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