78 int SkFindUnitQuadRoots(SkScalar A, SkScalar B, SkScalar C, SkScalar roots[2]) {  in SkFindUnitQuadRoots()
79     SkASSERT(roots);  in SkFindUnitQuadRoots()
82         return return_check_zero(valid_unit_divide(-C, B, roots));  in SkFindUnitQuadRoots()
85     SkScalar* r = roots;  in SkFindUnitQuadRoots()
101     if (r - roots == 2) {  in SkFindUnitQuadRoots()
102         if (roots[0] > roots[1]) {  in SkFindUnitQuadRoots()
104             swap(roots[0], roots[1]);  in SkFindUnitQuadRoots()
105         } else if (roots[0] == roots[1]) { // nearly-equal?  in SkFindUnitQuadRoots()
109     return return_check_zero((int)(r - roots));  in SkFindUnitQuadRoots()
686     int         roots = SkFindCubicExtrema(src[0].fY, src[1].fY, src[2].fY,  in SkChopCubicAtYExtrema()  local
689     SkChopCubicAt(src, dst, tValues, roots);  in SkChopCubicAtYExtrema()
690     if (dst && roots > 0) {  in SkChopCubicAtYExtrema()
693         if (roots == 2) {  in SkChopCubicAtYExtrema()
697     return roots;  in SkChopCubicAtYExtrema()
702     int         roots = SkFindCubicExtrema(src[0].fX, src[1].fX, src[2].fX,  in SkChopCubicAtXExtrema()  local
705     SkChopCubicAt(src, dst, tValues, roots);  in SkChopCubicAtXExtrema()
706     if (dst && roots > 0) {  in SkChopCubicAtXExtrema()
709         if (roots == 2) {  in SkChopCubicAtXExtrema()
713     return roots;  in SkChopCubicAtXExtrema()
1054     SkScalar roots[3];  in SkChopCubicAtMaxCurvature()  local
1055     int rootCount = SkFindCubicMaxCurvature(src, roots);  in SkChopCubicAtMaxCurvature()
1060         if (0 < roots[i] && roots[i] < 1) {  in SkChopCubicAtMaxCurvature()
1061             tValues[count++] = roots[i];  in SkChopCubicAtMaxCurvature()
1117     int roots = SkFindCubicMaxCurvature(src, maxCurvature);  in SkFindCubicCusp()  local
1118     for (int index = 0; index < roots; ++index) {  in SkFindCubicCusp()
1140 typedef int (SkDCubic::*InterceptProc)(double intercept, double roots[3]) const;
1145     double roots[3];  in cubic_dchop_at_intercept()  local
1146     int count = (cubic.set(src).*method)(intercept, roots);  in cubic_dchop_at_intercept()
1148         SkDCubicPair pair = cubic.chopAt(roots[0]);  in cubic_dchop_at_intercept()
1212     int roots = SkFindUnitQuadRoots(coeff[0], coeff[1], coeff[2], tValues);  in conic_find_extrema()  local
1213     SkASSERT(0 == roots || 1 == roots);  in conic_find_extrema()
1215     if (1 == roots) {  in conic_find_extrema()