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/*****************************************************************************
*
* grail - Gesture Recognition And Instantiation Library
*
* Copyright (C) 2010 Canonical Ltd.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Henrik Rydberg <rydberg@bitmath.org>
*
****************************************************************************/
#ifndef _GRAIL_GESTURE_H
#define _GRAIL_GESTURE_H
#include <grail-touch.h>
#include <grail.h>
#include "gebuf.h"
#define DIM_EV_TYPE EV_CNT
#define DIM_EV_TYPE_BYTES (DIM_EV_TYPE >> 3)
#define DIM_SLOT 32
#define DIM_SLOT_BYTES (DIM_SLOT >> 3)
#define DIM_CLIENT 32
struct slot_state {
int type, id, status, x, y, nclient;
struct grail_client_id client_id[DIM_CLIENT];
grail_mask_t span[DIM_SLOT_BYTES];
struct gebuf buf;
};
struct gesture_inserter {
struct slot_state state[DIM_SLOT];
grail_mask_t used[DIM_SLOT_BYTES];
grail_time_t time;
int gestureid;
};
int gin_init(struct grail *ge);
void gin_destroy(struct grail *ge);
void gin_frame_begin(struct grail *ge, grail_time_t time);
void gin_frame_end(struct grail *ge, grail_mask_t *filtered);
int gin_gesture_begin(struct grail *ge, const struct touch_frame *frame,
int type, int x, int y, const grail_mask_t *span);
void gin_gesture_discard(struct gesture_inserter *gin, int slot);
void gin_gesture_end(struct gesture_inserter *gin, int slot);
void gin_gesture_end_all(struct gesture_inserter *gin);
void gin_gesture_event(struct gesture_inserter *gin, int slot,
const grail_prop_t *prop);
#endif
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