1/************************************************************
2
3Copyright 1989, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25Copyright 1989 by Hewlett-Packard Company, Palo Alto, California.
26
27			All Rights Reserved
28
29Permission to use, copy, modify, and distribute this software and its
30documentation for any purpose and without fee is hereby granted,
31provided that the above copyright notice appear in all copies and that
32both that copyright notice and this permission notice appear in
33supporting documentation, and that the name of Hewlett-Packard not be
34used in advertising or publicity pertaining to distribution of the
35software without specific, written prior permission.
36
37HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
38ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
39HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
40ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
41WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
42ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
43SOFTWARE.
44
45********************************************************/
46
47/***********************************************************************
48 *
49 * Request to get the motion history from an extension device.
50 *
51 */
52
53#ifdef HAVE_DIX_CONFIG_H
54#include <dix-config.h>
55#endif
56
57#include "inputstr.h"	/* DeviceIntPtr      */
58#include <X11/extensions/XI.h>
59#include <X11/extensions/XIproto.h>
60#include "exevents.h"
61#include "exglobals.h"
62
63#include "gtmotion.h"
64
65/***********************************************************************
66 *
67 * Swap the request if server and client have different byte ordering.
68 *
69 */
70
71int
72SProcXGetDeviceMotionEvents(ClientPtr client)
73{
74    char n;
75
76    REQUEST(xGetDeviceMotionEventsReq);
77    swaps(&stuff->length, n);
78    REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq);
79    swapl(&stuff->start, n);
80    swapl(&stuff->stop, n);
81    return (ProcXGetDeviceMotionEvents(client));
82}
83
84/****************************************************************************
85 *
86 * Get the motion history for an extension pointer devices.
87 *
88 */
89
90int
91ProcXGetDeviceMotionEvents(ClientPtr client)
92{
93    INT32 *coords = NULL, *bufptr;
94    xGetDeviceMotionEventsReply rep;
95    unsigned long i;
96    int rc, num_events, axes, size = 0;
97    unsigned long nEvents;
98    DeviceIntPtr dev;
99    TimeStamp start, stop;
100    int length = 0;
101    ValuatorClassPtr v;
102
103    REQUEST(xGetDeviceMotionEventsReq);
104
105    REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq);
106    rc = dixLookupDevice(&dev, stuff->deviceid, client, DixReadAccess);
107    if (rc != Success)
108	return rc;
109    v = dev->valuator;
110    if (v == NULL || v->numAxes == 0)
111	return BadMatch;
112    if (dev->valuator->motionHintWindow)
113	MaybeStopDeviceHint(dev, client);
114    axes = v->numAxes;
115    rep.repType = X_Reply;
116    rep.RepType = X_GetDeviceMotionEvents;
117    rep.sequenceNumber = client->sequence;
118    rep.nEvents = 0;
119    rep.axes = axes;
120    rep.mode = Absolute; /* XXX we don't do relative at the moment */
121    rep.length = 0;
122    start = ClientTimeToServerTime(stuff->start);
123    stop = ClientTimeToServerTime(stuff->stop);
124    if (CompareTimeStamps(start, stop) == LATER ||
125	CompareTimeStamps(start, currentTime) == LATER) {
126	WriteReplyToClient(client, sizeof(xGetDeviceMotionEventsReply), &rep);
127	return Success;
128    }
129    if (CompareTimeStamps(stop, currentTime) == LATER)
130	stop = currentTime;
131    num_events = v->numMotionEvents;
132    if (num_events) {
133        size = sizeof(Time) + (axes * sizeof(INT32));
134	rep.nEvents = GetMotionHistory(dev, (xTimecoord **) &coords,/* XXX */
135					start.milliseconds, stop.milliseconds,
136					(ScreenPtr) NULL, FALSE);
137    }
138    if (rep.nEvents > 0) {
139	length = bytes_to_int32(rep.nEvents * size);
140	rep.length = length;
141    }
142    nEvents = rep.nEvents;
143    WriteReplyToClient(client, sizeof(xGetDeviceMotionEventsReply), &rep);
144    if (nEvents) {
145	if (client->swapped) {
146	    char n;
147
148	    bufptr = coords;
149	    for (i = 0; i < nEvents * (axes + 1); i++) {
150		swapl(bufptr, n);
151		bufptr++;
152	    }
153	}
154	WriteToClient(client, length * 4, (char *)coords);
155    }
156    free(coords);
157    return Success;
158}
159
160/***********************************************************************
161 *
162 * This procedure writes the reply for the XGetDeviceMotionEvents function,
163 * if the client and server have a different byte ordering.
164 *
165 */
166
167void
168SRepXGetDeviceMotionEvents(ClientPtr client, int size,
169			   xGetDeviceMotionEventsReply * rep)
170{
171    char n;
172
173    swaps(&rep->sequenceNumber, n);
174    swapl(&rep->length, n);
175    swapl(&rep->nEvents, n);
176    WriteToClient(client, size, (char *)rep);
177}
178