void add_option_f(char* text, float* ptr, float min, float max, float increment_s = 0.1, float increment_l = 1) {
add_option_e(text, string(round_(*ptr)), ptr, min, max - (1 - increment_s), increment_s, increment_l);
}
void draw_line(
unsigned int x1, unsigned int y1,
unsigned int x2, unsigned int y2,
uint8_t r,
uint8_t g,
uint8_t b )
{
double dx = (double)x2 - (double)x1;
double dy = (double)y2 - (double)y1;
if ( fabs(dx) > fabs(dy) )
{
if ( x2 < x1 )
{
swap_(x1, x2);
swap_(y1, y2);
}
double gradient = dy / dx;
double xend = round_(x1);
double yend = y1 + gradient*(xend - x1);
double xgap = rfpart_(x1 + 0.5);
int xpxl1 = xend;
int ypxl1 = ipart_(yend);
dla_plot(xpxl1, ypxl1, r,g,b,rfpart_(yend)*xgap);
dla_plot(xpxl1, ypxl1+1, r,g,b,fpart_(yend)*xgap);
double intery = yend + gradient;
xend = round_(x2);
yend = y2 + gradient*(xend - x2);
xgap = fpart_(x2+0.5);
int xpxl2 = xend;
int ypxl2 = ipart_(yend);
dla_plot(xpxl2, ypxl2, r,g,b,rfpart_(yend) * xgap);
dla_plot(xpxl2, ypxl2 + 1, r,g,b,fpart_(yend) * xgap);
int x;
for(x=xpxl1+1; x <= (xpxl2-1); x++)
{
dla_plot(x, ipart_(intery), r,g,b,rfpart_(intery));
dla_plot(x, ipart_(intery) + 1, r,g,b,fpart_(intery));
intery += gradient;
}
}
else
{
if ( y2 < y1 )
{
swap_(x1, x2);
swap_(y1, y2);
}
double gradient = dx / dy;
double yend = round_(y1);
double xend = x1 + gradient*(yend - y1);
double ygap = rfpart_(y1 + 0.5);
int ypxl1 = yend;
int xpxl1 = ipart_(xend);
dla_plot(xpxl1, ypxl1, r,g,b,rfpart_(xend)*ygap);
dla_plot(xpxl1, ypxl1+1, r,g,b,fpart_(xend)*ygap);
double interx = xend + gradient;
yend = round_(y2);
xend = x2 + gradient*(yend - y2);
ygap = fpart_(y2+0.5);
int ypxl2 = yend;
int xpxl2 = ipart_(xend);
dla_plot(xpxl2, ypxl2, r,g,b,rfpart_(xend) * ygap);
dla_plot(xpxl2, ypxl2 + 1, r,g,b,fpart_(xend) * ygap);
int y;
for(y=ypxl1+1; y <= (ypxl2-1); y++)
{
dla_plot(ipart_(interx), y, r,g,b,rfpart_(interx));
dla_plot(ipart_(interx) + 1, y, r,g,b,fpart_(interx));
interx += gradient;
}
}
}
