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