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touchpad: store the time in the motion history

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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2017-06-21 11:16:27 +10:00
parent 0cfe8b0808
commit 10569680d9
2 changed files with 15 additions and 10 deletions
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20
src/evdev-mt-touchpad.c
View file

@ -36,7 +36,7 @@
#define THUMB_MOVE_TIMEOUT ms2us(300)
#define FAKE_FINGER_OVERFLOW (1 << 7)
static inline struct device_coords *
static inline struct tp_history_point*
tp_motion_history_offset(struct tp_touch *t, int offset)
{
int offset_index =
@ -90,7 +90,8 @@ tp_motion_history_push(struct tp_touch *t)
if (t->history.count < TOUCHPAD_HISTORY_LENGTH)
t->history.count++;
t->history.samples[motion_index] = t->point;
t->history.samples[motion_index].point = t->point;
t->history.samples[motion_index].time = t->time;
t->history.index = motion_index;
}
@ -293,10 +294,10 @@ tp_get_delta(struct tp_touch *t)
if (t->history.count <= 1)
return zero;
delta.x = tp_motion_history_offset(t, 0)->x -
tp_motion_history_offset(t, 1)->x;
delta.y = tp_motion_history_offset(t, 0)->y -
tp_motion_history_offset(t, 1)->y;
delta.x = tp_motion_history_offset(t, 0)->point.x -
tp_motion_history_offset(t, 1)->point.x;
delta.y = tp_motion_history_offset(t, 0)->point.y -
tp_motion_history_offset(t, 1)->point.y;
return tp_normalize_delta(t->tp, delta);
}
@ -1252,9 +1253,10 @@ tp_need_motion_history_reset(struct tp_dispatch *tp)
static bool
tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t)
{
struct device_coords *last, delta;
struct device_coords delta;
struct phys_coords mm;
const int JUMP_THRESHOLD_MM = 20;
struct tp_history_point *last;
/* We haven't seen pointer jumps on Wacom tablets yet, so exclude
* those.
@ -1268,8 +1270,8 @@ tp_detect_jumps(const struct tp_dispatch *tp, struct tp_touch *t)
/* called before tp_motion_history_push, so offset 0 is the most
* recent coordinate */
last = tp_motion_history_offset(t, 0);
delta.x = abs(t->point.x - last->x);
delta.y = abs(t->point.y - last->y);
delta.x = abs(t->point.x - last->point.x);
delta.y = abs(t->point.y - last->point.y);
mm = evdev_device_unit_delta_to_mm(tp->device, &delta);
return hypot(mm.x, mm.y) > JUMP_THRESHOLD_MM;

5
src/evdev-mt-touchpad.h
View file

@ -164,7 +164,10 @@ struct tp_touch {
} quirks;
struct {
struct device_coords samples[TOUCHPAD_HISTORY_LENGTH];
struct tp_history_point {
uint64_t time;
struct device_coords point;
} samples[TOUCHPAD_HISTORY_LENGTH];
unsigned int index;
unsigned int count;
} history;