diff options
Diffstat (limited to 'Source/external/SDL2/src/sensor/android/SDL_androidsensor.c')
| -rw-r--r-- | Source/external/SDL2/src/sensor/android/SDL_androidsensor.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/sensor/android/SDL_androidsensor.c b/Source/external/SDL2/src/sensor/android/SDL_androidsensor.c new file mode 100644 index 0000000..117c18d --- /dev/null +++ b/Source/external/SDL2/src/sensor/android/SDL_androidsensor.c @@ -0,0 +1,211 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ + +#include "SDL_config.h" + +#ifdef SDL_SENSOR_ANDROID + +/* This is the system specific header for the SDL sensor API */ +#include <android/sensor.h> + +#include "SDL_error.h" +#include "SDL_sensor.h" +#include "SDL_androidsensor.h" +#include "../SDL_syssensor.h" +#include "../SDL_sensor_c.h" +//#include "../../core/android/SDL_android.h" + +#ifndef LOOPER_ID_USER +#define LOOPER_ID_USER 3 +#endif + +typedef struct +{ + ASensorRef asensor; + SDL_SensorID instance_id; +} SDL_AndroidSensor; + +static ASensorManager* SDL_sensor_manager; +static ALooper* SDL_sensor_looper; +static SDL_AndroidSensor *SDL_sensors; +static int SDL_sensors_count; + +static int +SDL_ANDROID_SensorInit(void) +{ + int i, sensors_count; + ASensorList sensors; + + SDL_sensor_manager = ASensorManager_getInstance(); + if (!SDL_sensor_manager) { + return SDL_SetError("Couldn't create sensor manager"); + } + + SDL_sensor_looper = ALooper_forThread(); + if (!SDL_sensor_looper) { + SDL_sensor_looper = ALooper_prepare(ALOOPER_PREPARE_ALLOW_NON_CALLBACKS); + if (!SDL_sensor_looper) { + return SDL_SetError("Couldn't create sensor event loop"); + } + } + + /* FIXME: Is the sensor list dynamic? */ + sensors_count = ASensorManager_getSensorList(SDL_sensor_manager, &sensors); + if (sensors_count > 0) { + SDL_sensors = (SDL_AndroidSensor *)SDL_calloc(sensors_count, sizeof(*SDL_sensors)); + if (!SDL_sensors) { + return SDL_OutOfMemory(); + } + + for (i = 0; i < sensors_count; ++i) { + SDL_sensors[i].asensor = sensors[i]; + SDL_sensors[i].instance_id = SDL_GetNextSensorInstanceID(); + } + SDL_sensors_count = sensors_count; + } + return 0; +} + +static int +SDL_ANDROID_SensorGetCount(void) +{ + return SDL_sensors_count; +} + +static void +SDL_ANDROID_SensorDetect(void) +{ +} + +static const char * +SDL_ANDROID_SensorGetDeviceName(int device_index) +{ + return ASensor_getName(SDL_sensors[device_index].asensor); +} + +static SDL_SensorType +SDL_ANDROID_SensorGetDeviceType(int device_index) +{ + switch (ASensor_getType(SDL_sensors[device_index].asensor)) { + case 0x00000001: + return SDL_SENSOR_ACCEL; + case 0x00000004: + return SDL_SENSOR_GYRO; + default: + return SDL_SENSOR_UNKNOWN; + } +} + +static int +SDL_ANDROID_SensorGetDeviceNonPortableType(int device_index) +{ + return ASensor_getType(SDL_sensors[device_index].asensor); +} + +static SDL_SensorID +SDL_ANDROID_SensorGetDeviceInstanceID(int device_index) +{ + return SDL_sensors[device_index].instance_id; +} + +static int +SDL_ANDROID_SensorOpen(SDL_Sensor *sensor, int device_index) +{ + struct sensor_hwdata *hwdata; + + hwdata = (struct sensor_hwdata *)SDL_calloc(1, sizeof(*hwdata)); + if (hwdata == NULL) { + return SDL_OutOfMemory(); + } + + hwdata->asensor = SDL_sensors[device_index].asensor; + hwdata->eventqueue = ASensorManager_createEventQueue(SDL_sensor_manager, SDL_sensor_looper, LOOPER_ID_USER, NULL, NULL); + if (!hwdata->eventqueue) { + SDL_free(hwdata); + return SDL_SetError("Couldn't create sensor event queue"); + } + + if (ASensorEventQueue_enableSensor(hwdata->eventqueue, hwdata->asensor) < 0) { + ASensorManager_destroyEventQueue(SDL_sensor_manager, hwdata->eventqueue); + SDL_free(hwdata); + return SDL_SetError("Couldn't enable sensor"); + } + + /* FIXME: What rate should we set for this sensor? 60 FPS? Let's try the default rate for now... */ + + sensor->hwdata = hwdata; + return 0; +} + +static void +SDL_ANDROID_SensorUpdate(SDL_Sensor *sensor) +{ + int events; + ASensorEvent event; + struct android_poll_source* source; + + if (ALooper_pollAll(0, NULL, &events, (void**)&source) == LOOPER_ID_USER) { + SDL_zero(event); + while (ASensorEventQueue_getEvents(sensor->hwdata->eventqueue, &event, 1) > 0) { + SDL_PrivateSensorUpdate(sensor, event.data, SDL_arraysize(event.data)); + } + } +} + +static void +SDL_ANDROID_SensorClose(SDL_Sensor *sensor) +{ + if (sensor->hwdata) { + ASensorEventQueue_disableSensor(sensor->hwdata->eventqueue, sensor->hwdata->asensor); + ASensorManager_destroyEventQueue(SDL_sensor_manager, sensor->hwdata->eventqueue); + SDL_free(sensor->hwdata); + sensor->hwdata = NULL; + } +} + +static void +SDL_ANDROID_SensorQuit(void) +{ + if (SDL_sensors) { + SDL_free(SDL_sensors); + SDL_sensors = NULL; + SDL_sensors_count = 0; + } +} + +SDL_SensorDriver SDL_ANDROID_SensorDriver = +{ + SDL_ANDROID_SensorInit, + SDL_ANDROID_SensorGetCount, + SDL_ANDROID_SensorDetect, + SDL_ANDROID_SensorGetDeviceName, + SDL_ANDROID_SensorGetDeviceType, + SDL_ANDROID_SensorGetDeviceNonPortableType, + SDL_ANDROID_SensorGetDeviceInstanceID, + SDL_ANDROID_SensorOpen, + SDL_ANDROID_SensorUpdate, + SDL_ANDROID_SensorClose, + SDL_ANDROID_SensorQuit, +}; + +#endif /* SDL_SENSOR_ANDROID */ + +/* vi: set ts=4 sw=4 expandtab: */ |