jtmm2/src/polarity.c

#include "polarity.h"
#include "level.h"

static int pol = 0;

int
polarity(void)
{
	return pol;
}

void
polarity_invert(void)
{
	pol = !pol;
	level_regen_visual_data(0);
}

void
polarity_reset(void)
{
	pol = 0;
}