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a09e091a JB |
1 | /************************************************************ |
2 | ||
3 | Copyright 1989, 1998 The Open Group | |
4 | ||
5 | Permission to use, copy, modify, distribute, and sell this software and its | |
6 | documentation for any purpose is hereby granted without fee, provided that | |
7 | the above copyright notice appear in all copies and that both that | |
8 | copyright notice and this permission notice appear in supporting | |
9 | documentation. | |
10 | ||
11 | The above copyright notice and this permission notice shall be included in | |
12 | all copies or substantial portions of the Software. | |
13 | ||
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN | |
18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
20 | ||
21 | Except as contained in this notice, the name of The Open Group shall not be | |
22 | used in advertising or otherwise to promote the sale, use or other dealings | |
23 | in this Software without prior written authorization from The Open Group. | |
24 | ||
25 | Copyright 1989 by Hewlett-Packard Company, Palo Alto, California. | |
26 | ||
27 | All Rights Reserved | |
28 | ||
29 | Permission to use, copy, modify, and distribute this software and its | |
30 | documentation for any purpose and without fee is hereby granted, | |
31 | provided that the above copyright notice appear in all copies and that | |
32 | both that copyright notice and this permission notice appear in | |
33 | supporting documentation, and that the name of Hewlett-Packard not be | |
34 | used in advertising or publicity pertaining to distribution of the | |
35 | software without specific, written prior permission. | |
36 | ||
37 | HEWLETT-PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING | |
38 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL | |
39 | HEWLETT-PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR | |
40 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, | |
41 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, | |
42 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS | |
43 | SOFTWARE. | |
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 | ||
71 | int | |
72 | SProcXGetDeviceMotionEvents(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 | ||
88 | int | |
89 | ProcXGetDeviceMotionEvents(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 | ||
165 | void | |
166 | SRepXGetDeviceMotionEvents(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 | } |