whot pushed to libinput (master). "Reduce palm detection threshold to 70mm (#1209753) (..more)"
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Fri Apr 17 00:34:43 UTC 2015
>From f1e2a7fd36f7d7fd80621be44c072a22c2e786b4 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer at who-t.net>
Date: Thu, 16 Apr 2015 18:10:34 +1000
Subject: Reduce palm detection threshold to 70mm (#1209753)
- Don't allow taps in the top part of the palm zone (#1209753)
diff --git a/0001-touchpad-don-t-allow-taps-in-the-top-half-of-the-pal.patch b/0001-touchpad-don-t-allow-taps-in-the-top-half-of-the-pal.patch
new file mode 100644
index 0000000..f165425
--- /dev/null
+++ b/0001-touchpad-don-t-allow-taps-in-the-top-half-of-the-pal.patch
@@ -0,0 +1,456 @@
+From c03ce1cab3c19dabd12d7b0886a9ef98107a958e Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutterer at who-t.net>
+Date: Wed, 15 Apr 2015 15:21:08 +1000
+Subject: [PATCH] touchpad: don't allow taps in the top half of the palm
+ exclusion zone.
+
+Touches in the exclusion zone are ignored for palm detection and don't move
+the cursor. Tapping however triggers before we know whether something is a
+palm or not, so we get erroneous button clickst.
+
+If a tap happens in the top half of the touchpad, within the palm exclusion
+zones, ignore it for tap purposes. To avoid further complicating the state
+machine simply pretend there was a movement > threshold on that finger. This
+advances the tap state machine properly that no button events are sent for
+this finger.
+
+https://bugs.freedesktop.org/show_bug.cgi?id=89625
+
+Signed-off-by: Peter Hutterer <peter.hutterer at who-t.net>
+Reviewed-by: Hans de Goede <hdegoede at redhat.com>
+---
+ doc/palm-detection.dox | 9 ++
+ doc/svg/palm-detection.svg | 213 ++++++++++++++++++++++++++++++++------------
+ src/evdev-mt-touchpad-tap.c | 8 ++
+ src/evdev-mt-touchpad.c | 24 ++++-
+ src/evdev-mt-touchpad.h | 4 +
+ test/touchpad.c | 44 +++++++++
+ 6 files changed, 244 insertions(+), 58 deletions(-)
+
+diff --git a/doc/palm-detection.dox b/doc/palm-detection.dox
+index 4e839e6..a5b578b 100644
+--- a/doc/palm-detection.dox
++++ b/doc/palm-detection.dox
+@@ -23,6 +23,10 @@ screen, it is common for a finger to start inside an exclusion zone and move
+ rapidly across the touchpad. libinput detects such movements and avoids palm
+ detection on such touch sequences.
+
++Each exclusion zone is divided into a top part and a bottom part. A touch
++starting in the top part of the exclusion zone does not trigger a
++tap (see @ref tapping).
++
+ In the diagram below, the exclusion zones are painted red.
+ Touch 'A' starts inside the exclusion zone and moves
+ almost vertically. It is considered a palm and ignored for cursor movement,
+@@ -31,6 +35,11 @@ despite moving out of the exclusion zone.
+ Touch 'B' starts inside the exclusion zone but moves horizontally out of the
+ zone. It is considered a valid touch and controls the cursor.
+
++Touch 'C' occurs in the top part of the exclusion zone. Despite being a
++tapping motion, it does not generate an emulated button event. Touch 'D'
++likewise occurs within the exclusion zone but in the bottom half. libinput
++will generate a button event for this touch.
++
+ @image html palm-detection.svg
+
+ @section trackpoint-disabling Palm detection during trackpoint use
+diff --git a/doc/svg/palm-detection.svg b/doc/svg/palm-detection.svg
+index 9fb6077..c3e45f4 100644
+--- a/doc/svg/palm-detection.svg
++++ b/doc/svg/palm-detection.svg
+@@ -2,15 +2,67 @@
+ <!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+ <svg
++ xmlns:dc="http://purl.org/dc/elements/1.1/"
++ xmlns:cc="http://creativecommons.org/ns#"
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+ xmlns:svg="http://www.w3.org/2000/svg"
+ xmlns="http://www.w3.org/2000/svg"
++ xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
++ xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+ version="1.1"
+ width="393.62857"
+ height="268.62857"
+- id="svg2">
++ id="svg2"
++ inkscape:version="0.91 r13725"
++ sodipodi:docname="palm-detection.svg">
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++ inkscape:pageshadow="2"
++ inkscape:window-width="1920"
++ inkscape:window-height="1136"
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++ inkscape:zoom="3.5662625"
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++ inkscape:cy="156.74673"
++ inkscape:window-x="0"
++ inkscape:window-y="27"
++ inkscape:window-maximized="1"
++ inkscape:current-layer="svg2" />
+ <defs
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+ <marker
++ inkscape:stockid="Arrow1Lstart"
++ orient="auto"
++ refY="0.0"
++ refX="0.0"
++ id="marker4663"
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++ transform="scale(0.8) translate(12.5,0)" />
++ </marker>
++ <marker
+ refX="0"
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+@@ -59,64 +111,111 @@
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+diff --git a/src/evdev-mt-touchpad-tap.c b/src/evdev-mt-touchpad-tap.c
+index 6bd7c58..ae66c22 100644
+--- a/src/evdev-mt-touchpad-tap.c
++++ b/src/evdev-mt-touchpad-tap.c
+@@ -575,6 +575,14 @@ tp_tap_handle_state(struct tp_dispatch *tp, uint64_t time)
+ t->tap.state = TAP_TOUCH_STATE_TOUCH;
+ t->tap.initial = t->point;
+ tp_tap_handle_event(tp, t, TAP_EVENT_TOUCH, time);
++
++ /* If we think this is a palm, pretend there's a
++ * motion event which will prevent tap clicks
++ * without requiring extra states in the FSM.
++ */
++ if (tp_palm_tap_is_palm(tp, t))
++ tp_tap_handle_event(tp, t, TAP_EVENT_MOTION, time);
++
+ } else if (t->state == TOUCH_END) {
+ tp_tap_handle_event(tp, t, TAP_EVENT_RELEASE, time);
+ t->tap.state = TAP_TOUCH_STATE_IDLE;
+diff --git a/src/evdev-mt-touchpad.c b/src/evdev-mt-touchpad.c
+index 356133f..53d80b2 100644
+--- a/src/evdev-mt-touchpad.c
++++ b/src/evdev-mt-touchpad.c
+@@ -458,6 +458,24 @@ tp_touch_active(struct tp_dispatch *tp, struct tp_touch *t)
+ tp_edge_scroll_touch_active(tp, t);
+ }
+
++bool
++tp_palm_tap_is_palm(struct tp_dispatch *tp, struct tp_touch *t)
++{
++ if (t->state != TOUCH_BEGIN)
++ return false;
++
++ if (t->point.x > tp->palm.left_edge &&
++ t->point.x < tp->palm.right_edge)
++ return false;
++
++ /* We're inside the left/right palm edge and in the northern half of
++ * the touchpad - this tap is a palm */
++ if (t->point.y < tp->palm.vert_center)
++ return true;
++
++ return false;
++}
++
+ static void
+ tp_palm_detect(struct tp_dispatch *tp, struct tp_touch *t, uint64_t time)
+ {
+@@ -1084,13 +1102,16 @@ static int
+ tp_init_palmdetect(struct tp_dispatch *tp,
+ struct evdev_device *device)
+ {
+- int width;
++ int width, height;
+
+ tp->palm.right_edge = INT_MAX;
+ tp->palm.left_edge = INT_MIN;
++ tp->palm.vert_center = INT_MIN;
+
+ width = abs(device->abs.absinfo_x->maximum -
+ device->abs.absinfo_x->minimum);
++ height = abs(device->abs.absinfo_y->maximum -
++ device->abs.absinfo_y->minimum);
+
+ /* Apple touchpads are always big enough to warrant palm detection */
+ if (evdev_device_get_id_vendor(device) != VENDOR_ID_APPLE) {
+@@ -1107,6 +1128,7 @@ tp_init_palmdetect(struct tp_dispatch *tp,
+ /* palm edges are 5% of the width on each side */
+ tp->palm.right_edge = device->abs.absinfo_x->maximum - width * 0.05;
+ tp->palm.left_edge = device->abs.absinfo_x->minimum + width * 0.05;
++ tp->palm.vert_center = device->abs.absinfo_y->minimum + height/2;
+
+ return 0;
+ }
+diff --git a/src/evdev-mt-touchpad.h b/src/evdev-mt-touchpad.h
+index 9980f90..6de999f 100644
+--- a/src/evdev-mt-touchpad.h
++++ b/src/evdev-mt-touchpad.h
+@@ -260,6 +260,7 @@ struct tp_dispatch {
+ struct {
+ int32_t right_edge; /* in device coordinates */
+ int32_t left_edge; /* in device coordinates */
++ int32_t vert_center; /* in device coordinates */
+ } palm;
+
+ struct {
+@@ -385,4 +386,7 @@ tp_gesture_post_events(struct tp_dispatch *tp, uint64_t time);
+ void
+ tp_gesture_stop_twofinger_scroll(struct tp_dispatch *tp, uint64_t time);
+
++bool
++tp_palm_tap_is_palm(struct tp_dispatch *tp, struct tp_touch *t);
++
+ #endif
+diff --git a/test/touchpad.c b/test/touchpad.c
+index 6fa2301..882e689 100644
+--- a/test/touchpad.c
++++ b/test/touchpad.c
+@@ -2399,6 +2399,49 @@ START_TEST(touchpad_palm_detect_no_palm_moving_into_edges)
+ }
+ END_TEST
+
++START_TEST(touchpad_palm_detect_tap)
++{
++ struct litest_device *dev = litest_current_device();
++ struct libinput *li = dev->libinput;
++
++ if (!touchpad_has_palm_detect_size(dev))
++ return;
++
++ libinput_device_config_tap_set_enabled(dev->libinput_device,
++ LIBINPUT_CONFIG_TAP_ENABLED);
++
++ litest_drain_events(li);
++
++ litest_touch_down(dev, 0, 95, 5);
++ litest_touch_up(dev, 0);
++ litest_assert_empty_queue(li);
++
++ litest_touch_down(dev, 0, 5, 5);
++ litest_touch_up(dev, 0);
++ litest_assert_empty_queue(li);
++
++ litest_touch_down(dev, 0, 5, 90);
++ litest_touch_up(dev, 0);
++ litest_assert_button_event(li,
++ BTN_LEFT,
++ LIBINPUT_BUTTON_STATE_PRESSED);
++ litest_assert_button_event(li,
++ BTN_LEFT,
++ LIBINPUT_BUTTON_STATE_RELEASED);
++ litest_assert_empty_queue(li);
++
++ litest_touch_down(dev, 0, 95, 90);
++ litest_touch_up(dev, 0);
++ litest_assert_button_event(li,
++ BTN_LEFT,
++ LIBINPUT_BUTTON_STATE_PRESSED);
++ litest_assert_button_event(li,
++ BTN_LEFT,
++ LIBINPUT_BUTTON_STATE_RELEASED);
++ litest_assert_empty_queue(li);
++}
++END_TEST
++
+ START_TEST(touchpad_left_handed)
+ {
+ struct litest_device *dev = litest_current_device();
+@@ -3448,6 +3491,7 @@ int main(int argc, char **argv) {
+ litest_add("touchpad:palm", touchpad_palm_detect_palm_becomes_pointer, LITEST_TOUCHPAD, LITEST_ANY);
+ litest_add("touchpad:palm", touchpad_palm_detect_palm_stays_palm, LITEST_TOUCHPAD, LITEST_ANY);
+ litest_add("touchpad:palm", touchpad_palm_detect_no_palm_moving_into_edges, LITEST_TOUCHPAD, LITEST_ANY);
++ litest_add("touchpad:palm", touchpad_palm_detect_tap, LITEST_TOUCHPAD, LITEST_ANY);
+
+ litest_add("touchpad:left-handed", touchpad_left_handed, LITEST_TOUCHPAD|LITEST_BUTTON, LITEST_CLICKPAD);
+ litest_add("touchpad:left-handed", touchpad_left_handed_clickpad, LITEST_CLICKPAD, LITEST_APPLE_CLICKPAD);
+--
+2.3.4
+
diff --git a/libinput.spec b/libinput.spec
index 1b85bcf..abf7c99 100644
--- a/libinput.spec
+++ b/libinput.spec
@@ -5,7 +5,7 @@
Name: libinput
Version: 0.13.0
-Release: 4%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
+Release: 5%{?gitdate:.%{gitdate}git%{gitversion}}%{?dist}
Summary: Input device library
License: MIT
@@ -22,6 +22,8 @@ Patch01: 0001-evdev-fix-crash-for-missing-ABS_X-Y.patch
Patch02: 0002-evdev-fix-handling-of-fake-MT-devices-without-ABS_X-.patch
Patch03: 0001-evdev-fix-inverted-mouse-normalization.patch
Patch04: 0001-touchpad-delay-fake-finger-processing-until-the-EV_S.patch
+Patch05: 0001-touchpad-Reduce-palm-detection-threshold-to-70mm.patch
+Patch06: 0001-touchpad-don-t-allow-taps-in-the-top-half-of-the-pal.patch
BuildRequires: git
BuildRequires: autoconf automake libtool pkgconfig
@@ -89,6 +91,10 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
%changelog
+* Thu Apr 16 2015 Peter Hutterer <peter.hutterer at redhat.com> 0.13.0-5
+- Reduce palm detection threshold to 70mm (#1209753)
+- Don't allow taps in the top part of the palm zone (#1209753)
+
* Thu Apr 09 2015 Peter Hutterer <peter.hutterer at redhat.com> 0.13.0-4
- Fix finger miscounts on single-touch touchpads (#1209151)
--
cgit v0.10.2
http://pkgs.fedoraproject.org/cgit/libinput.git/commit/?h=master&id=f1e2a7fd36f7d7fd80621be44c072a22c2e786b4
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