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xash3d-fwgs/engine/platform/sdl2/sensor_sdl2.c

104 lines
2.1 KiB
C

/*
sensor_sdl2.c - SDL2 sensor handling
Copyright (C) 2026 Xash3D FWGS contributors
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
*/
#include <SDL.h>
#include "common.h"
#include "input.h"
#include "platform_sdl2.h"
#if SDL_VERSION_ATLEAST( 2, 0, 14 )
static SDL_SensorID g_system_gyro_id = -1;
static SDL_Sensor *g_system_gyro;
/*
==============
SDLash_InitSensors
==============
*/
void SDLash_InitSensors( void )
{
if( SDL_InitSubSystem( SDL_INIT_SENSOR ) == 0 )
{
int num_sensors = SDL_NumSensors();
for( int i = 0; i < num_sensors; i++ )
{
if( SDL_SensorGetDeviceType( i ) == SDL_SENSOR_GYRO )
{
g_system_gyro = SDL_SensorOpen( i );
if( g_system_gyro )
{
g_system_gyro_id = SDL_SensorGetInstanceID( g_system_gyro );
Con_Printf( "SDL: Opened built-in gyroscope: %s\n", SDL_SensorGetName( g_system_gyro ) );
break;
}
}
}
}
else
{
Con_Reportf( S_ERROR "Failed to init SDL Sensor subsystem: %s\n", SDL_GetError() );
}
}
/*
==============
SDLash_ShutdownSensors
==============
*/
void SDLash_ShutdownSensors( void )
{
if( g_system_gyro )
{
SDL_SensorClose( g_system_gyro );
g_system_gyro = NULL;
g_system_gyro_id = -1;
}
SDL_QuitSubSystem( SDL_INIT_SENSOR );
}
/*
==============
SDLash_GyroIsAvailable
==============
*/
qboolean SDLash_GyroIsAvailable( void )
{
return ( g_system_gyro != NULL );
}
/*
==============
SDLash_SensorUpdate
==============
*/
void SDLash_SensorUpdate( SDL_SensorEvent sensor )
{
if( sensor.which == g_system_gyro_id )
{
IN_GyroEvent( sensor.data );
}
}
#else
void SDLash_InitSensors( void ) { }
void SDLash_ShutdownSensors( void ) { }
qboolean SDLash_GyroIsAvailable( void ) { return false; }
#endif