fix fuzz bugs

Detect more places where the pathops numerics cause numbers
to become nearly identical and subsequently fail. These tests
have extreme inputs and cannot succeed.

Also remove the expectSuccess parameter from PathOpsDebug
and check instead in the test framework.

R=mbarbella@chromium.org
TBR=reed@google.com
BUG=623072,623022
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2103513002

Review-Url: https://codereview.chromium.org/2103513002

1 files changed, 63 insertions, 0 deletions

diff --git a/tests/PathOpsOpTest.cpp b/tests/PathOpsOpTest.cpp
index d75c9a6fb6..a73bdcf372 100644
--- a/tests/PathOpsOpTest.cpp
+++ b/tests/PathOpsOpTest.cpp
@@ -5884,7 +5884,70 @@ SkPath path2(path);
 testPathFailOp(reporter, path1, path2, kUnion_SkPathOp, filename);
 }
 
+static void fuzz763_9(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(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.conicTo(SkBits2Float(0x2a8c555b), SkBits2Float(0x081f2a21), SkBits2Float(0x7bc00321), SkBits2Float(0xed7a6a4b), SkBits2Float(0x1f212a8c));  // 2.49282e-13f, 4.78968e-34f, 1.99397e+36f, -4.84373e+27f, 3.41283e-20f
+path.lineTo(SkBits2Float(0x7bc00321), SkBits2Float(0xed7a6a4b));  // 1.99397e+36f, -4.84373e+27f
+path.lineTo(SkBits2Float(0x282a3a21), SkBits2Float(0x3a21df28));  // 9.4495e-15f, 0.000617492f
+path.lineTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.close();
+path.moveTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.quadTo(SkBits2Float(0x8a284f9a), SkBits2Float(0x3ac23ab3), SkBits2Float(0x1d2a2928), SkBits2Float(0x63962be6));  // -8.10388e-33f, 0.00148185f, 2.25206e-21f, 5.54035e+21f
+path.moveTo(SkBits2Float(0x29272a81), SkBits2Float(0x2ab03a55));  // 3.71183e-14f, 3.13044e-13f
+path.quadTo(SkBits2Float(0x2720213b), SkBits2Float(0x3a214729), SkBits2Float(0xdf28282a), SkBits2Float(0x8a2f2121));  // 2.22225e-15f, 0.000615227f, -1.2117e+19f, -8.43217e-33f
+path.quadTo(SkBits2Float(0x373b3a27), SkBits2Float(0x201fc4c1), SkBits2Float(0x27576c2a), SkBits2Float(0x5921c25d));  // 1.11596e-05f, 1.35329e-19f, 2.98959e-15f, 2.8457e+15f
+path.quadTo(SkBits2Float(0x2720213b), SkBits2Float(0x3a214729), SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3a21));  // 2.22225e-15f, 0.000615227f, -1.2117e+19f, 0.00105459f
+path.cubicTo(SkBits2Float(0x373b3ac5), SkBits2Float(0x201fc422), SkBits2Float(0x523a702a), SkBits2Float(0x27576c51), SkBits2Float(0x5921c25d), SkBits2Float(0x51523a70));  // 1.11598e-05f, 1.35327e-19f, 2.00186e+11f, 2.9896e-15f, 2.8457e+15f, 5.64327e+10f
+path.quadTo(SkBits2Float(0xd912102a), SkBits2Float(0x284f9a28), SkBits2Float(0xb38a1f30), SkBits2Float(0x3a3ac23a));  // -2.56957e+15f, 1.15242e-14f, -6.4318e-08f, 0.000712428f
+path.lineTo(SkBits2Float(0xc809272a), SkBits2Float(0x29b02829));  // -140445, 7.82294e-14f
+
+    SkPath path2(path);
+    testPathFailOp(reporter, path1, path2, (SkPathOp) 1, filename);
+}
+
+
+static void fuzz763_4(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(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.lineTo(SkBits2Float(0x555b3a2d), SkBits2Float(0x2a212a8c));  // 1.50652e+13f, 1.43144e-13f
+path.conicTo(SkBits2Float(0xc0032108), SkBits2Float(0x7a6a4b7b), SkBits2Float(0x212a8ced), SkBits2Float(0x0321081f), SkBits2Float(0x6a3a7bc0));  // -2.04889f, 3.04132e+35f, 5.77848e-19f, 4.7323e-37f, 5.63611e+25f
+path.conicTo(SkBits2Float(0x3a2147ed), SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3a21), SkBits2Float(0x8a284f9a), SkBits2Float(0x3ac2b33a));  // 0.000615238f, -1.2117e+19f, 0.00105459f, -8.10388e-33f, 0.00148544f
+path.cubicTo(SkBits2Float(0x1d2a2928), SkBits2Float(0x63962be6), SkBits2Float(0x295b2d2a), SkBits2Float(0x68295b2d), SkBits2Float(0x2d296855), SkBits2Float(0x2a8c275b));  // 2.25206e-21f, 5.54035e+21f, 4.86669e-14f, 3.19905e+24f, 9.6297e-12f, 2.48963e-13f
+path.lineTo(SkBits2Float(0x00000000), SkBits2Float(0x00000000));  // 0, 0
+path.close();
+path.moveTo(SkBits2Float(0x55685b1f), SkBits2Float(0x5b2d2968));  // 1.59674e+13f, 4.87407e+16f
+path.lineTo(SkBits2Float(0x2a212a8c), SkBits2Float(0x2a21081f));  // 1.43144e-13f, 1.43025e-13f
+path.conicTo(SkBits2Float(0xde6a4b7b), SkBits2Float(0x2a8ced7a), SkBits2Float(0x21081f21), SkBits2Float(0x3a7bc003), SkBits2Float(0x47ed7a6a));  // -4.22068e+18f, 2.50338e-13f, 4.61198e-19f, 0.00096035f, 121589
+path.lineTo(SkBits2Float(0x55685b1f), SkBits2Float(0x5b2d2968));  // 1.59674e+13f, 4.87407e+16f
+path.close();
+path.moveTo(SkBits2Float(0x55685b1f), SkBits2Float(0x5b2d2968));  // 1.59674e+13f, 4.87407e+16f
+path.quadTo(SkBits2Float(0xdf28282a), SkBits2Float(0x3a8a3a21), SkBits2Float(0x8a284f9a), SkBits2Float(0x3ac23ab3));  // -1.2117e+19f, 0.00105459f, -8.10388e-33f, 0.00148185f
+path.lineTo(SkBits2Float(0x2928088c), SkBits2Float(0x2be61d2a));  // 3.73109e-14f, 1.63506e-12f
+path.conicTo(SkBits2Float(0x2a812a63), SkBits2Float(0x2d292a27), SkBits2Float(0x5568295b), SkBits2Float(0x5b2d2968), SkBits2Float(0x552d6829));  // 2.29444e-13f, 9.6159e-12f, 1.5954e+13f, 4.87407e+16f, 1.19164e+13f
+path.conicTo(SkBits2Float(0x395b2d5b), SkBits2Float(0x68552768), SkBits2Float(0x555b2df0), SkBits2Float(0x1f722a8c), SkBits2Float(0x082a212a));  // 0.000209024f, 4.02636e+24f, 1.50619e+13f, 5.12807e-20f, 5.11965e-34f
+path.lineTo(SkBits2Float(0x55685b1f), SkBits2Float(0x5b2d2968));  // 1.59674e+13f, 4.87407e+16f
+path.close();
+path.moveTo(SkBits2Float(0x212a8c55), SkBits2Float(0x21081f2a));  // 5.7784e-19f, 4.61198e-19f
+path.conicTo(SkBits2Float(0x6a4b7bc0), SkBits2Float(0x2147ed7a), SkBits2Float(0x28282a3a), SkBits2Float(0x21df212a), SkBits2Float(0x033a8a3a));  // 6.14991e+25f, 6.77381e-19f, 9.33503e-15f, 1.51198e-18f, 5.48192e-37f
+
+    SkPath path2(path);
+    testPathFailSkipAssertOp(reporter, path1, path2, (SkPathOp) 1, filename);
+}
+
 static struct TestDesc failTests[] = {
+    TEST(fuzz763_4),
+    TEST(fuzz763_9),
     TEST(fuzz1450_1),
     TEST(fuzz1450_0),
     TEST(bug597926_0),