don't close a contour with a line if nothing's there

tests/PathOpsOpTest.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "PathOpsExtendedTest.h"
 #include "PathOpsTestCommon.h"
 
 class PathTest_Private {
@@ skipping 7840 matching lines @@
 path.moveTo(SkBits2Float(0x72720572), SkBits2Float(0x5b5e2572));  // 4.79373e+30f, 6.25286e+16f
 path.quadTo(SkBits2Float(0x05720089), SkBits2Float(0x25727272), SkBits2Float(0x72728c7a), SkBits2Float(0x5b5e7272));  // 1.13789e-35f, 2.10289e-16f, 4.80417e+30f, 6.26133e+16f
 path.cubicTo(SkBits2Float(0x03000074), SkBits2Float(0x4aff00e8), SkBits2Float(0x397d3972), SkBits2Float(0x01000400), SkBits2Float(0x72727a10), SkBits2Float(0x5e827272));  // 3.76163e-37f, 8.35596e+06f, 0.000241494f, 2.35128e-38f, 4.80275e+30f, 4.69985e+18f
 path.quadTo(SkBits2Float(0x97fc16f3), SkBits2Float(0x0039fc5b), SkBits2Float(0x00f6472e), SkBits2Float(0x01008000));  // -1.62909e-24f, 5.32515e-39f, 2.26171e-38f, 2.36017e-38f
 path.quadTo(SkBits2Float(0x7a057272), SkBits2Float(0x72727272), SkBits2Float(0xf3db5e64), SkBits2Float(0x4a5afc16));  // 1.73224e+35f, 4.80216e+30f, -3.47604e+31f, 3.58785e+06f
 
     SkPath path2(path);
     testPathOpFuzz(reporter, path1, path2, (SkPathOp) 4, filename);
 }
 
+static void fuzz763_43(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 1);
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x5c386c3a), SkBits2Float(0x4e691a3e));  // 2.07642e+17f, 9.77703e+08f
+path.cubicTo(SkBits2Float(0x6f69f9f5), SkBits2Float(0x18ff8791), SkBits2Float(0x2492263c), SkBits2Float(0xbc6fdb48), SkBits2Float(0xc2f82107), SkBits2Float(0x729a18e1));  // 7.24122e+28f, 6.60528e-24f, 6.33822e-17f, -0.0146397f, -124.065f, 6.10442e+30f
+path.cubicTo(SkBits2Float(0x07d729d1), SkBits2Float(0xdea6db48), SkBits2Float(0xcd1dfb88), SkBits2Float(0x90826769), SkBits2Float(0x1c20e5a4), SkBits2Float(0xa4c3ba9b));  // 3.23742e-34f, -6.01164e+18f, -1.65657e+08f, -5.14353e-29f, 5.32364e-22f, -8.48839e-17f
+path.moveTo(SkBits2Float(0xcc2084b7), SkBits2Float(0x19f68bdb));  // -4.20789e+07f, 2.54923e-23f
+path.close();
+path.moveTo(SkBits2Float(0xcc2084b7), SkBits2Float(0x19f68bdb));  // -4.20789e+07f, 2.54923e-23f
+path.cubicTo(SkBits2Float(0xdeea1d6e), SkBits2Float(0xc7774804), SkBits2Float(0x27cf0dcf), SkBits2Float(0x6ae8b99f), SkBits2Float(0x24ac3260), SkBits2Float(0x062fa93c));  // -8.43488e+18f, -63304, 5.7469e-15f, 1.40674e+26f, 7.46784e-17f, 3.30382e-35f
+path.lineTo(SkBits2Float(0x438a0b9c), SkBits2Float(0x60a1d2c8));  // 276.091f, 9.32848e+19f
+path.quadTo(SkBits2Float(0xe13fb902), SkBits2Float(0x07ee536f), SkBits2Float(0x971d8ac1), SkBits2Float(0x2f9f174b));  // -2.21041e+20f, 3.58593e-34f, -5.09046e-25f, 2.89385e-10f
+path.lineTo(SkBits2Float(0x0f2cf5d8), SkBits2Float(0xe271654c));  // 8.5276e-30f, -1.11324e+21f
+path.lineTo(SkBits2Float(0xe6cf24d2), SkBits2Float(0xd9537742));  // -4.89105e+23f, -3.72015e+15f
+path.cubicTo(SkBits2Float(0x1aaaee04), SkBits2Float(0x9e3b804c), SkBits2Float(0x84cba87d), SkBits2Float(0x4e0e8ccc), SkBits2Float(0x2aec611a), SkBits2Float(0x7ae4b639));  // 7.06949e-23f, -9.92623e-21f, -4.78798e-36f, 5.97898e+08f, 4.19894e-13f, 5.9377e+35f
+path.conicTo(SkBits2Float(0x73357921), SkBits2Float(0x6f163021), SkBits2Float(0x70ea542c), SkBits2Float(0xe008f404), SkBits2Float(0x1f6c5e52));  // 1.43778e+31f, 4.64809e+28f, 5.8017e+29f, -3.94741e+19f, 5.0053e-20f
+path.lineTo(SkBits2Float(0xda45ad4e), SkBits2Float(0xedce4a04));  // -1.39103e+16f, -7.98042e+27f
+path.lineTo(SkBits2Float(0xac0e45da), SkBits2Float(0x8f632841));  // -2.02182e-12f, -1.11997e-29f
+path.lineTo(SkBits2Float(0xcc2084b7), SkBits2Float(0x19f68bdb));  // -4.20789e+07f, 2.54923e-23f
+path.close();
+path.moveTo(SkBits2Float(0xcc2084b7), SkBits2Float(0x19f68bdb));  // -4.20789e+07f, 2.54923e-23f
+path.quadTo(SkBits2Float(0xf35c4ad5), SkBits2Float(0x0692f251), SkBits2Float(0x69632126), SkBits2Float(0xb927af67));  // -1.74534e+31f, 5.52751e-35f, 1.71614e+25f, -0.000159917f
+path.moveTo(SkBits2Float(0x6534bff9), SkBits2Float(0x434a9986));  // 5.3348e+22f, 202.6f
+path.quadTo(SkBits2Float(0x37c603e5), SkBits2Float(0xa0683953), SkBits2Float(0x751915e4), SkBits2Float(0x831c911a));  // 2.36053e-05f, -1.96701e-19f, 1.94059e+32f, -4.60108e-37f
+path.cubicTo(SkBits2Float(0xba4f10f1), SkBits2Float(0x5a7571df), SkBits2Float(0x4ec67459), SkBits2Float(0x33c58827), SkBits2Float(0x10b78ccb), SkBits2Float(0xedbd2748));  // -0.000789895f, 1.72716e+16f, 1.66476e+09f, 9.19829e-08f, 7.23977e-29f, -7.31752e+27f
+path.cubicTo(SkBits2Float(0x6d06f06a), SkBits2Float(0xe30465cf), SkBits2Float(0xc5458fe7), SkBits2Float(0xca488dc4), SkBits2Float(0x38f9021c), SkBits2Float(0x3e8d58db));  // 2.6101e+27f, -2.44231e+21f, -3160.99f, -3.28587e+06f, 0.000118736f, 0.276069f
+
+    SkPath path2(path);
+    testPathOpFuzz(reporter, path1, path2, (SkPathOp) 4, filename);
+}
+
 static struct TestDesc failTests[] = {
+    TEST(fuzz763_43),
     TEST(fuzz763_42),
     TEST(fuzz763_41),
     TEST(fuzz763_40),
     TEST(fuzz763_39),
     TEST(fuzz763_38),
     TEST(fuzz763_37),
     TEST(fuzz763_36),
     TEST(fuzz763_35),
     TEST(fuzz763_34),
     TEST(fuzz763_33),
@@ skipping 62 matching lines @@
 static struct TestDesc repTests[] = {
     TEST(loops44i),
     TEST(loops45i),
     TEST(loops46i),
 };
 
 DEF_TEST(PathOpsRepOp, reporter) {
   for (int index = 0; index < 2; ++index)
     RunTestSet(reporter, repTests, SK_ARRAY_COUNT(repTests), nullptr, nullptr, nullptr, false);
 }