| /*************************************************************************** |
| * |
| * Multitouch X driver |
| * Copyright (C) 2008 Henrik Rydberg <rydberg@euromail.se> |
| * |
| * 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 |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * 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 HWSTATE_H |
| #define HWSTATE_H |
| |
| #include "capabilities.h" |
| |
| struct FingerState { |
| int touch_major, touch_minor; |
| int width_major, width_minor; |
| int orientation, pressure; |
| int position_x, position_y; |
| int tracking_id; |
| }; |
| |
| struct HWState { |
| struct FingerState data[DIM_FINGER]; |
| bitmask_t used; |
| bitmask_t slot; |
| bitmask_t button; |
| mstime_t evtime; |
| }; |
| |
| void init_hwstate(struct HWState *s, |
| const struct Capabilities *caps); |
| int modify_hwstate(struct HWState *s, struct mtdev *dev, int fd, |
| const struct Capabilities *caps); |
| void output_hwstate(const struct HWState *s); |
| |
| static inline int finger_dist2(const struct FingerState *a, |
| const struct FingerState *b) |
| { |
| return dist2(a->position_x - b->position_x, |
| a->position_y - b->position_y); |
| } |
| |
| #endif |