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Diffstat (limited to 'Source/external/SDL2/src/sensor/SDL_syssensor.h')
| -rw-r--r-- | Source/external/SDL2/src/sensor/SDL_syssensor.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/Source/external/SDL2/src/sensor/SDL_syssensor.h b/Source/external/SDL2/src/sensor/SDL_syssensor.h new file mode 100644 index 0000000..210577a --- /dev/null +++ b/Source/external/SDL2/src/sensor/SDL_syssensor.h @@ -0,0 +1,105 @@ +/* + 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. +*/ + +#ifndef SDL_syssensor_c_h_ +#define SDL_syssensor_c_h_ + +#include "SDL_config.h" + +/* This is the system specific header for the SDL sensor API */ + +#include "SDL_sensor.h" +#include "SDL_sensor_c.h" + +/* The SDL sensor structure */ +struct _SDL_Sensor +{ + SDL_SensorID instance_id; /* Device instance, monotonically increasing from 0 */ + char *name; /* Sensor name - system dependent */ + SDL_SensorType type; /* Type of the sensor */ + int non_portable_type; /* Platform dependent type of the sensor */ + + float data[16]; /* The current state of the sensor */ + + struct _SDL_SensorDriver *driver; + + struct sensor_hwdata *hwdata; /* Driver dependent information */ + + int ref_count; /* Reference count for multiple opens */ + + struct _SDL_Sensor *next; /* pointer to next sensor we have allocated */ +}; + +typedef struct _SDL_SensorDriver +{ + /* Function to scan the system for sensors. + * sensor 0 should be the system default sensor. + * This function should return 0, or -1 on an unrecoverable fatal error. + */ + int (*Init)(void); + + /* Function to return the number of sensors available right now */ + int (*GetCount)(void); + + /* Function to check to see if the available sensors have changed */ + void (*Detect)(void); + + /* Function to get the device-dependent name of a sensor */ + const char *(*GetDeviceName)(int device_index); + + /* Function to get the type of a sensor */ + SDL_SensorType (*GetDeviceType)(int device_index); + + /* Function to get the platform dependent type of a sensor */ + int (*GetDeviceNonPortableType)(int device_index); + + /* Function to get the current instance id of the sensor located at device_index */ + SDL_SensorID (*GetDeviceInstanceID)(int device_index); + + /* Function to open a sensor for use. + The sensor to open is specified by the device index. + It returns 0, or -1 if there is an error. + */ + int (*Open)(SDL_Sensor * sensor, int device_index); + + /* Function to update the state of a sensor - called as a device poll. + * This function shouldn't update the sensor structure directly, + * but instead should call SDL_PrivateSensorUpdate() to deliver events + * and update sensor device state. + */ + void (*Update)(SDL_Sensor * sensor); + + /* Function to close a sensor after use */ + void (*Close)(SDL_Sensor * sensor); + + /* Function to perform any system-specific sensor related cleanup */ + void (*Quit)(void); + +} SDL_SensorDriver; + +/* The available sensor drivers */ +extern SDL_SensorDriver SDL_ANDROID_SensorDriver; +extern SDL_SensorDriver SDL_COREMOTION_SensorDriver; +extern SDL_SensorDriver SDL_DUMMY_SensorDriver; + +#endif /* SDL_syssensor_c_h_ */ + +/* vi: set ts=4 sw=4 expandtab: */ |