ardupilot/libraries/AP_OSD/AP_OSD_Backend.cpp

33 lines
1.0 KiB
C++

/*
* This file 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 file 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_OSD/AP_OSD_Backend.h>
#include <AP_HAL/Util.h>
extern const AP_HAL::HAL& hal;
void AP_OSD_Backend::write(uint8_t x, uint8_t y, bool blink, const char *fmt, ...)
{
char buff[32];
va_list ap;
va_start(ap, fmt);
int res = hal.util->vsnprintf(buff, sizeof(buff), fmt, ap);
if (res < int(sizeof(buff))) {
write(x, y, buff, blink? AP_OSD_Backend::BLINK : 0);
}
va_end(ap);
}