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Diffstat (limited to 'Xi/gtmotion.c')
| -rw-r--r-- | Xi/gtmotion.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/Xi/gtmotion.c b/Xi/gtmotion.c new file mode 100644 index 000000000..65a4e0a19 --- /dev/null +++ b/Xi/gtmotion.c @@ -0,0 +1,206 @@ +/* $Xorg: gtmotion.c,v 1.4 2001/02/09 02:04:34 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. + +********************************************************/ + +/*********************************************************************** + * + * Request to get the motion history from an extension device. + * + */ + +#define NEED_EVENTS +#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(); + +/*********************************************************************** + * + * Swap the request if server and client have different byte ordering. + * + */ + +int +SProcXGetDeviceMotionEvents(client) +register ClientPtr client; + { + register char n; + + REQUEST(xGetDeviceMotionEventsReq); + swaps(&stuff->length, n); + REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq); + swapl(&stuff->start, n); + swapl(&stuff->stop, n); + return(ProcXGetDeviceMotionEvents(client)); + } + +/**************************************************************************** + * + * Get the motion history for an extension pointer devices. + * + */ + +int +ProcXGetDeviceMotionEvents(client) + ClientPtr client; +{ + INT32 *coords = NULL, *bufptr; + xGetDeviceMotionEventsReply rep; + int i, j, num_events, axes, size, tsize; + unsigned long nEvents; + DeviceIntPtr dev; + TimeStamp start, stop; + void XSwapTimeCoordWrite(); + int length = 0; + ValuatorClassPtr v; + + REQUEST(xGetDeviceMotionEventsReq); + + REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq); + dev = LookupDeviceIntRec (stuff->deviceid); + if (dev == NULL) + { + SendErrorToClient(client, IReqCode, X_GetDeviceMotionEvents, 0, + BadDevice); + return Success; + } + v = dev->valuator; + if (v==NULL || v->numAxes == 0) + { + SendErrorToClient(client, IReqCode, X_GetDeviceMotionEvents, 0, + BadMatch); + return Success; + } + if (dev->valuator->motionHintWindow) + MaybeStopDeviceHint(dev, client); + axes = v->numAxes; + rep.repType = X_Reply; + rep.RepType = X_GetDeviceMotionEvents; + rep.sequenceNumber = client->sequence; + rep.nEvents = 0; + rep.axes = axes; + rep.mode = v->mode & DeviceMode; + rep.length = 0; + start = ClientTimeToServerTime(stuff->start); + stop = ClientTimeToServerTime(stuff->stop); + if (CompareTimeStamps(start, stop) == LATER || + CompareTimeStamps(start, currentTime) == LATER) + { + WriteReplyToClient(client, sizeof(xGetDeviceMotionEventsReply), &rep); + return Success; + } + if (CompareTimeStamps(stop, currentTime) == LATER) + stop = currentTime; + num_events = v->numMotionEvents; + if (num_events) + { + size = sizeof(Time) + (axes * sizeof (INT32)); + tsize = num_events * size; + coords = (INT32 *) ALLOCATE_LOCAL(tsize); + if (!coords) + { + SendErrorToClient(client, IReqCode, X_GetDeviceMotionEvents, 0, + BadAlloc); + return Success; + } + rep.nEvents = (v->GetMotionProc) ( + dev, (xTimecoord *)coords, /* XXX */ + start.milliseconds, stop.milliseconds, (ScreenPtr)NULL); + } + if (rep.nEvents > 0) + { + length = (rep.nEvents * size +3) >> 2; + rep.length = length; + } + nEvents = rep.nEvents; + WriteReplyToClient(client, sizeof(xGetDeviceMotionEventsReply), &rep); + if (nEvents) + { + if (client->swapped) + { + register char n; + + bufptr = coords; + for (i=0; i<nEvents * (axes+1); i++) + { + swapl(bufptr, n); + bufptr++; + } + } + WriteToClient(client, length * 4, (char *)coords); + } + if (coords) + DEALLOCATE_LOCAL(coords); + return Success; +} + +/*********************************************************************** + * + * This procedure writes the reply for the XGetDeviceMotionEvents function, + * if the client and server have a different byte ordering. + * + */ + +SRepXGetDeviceMotionEvents (client, size, rep) + ClientPtr client; + int size; + xGetDeviceMotionEventsReply *rep; + { + register char n; + + swaps(&rep->sequenceNumber, n); + swapl(&rep->length, n); + swapl(&rep->nEvents, n); + WriteToClient(client, size, (char *)rep); + } |