mirror of
https://github.com/libretro/RetroArch.git
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145 lines
4.0 KiB
C
145 lines
4.0 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __LOCATION_DRIVER__H
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#define __LOCATION_DRIVER__H
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#include <stdint.h>
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#include <stddef.h>
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#include <boolean.h>
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#include <retro_common_api.h>
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RETRO_BEGIN_DECLS
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enum rarch_location_ctl_state
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{
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RARCH_LOCATION_CTL_NONE = 0,
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RARCH_LOCATION_CTL_DESTROY,
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RARCH_LOCATION_CTL_DEINIT,
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RARCH_LOCATION_CTL_SET_OWN_DRIVER,
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RARCH_LOCATION_CTL_UNSET_OWN_DRIVER,
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RARCH_LOCATION_CTL_OWNS_DRIVER,
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RARCH_LOCATION_CTL_SET_ACTIVE,
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RARCH_LOCATION_CTL_UNSET_ACTIVE,
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RARCH_LOCATION_CTL_IS_ACTIVE
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};
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typedef struct location_driver
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{
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void *(*init)(void);
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void (*free)(void *data);
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bool (*start)(void *data);
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void (*stop)(void *data);
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bool (*get_position)(void *data, double *lat, double *lon,
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double *horiz_accuracy, double *vert_accuracy);
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void (*set_interval)(void *data, unsigned interval_msecs,
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unsigned interval_distance);
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const char *ident;
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} location_driver_t;
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extern location_driver_t location_corelocation;
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extern location_driver_t location_android;
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extern location_driver_t location_null;
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/**
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* driver_location_start:
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*
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* Starts location driver interface..
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* Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE.
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*
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* Returns: true (1) if successful, otherwise false (0).
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**/
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bool driver_location_start(void);
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/**
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* driver_location_stop:
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*
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* Stops location driver interface..
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* Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE.
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*
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* Returns: true (1) if successful, otherwise false (0).
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**/
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void driver_location_stop(void);
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/**
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* driver_location_get_position:
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* @lat : Latitude of current position.
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* @lon : Longitude of current position.
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* @horiz_accuracy : Horizontal accuracy.
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* @vert_accuracy : Vertical accuracy.
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*
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* Gets current positioning information from
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* location driver interface.
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* Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE.
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*
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* Returns: bool (1) if successful, otherwise false (0).
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**/
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bool driver_location_get_position(double *lat, double *lon,
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double *horiz_accuracy, double *vert_accuracy);
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/**
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* driver_location_set_interval:
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* @interval_msecs : Interval time in milliseconds.
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* @interval_distance : Distance at which to update.
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*
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* Sets interval update time for location driver interface.
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* Used by RETRO_ENVIRONMENT_GET_LOCATION_INTERFACE.
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**/
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void driver_location_set_interval(unsigned interval_msecs,
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unsigned interval_distance);
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/**
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* config_get_location_driver_options:
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*
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* Get an enumerated list of all location driver names,
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* separated by '|'.
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*
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* Returns: string listing of all location driver names,
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* separated by '|'.
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**/
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const char* config_get_location_driver_options(void);
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/**
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* location_driver_find_handle:
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* @index : index of driver to get handle to.
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*
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* Returns: handle to location driver at index. Can be NULL
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* if nothing found.
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**/
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const void *location_driver_find_handle(int index);
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/**
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* location_driver_find_ident:
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* @index : index of driver to get handle to.
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*
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* Returns: Human-readable identifier of location driver at index. Can be NULL
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* if nothing found.
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**/
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const char *location_driver_find_ident(int index);
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void find_location_driver(void);
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void init_location(void);
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bool location_driver_ctl(enum rarch_location_ctl_state state, void *data);
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RETRO_END_DECLS
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#endif
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