diff options
author | caryclark <caryclark@google.com> | 2015-04-20 08:31:59 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2015-04-20 08:31:59 -0700 |
commit | 1049f1246e7be4ccb68001361efceb8933e6f81c (patch) | |
tree | 9c71ceb245856cbe2173913eaec3b0ebb490dd74 /tests/PathOpsConicIntersectionTest.cpp | |
parent | 5c476fb2776639bdbf0e974dd38d1c5d4c4ff1aa (diff) |
Now, path ops natively intersect conics, quads, and cubics in any combination. There are still a class of cubic tests that fail and a handful of undiagnosed failures from skps and fuzz tests, but things are much better overall.
Extended tests (150M+) run to completion in release in about 6 minutes; the standard test suite exceeds 100K and finishes in a few seconds on desktops.
TBR=reed
BUG=skia:3588
Review URL: https://codereview.chromium.org/1037953004
Diffstat (limited to 'tests/PathOpsConicIntersectionTest.cpp')
-rw-r--r-- | tests/PathOpsConicIntersectionTest.cpp | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/tests/PathOpsConicIntersectionTest.cpp b/tests/PathOpsConicIntersectionTest.cpp new file mode 100644 index 0000000000..1c15255f35 --- /dev/null +++ b/tests/PathOpsConicIntersectionTest.cpp @@ -0,0 +1,74 @@ +/* + * Copyright 2015 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ +#include "PathOpsTestCommon.h" +#include "SkGeometry.h" +#include "SkIntersections.h" +#include "Test.h" + +/* +manually compute the intersection of a pair of circles and see if the conic intersection matches + given two circles + construct a line connecting their centers + + */ + +static const SkDConic testSet[] = { + {{{{-4,1}, {-4,5}, {0,5}}}, 0.707106769f}, + {{{{-3,4}, {-3,1}, {0,1}}}, 0.707106769f}, + + {{{{0, 0}, {0, 1}, {1, 1}}}, 0.5f}, + {{{{1, 0}, {0, 0}, {0, 1}}}, 0.5f}, +}; + +const int testSetCount = (int) SK_ARRAY_COUNT(testSet); + +static void oneOff(skiatest::Reporter* reporter, const SkDConic& c1, const SkDConic& c2, + bool coin) { + SkASSERT(ValidConic(c1)); + SkASSERT(ValidConic(c2)); + SkIntersections intersections; + intersections.intersect(c1, c2); + if (coin && intersections.used() != 2) { + SkDebugf(""); + } + REPORTER_ASSERT(reporter, !coin || intersections.used() == 2); + double tt1, tt2; + SkDPoint xy1, xy2; + for (int pt3 = 0; pt3 < intersections.used(); ++pt3) { + tt1 = intersections[0][pt3]; + xy1 = c1.ptAtT(tt1); + tt2 = intersections[1][pt3]; + xy2 = c2.ptAtT(tt2); + const SkDPoint& iPt = intersections.pt(pt3); + REPORTER_ASSERT(reporter, xy1.approximatelyEqual(iPt)); + REPORTER_ASSERT(reporter, xy2.approximatelyEqual(iPt)); + REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2)); + } + reporter->bumpTestCount(); +} + +static void oneOff(skiatest::Reporter* reporter, int outer, int inner) { + const SkDConic& c1 = testSet[outer]; + const SkDConic& c2 = testSet[inner]; + oneOff(reporter, c1, c2, false); +} + +static void oneOffTests(skiatest::Reporter* reporter) { + for (int outer = 0; outer < testSetCount - 1; ++outer) { + for (int inner = outer + 1; inner < testSetCount; ++inner) { + oneOff(reporter, outer, inner); + } + } +} + +DEF_TEST(PathOpsConicIntersectionOneOff, reporter) { + oneOff(reporter, 0, 1); +} + +DEF_TEST(PathOpsConicIntersection, reporter) { + oneOffTests(reporter); +} |