285                                     const SkVector& dc,  in is_point_within_cubic_tangents()  argument
303     SkScalar dpXdc = dp.cross(dc);  in is_point_within_cubic_tangents()
326     SkVector dc = p[2] - p[3];  in convert_noninflect_cubic_to_quads()  local
329         if (SkPointPriv::LengthSqd(dc) < SK_ScalarNearlyZero) {  in convert_noninflect_cubic_to_quads()
338     if (SkPointPriv::LengthSqd(dc) < SK_ScalarNearlyZero) {  in convert_noninflect_cubic_to_quads()
339         dc = p[1] - p[3];  in convert_noninflect_cubic_to_quads()
346     dc.scale(kLengthScale);  in convert_noninflect_cubic_to_quads()
350     SkPoint c1 = p[3] + dc;  in convert_noninflect_cubic_to_quads()
391     SkVector dc = p[2] - p[3];  in convert_noninflect_cubic_to_quads_with_constraint()  local
394         if (SkPointPriv::LengthSqd(dc) < SK_ScalarNearlyZero) {  in convert_noninflect_cubic_to_quads_with_constraint()
403     if (SkPointPriv::LengthSqd(dc) < SK_ScalarNearlyZero) {  in convert_noninflect_cubic_to_quads_with_constraint()
404         dc = p[1] - p[3];  in convert_noninflect_cubic_to_quads_with_constraint()
415     bool doQuads = SkPointPriv::LengthSqd(dc) < SK_ScalarNearlyZero ||  in convert_noninflect_cubic_to_quads_with_constraint()
425             SkScalar detDCSqd = dc.cross(da);  in convert_noninflect_cubic_to_quads_with_constraint()
435         SkPoint c = p[3] + dc;  in convert_noninflect_cubic_to_quads_with_constraint()
440         if (SkVector::DotProduct(da, dc) < 0 || SkVector::DotProduct(ab, da) > 0) {  in convert_noninflect_cubic_to_quads_with_constraint()
461     dc.scale(kLengthScale);  in convert_noninflect_cubic_to_quads_with_constraint()
465     SkVector c1 = p[3] + dc;  in convert_noninflect_cubic_to_quads_with_constraint()
472         if (!is_point_within_cubic_tangents(p[0], ab, dc, p[3], dir, cAvg)) {  in convert_noninflect_cubic_to_quads_with_constraint()
476             dc = SkPointPriv::MakeOrthog(dc);  in convert_noninflect_cubic_to_quads_with_constraint()
477             SkScalar z1 = -dc.dot(p[3]);  in convert_noninflect_cubic_to_quads_with_constraint()
478             cAvg.fX = ab.fY * z1 - z0 * dc.fY;  in convert_noninflect_cubic_to_quads_with_constraint()
479             cAvg.fY = z0 * dc.fX - ab.fX * z1;  in convert_noninflect_cubic_to_quads_with_constraint()
480             SkScalar z = ab.fX * dc.fY - ab.fY * dc.fX;  in convert_noninflect_cubic_to_quads_with_constraint()