(NodeRec));
+	if (!nd)
+	    return BAD_RESOURCE;
+	if (lastAtom < XA_LAST_PREDEFINED)
+	{
+	    nd->string = string;
+	}
+	else
+	{
+	    nd->string = strndup(string, len);
+	    if (!nd->string) {
+		free(nd);
+		return BAD_RESOURCE;
+	    }
+	}
+	if ((lastAtom + 1) >= tableLength) {
+	    NodePtr *table;
+
+	    table = realloc(nodeTable, tableLength * (2 * sizeof(NodePtr)));
+	    if (!table) {
+		if (nd->string != string) {
+                    /* nd->string has been strdup'ed */
+		    free((char *)nd->string);
+                }
+		free(nd);
+		return BAD_RESOURCE;
+	    }
+	    tableLength <<= 1;
+	    nodeTable = table;
+	}
+	*np = nd;
+	nd->left = nd->right = NULL;
+	nd->fingerPrint = fp;
+	nd->a = ++lastAtom;
+	nodeTable[lastAtom] = nd;
+	return nd->a;
+    }
+    else
+	return None;
+}
+
+Bool
+ValidAtom(Atom atom)
+{
+    return (atom != None) && (atom <= lastAtom);
+}
+
+const char *
+NameForAtom(Atom atom)
+{
+    NodePtr node;
+    if (atom > lastAtom) return 0;
+    if ((node = nodeTable[atom]) == NULL) return 0;
+    return node->string;
+}
+
+void
+AtomError(void)
+{
+    FatalError("initializing atoms");
+}
+
+void
+FreeAtom(NodePtr patom)
+{
+    if(patom->left)
+	FreeAtom(patom->left);
+    if(patom->right)
+	FreeAtom(patom->right);
+    if (patom->a > XA_LAST_PREDEFINED) {
+        /*
+         * All strings above XA_LAST_PREDEFINED are strdup'ed, so it's safe to
+         * cast here
+         */
+	free((char *)patom->string);
+    }
+    free(patom);
+}
+
+void
+FreeAllAtoms(void)
+{
+    if (atomRoot == NULL)
+	return;
+    FreeAtom(atomRoot);
+    atomRoot = NULL;
+    free(nodeTable);
+    nodeTable = NULL;
+    lastAtom = None;
+}
+
+void
+InitAtoms(void)
+{
+    FreeAllAtoms();
+    tableLength = InitialTableSize;
+    nodeTable = malloc(InitialTableSize * sizeof(NodePtr));
+    if (!nodeTable)
+	AtomError();
+    nodeTable[None] = NULL;
+    MakePredeclaredAtoms();
+    if (lastAtom != XA_LAST_PREDEFINED)
+	AtomError();
+}