blob: a47411465d92bc06fcce5876d91fbb8a1eb41f01 [file] [log] [blame]
* Multitouch X driver
* Copyright (C) 2008 Henrik Rydberg <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#ifndef MTSTATE_H
#define MTSTATE_H
#include "hwstate.h"
struct MTState {
struct FingerState finger[DIM_FINGER];
int nfinger;
bitmask_t thumb;
bitmask_t button;
mstime_t evtime;
void init_mtstate(struct MTState *s);
void extract_mtstate(struct MTState *s,
const struct HWState *hs,
const struct Capabilities *caps);
void output_mtstate(const struct MTState *s);
const struct FingerState *find_finger(const struct MTState *s, int id);
static inline int center_dist2(const struct FingerState *a,
const struct Capabilities *caps)
return dist2(a->position_x - get_cap_xmid(caps),
a->position_y - get_cap_ymid(caps));
static inline int center_maxdist2(const struct Capabilities *caps)
return dist2(get_cap_xsize(caps) / 2, get_cap_ysize(caps) / 2);