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Diffstat (limited to 'tests/InsetConvexPolyTest.cpp')
-rw-r--r-- | tests/InsetConvexPolyTest.cpp | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/tests/InsetConvexPolyTest.cpp b/tests/InsetConvexPolyTest.cpp deleted file mode 100644 index e13a25a70f..0000000000 --- a/tests/InsetConvexPolyTest.cpp +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright 2017 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ -#include "Test.h" -#include "SkInsetConvexPolygon.h" - -static bool is_convex(const SkTDArray<SkPoint>& poly) { - if (poly.count() < 3) { - return false; - } - - SkVector v0 = poly[0] - poly[poly.count() - 1]; - SkVector v1 = poly[1] - poly[poly.count() - 1]; - SkScalar winding = v0.cross(v1); - - for (int i = 0; i < poly.count()-1; ++i) { - int j = i + 1; - int k = (i + 2) % poly.count(); - - SkVector v0 = poly[j] - poly[i]; - SkVector v1 = poly[k] - poly[i]; - SkScalar perpDot = v0.cross(v1); - int side = winding*perpDot; - if (side < 0) { - return false; - } - } - - return true; -} - -DEF_TEST(InsetConvexPoly, reporter) { - SkTDArray<SkPoint> rrectPoly; - - // round rect - *rrectPoly.push() = SkPoint::Make(-100, 55); - *rrectPoly.push() = SkPoint::Make(100, 55); - *rrectPoly.push() = SkPoint::Make(100 + 2.5f, 50 + 4.330127f); - *rrectPoly.push() = SkPoint::Make(100 + 3.535534f, 50 + 3.535534f); - *rrectPoly.push() = SkPoint::Make(100 + 4.330127f, 50 + 2.5f); - *rrectPoly.push() = SkPoint::Make(105, 50); - *rrectPoly.push() = SkPoint::Make(105, -50); - *rrectPoly.push() = SkPoint::Make(100 + 4.330127f, -50 - 2.5f); - *rrectPoly.push() = SkPoint::Make(100 + 3.535534f, -50 - 3.535534f); - *rrectPoly.push() = SkPoint::Make(100 + 2.5f, -50 - 4.330127f); - *rrectPoly.push() = SkPoint::Make(100, -55); - *rrectPoly.push() = SkPoint::Make(-100, -55); - *rrectPoly.push() = SkPoint::Make(-100 - 2.5f, -50 - 4.330127f); - *rrectPoly.push() = SkPoint::Make(-100 - 3.535534f, -50 - 3.535534f); - *rrectPoly.push() = SkPoint::Make(-100 - 4.330127f, -50 - 2.5f); - *rrectPoly.push() = SkPoint::Make(-105, -50); - *rrectPoly.push() = SkPoint::Make(-105, 50); - *rrectPoly.push() = SkPoint::Make(-100 - 4.330127f, 50 + 2.5f); - *rrectPoly.push() = SkPoint::Make(-100 - 3.535534f, 50 + 3.535534f); - *rrectPoly.push() = SkPoint::Make(-100 - 2.5f, 50 + 4.330127f); - REPORTER_ASSERT(reporter, is_convex(rrectPoly)); - - // inset a little - SkTDArray<SkPoint> insetPoly; - bool result = SkInsetConvexPolygon(&rrectPoly[0], rrectPoly.count(), 3, &insetPoly); - REPORTER_ASSERT(reporter, result); - REPORTER_ASSERT(reporter, is_convex(insetPoly)); - - // inset to rect - result = SkInsetConvexPolygon(&rrectPoly[0], rrectPoly.count(), 10, &insetPoly); - REPORTER_ASSERT(reporter, result); - REPORTER_ASSERT(reporter, is_convex(insetPoly)); - REPORTER_ASSERT(reporter, insetPoly.count() == 4); - if (insetPoly.count() == 4) { - REPORTER_ASSERT(reporter, insetPoly[0].equals(-95, 45)); - REPORTER_ASSERT(reporter, insetPoly[1].equals(95, 45)); - REPORTER_ASSERT(reporter, insetPoly[2].equals(95, -45)); - REPORTER_ASSERT(reporter, insetPoly[3].equals(-95, -45)); - } - - // just to full inset - // for shadows having a flat poly here is fine - // may want to revisit for strokes - result = SkInsetConvexPolygon(&rrectPoly[0], rrectPoly.count(), 55, &insetPoly); - REPORTER_ASSERT(reporter, result); - REPORTER_ASSERT(reporter, is_convex(insetPoly)); - REPORTER_ASSERT(reporter, insetPoly.count() == 4); - if (insetPoly.count() == 4) { - REPORTER_ASSERT(reporter, insetPoly[0].equals(-50, 0)); - REPORTER_ASSERT(reporter, insetPoly[1].equals(50, 0)); - REPORTER_ASSERT(reporter, insetPoly[2].equals(50, 0)); - REPORTER_ASSERT(reporter, insetPoly[3].equals(-50, 0)); - } - - // past full inset - result = SkInsetConvexPolygon(&rrectPoly[0], rrectPoly.count(), 75, &insetPoly); - REPORTER_ASSERT(reporter, !result); - - // troublesome case - SkTDArray<SkPoint> clippedRRectPoly; - *clippedRRectPoly.push() = SkPoint::Make(335.928101f, 428.219055f); - *clippedRRectPoly.push() = SkPoint::Make(330.414459f, 423.034912f); - *clippedRRectPoly.push() = SkPoint::Make(325.749084f, 417.395508f); - *clippedRRectPoly.push() = SkPoint::Make(321.931946f, 411.300842f); - *clippedRRectPoly.push() = SkPoint::Make(318.963074f, 404.750977f); - *clippedRRectPoly.push() = SkPoint::Make(316.842468f, 397.745850f); - *clippedRRectPoly.push() = SkPoint::Make(315.570068f, 390.285522f); - *clippedRRectPoly.push() = SkPoint::Make(315.145966f, 382.369965f); - *clippedRRectPoly.push() = SkPoint::Make(315.570068f, 374.454346f); - *clippedRRectPoly.push() = SkPoint::Make(316.842468f, 366.994019f); - *clippedRRectPoly.push() = SkPoint::Make(318.963074f, 359.988892f); - *clippedRRectPoly.push() = SkPoint::Make(321.931946f, 353.439056f); - *clippedRRectPoly.push() = SkPoint::Make(325.749084f, 347.344421f); - *clippedRRectPoly.push() = SkPoint::Make(330.414459f, 341.705017f); - *clippedRRectPoly.push() = SkPoint::Make(335.928101f, 336.520813f); - *clippedRRectPoly.push() = SkPoint::Make(342.289948f, 331.791901f); - *clippedRRectPoly.push() = SkPoint::Make(377.312134f, 331.791901f); - *clippedRRectPoly.push() = SkPoint::Make(381.195313f, 332.532593f); - *clippedRRectPoly.push() = SkPoint::Make(384.464935f, 334.754700f); - *clippedRRectPoly.push() = SkPoint::Make(386.687042f, 338.024292f); - *clippedRRectPoly.push() = SkPoint::Make(387.427765f, 341.907532f); - *clippedRRectPoly.push() = SkPoint::Make(387.427765f, 422.832367f); - *clippedRRectPoly.push() = SkPoint::Make(386.687042f, 426.715576f); - *clippedRRectPoly.push() = SkPoint::Make(384.464935f, 429.985168f); - *clippedRRectPoly.push() = SkPoint::Make(381.195313f, 432.207275f); - *clippedRRectPoly.push() = SkPoint::Make(377.312134f, 432.947998f); - *clippedRRectPoly.push() = SkPoint::Make(342.289948f, 432.947998f); - REPORTER_ASSERT(reporter, is_convex(clippedRRectPoly)); - - result = SkInsetConvexPolygon(&clippedRRectPoly[0], clippedRRectPoly.count(), 32.3699417f, - &insetPoly); - REPORTER_ASSERT(reporter, result); - REPORTER_ASSERT(reporter, is_convex(insetPoly)); -} |