Hi Marc-André,
Hi Lucas
On Thu, Jun 8, 2023 at 9:49 PM Lucas Chollet <lucas.chol...@free.fr>
wrote:
No functional changes intended.
Signed-off-by: Lucas Chollet <lucas.chol...@free.fr>
---
hw/i386/vmmouse.c | 95
+++++++++++++++++++++++++++++++++++------------
1 file changed, 71 insertions(+), 24 deletions(-)
The patch diff isn't great, and there is a risk of regressions. I
wonder if input-legacy is really meant to be deprecated (after 10y it
is still around).
I had the same conclusion but as I'm not familiar with QEMU development,
I thought that you guys would quickly tell me if it's not worth.
Otherwise, the patch looks ok to me, except some question below:
diff --git a/hw/i386/vmmouse.c b/hw/i386/vmmouse.c
index a56c185f15..bdddbb64ac 100644
--- a/hw/i386/vmmouse.c
+++ b/hw/i386/vmmouse.c
@@ -24,7 +24,7 @@
#include "qemu/osdep.h"
#include "qapi/error.h"
-#include "ui/console.h"
+#include "ui/input.h"
#include "hw/i386/vmport.h"
#include "hw/input/i8042.h"
#include "hw/qdev-properties.h"
@@ -61,7 +61,10 @@ struct VMMouseState {
uint16_t nb_queue;
uint16_t status;
uint8_t absolute;
- QEMUPutMouseEntry *entry;
+ int32_t last_x;
+ int32_t last_y;
+ int32_t last_buttons;
+ QemuInputHandlerState *entry;
ISAKBDState *i8042;
};
@@ -91,33 +94,72 @@ static uint32_t
vmmouse_get_status(VMMouseState *s)
return (s->status << 16) | s->nb_queue;
}
-static void vmmouse_mouse_event(void *opaque, int x, int y, int
dz, int buttons_state)
+static void vmmouse_mouse_event(DeviceState *dev, QemuConsole *src,
+ InputEvent *evt)
{
- VMMouseState *s = opaque;
- int buttons = 0;
+ static const int bmap[INPUT_BUTTON__MAX] = {
+ [INPUT_BUTTON_LEFT] = 0x20,
+ [INPUT_BUTTON_MIDDLE] = 0x08,
+ [INPUT_BUTTON_RIGHT] = 0x10,
+ };
+
+ VMMouseState *s = VMMOUSE(dev);
+ InputMoveEvent *move;
+ InputBtnEvent *btn;
+
+ int32_t dz = 0;
if (s->nb_queue > (VMMOUSE_QUEUE_SIZE - 4))
return;
- DPRINTF("vmmouse_mouse_event(%d, %d, %d, %d)\n",
- x, y, dz, buttons_state);
+ switch (evt->type) {
+ case INPUT_EVENT_KIND_REL:
+ move = evt->u.rel.data;
+ if (move->axis == INPUT_AXIS_X) {
+ s->last_x += move->value;
+ } else if (move->axis == INPUT_AXIS_Y) {
+ s->last_y -= move->value;
+ }
+ break;
- if ((buttons_state & MOUSE_EVENT_LBUTTON))
- buttons |= 0x20;
- if ((buttons_state & MOUSE_EVENT_RBUTTON))
- buttons |= 0x10;
- if ((buttons_state & MOUSE_EVENT_MBUTTON))
- buttons |= 0x08;
+ case INPUT_EVENT_KIND_ABS:
+ move = evt->u.rel.data;
+ if (move->axis == INPUT_AXIS_X) {
+ s->last_x = move->value;
+ } else if (move->axis == INPUT_AXIS_Y) {
+ s->last_y = move->value;
+ }
+ break;
- if (s->absolute) {
- x <<= 1;
- y <<= 1;
+ case INPUT_EVENT_KIND_BTN:
+ btn = evt->u.btn.data;
+ if (btn->down) {
+ s->last_buttons |= bmap[btn->button];
+ if (btn->button == INPUT_BUTTON_WHEEL_UP) {
+ dz--;
+ } else if (btn->button == INPUT_BUTTON_WHEEL_DOWN) {
+ dz++;
+ }
+
+ } else {
+ s->last_buttons &= ~bmap[btn->button];
+ }
+ break;
+
+ default:
+ /* keep gcc happy */
+ break;
}
- s->queue[s->nb_queue++] = buttons;
- s->queue[s->nb_queue++] = x;
- s->queue[s->nb_queue++] = y;
+ s->queue[s->nb_queue++] = s->last_buttons;
+ s->queue[s->nb_queue++] = s->absolute ? s->last_x << 1 :
s->last_x;
+ s->queue[s->nb_queue++] = s->absolute ? s->last_y << 1 :
s->last_y;
s->queue[s->nb_queue++] = dz;
+}
+
+static void vmmouse_mouse_sync(DeviceState *dev)
+{
+ VMMouseState *s = VMMOUSE(dev);
/* need to still generate PS2 events to notify driver to
read from queue */
@@ -127,11 +169,18 @@ static void vmmouse_mouse_event(void
*opaque, int x, int y, int dz, int buttons_
static void vmmouse_remove_handler(VMMouseState *s)
{
if (s->entry) {
- qemu_remove_mouse_event_handler(s->entry);
+ qemu_input_handler_unregister(s->entry);
s->entry = NULL;
}
}
+static QemuInputHandler vm_mouse_handler = {
+ .name = "vmmouse",
+ .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
+ .event = vmmouse_mouse_event,
+ .sync = vmmouse_mouse_sync,
+};
+
static void vmmouse_update_handler(VMMouseState *s, int absolute)
{
if (s->status != 0) {
@@ -142,10 +191,8 @@ static void
vmmouse_update_handler(VMMouseState *s, int absolute)
vmmouse_remove_handler(s);
}
if (s->entry == NULL) {
- s->entry = qemu_add_mouse_event_handler(vmmouse_mouse_event,
- s, s->absolute,
- "vmmouse");
- qemu_activate_mouse_event_handler(s->entry);
+ s->entry = qemu_input_handler_register(DEVICE(s),
&vm_mouse_handler);
You don't take "absolute" state into account anymore, so
vm_mouse_handler.mask is always with MASK_ABS. I think this may be
problematic as mouse_mode won't change properly from abs/rel.
Ohh you're right, I wonder what's the best solution here. We can either
have both `QemuInputHandler vm_mouse_handler_rel` and `QemuInputHandler
vm_mouse_handler_abs` or make `vm_mouse_handler` accept both type of events.
Still, I'm a bit surprised because I tested to remove the call to put
the mouse in absolute mode in the guest kernel and it works.
+ qemu_input_handler_activate(s->entry);
}
}
--
2.39.2
--
Marc-André Lureau
