diff options
Diffstat (limited to 'src/XQueryDv.c')
| -rw-r--r-- | src/XQueryDv.c | 212 |
1 files changed, 104 insertions, 108 deletions
diff --git a/src/XQueryDv.c b/src/XQueryDv.c index 1450c15..94d0f9a 100644 --- a/src/XQueryDv.c +++ b/src/XQueryDv.c @@ -60,139 +60,135 @@ SOFTWARE. #include <X11/extensions/extutil.h> #include "XIint.h" -XDeviceState -*XQueryDeviceState (dpy, dev) - register Display *dpy; - XDevice *dev; - { - int i,j; - int rlen; - int size = 0; - xQueryDeviceStateReq *req; - xQueryDeviceStateReply rep; - XDeviceState *state = NULL; - XInputClass *any, *Any; - char *data; - XExtDisplayInfo *info = XInput_find_display (dpy); - - LockDisplay (dpy); +XDeviceState * XQueryDeviceState(dpy, dev) + register Display * + dpy; + XDevice * + dev; +{ + int i, j; + int rlen; + int size = 0; + xQueryDeviceStateReq *req; + xQueryDeviceStateReply rep; + XDeviceState *state = NULL; + XInputClass *any, *Any; + char *data; + XExtDisplayInfo *info = XInput_find_display(dpy); + + LockDisplay(dpy); if (_XiCheckExtInit(dpy, XInput_Initial_Release) == -1) return ((XDeviceState *) NoSuchExtension); - GetReq(QueryDeviceState,req); + GetReq(QueryDeviceState, req); req->reqType = info->codes->major_opcode; req->ReqType = X_QueryDeviceState; req->deviceid = dev->device_id; - if (! _XReply (dpy, (xReply *) &rep, 0, xFalse)) - { + if (!_XReply(dpy, (xReply *) & rep, 0, xFalse)) { UnlockDisplay(dpy); SyncHandle(); return (XDeviceState *) NULL; - } + } rlen = rep.length << 2; - if (rlen > 0) - { - data = Xmalloc (rlen); - if (!data) - { - _XEatData (dpy, (unsigned long) rlen); - UnlockDisplay(dpy); - SyncHandle(); - return ((XDeviceState *) NULL); - } - _XRead (dpy, data, rlen); - - for (i=0, any=(XInputClass *) data; i<(int)rep.num_classes; i++) + if (rlen > 0) { + data = Xmalloc(rlen); + if (!data) { + _XEatData(dpy, (unsigned long)rlen); + UnlockDisplay(dpy); + SyncHandle(); + return ((XDeviceState *) NULL); + } + _XRead(dpy, data, rlen); + + for (i = 0, any = (XInputClass *) data; i < (int)rep.num_classes; i++) { + switch (any->class) { + case KeyClass: + size += sizeof(XKeyState); + break; + case ButtonClass: + size += sizeof(XButtonState); + break; + case ValuatorClass: { - switch (any->class) - { - case KeyClass: - size += sizeof (XKeyState); - break; - case ButtonClass: - size += sizeof (XButtonState); - break; - case ValuatorClass: - { - xValuatorState *v = (xValuatorState *) any; - size += (sizeof (XValuatorState) + - (v->num_valuators * sizeof(int))); - } - break; - } - any = (XInputClass *) ((char *) any + any->length); + xValuatorState *v = (xValuatorState *) any; + size += (sizeof(XValuatorState) + + (v->num_valuators * sizeof(int))); } - state = (XDeviceState *) Xmalloc (size + sizeof(XDeviceState)); - if (!state) - { - UnlockDisplay(dpy); - SyncHandle(); - return ((XDeviceState *) NULL); + break; } + any = (XInputClass *) ((char *)any + any->length); + } + state = (XDeviceState *) Xmalloc(size + sizeof(XDeviceState)); + if (!state) { + UnlockDisplay(dpy); + SyncHandle(); + return ((XDeviceState *) NULL); + } state->device_id = dev->device_id; state->num_classes = rep.num_classes; state->data = (XInputClass *) (state + 1); - Any = state->data; - for (i=0, any=(XInputClass *) data; i<(int)rep.num_classes; i++) + Any = state->data; + for (i = 0, any = (XInputClass *) data; i < (int)rep.num_classes; i++) { + switch (any->class) { + case KeyClass: { - switch (any->class) - { - case KeyClass: - { - xKeyState *k = (xKeyState *) any; - XKeyState *K = (XKeyState *) Any; - K->class = k->class; - K->length = sizeof (XKeyState); - K->num_keys = k->num_keys; - memcpy ((char *) &K->keys[0], (char *) &k->keys[0], 32); - Any = (XInputClass *) (K+1); - } - break; - case ButtonClass: - { - xButtonState *b = (xButtonState *) any; - XButtonState *B = (XButtonState *) Any; - B->class = b->class; - B->length = sizeof (XButtonState); - B->num_buttons = b->num_buttons; - memcpy ((char *) &B->buttons[0], (char *) &b->buttons[0], - 32); - Any = (XInputClass *) (B+1); - } - break; - case ValuatorClass: - { - xValuatorState *v = (xValuatorState *) any; - XValuatorState *V = (XValuatorState *) Any; - CARD32 *valuators = (CARD32 *) (v+1); - V->class = v->class; - V->length = sizeof (XValuatorState); - V->num_valuators = v->num_valuators; - V->mode = v->mode; - Any = (XInputClass *) (V+1); - V->valuators = (int *) Any; - for (j=0; j<(int)V->num_valuators; j++) - *(V->valuators + j) = *valuators++; - Any = (XInputClass *)((char *) Any + - V->num_valuators * sizeof (int)); - } - break; - } - any = (XInputClass *) ((char *) any + any->length); + xKeyState *k = (xKeyState *) any; + XKeyState *K = (XKeyState *) Any; + + K->class = k->class; + K->length = sizeof(XKeyState); + K->num_keys = k->num_keys; + memcpy((char *)&K->keys[0], (char *)&k->keys[0], 32); + Any = (XInputClass *) (K + 1); } - Xfree(data); + break; + case ButtonClass: + { + xButtonState *b = (xButtonState *) any; + XButtonState *B = (XButtonState *) Any; + + B->class = b->class; + B->length = sizeof(XButtonState); + B->num_buttons = b->num_buttons; + memcpy((char *)&B->buttons[0], (char *)&b->buttons[0], 32); + Any = (XInputClass *) (B + 1); + } + break; + case ValuatorClass: + { + xValuatorState *v = (xValuatorState *) any; + XValuatorState *V = (XValuatorState *) Any; + CARD32 *valuators = (CARD32 *) (v + 1); + + V->class = v->class; + V->length = sizeof(XValuatorState); + V->num_valuators = v->num_valuators; + V->mode = v->mode; + Any = (XInputClass *) (V + 1); + V->valuators = (int *)Any; + for (j = 0; j < (int)V->num_valuators; j++) + *(V->valuators + j) = *valuators++; + Any = (XInputClass *) ((char *)Any + + V->num_valuators * sizeof(int)); + } + break; + } + any = (XInputClass *) ((char *)any + any->length); } + Xfree(data); + } UnlockDisplay(dpy); SyncHandle(); return (state); - } +} -void XFreeDeviceState (list) +void +XFreeDeviceState(list) XDeviceState *list; - { - XFree ((char *)list); - } +{ + XFree((char *)list); +} |