87 int SkFindUnitQuadRoots(SkScalar A, SkScalar B, SkScalar C, SkScalar roots[2])  in SkFindUnitQuadRoots()
89     SkASSERT(roots);  in SkFindUnitQuadRoots()
92         return valid_unit_divide(-C, B, roots);  in SkFindUnitQuadRoots()
94     SkScalar* r = roots;  in SkFindUnitQuadRoots()
116     if (r - roots == 2)  in SkFindUnitQuadRoots()
118         if (roots[0] > roots[1])  in SkFindUnitQuadRoots()
119             SkTSwap<SkScalar>(roots[0], roots[1]);  in SkFindUnitQuadRoots()
120         else if (roots[0] == roots[1])  // nearly-equal?  in SkFindUnitQuadRoots()
123     return (int)(r - roots);  in SkFindUnitQuadRoots()
130 static int Sk64FindFixedQuadRoots(const Sk64& A, const Sk64& B, const Sk64& C, SkFixed roots[2])  in Sk64FindFixedQuadRoots()
139 …SkFindUnitQuadRoots(A.getShiftRight(shift), B.getShiftRight(shift), C.getShiftRight(shift), roots);  in Sk64FindFixedQuadRoots()
531 void SkChopCubicAt(const SkPoint src[4], SkPoint dst[], const SkScalar tValues[], int roots)  in SkChopCubicAt()  argument
535         for (int i = 0; i < roots - 1; i++)  in SkChopCubicAt()
546         if (roots == 0) // nothing to chop  in SkChopCubicAt()
553             for (int i = 0; i < roots; i++)  in SkChopCubicAt()
556                 if (i == roots - 1)  in SkChopCubicAt()
615     int         roots = SkFindCubicExtrema(src[0].fY, src[1].fY, src[2].fY, src[3].fY, tValues);  in SkChopCubicAtYExtrema()  local
617     SkChopCubicAt(src, dst, tValues, roots);  in SkChopCubicAtYExtrema()
618     if (dst && roots > 0)  in SkChopCubicAtYExtrema()
622         if (roots == 2)  in SkChopCubicAtYExtrema()
625     return roots;  in SkChopCubicAtYExtrema()
775     SkScalar*   roots = tValues;  in solve_cubic_polynomial()  local
786             *roots++ = r;  in solve_cubic_polynomial()
790             *roots++ = r;  in solve_cubic_polynomial()
794             *roots++ = r;  in solve_cubic_polynomial()
797         bubble_sort(tValues, (int)(roots - tValues));  in solve_cubic_polynomial()
811             *roots++ = r;  in solve_cubic_polynomial()
814     return (int)(roots - tValues);  in solve_cubic_polynomial()
917     SkScalar    roots[2];  in quad_solve()  local
918     int         count = SkFindUnitQuadRoots(A, B, C, roots);  in quad_solve()
921     return count == 1 ? roots[0] : 0;  in quad_solve()