fail early if coincidence can't be resolved

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"
 
 #define TEST(name) { name, #name }
@@ skipping 3493 matching lines @@
         path2.quadTo(400, 301.028259277f, 400, 290.87298584f);
         path2.quadTo(400, 280.717712402f, 407.180847168f, 273.536865234f);
         path2.quadTo(414.361724854f, 266.355987549f, 424.516998291f, 266.355987549f);
         path2.quadTo(434.672271729f, 266.355987549f, 441.853149414f, 273.536865234f);
         path2.quadTo(449.033996582f, 280.717712402f, 449.033996582f, 290.87298584f);
         path2.close();
 
     testPathOp(reporter, path1, path2, kUnion_PathOp, filename);
 }
 
-static void (*firstTest)(skiatest::Reporter* , const char* filename) = cubicOp95u;
+static void (*firstTest)(skiatest::Reporter* , const char* filename) = 0;
 static void (*stopTest)(skiatest::Reporter* , const char* filename) = 0;
 
 static struct TestDesc tests[] = {
     TEST(issue2753),  // FIXME: pair of cubics miss intersection
     TEST(cubicOp114),  // FIXME: curve with inflection is ordered the wrong way
     TEST(issue2808),
     TEST(cubicOp114asQuad),
     TEST(rects4),
     TEST(rects3),
     TEST(rects2),
@@ skipping 275 matching lines @@
     path2.lineTo(250, 230);
     path2.lineTo(90, 120);
     path2.lineTo(290, 120);
     path2.lineTo(120, 1.1e+10f);
     path2.lineTo(190, 60);
     path2.close();
 
     testPathFailOp(reporter, path1, path2, kUnion_PathOp, filename);
 }
 
+static void fuzz487a(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x429a6666), SkBits2Float(0x42f9999a), SkBits2Float(0x4275999a), SkBits2Float(0x42d70001), SkBits2Float(0x42633333));
+path.lineTo(SkBits2Float(0x42e90001), SkBits2Float(0x41b8cccc));
+path.cubicTo(SkBits2Float(0x42dc6667), SkBits2Float(0x41ab3332), SkBits2Float(0x42cf3334), SkBits2Float(0x41a3ffff), SkBits2Float(0x42c20001), SkBits2Float(0x41a3ffff));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.cubicTo(SkBits2Float(0x429c6668), SkBits2Float(0x425d999a), SkBits2Float(0x4279999c), SkBits2Float(0x42886667), SkBits2Float(0x42673335), SkBits2Float(0x42ab0000));
+path.lineTo(SkBits2Float(0x41c0ccd0), SkBits2Float(0x42990000));
+path.cubicTo(SkBits2Float(0x41b33336), SkBits2Float(0x42a5999a), SkBits2Float(0x41ac0003), SkBits2Float(0x42b2cccd), SkBits2Float(0x41ac0003), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999c), SkBits2Float(0x434d3333), SkBits2Float(0x4364e667), SkBits2Float(0x4346b333), SkBits2Float(0x4364e667), SkBits2Float(0x43400000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x42a20000), SkBits2Float(0x43016667), SkBits2Float(0x4287cccd), SkBits2Float(0x42ea999a), SkBits2Float(0x4273999a));
+path.lineTo(SkBits2Float(0x4306cccd), SkBits2Float(0x41f5999a));
+path.cubicTo(SkBits2Float(0x42f76667), SkBits2Float(0x41c26667), SkBits2Float(0x42dd999a), SkBits2Float(0x41a4cccd), SkBits2Float(0x42c23334), SkBits2Float(0x41a4cccd));
+path.lineTo(SkBits2Float(0x42c23334), SkBits2Float(0x425e0000));
+path.cubicTo(SkBits2Float(0x42a43334), SkBits2Float(0x425e0000), SkBits2Float(0x428a0001), SkBits2Float(0x427ecccd), SkBits2Float(0x42780002), SkBits2Float(0x4297999a));
+path.lineTo(SkBits2Float(0x41fccccd), SkBits2Float(0x42693333));
+path.cubicTo(SkBits2Float(0x41c9999a), SkBits2Float(0x428acccd), SkBits2Float(0x41ac0000), SkBits2Float(0x42a4999a), SkBits2Float(0x41ac0000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999a), SkBits2Float(0x42de0000), SkBits2Float(0x42813333), SkBits2Float(0x42f83333), SkBits2Float(0x42996666), SkBits2Float(0x4303199a));
+path.cubicTo(SkBits2Float(0x4272cccc), SkBits2Float(0x4303199a), SkBits2Float(0x423d3332), SkBits2Float(0x430de667), SkBits2Float(0x422d9999), SkBits2Float(0x431cb334));
+path.lineTo(SkBits2Float(0x7086a1dc), SkBits2Float(0x42eecccd));
+path.lineTo(SkBits2Float(0x41eb3333), SkBits2Float(0xc12ccccd));
+path.lineTo(SkBits2Float(0x42053333), SkBits2Float(0xc1cccccd));
+path.lineTo(SkBits2Float(0x42780000), SkBits2Float(0xc18f3334));
+path.cubicTo(SkBits2Float(0x43206666), SkBits2Float(0x43134ccd), SkBits2Float(0x43213333), SkBits2Float(0x430db333), SkBits2Float(0x43213333), SkBits2Float(0x43080000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path2(path);
+    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+}
+
+static void fuzz487b(skiatest::Reporter* reporter, const char* filename) {
+    SkPath path;
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x429a6666), SkBits2Float(0x42f9999a), SkBits2Float(0x4275999a), SkBits2Float(0x42d70001), SkBits2Float(0x42633333));
+path.lineTo(SkBits2Float(0x42e90001), SkBits2Float(0x41b8cccc));
+path.cubicTo(SkBits2Float(0x42dc6667), SkBits2Float(0x41ab3332), SkBits2Float(0x42cf3334), SkBits2Float(0x41a3ffff), SkBits2Float(0x42c20001), SkBits2Float(0x41a3ffff));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.lineTo(SkBits2Float(0x42c20001), SkBits2Float(0x425d999a));
+path.cubicTo(SkBits2Float(0x429c6668), SkBits2Float(0x425d999a), SkBits2Float(0x4279999c), SkBits2Float(0x42886667), SkBits2Float(0x42673335), SkBits2Float(0x42ab0000));
+path.lineTo(SkBits2Float(0x41c0ccd0), SkBits2Float(0x42990000));
+path.cubicTo(SkBits2Float(0x41b33336), SkBits2Float(0x42a5999a), SkBits2Float(0x41ac0003), SkBits2Float(0x42b2cccd), SkBits2Float(0x41ac0003), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999c), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999c), SkBits2Float(0x434d3333), SkBits2Float(0x4364e667), SkBits2Float(0x4346b333), SkBits2Float(0x4364e667), SkBits2Float(0x43400000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path1(path);
+    path.reset();
+    path.setFillType((SkPath::FillType) 0);
+path.moveTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4309999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4309999a), SkBits2Float(0x42a20000), SkBits2Float(0x43016667), SkBits2Float(0x4287cccd), SkBits2Float(0x42ea999a), SkBits2Float(0x4273999a));
+path.lineTo(SkBits2Float(0x4306cccd), SkBits2Float(0x41f5999a));
+path.cubicTo(SkBits2Float(0x42f76667), SkBits2Float(0x41c26667), SkBits2Float(0x42dd999a), SkBits2Float(0x41a4cccd), SkBits2Float(0x42c23334), SkBits2Float(0x41a4cccd));
+path.lineTo(SkBits2Float(0x42c23334), SkBits2Float(0x425e0000));
+path.cubicTo(SkBits2Float(0x42a43334), SkBits2Float(0x425e0000), SkBits2Float(0x428a0001), SkBits2Float(0x427ecccd), SkBits2Float(0x42780002), SkBits2Float(0x4297999a));
+path.lineTo(SkBits2Float(0x41fccccd), SkBits2Float(0x42693333));
+path.cubicTo(SkBits2Float(0x41c9999a), SkBits2Float(0x428acccd), SkBits2Float(0x41ac0000), SkBits2Float(0x42a4999a), SkBits2Float(0x41ac0000), SkBits2Float(0x42c00000));
+path.lineTo(SkBits2Float(0x4261999a), SkBits2Float(0x42c00000));
+path.cubicTo(SkBits2Float(0x4261999a), SkBits2Float(0x42de0000), SkBits2Float(0x42813333), SkBits2Float(0x42f83333), SkBits2Float(0x42996666), SkBits2Float(0x4303199a));
+path.cubicTo(SkBits2Float(0x4272cccc), SkBits2Float(0x4303199a), SkBits2Float(0x423d3332), SkBits2Float(0x430de667), SkBits2Float(0x422d9999), SkBits2Float(0x431cb334));
+path.lineTo(SkBits2Float(0x7086a1dc), SkBits2Float(0x42eecccd));
+path.lineTo(SkBits2Float(0x41eb3333), SkBits2Float(0xc12ccccd));
+path.lineTo(SkBits2Float(0x42053333), SkBits2Float(0xc1cccccd));
+path.lineTo(SkBits2Float(0x42780000), SkBits2Float(0xc18f3334));
+path.cubicTo(SkBits2Float(0x43206666), SkBits2Float(0x43134ccd), SkBits2Float(0x43213333), SkBits2Float(0x430db333), SkBits2Float(0x43213333), SkBits2Float(0x43080000));
+path.lineTo(SkBits2Float(0x432c8000), SkBits2Float(0x42c00000));
+path.close();
+
+    SkPath path2(path);
+    testPathFailOp(reporter, path1, path2, (SkPathOp) 2, filename);
+}
+
 static struct TestDesc failTests[] = {
+    TEST(fuzz487a),
+    TEST(fuzz487b),
     TEST(fuzz433b),
     TEST(fuzz433),
     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, 0, 0, false);
 }