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#include "sysemu/sysemu.h"
#include "qapi-types.h"
#include "ui/input.h"
struct QemuInputHandlerState {
DeviceState *dev;
QemuInputHandler *handler;
int id;
int events;
QTAILQ_ENTRY(QemuInputHandlerState) node;
};
static QTAILQ_HEAD(, QemuInputHandlerState) handlers =
QTAILQ_HEAD_INITIALIZER(handlers);
QemuInputHandlerState *qemu_input_handler_register(DeviceState *dev,
QemuInputHandler *handler)
{
QemuInputHandlerState *s = g_new0(QemuInputHandlerState, 1);
static int id = 1;
s->dev = dev;
s->handler = handler;
s->id = id++;
QTAILQ_INSERT_TAIL(&handlers, s, node);
return s;
}
void qemu_input_handler_activate(QemuInputHandlerState *s)
{
QTAILQ_REMOVE(&handlers, s, node);
QTAILQ_INSERT_HEAD(&handlers, s, node);
}
void qemu_input_handler_unregister(QemuInputHandlerState *s)
{
QTAILQ_REMOVE(&handlers, s, node);
g_free(s);
}
static QemuInputHandlerState*
qemu_input_find_handler(uint32_t mask)
{
QemuInputHandlerState *s;
QTAILQ_FOREACH(s, &handlers, node) {
if (mask & s->handler->mask) {
return s;
}
}
return NULL;
}
static void qemu_input_transform_abs_rotate(InputEvent *evt)
{
switch (graphic_rotate) {
case 90:
if (evt->abs->axis == INPUT_AXIS_X) {
evt->abs->axis = INPUT_AXIS_Y;
} else if (evt->abs->axis == INPUT_AXIS_Y) {
evt->abs->axis = INPUT_AXIS_X;
evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
}
break;
case 180:
evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
break;
case 270:
if (evt->abs->axis == INPUT_AXIS_X) {
evt->abs->axis = INPUT_AXIS_Y;
evt->abs->value = INPUT_EVENT_ABS_SIZE - 1 - evt->abs->value;
} else if (evt->abs->axis == INPUT_AXIS_Y) {
evt->abs->axis = INPUT_AXIS_X;
}
break;
}
}
void qemu_input_event_send(QemuConsole *src, InputEvent *evt)
{
QemuInputHandlerState *s;
if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
/* pre processing */
if (graphic_rotate && (evt->kind == INPUT_EVENT_KIND_ABS)) {
qemu_input_transform_abs_rotate(evt);
}
/* send event */
s = qemu_input_find_handler(1 << evt->kind);
s->handler->event(s->dev, src, evt);
s->events++;
}
void qemu_input_event_sync(void)
{
QemuInputHandlerState *s;
if (!runstate_is_running() && !runstate_check(RUN_STATE_SUSPENDED)) {
return;
}
QTAILQ_FOREACH(s, &handlers, node) {
if (!s->events) {
continue;
}
if (s->handler->sync) {
s->handler->sync(s->dev);
}
s->events = 0;
}
}
InputEvent *qemu_input_event_new_key(KeyValue *key, bool down)
{
InputEvent *evt = g_new0(InputEvent, 1);
evt->key = g_new0(InputKeyEvent, 1);
evt->kind = INPUT_EVENT_KIND_KEY;
evt->key->key = key;
evt->key->down = down;
return evt;
}
void qemu_input_event_send_key(QemuConsole *src, KeyValue *key, bool down)
{
InputEvent *evt;
evt = qemu_input_event_new_key(key, down);
qemu_input_event_send(src, evt);
qemu_input_event_sync();
qapi_free_InputEvent(evt);
}
void qemu_input_event_send_key_number(QemuConsole *src, int num, bool down)
{
KeyValue *key = g_new0(KeyValue, 1);
key->kind = KEY_VALUE_KIND_NUMBER;
key->number = num;
qemu_input_event_send_key(src, key, down);
}
void qemu_input_event_send_key_qcode(QemuConsole *src, QKeyCode q, bool down)
{
KeyValue *key = g_new0(KeyValue, 1);
key->kind = KEY_VALUE_KIND_QCODE;
key->qcode = q;
qemu_input_event_send_key(src, key, down);
}
InputEvent *qemu_input_event_new_btn(InputButton btn, bool down)
{
InputEvent *evt = g_new0(InputEvent, 1);
evt->btn = g_new0(InputBtnEvent, 1);
evt->kind = INPUT_EVENT_KIND_BTN;
evt->btn->button = btn;
evt->btn->down = down;
return evt;
}
void qemu_input_queue_btn(QemuConsole *src, InputButton btn, bool down)
{
InputEvent *evt;
evt = qemu_input_event_new_btn(btn, down);
qemu_input_event_send(src, evt);
qapi_free_InputEvent(evt);
}
void qemu_input_update_buttons(QemuConsole *src, uint32_t *button_map,
uint32_t button_old, uint32_t button_new)
{
InputButton btn;
uint32_t mask;
for (btn = 0; btn < INPUT_BUTTON_MAX; btn++) {
mask = button_map[btn];
if ((button_old & mask) == (button_new & mask)) {
continue;
}
qemu_input_queue_btn(src, btn, button_new & mask);
}
}
bool qemu_input_is_absolute(void)
{
QemuInputHandlerState *s;
s = qemu_input_find_handler(INPUT_EVENT_MASK_REL | INPUT_EVENT_MASK_ABS);
return (s != NULL) && (s->handler->mask & INPUT_EVENT_MASK_ABS);
}
int qemu_input_scale_axis(int value, int size_in, int size_out)
{
if (size_in < 2) {
return size_out / 2;
}
return (int64_t)value * (size_out - 1) / (size_in - 1);
}
InputEvent *qemu_input_event_new_move(InputEventKind kind,
InputAxis axis, int value)
{
InputEvent *evt = g_new0(InputEvent, 1);
InputMoveEvent *move = g_new0(InputMoveEvent, 1);
evt->kind = kind;
evt->data = move;
move->axis = axis;
move->value = value;
return evt;
}
void qemu_input_queue_rel(QemuConsole *src, InputAxis axis, int value)
{
InputEvent *evt;
evt = qemu_input_event_new_move(INPUT_EVENT_KIND_REL, axis, value);
qemu_input_event_send(src, evt);
qapi_free_InputEvent(evt);
}
void qemu_input_queue_abs(QemuConsole *src, InputAxis axis, int value, int size)
{
InputEvent *evt;
int scaled = qemu_input_scale_axis(value, size, INPUT_EVENT_ABS_SIZE);
evt = qemu_input_event_new_move(INPUT_EVENT_KIND_ABS, axis, scaled);
qemu_input_event_send(src, evt);
qapi_free_InputEvent(evt);
}
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