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vmmouse: use explicit code 

It's weird to shift x & y without obvious reason. Let's make this more
explicit and future-proof.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This commit is contained in:
Marc-André Lureau 2023-08-01 13:35:43 +04:00
parent 885f380f7b
commit 67a6fcb2b0
1 changed files with 11 additions and 2 deletions
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13
hw/i386/vmmouse.c
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@ -52,6 +52,11 @@
#define VMMOUSE_RIGHT_BUTTON 0x10
#define VMMOUSE_MIDDLE_BUTTON 0x08
#define VMMOUSE_MIN_X 0
#define VMMOUSE_MIN_Y 0
#define VMMOUSE_MAX_X 0xFFFF
#define VMMOUSE_MAX_Y 0xFFFF
#define TYPE_VMMOUSE "vmmouse"
OBJECT_DECLARE_SIMPLE_TYPE(VMMouseState, VMMOUSE)
@ -112,8 +117,12 @@ static void vmmouse_mouse_event(void *opaque, int x, int y, int dz, int buttons_
buttons |= VMMOUSE_MIDDLE_BUTTON;
if (s->absolute) {
x <<= 1;
y <<= 1;
x = qemu_input_scale_axis(x,
INPUT_EVENT_ABS_MIN, INPUT_EVENT_ABS_MAX,
VMMOUSE_MIN_X, VMMOUSE_MAX_X);
y = qemu_input_scale_axis(y,
INPUT_EVENT_ABS_MIN, INPUT_EVENT_ABS_MAX,
VMMOUSE_MIN_Y, VMMOUSE_MAX_Y);
} else{
/* add for guest vmmouse driver to judge this is a relative packet. */
buttons |= VMMOUSE_RELATIVE_PACKET;