nc seal breaks simplify

This test has nearly coincident lines that are missorted.
The underlying bug is caused when a pair of curves
are coincident when reduced to line segments, but the
end points aren't detected.

The error was generated by running nanobench over all svg
sample data with the distance field patch installed.

TBR=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2440043003

Review-Url: https://codereview.chromium.org/2440043003

1 files changed, 47 insertions, 1 deletions

diff --git a/tests/PathOpsSimplifyTest.cpp b/tests/PathOpsSimplifyTest.cpp
index 83d82e96f2..ab6c81b215 100644
--- a/tests/PathOpsSimplifyTest.cpp
+++ b/tests/PathOpsSimplifyTest.cpp
@@ -5578,11 +5578,57 @@ path.close();
     testSimplify(reporter, path, filename);
 }
 
+static void simplifyTest_1(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x42bfefd4), SkBits2Float(0x42ef80ef));  // 95.9684f, 119.752f
+path.quadTo(SkBits2Float(0x42c26810), SkBits2Float(0x42e214b8), SkBits2Float(0x42cdcad5), SkBits2Float(0x42d82aa2));  // 97.2032f, 113.04f, 102.896f, 108.083f
+path.lineTo(SkBits2Float(0x42cdcb21), SkBits2Float(0x42d82a61));  // 102.897f, 108.083f
+path.quadTo(SkBits2Float(0x42d5e3c8), SkBits2Float(0x42d12140), SkBits2Float(0x42e20ee8), SkBits2Float(0x42cdc937));  // 106.945f, 104.565f, 113.029f, 102.893f
+path.lineTo(SkBits2Float(0x42e256e3), SkBits2Float(0x42cdbc92));  // 113.17f, 102.868f
+path.lineTo(SkBits2Float(0x42f5eadb), SkBits2Float(0x42cc2cb3));  // 122.959f, 102.087f
+path.lineTo(SkBits2Float(0x42f746a6), SkBits2Float(0x42cccf85));  // 123.638f, 102.405f
+path.quadTo(SkBits2Float(0x42fa586c), SkBits2Float(0x42d126c4), SkBits2Float(0x42f6c657), SkBits2Float(0x42d5d315));  // 125.173f, 104.576f, 123.387f, 106.912f
+path.lineTo(SkBits2Float(0x42f591eb), SkBits2Float(0x42d4e76d));  // 122.785f, 106.452f
+path.lineTo(SkBits2Float(0x42f6c6e0), SkBits2Float(0x42d5d261));  // 123.388f, 106.911f
+path.quadTo(SkBits2Float(0x42f6bb33), SkBits2Float(0x42d5e1bb), SkBits2Float(0x42f6a3d8), SkBits2Float(0x42d6007c));  // 123.366f, 106.941f, 123.32f, 107.001f
+path.quadTo(SkBits2Float(0x42ea3850), SkBits2Float(0x42e65af0), SkBits2Float(0x42d97a6e), SkBits2Float(0x42ed841c));  // 117.11f, 115.178f, 108.739f, 118.758f
+path.lineTo(SkBits2Float(0x42d91d92), SkBits2Float(0x42ed9ec0));  // 108.558f, 118.81f
+path.lineTo(SkBits2Float(0x42c1a959), SkBits2Float(0x42f146b0));  // 96.8308f, 120.638f
+path.lineTo(SkBits2Float(0x42bfefd4), SkBits2Float(0x42ef80f0));  // 95.9684f, 119.752f
+path.lineTo(SkBits2Float(0x42bfefd4), SkBits2Float(0x42ef80ef));  // 95.9684f, 119.752f
+path.close();
+path.moveTo(SkBits2Float(0x42c2eb4e), SkBits2Float(0x42f00d68));  // 97.4596f, 120.026f
+path.lineTo(SkBits2Float(0x42c16d91), SkBits2Float(0x42efc72c));  // 96.714f, 119.889f
+path.lineTo(SkBits2Float(0x42c131c9), SkBits2Float(0x42ee47a8));  // 96.5972f, 119.14f
+path.lineTo(SkBits2Float(0x42d8a602), SkBits2Float(0x42ea9fb8));  // 108.324f, 117.312f
+path.lineTo(SkBits2Float(0x42d8e1ca), SkBits2Float(0x42ec1f3c));  // 108.441f, 118.061f
+path.lineTo(SkBits2Float(0x42d84926), SkBits2Float(0x42eaba5c));  // 108.143f, 117.364f
+path.quadTo(SkBits2Float(0x42e84a40), SkBits2Float(0x42e3e1f0), SkBits2Float(0x42f439a2), SkBits2Float(0x42d42af8));  // 116.145f, 113.941f, 122.113f, 106.084f
+path.quadTo(SkBits2Float(0x42f45121), SkBits2Float(0x42d40c08), SkBits2Float(0x42f45cf6), SkBits2Float(0x42d3fc79));  // 122.158f, 106.023f, 122.182f, 105.993f
+path.lineTo(SkBits2Float(0x42f45d7f), SkBits2Float(0x42d3fbc5));  // 122.183f, 105.992f
+path.quadTo(SkBits2Float(0x42f69510), SkBits2Float(0x42d114f4), SkBits2Float(0x42f4ccce), SkBits2Float(0x42ce8fb7));  // 123.291f, 104.541f, 122.4f, 103.281f
+path.lineTo(SkBits2Float(0x42f609ba), SkBits2Float(0x42cdaf9e));  // 123.019f, 102.843f
+path.lineTo(SkBits2Float(0x42f62899), SkBits2Float(0x42cf3289));  // 123.079f, 103.599f
+path.lineTo(SkBits2Float(0x42e294a1), SkBits2Float(0x42d0c268));  // 113.29f, 104.38f
+path.lineTo(SkBits2Float(0x42e275c2), SkBits2Float(0x42cf3f7d));  // 113.23f, 103.624f
+path.lineTo(SkBits2Float(0x42e2dc9c), SkBits2Float(0x42d0b5c3));  // 113.431f, 104.355f
+path.quadTo(SkBits2Float(0x42d75bb8), SkBits2Float(0x42d3df08), SkBits2Float(0x42cfc853), SkBits2Float(0x42da7457));  // 107.679f, 105.936f, 103.891f, 109.227f
+path.lineTo(SkBits2Float(0x42cec9ba), SkBits2Float(0x42d94f5c));  // 103.394f, 108.655f
+path.lineTo(SkBits2Float(0x42cfc89f), SkBits2Float(0x42da7416));  // 103.892f, 109.227f
+path.quadTo(SkBits2Float(0x42c53268), SkBits2Float(0x42e3ac00), SkBits2Float(0x42c2eb4e), SkBits2Float(0x42f00d67));  // 98.5984f, 113.836f, 97.4596f, 120.026f
+path.lineTo(SkBits2Float(0x42c2eb4e), SkBits2Float(0x42f00d68));  // 97.4596f, 120.026f
+path.close();
+
+    testSimplify(reporter, path, filename);
+}
+
 static void (*skipTest)(skiatest::Reporter* , const char* filename) = 0;
-static void (*firstTest)(skiatest::Reporter* , const char* filename) = 0;
+static void (*firstTest)(skiatest::Reporter* , const char* filename) = testQuads69;
 static void (*stopTest)(skiatest::Reporter* , const char* filename) = 0;
 
 static TestDesc tests[] = {
+    TEST(simplifyTest_1),
     TEST(carsvg_1),
     TEST(tiger8_393),
     TEST(bug5169),