shape ops work in progress
mostly working on cubic/cubic intersect
git-svn-id: http://skia.googlecode.com/svn/trunk@7266 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/Intersection/CubicUtilities.h b/experimental/Intersection/CubicUtilities.h
index 890ff00..6159472 100644
--- a/experimental/Intersection/CubicUtilities.h
+++ b/experimental/Intersection/CubicUtilities.h
@@ -10,15 +10,18 @@
#include "DataTypes.h"
#include "SkTDArray.h"
+double calcPrecision(const Cubic& cubic);
double cube_root(double x);
int cubic_to_quadratics(const Cubic& cubic, double precision,
SkTDArray<Quadratic>& quadratics);
+void cubic_to_quadratics(const Cubic& cubic, double precision, SkTDArray<double>& ts);
void coefficients(const double* cubic, double& A, double& B, double& C, double& D);
int cubicRoots(double A, double B, double C, double D, double t[3]);
+int cubicRootsX(double A, double B, double C, double D, double s[3]);
+void demote_cubic_to_quad(const Cubic& cubic, Quadratic& quad);
double derivativeAtT(const double* cubic, double t);
-// competing version that should produce same results
-double derivativeAtT_2(const double* cubic, double t);
void dxdy_at_t(const Cubic& , double t, double& x, double& y);
+int find_cubic_inflections(const Cubic& src, double tValues[]);
bool rotate(const Cubic& cubic, int zero, int index, Cubic& rotPath);
double secondDerivativeAtT(const double* cubic, double t);
void xy_at_t(const Cubic& , double t, double& x, double& y);