Copyright (C) 2021-2023 Huawei Device Co., Ltd.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at\n

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

diff -Naur old/src/core.c new/src/core.c
--- old/src/core.c	2021-01-01 00:00:00.000000000 +0800
+++ new/src/core.c	2021-01-01 00:00:00.000000000 +0800
@@ -252,7 +252,8 @@
 	struct input_event ev;
 	int i, count = 0;
 	foreach_bit(i, prop)
-		if (get_sval(&state->data[slot], i) != get_sval(data, i))
+		if (mtdev_mt2abs(i) == ABS_MT_POSITION_X || mtdev_mt2abs(i) == ABS_MT_POSITION_Y ||
+			get_sval(&state->data[slot], i) != get_sval(data, i))
 			count++;
 	if (!count)
 		return;
@@ -268,7 +269,8 @@
 	foreach_bit(i, prop) {
 		ev.code = mtdev_mt2abs(i);
 		ev.value = get_sval(data, i);
-		if (get_sval(&state->data[slot], i) != ev.value) {
+		if (ev.code == ABS_MT_POSITION_X || ev.code == ABS_MT_POSITION_Y ||
+			get_sval(&state->data[slot], i) != ev.value) {
 			evbuf_put(&state->outbuf, &ev);
 			set_sval(&state->data[slot], i, ev.value);
 		}
@@ -297,7 +299,11 @@
 		foreach_bit(slot, state->used) {
 			if (state->data[slot].tracking_id != id)
 				continue;
+#ifdef DISABLE_FILTER
+			(void)filter_data;
+#else
 			filter_data(state, dev, &data[i], prop[i], slot);
+#endif
 			push_slot_changes(state, &data[i], prop[i], slot, syn);
 			SETBIT(used, slot);
 			id = MT_ID_NULL;