| 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 | } |