+++ /dev/null
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2022 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.
-*/
-
-/**
- * \file SDL_sensor.h
- *
- * Include file for SDL sensor event handling
- *
- */
-
-#ifndef SDL_sensor_h_
-#define SDL_sensor_h_
-
-#include "SDL_stdinc.h"
-#include "SDL_error.h"
-
-#include "begin_code.h"
-/* Set up for C function definitions, even when using C++ */
-#ifdef __cplusplus
-/* *INDENT-OFF* */
-extern "C" {
-/* *INDENT-ON* */
-#endif
-
-/**
- * \brief SDL_sensor.h
- *
- * In order to use these functions, SDL_Init() must have been called
- * with the ::SDL_INIT_SENSOR flag. This causes SDL to scan the system
- * for sensors, and load appropriate drivers.
- */
-
-struct _SDL_Sensor;
-typedef struct _SDL_Sensor SDL_Sensor;
-
-/**
- * This is a unique ID for a sensor for the time it is connected to the system,
- * and is never reused for the lifetime of the application.
- *
- * The ID value starts at 0 and increments from there. The value -1 is an invalid ID.
- */
-typedef Sint32 SDL_SensorID;
-
-/* The different sensors defined by SDL
- *
- * Additional sensors may be available, using platform dependent semantics.
- *
- * Hare are the additional Android sensors:
- * https://developer.android.com/reference/android/hardware/SensorEvent.html#values
- */
-typedef enum
-{
- SDL_SENSOR_INVALID = -1, /**< Returned for an invalid sensor */
- SDL_SENSOR_UNKNOWN, /**< Unknown sensor type */
- SDL_SENSOR_ACCEL, /**< Accelerometer */
- SDL_SENSOR_GYRO /**< Gyroscope */
-} SDL_SensorType;
-
-/**
- * Accelerometer sensor
- *
- * The accelerometer returns the current acceleration in SI meters per
- * second squared. This measurement includes the force of gravity, so
- * a device at rest will have an value of SDL_STANDARD_GRAVITY away
- * from the center of the earth.
- *
- * values[0]: Acceleration on the x axis
- * values[1]: Acceleration on the y axis
- * values[2]: Acceleration on the z axis
- *
- * For phones held in portrait mode and game controllers held in front of you,
- * the axes are defined as follows:
- * -X ... +X : left ... right
- * -Y ... +Y : bottom ... top
- * -Z ... +Z : farther ... closer
- *
- * The axis data is not changed when the phone is rotated.
- *
- * \sa SDL_GetDisplayOrientation()
- */
-#define SDL_STANDARD_GRAVITY 9.80665f
-
-/**
- * Gyroscope sensor
- *
- * The gyroscope returns the current rate of rotation in radians per second.
- * The rotation is positive in the counter-clockwise direction. That is,
- * an observer looking from a positive location on one of the axes would
- * see positive rotation on that axis when it appeared to be rotating
- * counter-clockwise.
- *
- * values[0]: Angular speed around the x axis (pitch)
- * values[1]: Angular speed around the y axis (yaw)
- * values[2]: Angular speed around the z axis (roll)
- *
- * For phones held in portrait mode and game controllers held in front of you,
- * the axes are defined as follows:
- * -X ... +X : left ... right
- * -Y ... +Y : bottom ... top
- * -Z ... +Z : farther ... closer
- *
- * The axis data is not changed when the phone or controller is rotated.
- *
- * \sa SDL_GetDisplayOrientation()
- */
-
-/* Function prototypes */
-
-/**
- * Locking for multi-threaded access to the sensor API
- *
- * If you are using the sensor API or handling events from multiple threads
- * you should use these locking functions to protect access to the sensors.
- *
- * In particular, you are guaranteed that the sensor list won't change, so the
- * API functions that take a sensor index will be valid, and sensor events
- * will not be delivered.
- *
- * \since This function is available since SDL 2.0.14.
- */
-extern DECLSPEC void SDLCALL SDL_LockSensors(void);
-extern DECLSPEC void SDLCALL SDL_UnlockSensors(void);
-
-/**
- * Count the number of sensors attached to the system right now.
- *
- * \returns the number of sensors detected.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC int SDLCALL SDL_NumSensors(void);
-
-/**
- * Get the implementation dependent name of a sensor.
- *
- * \param device_index The sensor to obtain name from
- * \returns the sensor name, or NULL if `device_index` is out of range.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC const char *SDLCALL SDL_SensorGetDeviceName(int device_index);
-
-/**
- * Get the type of a sensor.
- *
- * \param device_index The sensor to get the type from
- * \returns the SDL_SensorType, or `SDL_SENSOR_INVALID` if `device_index` is
- * out of range.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetDeviceType(int device_index);
-
-/**
- * Get the platform dependent type of a sensor.
- *
- * \param device_index The sensor to check
- * \returns the sensor platform dependent type, or -1 if `device_index` is out
- * of range.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC int SDLCALL SDL_SensorGetDeviceNonPortableType(int device_index);
-
-/**
- * Get the instance ID of a sensor.
- *
- * \param device_index The sensor to get instance id from
- * \returns the sensor instance ID, or -1 if `device_index` is out of range.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetDeviceInstanceID(int device_index);
-
-/**
- * Open a sensor for use.
- *
- * \param device_index The sensor to open
- * \returns an SDL_Sensor sensor object, or NULL if an error occurred.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorOpen(int device_index);
-
-/**
- * Return the SDL_Sensor associated with an instance id.
- *
- * \param instance_id The sensor from instance id
- * \returns an SDL_Sensor object.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_Sensor *SDLCALL SDL_SensorFromInstanceID(SDL_SensorID instance_id);
-
-/**
- * Get the implementation dependent name of a sensor
- *
- * \param sensor The SDL_Sensor object
- * \returns the sensor name, or NULL if `sensor` is NULL.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC const char *SDLCALL SDL_SensorGetName(SDL_Sensor *sensor);
-
-/**
- * Get the type of a sensor.
- *
- * \param sensor The SDL_Sensor object to inspect
- * \returns the SDL_SensorType type, or `SDL_SENSOR_INVALID` if `sensor` is
- * NULL.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_SensorType SDLCALL SDL_SensorGetType(SDL_Sensor *sensor);
-
-/**
- * Get the platform dependent type of a sensor.
- *
- * \param sensor The SDL_Sensor object to inspect
- * \returns the sensor platform dependent type, or -1 if `sensor` is NULL.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC int SDLCALL SDL_SensorGetNonPortableType(SDL_Sensor *sensor);
-
-/**
- * Get the instance ID of a sensor.
- *
- * \param sensor The SDL_Sensor object to inspect
- * \returns the sensor instance ID, or -1 if `sensor` is NULL.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC SDL_SensorID SDLCALL SDL_SensorGetInstanceID(SDL_Sensor *sensor);
-
-/**
- * Get the current state of an opened sensor.
- *
- * The number of values and interpretation of the data is sensor dependent.
- *
- * \param sensor The SDL_Sensor object to query
- * \param data A pointer filled with the current sensor state
- * \param num_values The number of values to write to data
- * \returns 0 or -1 if an error occurred.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC int SDLCALL SDL_SensorGetData(SDL_Sensor * sensor, float *data, int num_values);
-
-/**
- * Close a sensor previously opened with SDL_SensorOpen().
- *
- * \param sensor The SDL_Sensor object to close
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC void SDLCALL SDL_SensorClose(SDL_Sensor * sensor);
-
-/**
- * Update the current state of the open sensors.
- *
- * This is called automatically by the event loop if sensor events are
- * enabled.
- *
- * This needs to be called from the thread that initialized the sensor
- * subsystem.
- *
- * \since This function is available since SDL 2.0.9.
- */
-extern DECLSPEC void SDLCALL SDL_SensorUpdate(void);
-
-
-/* Ends C function definitions when using C++ */
-#ifdef __cplusplus
-/* *INDENT-OFF* */
-}
-/* *INDENT-ON* */
-#endif
-#include "close_code.h"
-
-#endif /* SDL_sensor_h_ */
-
-/* vi: set ts=4 sw=4 expandtab: */
projects / xonotic / darkplaces.git / blobdiff