/* Used by PutEventMultiTouch and PutEventMultiTouchString. */
HRESULT Mouse::putEventMultiTouch(LONG aCount,
LONG64 *paContacts,
ULONG aScanTime)
{
if (aCount >= 256)
{
return E_INVALIDARG;
}
DisplayMouseInterface *pDisplay = mParent->getDisplayMouseInterface();
ComAssertRet(pDisplay, E_FAIL);
HRESULT rc = S_OK;
uint64_t* pau64Contacts = NULL;
uint8_t cContacts = 0;
/* Deliver 0 contacts too, touch device may use this to reset the state. */
if (aCount > 0)
{
/* Create a copy with converted coords. */
pau64Contacts = (uint64_t *)RTMemTmpAlloc(aCount * sizeof(uint64_t));
if (pau64Contacts)
{
int32_t x1, y1, x2, y2;
/* Takes the display lock */
pDisplay->getFramebufferDimensions(&x1, &y1, &x2, &y2);
LONG i;
for (i = 0; i < aCount; i++)
{
uint32_t u32Lo = RT_LO_U32(paContacts[i]);
uint32_t u32Hi = RT_HI_U32(paContacts[i]);
int32_t x = (int16_t)u32Lo;
int32_t y = (int16_t)(u32Lo >> 16);
uint8_t contactId = RT_BYTE1(u32Hi);
bool fInContact = (RT_BYTE2(u32Hi) & 0x1) != 0;
bool fInRange = (RT_BYTE2(u32Hi) & 0x2) != 0;
LogRel3(("%s: [%d] %d,%d id %d, inContact %d, inRange %d\n",
__FUNCTION__, i, x, y, contactId, fInContact, fInRange));
/* Framebuffer dimensions are 0,0 width, height, that is x2,y2 are exclusive,
* while coords are inclusive.
*/
int32_t xAdj = x1 < x2 ? ((x - 1 - x1) * VMMDEV_MOUSE_RANGE)
/ (x2 - x1) : 0;
int32_t yAdj = y1 < y2 ? ((y - 1 - y1) * VMMDEV_MOUSE_RANGE)
/ (y2 - y1) : 0;
bool fValid = ( xAdj >= VMMDEV_MOUSE_RANGE_MIN
&& xAdj <= VMMDEV_MOUSE_RANGE_MAX
&& yAdj >= VMMDEV_MOUSE_RANGE_MIN
&& yAdj <= VMMDEV_MOUSE_RANGE_MAX);
if (fValid)
{
uint8_t fu8 = (fInContact? 0x01: 0x00)
| (fInRange? 0x02: 0x00);
pau64Contacts[cContacts] = RT_MAKE_U64_FROM_U16((uint16_t)xAdj,
(uint16_t)yAdj,
RT_MAKE_U16(contactId, fu8),
0);
cContacts++;
}
}
}
else
{
/* Used by PutEventMultiTouch and PutEventMultiTouchString. */
HRESULT Mouse::putEventMultiTouch(LONG aCount,
LONG64 *paContacts,
ULONG aScanTime)
{
if (aCount >= 256)
{
return E_INVALIDARG;
}
DisplayMouseInterface *pDisplay = mParent->getDisplayMouseInterface();
ComAssertRet(pDisplay, E_FAIL);
/* Touch events are mapped to the primary monitor, because the emulated USB
* touchscreen device is associated with one (normally the primary) screen in the guest.
*/
ULONG uScreenId = 0;
ULONG cWidth = 0;
ULONG cHeight = 0;
LONG xOrigin = 0;
LONG yOrigin = 0;
HRESULT rc = pDisplay->getScreenResolution(uScreenId, &cWidth, &cHeight, NULL, &xOrigin, &yOrigin);
ComAssertComRCRetRC(rc);
uint64_t* pau64Contacts = NULL;
uint8_t cContacts = 0;
/* Deliver 0 contacts too, touch device may use this to reset the state. */
if (aCount > 0)
{
/* Create a copy with converted coords. */
pau64Contacts = (uint64_t *)RTMemTmpAlloc(aCount * sizeof(uint64_t));
if (pau64Contacts)
{
int32_t x1 = xOrigin;
int32_t y1 = yOrigin;
int32_t x2 = x1 + cWidth;
int32_t y2 = y1 + cHeight;
LogRel3(("%s: screen [%d] %d,%d %d,%d\n",
__FUNCTION__, uScreenId, x1, y1, x2, y2));
LONG i;
for (i = 0; i < aCount; i++)
{
uint32_t u32Lo = RT_LO_U32(paContacts[i]);
uint32_t u32Hi = RT_HI_U32(paContacts[i]);
int32_t x = (int16_t)u32Lo;
int32_t y = (int16_t)(u32Lo >> 16);
uint8_t contactId = RT_BYTE1(u32Hi);
bool fInContact = (RT_BYTE2(u32Hi) & 0x1) != 0;
bool fInRange = (RT_BYTE2(u32Hi) & 0x2) != 0;
LogRel3(("%s: [%d] %d,%d id %d, inContact %d, inRange %d\n",
__FUNCTION__, i, x, y, contactId, fInContact, fInRange));
/* x1,y1 are inclusive and x2,y2 are exclusive,
* while x,y start from 1 and are inclusive.
*/
if (x <= x1 || x > x2 || y <= y1 || y > y2)
{
/* Out of range. Skip the contact. */
continue;
}
int32_t xAdj = x1 < x2? ((x - 1 - x1) * VMMDEV_MOUSE_RANGE) / (x2 - x1) : 0;
int32_t yAdj = y1 < y2? ((y - 1 - y1) * VMMDEV_MOUSE_RANGE) / (y2 - y1) : 0;
bool fValid = ( xAdj >= VMMDEV_MOUSE_RANGE_MIN
&& xAdj <= VMMDEV_MOUSE_RANGE_MAX
&& yAdj >= VMMDEV_MOUSE_RANGE_MIN
&& yAdj <= VMMDEV_MOUSE_RANGE_MAX);
if (fValid)
{
uint8_t fu8 = (fInContact? 0x01: 0x00)
| (fInRange? 0x02: 0x00);
pau64Contacts[cContacts] = RT_MAKE_U64_FROM_U16((uint16_t)xAdj,
(uint16_t)yAdj,
RT_MAKE_U16(contactId, fu8),
0);
cContacts++;
}
}
}
else
{
