| caryclark | 26ad22a | 2015-10-16 09:03:38 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | #include "PathOpsTestCommon.h" |
| 8 | #include "SkIntersections.h" |
| 9 | #include "SkPathOpsConic.h" |
| 10 | #include "SkPathOpsCubic.h" |
| 11 | #include "SkReduceOrder.h" |
| 12 | #include "Test.h" |
| 13 | |
| 14 | static struct cubicConic { |
| 15 | SkDCubic cubic; |
| 16 | SkDConic conic; |
| 17 | } cubicConicTests[] = { |
| 18 | {{{{188.60000610351562, 2041.5999755859375}, {188.60000610351562, 2065.39990234375}, |
| 19 | {208, 2084.800048828125}, {231.80000305175781, 2084.800048828125}}}, |
| 20 | {{{{231.80000305175781, 2084.800048828125}, {188.60000610351562, 2084.800048828125}, |
| 21 | {188.60000610351562, 2041.5999755859375}}}, 0.707107008f}}, |
| 22 | |
| 23 | {{{{231.80000305175781, 2084.800048828125}, {255.60000610351562, 2084.800048828125}, |
| 24 | {275, 2065.39990234375}, {275, 2041.5999755859375}}}, |
| 25 | {{{{275, 2041.5999755859375}, {275, 2084.800048828125}, |
| 26 | {231.80000305175781, 2084.800048828125}}}, 0.707107008f}}, |
| 27 | }; |
| 28 | |
| 29 | static const int cubicConicTests_count = (int) SK_ARRAY_COUNT(cubicConicTests); |
| 30 | |
| 31 | static void cubicConicIntersection(skiatest::Reporter* reporter, int index) { |
| 32 | const SkDCubic& cubic = cubicConicTests[index].cubic; |
| 33 | SkASSERT(ValidCubic(cubic)); |
| 34 | const SkDConic& conic = cubicConicTests[index].conic; |
| 35 | SkASSERT(ValidConic(conic)); |
| 36 | SkReduceOrder reduce1; |
| 37 | SkReduceOrder reduce2; |
| 38 | int order1 = reduce1.reduce(cubic, SkReduceOrder::kNo_Quadratics); |
| 39 | int order2 = reduce2.reduce(conic.fPts); |
| 40 | if (order1 != 4) { |
| 41 | SkDebugf("[%d] cubic order=%d\n", index, order1); |
| 42 | REPORTER_ASSERT(reporter, 0); |
| 43 | } |
| 44 | if (order2 != 3) { |
| 45 | SkDebugf("[%d] conic order=%d\n", index, order2); |
| 46 | REPORTER_ASSERT(reporter, 0); |
| 47 | } |
| 48 | SkIntersections i; |
| 49 | int roots = i.intersect(cubic, conic); |
| 50 | for (int pt = 0; pt < roots; ++pt) { |
| 51 | double tt1 = i[0][pt]; |
| 52 | SkDPoint xy1 = cubic.ptAtT(tt1); |
| 53 | double tt2 = i[1][pt]; |
| 54 | SkDPoint xy2 = conic.ptAtT(tt2); |
| 55 | if (!xy1.approximatelyEqual(xy2)) { |
| 56 | SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n", |
| 57 | __FUNCTION__, index, pt, tt1, xy1.fX, xy1.fY, tt2, xy2.fX, xy2.fY); |
| 58 | } |
| 59 | REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2)); |
| 60 | } |
| 61 | reporter->bumpTestCount(); |
| 62 | } |
| 63 | |
| 64 | DEF_TEST(PathOpsCubicConicIntersection, reporter) { |
| 65 | for (int index = 0; index < cubicConicTests_count; ++index) { |
| 66 | cubicConicIntersection(reporter, index); |
| 67 | reporter->bumpTestCount(); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | DEF_TEST(PathOpsCubicConicIntersectionOneOff, reporter) { |
| 72 | cubicConicIntersection(reporter, 1); |
| 73 | } |