path ops near exact

src/pathops/SkPathOpsTypes.h

Index: src/pathops/SkPathOpsTypes.h
diff --git a/src/pathops/SkPathOpsTypes.h b/src/pathops/SkPathOpsTypes.h
index 20641d334538f759a188f84236231a370641a999..c988691e26899ee77cb80dd77cdb0f933e40c58b 100644
--- a/src/pathops/SkPathOpsTypes.h
+++ b/src/pathops/SkPathOpsTypes.h
@@ -33,6 +33,11 @@ inline bool RoughlyEqualUlps(double A, double B) {
     return RoughlyEqualUlps(SkDoubleToScalar(A), SkDoubleToScalar(B));
 }
 
+bool AlmostBetweenUlps(float a, float b, float c);
+inline bool AlmostBetweenUlps(double A, double B, double C) {
+    return AlmostBetweenUlps(SkDoubleToScalar(A), SkDoubleToScalar(B), SkDoubleToScalar(C));
+}
+
 // FLT_EPSILON == 1.19209290E-07 == 1 / (2 ^ 23)
 // DBL_EPSILON == 2.22045e-16
 const double FLT_EPSILON_CUBED = FLT_EPSILON * FLT_EPSILON * FLT_EPSILON;
@@ -260,4 +265,8 @@ inline int SkDSideBit(double x) {
     return 1 << SKDSide(x);
 }
 
+inline double SkPinT(double t) {
+    return precisely_less_than_zero(t) ? 0 : precisely_greater_than_one(t) ? 1 : t;
+}
+
 #endif