/* $Xorg: queryst.c,v 1.4 2001/02/09 02:04:34 xorgcvs Exp $ */ /* Copyright 1998, 1998 The Open Group Permission to use, copy, modify, distribute, and sell this software and its documentation for any purpose is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the name of The Open Group shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization from The Open Group. */ /* $XFree86: xc/programs/Xserver/Xi/queryst.c,v 3.4 2001/01/17 22:13:26 dawes Exp $ */ /*********************************************************************** * * Request to query the state of an extension input device. * */ #define NEED_EVENTS #define NEED_REPLIES #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <nx-X11/X.h> /* for inputstr.h */ #include <nx-X11/Xproto.h> /* Request macro */ #include "inputstr.h" /* DeviceIntPtr */ #include "windowstr.h" /* window structure */ #include <nx-X11/extensions/XI.h> #include <nx-X11/extensions/XIproto.h> #include "extnsionst.h" #include "extinit.h" /* LookupDeviceIntRec */ #include "exevents.h" #include "exglobals.h" #include "queryst.h" /*********************************************************************** * * This procedure allows a client to query the state of a device. * */ int SProcXQueryDeviceState(client) register ClientPtr client; { register char n; REQUEST(xQueryDeviceStateReq); swaps(&stuff->length, n); return(ProcXQueryDeviceState(client)); } /*********************************************************************** * * This procedure allows frozen events to be routed. * */ int ProcXQueryDeviceState(client) register ClientPtr client; { register char n; int i; int num_classes = 0; int total_length = 0; char *buf, *savbuf; KeyClassPtr k; xKeyState *tk; ButtonClassPtr b; xButtonState *tb; ValuatorClassPtr v; xValuatorState *tv; xQueryDeviceStateReply rep; DeviceIntPtr dev; int *values; REQUEST(xQueryDeviceStateReq); REQUEST_SIZE_MATCH(xQueryDeviceStateReq); rep.repType = X_Reply; rep.RepType = X_QueryDeviceState; rep.length = 0; rep.sequenceNumber = client->sequence; dev = LookupDeviceIntRec (stuff->deviceid); if (dev == NULL) { SendErrorToClient(client, IReqCode, X_QueryDeviceState, 0, BadDevice); return Success; } v = dev->valuator; if (v != NULL && v->motionHintWindow != NULL) MaybeStopDeviceHint(dev, client); k = dev->key; if (k != NULL) { total_length += sizeof (xKeyState); num_classes++; } b = dev->button; if (b != NULL) { total_length += sizeof (xButtonState); num_classes++; } if (v != NULL) { total_length += (sizeof(xValuatorState) + (v->numAxes * sizeof(int))); num_classes++; } buf = (char *) xalloc (total_length); if (!buf) { SendErrorToClient(client, IReqCode, X_QueryDeviceState, 0, BadAlloc); return Success; } savbuf = buf; if (k != NULL) { tk = (xKeyState *) buf; tk->class = KeyClass; tk->length = sizeof (xKeyState); tk->num_keys = k->curKeySyms.maxKeyCode - k->curKeySyms.minKeyCode + 1; for (i = 0; i<32; i++) tk->keys[i] = k->down[i]; buf += sizeof (xKeyState); } if (b != NULL) { tb = (xButtonState *) buf; tb->class = ButtonClass; tb->length = sizeof (xButtonState); tb->num_buttons = b->numButtons; for (i = 0; i<32; i++) tb->buttons[i] = b->down[i]; buf += sizeof (xButtonState); } if (v != NULL) { tv = (xValuatorState *) buf; tv->class = ValuatorClass; tv->length = sizeof (xValuatorState); tv->num_valuators = v->numAxes; tv->mode = v->mode; buf += sizeof(xValuatorState); for (i=0, values=v->axisVal; i<v->numAxes; i++) { *((int *) buf) = *values++; if (client->swapped) { swapl ((int *) buf, n);/* macro - braces needed */ } buf += sizeof(int); } } rep.num_classes = num_classes; rep.length = (total_length + 3) >> 2; WriteReplyToClient (client, sizeof(xQueryDeviceStateReply), &rep); if (total_length > 0) WriteToClient (client, total_length, savbuf); xfree (savbuf); return Success; } /*********************************************************************** * * This procedure writes the reply for the XQueryDeviceState function, * if the client and server have a different byte ordering. * */ void SRepXQueryDeviceState (client, size, rep) ClientPtr client; int size; xQueryDeviceStateReply *rep; { register char n; swaps(&rep->sequenceNumber, n); swapl(&rep->length, n); WriteToClient(client, size, (char *)rep); }