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Diffstat (limited to 'nx-X11/lib/Xi/XGMotion.c')
| -rw-r--r-- | nx-X11/lib/Xi/XGMotion.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/nx-X11/lib/Xi/XGMotion.c b/nx-X11/lib/Xi/XGMotion.c new file mode 100644 index 000000000..4ce41bf99 --- /dev/null +++ b/nx-X11/lib/Xi/XGMotion.c @@ -0,0 +1,142 @@ +/* $Xorg: XGMotion.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/XGMotion.c,v 3.3 2001/12/14 19:55:12 dawes Exp $ */ + +/*********************************************************************** + * + * XGetDeviceMotionEvents - Get the motion history of an input device. + * + */ + +#include <X11/extensions/XI.h> +#include <X11/extensions/XIproto.h> +#include <X11/Xlibint.h> +#include <X11/extensions/XInput.h> +#include <X11/extensions/extutil.h> +#include "XIint.h" + +XDeviceTimeCoord +*XGetDeviceMotionEvents (dpy, dev, start, stop, nEvents, mode, axis_count) + register Display *dpy; + XDevice *dev; + Time start; + Time stop; + int *nEvents; + int *mode; + int *axis_count; + { + xGetDeviceMotionEventsReq *req; + xGetDeviceMotionEventsReply rep; + XDeviceTimeCoord *tc; + int *data, *bufp, *readp, *savp; + long size, size2; + int i, j; + XExtDisplayInfo *info = XInput_find_display (dpy); + + LockDisplay (dpy); + if (_XiCheckExtInit(dpy, XInput_Initial_Release) == -1) + return ((XDeviceTimeCoord *) NoSuchExtension); + + GetReq(GetDeviceMotionEvents,req); + req->reqType = info->codes->major_opcode; + req->ReqType = X_GetDeviceMotionEvents; + req->start = start; + req->stop = stop; + req->deviceid = dev->device_id; + + if (!_XReply (dpy, (xReply *)&rep, 0, xFalse)) { + UnlockDisplay(dpy); + SyncHandle(); + *nEvents = 0; + return (NULL); + } + + *mode = rep.mode; + *axis_count = rep.axes; + *nEvents = rep.nEvents; + if (!rep.nEvents) + { + UnlockDisplay(dpy); + SyncHandle(); + return (NULL); + } + size = rep.length << 2; + size2 = rep.nEvents * + (sizeof (XDeviceTimeCoord) + (rep.axes * sizeof (int))); + savp = readp = (int *) Xmalloc (size); + bufp = (int *) Xmalloc (size2); + if (!bufp || !savp) + { + *nEvents = 0; + _XEatData (dpy, (unsigned long) size); + UnlockDisplay(dpy); + SyncHandle(); + return (NULL); + } + _XRead (dpy, (char *) readp, size); + + tc = (XDeviceTimeCoord *) bufp; + data = (int *) (tc + rep.nEvents); + for (i=0; i<*nEvents; i++,tc++) + { + tc->time = *readp++; + tc->data = data; + for (j=0; j<*axis_count; j++) + *data++ = *readp++; + } + XFree ((char *)savp); + UnlockDisplay(dpy); + SyncHandle(); + return ((XDeviceTimeCoord *) bufp); + } + +void XFreeDeviceMotionEvents (events) + XDeviceTimeCoord *events; + { + XFree ((char *)events); + } |