static int usb_mouse_poll(USBMouseState *s, uint8_t *buf, int len)
{
int dx, dy, dz, b, l;
if (!s->mouse_grabbed) {
qemu_add_mouse_event_handler(usb_mouse_event, s, 0);
s->mouse_grabbed = 1;
}
dx = int_clamp(s->dx, -128, 127);
dy = int_clamp(s->dy, -128, 127);
dz = int_clamp(s->dz, -128, 127);
s->dx -= dx;
s->dy -= dy;
s->dz -= dz;
b = 0;
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
b |= 0x01;
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
b |= 0x02;
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
b |= 0x04;
buf[0] = b;
buf[1] = dx;
buf[2] = dy;
l = 3;
if (len >= 4) {
buf[3] = dz;
l = 4;
}
return l;
}
static int usb_tablet_poll(USBHIDState *hs, uint8_t *buf, int len)
{
int dz, b, l;
USBMouseState *s = &hs->ptr;
if (!s->mouse_grabbed) {
s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, hs,
1, "QEMU USB Tablet");
s->mouse_grabbed = 1;
}
dz = int_clamp(s->dz, -128, 127);
s->dz -= dz;
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
b = 0;
if (s->buttons_state & MOUSE_EVENT_LBUTTON)
b |= 0x01;
if (s->buttons_state & MOUSE_EVENT_RBUTTON)
b |= 0x02;
if (s->buttons_state & MOUSE_EVENT_MBUTTON)
b |= 0x04;
buf[0] = b;
buf[1] = s->x & 0xff;
buf[2] = s->x >> 8;
buf[3] = s->y & 0xff;
buf[4] = s->y >> 8;
buf[5] = dz;
l = 6;
return l;
}
int hid_pointer_poll(HIDState *hs, uint8_t *buf, int len)
{
int dx, dy, dz, b, l;
int index;
HIDPointerEvent *e;
hs->idle_pending = false;
hid_pointer_activate(hs);
/* When the buffer is empty, return the last event. Relative
movements will all be zero. */
index = (hs->n ? hs->head : hs->head - 1);
e = &hs->ptr.queue[index & QUEUE_MASK];
if (hs->kind == HID_MOUSE) {
dx = int_clamp(e->xdx, -127, 127);
dy = int_clamp(e->ydy, -127, 127);
e->xdx -= dx;
e->ydy -= dy;
} else {
dx = e->xdx;
dy = e->ydy;
}
dz = int_clamp(e->dz, -127, 127);
e->dz -= dz;
b = 0;
if (e->buttons_state & MOUSE_EVENT_LBUTTON) {
b |= 0x01;
}
if (e->buttons_state & MOUSE_EVENT_RBUTTON) {
b |= 0x02;
}
if (e->buttons_state & MOUSE_EVENT_MBUTTON) {
b |= 0x04;
}
if (hs->n &&
!e->dz &&
(hs->kind == HID_TABLET || (!e->xdx && !e->ydy))) {
/* that deals with this event */
QUEUE_INCR(hs->head);
hs->n--;
}
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
l = 0;
switch (hs->kind) {
case HID_MOUSE:
if (len > l) {
buf[l++] = b;
}
if (len > l) {
buf[l++] = dx;
}
if (len > l) {
buf[l++] = dy;
}
if (len > l) {
buf[l++] = dz;
}
break;
case HID_TABLET:
if (len > l) {
buf[l++] = b;
}
if (len > l) {
buf[l++] = dx & 0xff;
}
if (len > l) {
buf[l++] = dx >> 8;
}
if (len > l) {
buf[l++] = dy & 0xff;
}
if (len > l) {
buf[l++] = dy >> 8;
}
static int usb_pointer_poll(USBHIDState *hs, uint8_t *buf, int len)
{
int dx, dy, dz, b, l;
USBPointerState *s = &hs->ptr;
USBPointerEvent *e;
if (usb_suppress_report(hs, s->head == s->tail))
return USB_RET_NAK;
if (!s->mouse_grabbed) {
s->eh_entry = qemu_add_mouse_event_handler(usb_pointer_event, hs,
!s->xyrel, "QEMU USB Pointer");
s->mouse_grabbed = 1;
}
if (s->head == s->tail)
/* use the last report */
s->head = (s->head - 1) & QUEUEINDEXMASK;
e = &s->queue[s->head];
dz = int_clamp(e->dz, -127, 127);
if (s->xyrel) {
dx = int_clamp(e->xdx, -127, 127);
dy = int_clamp(e->ydy, -127, 127);
e->xdx -= dx;
e->ydy -= dy;
} else {
dx = e->xdx;
dy = e->ydy;
}
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
if (!(e->dz ||
(s->xyrel && (e->xdx || e->ydy)))) {
/* that deals with this event */
QUEUE_INCR(s->head);
}
b = 0;
if (e->buttons_state & MOUSE_EVENT_LBUTTON)
b |= 0x01;
if (e->buttons_state & MOUSE_EVENT_RBUTTON)
b |= 0x02;
if (e->buttons_state & MOUSE_EVENT_MBUTTON)
b |= 0x04;
switch (hs->kind) {
case USB_MOUSE:
l = 0;
if (len > l)
buf[l ++] = b;
if (len > l)
buf[l ++] = dx;
if (len > l)
buf[l ++] = dy;
if (len > l)
buf[l ++] = dz;
break;
case USB_TABLET:
/* Appears we have to invert the wheel direction */
dz = 0 - dz;
buf[0] = b;
buf[1] = dx & 0xff;
buf[2] = dx >> 8;
buf[3] = dy & 0xff;
buf[4] = dy >> 8;
buf[5] = dz;
l = 6;
break;
default:
abort();
}
return l;
}