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+/* $Xorg: XGetDCtl.c,v 1.4 2001/02/09 02:03:50 xorgcvs Exp $ */
+
+/************************************************************
+
+Copyright 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 1989 by Hewlett-Packard Company, Palo Alto, California.
+
+ 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 Hewlett-Packard not be
+used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
+ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
+HEWLETT-PACKARD 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.
+
+********************************************************/
+/* $XFree86: xc/lib/Xi/XGetDCtl.c,v 3.3 2001/12/14 19:55:13 dawes Exp $ */
+
+/***********************************************************************
+ *
+ * XGetDeviceControl - get the Device control state of an extension device.
+ *
+ */
+
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include <X11/Xlibint.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/XInput.h>
+#include <X11/extensions/extutil.h>
+#include "XIint.h"
+
+XDeviceControl
+*XGetDeviceControl (dpy, dev, control)
+ register Display *dpy;
+ XDevice *dev;
+ int control;
+ {
+ int size = 0;
+ int nbytes, i;
+ XDeviceControl *Device = NULL;
+ XDeviceControl *Sav = NULL;
+ xDeviceState *d = NULL;
+ xDeviceState *sav = NULL;
+ xGetDeviceControlReq *req;
+ xGetDeviceControlReply rep;
+ XExtDisplayInfo *info = XInput_find_display (dpy);
+
+ LockDisplay (dpy);
+ if (_XiCheckExtInit(dpy, XInput_Add_XChangeDeviceControl) == -1)
+ return ((XDeviceControl *) NoSuchExtension);
+
+ GetReq(GetDeviceControl,req);
+ req->reqType = info->codes->major_opcode;
+ req->ReqType = X_GetDeviceControl;
+ req->deviceid = dev->device_id;
+ req->control = control;
+
+ if (! _XReply (dpy, (xReply *) &rep, 0, xFalse))
+ {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (XDeviceControl *) NULL;
+ }
+ if (rep.length > 0)
+ {
+ nbytes = (long)rep.length << 2;
+ d = (xDeviceState *) Xmalloc((unsigned) nbytes);
+ if (!d)
+ {
+ _XEatData (dpy, (unsigned long) nbytes);
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (XDeviceControl *) NULL;
+ }
+ sav = d;
+ _XRead (dpy, (char *) d, nbytes);
+
+ switch (d->control)
+ {
+ case DEVICE_RESOLUTION:
+ {
+ xDeviceResolutionState *r;
+
+ r = (xDeviceResolutionState *) d;
+ size += sizeof (XDeviceResolutionState) +
+ (3 * sizeof(int) * r->num_valuators);
+ break;
+ }
+ default:
+ size += d->length;
+ break;
+ }
+
+ Device = (XDeviceControl *) Xmalloc((unsigned) size);
+ if (!Device)
+ {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (XDeviceControl *) NULL;
+ }
+ Sav = Device;
+
+ d = sav;
+ switch (control)
+ {
+ case DEVICE_RESOLUTION:
+ {
+ int *iptr, *iptr2;
+ xDeviceResolutionState *r;
+ XDeviceResolutionState *R;
+ r = (xDeviceResolutionState *) d;
+ R = (XDeviceResolutionState *) Device;
+
+ R->control = DEVICE_RESOLUTION;
+ R->length = sizeof (XDeviceResolutionState);
+ R->num_valuators = r->num_valuators;
+ iptr = (int *) (R+1);
+ iptr2 = (int *) (r+1);
+ R->resolutions = iptr;
+ R->min_resolutions = iptr + R->num_valuators;
+ R->max_resolutions = iptr + (2 * R->num_valuators);
+ for (i=0; i < (3 * R->num_valuators); i++)
+ *iptr++ = *iptr2++;
+ break;
+ }
+ default:
+ break;
+ }
+ XFree (sav);
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return (Sav);
+ }
+
+void XFreeDeviceControl (control)
+ XDeviceControl *control;
+ {
+ XFree (control);
+ }