give up if huge paths have unresolvable coincidence

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 5774 matching lines @@
 path.lineTo(SkBits2Float(0x42112d68), SkBits2Float(0xcf223cbf));  // 36.2943f, -2.72189e+09f
 path.cubicTo(SkBits2Float(0x4220d9fc), SkBits2Float(0xcf223cc0), SkBits2Float(0x420ee118), SkBits2Float(0xcf223cc0), SkBits2Float(0x41cef2f8), SkBits2Float(0xcf223cc0));  // 40.2129f, -2.72189e+09f, 35.7198f, -2.72189e+09f, 25.8686f, -2.72189e+09f
 path.lineTo(SkBits2Float(0x424a99e0), SkBits2Float(0xcf223cc0));  // 50.6503f, -2.72189e+09f
 path.cubicTo(SkBits2Float(0x42266e32), SkBits2Float(0xcf223cc0), SkBits2Float(0x41f0fa20), SkBits2Float(0xcf223cc0), SkBits2Float(0x41872ed4), SkBits2Float(0xcf223cc0));  // 41.6076f, -2.72189e+09f, 30.1221f, -2.72189e+09f, 16.8979f, -2.72189e+09f
 path.lineTo(SkBits2Float(0x40f8fbe0), SkBits2Float(0xcf223cc0));  // 7.78075f, -2.72189e+09f
 
     SkPath path2(path);
     testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
 }
 
+static void bug597926_0(skiatest::Reporter* reporter, const char* filename) {
+SkPath path;
+path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x43b38000), SkBits2Float(0x433e0000));  // 359, 190
+path.lineTo(SkBits2Float(0x40c00000), SkBits2Float(0x449ce000));  // 6, 1255
+path.cubicTo(SkBits2Float(0x438c0000), SkBits2Float(0x4497a000), SkBits2Float(0x43e40000), SkBits2Float(0x44750000), SkBits2Float(0x41000000), SkBits2Float(0x44aa2000));  // 280, 1213, 456, 980, 8, 1361
+path.moveTo(SkBits2Float(0x43290000), SkBits2Float(0x4431c000));  // 169, 711
+path.lineTo(SkBits2Float(0xd987d6ba), SkBits2Float(0xd93d0ad4));  // -4.7794e+15f, -3.32567e+15f
+path.conicTo(SkBits2Float(0x43cc8000), SkBits2Float(0x445b8000), SkBits2Float(0xd888b096), SkBits2Float(0xd9a1ebfa), SkBits2Float(0x3ebcb199));  // 409, 878, -1.20234e+15f, -5.69712e+15f, 0.368542f
+path.cubicTo(SkBits2Float(0x43c00000), SkBits2Float(0x443a8000), SkBits2Float(0x42380000), SkBits2Float(0x4421c000), SkBits2Float(0x42500000), SkBits2Float(0x448ca000));  // 384, 746, 46, 647, 52, 1125
+path.quadTo(SkBits2Float(0x43948000), SkBits2Float(0x42ac0000), SkBits2Float(0x43880000), SkBits2Float(0x4487e000));  // 297, 86, 272, 1087
+SkPath path1(path);
+path.reset();
+path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0xc51d735c), SkBits2Float(0xc49db029));  // -2519.21f, -1261.51f
+path.cubicTo(SkBits2Float(0xc51d1dbd), SkBits2Float(0xc49d7a3f), SkBits2Float(0xc51c524a), SkBits2Float(0xc49d1610), SkBits2Float(0xc51d1a96), SkBits2Float(0xc49d86a6));  // -2513.86f, -1259.82f, -2501.14f, -1256.69f, -2513.66f, -1260.21f
+path.cubicTo(SkBits2Float(0xc51cd471), SkBits2Float(0xc49d54d0), SkBits2Float(0xc51c2e51), SkBits2Float(0xc49d0081), SkBits2Float(0xc51d197b), SkBits2Float(0xc49d7927));  // -2509.28f, -1258.65f, -2498.89f, -1256.02f, -2513.59f, -1259.79f
+path.quadTo(SkBits2Float(0xc51bf7eb), SkBits2Float(0xc49cf010), SkBits2Float(0xc51ba866), SkBits2Float(0xc49cb9e6));  // -2495.49f, -1255.5f, -2490.52f, -1253.81f
+path.cubicTo(SkBits2Float(0xc51bac0d), SkBits2Float(0xc49cc50e), SkBits2Float(0xc51c29eb), SkBits2Float(0xc49cfb01), SkBits2Float(0xc51c5bca), SkBits2Float(0xc49d1fa6));  // -2490.75f, -1254.16f, -2498.62f, -1255.84f, -2501.74f, -1256.99f
+SkPath path2(path);
+testPathFailOp(reporter, path1, path2, (SkPathOp) 1, filename);
+}
+
 static struct TestDesc failTests[] = {
+    TEST(bug597926_0),
     TEST(fuzz535151),
     TEST(fuzz753_91),
     TEST(fuzz714),
     TEST(fuzz487a),
     TEST(fuzz433),
     TEST(fuzz1),
     TEST(fuzz487b),
     TEST(fuzz433b),
     TEST(bufferOverflow),
 };
 
 static const size_t failTestCount = SK_ARRAY_COUNT(failTests);
 
 DEF_TEST(PathOpsFailOp, reporter) {
 #if DEBUG_SHOW_TEST_NAME
     strncpy(DEBUG_FILENAME_STRING, "", DEBUG_FILENAME_STRING_LENGTH);
 #endif
     RunTestSet(reporter, failTests, failTestCount, nullptr, nullptr, nullptr, false);
 }