| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2024 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_internal.h" |
| |
| #ifndef SDL_sensor_c_h_ |
| #define SDL_sensor_c_h_ |
| |
| #ifdef SDL_THREAD_SAFETY_ANALYSIS |
| extern SDL_Mutex *SDL_sensor_lock; |
| #endif |
| |
| struct SDL_SensorDriver; |
| |
| /* Useful functions and variables from SDL_sensor.c */ |
| |
| /* Initialization and shutdown functions */ |
| extern int SDL_InitSensors(void); |
| extern void SDL_QuitSensors(void); |
| |
| /* Return whether the sensor system is currently initialized */ |
| extern SDL_bool SDL_SensorsInitialized(void); |
| |
| /* Return whether the sensors are currently locked */ |
| extern SDL_bool SDL_SensorsLocked(void); |
| |
| /* Make sure we currently have the sensors locked */ |
| extern void SDL_AssertSensorsLocked(void) SDL_ASSERT_CAPABILITY(SDL_sensor_lock); |
| |
| extern void SDL_LockSensors(void) SDL_ACQUIRE(SDL_sensor_lock); |
| extern void SDL_UnlockSensors(void) SDL_RELEASE(SDL_sensor_lock); |
| |
| /* Function to return whether there are any sensors opened by the application */ |
| extern SDL_bool SDL_SensorsOpened(void); |
| |
| /* Update an individual sensor, used by gamepad sensor fusion */ |
| extern void SDL_UpdateSensor(SDL_Sensor *sensor); |
| |
| /* Internal event queueing functions */ |
| extern int SDL_SendSensorUpdate(Uint64 timestamp, SDL_Sensor *sensor, Uint64 sensor_timestamp, float *data, int num_values); |
| |
| #endif /* SDL_sensor_c_h_ */ |