qemu/ui/spice-input.c
Gerd Hoffmann 869564a9c0 spice: add tablet support
Add support for the spice tablet interface.  The tablet interface will
be registered (and then used by the spice client) as soon as a absolute
pointing device is available and used by the guest, i.e. you'll have to
configure your guest with '-usbdevice tablet'.
2010-09-21 18:36:43 +02:00

218 lines
6.4 KiB
C

/*
* Copyright (C) 2010 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 or
* (at your option) version 3 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <spice.h>
#include <spice/enums.h>
#include "qemu-common.h"
#include "qemu-spice.h"
#include "console.h"
/* keyboard bits */
typedef struct QemuSpiceKbd {
SpiceKbdInstance sin;
int ledstate;
} QemuSpiceKbd;
static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag);
static uint8_t kbd_get_leds(SpiceKbdInstance *sin);
static void kbd_leds(void *opaque, int l);
static const SpiceKbdInterface kbd_interface = {
.base.type = SPICE_INTERFACE_KEYBOARD,
.base.description = "qemu keyboard",
.base.major_version = SPICE_INTERFACE_KEYBOARD_MAJOR,
.base.minor_version = SPICE_INTERFACE_KEYBOARD_MINOR,
.push_scan_freg = kbd_push_key,
.get_leds = kbd_get_leds,
};
static void kbd_push_key(SpiceKbdInstance *sin, uint8_t frag)
{
kbd_put_keycode(frag);
}
static uint8_t kbd_get_leds(SpiceKbdInstance *sin)
{
QemuSpiceKbd *kbd = container_of(sin, QemuSpiceKbd, sin);
return kbd->ledstate;
}
static void kbd_leds(void *opaque, int ledstate)
{
QemuSpiceKbd *kbd = opaque;
kbd->ledstate = 0;
if (ledstate & QEMU_SCROLL_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_SCROLL_LOCK;
}
if (ledstate & QEMU_NUM_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_NUM_LOCK;
}
if (ledstate & QEMU_CAPS_LOCK_LED) {
kbd->ledstate |= SPICE_KEYBOARD_MODIFIER_FLAGS_CAPS_LOCK;
}
spice_server_kbd_leds(&kbd->sin, ledstate);
}
/* mouse bits */
typedef struct QemuSpicePointer {
SpiceMouseInstance mouse;
SpiceTabletInstance tablet;
int width, height, x, y;
Notifier mouse_mode;
bool absolute;
} QemuSpicePointer;
static int map_buttons(int spice_buttons)
{
int qemu_buttons = 0;
/*
* Note: SPICE_MOUSE_BUTTON_* specifies the wire protocol but this
* isn't what we get passed in via interface callbacks for the
* middle and right button ...
*/
if (spice_buttons & SPICE_MOUSE_BUTTON_MASK_LEFT) {
qemu_buttons |= MOUSE_EVENT_LBUTTON;
}
if (spice_buttons & 0x04 /* SPICE_MOUSE_BUTTON_MASK_MIDDLE */) {
qemu_buttons |= MOUSE_EVENT_MBUTTON;
}
if (spice_buttons & 0x02 /* SPICE_MOUSE_BUTTON_MASK_RIGHT */) {
qemu_buttons |= MOUSE_EVENT_RBUTTON;
}
return qemu_buttons;
}
static void mouse_motion(SpiceMouseInstance *sin, int dx, int dy, int dz,
uint32_t buttons_state)
{
kbd_mouse_event(dx, dy, dz, map_buttons(buttons_state));
}
static void mouse_buttons(SpiceMouseInstance *sin, uint32_t buttons_state)
{
kbd_mouse_event(0, 0, 0, map_buttons(buttons_state));
}
static const SpiceMouseInterface mouse_interface = {
.base.type = SPICE_INTERFACE_MOUSE,
.base.description = "mouse",
.base.major_version = SPICE_INTERFACE_MOUSE_MAJOR,
.base.minor_version = SPICE_INTERFACE_MOUSE_MINOR,
.motion = mouse_motion,
.buttons = mouse_buttons,
};
static void tablet_set_logical_size(SpiceTabletInstance* sin, int width, int height)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
if (height < 16) {
height = 16;
}
if (width < 16) {
width = 16;
}
pointer->width = width;
pointer->height = height;
}
static void tablet_position(SpiceTabletInstance* sin, int x, int y,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
pointer->x = x * 0x7FFF / (pointer->width - 1);
pointer->y = y * 0x7FFF / (pointer->height - 1);
kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
}
static void tablet_wheel(SpiceTabletInstance* sin, int wheel,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
kbd_mouse_event(pointer->x, pointer->y, wheel, map_buttons(buttons_state));
}
static void tablet_buttons(SpiceTabletInstance *sin,
uint32_t buttons_state)
{
QemuSpicePointer *pointer = container_of(sin, QemuSpicePointer, tablet);
kbd_mouse_event(pointer->x, pointer->y, 0, map_buttons(buttons_state));
}
static const SpiceTabletInterface tablet_interface = {
.base.type = SPICE_INTERFACE_TABLET,
.base.description = "tablet",
.base.major_version = SPICE_INTERFACE_TABLET_MAJOR,
.base.minor_version = SPICE_INTERFACE_TABLET_MINOR,
.set_logical_size = tablet_set_logical_size,
.position = tablet_position,
.wheel = tablet_wheel,
.buttons = tablet_buttons,
};
static void mouse_mode_notifier(Notifier *notifier)
{
QemuSpicePointer *pointer = container_of(notifier, QemuSpicePointer, mouse_mode);
bool is_absolute = kbd_mouse_is_absolute();
if (pointer->absolute == is_absolute) {
return;
}
if (is_absolute) {
qemu_spice_add_interface(&pointer->tablet.base);
} else {
spice_server_remove_interface(&pointer->tablet.base);
}
pointer->absolute = is_absolute;
}
void qemu_spice_input_init(void)
{
QemuSpiceKbd *kbd;
QemuSpicePointer *pointer;
kbd = qemu_mallocz(sizeof(*kbd));
kbd->sin.base.sif = &kbd_interface.base;
qemu_spice_add_interface(&kbd->sin.base);
qemu_add_led_event_handler(kbd_leds, kbd);
pointer = qemu_mallocz(sizeof(*pointer));
pointer->mouse.base.sif = &mouse_interface.base;
pointer->tablet.base.sif = &tablet_interface.base;
qemu_spice_add_interface(&pointer->mouse.base);
pointer->absolute = false;
pointer->mouse_mode.notify = mouse_mode_notifier;
qemu_add_mouse_mode_change_notifier(&pointer->mouse_mode);
mouse_mode_notifier(&pointer->mouse_mode);
}