diff options
Diffstat (limited to 'xorg-server/Xi/gtmotion.c')
| -rw-r--r-- | xorg-server/Xi/gtmotion.c | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/xorg-server/Xi/gtmotion.c b/xorg-server/Xi/gtmotion.c new file mode 100644 index 000000000..4f4d7cb77 --- /dev/null +++ b/xorg-server/Xi/gtmotion.c @@ -0,0 +1,184 @@ +/************************************************************ + +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 +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "inputstr.h" /* DeviceIntPtr */ +#include <X11/extensions/XI.h> +#include <X11/extensions/XIproto.h> +#include "exevents.h" +#include "exglobals.h" + +#include "gtmotion.h" + +/*********************************************************************** + * + * Swap the request if server and client have different byte ordering. + * + */ + +int +SProcXGetDeviceMotionEvents(ClientPtr client) +{ + 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(ClientPtr client) +{ + INT32 *coords = NULL, *bufptr; + xGetDeviceMotionEventsReply rep; + unsigned long i; + int rc, num_events, axes, size = 0, tsize; + unsigned long nEvents; + DeviceIntPtr dev; + TimeStamp start, stop; + int length = 0; + ValuatorClassPtr v; + + REQUEST(xGetDeviceMotionEventsReq); + + REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq); + rc = dixLookupDevice(&dev, stuff->deviceid, client, DixReadAccess); + if (rc != Success) + return rc; + v = dev->valuator; + if (v == NULL || v->numAxes == 0) + return BadMatch; + 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 *) xalloc(tsize); + if (!coords) + return BadAlloc; + 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) { + char n; + + bufptr = coords; + for (i = 0; i < nEvents * (axes + 1); i++) { + swapl(bufptr, n); + bufptr++; + } + } + WriteToClient(client, length * 4, (char *)coords); + } + if (coords) + xfree(coords); + return Success; +} + +/*********************************************************************** + * + * This procedure writes the reply for the XGetDeviceMotionEvents function, + * if the client and server have a different byte ordering. + * + */ + +void +SRepXGetDeviceMotionEvents(ClientPtr client, int size, + xGetDeviceMotionEventsReply * rep) +{ + char n; + + swaps(&rep->sequenceNumber, n); + swapl(&rep->length, n); + swapl(&rep->nEvents, n); + WriteToClient(client, size, (char *)rep); +} |