SkPath::Verb SkReduceOrder::Quad(const SkPoint a[3], SkPoint* reducePts) {
SkDQuad quad;
quad.set(a);
SkReduceOrder reducer;
int order = reducer.reduce(quad);
if (order == 2) { // quad became line
for (int index = 0; index < order; ++index) {
*reducePts++ = reducer.fLine[index].asSkPoint();
}
}
return SkPathOpsPointsToVerb(order - 1);
}
SkPath::Verb SkReduceOrder::Cubic(const SkPoint a[4], SkPoint* reducePts) {
SkDCubic cubic;
cubic.set(a);
SkReduceOrder reducer;
int order = reducer.reduce(cubic, kAllow_Quadratics);
if (order == 2 || order == 3) { // cubic became line or quad
for (int index = 0; index < order; ++index) {
*reducePts++ = reducer.fQuad[index].asSkPoint();
}
}
return SkPathOpsPointsToVerb(order - 1);
}
SkPath::Verb SkReduceOrder::Cubic(const SkPoint a[4], SkPoint* reducePts) {
if (SkDPoint::ApproximatelyEqual(a[0], a[1]) && SkDPoint::ApproximatelyEqual(a[0], a[2])
&& SkDPoint::ApproximatelyEqual(a[0], a[3])) {
reducePts[0] = a[0];
return SkPath::kMove_Verb;
}
SkDCubic cubic;
cubic.set(a);
SkReduceOrder reducer;
int order = reducer.reduce(cubic, kAllow_Quadratics);
if (order == 2 || order == 3) { // cubic became line or quad
for (int index = 0; index < order; ++index) {
*reducePts++ = reducer.fQuad[index].asSkPoint();
}
}
return SkPathOpsPointsToVerb(order - 1);
}