Peter Hutterer ef48c07a96 touchpad: reset the motion history on significant negative pressure changes ... Resetting the motion history has the side-effect of swallowing movements, we don't calculate deltas until we have 4 motion events. During a finger release, we're likely to get a large pressure change between two events, resetting the motion history prevents the cursor from jumping on release. The value of 7 found by trial-and-error, tested on the T440 and T450 hardware. The absolute value is highly variable but recordings show that the pressure changes only by 1 or 2 units during normal interaction. Higher pressure changes are during finger position changes but since those should not cause a jump anyway, we tend to win there too. Currently only enabled for negative pressure changes, let's see how we go with that. This is enabled for all touchpads now, but the value may need device-specific thresholds in the future. https://bugs.freedesktop.org/show_bug.cgi?id=94379 Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net> Reviewed-by: Hans de Goede <hdegoede@redhat.com>		2016-04-04 12:11:30 +10:00
..
50-litest.conf	test: Prefix litest created device names with litest	2014-06-25 11:11:45 +10:00
build-cxx.cc	test: Add include from C++ build test	2014-03-29 00:51:44 +01:00
build-pedantic.c	Fix a couple of coding style issues	2015-05-01 12:09:57 +10:00
device.c	evdev: disable the mode button on the Cyborg RAT 5	2016-02-01 08:37:41 +10:00
gestures.c	test: check for BTN_TOOL_QUADTAP in the 4fg btntool tests	2016-02-04 13:50:49 +10:00
keyboard.c	Change to micro seconds for measuring time internally	2015-07-28 17:42:32 +08:00
litest-device-alps-dualpoint.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-alps-semi-mt.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-anker-mouse-kbd.c	evdev: only reject devices with missing MT x/y if they're MT devices	2016-01-12 09:07:36 +10:00
litest-device-apple-internal-keyboard.c	touchpad: fix DWT pairing for Macbook Pro 2015	2016-01-11 10:11:32 +10:00
litest-device-asus-rog-gladius.c	evdev: init pointer acceleration for any device with pointer cap and rel x/y	2015-10-30 11:18:18 +10:00
litest-device-atmel-hover.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-bcm5974.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-cyborg-rat-5.c	evdev: disable the mode button on the Cyborg RAT 5	2016-02-01 08:37:41 +10:00
litest-device-elantech-touchpad.c	test: add an Elantech touchpad device	2015-07-13 09:11:28 +10:00
litest-device-generic-singletouch.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-huion-pentablet.c	test: fix a bunch of tablet tests for pressure threshold introduction	2016-01-11 15:17:46 +10:00
litest-device-keyboard-razer-blackwidow.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-keyboard.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-logitech-trackball.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-magic-trackpad.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-mouse-low-dpi.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-mouse-roccat.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-mouse-wheel-click-angle.c	test: add a device to check MOUSE_WHEEL_CLICK_ANGLE handling	2015-11-09 16:06:26 +10:00
litest-device-mouse.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-ms-surface-cover.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-nexus4-touch-screen.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-protocol-a-touch-screen.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-qemu-usb-tablet.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-synaptics-hover.c	test: fix the udev rule for the synaptics hover device	2016-02-04 16:26:29 +10:00
litest-device-synaptics-i2c.c	touchpad: if we have a serio keyboard, override any previous dwt pairing	2016-02-05 07:43:25 +10:00
litest-device-synaptics-st.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-synaptics-t440.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-synaptics-x1-carbon-3rd.c	test: apply the new t450 model flag to our X1 3rd test device	2016-03-29 11:59:41 +10:00
litest-device-synaptics.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-touch-screen.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-trackpoint.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-vmware-virtual-usb-mouse.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-wacom-bamboo-tablet.c	test: add pressure axes to proximity in for the bamboo and the cintiq	2015-12-15 08:08:16 +10:00
litest-device-wacom-cintiq-24hd.c	test: add Wacom Cintiq 24HD Pen	2016-02-11 16:02:22 +10:00
litest-device-wacom-cintiq-tablet.c	tablet: add tilt tests	2015-12-21 09:47:31 +10:00
litest-device-wacom-intuos-finger.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-wacom-intuos-tablet.c	tablet: add tilt tests	2015-12-21 09:47:31 +10:00
litest-device-wacom-isdv4-tablet.c	test: fix a bunch of tablet tests for pressure threshold introduction	2016-01-11 15:17:46 +10:00
litest-device-wacom-touch.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-waltop-tablet.c	test: fix a bunch of tablet tests for pressure threshold introduction	2016-01-11 15:17:46 +10:00
litest-device-wheel-only.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-xen-virtual-pointer.c	test: prefix all test device files with litest-device	2015-07-13 09:11:26 +10:00
litest-device-yubikey.c	touchpad: if we have a serio keyboard, override any previous dwt pairing	2016-02-05 07:43:25 +10:00
litest-int.h	Merge branch 'master' into tablet-support	2015-08-26 14:24:16 +10:00
litest-selftest.c	test: fix compiler warning	2016-01-20 12:56:35 +10:00
litest.c	touchpad: reset the motion history on significant negative pressure changes	2016-04-04 12:11:30 +10:00
litest.h	touchpad: reset the motion history on significant negative pressure changes	2016-04-04 12:11:30 +10:00
log.c	COPYING: Update boilerplate from MIT X11 to MIT Expat license	2015-06-16 14:36:04 +10:00
Makefile.am	test: add Wacom Cintiq 24HD Pen	2016-02-11 16:02:22 +10:00
misc.c	test: add a simple test to guard against wrong library version changes	2016-02-10 15:03:25 +10:00
path.c	test: add two path tests for invalid devices	2016-03-03 09:19:36 +10:00
pointer.c	tablet: enable the calibration matrix for internal tablets	2015-12-09 09:01:03 +10:00
symbols-leak-test.in	add simple symbols leak checker	2015-02-13 10:20:44 +10:00
tablet.c	tablet: use the tilt resolution if we have it	2016-02-23 14:42:35 +10:00
touch.c	Change to micro seconds for measuring time internally	2015-07-28 17:42:32 +08:00
touchpad-buttons.c	test: move the helper functions to the litest.h file	2015-07-31 09:14:21 +10:00
touchpad-tap.c	touchpad: add a config option to disable tap-and-drag	2016-01-27 10:03:28 +10:00
touchpad.c	touchpad: reset the motion history on significant negative pressure changes	2016-04-04 12:11:30 +10:00
trackpoint.c	COPYING: Update boilerplate from MIT X11 to MIT Expat license	2015-06-16 14:36:04 +10:00
udev.c	Assert that the interface is actually filled in.	2016-03-07 13:05:26 +10:00
valgrind.suppressions	Merge branch 'master' into tablet-support	2015-05-22 14:21:21 +10:00