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- /**
- * Copyright (c) 2006-2022 LOVE Development Team
- *
- * 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.
- **/
- // LOVE
- #include "Sensor.h"
- // SDL
- #include <SDL.h>
- #include <SDL_sensor.h>
- namespace love
- {
- namespace sensor
- {
- namespace sdl
- {
- Sensor::Sensor()
- : sensors()
- {
- if (SDL_InitSubSystem(SDL_INIT_SENSOR) < 0)
- throw love::Exception("Could not initialize SDL sensor subsystem (%s)", SDL_GetError());
- }
- Sensor::~Sensor()
- {
- SDL_QuitSubSystem(SDL_INIT_SENSOR);
- }
- const char *Sensor::getName() const
- {
- return "love.sensor.sdl";
- }
- bool Sensor::isAvailable(SensorType type)
- {
- for (int i = 0; i < SDL_NumSensors(); i++)
- {
- if (convert(SDL_SensorGetDeviceType(i)) == type)
- return true;
- }
- return false;
- }
- bool Sensor::isEnabled(SensorType type)
- {
- return sensors[type]; // nullptr is default
- }
- void Sensor::setEnabled(SensorType type, bool enable)
- {
- if (sensors[type] && !enable)
- {
- SDL_SensorClose(sensors[type]);
- sensors[type] = nullptr;
- }
- else if (sensors[type] == nullptr && enable)
- {
- for (int i = 0; i < SDL_NumSensors(); i++)
- {
- if (convert(SDL_SensorGetDeviceType(i)) == type)
- {
- SDL_Sensor *sensorHandle = SDL_SensorOpen(i);
- if (sensorHandle == nullptr)
- {
- const char *name = nullptr;
- getConstant(type, name);
- throw love::Exception("Could not open \"%s\" SDL sensor (%s)", name, SDL_GetError());
- }
- sensors[type] = sensorHandle;
- }
- }
- }
- }
- std::vector<float> Sensor::getData(SensorType type)
- {
- if (sensors[type] == nullptr)
- {
- const char *name = nullptr;
- getConstant(type, name);
- throw love::Exception("\"%s\" sensor is not enabled", name);
- }
- std::vector<float> values;
- values.resize(3);
- SDL_SensorGetData(sensors[type], values.data(), 3);
- return values;
- }
- std::vector<void*> Sensor::getHandles()
- {
- std::vector<void*> nativeSensor;
- for (const std::pair<SensorType, SDL_Sensor*> &data: sensors)
- {
- if (data.second)
- nativeSensor.push_back(data.second);
- }
- return nativeSensor;
- }
- const char *Sensor::getSensorName(SensorType type)
- {
- if (sensors[type] == nullptr)
- {
- const char *name = nullptr;
- getConstant(type, name);
- throw love::Exception("\"%s\" sensor is not enabled", name);
- }
- return SDL_SensorGetName(sensors[type]);
- }
- Sensor::SensorType Sensor::convert(SDL_SensorType type)
- {
- switch (type)
- {
- case SDL_SENSOR_ACCEL:
- return SENSOR_ACCELEROMETER;
- case SDL_SENSOR_GYRO:
- return SENSOR_GYROSCOPE;
- default:
- return SENSOR_MAX_ENUM;
- }
- }
- }
- }
- }
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