RetroArch/location/android.c

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/* RetroArch - A frontend for libretro.
2014-01-01 00:50:59 +00:00
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2014 - 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/>.
*/
#include "../driver.h"
#include "../android/native/jni/jni_macros.h"
typedef struct android_location
{
jmethodID onLocationInit;
jmethodID onLocationFree;
jmethodID onLocationStart;
jmethodID onLocationStop;
jmethodID onLocationSetInterval;
jmethodID onLocationGetLongitude;
jmethodID onLocationGetLatitude;
jmethodID onLocationGetHorizontalAccuracy;
jmethodID onLocationHasChanged;
} androidlocation_t;
static void *android_location_init(void)
{
JNIEnv *env;
jclass class;
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)calloc(1, sizeof(androidlocation_t));
if (!androidlocation)
return NULL;
env = jni_thread_getenv();
if (!env)
goto dealloc;
GET_OBJECT_CLASS(env, class, android_app->activity->clazz);
if (class == NULL)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationInit, class, "onLocationInit", "()V");
if (!androidlocation->onLocationInit)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationFree, class, "onLocationFree", "()V");
if (!androidlocation->onLocationFree)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationStart, class, "onLocationStart", "()V");
if (!androidlocation->onLocationStart)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationStop, class, "onLocationStop", "()V");
if (!androidlocation->onLocationStop)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationGetLatitude, class, "onLocationGetLatitude", "()D");
if (!androidlocation->onLocationGetLatitude)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationGetLongitude, class, "onLocationGetLongitude", "()D");
if (!androidlocation->onLocationGetLongitude)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationGetHorizontalAccuracy, class, "onLocationGetHorizontalAccuracy", "()D");
if (!androidlocation->onLocationGetHorizontalAccuracy)
goto dealloc;
2013-12-20 16:10:35 +00:00
GET_METHOD_ID(env, androidlocation->onLocationSetInterval, class, "onLocationSetInterval", "(II)V");
if (!androidlocation->onLocationSetInterval)
goto dealloc;
GET_METHOD_ID(env, androidlocation->onLocationHasChanged, class, "onLocationHasChanged", "()Z");
if (!androidlocation->onLocationHasChanged)
goto dealloc;
CALL_VOID_METHOD(env, android_app->activity->clazz, androidlocation->onLocationInit);
return androidlocation;
dealloc:
free(androidlocation);
return NULL;
}
static void android_location_free(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return;
CALL_VOID_METHOD(env, android_app->activity->clazz, androidlocation->onLocationFree);
free(androidlocation);
}
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static bool android_location_start(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return false;
CALL_VOID_METHOD(env, android_app->activity->clazz, androidlocation->onLocationStart);
return true;
}
static void android_location_stop(void *data)
{
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return;
CALL_VOID_METHOD(env, android_app->activity->clazz, androidlocation->onLocationStop);
}
static bool android_location_get_position(void *data, double *latitude, double *longitude, double *horiz_accuracy,
double *vert_accuracy)
{
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
goto fail;
jdouble lat, lon, horiz_accu;
jboolean newLocation;
CALL_BOOLEAN_METHOD(env, newLocation, android_app->activity->clazz, androidlocation->onLocationHasChanged);
if (!newLocation)
goto fail;
CALL_DOUBLE_METHOD(env, lat, android_app->activity->clazz, androidlocation->onLocationGetLatitude);
CALL_DOUBLE_METHOD(env, lon, android_app->activity->clazz, androidlocation->onLocationGetLongitude);
CALL_DOUBLE_METHOD(env, horiz_accu, android_app->activity->clazz, androidlocation->onLocationGetHorizontalAccuracy);
if (lat != 0.0)
*latitude = lat;
if (lon != 0.0)
*longitude = lon;
if (horiz_accu != 0.0)
*horiz_accuracy = horiz_accu;
/* TODO/FIXME - custom implement vertical accuracy since Android location API does not have it? */
*vert_accuracy = 0.0;
return true;
fail:
*latitude = 0.0;
*longitude = 0.0;
*horiz_accuracy = 0.0;
*vert_accuracy = 0.0;
return false;
}
static void android_location_set_interval(void *data, unsigned interval_ms, unsigned interval_distance)
{
struct android_app *android_app = (struct android_app*)g_android;
androidlocation_t *androidlocation = (androidlocation_t*)data;
JNIEnv *env = jni_thread_getenv();
if (!env)
return;
CALL_VOID_METHOD_PARAM(env, android_app->activity->clazz, androidlocation->onLocationSetInterval, (int)interval_ms, (int)interval_distance);
}
const location_driver_t location_android = {
android_location_init,
android_location_free,
android_location_start,
android_location_stop,
android_location_get_position,
android_location_set_interval,
"android",
};