| |
| /* |
| * Copyright 2011 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 "SkPath.h" |
| #include "SkParse.h" |
| #include "SkSize.h" |
| |
| static void check_close(skiatest::Reporter* reporter, const SkPath& path) { |
| for (int i = 0; i < 2; ++i) { |
| SkPath::Iter iter(path, (bool)i); |
| SkPoint mv; |
| SkPoint pts[4]; |
| SkPath::Verb v; |
| int nMT = 0; |
| int nCL = 0; |
| mv.set(0, 0); |
| while (SkPath::kDone_Verb != (v = iter.next(pts))) { |
| switch (v) { |
| case SkPath::kMove_Verb: |
| mv = pts[0]; |
| ++nMT; |
| break; |
| case SkPath::kClose_Verb: |
| REPORTER_ASSERT(reporter, mv == pts[0]); |
| ++nCL; |
| break; |
| default: |
| break; |
| } |
| } |
| // if we force a close on the interator we should have a close |
| // for every moveTo |
| REPORTER_ASSERT(reporter, !i || nMT == nCL); |
| } |
| } |
| |
| static void test_close(skiatest::Reporter* reporter) { |
| SkPath closePt; |
| closePt.moveTo(0, 0); |
| closePt.close(); |
| check_close(reporter, closePt); |
| |
| SkPath openPt; |
| openPt.moveTo(0, 0); |
| check_close(reporter, openPt); |
| |
| SkPath empty; |
| check_close(reporter, empty); |
| empty.close(); |
| check_close(reporter, empty); |
| |
| SkPath rect; |
| rect.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1); |
| check_close(reporter, rect); |
| rect.close(); |
| check_close(reporter, rect); |
| |
| SkPath quad; |
| quad.quadTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1); |
| check_close(reporter, quad); |
| quad.close(); |
| check_close(reporter, quad); |
| |
| SkPath cubic; |
| quad.cubicTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, |
| 10*SK_Scalar1, 20 * SK_Scalar1, 20*SK_Scalar1); |
| check_close(reporter, cubic); |
| cubic.close(); |
| check_close(reporter, cubic); |
| |
| SkPath line; |
| line.moveTo(SK_Scalar1, SK_Scalar1); |
| line.lineTo(10 * SK_Scalar1, 10*SK_Scalar1); |
| check_close(reporter, line); |
| line.close(); |
| check_close(reporter, line); |
| |
| SkPath rect2; |
| rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1); |
| rect2.close(); |
| rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1); |
| check_close(reporter, rect2); |
| rect2.close(); |
| check_close(reporter, rect2); |
| |
| SkPath oval3; |
| oval3.addOval(SkRect::MakeWH(SK_Scalar1*100,SK_Scalar1*100)); |
| oval3.close(); |
| oval3.addOval(SkRect::MakeWH(SK_Scalar1*200,SK_Scalar1*200)); |
| check_close(reporter, oval3); |
| oval3.close(); |
| check_close(reporter, oval3); |
| |
| SkPath moves; |
| moves.moveTo(SK_Scalar1, SK_Scalar1); |
| moves.moveTo(5 * SK_Scalar1, SK_Scalar1); |
| moves.moveTo(SK_Scalar1, 10 * SK_Scalar1); |
| moves.moveTo(10 *SK_Scalar1, SK_Scalar1); |
| check_close(reporter, moves); |
| } |
| |
| static void check_convexity(skiatest::Reporter* reporter, const SkPath& path, |
| SkPath::Convexity expected) { |
| SkPath::Convexity c = SkPath::ComputeConvexity(path); |
| REPORTER_ASSERT(reporter, c == expected); |
| } |
| |
| static void test_convexity2(skiatest::Reporter* reporter) { |
| SkPath pt; |
| pt.moveTo(0, 0); |
| pt.close(); |
| check_convexity(reporter, pt, SkPath::kConvex_Convexity); |
| |
| SkPath line; |
| line.moveTo(12, 20); |
| line.lineTo(-12, -20); |
| line.close(); |
| check_convexity(reporter, pt, SkPath::kConvex_Convexity); |
| |
| SkPath triLeft; |
| triLeft.moveTo(0, 0); |
| triLeft.lineTo(1, 0); |
| triLeft.lineTo(1, 1); |
| triLeft.close(); |
| check_convexity(reporter, triLeft, SkPath::kConvex_Convexity); |
| |
| SkPath triRight; |
| triRight.moveTo(0, 0); |
| triRight.lineTo(-1, 0); |
| triRight.lineTo(1, 1); |
| triRight.close(); |
| check_convexity(reporter, triRight, SkPath::kConvex_Convexity); |
| |
| SkPath square; |
| square.moveTo(0, 0); |
| square.lineTo(1, 0); |
| square.lineTo(1, 1); |
| square.lineTo(0, 1); |
| square.close(); |
| check_convexity(reporter, square, SkPath::kConvex_Convexity); |
| |
| SkPath redundantSquare; |
| redundantSquare.moveTo(0, 0); |
| redundantSquare.lineTo(0, 0); |
| redundantSquare.lineTo(0, 0); |
| redundantSquare.lineTo(1, 0); |
| redundantSquare.lineTo(1, 0); |
| redundantSquare.lineTo(1, 0); |
| redundantSquare.lineTo(1, 1); |
| redundantSquare.lineTo(1, 1); |
| redundantSquare.lineTo(1, 1); |
| redundantSquare.lineTo(0, 1); |
| redundantSquare.lineTo(0, 1); |
| redundantSquare.lineTo(0, 1); |
| redundantSquare.close(); |
| check_convexity(reporter, redundantSquare, SkPath::kConvex_Convexity); |
| |
| SkPath bowTie; |
| bowTie.moveTo(0, 0); |
| bowTie.lineTo(0, 0); |
| bowTie.lineTo(0, 0); |
| bowTie.lineTo(1, 1); |
| bowTie.lineTo(1, 1); |
| bowTie.lineTo(1, 1); |
| bowTie.lineTo(1, 0); |
| bowTie.lineTo(1, 0); |
| bowTie.lineTo(1, 0); |
| bowTie.lineTo(0, 1); |
| bowTie.lineTo(0, 1); |
| bowTie.lineTo(0, 1); |
| bowTie.close(); |
| check_convexity(reporter, bowTie, SkPath::kConcave_Convexity); |
| |
| SkPath spiral; |
| spiral.moveTo(0, 0); |
| spiral.lineTo(100, 0); |
| spiral.lineTo(100, 100); |
| spiral.lineTo(0, 100); |
| spiral.lineTo(0, 50); |
| spiral.lineTo(50, 50); |
| spiral.lineTo(50, 75); |
| spiral.close(); |
| check_convexity(reporter, spiral, SkPath::kConcave_Convexity); |
| |
| SkPath dent; |
| dent.moveTo(SkIntToScalar(0), SkIntToScalar(0)); |
| dent.lineTo(SkIntToScalar(100), SkIntToScalar(100)); |
| dent.lineTo(SkIntToScalar(0), SkIntToScalar(100)); |
| dent.lineTo(SkIntToScalar(-50), SkIntToScalar(200)); |
| dent.lineTo(SkIntToScalar(-200), SkIntToScalar(100)); |
| dent.close(); |
| check_convexity(reporter, dent, SkPath::kConcave_Convexity); |
| } |
| |
| static void check_convex_bounds(skiatest::Reporter* reporter, const SkPath& p, |
| const SkRect& bounds) { |
| REPORTER_ASSERT(reporter, p.isConvex()); |
| REPORTER_ASSERT(reporter, p.getBounds() == bounds); |
| |
| SkPath p2(p); |
| REPORTER_ASSERT(reporter, p2.isConvex()); |
| REPORTER_ASSERT(reporter, p2.getBounds() == bounds); |
| |
| SkPath other; |
| other.swap(p2); |
| REPORTER_ASSERT(reporter, other.isConvex()); |
| REPORTER_ASSERT(reporter, other.getBounds() == bounds); |
| } |
| |
| static void setFromString(SkPath* path, const char str[]) { |
| bool first = true; |
| while (str) { |
| SkScalar x, y; |
| str = SkParse::FindScalar(str, &x); |
| if (NULL == str) { |
| break; |
| } |
| str = SkParse::FindScalar(str, &y); |
| SkASSERT(str); |
| if (first) { |
| path->moveTo(x, y); |
| first = false; |
| } else { |
| path->lineTo(x, y); |
| } |
| } |
| } |
| |
| static void test_convexity(skiatest::Reporter* reporter) { |
| static const SkPath::Convexity C = SkPath::kConcave_Convexity; |
| static const SkPath::Convexity V = SkPath::kConvex_Convexity; |
| |
| SkPath path; |
| |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| path.addCircle(0, 0, 10); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| path.addCircle(0, 0, 10); // 2nd circle |
| REPORTER_ASSERT(reporter, C == SkPath::ComputeConvexity(path)); |
| path.reset(); |
| path.addRect(0, 0, 10, 10, SkPath::kCCW_Direction); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| path.reset(); |
| path.addRect(0, 0, 10, 10, SkPath::kCW_Direction); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| |
| static const struct { |
| const char* fPathStr; |
| SkPath::Convexity fExpectedConvexity; |
| } gRec[] = { |
| { "", SkPath::kConvex_Convexity }, |
| { "0 0", SkPath::kConvex_Convexity }, |
| { "0 0 10 10", SkPath::kConvex_Convexity }, |
| { "0 0 10 10 20 20 0 0 10 10", SkPath::kConcave_Convexity }, |
| { "0 0 10 10 10 20", SkPath::kConvex_Convexity }, |
| { "0 0 10 10 10 0", SkPath::kConvex_Convexity }, |
| { "0 0 10 10 10 0 0 10", SkPath::kConcave_Convexity }, |
| { "0 0 10 0 0 10 -10 -10", SkPath::kConcave_Convexity }, |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); ++i) { |
| SkPath path; |
| setFromString(&path, gRec[i].fPathStr); |
| SkPath::Convexity c = SkPath::ComputeConvexity(path); |
| REPORTER_ASSERT(reporter, c == gRec[i].fExpectedConvexity); |
| } |
| } |
| |
| // Simple isRect test is inline TestPath, below. |
| // test_isRect provides more extensive testing. |
| static void test_isRect(skiatest::Reporter* reporter) { |
| // passing tests (all moveTo / lineTo... |
| SkPoint r1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; |
| SkPoint r2[] = {{1, 0}, {1, 1}, {0, 1}, {0, 0}}; |
| SkPoint r3[] = {{1, 1}, {0, 1}, {0, 0}, {1, 0}}; |
| SkPoint r4[] = {{0, 1}, {0, 0}, {1, 0}, {1, 1}}; |
| SkPoint r5[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}}; |
| SkPoint r6[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}}; |
| SkPoint r7[] = {{1, 1}, {1, 0}, {0, 0}, {0, 1}}; |
| SkPoint r8[] = {{1, 0}, {0, 0}, {0, 1}, {1, 1}}; |
| SkPoint r9[] = {{0, 1}, {1, 1}, {1, 0}, {0, 0}}; |
| SkPoint ra[] = {{0, 0}, {0, .5f}, {0, 1}, {.5f, 1}, {1, 1}, {1, .5f}, |
| {1, 0}, {.5f, 0}}; |
| SkPoint rb[] = {{0, 0}, {.5f, 0}, {1, 0}, {1, .5f}, {1, 1}, {.5f, 1}, |
| {0, 1}, {0, .5f}}; |
| SkPoint rc[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}}; |
| SkPoint rd[] = {{0, 0}, {0, 1}, {1, 1}, {1, 0}, {0, 0}}; |
| SkPoint re[] = {{0, 0}, {1, 0}, {1, 0}, {1, 1}, {0, 1}}; |
| |
| // failing tests |
| SkPoint f1[] = {{0, 0}, {1, 0}, {1, 1}}; // too few points |
| SkPoint f2[] = {{0, 0}, {1, 1}, {0, 1}, {1, 0}}; // diagonal |
| SkPoint f3[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 0}, {1, 0}}; // wraps |
| SkPoint f4[] = {{0, 0}, {1, 0}, {0, 0}, {1, 0}, {1, 1}, {0, 1}}; // backs up |
| SkPoint f5[] = {{0, 0}, {1, 0}, {1, 1}, {2, 0}}; // end overshoots |
| SkPoint f6[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0, 2}}; // end overshoots |
| SkPoint f7[] = {{0, 0}, {1, 0}, {1, 1}, {0, 2}}; // end overshoots |
| SkPoint f8[] = {{0, 0}, {1, 0}, {1, 1}, {1, 0}}; // 'L' |
| |
| // failing, no close |
| SkPoint c1[] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; // close doesn't match |
| SkPoint c2[] = {{0, 0}, {1, 0}, {1, 2}, {0, 2}, {0, 1}}; // ditto |
| |
| size_t testLen[] = { |
| sizeof(r1), sizeof(r2), sizeof(r3), sizeof(r4), sizeof(r5), sizeof(r6), |
| sizeof(r7), sizeof(r8), sizeof(r9), sizeof(ra), sizeof(rb), sizeof(rc), |
| sizeof(rd), sizeof(re), |
| sizeof(f1), sizeof(f2), sizeof(f3), sizeof(f4), sizeof(f5), sizeof(f6), |
| sizeof(f7), sizeof(f8), |
| sizeof(c1), sizeof(c2) |
| }; |
| SkPoint* tests[] = { |
| r1, r2, r3, r4, r5, r6, r7, r8, r9, ra, rb, rc, rd, re, |
| f1, f2, f3, f4, f5, f6, f7, f8, |
| c1, c2 |
| }; |
| SkPoint* lastPass = re; |
| SkPoint* lastClose = f8; |
| bool fail = false; |
| bool close = true; |
| const size_t testCount = sizeof(tests) / sizeof(tests[0]); |
| size_t index; |
| for (size_t testIndex = 0; testIndex < testCount; ++testIndex) { |
| SkPath path; |
| path.moveTo(tests[testIndex][0].fX, tests[testIndex][0].fY); |
| for (index = 1; index < testLen[testIndex] / sizeof(SkPoint); ++index) { |
| path.lineTo(tests[testIndex][index].fX, tests[testIndex][index].fY); |
| } |
| if (close) { |
| path.close(); |
| } |
| REPORTER_ASSERT(reporter, fail ^ path.isRect(0)); |
| if (tests[testIndex] == lastPass) { |
| fail = true; |
| } |
| if (tests[testIndex] == lastClose) { |
| close = false; |
| } |
| } |
| |
| // fail, close then line |
| SkPath path1; |
| path1.moveTo(r1[0].fX, r1[0].fY); |
| for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) { |
| path1.lineTo(r1[index].fX, r1[index].fY); |
| } |
| path1.close(); |
| path1.lineTo(1, 0); |
| REPORTER_ASSERT(reporter, fail ^ path1.isRect(0)); |
| |
| // fail, move in the middle |
| path1.reset(); |
| path1.moveTo(r1[0].fX, r1[0].fY); |
| for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) { |
| if (index == 2) { |
| path1.moveTo(1, .5f); |
| } |
| path1.lineTo(r1[index].fX, r1[index].fY); |
| } |
| path1.close(); |
| REPORTER_ASSERT(reporter, fail ^ path1.isRect(0)); |
| |
| // fail, move on the edge |
| path1.reset(); |
| for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) { |
| path1.moveTo(r1[index - 1].fX, r1[index - 1].fY); |
| path1.lineTo(r1[index].fX, r1[index].fY); |
| } |
| path1.close(); |
| REPORTER_ASSERT(reporter, fail ^ path1.isRect(0)); |
| |
| // fail, quad |
| path1.reset(); |
| path1.moveTo(r1[0].fX, r1[0].fY); |
| for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) { |
| if (index == 2) { |
| path1.quadTo(1, .5f, 1, .5f); |
| } |
| path1.lineTo(r1[index].fX, r1[index].fY); |
| } |
| path1.close(); |
| REPORTER_ASSERT(reporter, fail ^ path1.isRect(0)); |
| |
| // fail, cubic |
| path1.reset(); |
| path1.moveTo(r1[0].fX, r1[0].fY); |
| for (index = 1; index < testLen[0] / sizeof(SkPoint); ++index) { |
| if (index == 2) { |
| path1.cubicTo(1, .5f, 1, .5f, 1, .5f); |
| } |
| path1.lineTo(r1[index].fX, r1[index].fY); |
| } |
| path1.close(); |
| REPORTER_ASSERT(reporter, fail ^ path1.isRect(0)); |
| } |
| |
| void TestPath(skiatest::Reporter* reporter); |
| void TestPath(skiatest::Reporter* reporter) { |
| { |
| SkSize size; |
| size.fWidth = 3.4f; |
| size.width(); |
| size = SkSize::Make(3,4); |
| SkISize isize = SkISize::Make(3,4); |
| } |
| |
| SkTSize<SkScalar>::Make(3,4); |
| |
| SkPath p, p2; |
| SkRect bounds, bounds2; |
| |
| REPORTER_ASSERT(reporter, p.isEmpty()); |
| REPORTER_ASSERT(reporter, p.isConvex()); |
| REPORTER_ASSERT(reporter, p.getFillType() == SkPath::kWinding_FillType); |
| REPORTER_ASSERT(reporter, !p.isInverseFillType()); |
| REPORTER_ASSERT(reporter, p == p2); |
| REPORTER_ASSERT(reporter, !(p != p2)); |
| |
| REPORTER_ASSERT(reporter, p.getBounds().isEmpty()); |
| |
| bounds.set(0, 0, SK_Scalar1, SK_Scalar1); |
| |
| p.addRoundRect(bounds, SK_Scalar1, SK_Scalar1); |
| check_convex_bounds(reporter, p, bounds); |
| |
| p.reset(); |
| p.addOval(bounds); |
| check_convex_bounds(reporter, p, bounds); |
| |
| p.reset(); |
| p.addRect(bounds); |
| check_convex_bounds(reporter, p, bounds); |
| |
| REPORTER_ASSERT(reporter, p != p2); |
| REPORTER_ASSERT(reporter, !(p == p2)); |
| |
| // does getPoints return the right result |
| REPORTER_ASSERT(reporter, p.getPoints(NULL, 5) == 4); |
| SkPoint pts[4]; |
| int count = p.getPoints(pts, 4); |
| REPORTER_ASSERT(reporter, count == 4); |
| bounds2.set(pts, 4); |
| REPORTER_ASSERT(reporter, bounds == bounds2); |
| |
| bounds.offset(SK_Scalar1*3, SK_Scalar1*4); |
| p.offset(SK_Scalar1*3, SK_Scalar1*4); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| REPORTER_ASSERT(reporter, p.isRect(NULL)); |
| bounds2.setEmpty(); |
| REPORTER_ASSERT(reporter, p.isRect(&bounds2)); |
| REPORTER_ASSERT(reporter, bounds == bounds2); |
| |
| // now force p to not be a rect |
| bounds.set(0, 0, SK_Scalar1/2, SK_Scalar1/2); |
| p.addRect(bounds); |
| REPORTER_ASSERT(reporter, !p.isRect(NULL)); |
| test_isRect(reporter); |
| |
| SkPoint pt; |
| |
| p.moveTo(SK_Scalar1, 0); |
| p.getLastPt(&pt); |
| REPORTER_ASSERT(reporter, pt.fX == SK_Scalar1); |
| |
| test_convexity(reporter); |
| test_convexity2(reporter); |
| test_close(reporter); |
| } |
| |
| #include "TestClassDef.h" |
| DEFINE_TESTCLASS("Path", PathTestClass, TestPath) |