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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_TOUCH_H
#define _GRAIL_TOUCH_H
#include <grail-bits.h>
#include <mtdev.h>
#define DIM_TOUCH 32
#define DIM_TOUCH_BYTES ((DIM_TOUCH + 7) >> 3)
typedef int touch_prop_t;
typedef __u64 touch_time_t;
enum touch_prop_list {
TP_POS_X,
TP_POS_Y,
TP_TOUCH_MAJOR,
TP_TOUCH_MINOR,
TP_WIDTH_MAJOR,
TP_WIDTH_MINOR,
TP_ORIENTATION,
TP_PRESSURE,
DIM_TOUCH_PROP
};
#define DIM_TOUCH_PROP_BYTES ((DIM_TOUCH_PROP + 7) >> 3)
struct touch {
int active;
int slot;
touch_prop_t prop[DIM_TOUCH_PROP];
};
struct touch_frame {
int nactive;
int ncreate, nmodify, ndestroy;
touch_time_t time;
grail_mask_t touches[DIM_TOUCH_BYTES];
struct touch *active[DIM_TOUCH];
struct touch touch[DIM_TOUCH];
};
struct touch_dev_caps {
grail_mask_t mask[DIM_TOUCH_PROP_BYTES];
struct input_absinfo info[DIM_TOUCH_PROP];
};
struct touch_dev {
void (*event)(struct touch_dev *dev, const struct input_event *ev);
void (*create)(struct touch_dev *dev, int slot,
const grail_mask_t *mask, const touch_prop_t *prop);
void (*modify)(struct touch_dev *dev, int slot,
const grail_mask_t *mask, const touch_prop_t *prop);
void (*destroy)(struct touch_dev *dev, int slot);
void (*sync)(struct touch_dev *dev, const struct input_event *syn);
struct touch_dev_caps caps;
struct touch_dev_impl *impl;
void *priv;
};
struct touch_engine {
void (*event)(struct touch_engine *engine,
const struct input_event *ev);
void (*sync)(struct touch_engine *engine,
const struct input_event *syn);
struct touch_frame frame;
void *priv;
};
int touch_dev_open(struct touch_dev *dev, int fd);
int touch_dev_idle(struct touch_dev *dev, int fd, int ms);
int touch_dev_pull(struct touch_dev *dev, int fd);
void touch_dev_close(struct touch_dev *dev, int fd);
void touch_engine_init(struct touch_engine *engine,
void (*event)(struct touch_engine *engine,
const struct input_event *ev),
void (*sync)(struct touch_engine *engine,
const struct input_event *ev),
void *priv);
void touch_engine_attach(struct touch_engine *engine, struct touch_dev *dev);
void touch_engine_detach(struct touch_engine *engine, struct touch_dev *dev);
#endif
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