PathOpsQuadIntersectionTest.cpp revision cffbcc3b9665f2c928544b6fc6b8a0e22a4210fb
19166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com/* 29166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com * Copyright 2012 Google Inc. 39166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com * 49166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com * Use of this source code is governed by a BSD-style license that can be 59166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com * found in the LICENSE file. 69166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com */ 79166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "PathOpsQuadIntersectionTestData.h" 89166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "SkIntersections.h" 99166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "SkPathOpsRect.h" 109166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "SkReduceOrder.h" 119166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "Test.h" 129166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 139166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void standardTestCases(skiatest::Reporter* reporter) { 149166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com bool showSkipped = false; 159166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (size_t index = 0; index < quadraticTests_count; ++index) { 169166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad1 = quadraticTests[index][0]; 179166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad2 = quadraticTests[index][1]; 189166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkReduceOrder reduce1, reduce2; 199166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com int order1 = reduce1.reduce(quad1, SkReduceOrder::kFill_Style); 209166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com int order2 = reduce2.reduce(quad2, SkReduceOrder::kFill_Style); 219166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (order1 < 3) { 229166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (showSkipped) { 239166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("[%d] quad1 order=%d\n", static_cast<int>(index), order1); 249166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 259166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 269166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (order2 < 3) { 279166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (showSkipped) { 289166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("[%d] quad2 order=%d\n", static_cast<int>(index), order2); 299166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 309166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 319166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (order1 == 3 && order2 == 3) { 329166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkIntersections intersections; 339166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com intersections.intersect(quad1, quad2); 349166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (intersections.used() > 0) { 359166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int pt = 0; pt < intersections.used(); ++pt) { 369166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt1 = intersections[0][pt]; 379166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint xy1 = quad1.xyAtT(tt1); 389166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt2 = intersections[1][pt]; 399166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint xy2 = quad2.xyAtT(tt2); 409166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (!xy1.approximatelyEqual(xy2)) { 419166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n", 429166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com __FUNCTION__, static_cast<int>(index), pt, tt1, xy1.fX, xy1.fY, 439166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com tt2, xy2.fX, xy2.fY); 449166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, 0); 459166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 469166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 479166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 489166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 499166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 509166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 519166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 529166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic const SkDQuad testSet[] = { 53cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{131.37418,11414.9825}, {130.28798,11415.9328}, {130.042755,11417.4131}}}, 54cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{130.585787,11418.4142}, {130.021447,11417.8498}, {130,11417}}}, 55cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com 56cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{130.73167037963867, 11418.546386718750}, {131.26360225677490, 11418.985778808592}, 57cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {132, 11419 }}}, 58cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{132, 11419}, {131.15012693405151, 11418.978546142578}, 59cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {130.58578681945801, 11418.414184570313}}}, 60cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com 61cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{132, 11419}, 62cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {130.73167037963867, 11418.546386718750}, {131.26360225677490, 11418.985778808592}}}, 63cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {{{131.15012693405151, 11418.978546142578}, 64cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com {130.58578681945801, 11418.414184570313}, {132, 11419}}}, 65cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com 669166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.0774019473063863, 3.35198509346713}, {3.0757503498668397, 3.327320623945933}, 679166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {3.0744102085015879, 3.3025879417907196}}}, 689166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.053913680774329, 3.3310471586283938}, {3.0758730889691694, 3.3273466070370152}, 699166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {3.0975671980059394, 3.3235031316554351}}}, 709166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 719166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.39068129, 4.44939202}, {3.03659239, 3.81843234}, {3.06844529, 3.02100922}}}, 729166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.10714698, 3.44196686}, {3.12180288, 3.38575704}, {3.75968569, 3.1281838}}}, 739166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 749166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.74792918, 4.77711896}, {2.82236867, 4.23882547}, {2.82848144, 3.63729341}}}, 759166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.62772567, 3.64823958}, {3.46652495, 3.64258364}, {4.1425079, 3.48623815}}}, 769166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 779166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.34375, 2.03125}, {2.2734375, 2.6640625}, {3.25, 3.25}}}, 789166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.96875, 4.65625}, {3.3359375, 3.7265625}, {2.75, 2.75}}}, 799166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 809166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0, 1}, {0.324417544, 2.27953848}, {0.664376547, 2.58940267}}}, 819166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1, 2}, {0.62109375, 2.70703125}, {0.640625, 2.546875}}}, 829166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 839166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1, 2}, {0.984375, 2.3359375}, {1.0625, 2.15625}}}, 849166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0, 1}, {0.983539095, 2.30041152}, {1.47325103, 2.61316872}}}, 859166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 869166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{4.09011926, 2.20971038}, {4.74608133, 1.9335932}, {5.02469918, 2.00694987}}}, 879166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.79472921, 1.73568666}, {3.36246373, 1.21251209}, {5, 2}}}, 889166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 899166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.80814127, 2.41537795}, {2.23475077, 2.05922313}, {3.16529668, 1.98358763}}}, 909166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.16505631, 2.55782454}, {2.40541285, 2.02193091}, {2.99836023, 1.68247638}}}, 919166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 929166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3, 1.875}, {3.375, 1.54296875}, {3.375, 1.421875}}}, 939166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.375, 1.421875}, {3.3749999999999996, 1.3007812499999998}, {3, 2}}}, 949166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 959166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{3.34, 8.98}, {2.83363281, 9.4265625}, {2.83796875, 9.363125}}}, 969166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.83796875, 9.363125}, {2.84230469, 9.2996875}, {3.17875, 9.1725}}}, 979166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 989166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.7279999999999998, 3.024}, {2.5600000000000005, 2.5600000000000005}, 999166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {2.1520000000000001, 1.8560000000000001}}}, 1009166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.66666666666666652, 1.1481481481481481}, {1.3333333333333326, 1.3333333333333335}, 1019166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {2.6666666666666665, 2.1851851851851851}}}, 1029166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1039166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.728, 3.024}, {2.56, 2.56}, {2.152, 1.856}}}, 1049166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.666666667, 1.14814815}, {1.33333333, 1.33333333}, {2.66666667, 2.18518519}}}, 1059166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1069166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.875, 1.5}, {1.03125, 1.11022302e-16}, {1, 0}}}, 1079166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.875, 0.859375}, {1.6875, 0.73046875}, {2.5, 0.625}}}, 1089166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1099166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.64451042, 0.0942001592}, {1.53635465, 0.00152863961}, {1, 0}}}, 1109166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.27672209, 0.15}, {1.32143477, 9.25185854e-17}, {1, 0}}}, 1119166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1129166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0, 0}, {0.51851851851851849, 1.0185185185185186}, {1.2592592592592591, 1.9259259259259258}}}, 1139166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.2592592592592593, 1.9259259259259265}, {0.51851851851851893, 1.0185185185185195}, {0, 0}}}, 1149166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1159166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.93281168, 2.58856757}, {2.38543691, 2.7096125}, {2.51967352, 2.34531784}}}, 1169166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.51967352, 2.34531784}, {2.65263731, 2.00639194}, {3.1212119, 1.98608967}}}, 1179166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{2.09544533, 2.51981963}, {2.33331524, 2.25252128}, {2.92003302, 2.39442311}}}, 1189166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1199166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.924337655, 1.94072717}, {1.25185043, 1.52836494}, {1.71793901, 1.06149951}}}, 1209166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.940798831, 1.67439357}, {1.25988251, 1.39778567}, {1.71791672, 1.06650313}}}, 1219166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1229166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.924337655, 1.94072717}, {1.39158994, 1.32418496}, {2.14967426, 0.687365435}}}, 1239166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.940798831, 1.67439357}, {1.48941875, 1.16280321}, {2.47884711, 0.60465921}}}, 1249166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1259166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.7465749139282332, 1.9930452039527999}, {1.8320006564080331, 1.859481345189089}, 1269166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.8731035127758437, 1.6344055934266613}}}, 1279166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.8731035127758437, 1.6344055934266613}, {1.89928170345231, 1.5006405518943067}, 1289166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.9223833226085514, 1.3495796165215643}}}, 1299166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.74657491, 1.9930452}, {1.87407679, 1.76762853}, {1.92238332, 1.34957962}}}, 1309166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.60797907, 1.68776977}, {1.0447864, 1.50810914}, {1.87464474, 1.63655092}}}, 1319166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.87464474, 1.63655092}, {2.70450308, 1.76499271}, {4, 3}}}, 1329166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1339166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.2071879545809394, 0.82163474041730045}, {1.1534203513372994, 0.52790870069930229}, 1349166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.0880000000000001, 0.29599999999999982}}}, //t=0.63155333662549329,0.80000000000000004 1359166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.33333333333333326, 0.81481481481481488}, {0.63395173631977997, 0.68744136726313931}, 1369166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205684411948591, 0.81344322326274499}}}, 1379166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0.33333333333333326, 0.81481481481481488}, {0.63396444791444551, 0.68743368362444768}, 1389166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205732763658403, 0.81345617746834109}}}, //t=0.33333333333333331, 0.63396444791444551 1399166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.205684411948591, 0.81344322326274499}, {1.2057085875611198, 0.81344969999329253}, 1409166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205732763658403, 0.81345617746834109}}}, 1419166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1429166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.20718795, 0.82163474}, {1.15342035, 0.527908701}, {1.088, 0.296}}}, 1439166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1.20568441, 0.813443223}, {1.20570859, 0.8134497}, {1.20573276, 0.813456177}}}, 1449166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1459166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{41.5072916, 87.1234036}, {28.2747836, 80.9545395}, {23.5780771, 69.3344126}}}, 1469166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{72.9633878, 95.6593007}, {42.7738746, 88.4730382}, {31.1932785, 80.2458029}}}, 1479166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1489166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{31.1663962, 54.7302484}, {31.1662882, 54.7301074}, {31.1663969, 54.7302485}}}, 1499166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{26.0404936, 45.4260361}, {27.7887523, 33.1863051}, {40.8833242, 26.0301855}}}, 1509166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1519166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{29.9404074, 49.1672596}, {44.3131071, 45.3915253}, {58.1067559, 59.5061814}}}, 1529166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{72.6510251, 64.2972928}, {53.6989659, 60.1862397}, {35.2053722, 44.8391126}}}, 1539166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1549166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{52.14807018377202, 65.012420045148644}, {44.778669050208237, 66.315562705604378}, 1559166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {51.619118408823567, 63.787827046262684}}}, 1569166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{30.004993234763383, 93.921296668202288}, {53.384822003076991, 60.732180341802753}, 1579166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {58.652998934338584, 43.111073088306185}}}, 1589166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1599166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{80.897794748143198, 49.236332042718459}, {81.082078218891212, 64.066749904488631}, 1609166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {69.972305057149981, 72.968595519850993}}}, 1619166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{72.503745601281395, 32.952320736577882}, {88.030880716061645, 38.137194847810164}, 1629166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {73.193774825517906, 67.773492479591397}}}, 1639166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1649166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{67.426548091427676, 37.993772624988935}, {51.129513170665035, 57.542281234563646}, 1659166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {44.594748190899189, 65.644267382683879}}}, 1669166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{61.336508189019057, 82.693132843213675}, {54.825078921449354, 71.663932799212432}, 1679166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {47.727444217558926, 61.4049645128392}}}, 1689166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1699166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{67.4265481, 37.9937726}, {51.1295132, 57.5422812}, {44.5947482, 65.6442674}}}, 1709166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{61.3365082, 82.6931328}, {54.8250789, 71.6639328}, {47.7274442, 61.4049645}}}, 1719166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1729166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{53.774852327053594, 53.318060789841951}, {45.787877803416805, 51.393492026284981}, 1739166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {46.703936967162392, 53.06860709822206}}}, 1749166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{46.703936967162392, 53.06860709822206}, {47.619996130907957, 54.74372217015916}, 1759166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {53.020051653535361, 48.633140968832024}}}, 1769166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1779166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{50.934805397717923, 51.52391952648901}, {56.803308902971423, 44.246234610627596}, 1789166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {69.776888596721406, 40.166645096692555}}}, 1799166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{50.230212796400401, 38.386469101526998}, {49.855620812184917, 38.818990392153609}, 1809166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {56.356567496227363, 47.229909093319407}}}, 1819166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1829166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{36.148792695174222, 70.336952793070424}, {36.141613037691357, 70.711654739870085}, 1839166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {36.154708826402597, 71.088492662905836}}}, 1849166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{35.216235592661825, 70.580199617313212}, {36.244476835123969, 71.010897787304074}, 1859166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {37.230244263238326, 71.423156953613102}}}, 1869166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1879166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com // this pair is nearly coincident, and causes the quartic code to produce bad 1889166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com // data. Mathematica doesn't think they touch. Graphically, I can't tell. 1899166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com // it may not be so bad to pretend that they don't touch, if I can detect that 1909166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.848602, 145.680267}, {382.360413, 121.298294}, {406.207703, 121.298294}}}, 1919166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.850525, 145.675964}, {382.362915, 121.29287}, {406.211273, 121.29287}}}, 1929166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1939166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{33.567436351153468, 62.336347586395924}, {35.200980274619084, 65.038561460144479}, 1949166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {36.479571811084995, 67.632178905412445}}}, 1959166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{41.349524945572696, 67.886658677862641}, {39.125562529359087, 67.429772735149214}, 1969166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {35.600314083992416, 66.705372160552685}}}, 1979166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 1989166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{67.25299631583178, 21.109080184767524}, {43.617595267398613, 33.658034168577529}, 1999166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {33.38371819435676, 44.214192553988745}}}, 2009166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{40.476838859398541, 39.543209911285999}, {36.701186108431131, 34.8817994016458}, 2019166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {30.102144288878023, 26.739063172945315}}}, 2029166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2039166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{25.367434474345036, 50.4712103169743}, {17.865013304933097, 37.356741010559439}, 2049166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {16.818988838905465, 37.682915484123129}}}, 2059166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{16.818988838905465, 37.682915484123129}, {15.772964372877833, 38.009089957686811}, 2069166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {20.624104547604965, 41.825131596683121}}}, 2079166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2089166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{26.440225044088567, 79.695009812848298}, {26.085525979582247, 83.717928354134784}, 2099166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {27.075079976297072, 84.820633667838905}}}, 2109166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{27.075079976297072, 84.820633667838905}, {28.276546859574015, 85.988574184029034}, 2119166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {25.649263209500006, 87.166762066617025}}}, 2129166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2139166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{34.879150914024962, 83.862726601601125}, {35.095810134304429, 83.693473210169543}, 2149166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {35.359284111931586, 83.488069234177502}}}, 2159166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{54.503204203015471, 76.094098492518242}, {51.366889541918894, 71.609856061299155}, 2169166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {46.53086955445437, 69.949863036494207}}}, 2179166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2189166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{0, 0}, {1, 0}, {0, 3}}}, 2199166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{1, 0}, {0, 1}, {1, 1}}}, 2209166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.961151, 137.980698}, {383.970093, 121.298294}, {406.213287, 121.298294}}}, 2219166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{353.2948, 194.351074}, {353.2948, 173.767563}, {364.167572, 160.819855}}}, 2229166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{360.416077, 166.795715}, {370.126831, 147.872162}, {388.635406, 147.872162}}}, 2239166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{406.236359, 121.254936}, {409.445679, 121.254936}, {412.975952, 121.789818}}}, 2249166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{406.235992, 121.254936}, {425.705902, 121.254936}, {439.71994, 137.087616}}}, 2259166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2269166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.8543701171875, 145.66734313964844}, {382.36788940429688, 121.28203582763672}, 2279166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {406.21844482421875, 121.28203582763672}}}, 2289166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.96469116210938, 137.96672058105469}, {383.97555541992188, 121.28203582763672}, 2299166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {406.2218017578125, 121.28203582763672}}}, 2309166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2319166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.962311, 137.976044}, {383.971893, 121.29287}, {406.216125, 121.29287}}}, 2329166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2339166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{400.121704, 149.468719}, {391.949493, 161.037186}, {391.949493, 181.202423}}}, 2349166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{391.946747, 181.839218}, {391.946747, 155.62442}, {406.115479, 138.855438}}}, 2359166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{360.048828125, 229.2578125}, {360.048828125, 224.4140625}, {362.607421875, 221.3671875}}}, 2369166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{362.607421875, 221.3671875}, {365.166015625, 218.3203125}, {369.228515625, 218.3203125}}}, 2379166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{8, 8}, {10, 10}, {8, -10}}}, 2389166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{8, 8}, {12, 12}, {14, 4}}}, 2399166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{8, 8}, {9, 9}, {10, 8}}} 2409166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com}; 2419166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 242ad65a3e5fb1f94699f183551b828efbcc6a133cecaryclark@google.comconst size_t testSetCount = SK_ARRAY_COUNT(testSet); 2439166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2449166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void oneOffTest1(skiatest::Reporter* reporter, size_t outer, size_t inner) { 2459166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad1 = testSet[outer]; 2469166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad2 = testSet[inner]; 2479166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkIntersections intersections2; 2489166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com intersections2.intersect(quad1, quad2); 2499166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int pt = 0; pt < intersections2.used(); ++pt) { 2509166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt1 = intersections2[0][pt]; 2519166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint xy1 = quad1.xyAtT(tt1); 2529166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt2 = intersections2[1][pt]; 2539166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint xy2 = quad2.xyAtT(tt2); 2549166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (!xy1.approximatelyEqual(xy2)) { 2559166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n", 2569166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com __FUNCTION__, static_cast<int>(outer), static_cast<int>(inner), 2579166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com tt1, xy1.fX, xy1.fY, tt2, xy2.fX, xy2.fY); 2589166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, 0); 2599166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 2609166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#if ONE_OFF_DEBUG 2619166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s [%d][%d] t1=%1.9g (%1.9g, %1.9g) t2=%1.9g\n", __FUNCTION__, 2629166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com outer, inner, tt1, xy1.fX, xy1.fY, tt2); 2639166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#endif 2649166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 2659166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 2669166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2679166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void QuadraticIntersection_OneOffTest(skiatest::Reporter* reporter) { 268cffbcc3b9665f2c928544b6fc6b8a0e22a4210fbcaryclark@google.com oneOffTest1(reporter, 0, 1); 2699166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 2709166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2719166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void oneOffTests(skiatest::Reporter* reporter) { 2729166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (size_t outer = 0; outer < testSetCount - 1; ++outer) { 2739166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (size_t inner = outer + 1; inner < testSetCount; ++inner) { 2749166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com oneOffTest1(reporter, outer, inner); 2759166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 2769166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 2779166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 2789166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2799166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic const SkDQuad coincidentTestSet[] = { 2809166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.850525, 145.675964}, {382.362915, 121.29287}, {406.211273, 121.29287}}}, 2819166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{369.850525, 145.675964}, {382.362915, 121.29287}, {406.211273, 121.29287}}}, 2829166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{8, 8}, {10, 10}, {8, -10}}}, 2839166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {{{8, -10}, {10, 10}, {8, 8}}}, 2849166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com}; 2859166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 286ad65a3e5fb1f94699f183551b828efbcc6a133cecaryclark@google.comconst size_t coincidentTestSetCount = SK_ARRAY_COUNT(coincidentTestSet); 2879166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 2889166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void coincidentTest(skiatest::Reporter* reporter) { 2899166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (size_t testIndex = 0; testIndex < coincidentTestSetCount - 1; testIndex += 2) { 2909166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad1 = coincidentTestSet[testIndex]; 2919166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad2 = coincidentTestSet[testIndex + 1]; 2929166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkIntersections intersections2; 2939166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com intersections2.intersect(quad1, quad2); 2949166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, intersections2.coincidentUsed() == 2); 2959166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, intersections2.used() == 2); 2969166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int pt = 0; pt < intersections2.coincidentUsed(); ++pt) { 2979166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt1 = intersections2[0][pt]; 2989166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double tt2 = intersections2[1][pt]; 2999166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, approximately_equal(1, tt1) || approximately_zero(tt1)); 3009166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com REPORTER_ASSERT(reporter, approximately_equal(1, tt2) || approximately_zero(tt2)); 3019166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3029166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3039166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 3049166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3059166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic int floatSign(double x) { 3069166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com return x < 0 ? -1 : x > 0 ? 1 : 0; 3079166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 3089166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3099166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic const SkDQuad pointFinderTestSet[] = { 3109166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com //>=0.633974464 0.633974846 <= 3119166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{1.2071879545809394, 0.82163474041730045}, {1.1534203513372994, 0.52790870069930229}, 3129166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.0880000000000001, 0.29599999999999982}}}, //t=0.63155333662549329, 0.80000000000000004 3139166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{1.2071879545809394, 0.82163474041730045}, {1.2065040319428038, 0.81766753259119995}, 3149166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.2058123269101506, 0.81370135061854221}}}, //t=0.63155333662549329, 0.6339049773632347 3159166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{1.2058123269101506, 0.81370135061854221}, {1.152376363978022, 0.5244097415381026}, 3169166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.0880000000000001, 0.29599999999999982}}}, //t=0.6339049773632347, 0.80000000000000004 3179166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com //>=0.633974083 0.633975227 <= 3189166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{0.33333333333333326, 0.81481481481481488}, {0.63395173631977997, 0.68744136726313931}, 3199166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205684411948591, 0.81344322326274499}}}, //t=0.33333333333333331, 0.63395173631977986 3209166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{0.33333333333333326, 0.81481481481481488}, {0.63396444791444551, 0.68743368362444768}, 3219166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205732763658403, 0.81345617746834109}}}, //t=0.33333333333333331, 0.63396444791444551 3229166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{1.205684411948591, 0.81344322326274499}, {1.2057085875611198, 0.81344969999329253}, 3239166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.205732763658403, 0.81345617746834109}}}, //t=0.63395173631977986, 0.63396444791444551 3249166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com{{{1.205732763658403, 0.81345617746834109}, {1.267928895828891, 0.83008534558465619}, 3259166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com {1.3333333333333333, 0.85185185185185175}}}, //t=0.63396444791444551, 0.66666666666666663 3269166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com}; 3279166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3289166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void pointFinder(const SkDQuad& q1, const SkDQuad& q2) { 3299166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int index = 0; index < 3; ++index) { 3309166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t = q1.nearestT(q2[index]); 3319166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint onQuad = q1.xyAtT(t); 3329166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s t=%1.9g (%1.9g,%1.9g) dist=%1.9g\n", __FUNCTION__, t, onQuad.fX, onQuad.fY, 3339166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com onQuad.distance(q2[index])); 3349166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double left[3]; 3359166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com left[0] = ((const SkDLine&) q1[0]).isLeft(q2[index]); 3369166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com left[1] = ((const SkDLine&) q1[1]).isLeft(q2[index]); 3379166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDLine diag = {{q1[0], q1[2]}}; 3389166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com left[2] = diag.isLeft(q2[index]); 3399166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s left=(%d, %d, %d) inHull=%s\n", __FUNCTION__, floatSign(left[0]), 3409166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com floatSign(left[1]), floatSign(left[2]), 3419166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com q1.pointInHull(q2[index]) ? "true" : "false"); 3429166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3439166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("\n"); 3449166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 3459166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3469166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void hullIntersect(const SkDQuad& q1, const SkDQuad& q2) { 3479166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s", __FUNCTION__); 3489166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkIntersections ts; 3499166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int i1 = 0; i1 < 3; ++i1) { 3509166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDLine l1 = {{q1[i1], q1[(i1 + 1) % 3]}}; 3519166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int i2 = 0; i2 < 3; ++i2) { 3529166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDLine l2 = {{q2[i2], q2[(i2 + 1) % 3]}}; 3539166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (ts.intersect(l1, l2)) { 3549166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf(" [%d,%d]", i1, i2); 3559166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3569166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3579166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3589166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("\n"); 3599166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 3609166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3619166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void QuadraticIntersection_PointFinder() { 3629166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com pointFinder(pointFinderTestSet[0], pointFinderTestSet[4]); 3639166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com pointFinder(pointFinderTestSet[4], pointFinderTestSet[0]); 3649166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com pointFinder(pointFinderTestSet[0], pointFinderTestSet[6]); 3659166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com pointFinder(pointFinderTestSet[6], pointFinderTestSet[0]); 3669166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com hullIntersect(pointFinderTestSet[0], pointFinderTestSet[4]); 3679166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com hullIntersect(pointFinderTestSet[0], pointFinderTestSet[6]); 3689166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 3699166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3709166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void intersectionFinder(int test1, int test2) { 3719166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad1 = testSet[test1]; 3729166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com const SkDQuad& quad2 = testSet[test2]; 3739166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 3749166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t1Seed = 0.5; 3759166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t2Seed = 0.8; 3769166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t1Step = 0.1; 3779166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t2Step = 0.1; 3789166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint t1[3], t2[3]; 3799166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com bool toggle = true; 3809166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com do { 3819166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1[0] = quad1.xyAtT(t1Seed - t1Step); 3829166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1[1] = quad1.xyAtT(t1Seed); 3839166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1[2] = quad1.xyAtT(t1Seed + t1Step); 3849166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2[0] = quad2.xyAtT(t2Seed - t2Step); 3859166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2[1] = quad2.xyAtT(t2Seed); 3869166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2[2] = quad2.xyAtT(t2Seed + t2Step); 3879166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double dist[3][3]; 3889166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com dist[1][1] = t1[1].distance(t2[1]); 3899166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com int best_i = 1, best_j = 1; 3909166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int i = 0; i < 3; ++i) { 3919166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com for (int j = 0; j < 3; ++j) { 3929166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (i == 1 && j == 1) { 3939166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com continue; 3949166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 3959166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com dist[i][j] = t1[i].distance(t2[j]); 3969166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (dist[best_i][best_j] > dist[i][j]) { 3979166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com best_i = i; 3989166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com best_j = j; 3999166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4009166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4019166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4029166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (best_i == 0) { 4039166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Seed -= t1Step; 4049166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } else if (best_i == 2) { 4059166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Seed += t1Step; 4069166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4079166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (best_j == 0) { 4089166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Seed -= t2Step; 4099166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } else if (best_j == 2) { 4109166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Seed += t2Step; 4119166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4129166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (best_i == 1 && best_j == 1) { 4139166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if ((toggle ^= true)) { 4149166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Step /= 2; 4159166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } else { 4169166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Step /= 2; 4179166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4189166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4199166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } while (!t1[1].approximatelyEqual(t2[1])); 4209166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Step = t2Step = 0.1; 4219166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t10 = t1Seed - t1Step * 2; 4229166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t12 = t1Seed + t1Step * 2; 4239166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t20 = t2Seed - t2Step * 2; 4249166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com double t22 = t2Seed + t2Step * 2; 4259166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint test; 4269166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com while (!approximately_zero(t1Step)) { 4279166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com test = quad1.xyAtT(t10); 4289166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t10 += t1[1].approximatelyEqual(test) ? -t1Step : t1Step; 4299166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Step /= 2; 4309166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4319166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Step = 0.1; 4329166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com while (!approximately_zero(t1Step)) { 4339166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com test = quad1.xyAtT(t12); 4349166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t12 -= t1[1].approximatelyEqual(test) ? -t1Step : t1Step; 4359166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t1Step /= 2; 4369166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4379166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com while (!approximately_zero(t2Step)) { 4389166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com test = quad2.xyAtT(t20); 4399166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t20 += t2[1].approximatelyEqual(test) ? -t2Step : t2Step; 4409166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Step /= 2; 4419166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4429166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Step = 0.1; 4439166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com while (!approximately_zero(t2Step)) { 4449166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com test = quad2.xyAtT(t22); 4459166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t22 -= t2[1].approximatelyEqual(test) ? -t2Step : t2Step; 4469166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t2Step /= 2; 4479166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com } 4489166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#if ONE_OFF_DEBUG 4499166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s t1=(%1.9g<%1.9g<%1.9g) t2=(%1.9g<%1.9g<%1.9g)\n", __FUNCTION__, 4509166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com t10, t1Seed, t12, t20, t2Seed, t22); 4519166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p10 = quad1.xyAtT(t10); 4529166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p1Seed = quad1.xyAtT(t1Seed); 4539166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p12 = quad1.xyAtT(t12); 4549166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s p1=(%1.9g,%1.9g)<(%1.9g,%1.9g)<(%1.9g,%1.9g)\n", __FUNCTION__, 4559166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com p10.fX, p10.fY, p1Seed.fX, p1Seed.fY, p12.fX, p12.fY); 4569166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p20 = quad2.xyAtT(t20); 4579166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p2Seed = quad2.xyAtT(t2Seed); 4589166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDPoint p22 = quad2.xyAtT(t22); 4599166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com SkDebugf("%s p2=(%1.9g,%1.9g)<(%1.9g,%1.9g)<(%1.9g,%1.9g)\n", __FUNCTION__, 4609166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com p20.fX, p20.fY, p2Seed.fX, p2Seed.fY, p22.fX, p22.fY); 4619166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#endif 4629166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 4639166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 4649166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.comstatic void QuadraticIntersection_IntersectionFinder() { 4659166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com intersectionFinder(0, 1); 4669166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 4679166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 468ad65a3e5fb1f94699f183551b828efbcc6a133cecaryclark@google.comstatic void PathOpsQuadIntersectionTest(skiatest::Reporter* reporter) { 4699166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com oneOffTests(reporter); 4709166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com coincidentTest(reporter); 4719166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com standardTestCases(reporter); 4729166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (false) QuadraticIntersection_IntersectionFinder(); 4739166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (false) QuadraticIntersection_PointFinder(); 4749166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com if (false) QuadraticIntersection_OneOffTest(reporter); 4759166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com} 4769166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 4779166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com 4789166dcb3a0e8784bea83d76ae01aa338c049ae05caryclark@google.com#include "TestClassDef.h" 479ad65a3e5fb1f94699f183551b828efbcc6a133cecaryclark@google.comDEFINE_TESTCLASS_SHORT(PathOpsQuadIntersectionTest) 480b3f0921fba9457ba7ea79f220d8c1ec9345bfd3acaryclark@google.comDEFINE_TESTCLASS_SHORT(QuadraticIntersection_OneOffTest) 481