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-rw-r--r--xorg-server/Xi/queryst.c187
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+/*
+
+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.
+
+*/
+
+/***********************************************************************
+ *
+ * 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 "inputstr.h" /* DeviceIntPtr */
+#include "windowstr.h" /* window structure */
+#include <X11/extensions/XI.h>
+#include <X11/extensions/XIproto.h>
+#include "exevents.h"
+#include "exglobals.h"
+
+#include "queryst.h"
+
+/***********************************************************************
+ *
+ * This procedure allows a client to query the state of a device.
+ *
+ */
+
+int
+SProcXQueryDeviceState(ClientPtr client)
+{
+ char n;
+
+ REQUEST(xQueryDeviceStateReq);
+ swaps(&stuff->length, n);
+ return (ProcXQueryDeviceState(client));
+}
+
+/***********************************************************************
+ *
+ * This procedure allows frozen events to be routed.
+ *
+ */
+
+int
+ProcXQueryDeviceState(ClientPtr client)
+{
+ char n;
+ int rc, 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;
+
+ rc = dixLookupDevice(&dev, stuff->deviceid, client, DixReadAccess);
+ if (rc != Success)
+ return rc;
+
+ 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)
+ return BadAlloc;
+ 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(ClientPtr client, int size, xQueryDeviceStateReply * rep)
+{
+ char n;
+
+ swaps(&rep->sequenceNumber, n);
+ swapl(&rep->length, n);
+ WriteToClient(client, size, (char *)rep);
+}