| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2019 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: */ |