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- /* $XConsortium: xgetdctl.c,v 1.1 91/07/24 15:50:52 rws Exp $ */
-
- /************************************************************
- Copyright (c) 1989 by Hewlett-Packard Company, Palo Alto, California, and the
- Massachusetts Institute of Technology, Cambridge, 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 names of Hewlett-Packard or MIT 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.
-
- ********************************************************/
-
- /********************************************************************
- *
- * Get Device control attributes for an extension device.
- *
- */
-
- #define NEED_EVENTS /* for inputstr.h */
- #define NEED_REPLIES
- #include "X.h" /* for inputstr.h */
- #include "Xproto.h" /* Request macro */
- #include "inputstr.h" /* DeviceIntPtr */
- #include "XI.h"
- #include "XIproto.h"
-
- extern int IReqCode;
- extern int BadDevice;
- extern void (* ReplySwapVector[256]) ();
- DeviceIntPtr LookupDeviceIntRec();
- void CopySwapDeviceResolution();
-
- /***********************************************************************
- *
- * This procedure gets the control attributes for an extension device,
- * for clients on machines with a different byte ordering than the server.
- *
- */
-
- int
- SProcXGetDeviceControl(client)
- register ClientPtr client;
- {
- register char n;
-
- REQUEST(xGetDeviceControlReq);
- swaps(&stuff->length, n);
- swaps(&stuff->control, n);
- return(ProcXGetDeviceControl(client));
- }
-
- /***********************************************************************
- *
- * Get the state of the specified device control.
- *
- */
-
- ProcXGetDeviceControl(client)
- ClientPtr client;
- {
- int total_length = 0;
- char *buf, *savbuf;
- register DeviceIntPtr dev;
- xGetDeviceControlReply rep;
-
- REQUEST(xGetDeviceControlReq);
- REQUEST_SIZE_MATCH(xGetDeviceControlReq);
-
- dev = LookupDeviceIntRec (stuff->deviceid);
- if (dev == NULL)
- {
- SendErrorToClient (client, IReqCode, X_GetDeviceControl, 0,
- BadDevice);
- return Success;
- }
-
- rep.repType = X_Reply;
- rep.RepType = X_GetDeviceControl;
- rep.length = 0;
- rep.sequenceNumber = client->sequence;
-
- switch (stuff->control)
- {
- case DEVICE_RESOLUTION:
- if (!dev->valuator)
- {
- SendErrorToClient (client, IReqCode, X_GetDeviceControl, 0,
- BadMatch);
- return Success;
- }
- total_length = sizeof (xDeviceResolutionState) +
- (3 * sizeof(int) * dev->valuator->numAxes);
- break;
- default:
- SendErrorToClient (client, IReqCode, X_GetDeviceControl, 0,
- BadValue);
- return Success;
- }
-
- buf = (char *) Xalloc (total_length);
- if (!buf)
- {
- SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0,
- BadAlloc);
- return Success;
- }
- savbuf=buf;
-
- switch (stuff->control)
- {
- case DEVICE_RESOLUTION:
- CopySwapDeviceResolution(client, dev->valuator, buf,
- total_length);
- break;
- default:
- break;
- }
-
- rep.length = (total_length+3) >> 2;
- WriteReplyToClient(client, sizeof(xGetDeviceControlReply), &rep);
- WriteToClient(client, total_length, savbuf);
- Xfree (savbuf);
- return Success;
- }
-
- /***********************************************************************
- *
- * This procedure copies DeviceResolution data, swapping if necessary.
- *
- */
-
- void
- CopySwapDeviceResolution (client, v, buf, length)
- ClientPtr client;
- ValuatorClassPtr v;
- char *buf;
- int length;
- {
- register char n;
- AxisInfoPtr a;
- xDeviceResolutionState *r;
- int i, *iptr;
-
- r = (xDeviceResolutionState *) buf;
- r->control = DEVICE_RESOLUTION;
- r->length = length;
- r->num_valuators = v->numAxes;
- buf += sizeof (xDeviceResolutionState);
- iptr = (int *) buf;
- for (i=0,a=v->axes; i<v->numAxes; i++,a++)
- *iptr++ = a->resolution;
- for (i=0,a=v->axes; i<v->numAxes; i++,a++)
- *iptr++ = a->min_resolution;
- for (i=0,a=v->axes; i<v->numAxes; i++,a++)
- *iptr++ = a->max_resolution;
- if (client->swapped)
- {
- swaps (&r->control,n);
- swaps (&r->length,n);
- swapl (&r->num_valuators,n);
- iptr = (int *) buf;
- for (i=0; i < (3 * v->numAxes); i++,iptr++)
- {
- swapl (iptr,n);
- }
- }
- }
-
- /***********************************************************************
- *
- * This procedure writes the reply for the xGetDeviceControl function,
- * if the client and server have a different byte ordering.
- *
- */
-
- SRepXGetDeviceControl (client, size, rep)
- ClientPtr client;
- int size;
- xGetDeviceControlReply *rep;
- {
- register char n;
-
- swaps(&rep->sequenceNumber, n);
- swapl(&rep->length, n);
- WriteToClient(client, size, rep);
- }
-
-