diff options
Diffstat (limited to 'experimental/Intersection/QuarticRoot.cpp')
| -rw-r--r-- | experimental/Intersection/QuarticRoot.cpp | 35 |
1 files changed, 33 insertions, 2 deletions
diff --git a/experimental/Intersection/QuarticRoot.cpp b/experimental/Intersection/QuarticRoot.cpp index ea786e4407..061098a598 100644 --- a/experimental/Intersection/QuarticRoot.cpp +++ b/experimental/Intersection/QuarticRoot.cpp @@ -45,6 +45,37 @@ int reducedQuarticRoots(const double t4, const double t3, const double t2, const SkDebugf("%s\n", str); #endif #endif +#if 0 && SK_DEBUG + bool t4Or = approximately_zero_when_compared_to(t4, t0) // 0 is one root + || approximately_zero_when_compared_to(t4, t1) + || approximately_zero_when_compared_to(t4, t2); + bool t4And = approximately_zero_when_compared_to(t4, t0) // 0 is one root + && approximately_zero_when_compared_to(t4, t1) + && approximately_zero_when_compared_to(t4, t2); + if (t4Or != t4And) { + SkDebugf("%s t4 or and\n", __FUNCTION__); + } + bool t3Or = approximately_zero_when_compared_to(t3, t0) + || approximately_zero_when_compared_to(t3, t1) + || approximately_zero_when_compared_to(t3, t2); + bool t3And = approximately_zero_when_compared_to(t3, t0) + && approximately_zero_when_compared_to(t3, t1) + && approximately_zero_when_compared_to(t3, t2); + if (t3Or != t3And) { + SkDebugf("%s t3 or and\n", __FUNCTION__); + } + bool t0Or = approximately_zero_when_compared_to(t0, t1) // 0 is one root + && approximately_zero_when_compared_to(t0, t2) + && approximately_zero_when_compared_to(t0, t3) + && approximately_zero_when_compared_to(t0, t4); + bool t0And = approximately_zero_when_compared_to(t0, t1) // 0 is one root + && approximately_zero_when_compared_to(t0, t2) + && approximately_zero_when_compared_to(t0, t3) + && approximately_zero_when_compared_to(t0, t4); + if (t0Or != t0And) { + SkDebugf("%s t0 or and\n", __FUNCTION__); + } +#endif if (approximately_zero_when_compared_to(t4, t0) // 0 is one root && approximately_zero_when_compared_to(t4, t1) && approximately_zero_when_compared_to(t4, t2)) { @@ -57,8 +88,8 @@ int reducedQuarticRoots(const double t4, const double t3, const double t2, const return cubicRootsReal(t3, t2, t1, t0, roots); } } - if (approximately_zero_when_compared_to(t0, t1) // 0 is one root - && approximately_zero_when_compared_to(t0, t2) + if ((approximately_zero_when_compared_to(t0, t1) || approximately_zero(t1))// 0 is one root + // && approximately_zero_when_compared_to(t0, t2) && approximately_zero_when_compared_to(t0, t3) && approximately_zero_when_compared_to(t0, t4)) { int num = cubicRootsReal(t4, t3, t2, t1, roots); |