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 _X_COLD
72SProcXGetDeviceMotionEvents(ClientPtr client)
73{
74    REQUEST(xGetDeviceMotionEventsReq);
75    swaps(&stuff->length);
76    REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq);
77    swapl(&stuff->start);
78    swapl(&stuff->stop);
79    return (ProcXGetDeviceMotionEvents(client));
80}
81
82/****************************************************************************
83 *
84 * Get the motion history for an extension pointer devices.
85 *
86 */
87
88int
89ProcXGetDeviceMotionEvents(ClientPtr client)
90{
91    INT32 *coords = NULL, *bufptr;
92    xGetDeviceMotionEventsReply rep;
93    unsigned long i;
94    int rc, num_events, axes, size = 0;
95    unsigned long nEvents;
96    DeviceIntPtr dev;
97    TimeStamp start, stop;
98    int length = 0;
99    ValuatorClassPtr v;
100
101    REQUEST(xGetDeviceMotionEventsReq);
102
103    REQUEST_SIZE_MATCH(xGetDeviceMotionEventsReq);
104    rc = dixLookupDevice(&dev, stuff->deviceid, client, DixReadAccess);
105    if (rc != Success)
106        return rc;
107    v = dev->valuator;
108    if (v == NULL || v->numAxes == 0)
109        return BadMatch;
110    if (dev->valuator->motionHintWindow)
111        MaybeStopDeviceHint(dev, client);
112    axes = v->numAxes;
113    rep = (xGetDeviceMotionEventsReply) {
114        .repType = X_Reply,
115        .RepType = X_GetDeviceMotionEvents,
116        .sequenceNumber = client->sequence,
117        .length = 0,
118        .nEvents = 0,
119        .axes = axes,
120        .mode = Absolute        /* XXX we don't do relative at the moment */
121    };
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            bufptr = coords;
147            for (i = 0; i < nEvents * (axes + 1); i++) {
148                swapl(bufptr);
149                bufptr++;
150            }
151        }
152        WriteToClient(client, length * 4, coords);
153    }
154    free(coords);
155    return Success;
156}
157
158/***********************************************************************
159 *
160 * This procedure writes the reply for the XGetDeviceMotionEvents function,
161 * if the client and server have a different byte ordering.
162 *
163 */
164
165void _X_COLD
166SRepXGetDeviceMotionEvents(ClientPtr client, int size,
167                           xGetDeviceMotionEventsReply * rep)
168{
169    swaps(&rep->sequenceNumber);
170    swapl(&rep->length);
171    swapl(&rep->nEvents);
172    WriteToClient(client, size, rep);
173}
174