void text_pix(unsigned char pix)
{
static unsigned char revs = REV_PER_MSG;
struct st *st = (struct st *)SHBSS;
if (pix == 0) {
unsigned char w;
if (revs-- == 0) {
revs = REV_PER_MSG;
if (lpm(&strings[++st->string]) == 0)
st->string = 0;
}
w = width(st->string);
st->strptr = strdata + st->string;
st->start = PPR/2 - w/2;
st->end = PPR/2 + w/2;
st->charleft = -CHRSPC;
}
if (pix < st->start || pix > st->end)
return;
if (st->charleft == -CHRSPC) {
st->charptr = chardata + lpm(st->strptr++);
st->charleft = lpm(st->charptr++);
}
if (st->charleft > 0)
set_led(lpm(st->charptr++) << 8, MAX_LVL);
st->charleft--;
}
static inline unsigned char width(unsigned char str)
{
const unsigned char *addr = strdata + str;
unsigned char width = 0;
unsigned char ch;
while((ch = lpm(addr++)) != 255)
width += lpm(chardata+ch) + CHRSPC;
return width;
}
static unsigned char len(unsigned char str)
{
unsigned char len = 0;
const unsigned char *addr = strdata + str;
while(lpm(addr++) != 255)
len++;
return len;
}
void checkInputNotAltered(const std::vector<Coordinate>& pt, int scaleFactor)
{
// save input points
std::vector<Coordinate> savePt = pt;
geos::algorithm::LineIntersector li;
PrecisionModel lpm(scaleFactor);
li.setPrecisionModel(&lpm);
li.computeIntersection(pt[0], pt[1], pt[2], pt[3]);
// check that input points are unchanged
for (int i = 0; i < 4; i++) {
ensure_equals(savePt[i], pt[i]);
}
}
