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From c4633014fff25d32926129a8b028124c6338bb2b Mon Sep 17 00:00:00 2001
From: Louai Al-Khanji <louai.al-khanji@theqtcompany.com>
Date: Wed, 19 Aug 2015 09:04:46 +0300
Subject: [PATCH 1/1] Adapt changes made in libinput/src/evdev.c for touch
frame emission.
---
src/evdev.c | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/src/evdev.c b/src/evdev.c
index 888dfbd..daa5d72 100644
--- a/src/evdev.c
+++ b/src/evdev.c
@@ -359,12 +359,36 @@ evdev_process_absolute(struct evdev_device *device,
}
}
+static inline int
+evdev_need_touch_frame(struct evdev_device *device)
+{
+ if (!(device->seat_caps & EVDEV_SEAT_TOUCH))
+ return 0;
+
+ switch (device->pending_event) {
+ case EVDEV_NONE:
+ case EVDEV_RELATIVE_MOTION:
+ break;
+ case EVDEV_ABSOLUTE_MT_DOWN:
+ case EVDEV_ABSOLUTE_MT_MOTION:
+ case EVDEV_ABSOLUTE_MT_UP:
+ case EVDEV_ABSOLUTE_TOUCH_DOWN:
+ case EVDEV_ABSOLUTE_TOUCH_UP:
+ case EVDEV_ABSOLUTE_MOTION:
+ return 1;
+ }
+
+ return 0;
+}
+
static void
fallback_process(struct evdev_dispatch *dispatch,
struct evdev_device *device,
struct input_event *event,
uint32_t time)
{
+ int need_frame = 0;
+
switch (event->type) {
case EV_REL:
evdev_process_relative(device, event, time);
@@ -376,7 +400,10 @@ fallback_process(struct evdev_dispatch *dispatch,
evdev_process_key(device, event, time);
break;
case EV_SYN:
+ need_frame = evdev_need_touch_frame(device);
evdev_flush_pending_event(device, time);
+ if (need_frame)
+ notify_touch_frame(device->seat);
break;
}
}
--
2.1.4
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