sync code with last improvements from OpenBSD

2023-08-28 05:57:34 +00:00 · 2023-08-28 05:57:34 +00:00 · 88965415ff
commit 88965415ff
26235 changed files with 29195616 additions and 0 deletions
--- a/lib/libX11/src/ModMap.c
+++ b/lib/libX11/src/ModMap.c
@ -0,0 +1,185 @@
+/*
+
+Copyright 1986, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include "Xlibint.h"
+#include "reallocarray.h"
+#include <limits.h>
+
+XModifierKeymap *
+XGetModifierMapping(register Display *dpy)
+{
+    xGetModifierMappingReply rep;
+    _X_UNUSED register xReq *req;
+    unsigned long nbytes;
+    XModifierKeymap *res;
+
+    LockDisplay(dpy);
+    GetEmptyReq(GetModifierMapping, req);
+    (void) _XReply (dpy, (xReply *)&rep, 0, xFalse);
+
+    if (rep.length < (INT_MAX >> 2) &&
+	(rep.length >> 1) == rep.numKeyPerModifier) {
+	nbytes = (unsigned long)rep.length << 2;
+	res = Xmalloc(sizeof (XModifierKeymap));
+	if (res)
+	    res->modifiermap = Xmalloc (nbytes);
+    } else
+	res = NULL;
+    if ((! res) || (! res->modifiermap)) {
+	Xfree(res);
+	res = (XModifierKeymap *) NULL;
+	_XEatDataWords(dpy, rep.length);
+    } else {
+	_XReadPad(dpy, (char *) res->modifiermap, (long) nbytes);
+	res->max_keypermod = rep.numKeyPerModifier;
+    }
+
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return (res);
+}
+
+/*
+ *	Returns:
+ *	MappingSuccess (0)	Success
+ *	MappingBusy (1) 	Busy - one or more old or new modifiers are down
+ *	MappingFailed (2)	Failed - one or more new modifiers unacceptable
+ */
+int
+XSetModifierMapping(
+    register Display *dpy,
+    register XModifierKeymap *modifier_map)
+{
+    register xSetModifierMappingReq *req;
+    xSetModifierMappingReply rep;
+    int         mapSize = modifier_map->max_keypermod << 3;	/* 8 modifiers */
+
+    LockDisplay(dpy);
+    GetReq(SetModifierMapping, req);
+    req->length += mapSize >> 2;
+    req->numKeyPerModifier = modifier_map->max_keypermod;
+
+    Data(dpy, (const char *)modifier_map->modifiermap, mapSize);
+
+    (void) _XReply(dpy, (xReply *) & rep,
+	(SIZEOF(xSetModifierMappingReply) - SIZEOF(xReply)) >> 2, xTrue);
+    UnlockDisplay(dpy);
+    SyncHandle();
+    return (rep.success);
+}
+
+XModifierKeymap *
+XNewModifiermap(int keyspermodifier)
+{
+    XModifierKeymap *res = Xmalloc((sizeof (XModifierKeymap)));
+    if (res) {
+	res->max_keypermod = keyspermodifier;
+	res->modifiermap = (keyspermodifier > 0 ?
+			    Xmallocarray(keyspermodifier, 8)
+			    : (KeyCode *) NULL);
+	if (keyspermodifier && (res->modifiermap == NULL)) {
+	    Xfree(res);
+	    return (XModifierKeymap *) NULL;
+	}
+    }
+    return (res);
+}
+
+
+int
+XFreeModifiermap(XModifierKeymap *map)
+{
+    if (map) {
+        Xfree(map->modifiermap);
+	Xfree(map);
+    }
+    return 1;
+}
+
+XModifierKeymap *
+XInsertModifiermapEntry(XModifierKeymap *map,
+#if NeedWidePrototypes
+			unsigned int keycode,
+#else
+			KeyCode keycode,
+#endif
+			int modifier)
+{
+    XModifierKeymap *newmap;
+    int i,
+	row = modifier * map->max_keypermod,
+	newrow,
+	lastrow;
+
+    for (i=0; i<map->max_keypermod; i++) {
+        if (map->modifiermap[ row+i ] == keycode)
+	    return(map); /* already in the map */
+        if (map->modifiermap[ row+i ] == 0) {
+            map->modifiermap[ row+i ] = keycode;
+	    return(map); /* we added it without stretching the map */
+	}
+    }
+
+    /* stretch the map */
+    if ((newmap = XNewModifiermap(map->max_keypermod+1)) == NULL)
+	return (XModifierKeymap *) NULL;
+    newrow = row = 0;
+    lastrow = newmap->max_keypermod * 8;
+    while (newrow < lastrow) {
+	for (i=0; i<map->max_keypermod; i++)
+	    newmap->modifiermap[ newrow+i ] = map->modifiermap[ row+i ];
+	newmap->modifiermap[ newrow+i ] = 0;
+	row += map->max_keypermod;
+	newrow += newmap->max_keypermod;
+    }
+    (void) XFreeModifiermap(map);
+    newrow = newmap->max_keypermod * modifier + newmap->max_keypermod - 1;
+    newmap->modifiermap[ newrow ] = keycode;
+    return(newmap);
+}
+
+XModifierKeymap *
+XDeleteModifiermapEntry(XModifierKeymap *map,
+#if NeedWidePrototypes
+			unsigned int keycode,
+#else
+			KeyCode keycode,
+#endif
+			int modifier)
+{
+    int i,
+	row = modifier * map->max_keypermod;
+
+    for (i=0; i<map->max_keypermod; i++) {
+        if (map->modifiermap[ row+i ] == keycode)
+            map->modifiermap[ row+i ] = 0;
+    }
+    /* should we shrink the map?? */
+    return (map);
+}