int
ProcXIQueryPointer(ClientPtr client)
{
int rc;
xXIQueryPointerReply rep;
DeviceIntPtr pDev, kbd;
WindowPtr pWin, t;
SpritePtr pSprite;
XkbStatePtr state;
char *buttons = NULL;
int buttons_size = 0; /* size of buttons array */
REQUEST(xXIQueryPointerReq);
REQUEST_SIZE_MATCH(xXIQueryPointerReq);
rc = dixLookupDevice(&pDev, stuff->deviceid, client, DixReadAccess);
if (rc != Success)
{
client->errorValue = stuff->deviceid;
return rc;
}
if (pDev->valuator == NULL || IsKeyboardDevice(pDev) ||
(!IsMaster(pDev) && pDev->u.master)) /* no attached devices */
{
client->errorValue = stuff->deviceid;
return BadDevice;
}
rc = dixLookupWindow(&pWin, stuff->win, client, DixGetAttrAccess);
if (rc != Success)
{
SendErrorToClient(client, IReqCode, X_XIQueryPointer,
stuff->win, rc);
return Success;
}
if (pDev->valuator->motionHintWindow)
MaybeStopHint(pDev, client);
if (IsMaster(pDev))
kbd = GetPairedDevice(pDev);
else
kbd = (pDev->key) ? pDev : NULL;
pSprite = pDev->spriteInfo->sprite;
memset(&rep, 0, sizeof(rep));
rep.repType = X_Reply;
rep.RepType = X_XIQueryPointer;
rep.length = 6;
rep.sequenceNumber = client->sequence;
rep.root = (GetCurrentRootWindow(pDev))->drawable.id;
rep.root_x = FP1616(pSprite->hot.x, 0);
rep.root_y = FP1616(pSprite->hot.y, 0);
rep.child = None;
if (kbd)
{
state = &kbd->key->xkbInfo->prev_state;
rep.mods.base_mods = state->base_mods;
rep.mods.latched_mods = state->latched_mods;
rep.mods.locked_mods = state->locked_mods;
rep.group.base_group = state->base_group;
rep.group.latched_group = state->latched_group;
rep.group.locked_group = state->locked_group;
}
if (pDev->button)
{
int i, down;
rep.buttons_len = bytes_to_int32(bits_to_bytes(pDev->button->numButtons));
rep.length += rep.buttons_len;
buttons_size = rep.buttons_len * 4;
buttons = xcalloc(1, buttons_size);
if (!buttons)
return BadAlloc;
down = pDev->button->buttonsDown;
for (i = 0; i < pDev->button->numButtons && down; i++)
{
if (BitIsOn(pDev->button->down, i))
{
SetBit(buttons, i);
down--;
}
}
} else
rep.buttons_len = 0;
if (pSprite->hot.pScreen == pWin->drawable.pScreen)
{
rep.same_screen = xTrue;
rep.win_x = FP1616(pSprite->hot.x - pWin->drawable.x, 0);
rep.win_y = FP1616(pSprite->hot.y - pWin->drawable.y, 0);
for (t = pSprite->win; t; t = t->parent)
if (t->parent == pWin)
{
rep.child = t->drawable.id;
break;
}
} else
{
rep.same_screen = xFalse;
rep.win_x = 0;
rep.win_y = 0;
}
#ifdef PANORAMIX
if(!noPanoramiXExtension) {
rep.root_x += FP1616(panoramiXdataPtr[0].x, 0);
rep.root_y += FP1616(panoramiXdataPtr[0].y, 0);
if (stuff->win == rep.root)
{
rep.win_x += FP1616(panoramiXdataPtr[0].x, 0);
rep.win_y += FP1616(panoramiXdataPtr[0].y, 0);
}
}
#endif
WriteReplyToClient(client, sizeof(xXIQueryPointerReply), &rep);
if (buttons)
WriteToClient(client, buttons_size, buttons);
xfree(buttons);
return Success;
}
static void test_values_XIDeviceEvent(DeviceEvent *in, xXIDeviceEvent *out,
BOOL swap)
{
int buttons, valuators;
int i;
unsigned char *ptr;
uint32_t flagmask = 0;
FP3232 *values;
if (swap) {
swaps(&out->sequenceNumber);
swapl(&out->length);
swaps(&out->evtype);
swaps(&out->deviceid);
swaps(&out->sourceid);
swapl(&out->time);
swapl(&out->detail);
swapl(&out->root);
swapl(&out->event);
swapl(&out->child);
swapl(&out->root_x);
swapl(&out->root_y);
swapl(&out->event_x);
swapl(&out->event_y);
swaps(&out->buttons_len);
swaps(&out->valuators_len);
swapl(&out->mods.base_mods);
swapl(&out->mods.latched_mods);
swapl(&out->mods.locked_mods);
swapl(&out->mods.effective_mods);
swapl(&out->flags);
}
assert(out->extension == 0); /* IReqCode defaults to 0 */
assert(out->evtype == GetXI2Type((InternalEvent*)in));
assert(out->time == in->time);
assert(out->detail == in->detail.button);
assert(out->length >= 12);
assert(out->deviceid == in->deviceid);
assert(out->sourceid == in->sourceid);
switch (in->type) {
case ET_ButtonPress:
case ET_Motion:
case ET_ButtonRelease:
flagmask = XIPointerEmulated;
break;
case ET_KeyPress:
flagmask = XIKeyRepeat;
break;
default:
flagmask = 0;
break;
}
assert((out->flags & ~flagmask) == 0);
assert(out->root == in->root);
assert(out->event == None); /* set in FixUpEventFromWindow */
assert(out->child == None); /* set in FixUpEventFromWindow */
assert(out->mods.base_mods == in->mods.base);
assert(out->mods.latched_mods == in->mods.latched);
assert(out->mods.locked_mods == in->mods.locked);
assert(out->mods.effective_mods == in->mods.effective);
assert(out->group.base_group == in->group.base);
assert(out->group.latched_group == in->group.latched);
assert(out->group.locked_group == in->group.locked);
assert(out->group.effective_group == in->group.effective);
assert(out->event_x == 0); /* set in FixUpEventFromWindow */
assert(out->event_y == 0); /* set in FixUpEventFromWindow */
assert(out->root_x == FP1616(in->root_x, in->root_x_frac));
assert(out->root_y == FP1616(in->root_y, in->root_y_frac));
buttons = 0;
for (i = 0; i < bits_to_bytes(sizeof(in->buttons)); i++)
{
if (XIMaskIsSet(in->buttons, i))
{
assert(out->buttons_len >= bytes_to_int32(bits_to_bytes(i)));
buttons++;
}
}
ptr = (unsigned char*)&out[1];
for (i = 0; i < sizeof(in->buttons) * 8; i++)
assert(XIMaskIsSet(in->buttons, i) == XIMaskIsSet(ptr, i));
valuators = 0;
for (i = 0; i < MAX_VALUATORS; i++)
if (XIMaskIsSet(in->valuators.mask, i))
valuators++;
assert(out->valuators_len >= bytes_to_int32(bits_to_bytes(valuators)));
ptr += out->buttons_len * 4;
values = (FP3232*)(ptr + out->valuators_len * 4);
for (i = 0; i < sizeof(in->valuators.mask) * 8 ||
i < (out->valuators_len * 4) * 8; i++)
{
if (i >= MAX_VALUATORS)
assert(!XIMaskIsSet(in->valuators.mask, i) && !XIMaskIsSet(ptr, i));
else if (i > sizeof(in->valuators.mask) * 8)
assert(!XIMaskIsSet(ptr, i));
else if (i > out->valuators_len * 4 * 8)
assert(!XIMaskIsSet(in->valuators.mask, i));
else {
assert(XIMaskIsSet(in->valuators.mask, i) ==
XIMaskIsSet(ptr, i));
if (XIMaskIsSet(ptr, i))
{
FP3232 vi, vo;
vi = double_to_fp3232(in->valuators.data[i]);
vo = *values;
if (swap)
{
swapl(&vo.integral);
swapl(&vo.frac);
}
assert(vi.integral == vo.integral);
assert(vi.frac == vo.frac);
values++;
}
}
}
}
static int
eventToDeviceEvent(DeviceEvent *ev, xEvent **xi)
{
int len = sizeof(xXIDeviceEvent);
xXIDeviceEvent *xde;
int i, btlen, vallen;
char *ptr;
FP3232 *axisval;
/* FIXME: this should just send the buttons we have, not MAX_BUTTONs. Same
* with MAX_VALUATORS below */
/* btlen is in 4 byte units */
btlen = bytes_to_int32(bits_to_bytes(MAX_BUTTONS));
len += btlen * 4; /* buttonmask len */
vallen = count_bits(ev->valuators.mask, sizeof(ev->valuators.mask)/sizeof(ev->valuators.mask[0]));
len += vallen * 2 * sizeof(uint32_t); /* axisvalues */
vallen = bytes_to_int32(bits_to_bytes(MAX_VALUATORS));
len += vallen * 4; /* valuators mask */
*xi = calloc(1, len);
xde = (xXIDeviceEvent*)*xi;
xde->type = GenericEvent;
xde->extension = IReqCode;
xde->evtype = GetXI2Type(ev->type);
xde->time = ev->time;
xde->length = bytes_to_int32(len - sizeof(xEvent));
if (IsTouchEvent((InternalEvent*)ev))
xde->detail = ev->touchid;
else
xde->detail = ev->detail.button;
xde->root = ev->root;
xde->buttons_len = btlen;
xde->valuators_len = vallen;
xde->deviceid = ev->deviceid;
xde->sourceid = ev->sourceid;
xde->root_x = FP1616(ev->root_x, ev->root_x_frac);
xde->root_y = FP1616(ev->root_y, ev->root_y_frac);
if (ev->type == ET_TouchUpdate)
xde->flags |= (ev->flags & TOUCH_PENDING_END) ? XITouchPendingEnd : 0;
else
xde->flags = ev->flags;
if (IsTouchEvent((InternalEvent*)ev) &&
ev->flags & TOUCH_POINTER_EMULATED)
xde->flags |= XITouchEmulatingPointer;
if (ev->key_repeat)
xde->flags |= XIKeyRepeat;
xde->mods.base_mods = ev->mods.base;
xde->mods.latched_mods = ev->mods.latched;
xde->mods.locked_mods = ev->mods.locked;
xde->mods.effective_mods = ev->mods.effective;
xde->group.base_group = ev->group.base;
xde->group.latched_group = ev->group.latched;
xde->group.locked_group = ev->group.locked;
xde->group.effective_group = ev->group.effective;
ptr = (char*)&xde[1];
for (i = 0; i < sizeof(ev->buttons) * 8; i++)
{
if (BitIsOn(ev->buttons, i))
SetBit(ptr, i);
}
ptr += xde->buttons_len * 4;
axisval = (FP3232*)(ptr + xde->valuators_len * 4);
for (i = 0; i < sizeof(ev->valuators.mask) * 8; i++)
{
if (BitIsOn(ev->valuators.mask, i))
{
SetBit(ptr, i);
*axisval = double_to_fp3232(ev->valuators.data[i]);
axisval++;
}
}
return Success;
}
