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Relative movement with a touchpad and other misc fixes for events

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This commit is contained in:
Matt Peterson 2011-08-01 13:46:29 -06:00 • committed by Jonas Ådahl
parent bdf74308e3
commit 0ced95682d
1 changed files with 69 additions and 18 deletions
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87
compositor/evdev.c
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@ -40,6 +40,7 @@ struct evdev_input_device {
int base_x, base_y;
int fd;
int min_x, max_x, min_y, max_y;
int is_touchpad, old_x_value, old_y_value, reset_x_value, reset_y_value;
};
static int
@ -55,6 +56,9 @@ evdev_input_device_data(int fd, uint32_t mask, void *data)
/* FIXME: Obviously we need to not hardcode these here, but
* instead get the values from the output it's associated with. */
const int screen_width = 1024, screen_height = 600;
/* FIXME: Make this configurable somehow. */
const int touchpad_speed = 700;
ec = (struct wlsc_compositor *)
device->master->base.input_device.compositor;
@ -94,17 +98,43 @@ evdev_input_device_data(int fd, uint32_t mask, void *data)
break;
case EV_ABS:
switch (e->code) {
case ABS_X:
absolute_event = device->tool;
x = (value - device->min_x) * screen_width /
(device->max_x - device->min_x);
break;
case ABS_Y:
absolute_event = device->tool;
y = (value - device->min_y) * screen_height /
(device->max_y - device->min_y);
break;
if (device->is_touchpad) {
switch (e->code) {
case ABS_X:
value -= device->min_x;
if (device->reset_x_value)
device->reset_x_value = 0;
else {
dx = (value - device->old_x_value) * touchpad_speed /
(device->max_x - device->min_x);
}
device->old_x_value = value;
break;
case ABS_Y:
value -= device->min_y;
if (device->reset_y_value)
device->reset_y_value = 0;
else {
dy = (value - device->old_y_value) * touchpad_speed /
/* maybe use x size here to have the same scale? */
(device->max_y - device->min_y);
}
device->old_y_value = value;
break;
}
} else {
switch (e->code) {
case ABS_X:
absolute_event = device->tool;
x = (value - device->min_x) * screen_width /
(device->max_x - device->min_x);
break;
case ABS_Y:
absolute_event = device->tool;
y = (value - device->min_y) * screen_height /
(device->max_y - device->min_y);
break;
}
}
break;
@ -123,6 +153,11 @@ evdev_input_device_data(int fd, uint32_t mask, void *data)
case BTN_TOOL_MOUSE:
case BTN_TOOL_LENS:
device->tool = value ? e->code : 0;
if (device->is_touchpad)
{
device->reset_x_value = 1;
device->reset_y_value = 1;
}
break;
case BTN_LEFT:
@ -154,7 +189,16 @@ evdev_input_device_data(int fd, uint32_t mask, void *data)
return 1;
}
#define TEST_BIT(b, i) (b[(i) / 32] & (1 << (i & 31)))
/* copied from udev/extras/input_id/input_id.c */
/* we must use this kernel-compatible implementation */
#define BITS_PER_LONG (sizeof(unsigned long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define TEST_BIT(array, bit) ((array[LONG(bit)] >> OFF(bit)) & 1)
/* end copied */
static struct evdev_input_device *
evdev_input_device_create(struct evdev_input *master,
@ -163,8 +207,9 @@ evdev_input_device_create(struct evdev_input *master,
struct evdev_input_device *device;
struct wl_event_loop *loop;
struct input_absinfo absinfo;
uint32_t ev_bits[EV_MAX];
uint32_t key_bits[KEY_MAX];
unsigned long ev_bits[NBITS(EV_MAX)];
unsigned long abs_bits[NBITS(ABS_MAX)];
unsigned long key_bits[NBITS(KEY_MAX)];
device = malloc(sizeof *device);
if (device == NULL)
@ -174,6 +219,7 @@ evdev_input_device_create(struct evdev_input *master,
device->new_x = 1;
device->new_y = 1;
device->master = master;
device->is_touchpad = 0;
device->fd = open(path, O_RDONLY);
if (device->fd < 0) {
@ -182,20 +228,25 @@ evdev_input_device_create(struct evdev_input *master,
return NULL;
}
ioctl(device->fd, EVIOCGBIT(0, EV_MAX), ev_bits);
ioctl(device->fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits);
if (TEST_BIT(ev_bits, EV_ABS)) {
ioctl(device->fd, EVIOCGBIT(EV_ABS, EV_MAX), key_bits);
if (TEST_BIT(key_bits, ABS_X)) {
ioctl(device->fd, EVIOCGBIT(EV_ABS, sizeof(abs_bits)), abs_bits);
if (TEST_BIT(abs_bits, ABS_X)) {
ioctl(device->fd, EVIOCGABS(ABS_X), &absinfo);
device->min_x = absinfo.minimum;
device->max_x = absinfo.maximum;
}
if (TEST_BIT(key_bits, ABS_Y)) {
if (TEST_BIT(abs_bits, ABS_Y)) {
ioctl(device->fd, EVIOCGABS(ABS_Y), &absinfo);
device->min_y = absinfo.minimum;
device->max_y = absinfo.maximum;
}
}
if (TEST_BIT(ev_bits, EV_KEY)) {
ioctl(device->fd, EVIOCGBIT(EV_KEY, sizeof(key_bits)), key_bits);
if (TEST_BIT(key_bits, BTN_TOOL_FINGER) && !TEST_BIT(key_bits, BTN_TOOL_PEN))
device->is_touchpad = 1;
}
loop = wl_display_get_event_loop(display);
device->source = wl_event_loop_add_fd(loop, device->fd,