mirror of
https://github.com/CTCaer/RetroArch.git
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286 lines
7.6 KiB
C
286 lines
7.6 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2016 - 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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#include <string.h>
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#ifdef HAVE_CONFIG_H
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#include "../config.h"
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#endif
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#include "location_driver.h"
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#include "../configuration.h"
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#include "../core.h"
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#include "../driver.h"
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#include "../retroarch.h"
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#include "../runloop.h"
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#include "../list_special.h"
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#include "../verbosity.h"
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static const location_driver_t *location_drivers[] = {
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#ifdef ANDROID
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&location_android,
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#endif
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#ifdef HAVE_CORELOCATION
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#if defined(HAVE_COCOA) || defined(HAVE_COCOATOUCH)
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&location_corelocation,
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#endif
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#endif
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&location_null,
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NULL,
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};
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static const location_driver_t *location_driver;
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static void *location_data;
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/**
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* location_driver_find_handle:
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* @idx : 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 idx)
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{
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const void *drv = location_drivers[idx];
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if (!drv)
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return NULL;
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return drv;
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}
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/**
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* location_driver_find_ident:
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* @idx : 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 idx)
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{
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const location_driver_t *drv = location_drivers[idx];
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if (!drv)
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return NULL;
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return drv->ident;
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}
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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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return char_list_new_special(STRING_LIST_LOCATION_DRIVERS, NULL);
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}
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void find_location_driver(void)
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{
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int i;
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driver_ctx_info_t drv;
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settings_t *settings = config_get_ptr();
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drv.label = "location_driver";
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drv.s = settings->location.driver;
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driver_ctl(RARCH_DRIVER_CTL_FIND_INDEX, &drv);
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i = drv.len;
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if (i >= 0)
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location_driver = (const location_driver_t*)location_driver_find_handle(i);
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else
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{
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unsigned d;
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RARCH_ERR("Couldn't find any location driver named \"%s\"\n",
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settings->location.driver);
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RARCH_LOG_OUTPUT("Available location drivers are:\n");
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for (d = 0; location_driver_find_handle(d); d++)
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RARCH_LOG_OUTPUT("\t%s\n", location_driver_find_ident(d));
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RARCH_WARN("Going to default to first location driver...\n");
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location_driver = (const location_driver_t*)location_driver_find_handle(0);
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if (!location_driver)
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retroarch_fail(1, "find_location_driver()");
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}
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}
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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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settings_t *settings = config_get_ptr();
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if (location_driver && location_data && location_driver->start)
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{
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if (settings->location.allow)
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return location_driver->start(location_data);
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runloop_msg_queue_push("Location is explicitly disabled.\n", 1, 180, true);
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}
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return false;
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}
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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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if (location_driver && location_driver->stop && location_data)
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location_driver->stop(location_data);
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}
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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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if (location_driver && location_driver->set_interval
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&& location_data)
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location_driver->set_interval(location_data,
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interval_msecs, interval_distance);
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}
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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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if (location_driver && location_driver->get_position
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&& location_data)
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return location_driver->get_position(location_data,
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lat, lon, horiz_accuracy, vert_accuracy);
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*lat = 0.0;
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*lon = 0.0;
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*horiz_accuracy = 0.0;
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*vert_accuracy = 0.0;
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return false;
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}
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void init_location(void)
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{
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rarch_system_info_t *system = NULL;
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runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
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/* Resource leaks will follow if location interface is initialized twice. */
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if (location_data)
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return;
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find_location_driver();
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location_data = location_driver->init();
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if (!location_data)
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{
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RARCH_ERR("Failed to initialize location driver. Will continue without location.\n");
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location_driver_ctl(RARCH_LOCATION_CTL_UNSET_ACTIVE, NULL);
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}
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if (system->location_cb.initialized)
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system->location_cb.initialized();
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}
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static void uninit_location(void)
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{
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rarch_system_info_t *system = NULL;
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runloop_ctl(RUNLOOP_CTL_SYSTEM_INFO_GET, &system);
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if (location_data && location_driver)
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{
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if (system->location_cb.deinitialized)
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system->location_cb.deinitialized();
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if (location_driver->free)
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location_driver->free(location_data);
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}
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location_data = NULL;
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}
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bool location_driver_ctl(enum rarch_location_ctl_state state, void *data)
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{
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static bool location_driver_active = false;
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static bool location_driver_data_own = false;
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switch (state)
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{
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case RARCH_LOCATION_CTL_DESTROY:
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location_driver_active = false;
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location_driver_data_own = false;
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location_driver = NULL;
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break;
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case RARCH_LOCATION_CTL_DEINIT:
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uninit_location();
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break;
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case RARCH_LOCATION_CTL_SET_OWN_DRIVER:
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location_driver_data_own = true;
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break;
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case RARCH_LOCATION_CTL_UNSET_OWN_DRIVER:
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location_driver_data_own = false;
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break;
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case RARCH_LOCATION_CTL_OWNS_DRIVER:
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return location_driver_data_own;
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case RARCH_LOCATION_CTL_SET_ACTIVE:
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location_driver_active = true;
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break;
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case RARCH_LOCATION_CTL_UNSET_ACTIVE:
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location_driver_active = false;
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break;
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case RARCH_LOCATION_CTL_IS_ACTIVE:
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return location_driver_active;
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default:
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break;
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}
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return true;
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}
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