270     void setRayPts(const SkPoint& tPt, SkVector* dxy, SkPoint* onPt, SkPoint* tangent) const;
534     SkVector dxy = lineEnd - lineStart;  in pt_to_line()  local
536     SkScalar numer = dxy.dot(ab0);  in pt_to_line()
537     SkScalar denom = dxy.dot(dxy);  in pt_to_line()
799 void SkPathStroker::setRayPts(const SkPoint& tPt, SkVector* dxy, SkPoint* onPt,  in setRayPts()  argument
801     if (!dxy->setLength(fRadius)) {  in setRayPts()
802         dxy->set(fRadius, 0);  in setRayPts()
805     onPt->fX = tPt.fX + axisFlip * dxy->fY;  in setRayPts()
806     onPt->fY = tPt.fY - axisFlip * dxy->fX;  in setRayPts()
808         tangent->fX = onPt->fX + dxy->fX;  in setRayPts()
809         tangent->fY = onPt->fY + dxy->fY;  in setRayPts()
817     SkVector dxy;  in conicPerpRay()  local
818     conic.evalAt(t, tPt, &dxy);  in conicPerpRay()
819     if (dxy.fX == 0 && dxy.fY == 0) {  in conicPerpRay()
820         dxy = conic.fPts[2] - conic.fPts[0];  in conicPerpRay()
822     this->setRayPts(*tPt, &dxy, onPt, tangent);  in conicPerpRay()
845     SkVector dxy;  in cubicPerpRay()  local
847     SkEvalCubicAt(cubic, t, tPt, &dxy, nullptr);  in cubicPerpRay()
848     if (dxy.fX == 0 && dxy.fY == 0) {  in cubicPerpRay()
851             dxy = cubic[2] - cubic[0];  in cubicPerpRay()
853             dxy = cubic[3] - cubic[1];  in cubicPerpRay()
858             dxy = chopped[3] - chopped[2];  in cubicPerpRay()
859             if (dxy.fX == 0 && dxy.fY == 0) {  in cubicPerpRay()
860                 dxy = chopped[3] - chopped[1];  in cubicPerpRay()
864         if (dxy.fX == 0 && dxy.fY == 0) {  in cubicPerpRay()
865             dxy = cPts[3] - cPts[0];  in cubicPerpRay()
868     setRayPts(*tPt, &dxy, onPt, tangent);  in cubicPerpRay()
896     SkVector dxy;  in quadPerpRay()  local
897     SkEvalQuadAt(quad, t, tPt, &dxy);  in quadPerpRay()
898     if (dxy.fX == 0 && dxy.fY == 0) {  in quadPerpRay()
899         dxy = quad[2] - quad[0];  in quadPerpRay()
901     setRayPts(*tPt, &dxy, onPt, tangent);  in quadPerpRay()