location_driver.h

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/* RetroArch - A frontend for libretro.
 * Copyright (C) 2010-2014 - Hans-Kristian Arntzen
 * Copyright (C) 2011-2017 - Daniel De Matteis
 *
 * RetroArch 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 Found-
 * ation, either version 3 of the License, or (at your option) any later version.
 *
 * RetroArch 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 RetroArch.
 * If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef __LOCATION_DRIVER__H
#define __LOCATION_DRIVER__H

#include <stdint.h>
#include <stddef.h>

#include <boolean.h>
#include <retro_common_api.h>

RETRO_BEGIN_DECLS

enum rarch_location_ctl_state
{
 RARCH_LOCATION_CTL_NONE = 0,
 RARCH_LOCATION_CTL_DESTROY,
 RARCH_LOCATION_CTL_DEINIT,
 RARCH_LOCATION_CTL_SET_OWN_DRIVER,
 RARCH_LOCATION_CTL_UNSET_OWN_DRIVER,
 RARCH_LOCATION_CTL_OWNS_DRIVER,
 RARCH_LOCATION_CTL_SET_ACTIVE,
 RARCH_LOCATION_CTL_UNSET_ACTIVE,
 RARCH_LOCATION_CTL_IS_ACTIVE
};

typedef struct location_driver
{
 void *(*init)(void);
 void (*free)(void *data);

 bool (*start)(void *data);
 void (*stop)(void *data);

 bool (*get_position)(void *data, double *lat, double *lon,
 double *horiz_accuracy, double *vert_accuracy);
 void (*set_interval)(void *data, unsigned interval_msecs,
 unsigned interval_distance);
 const char *ident;
} location_driver_t;

extern location_driver_t location_corelocation;
extern location_driver_t location_android;
extern location_driver_t location_null;

bool driver_location_start(void);

void driver_location_stop(void);

bool driver_location_get_position(double *lat, double *lon,
 double *horiz_accuracy, double *vert_accuracy);

void driver_location_set_interval(unsigned interval_msecs,
 unsigned interval_distance);

const char* config_get_location_driver_options(void);

const void *location_driver_find_handle(int index);

const char *location_driver_find_ident(int index);

void find_location_driver(void);

void init_location(void);

bool location_driver_ctl(enum rarch_location_ctl_state state, void *data);

RETRO_END_DECLS

#endif