add more conservative check for wayward divide
When the parallel stroke to the curve can't be computed from
the intersection of the tangent lines, as straight line connects
the two points instead. Allow the intersection to succeed unless
the ratio isn't finite or the contribution of (1 - ratio) isn't
significant.
R=reed@google.com,fmalita@chromium.org
BUG=skia:4603
Review URL: https://codereview.chromium.org/1484873003
diff --git a/gm/strokes.cpp b/gm/strokes.cpp
index bd39382..aa2db9c 100644
--- a/gm/strokes.cpp
+++ b/gm/strokes.cpp
@@ -193,6 +193,22 @@
typedef skiagm::GM INHERITED;
};
+DEF_SIMPLE_GM(CubicStroke, canvas, 384, 384) {
+ SkPaint p;
+ p.setAntiAlias(true);
+ p.setStyle(SkPaint::kStroke_Style);
+ p.setStrokeWidth(1.0720f);
+ SkPath path;
+ path.moveTo(-6000,-6000);
+ path.cubicTo(-3500,5500,-500,5500,2500,-6500);
+ canvas->drawPath(path, p);
+ p.setStrokeWidth(1.0721f);
+ canvas->translate(10, 10);
+ canvas->drawPath(path, p);
+ p.setStrokeWidth(1.0722f);
+ canvas->translate(10, 10);
+ canvas->drawPath(path, p);
+}
class Strokes2GM : public skiagm::GM {
SkPath fPath;