give up on quad root if infinite

tests/PathTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkGeometry.h"
 #include "SkPaint.h"
@@ skipping 3490 matching lines @@
     p.setLastPt(10, 10);
     pt = p.getPoint(0);
     REPORTER_ASSERT(reporter, pt == SkPoint::Make(10, 10));
     REPORTER_ASSERT(reporter, p.getLastPt(nullptr));
     p.rMoveTo(10, 10);
     REPORTER_ASSERT(reporter, p.getLastPt(&pt) && pt == SkPoint::Make(20, 20));
 }
 
 static void test_contains(skiatest::Reporter* reporter) {
     SkPath p;
+    p.moveTo(SkBits2Float(0xe085e7b1), SkBits2Float(0x5f512c00));  // -7.7191e+19f, 1.50724e+19f
+    p.conicTo(SkBits2Float(0xdfdaa221), SkBits2Float(0x5eaac338), SkBits2Float(0x60342f13), SkBits2Float(0xdf0cbb58), SkBits2Float(0x3f3504f3));  // -3.15084e+19f, 6.15237e+18f, 5.19345e+19f, -1.01408e+19f, 0.707107f
+    p.conicTo(SkBits2Float(0x60ead799), SkBits2Float(0xdfb76c24), SkBits2Float(0x609b9872), SkBits2Float(0xdf730de8), SkBits2Float(0x3f3504f4));  // 1.35377e+20f, -2.6434e+19f, 8.96947e+19f, -1.75139e+19f, 0.707107f
+    p.lineTo(SkBits2Float(0x609b9872), SkBits2Float(0xdf730de8));  // 8.96947e+19f, -1.75139e+19f
+    p.conicTo(SkBits2Float(0x6018b296), SkBits2Float(0xdeee870d), SkBits2Float(0xe008cd8e), SkBits2Float(0x5ed5b2db), SkBits2Float(0x3f3504f3));  // 4.40121e+19f, -8.59386e+18f, -3.94308e+19f, 7.69931e+18f, 0.707107f
+    p.conicTo(SkBits2Float(0xe0d526d9), SkBits2Float(0x5fa67b31), SkBits2Float(0xe085e7b2), SkBits2Float(0x5f512c01), SkBits2Float(0x3f3504f3));  // -1.22874e+20f, 2.39925e+19f, -7.7191e+19f, 1.50724e+19f, 0.707107f
+    REPORTER_ASSERT(reporter, !p.contains(-77.2027664f, 15.3066053f));
+
+    p.reset();
     p.setFillType(SkPath::kInverseWinding_FillType);
     REPORTER_ASSERT(reporter, p.contains(0, 0));
     p.setFillType(SkPath::kWinding_FillType);
     REPORTER_ASSERT(reporter, !p.contains(0, 0));
     p.moveTo(4, 4);
     p.lineTo(6, 8);
     p.lineTo(8, 4);
     // test on edge
     REPORTER_ASSERT(reporter, p.contains(6, 4));
     REPORTER_ASSERT(reporter, p.contains(5, 6));
@@ skipping 505 matching lines @@
     PathTest_Private::TestPathTo(reporter);
     PathRefTest_Private::TestPathRef(reporter);
     PathTest_Private::TestPathrefListeners(reporter);
     test_dump(reporter);
     test_path_crbug389050(reporter);
     test_path_crbugskia2820(reporter);
     test_skbug_3469(reporter);
     test_skbug_3239(reporter);
     test_bounds_crbug_513799(reporter);
 }