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tablet: fix handling of AttrPressureRange quirk

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tablet_get_quirked_pressure_thresholds() is wrong:
the pressure thresholds for tip press and tip release are swapped around.
This seems to be a regression introduced in commit 4bc27543e9.

This prevents AttrPressureRange from working as intended for tablets,
and causes weird things to happen if it's set.
(For example, when pressure is in the range between
the intended release threshold and the intended press threshold,
the "pressed" status flip-flops between 0 and 1 every frame).

Fix that.

(cherry picked from commit b58d5a165b)

Part-of: <https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/1434>
This commit is contained in:
Michał Chojnowski 2026-02-02 08:06:39 +01:00 • committed by Peter Hutterer
parent 421fe9457e
commit edc25c071a
1 changed files with 2 additions and 2 deletions
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4
src/evdev-tablet.c
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@ -1142,8 +1142,8 @@ tablet_get_quirked_pressure_thresholds(struct tablet_dispatch *tablet, int *hi,
_unref_(quirks) *q = libinput_device_get_quirks(&device->base);
if (q && quirks_get_range(q, QUIRK_ATTR_PRESSURE_RANGE, &r)) {
if (r.lower < r.upper) {
*hi = r.lower;
*lo = r.upper;
*lo = r.lower;
*hi = r.upper;
status = true;
} else {
evdev_log_info(device,