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tablet: always set the changed axis bits if the coordinates differ

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Because we're doing axis smoothing, we may get a nonzero delta between events
even when the real axis hasn't updated. Make sure the bit is set in this case.

One part of #128

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This commit is contained in:
Peter Hutterer 2018-09-05 15:57:02 +10:00
parent bf9c8e06ef
commit f8fec24c2f
2 changed files with 79 additions and 0 deletions
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5
src/evdev-tablet.c
View file

@ -444,6 +444,11 @@ tablet_tool_process_delta(struct tablet_dispatch *tablet,
delta.y = axes->point.y - tablet->last_smooth_point.y;
}
if (axes->point.x != tablet->last_smooth_point.x)
set_bit(tablet->changed_axes, LIBINPUT_TABLET_TOOL_AXIS_X);
if (axes->point.y != tablet->last_smooth_point.y)
set_bit(tablet->changed_axes, LIBINPUT_TABLET_TOOL_AXIS_Y);
tablet->last_smooth_point = axes->point;
accel.x = 1.0 * delta.x;

74
test/test-tablet.c
View file

@ -630,6 +630,78 @@ START_TEST(tip_up_motion)
}
END_TEST
START_TEST(tip_up_motion_one_axis)
{
struct litest_device *dev = litest_current_device();
struct libinput *li = dev->libinput;
struct libinput_event *event;
struct libinput_event_tablet_tool *tablet_event;
struct axis_replacement axes[] = {
{ ABS_DISTANCE, 0 },
{ ABS_PRESSURE, 0 },
{ -1, -1 }
};
unsigned int axis = _i; /* ranged test */
double x, y, last_x, last_y;
litest_tablet_proximity_in(dev, 10, 10, axes);
litest_drain_events(li);
/* enough events to get the history going */
litest_axis_set_value(axes, ABS_PRESSURE, 20);
for (int i = 1; i < 10; i++) {
litest_push_event_frame(dev);
litest_tablet_motion(dev, 10 + i, 10 + i, axes);
litest_event(dev, EV_KEY, BTN_TOUCH, 1);
litest_event(dev, EV_SYN, SYN_REPORT, 0);
litest_pop_event_frame(dev);
}
litest_drain_events(li);
litest_tablet_motion(dev, 20, 20, axes);
libinput_dispatch(li);
event = libinput_get_event(li);
tablet_event = litest_is_tablet_event(event,
LIBINPUT_EVENT_TABLET_TOOL_AXIS);
last_x = libinput_event_tablet_tool_get_x(tablet_event);
last_y = libinput_event_tablet_tool_get_y(tablet_event);
libinput_event_destroy(event);
/* move x on tip up, make sure x/y changed */
litest_axis_set_value(axes, ABS_PRESSURE, 0);
litest_push_event_frame(dev);
switch (axis) {
case ABS_X:
litest_tablet_motion(dev, 40, 20, axes);
break;
case ABS_Y:
litest_tablet_motion(dev, 20, 40, axes);
break;
default:
abort();
}
litest_event(dev, EV_KEY, BTN_TOUCH, 0);
litest_pop_event_frame(dev);
libinput_dispatch(li);
event = libinput_get_event(li);
tablet_event = litest_is_tablet_event(event,
LIBINPUT_EVENT_TABLET_TOOL_TIP);
ck_assert_int_eq(libinput_event_tablet_tool_get_tip_state(tablet_event),
LIBINPUT_TABLET_TOOL_TIP_UP);
ck_assert(libinput_event_tablet_tool_x_has_changed(tablet_event));
ck_assert(libinput_event_tablet_tool_y_has_changed(tablet_event));
x = libinput_event_tablet_tool_get_x(tablet_event);
y = libinput_event_tablet_tool_get_y(tablet_event);
ck_assert_double_ne(last_x, x);
ck_assert_double_ne(last_y, y);
libinput_event_destroy(event);
litest_assert_empty_queue(li);
}
END_TEST
START_TEST(tip_state_proximity)
{
struct litest_device *dev = litest_current_device();
@ -4683,6 +4755,7 @@ END_TEST
TEST_COLLECTION(tablet)
{
struct range with_timeout = { 0, 2 };
struct range xyaxes = { ABS_X, ABS_Y + 1 };
litest_add("tablet:tool", tool_ref, LITEST_TABLET | LITEST_TOOL_SERIAL, LITEST_ANY);
litest_add("tablet:tool", tool_user_data, LITEST_TABLET | LITEST_TOOL_SERIAL, LITEST_ANY);
@ -4720,6 +4793,7 @@ TEST_COLLECTION(tablet)
litest_add("tablet:tip", tip_up_btn_change, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:tip", tip_down_motion, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:tip", tip_up_motion, LITEST_TABLET, LITEST_ANY);
litest_add_ranged("tablet:tip", tip_up_motion_one_axis, LITEST_TABLET, LITEST_ANY, &xyaxes);
litest_add("tablet:tip", tip_state_proximity, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:tip", tip_state_axis, LITEST_TABLET, LITEST_ANY);
litest_add("tablet:tip", tip_state_button, LITEST_TABLET, LITEST_ANY);