xorg-server-1.4/Xi/getdctl.c

   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  *  Get Device control attributes for an extension device.
  50  *
  51  */
  52
  53 #define  NEED_EVENTS    /* for inputstr.h    */
  54 #define  NEED_REPLIES
  55 #ifdef HAVE_DIX_CONFIG_H
  56 #include <dix-config.h>
  57 #endif
  58
  59 #include <X11/X.h>      /* for inputstr.h    */
  60 #include <X11/Xproto.h> /* Request macro     */
  61 #include "inputstr.h"   /* DeviceIntPtr      */
  62 #include <X11/extensions/XI.h>
  63 #include <X11/extensions/XIproto.h>
  64 #include "extnsionst.h"
  65 #include "extinit.h"    /* LookupDeviceIntRec */
  66 #include "exglobals.h"
  67
  68 #include "getdctl.h"
  69
  70 /***********************************************************************
  71  *
  72  * This procedure gets the control attributes for an extension device,
  73  * for clients on machines with a different byte ordering than the server.
  74  *
  75  */
  76
  77 int
  78 SProcXGetDeviceControl(ClientPtr client)
  79 {
  80     char n;
  81
  82     REQUEST(xGetDeviceControlReq);
  83     swaps(&stuff->length, n);
  84     REQUEST_SIZE_MATCH(xGetDeviceControlReq);
  85     swaps(&stuff->control, n);
  86     return (ProcXGetDeviceControl(client));
  87 }
  88
  89 /***********************************************************************
  90  *
  91  * This procedure copies DeviceResolution data, swapping if necessary.
  92  *
  93  */
  94
  95 static void
  96 CopySwapDeviceResolution(ClientPtr client, ValuatorClassPtr v, char *buf,
  97                          int length)
  98 {
  99     char n;
 100     AxisInfoPtr a;
 101     xDeviceResolutionState *r;
 102     int i, *iptr;
 103
 104     r = (xDeviceResolutionState *) buf;
 105     r->control = DEVICE_RESOLUTION;
 106     r->length = length;
 107     r->num_valuators = v->numAxes;
 108     buf += sizeof(xDeviceResolutionState);
 109     iptr = (int *)buf;
 110     for (i = 0, a = v->axes; i < v->numAxes; i++, a++)
 111         *iptr++ = a->resolution;
 112     for (i = 0, a = v->axes; i < v->numAxes; i++, a++)
 113         *iptr++ = a->min_resolution;
 114     for (i = 0, a = v->axes; i < v->numAxes; i++, a++)
 115         *iptr++ = a->max_resolution;
 116     if (client->swapped) {
 117         swaps(&r->control, n);
 118         swaps(&r->length, n);
 119         swapl(&r->num_valuators, n);
 120         iptr = (int *)buf;
 121         for (i = 0; i < (3 * v->numAxes); i++, iptr++) {
 122             swapl(iptr, n);
 123         }
 124     }
 125 }
 126
 127 static void CopySwapDeviceAbsCalib (ClientPtr client, AbsoluteClassPtr dts,
 128                                 char *buf)
 129 {
 130     char n;
 131     xDeviceAbsCalibState *calib = (xDeviceAbsCalibState *) buf;
 132
 133     calib->control = DEVICE_ABS_CALIB;
 134     calib->length = sizeof(calib);
 135     calib->min_x = dts->min_x;
 136     calib->max_x = dts->max_x;
 137     calib->min_y = dts->min_y;
 138     calib->max_y = dts->max_y;
 139     calib->flip_x = dts->flip_x;
 140     calib->flip_y = dts->flip_y;
 141     calib->rotation = dts->rotation;
 142     calib->button_threshold = dts->button_threshold;
 143
 144     if (client->swapped) {
 145         swaps(&calib->control, n);
 146         swaps(&calib->length, n);
 147         swapl(&calib->min_x, n);
 148         swapl(&calib->max_x, n);
 149         swapl(&calib->min_y, n);
 150         swapl(&calib->max_y, n);
 151         swapl(&calib->flip_x, n);
 152         swapl(&calib->flip_y, n);
 153         swapl(&calib->rotation, n);
 154         swapl(&calib->button_threshold, n);
 155     }
 156 }
 157
 158 static void CopySwapDeviceAbsArea (ClientPtr client, AbsoluteClassPtr dts,
 159                                 char *buf)
 160 {
 161     char n;
 162     xDeviceAbsAreaState *area = (xDeviceAbsAreaState *) buf;
 163
 164     area->control = DEVICE_ABS_AREA;
 165     area->length = sizeof(area);
 166     area->offset_x = dts->offset_x;
 167     area->offset_y = dts->offset_y;
 168     area->width = dts->width;
 169     area->height = dts->height;
 170     area->screen = dts->screen;
 171     area->following = dts->following;
 172
 173     if (client->swapped) {
 174         swaps(&area->control, n);
 175         swaps(&area->length, n);
 176         swapl(&area->offset_x, n);
 177         swapl(&area->offset_y, n);
 178         swapl(&area->width, n);
 179         swapl(&area->height, n);
 180         swapl(&area->screen, n);
 181         swapl(&area->following, n);
 182     }
 183 }
 184
 185 static void CopySwapDeviceCore (ClientPtr client, DeviceIntPtr dev, char *buf)
 186 {
 187     char n;
 188     xDeviceCoreState *c = (xDeviceCoreState *) buf;
 189
 190     c->control = DEVICE_CORE;
 191     c->length = sizeof(c);
 192     c->status = dev->coreEvents;
 193     c->iscore = (dev == inputInfo.keyboard || dev == inputInfo.pointer);
 194
 195     if (client->swapped) {
 196         swaps(&c->control, n);
 197         swaps(&c->length, n);
 198         swaps(&c->status, n);
 199     }
 200 }
 201
 202 static void CopySwapDeviceEnable (ClientPtr client, DeviceIntPtr dev, char *buf)
 203 {
 204     char n;
 205     xDeviceEnableState *e = (xDeviceEnableState *) buf;
 206
 207     e->control = DEVICE_ENABLE;
 208     e->length = sizeof(e);
 209     e->enable = dev->enabled;
 210
 211     if (client->swapped) {
 212         swaps(&e->control, n);
 213         swaps(&e->length, n);
 214         swaps(&e->enable, n);
 215     }
 216 }
 217
 218 /***********************************************************************
 219  *
 220  * This procedure writes the reply for the xGetDeviceControl function,
 221  * if the client and server have a different byte ordering.
 222  *
 223  */
 224
 225 void
 226 SRepXGetDeviceControl(ClientPtr client, int size, xGetDeviceControlReply * rep)
 227 {
 228     char n;
 229
 230     swaps(&rep->sequenceNumber, n);
 231     swapl(&rep->length, n);
 232     WriteToClient(client, size, (char *)rep);
 233 }
 234
 235 /***********************************************************************
 236  *
 237  * Get the state of the specified device control.
 238  *
 239  */
 240
 241 int
 242 ProcXGetDeviceControl(ClientPtr client)
 243 {
 244     int total_length = 0;
 245     char *buf, *savbuf;
 246     DeviceIntPtr dev;
 247     xGetDeviceControlReply rep;
 248
 249     REQUEST(xGetDeviceControlReq);
 250     REQUEST_SIZE_MATCH(xGetDeviceControlReq);
 251
 252     dev = LookupDeviceIntRec(stuff->deviceid);
 253     if (dev == NULL) {
 254         SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0, BadDevice);
 255         return Success;
 256     }
 257
 258     rep.repType = X_Reply;
 259     rep.RepType = X_GetDeviceControl;
 260     rep.length = 0;
 261     rep.sequenceNumber = client->sequence;
 262
 263     switch (stuff->control) {
 264     case DEVICE_RESOLUTION:
 265         if (!dev->valuator) {
 266             SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0,
 267                               BadMatch);
 268             return Success;
 269         }
 270         total_length = sizeof(xDeviceResolutionState) +
 271             (3 * sizeof(int) * dev->valuator->numAxes);
 272         break;
 273     case DEVICE_ABS_CALIB:
 274         if (!dev->absolute) {
 275             SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0,
 276                               BadMatch);
 277             return Success;
 278         }
 279
 280         total_length = sizeof(xDeviceAbsCalibCtl);
 281         break;
 282     case DEVICE_ABS_AREA:
 283         if (!dev->absolute) {
 284             SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0,
 285                               BadMatch);
 286             return Success;
 287         }
 288
 289         total_length = sizeof(xDeviceAbsAreaCtl);
 290         break;
 291     case DEVICE_CORE:
 292         total_length = sizeof(xDeviceCoreCtl);
 293         break;
 294     case DEVICE_ENABLE:
 295         total_length = sizeof(xDeviceEnableCtl);
 296         break;
 297     default:
 298         SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0, BadValue);
 299         return Success;
 300     }
 301
 302     buf = (char *)xalloc(total_length);
 303     if (!buf) {
 304         SendErrorToClient(client, IReqCode, X_GetDeviceControl, 0, BadAlloc);
 305         return Success;
 306     }
 307     savbuf = buf;
 308
 309     switch (stuff->control) {
 310     case DEVICE_RESOLUTION:
 311         CopySwapDeviceResolution(client, dev->valuator, buf, total_length);
 312         break;
 313     case DEVICE_ABS_CALIB:
 314         CopySwapDeviceAbsCalib(client, dev->absolute, buf);
 315         break;
 316     case DEVICE_ABS_AREA:
 317         CopySwapDeviceAbsArea(client, dev->absolute, buf);
 318         break;
 319     case DEVICE_CORE:
 320         CopySwapDeviceCore(client, dev, buf);
 321         break;
 322     case DEVICE_ENABLE:
 323         CopySwapDeviceEnable(client, dev, buf);
 324         break;
 325     default:
 326         break;
 327     }
 328
 329     rep.length = (total_length + 3) >> 2;
 330     WriteReplyToClient(client, sizeof(xGetDeviceControlReply), &rep);
 331     WriteToClient(client, total_length, savbuf);
 332     xfree(savbuf);
 333     return Success;
 334 }