ardupilot/libraries/AP_Notify/SITL_SFML_LED.cpp

95 lines
2.4 KiB
C++

/*
Copyright (C) 2019 Peter Barker. All rights reserved.
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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <AP_HAL/AP_HAL.h>
#include <AP_Notify/AP_Notify.h>
#include <stdio.h>
#include <unistd.h>
#ifdef WITH_SITL_RGBLED
#include "SITL_SFML_LED.h"
SITL_SFML_LED::SITL_SFML_LED():
RGBLed((uint8_t)brightness::LED_OFF,
(uint8_t)brightness::LED_HIGH,
(uint8_t)brightness::LED_MEDIUM,
(uint8_t)brightness::LED_LOW)
{
}
void SITL_SFML_LED::update_thread(void)
{
sf::RenderWindow *w;
{
WITH_SEMAPHORE(AP::notify().sf_window_mutex);
w = new sf::RenderWindow(sf::VideoMode(width, height), "LED");
}
if (!w) {
AP_HAL::panic("Unable to create RGBLed window");
}
while (true) {
{
WITH_SEMAPHORE(AP::notify().sf_window_mutex);
sf::Event event;
while (w->pollEvent(event)) {
if (event.type == sf::Event::Closed) {
w->close();
break;
}
}
if (!w->isOpen()) {
break;
}
const uint32_t colour = red<<16 | green<<8 | blue;
if (colour != last_colour) {
last_colour = colour;
w->clear(sf::Color(red, green, blue, 255));
w->display();
}
}
usleep(10000);
}
}
// trampoline for update thread
void *SITL_SFML_LED::update_thread_start(void *obj)
{
((SITL_SFML_LED *)obj)->update_thread();
return nullptr;
}
bool SITL_SFML_LED::hw_init()
{
pthread_create(&thread, NULL, update_thread_start, this);
return true;
}
bool SITL_SFML_LED::hw_set_rgb(uint8_t _red, uint8_t _green, uint8_t _blue)
{
red = _red;
green = _green;
blue = _blue;
return true;
}
#endif