caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 | */ |
caryclark@google.com | 8d0a524 | 2013-07-16 16:11:16 +0000 | [diff] [blame] | 7 | #include "PathOpsTestCommon.h" |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 8 | #include "SkIntersections.h" |
| 9 | #include "SkPathOpsLine.h" |
| 10 | #include "Test.h" |
| 11 | |
| 12 | // FIXME: add tests for intersecting, non-intersecting, degenerate, coincident |
| 13 | static const SkDLine tests[][2] = { |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 14 | {{{{0.00010360032320022583, 1.0172703415155411}, {0.00014114845544099808, 1.0200891587883234}}}, |
| 15 | {{{0.00010259449481964111, 1.017270140349865}, {0.00018215179443359375, 1.022890567779541}}}}, |
| 16 | |
caryclark | 19eb3b2 | 2014-07-18 05:08:14 -0700 | [diff] [blame] | 17 | #if 0 |
| 18 | // these do intersect at a pair of points, but not close enough for check results liking |
| 19 | {{{{365.848175,5081.15186}, {368,5103}}}, {{{367.967712,5102.61084}, {368.278717,5105.71045}}}}, |
| 20 | #endif |
caryclark@google.com | 1510726 | 2013-11-08 18:00:01 +0000 | [diff] [blame] | 21 | {{{{30,20}, {30,50}}}, {{{24,30}, {36,30}}}}, |
| 22 | {{{{323,193}, {-317,193}}}, {{{0,994}, {0,0}}}}, |
caryclark@google.com | 570863f | 2013-09-16 15:55:01 +0000 | [diff] [blame] | 23 | {{{{90,230}, {160,60}}}, {{{60,120}, {260,120}}}}, |
| 24 | {{{{90,230}, {160,60}}}, {{{181.176468,120}, {135.294128,120}}}}, |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 25 | {{{{181.1764678955078125f, 120}, {186.3661956787109375f, 134.7042236328125f}}}, |
caryclark@google.com | 4fdbb22 | 2013-07-23 15:27:41 +0000 | [diff] [blame] | 26 | {{{175.8309783935546875f, 141.5211334228515625f}, {187.8782806396484375f, 133.7258148193359375f}}}}, |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 27 | #if 0 // FIXME: these fail because one line is too short and appears quasi-coincident |
| 28 | {{{{158.000000, 926.000000}, {1108.00000, 926.000000}}}, |
| 29 | {{{1108.00000, 926.000000}, {1108.00000, 925.999634}}}}, |
| 30 | {{{{1108,926}, {1108,925.9996337890625}}}, {{{158,926}, {1108,926}}}}, |
| 31 | #endif |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 32 | {{{{192, 4}, {243, 4}}}, {{{246, 4}, {189, 4}}}}, |
| 33 | {{{{246, 4}, {189, 4}}}, {{{192, 4}, {243, 4}}}}, |
caryclark@google.com | 0361032 | 2013-04-18 15:58:21 +0000 | [diff] [blame] | 34 | {{{{5, 0}, {0, 5}}}, {{{5, 4}, {1, 4}}}}, |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 35 | {{{{0, 0}, {1, 0}}}, {{{1, 0}, {0, 0}}}}, |
| 36 | {{{{0, 0}, {0, 0}}}, {{{0, 0}, {1, 0}}}}, |
| 37 | {{{{0, 1}, {0, 1}}}, {{{0, 0}, {0, 2}}}}, |
| 38 | {{{{0, 0}, {1, 0}}}, {{{0, 0}, {2, 0}}}}, |
| 39 | {{{{1, 1}, {2, 2}}}, {{{0, 0}, {3, 3}}}}, |
| 40 | {{{{166.86950047022856, 112.69654129527828}, {166.86948801592692, 112.69655741235339}}}, |
| 41 | {{{166.86960700313026, 112.6965477747386}, {166.86925794355412, 112.69656471103423}}}} |
| 42 | }; |
| 43 | |
caryclark@google.com | ad65a3e | 2013-04-15 19:13:59 +0000 | [diff] [blame] | 44 | static const size_t tests_count = SK_ARRAY_COUNT(tests); |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 45 | |
| 46 | static const SkDLine noIntersect[][2] = { |
caryclark@google.com | 570863f | 2013-09-16 15:55:01 +0000 | [diff] [blame] | 47 | {{{{(double) (2 - 1e-6f),2}, {(double) (2 - 1e-6f),4}}}, |
| 48 | {{{2,1}, {2,3}}}}, |
| 49 | |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 50 | {{{{0, 0}, {1, 0}}}, {{{3, 0}, {2, 0}}}}, |
| 51 | {{{{0, 0}, {0, 0}}}, {{{1, 0}, {2, 0}}}}, |
| 52 | {{{{0, 1}, {0, 1}}}, {{{0, 3}, {0, 2}}}}, |
| 53 | {{{{0, 0}, {1, 0}}}, {{{2, 0}, {3, 0}}}}, |
| 54 | {{{{1, 1}, {2, 2}}}, {{{4, 4}, {3, 3}}}}, |
| 55 | }; |
| 56 | |
caryclark@google.com | ad65a3e | 2013-04-15 19:13:59 +0000 | [diff] [blame] | 57 | static const size_t noIntersect_count = SK_ARRAY_COUNT(noIntersect); |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 58 | |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 59 | static const SkDLine coincidentTests[][2] = { |
caryclark | 65b427c | 2014-09-18 10:32:57 -0700 | [diff] [blame] | 60 | {{{ {-1.48383003e-006,-83}, {4.2268899e-014,-60} }}, |
| 61 | {{ {9.5359502e-007,-60}, {5.08227985e-015,-83} }}}, |
| 62 | |
caryclark | dac1d17 | 2014-06-17 05:15:38 -0700 | [diff] [blame] | 63 | {{{ { 10105, 2510 }, { 10123, 2509.98999f } }}, |
| 64 | {{{10105, 2509.98999f}, { 10123, 2510 } }}}, |
| 65 | |
| 66 | {{ { { 0, 482.5 }, { -4.4408921e-016, 682.5 } } }, |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 67 | {{{0,683}, {0,482}}}}, |
| 68 | |
| 69 | {{{{1.77635684e-015,312}, {-1.24344979e-014,348}}}, |
| 70 | {{{0,348}, {0,312}}}}, |
| 71 | |
caryclark@google.com | 570863f | 2013-09-16 15:55:01 +0000 | [diff] [blame] | 72 | {{{{979.304871, 561}, {1036.69507, 291}}}, |
| 73 | {{{985.681519, 531}, {982.159790, 547.568542}}}}, |
| 74 | |
| 75 | {{{{232.159805, 547.568542}, {235.681549, 531}}}, |
| 76 | {{{286.695129,291}, {229.304855,561}}}}, |
| 77 | |
skia.committer@gmail.com | 7f1af50 | 2013-07-24 07:01:12 +0000 | [diff] [blame] | 78 | {{{{186.3661956787109375f, 134.7042236328125f}, {187.8782806396484375f, 133.7258148193359375f}}}, |
caryclark@google.com | 4fdbb22 | 2013-07-23 15:27:41 +0000 | [diff] [blame] | 79 | {{{175.8309783935546875f, 141.5211334228515625f}, {187.8782806396484375f, 133.7258148193359375f}}}}, |
| 80 | |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 81 | {{{{235.681549, 531.000000}, {280.318420, 321.000000}}}, |
caryclark@google.com | 4fdbb22 | 2013-07-23 15:27:41 +0000 | [diff] [blame] | 82 | {{{286.695129, 291.000000}, {229.304855, 561.000000}}}}, |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 83 | }; |
| 84 | |
| 85 | static const size_t coincidentTests_count = SK_ARRAY_COUNT(coincidentTests); |
| 86 | |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 87 | static void check_results(skiatest::Reporter* reporter, const SkDLine& line1, const SkDLine& line2, |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 88 | const SkIntersections& ts, bool nearAllowed) { |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 89 | for (int i = 0; i < ts.used(); ++i) { |
caryclark@google.com | 4fdbb22 | 2013-07-23 15:27:41 +0000 | [diff] [blame] | 90 | SkDPoint result1 = line1.ptAtT(ts[0][i]); |
| 91 | SkDPoint result2 = line2.ptAtT(ts[1][i]); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 92 | if (nearAllowed && result1.roughlyEqual(result2)) { |
| 93 | continue; |
| 94 | } |
caryclark | dac1d17 | 2014-06-17 05:15:38 -0700 | [diff] [blame] | 95 | if (!result1.approximatelyEqual(result2) && !ts.nearlySame(i)) { |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 96 | REPORTER_ASSERT(reporter, ts.used() != 1); |
caryclark@google.com | 4fdbb22 | 2013-07-23 15:27:41 +0000 | [diff] [blame] | 97 | result2 = line2.ptAtT(ts[1][i ^ 1]); |
caryclark | dac1d17 | 2014-06-17 05:15:38 -0700 | [diff] [blame] | 98 | if (!result1.approximatelyEqual(result2)) { |
| 99 | SkDebugf("."); |
| 100 | } |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 101 | REPORTER_ASSERT(reporter, result1.approximatelyEqual(result2)); |
| 102 | REPORTER_ASSERT(reporter, result1.approximatelyEqual(ts.pt(i).asSkPoint())); |
| 103 | } |
| 104 | } |
| 105 | } |
| 106 | |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 107 | static void testOne(skiatest::Reporter* reporter, const SkDLine& line1, const SkDLine& line2, |
| 108 | bool nearAllowed) { |
caryclark@google.com | 8d0a524 | 2013-07-16 16:11:16 +0000 | [diff] [blame] | 109 | SkASSERT(ValidLine(line1)); |
| 110 | SkASSERT(ValidLine(line2)); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 111 | SkIntersections i; |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 112 | i.allowNear(nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 113 | int pts = i.intersect(line1, line2); |
| 114 | REPORTER_ASSERT(reporter, pts); |
| 115 | REPORTER_ASSERT(reporter, pts == i.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 116 | check_results(reporter, line1, line2, i, nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 117 | if (line1[0] == line1[1] || line2[0] == line2[1]) { |
| 118 | return; |
| 119 | } |
| 120 | if (line1[0].fY == line1[1].fY) { |
| 121 | double left = SkTMin(line1[0].fX, line1[1].fX); |
| 122 | double right = SkTMax(line1[0].fX, line1[1].fX); |
| 123 | SkIntersections ts; |
| 124 | ts.horizontal(line2, left, right, line1[0].fY, line1[0].fX != left); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 125 | check_results(reporter, line2, line1, ts, nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 126 | } |
| 127 | if (line2[0].fY == line2[1].fY) { |
| 128 | double left = SkTMin(line2[0].fX, line2[1].fX); |
| 129 | double right = SkTMax(line2[0].fX, line2[1].fX); |
| 130 | SkIntersections ts; |
| 131 | ts.horizontal(line1, left, right, line2[0].fY, line2[0].fX != left); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 132 | check_results(reporter, line1, line2, ts, nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 133 | } |
| 134 | if (line1[0].fX == line1[1].fX) { |
| 135 | double top = SkTMin(line1[0].fY, line1[1].fY); |
| 136 | double bottom = SkTMax(line1[0].fY, line1[1].fY); |
| 137 | SkIntersections ts; |
| 138 | ts.vertical(line2, top, bottom, line1[0].fX, line1[0].fY != top); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 139 | check_results(reporter, line2, line1, ts, nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 140 | } |
| 141 | if (line2[0].fX == line2[1].fX) { |
| 142 | double top = SkTMin(line2[0].fY, line2[1].fY); |
| 143 | double bottom = SkTMax(line2[0].fY, line2[1].fY); |
| 144 | SkIntersections ts; |
| 145 | ts.vertical(line1, top, bottom, line2[0].fX, line2[0].fY != top); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 146 | check_results(reporter, line1, line2, ts, nearAllowed); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 147 | } |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 148 | reporter->bumpTestCount(); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 149 | } |
| 150 | |
| 151 | static void testOneCoincident(skiatest::Reporter* reporter, const SkDLine& line1, |
| 152 | const SkDLine& line2) { |
caryclark@google.com | 8d0a524 | 2013-07-16 16:11:16 +0000 | [diff] [blame] | 153 | SkASSERT(ValidLine(line1)); |
| 154 | SkASSERT(ValidLine(line2)); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 155 | SkIntersections ts; |
| 156 | int pts = ts.intersect(line1, line2); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 157 | REPORTER_ASSERT(reporter, pts == 2); |
| 158 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 159 | check_results(reporter, line1, line2, ts, false); |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 160 | if (line1[0] == line1[1] || line2[0] == line2[1]) { |
| 161 | return; |
| 162 | } |
| 163 | if (line1[0].fY == line1[1].fY) { |
| 164 | double left = SkTMin(line1[0].fX, line1[1].fX); |
| 165 | double right = SkTMax(line1[0].fX, line1[1].fX); |
| 166 | SkIntersections ts; |
| 167 | ts.horizontal(line2, left, right, line1[0].fY, line1[0].fX != left); |
| 168 | REPORTER_ASSERT(reporter, pts == 2); |
| 169 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 170 | check_results(reporter, line2, line1, ts, false); |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 171 | } |
| 172 | if (line2[0].fY == line2[1].fY) { |
| 173 | double left = SkTMin(line2[0].fX, line2[1].fX); |
| 174 | double right = SkTMax(line2[0].fX, line2[1].fX); |
| 175 | SkIntersections ts; |
| 176 | ts.horizontal(line1, left, right, line2[0].fY, line2[0].fX != left); |
| 177 | REPORTER_ASSERT(reporter, pts == 2); |
| 178 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 179 | check_results(reporter, line1, line2, ts, false); |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 180 | } |
| 181 | if (line1[0].fX == line1[1].fX) { |
| 182 | double top = SkTMin(line1[0].fY, line1[1].fY); |
| 183 | double bottom = SkTMax(line1[0].fY, line1[1].fY); |
| 184 | SkIntersections ts; |
| 185 | ts.vertical(line2, top, bottom, line1[0].fX, line1[0].fY != top); |
| 186 | REPORTER_ASSERT(reporter, pts == 2); |
| 187 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 188 | check_results(reporter, line2, line1, ts, false); |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 189 | } |
| 190 | if (line2[0].fX == line2[1].fX) { |
| 191 | double top = SkTMin(line2[0].fY, line2[1].fY); |
| 192 | double bottom = SkTMax(line2[0].fY, line2[1].fY); |
| 193 | SkIntersections ts; |
| 194 | ts.vertical(line1, top, bottom, line2[0].fX, line2[0].fY != top); |
| 195 | REPORTER_ASSERT(reporter, pts == 2); |
| 196 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 197 | check_results(reporter, line1, line2, ts, false); |
caryclark@google.com | 7eaa53d | 2013-10-02 14:49:34 +0000 | [diff] [blame] | 198 | } |
| 199 | reporter->bumpTestCount(); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 200 | } |
| 201 | |
tfarina@chromium.org | 78e7b4e | 2014-01-02 21:45:03 +0000 | [diff] [blame] | 202 | DEF_TEST(PathOpsLineIntersection, reporter) { |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 203 | size_t index; |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 204 | for (index = 0; index < coincidentTests_count; ++index) { |
| 205 | const SkDLine& line1 = coincidentTests[index][0]; |
| 206 | const SkDLine& line2 = coincidentTests[index][1]; |
| 207 | testOneCoincident(reporter, line1, line2); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 208 | } |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 209 | for (index = 0; index < tests_count; ++index) { |
| 210 | const SkDLine& line1 = tests[index][0]; |
| 211 | const SkDLine& line2 = tests[index][1]; |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 212 | testOne(reporter, line1, line2, true); |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 213 | } |
| 214 | for (index = 0; index < noIntersect_count; ++index) { |
| 215 | const SkDLine& line1 = noIntersect[index][0]; |
| 216 | const SkDLine& line2 = noIntersect[index][1]; |
| 217 | SkIntersections ts; |
| 218 | int pts = ts.intersect(line1, line2); |
skia.committer@gmail.com | 2b34fe0 | 2013-05-08 07:01:40 +0000 | [diff] [blame] | 219 | REPORTER_ASSERT(reporter, !pts); |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 220 | REPORTER_ASSERT(reporter, pts == ts.used()); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 221 | reporter->bumpTestCount(); |
caryclark@google.com | a5e5592 | 2013-05-07 18:51:31 +0000 | [diff] [blame] | 222 | } |
caryclark@google.com | 9166dcb | 2013-04-08 11:50:00 +0000 | [diff] [blame] | 223 | } |
| 224 | |
tfarina@chromium.org | 78e7b4e | 2014-01-02 21:45:03 +0000 | [diff] [blame] | 225 | DEF_TEST(PathOpsLineIntersectionOneOff, reporter) { |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 226 | int index = 0; |
| 227 | SkASSERT(index < (int) tests_count); |
caryclark | 5435929 | 2015-03-26 07:52:43 -0700 | [diff] [blame^] | 228 | testOne(reporter, tests[index][0], tests[index][1], true); |
| 229 | } |
| 230 | |
| 231 | DEF_TEST(PathOpsLineIntersectionExactOneOff, reporter) { |
| 232 | int index = 0; |
| 233 | SkASSERT(index < (int) tests_count); |
| 234 | testOne(reporter, tests[index][0], tests[index][1], false); |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 235 | } |
| 236 | |
tfarina@chromium.org | 78e7b4e | 2014-01-02 21:45:03 +0000 | [diff] [blame] | 237 | DEF_TEST(PathOpsLineIntersectionOneCoincident, reporter) { |
caryclark@google.com | 07e97fc | 2013-07-08 17:17:02 +0000 | [diff] [blame] | 238 | int index = 0; |
| 239 | SkASSERT(index < (int) coincidentTests_count); |
| 240 | const SkDLine& line1 = coincidentTests[index][0]; |
| 241 | const SkDLine& line2 = coincidentTests[index][1]; |
| 242 | testOneCoincident(reporter, line1, line2); |
| 243 | } |