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Diffstat (limited to 'tests/PathOpsCubicIntersectionTest.cpp')
-rw-r--r-- | tests/PathOpsCubicIntersectionTest.cpp | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/tests/PathOpsCubicIntersectionTest.cpp b/tests/PathOpsCubicIntersectionTest.cpp new file mode 100644 index 0000000000..5a6a336a3f --- /dev/null +++ b/tests/PathOpsCubicIntersectionTest.cpp @@ -0,0 +1,513 @@ +/* + * 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 "PathOpsCubicIntersectionTestData.h" +#include "PathOpsTestCommon.h" +#include "SkIntersections.h" +#include "SkPathOpsRect.h" +#include "SkReduceOrder.h" +#include "Test.h" + +const int firstCubicIntersectionTest = 9; + +static void standardTestCases(skiatest::Reporter* reporter) { + for (size_t index = firstCubicIntersectionTest; index < tests_count; ++index) { + int iIndex = static_cast<int>(index); + const SkDCubic& cubic1 = tests[index][0]; + const SkDCubic& cubic2 = tests[index][1]; + SkReduceOrder reduce1, reduce2; + int order1 = reduce1.reduce(cubic1, SkReduceOrder::kNo_Quadratics, + SkReduceOrder::kFill_Style); + int order2 = reduce2.reduce(cubic2, SkReduceOrder::kNo_Quadratics, + SkReduceOrder::kFill_Style); + const bool showSkipped = false; + if (order1 < 4) { + if (showSkipped) { + SkDebugf("%s [%d] cubic1 order=%d\n", __FUNCTION__, iIndex, order1); + } + continue; + } + if (order2 < 4) { + if (showSkipped) { + SkDebugf("%s [%d] cubic2 order=%d\n", __FUNCTION__, iIndex, order2); + } + continue; + } + SkIntersections tIntersections; + tIntersections.intersect(cubic1, cubic2); + if (!tIntersections.used()) { + if (showSkipped) { + SkDebugf("%s [%d] no intersection\n", __FUNCTION__, iIndex); + } + continue; + } + if (tIntersections.isCoincident(0)) { + if (showSkipped) { + SkDebugf("%s [%d] coincident\n", __FUNCTION__, iIndex); + } + continue; + } + for (int pt = 0; pt < tIntersections.used(); ++pt) { + double tt1 = tIntersections[0][pt]; + SkDPoint xy1 = cubic1.xyAtT(tt1); + double tt2 = tIntersections[1][pt]; + SkDPoint xy2 = cubic2.xyAtT(tt2); + if (!xy1.approximatelyEqual(xy2)) { + SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n", + __FUNCTION__, (int)index, pt, tt1, xy1.fX, xy1.fY, tt2, xy2.fX, xy2.fY); + } + REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2)); + } + } +} + +static const SkDCubic testSet[] = { +// FIXME: uncommenting these two will cause this to fail +// this results in two curves very nearly but not exactly coincident +#if 0 +{{{67.426548091427676, 37.993772624988935}, {23.483695892376684, 90.476863174921306}, + {35.597065061143162, 79.872482633158796}, {75.38634169631932, 18.244890038969412}}}, +{{{67.4265481, 37.9937726}, {23.4836959, 90.4768632}, {35.5970651, 79.8724826}, + {75.3863417, 18.24489}}}, +#endif + +{{{0, 0}, {0, 1}, {1, 1}, {1, 0}}}, +{{{1, 0}, {0, 0}, {0, 1}, {1, 1}}}, + +{{{0, 1}, {4, 5}, {1, 0}, {5, 3}}}, +{{{0, 1}, {3, 5}, {1, 0}, {5, 4}}}, + +{{{0, 1}, {1, 6}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {1, 0}, {6, 1}}}, + +{{{0, 1}, {3, 4}, {1, 0}, {5, 1}}}, +{{{0, 1}, {1, 5}, {1, 0}, {4, 3}}}, + +{{{0, 1}, {1, 2}, {1, 0}, {6, 1}}}, +{{{0, 1}, {1, 6}, {1, 0}, {2, 1}}}, + +{{{0, 1}, {0, 5}, {1, 0}, {4, 0}}}, +{{{0, 1}, {0, 4}, {1, 0}, {5, 0}}}, + +{{{0, 1}, {3, 4}, {1, 0}, {3, 0}}}, +{{{0, 1}, {0, 3}, {1, 0}, {4, 3}}}, + +{{{0, 0}, {1, 2}, {3, 4}, {4, 4}}}, +{{{0, 0}, {1, 2}, {3, 4}, {4, 4}}}, +{{{4, 4}, {3, 4}, {1, 2}, {0, 0}}}, + +{{{0, 1}, {2, 3}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {1, 0}, {3, 2}}}, + +{{{0, 2}, {0, 1}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {2, 0}, {1, 0}}}, + +{{{0, 1}, {0, 2}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {1, 0}, {2, 0}}}, + +{{{0, 1}, {1, 6}, {1, 0}, {2, 0}}}, +{{{0, 1}, {0, 2}, {1, 0}, {6, 1}}}, + +{{{0, 1}, {5, 6}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {1, 0}, {6, 5}}}, + +{{{95.837747722788592, 45.025976907939643}, {16.564570095652982, 0.72959763963222402}, + {63.209855865319199, 68.047528419665767}, {57.640240647662544, 59.524565264361243}}}, +{{{51.593891741518817, 38.53849970667553}, {62.34752929878772, 74.924924725166022}, + {74.810149322641152, 34.17966562983564}, {29.368398119401373, 94.66719277886078}}}, + +{{{39.765160968417838, 33.060396198677083}, {5.1922921581157908, 66.854301452103215}, + {31.619281802149157, 25.269248720849514}, {81.541621071073038, 70.025341524754353}}}, +{{{46.078911165743556, 48.259962651999651}, {20.24450549867214, 49.403916182650214}, + {0.26325131778756683, 24.46489805563581}, {15.915006546264051, 83.515023059917155}}}, + +{{{65.454505973241524, 93.881892270353575}, {45.867360264932437, 92.723972719499827}, + {2.1464054482739447, 74.636369140183717}, {33.774068594804994, 40.770872887582925}}}, +{{{72.963387832494163, 95.659300729473728}, {11.809496633619768, 82.209921247423594}, + {13.456139067865974, 57.329313623406605}, {36.060621606214262, 70.867335643091849}}}, + +{{{32.484981432782945, 75.082940782924624}, {42.467313093350882, 48.131159948246157}, + {3.5963115764764657, 43.208665839959245}, {79.442476890721579, 89.709102357602262}}}, +{{{18.98573861410177, 93.308887208490106}, {40.405250173250792, 91.039661826118675}, + {8.0467721950480584, 42.100282172719147}, {40.883324221187891, 26.030185504830527}}}, + +{{{7.5374809128872498, 82.441702896003477}, {22.444346930107265, 22.138854312775123}, + {66.76091829629658, 50.753805856571446}, {78.193478508942519, 97.7932997968948}}}, +{{{97.700573130371311, 53.53260215070685}, {87.72443481149358, 84.575876772671876}, + {19.215031396232092, 47.032676472809484}, {11.989686410869325, 10.659507480757082}}}, + +{{{26.192053931854691, 9.8504326817814416}, {10.174241480498686, 98.476562741434464}, + {21.177712558385782, 33.814968789841501}, {75.329030899018534, 55.02231980442177}}}, +{{{56.222082700683771, 24.54395039218662}, {95.589995289030483, 81.050822735322086}, + {28.180450866082897, 28.837706255185282}, {60.128952916771617, 87.311672180570511}}}, + +{{{42.449716172390481, 52.379709366885805}, {27.896043159019225, 48.797373636065686}, + {92.770268299044233, 89.899302036454571}, {12.102066544863426, 99.43241951960718}}}, +{{{45.77532924980639, 45.958701495993274}, {37.458701356062065, 68.393691335056758}, + {37.569326692060258, 27.673713456687381}, {60.674866037757539, 62.47349659096146}}}, + +{{{67.426548091427676, 37.993772624988935}, {23.483695892376684, 90.476863174921306}, + {35.597065061143162, 79.872482633158796}, {75.38634169631932, 18.244890038969412}}}, +{{{61.336508189019057, 82.693132843213675}, {44.639380902349664, 54.074825790745592}, + {16.815615499771951, 20.049704667203923}, {41.866884958868326, 56.735503699973002}}}, + +{{{18.1312339, 31.6473732}, {95.5711034, 63.5350219}, {92.3283165, 62.0158945}, + {18.5656052, 32.1268808}}}, +{{{97.402018, 35.7169972}, {33.1127443, 25.8935163}, {1.13970027, 54.9424981}, + {56.4860195, 60.529264}}}, +}; + +const size_t testSetCount = sizeof(testSet) / sizeof(testSet[0]); + +static const SkDCubic newTestSet[] = { +{{{0, 1}, {1, 5}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {1, 0}, {5, 1}}}, + +{{{1, 3}, {5, 6}, {5, 3}, {5, 4}}}, +{{{3, 5}, {4, 5}, {3, 1}, {6, 5}}}, + +{{{0, 5}, {0, 5}, {5, 4}, {6, 4}}}, +{{{4, 5}, {4, 6}, {5, 0}, {5, 0}}}, + +{{{0, 4}, {1, 3}, {5, 4}, {4, 2}}}, +{{{4, 5}, {2, 4}, {4, 0}, {3, 1}}}, + +{{{0, 2}, {1, 5}, {3, 2}, {4, 1}}}, +{{{2, 3}, {1, 4}, {2, 0}, {5, 1}}}, + +{{{0, 2}, {2, 3}, {5, 1}, {3, 2}}}, +{{{1, 5}, {2, 3}, {2, 0}, {3, 2}}}, + +{{{2, 6}, {4, 5}, {1, 0}, {6, 1}}}, +{{{0, 1}, {1, 6}, {6, 2}, {5, 4}}}, + +{{{0, 1}, {1, 2}, {6, 5}, {5, 4}}}, +{{{5, 6}, {4, 5}, {1, 0}, {2, 1}}}, + +{{{2.5119999999999996, 1.5710000000000002}, {2.6399999999999983, 1.6599999999999997}, + {2.8000000000000007, 1.8000000000000003}, {3, 2}}}, +{{{2.4181876227114887, 1.9849772580462195}, {2.8269904869227211, 2.009330650246834}, + {3.2004679292461624, 1.9942047174679169}, {3.4986199496818058, 2.0035994597094731}}}, + +{{{2, 3}, {1, 4}, {1, 0}, {6, 0}}}, +{{{0, 1}, {0, 6}, {3, 2}, {4, 1}}}, + +{{{0, 2}, {1, 5}, {1, 0}, {6, 1}}}, +{{{0, 1}, {1, 6}, {2, 0}, {5, 1}}}, + +{{{0, 1}, {1, 5}, {2, 1}, {4, 0}}}, +{{{1, 2}, {0, 4}, {1, 0}, {5, 1}}}, + +{{{0, 1}, {3, 5}, {2, 1}, {3, 1}}}, +{{{1, 2}, {1, 3}, {1, 0}, {5, 3}}}, + +{{{0, 1}, {2, 5}, {6, 0}, {5, 3}}}, +{{{0, 6}, {3, 5}, {1, 0}, {5, 2}}}, + +{{{0, 1}, {3, 6}, {1, 0}, {5, 2}}}, +{{{0, 1}, {2, 5}, {1, 0}, {6, 3}}}, + +{{{1, 2}, {5, 6}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {2, 1}, {6, 5}}}, + +{{{0, 6}, {1, 2}, {1, 0}, {1, 0}}}, +{{{0, 1}, {0, 1}, {6, 0}, {2, 1}}}, + +{{{0, 2}, {0, 1}, {3, 0}, {1, 0}}}, +{{{0, 3}, {0, 1}, {2, 0}, {1, 0}}}, +}; + +const size_t newTestSetCount = sizeof(newTestSet) / sizeof(newTestSet[0]); + +static void oneOff(skiatest::Reporter* reporter, const SkDCubic& cubic1, const SkDCubic& cubic2) { +#if ONE_OFF_DEBUG + SkDebugf("computed quadratics given\n"); + SkDebugf(" {{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}},\n", + cubic1[0].fX, cubic1[0].fY, cubic1[1].fX, cubic1[1].fY, + cubic1[2].fX, cubic1[2].fY, cubic1[3].fX, cubic1[3].fY); + SkDebugf(" {{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}},\n", + cubic2[0].fX, cubic2[0].fY, cubic2[1].fX, cubic2[1].fY, + cubic2[2].fX, cubic2[2].fY, cubic2[3].fX, cubic2[3].fY); +#endif + SkTDArray<SkDQuad> quads1; + CubicToQuads(cubic1, cubic1.calcPrecision(), quads1); +#if ONE_OFF_DEBUG + SkDebugf("computed quadratics set 1\n"); + for (int index = 0; index < quads1.count(); ++index) { + const SkDQuad& q = quads1[index]; + SkDebugf(" {{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}},\n", q[0].fX, q[0].fY, + q[1].fX, q[1].fY, q[2].fX, q[2].fY); + } +#endif + SkTDArray<SkDQuad> quads2; + CubicToQuads(cubic2, cubic2.calcPrecision(), quads2); +#if ONE_OFF_DEBUG + SkDebugf("computed quadratics set 2\n"); + for (int index = 0; index < quads2.count(); ++index) { + const SkDQuad& q = quads2[index]; + SkDebugf(" {{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}},\n", q[0].fX, q[0].fY, + q[1].fX, q[1].fY, q[2].fX, q[2].fY); + } +#endif + SkIntersections intersections; + intersections.intersect(cubic1, cubic2); + double tt1, tt2; + SkDPoint xy1, xy2; + for (int pt3 = 0; pt3 < intersections.used(); ++pt3) { + tt1 = intersections[0][pt3]; + xy1 = cubic1.xyAtT(tt1); + tt2 = intersections[1][pt3]; + xy2 = cubic2.xyAtT(tt2); +#if ONE_OFF_DEBUG + SkDebugf("%s t1=%1.9g (%1.9g, %1.9g) (%1.9g, %1.9g) (%1.9g, %1.9g) t2=%1.9g\n", + __FUNCTION__, tt1, xy1.fX, xy1.fY, intersections.pt(pt3).fX, + intersections.pt(pt3).fY, xy2.fX, xy2.fY, tt2); +#endif + REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2)); + } +} + +static void oneOff(skiatest::Reporter* reporter, int outer, int inner) { + const SkDCubic& cubic1 = testSet[outer]; + const SkDCubic& cubic2 = testSet[inner]; + oneOff(reporter, cubic1, cubic2); +} + +static void newOneOff(skiatest::Reporter* reporter, int outer, int inner) { + const SkDCubic& cubic1 = newTestSet[outer]; + const SkDCubic& cubic2 = newTestSet[inner]; + oneOff(reporter, cubic1, cubic2); +} + +static void oneOffTest(skiatest::Reporter* reporter) { + newOneOff(reporter, 0, 1); + oneOff(reporter, 0, 1); +} + +static void oneOffTests(skiatest::Reporter* reporter) { + for (size_t outer = 0; outer < testSetCount - 1; ++outer) { + for (size_t inner = outer + 1; inner < testSetCount; ++inner) { + oneOff(reporter, outer, inner); + } + } + for (size_t outer = 0; outer < newTestSetCount - 1; ++outer) { + for (size_t inner = outer + 1; inner < newTestSetCount; ++inner) { + oneOff(reporter, outer, inner); + } + } +} + +#define DEBUG_CRASH 0 + +static void CubicIntersection_RandTest(skiatest::Reporter* reporter) { + srand(0); + const int tests = 10000000; +#ifndef SK_BUILD_FOR_WIN + unsigned seed = 0; +#endif + for (int test = 0; test < tests; ++test) { + SkDCubic cubic1, cubic2; + for (int i = 0; i < 4; ++i) { + cubic1[i].fX = static_cast<double>(SK_RAND(seed)) / RAND_MAX * 100; + cubic1[i].fY = static_cast<double>(SK_RAND(seed)) / RAND_MAX * 100; + cubic2[i].fX = static_cast<double>(SK_RAND(seed)) / RAND_MAX * 100; + cubic2[i].fY = static_cast<double>(SK_RAND(seed)) / RAND_MAX * 100; + } + #if DEBUG_CRASH + char str[1024]; + snprintf(str, sizeof(str), + "{{{%1.9g, %1.9g}, {%1.9g, %1.9g}, {%1.9g, %1.9g}, {%1.9g, %1.9g}}},\n" + "{{{%1.9g, %1.9g}, {%1.9g, %1.9g}, {%1.9g, %1.9g}, {%1.9g, %1.9g}}},\n", + cubic1[0].fX, cubic1[0].fY, cubic1[1].fX, cubic1[1].fY, cubic1[2].fX, cubic1[2].fY, + cubic1[3].fX, cubic1[3].fY, + cubic2[0].fX, cubic2[0].fY, cubic2[1].fX, cubic2[1].fY, cubic2[2].fX, cubic2[2].fY, + cubic2[3].fX, cubic2[3].fY); + #endif + SkDRect rect1, rect2; + rect1.setBounds(cubic1); + rect2.setBounds(cubic2); + bool boundsIntersect = rect1.fLeft <= rect2.fRight && rect2.fLeft <= rect2.fRight + && rect1.fTop <= rect2.fBottom && rect2.fTop <= rect1.fBottom; + if (test == -1) { + SkDebugf("ready...\n"); + } + SkIntersections intersections2; + int newIntersects = intersections2.intersect(cubic1, cubic2); + if (!boundsIntersect && newIntersects) { + #if DEBUG_CRASH + SkDebugf("%s %d unexpected intersection boundsIntersect=%d " + " newIntersects=%d\n%s %s\n", __FUNCTION__, test, boundsIntersect, + newIntersects, __FUNCTION__, str); + #endif + REPORTER_ASSERT(reporter, 0); + } + for (int pt = 0; pt < intersections2.used(); ++pt) { + double tt1 = intersections2[0][pt]; + SkDPoint xy1 = cubic1.xyAtT(tt1); + double tt2 = intersections2[1][pt]; + SkDPoint xy2 = cubic2.xyAtT(tt2); + REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2)); + } + } +} + +static void intersectionFinder(int index0, int index1, double t1Seed, double t2Seed, + double t1Step, double t2Step) { + const SkDCubic& cubic1 = newTestSet[index0]; + const SkDCubic& cubic2 = newTestSet[index1]; + SkDPoint t1[3], t2[3]; + bool toggle = true; + do { + t1[0] = cubic1.xyAtT(t1Seed - t1Step); + t1[1] = cubic1.xyAtT(t1Seed); + t1[2] = cubic1.xyAtT(t1Seed + t1Step); + t2[0] = cubic2.xyAtT(t2Seed - t2Step); + t2[1] = cubic2.xyAtT(t2Seed); + t2[2] = cubic2.xyAtT(t2Seed + t2Step); + double dist[3][3]; + dist[1][1] = t1[1].distance(t2[1]); + int best_i = 1, best_j = 1; + for (int i = 0; i < 3; ++i) { + for (int j = 0; j < 3; ++j) { + if (i == 1 && j == 1) { + continue; + } + dist[i][j] = t1[i].distance(t2[j]); + if (dist[best_i][best_j] > dist[i][j]) { + best_i = i; + best_j = j; + } + } + } + if (best_i == 0) { + t1Seed -= t1Step; + } else if (best_i == 2) { + t1Seed += t1Step; + } + if (best_j == 0) { + t2Seed -= t2Step; + } else if (best_j == 2) { + t2Seed += t2Step; + } + if (best_i == 1 && best_j == 1) { + if ((toggle ^= true)) { + t1Step /= 2; + } else { + t2Step /= 2; + } + } + } while (!t1[1].approximatelyEqual(t2[1])); + t1Step = t2Step = 0.1; + double t10 = t1Seed - t1Step * 2; + double t12 = t1Seed + t1Step * 2; + double t20 = t2Seed - t2Step * 2; + double t22 = t2Seed + t2Step * 2; + SkDPoint test; + while (!approximately_zero(t1Step)) { + test = cubic1.xyAtT(t10); + t10 += t1[1].approximatelyEqual(test) ? -t1Step : t1Step; + t1Step /= 2; + } + t1Step = 0.1; + while (!approximately_zero(t1Step)) { + test = cubic1.xyAtT(t12); + t12 -= t1[1].approximatelyEqual(test) ? -t1Step : t1Step; + t1Step /= 2; + } + while (!approximately_zero(t2Step)) { + test = cubic2.xyAtT(t20); + t20 += t2[1].approximatelyEqual(test) ? -t2Step : t2Step; + t2Step /= 2; + } + t2Step = 0.1; + while (!approximately_zero(t2Step)) { + test = cubic2.xyAtT(t22); + t22 -= t2[1].approximatelyEqual(test) ? -t2Step : t2Step; + t2Step /= 2; + } +#if ONE_OFF_DEBUG + SkDebugf("%s t1=(%1.9g<%1.9g<%1.9g) t2=(%1.9g<%1.9g<%1.9g)\n", __FUNCTION__, + t10, t1Seed, t12, t20, t2Seed, t22); + SkDPoint p10 = cubic1.xyAtT(t10); + SkDPoint p1Seed = cubic1.xyAtT(t1Seed); + SkDPoint p12 = cubic1.xyAtT(t12); + SkDebugf("%s p1=(%1.9g,%1.9g)<(%1.9g,%1.9g)<(%1.9g,%1.9g)\n", __FUNCTION__, + p10.fX, p10.fY, p1Seed.fX, p1Seed.fY, p12.fX, p12.fY); + SkDPoint p20 = cubic2.xyAtT(t20); + SkDPoint p2Seed = cubic2.xyAtT(t2Seed); + SkDPoint p22 = cubic2.xyAtT(t22); + SkDebugf("%s p2=(%1.9g,%1.9g)<(%1.9g,%1.9g)<(%1.9g,%1.9g)\n", __FUNCTION__, + p20.fX, p20.fY, p2Seed.fX, p2Seed.fY, p22.fX, p22.fY); +#endif +} + +static void CubicIntersection_IntersectionFinder() { +// double t1Seed = 0.87; +// double t2Seed = 0.87; + double t1Step = 0.000001; + double t2Step = 0.000001; + intersectionFinder(0, 1, 0.855895664, 0.864850875, t1Step, t2Step); + intersectionFinder(0, 1, 0.865207906, 0.865207887, t1Step, t2Step); + intersectionFinder(0, 1, 0.865213351, 0.865208087, t1Step, t2Step); +} + +static void cubicIntersectionSelfTest(skiatest::Reporter* reporter) { + const SkDCubic selfSet[] = { + {{{0, 2}, {2, 3}, {5, 1}, {3, 2}}}, + {{{0, 2}, {3, 5}, {5, 0}, {4, 2}}}, + {{{3.34, 8.98}, {1.95, 10.27}, {3.76, 7.65}, {4.96, 10.64}}}, + {{{3.13, 2.74}, {1.08, 4.62}, {3.71, 0.94}, {2.01, 3.81}}}, + {{{6.71, 3.14}, {7.99, 2.75}, {8.27, 1.96}, {6.35, 3.57}}}, + {{{12.81, 7.27}, {7.22, 6.98}, {12.49, 8.97}, {11.42, 6.18}}}, + }; + size_t selfSetCount = sizeof(selfSet) / sizeof(selfSet[0]); + size_t firstFail = 1; + for (size_t index = firstFail; index < selfSetCount; ++index) { + const SkDCubic& cubic = selfSet[index]; + #if ONE_OFF_DEBUG + int idx2; + double max[3]; + int ts = cubic.findMaxCurvature(max); + for (idx2 = 0; idx2 < ts; ++idx2) { + SkDebugf("%s max[%d]=%1.9g (%1.9g, %1.9g)\n", __FUNCTION__, idx2, + max[idx2], cubic.xyAtT(max[idx2]).fX, cubic.xyAtT(max[idx2]).fY); + } + SkTDArray<double> ts1; + SkTDArray<SkDQuad> quads1; + cubic.toQuadraticTs(cubic.calcPrecision(), &ts1); + for (idx2 = 0; idx2 < ts1.count(); ++idx2) { + SkDebugf("%s t[%d]=%1.9g\n", __FUNCTION__, idx2, ts1[idx2]); + } + CubicToQuads(cubic, cubic.calcPrecision(), quads1); + for (idx2 = 0; idx2 < quads1.count(); ++idx2) { + const SkDQuad& q = quads1[idx2]; + SkDebugf(" {{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}},\n", + q[0].fX, q[0].fY, q[1].fX, q[1].fY, q[2].fX, q[2].fY); + } + SkDebugf("\n"); + #endif + SkIntersections i; + int result = i.intersect(cubic); + REPORTER_ASSERT(reporter, result == 1); + REPORTER_ASSERT(reporter, i.used() == 1); + REPORTER_ASSERT(reporter, !approximately_equal(i[0][0], i[1][0])); + SkDPoint pt1 = cubic.xyAtT(i[0][0]); + SkDPoint pt2 = cubic.xyAtT(i[1][0]); + REPORTER_ASSERT(reporter, pt1.approximatelyEqual(pt2)); + } +} + +static void TestCubicIntersection(skiatest::Reporter* reporter) { + oneOffTest(reporter); + oneOffTests(reporter); + cubicIntersectionSelfTest(reporter); + standardTestCases(reporter); + if (false) CubicIntersection_IntersectionFinder(); + if (false) CubicIntersection_RandTest(reporter); +} + +#include "TestClassDef.h" +DEFINE_TESTCLASS("PathOpsCubicIntersectionTest", CubicIntersectionTestClass, TestCubicIntersection) |