/**
* Send an absolute mouse event to the VM. This requires either VirtualBox-
* specific drivers installed in the guest or absolute pointing device
* emulation.
* @note the VMMDev capability change is so that the guest knows we are sending
* dummy events over the PS/2 device to signal the arrival of new
* absolute pointer data, and not pointer real movement data
* @note all calls out of this object are made with no locks held!
*
* @returns COM status code
* @param x X position (pixel), starting from 1
* @param y Y position (pixel), starting from 1
* @param dz Z movement
* @param fButtons The mouse button state
*/
STDMETHODIMP Mouse::PutMouseEventAbsolute(LONG x, LONG y, LONG dz, LONG dw,
LONG fButtons)
{
AutoCaller autoCaller(this);
if (FAILED(autoCaller.rc())) return autoCaller.rc();
LogRel3(("%s: x=%d, y=%d, dz=%d, dw=%d, fButtons=0x%x\n",
__PRETTY_FUNCTION__, x, y, dz, dw, fButtons));
int32_t xAdj, yAdj;
uint32_t fButtonsAdj;
bool fValid;
/** @todo the front end should do this conversion to avoid races */
/** @note Or maybe not... races are pretty inherent in everything done in
* this object and not really bad as far as I can see. */
HRESULT rc = convertDisplayRes(x, y, &xAdj, &yAdj, &fValid);
if (FAILED(rc)) return rc;
fButtonsAdj = mouseButtonsToPDM(fButtons);
/* If we are doing old-style (IRQ-less) absolute reporting to the VMM
* device then make sure the guest is aware of it, so that it knows to
* ignore relative movement on the PS/2 device. */
updateVMMDevMouseCaps(VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE, 0);
if (fValid)
{
rc = reportAbsEvent(xAdj, yAdj, dz, dw, fButtonsAdj,
RT_BOOL( mfVMMDevGuestCaps
& VMMDEV_MOUSE_NEW_PROTOCOL));
fireMouseEvent(true, x, y, dz, dw, 0, fButtons);
}
return rc;
}
/** Check what sort of reporting can be done using the devices currently
* enabled (including the VMM device) and notify the guest and the front-end.
*/
void Mouse::sendMouseCapsNotifications(void)
{
bool fAbsDev, fRelDev, fCanAbs, fNeedsHostCursor;
{
AutoReadLock aLock(this COMMA_LOCKVAL_SRC_POS);
getDeviceCaps(&fAbsDev, &fRelDev);
fCanAbs = supportsAbs();
fNeedsHostCursor = guestNeedsHostCursor();
}
if (fAbsDev)
updateVMMDevMouseCaps(VMMDEV_MOUSE_HOST_HAS_ABS_DEV, 0);
else
updateVMMDevMouseCaps(0, VMMDEV_MOUSE_HOST_HAS_ABS_DEV);
/** @todo this call takes the Console lock in order to update the cached
* callback data atomically. However I can't see any sign that the cached
* data is ever used again. */
mParent->onMouseCapabilityChange(fCanAbs, fRelDev, fNeedsHostCursor);
}
/**
* Send a relative mouse event to the guest.
* @note the VMMDev capability change is so that the guest knows we are sending
* real events over the PS/2 device and not dummy events to signal the
* arrival of new absolute pointer data
*
* @returns COM status code
* @param dx X movement
* @param dy Y movement
* @param dz Z movement
* @param buttonState The mouse button state
*/
STDMETHODIMP Mouse::PutMouseEvent(LONG dx, LONG dy, LONG dz, LONG dw, LONG buttonState)
{
HRESULT rc;
uint32_t fButtons;
AutoCaller autoCaller(this);
if (FAILED(autoCaller.rc())) return autoCaller.rc();
LogRel3(("%s: dx=%d, dy=%d, dz=%d, dw=%d\n", __PRETTY_FUNCTION__,
dx, dy, dz, dw));
fButtons = mouseButtonsToPDM(buttonState);
/* Make sure that the guest knows that we are sending real movement
* events to the PS/2 device and not just dummy wake-up ones. */
updateVMMDevMouseCaps(0, VMMDEV_MOUSE_HOST_WANTS_ABSOLUTE);
rc = reportRelEventToMouseDev(dx, dy, dz, dw, fButtons);
fireMouseEvent(false, dx, dy, dz, dw, buttonState);
return rc;
}