LineQuadraticIntersections(const SkDQuad& q)
: fQuad(q)
SkDEBUGPARAMS(fLine(nullptr))
SkDEBUGPARAMS(fIntersections(nullptr))
SkDEBUGPARAMS(fAllowNear(false)) {
}
void allowNear(bool allow) {
fAllowNear = allow;
}
void checkCoincident() {
int last = fIntersections->used() - 1;
for (int index = 0; index < last; ) {
double quadMidT = ((*fIntersections)[0][index] + (*fIntersections)[0][index + 1]) / 2;
SkDPoint quadMidPt = fQuad.ptAtT(quadMidT);
double t = fLine->nearPoint(quadMidPt, nullptr);
if (t < 0) {
++index;
continue;
}
if (fIntersections->isCoincident(index)) {
fIntersections->removeOne(index);
--last;
} else if (fIntersections->isCoincident(index + 1)) {
fIntersections->removeOne(index + 1);
--last;
} else {
fIntersections->setCoincident(index++);
}
fIntersections->setCoincident(index);
}
}
void drawMeshf(float *mesh_POINT, int *mesh_LINE, int *mesh_COLOR,
int *mesh_LINEDATSZ, int mesh_MESHCNT, int bgColor, struct rendrInfo rI)
{
int sidesNum;
int pt1, pt2;
int pt3, pt4;
int color;
int colorCnt = 0;
int lineCnt = 0;
while (lineCnt < mesh_LINEDATSZ[mesh_MESHCNT-1])
{
sidesNum = mesh_LINE[lineCnt];
color = mesh_COLOR[colorCnt];
if (sidesNum == 2)
{
pt1 = mesh_LINE[lineCnt+1] * 3;
pt2 = mesh_LINE[lineCnt+2] * 3;
fLine(mesh_POINT[pt1], mesh_POINT[pt1+1], mesh_POINT[pt1+2],
mesh_POINT[pt2], mesh_POINT[pt2+1], mesh_POINT[pt2+2], color, bgColor, rI);
lineCnt = lineCnt + 3;
colorCnt++;
}
if (sidesNum == 3)
{
pt1 = mesh_LINE[lineCnt+1] * 3;
pt2 = mesh_LINE[lineCnt+2] * 3;
pt3 = mesh_LINE[lineCnt+3] * 3;
fLine(mesh_POINT[pt1], mesh_POINT[pt1+1], mesh_POINT[pt1+2],
mesh_POINT[pt2], mesh_POINT[pt2+1], mesh_POINT[pt2+2], color, bgColor, rI);
fLine(mesh_POINT[pt2], mesh_POINT[pt2+1], mesh_POINT[pt2+2],
mesh_POINT[pt3], mesh_POINT[pt3+1], mesh_POINT[pt3+2], color, bgColor, rI);
fLine(mesh_POINT[pt3], mesh_POINT[pt3+1], mesh_POINT[pt3+2],
mesh_POINT[pt1], mesh_POINT[pt1+1], mesh_POINT[pt1+2], color, bgColor, rI);
lineCnt = lineCnt + 4;
colorCnt++;
}
if (sidesNum == 4)
{
pt1 = mesh_LINE[lineCnt+1] * 3;
pt2 = mesh_LINE[lineCnt+2] * 3;
pt3 = mesh_LINE[lineCnt+3] * 3;
pt4 = mesh_LINE[lineCnt+4] * 3;
fLine(mesh_POINT[pt1], mesh_POINT[pt1+1], mesh_POINT[pt1+2],
mesh_POINT[pt2], mesh_POINT[pt2+1], mesh_POINT[pt2+2], color, bgColor, rI);
fLine(mesh_POINT[pt2], mesh_POINT[pt2+1], mesh_POINT[pt2+2],
mesh_POINT[pt3], mesh_POINT[pt3+1], mesh_POINT[pt3+2], color, bgColor, rI);
fLine(mesh_POINT[pt3], mesh_POINT[pt3+1], mesh_POINT[pt3+2],
mesh_POINT[pt4], mesh_POINT[pt4+1], mesh_POINT[pt4+2], color, bgColor, rI);
fLine(mesh_POINT[pt4], mesh_POINT[pt4+1], mesh_POINT[pt4+2],
mesh_POINT[pt1], mesh_POINT[pt1+1], mesh_POINT[pt1+2], color, bgColor, rI);
lineCnt = lineCnt + 5;
colorCnt++;
}
}
}
