| |
| /* |
| * 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 "SkPaint.h" |
| #include "SkPath.h" |
| #include "SkParse.h" |
| #include "SkParsePath.h" |
| #include "SkPathEffect.h" |
| #include "SkRandom.h" |
| #include "SkReader32.h" |
| #include "SkSize.h" |
| #include "SkWriter32.h" |
| |
| // assert that we always |
| // start with a moveTo |
| // only have 1 moveTo |
| // only have Lines after that |
| // end with a single close |
| // only have (at most) 1 close |
| // |
| static void test_poly(skiatest::Reporter* reporter, const SkPath& path, |
| const SkPoint srcPts[], int count, bool expectClose) { |
| SkPath::RawIter iter(path); |
| SkPoint pts[4]; |
| |
| bool firstTime = true; |
| bool foundClose = false; |
| for (;;) { |
| switch (iter.next(pts)) { |
| case SkPath::kMove_Verb: |
| REPORTER_ASSERT(reporter, firstTime); |
| REPORTER_ASSERT(reporter, pts[0] == srcPts[0]); |
| srcPts++; |
| firstTime = false; |
| break; |
| case SkPath::kLine_Verb: |
| REPORTER_ASSERT(reporter, !firstTime); |
| REPORTER_ASSERT(reporter, pts[1] == srcPts[0]); |
| srcPts++; |
| break; |
| case SkPath::kQuad_Verb: |
| REPORTER_ASSERT(reporter, !"unexpected quad verb"); |
| break; |
| case SkPath::kCubic_Verb: |
| REPORTER_ASSERT(reporter, !"unexpected cubic verb"); |
| break; |
| case SkPath::kClose_Verb: |
| REPORTER_ASSERT(reporter, !firstTime); |
| REPORTER_ASSERT(reporter, !foundClose); |
| REPORTER_ASSERT(reporter, expectClose); |
| foundClose = true; |
| break; |
| case SkPath::kDone_Verb: |
| goto DONE; |
| } |
| } |
| DONE: |
| REPORTER_ASSERT(reporter, foundClose == expectClose); |
| } |
| |
| static void test_addPoly(skiatest::Reporter* reporter) { |
| SkPoint pts[32]; |
| SkRandom rand; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(pts); ++i) { |
| pts[i].fX = rand.nextSScalar1(); |
| pts[i].fY = rand.nextSScalar1(); |
| } |
| |
| for (int doClose = 0; doClose <= 1; ++doClose) { |
| for (size_t count = 1; count <= SK_ARRAY_COUNT(pts); ++count) { |
| SkPath path; |
| path.addPoly(pts, count, SkToBool(doClose)); |
| test_poly(reporter, path, pts, count, SkToBool(doClose)); |
| } |
| } |
| } |
| |
| static void test_strokerec(skiatest::Reporter* reporter) { |
| SkStrokeRec rec(SkStrokeRec::kFill_InitStyle); |
| REPORTER_ASSERT(reporter, rec.isFillStyle()); |
| |
| rec.setHairlineStyle(); |
| REPORTER_ASSERT(reporter, rec.isHairlineStyle()); |
| |
| rec.setStrokeStyle(SK_Scalar1, false); |
| REPORTER_ASSERT(reporter, SkStrokeRec::kStroke_Style == rec.getStyle()); |
| |
| rec.setStrokeStyle(SK_Scalar1, true); |
| REPORTER_ASSERT(reporter, SkStrokeRec::kStrokeAndFill_Style == rec.getStyle()); |
| |
| rec.setStrokeStyle(0, false); |
| REPORTER_ASSERT(reporter, SkStrokeRec::kHairline_Style == rec.getStyle()); |
| |
| rec.setStrokeStyle(0, true); |
| REPORTER_ASSERT(reporter, SkStrokeRec::kFill_Style == rec.getStyle()); |
| } |
| |
| /** |
| * cheapIsDirection can take a shortcut when a path is marked convex. |
| * This function ensures that we always test cheapIsDirection when the path |
| * is flagged with unknown convexity status. |
| */ |
| static void check_direction(SkPath* path, |
| SkPath::Direction expectedDir, |
| skiatest::Reporter* reporter) { |
| if (SkPath::kConvex_Convexity == path->getConvexity()) { |
| REPORTER_ASSERT(reporter, path->cheapIsDirection(expectedDir)); |
| path->setConvexity(SkPath::kUnknown_Convexity); |
| } |
| REPORTER_ASSERT(reporter, path->cheapIsDirection(expectedDir)); |
| } |
| |
| static void test_direction(skiatest::Reporter* reporter) { |
| size_t i; |
| SkPath path; |
| REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL)); |
| REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCW_Direction)); |
| REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCCW_Direction)); |
| |
| static const char* gDegen[] = { |
| "M 10 10", |
| "M 10 10 M 20 20", |
| "M 10 10 L 20 20", |
| "M 10 10 L 10 10 L 10 10", |
| "M 10 10 Q 10 10 10 10", |
| "M 10 10 C 10 10 10 10 10 10", |
| }; |
| for (i = 0; i < SK_ARRAY_COUNT(gDegen); ++i) { |
| path.reset(); |
| bool valid = SkParsePath::FromSVGString(gDegen[i], &path); |
| REPORTER_ASSERT(reporter, valid); |
| REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL)); |
| } |
| |
| static const char* gCW[] = { |
| "M 10 10 L 10 10 Q 20 10 20 20", |
| "M 10 10 C 20 10 20 20 20 20", |
| "M 20 10 Q 20 20 30 20 L 10 20", // test double-back at y-max |
| }; |
| for (i = 0; i < SK_ARRAY_COUNT(gCW); ++i) { |
| path.reset(); |
| bool valid = SkParsePath::FromSVGString(gCW[i], &path); |
| REPORTER_ASSERT(reporter, valid); |
| check_direction(&path, SkPath::kCW_Direction, reporter); |
| } |
| |
| static const char* gCCW[] = { |
| "M 10 10 L 10 10 Q 20 10 20 -20", |
| "M 10 10 C 20 10 20 -20 20 -20", |
| "M 20 10 Q 20 20 10 20 L 30 20", // test double-back at y-max |
| }; |
| for (i = 0; i < SK_ARRAY_COUNT(gCCW); ++i) { |
| path.reset(); |
| bool valid = SkParsePath::FromSVGString(gCCW[i], &path); |
| REPORTER_ASSERT(reporter, valid); |
| check_direction(&path, SkPath::kCCW_Direction, reporter); |
| } |
| |
| // Test two donuts, each wound a different direction. Only the outer contour |
| // determines the cheap direction |
| path.reset(); |
| path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCW_Direction); |
| path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCCW_Direction); |
| check_direction(&path, SkPath::kCW_Direction, reporter); |
| |
| path.reset(); |
| path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCW_Direction); |
| path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCCW_Direction); |
| check_direction(&path, SkPath::kCCW_Direction, reporter); |
| |
| #ifdef SK_SCALAR_IS_FLOAT |
| // triangle with one point really far from the origin. |
| path.reset(); |
| // the first point is roughly 1.05e10, 1.05e10 |
| path.moveTo(SkFloatToScalar(SkBits2Float(0x501c7652)), SkFloatToScalar(SkBits2Float(0x501c7652))); |
| path.lineTo(110 * SK_Scalar1, -10 * SK_Scalar1); |
| path.lineTo(-10 * SK_Scalar1, 60 * SK_Scalar1); |
| check_direction(&path, SkPath::kCCW_Direction, reporter); |
| #endif |
| } |
| |
| static void add_rect(SkPath* path, const SkRect& r) { |
| path->moveTo(r.fLeft, r.fTop); |
| path->lineTo(r.fRight, r.fTop); |
| path->lineTo(r.fRight, r.fBottom); |
| path->lineTo(r.fLeft, r.fBottom); |
| path->close(); |
| } |
| |
| static void test_bounds(skiatest::Reporter* reporter) { |
| static const SkRect rects[] = { |
| { SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(160) }, |
| { SkIntToScalar(610), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(199) }, |
| { SkIntToScalar(10), SkIntToScalar(198), SkIntToScalar(610), SkIntToScalar(199) }, |
| { SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(10), SkIntToScalar(199) }, |
| }; |
| |
| SkPath path0, path1; |
| for (size_t i = 0; i < SK_ARRAY_COUNT(rects); ++i) { |
| path0.addRect(rects[i]); |
| add_rect(&path1, rects[i]); |
| } |
| |
| REPORTER_ASSERT(reporter, path0.getBounds() == path1.getBounds()); |
| } |
| |
| static void stroke_cubic(const SkPoint pts[4]) { |
| SkPath path; |
| path.moveTo(pts[0]); |
| path.cubicTo(pts[1], pts[2], pts[3]); |
| |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(SK_Scalar1 * 2); |
| |
| SkPath fill; |
| paint.getFillPath(path, &fill); |
| } |
| |
| // just ensure this can run w/o any SkASSERTS firing in the debug build |
| // we used to assert due to differences in how we determine a degenerate vector |
| // but that was fixed with the introduction of SkPoint::CanNormalize |
| static void stroke_tiny_cubic() { |
| SkPoint p0[] = { |
| { 372.0f, 92.0f }, |
| { 372.0f, 92.0f }, |
| { 372.0f, 92.0f }, |
| { 372.0f, 92.0f }, |
| }; |
| |
| stroke_cubic(p0); |
| |
| SkPoint p1[] = { |
| { 372.0f, 92.0f }, |
| { 372.0007f, 92.000755f }, |
| { 371.99927f, 92.003922f }, |
| { 371.99826f, 92.003899f }, |
| }; |
| |
| stroke_cubic(p1); |
| } |
| |
| static void check_close(skiatest::Reporter* reporter, const SkPath& path) { |
| for (int i = 0; i < 2; ++i) { |
| SkPath::Iter iter(path, SkToBool(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); |
| |
| stroke_tiny_cubic(); |
| } |
| |
| 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*SK_Scalar1, 20*SK_Scalar1); |
| line.lineTo(-12*SK_Scalar1, -20*SK_Scalar1); |
| line.close(); |
| check_convexity(reporter, pt, SkPath::kConvex_Convexity); |
| |
| SkPath triLeft; |
| triLeft.moveTo(0, 0); |
| triLeft.lineTo(SK_Scalar1, 0); |
| triLeft.lineTo(SK_Scalar1, SK_Scalar1); |
| triLeft.close(); |
| check_convexity(reporter, triLeft, SkPath::kConvex_Convexity); |
| |
| SkPath triRight; |
| triRight.moveTo(0, 0); |
| triRight.lineTo(-SK_Scalar1, 0); |
| triRight.lineTo(SK_Scalar1, SK_Scalar1); |
| triRight.close(); |
| check_convexity(reporter, triRight, SkPath::kConvex_Convexity); |
| |
| SkPath square; |
| square.moveTo(0, 0); |
| square.lineTo(SK_Scalar1, 0); |
| square.lineTo(SK_Scalar1, SK_Scalar1); |
| square.lineTo(0, SK_Scalar1); |
| 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(SK_Scalar1, 0); |
| redundantSquare.lineTo(SK_Scalar1, 0); |
| redundantSquare.lineTo(SK_Scalar1, 0); |
| redundantSquare.lineTo(SK_Scalar1, SK_Scalar1); |
| redundantSquare.lineTo(SK_Scalar1, SK_Scalar1); |
| redundantSquare.lineTo(SK_Scalar1, SK_Scalar1); |
| redundantSquare.lineTo(0, SK_Scalar1); |
| redundantSquare.lineTo(0, SK_Scalar1); |
| redundantSquare.lineTo(0, SK_Scalar1); |
| 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(SK_Scalar1, SK_Scalar1); |
| bowTie.lineTo(SK_Scalar1, SK_Scalar1); |
| bowTie.lineTo(SK_Scalar1, SK_Scalar1); |
| bowTie.lineTo(SK_Scalar1, 0); |
| bowTie.lineTo(SK_Scalar1, 0); |
| bowTie.lineTo(SK_Scalar1, 0); |
| bowTie.lineTo(0, SK_Scalar1); |
| bowTie.lineTo(0, SK_Scalar1); |
| bowTie.lineTo(0, SK_Scalar1); |
| bowTie.close(); |
| check_convexity(reporter, bowTie, SkPath::kConcave_Convexity); |
| |
| SkPath spiral; |
| spiral.moveTo(0, 0); |
| spiral.lineTo(100*SK_Scalar1, 0); |
| spiral.lineTo(100*SK_Scalar1, 100*SK_Scalar1); |
| spiral.lineTo(0, 100*SK_Scalar1); |
| spiral.lineTo(0, 50*SK_Scalar1); |
| spiral.lineTo(50*SK_Scalar1, 50*SK_Scalar1); |
| spiral.lineTo(50*SK_Scalar1, 75*SK_Scalar1); |
| spiral.close(); |
| check_convexity(reporter, spiral, SkPath::kConcave_Convexity); |
| |
| SkPath dent; |
| dent.moveTo(0, 0); |
| dent.lineTo(100*SK_Scalar1, 100*SK_Scalar1); |
| dent.lineTo(0, 100*SK_Scalar1); |
| dent.lineTo(-50*SK_Scalar1, 200*SK_Scalar1); |
| dent.lineTo(-200*SK_Scalar1, 100*SK_Scalar1); |
| 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, SkIntToScalar(10)); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| path.addCircle(0, 0, SkIntToScalar(10)); // 2nd circle |
| REPORTER_ASSERT(reporter, C == SkPath::ComputeConvexity(path)); |
| path.reset(); |
| path.addRect(0, 0, SkIntToScalar(10), SkIntToScalar(10), SkPath::kCCW_Direction); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| REPORTER_ASSERT(reporter, path.cheapIsDirection(SkPath::kCCW_Direction)); |
| path.reset(); |
| path.addRect(0, 0, SkIntToScalar(10), SkIntToScalar(10), SkPath::kCW_Direction); |
| REPORTER_ASSERT(reporter, V == SkPath::ComputeConvexity(path)); |
| REPORTER_ASSERT(reporter, path.cheapIsDirection(SkPath::kCW_Direction)); |
| |
| 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); |
| } |
| } |
| |
| static void test_isLine(skiatest::Reporter* reporter) { |
| SkPath path; |
| SkPoint pts[2]; |
| const SkScalar value = SkIntToScalar(5); |
| |
| REPORTER_ASSERT(reporter, !path.isLine(NULL)); |
| |
| // set some non-zero values |
| pts[0].set(value, value); |
| pts[1].set(value, value); |
| REPORTER_ASSERT(reporter, !path.isLine(pts)); |
| // check that pts was untouched |
| REPORTER_ASSERT(reporter, pts[0].equals(value, value)); |
| REPORTER_ASSERT(reporter, pts[1].equals(value, value)); |
| |
| const SkScalar moveX = SkIntToScalar(1); |
| const SkScalar moveY = SkIntToScalar(2); |
| SkASSERT(value != moveX && value != moveY); |
| |
| path.moveTo(moveX, moveY); |
| REPORTER_ASSERT(reporter, !path.isLine(NULL)); |
| REPORTER_ASSERT(reporter, !path.isLine(pts)); |
| // check that pts was untouched |
| REPORTER_ASSERT(reporter, pts[0].equals(value, value)); |
| REPORTER_ASSERT(reporter, pts[1].equals(value, value)); |
| |
| const SkScalar lineX = SkIntToScalar(2); |
| const SkScalar lineY = SkIntToScalar(2); |
| SkASSERT(value != lineX && value != lineY); |
| |
| path.lineTo(lineX, lineY); |
| REPORTER_ASSERT(reporter, path.isLine(NULL)); |
| |
| REPORTER_ASSERT(reporter, !pts[0].equals(moveX, moveY)); |
| REPORTER_ASSERT(reporter, !pts[1].equals(lineX, lineY)); |
| REPORTER_ASSERT(reporter, path.isLine(pts)); |
| REPORTER_ASSERT(reporter, pts[0].equals(moveX, moveY)); |
| REPORTER_ASSERT(reporter, pts[1].equals(lineX, lineY)); |
| |
| path.lineTo(0, 0); // too many points/verbs |
| REPORTER_ASSERT(reporter, !path.isLine(NULL)); |
| REPORTER_ASSERT(reporter, !path.isLine(pts)); |
| REPORTER_ASSERT(reporter, pts[0].equals(moveX, moveY)); |
| REPORTER_ASSERT(reporter, pts[1].equals(lineX, lineY)); |
| } |
| |
| // 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)); |
| } |
| |
| static void test_flattening(skiatest::Reporter* reporter) { |
| SkPath p; |
| |
| static const SkPoint pts[] = { |
| { 0, 0 }, |
| { SkIntToScalar(10), SkIntToScalar(10) }, |
| { SkIntToScalar(20), SkIntToScalar(10) }, { SkIntToScalar(20), 0 }, |
| { 0, 0 }, { 0, SkIntToScalar(10) }, { SkIntToScalar(1), SkIntToScalar(10) } |
| }; |
| p.moveTo(pts[0]); |
| p.lineTo(pts[1]); |
| p.quadTo(pts[2], pts[3]); |
| p.cubicTo(pts[4], pts[5], pts[6]); |
| |
| SkWriter32 writer(100); |
| p.flatten(writer); |
| size_t size = writer.size(); |
| SkAutoMalloc storage(size); |
| writer.flatten(storage.get()); |
| SkReader32 reader(storage.get(), size); |
| |
| SkPath p1; |
| REPORTER_ASSERT(reporter, p1 != p); |
| p1.unflatten(reader); |
| REPORTER_ASSERT(reporter, p1 == p); |
| } |
| |
| static void test_transform(skiatest::Reporter* reporter) { |
| SkPath p, p1; |
| |
| static const SkPoint pts[] = { |
| { 0, 0 }, |
| { SkIntToScalar(10), SkIntToScalar(10) }, |
| { SkIntToScalar(20), SkIntToScalar(10) }, { SkIntToScalar(20), 0 }, |
| { 0, 0 }, { 0, SkIntToScalar(10) }, { SkIntToScalar(1), SkIntToScalar(10) } |
| }; |
| p.moveTo(pts[0]); |
| p.lineTo(pts[1]); |
| p.quadTo(pts[2], pts[3]); |
| p.cubicTo(pts[4], pts[5], pts[6]); |
| |
| SkMatrix matrix; |
| matrix.reset(); |
| p.transform(matrix, &p1); |
| REPORTER_ASSERT(reporter, p == p1); |
| |
| matrix.setScale(SK_Scalar1 * 2, SK_Scalar1 * 3); |
| p.transform(matrix, &p1); |
| SkPoint pts1[7]; |
| int count = p1.getPoints(pts1, 7); |
| REPORTER_ASSERT(reporter, 7 == count); |
| for (int i = 0; i < count; ++i) { |
| SkPoint newPt = SkPoint::Make(pts[i].fX * 2, pts[i].fY * 3); |
| REPORTER_ASSERT(reporter, newPt == pts1[i]); |
| } |
| } |
| |
| static void test_zero_length_paths(skiatest::Reporter* reporter) { |
| SkPath p; |
| SkPoint pt; |
| SkRect bounds; |
| |
| // Lone moveTo case |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 1 == p.countPoints()); |
| p.getLastPt(&pt); |
| REPORTER_ASSERT(reporter, pt.fX == SK_Scalar1); |
| REPORTER_ASSERT(reporter, pt.fY == SK_Scalar1); |
| bounds.set(0, 0, 0, 0); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // MoveTo-MoveTo case |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 2 == p.countPoints()); |
| p.getLastPt(&pt); |
| REPORTER_ASSERT(reporter, pt.fX == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, pt.fY == SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-close case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.close(); |
| bounds.set(0, 0, 0, 0); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 1 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-close-moveTo-close case |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.close(); |
| bounds.set(SK_Scalar1, SK_Scalar1, 2*SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 2 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-line case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.lineTo(SK_Scalar1, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 2 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-lineTo-moveTo-lineTo case |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.lineTo(SK_Scalar1*2, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 4 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-line-close case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.lineTo(SK_Scalar1, SK_Scalar1); |
| p.close(); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 2 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-line-close-moveTo-line-close case |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.lineTo(SK_Scalar1*2, SK_Scalar1); |
| p.close(); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 4 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-quadTo case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.quadTo(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 3 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-quadTo-close case |
| p.close(); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 3 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-quadTo-moveTo-quadTo case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.quadTo(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.quadTo(SK_Scalar1*2, SK_Scalar1, SK_Scalar1*2, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 6 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-cubicTo case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.cubicTo(SK_Scalar1, SK_Scalar1, |
| SK_Scalar1, SK_Scalar1, |
| SK_Scalar1, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 4 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-quadTo-close case |
| p.close(); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 4 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| |
| // moveTo-quadTo-moveTo-quadTo case |
| p.reset(); |
| p.moveTo(SK_Scalar1, SK_Scalar1); |
| p.cubicTo(SK_Scalar1, SK_Scalar1, |
| SK_Scalar1, SK_Scalar1, |
| SK_Scalar1, SK_Scalar1); |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.cubicTo(SK_Scalar1*2, SK_Scalar1, |
| SK_Scalar1*2, SK_Scalar1, |
| SK_Scalar1*2, SK_Scalar1); |
| bounds.set(SK_Scalar1, SK_Scalar1, SK_Scalar1*2, SK_Scalar1); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| REPORTER_ASSERT(reporter, 8 == p.countPoints()); |
| REPORTER_ASSERT(reporter, bounds == p.getBounds()); |
| } |
| |
| struct SegmentInfo { |
| SkPath fPath; |
| int fPointCount; |
| }; |
| |
| #define kCurveSegmentMask (SkPath::kQuad_SegmentMask | SkPath::kCubic_SegmentMask) |
| |
| static void test_segment_masks(skiatest::Reporter* reporter) { |
| SkPath p; |
| p.moveTo(0, 0); |
| p.quadTo(100, 100, 200, 200); |
| REPORTER_ASSERT(reporter, SkPath::kQuad_SegmentMask == p.getSegmentMasks()); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| p.cubicTo(100, 100, 200, 200, 300, 300); |
| REPORTER_ASSERT(reporter, kCurveSegmentMask == p.getSegmentMasks()); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| p.reset(); |
| p.moveTo(0, 0); |
| p.cubicTo(100, 100, 200, 200, 300, 300); |
| REPORTER_ASSERT(reporter, SkPath::kCubic_SegmentMask == p.getSegmentMasks()); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| } |
| |
| static void test_iter(skiatest::Reporter* reporter) { |
| SkPath p; |
| SkPoint pts[4]; |
| |
| // Test an iterator with no path |
| SkPath::Iter noPathIter; |
| REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb); |
| // Test that setting an empty path works |
| noPathIter.setPath(p, false); |
| REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb); |
| // Test that close path makes no difference for an empty path |
| noPathIter.setPath(p, true); |
| REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb); |
| |
| // Test an iterator with an initial empty path |
| SkPath::Iter iter(p, false); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Test that close path makes no difference |
| SkPath::Iter forceCloseIter(p, true); |
| REPORTER_ASSERT(reporter, forceCloseIter.next(pts) == SkPath::kDone_Verb); |
| |
| // Test that a move-only path produces nothing when iterated. |
| p.moveTo(SK_Scalar1, 0); |
| iter.setPath(p, false); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // No matter how many moves we add, we should still get nothing back. |
| p.moveTo(SK_Scalar1*2, 0); |
| p.moveTo(SK_Scalar1*3, 0); |
| p.moveTo(SK_Scalar1*4, 0); |
| p.moveTo(SK_Scalar1*5, 0); |
| iter.setPath(p, false); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Nor should force closing |
| forceCloseIter.setPath(p, true); |
| REPORTER_ASSERT(reporter, forceCloseIter.next(pts) == SkPath::kDone_Verb); |
| |
| // Initial closes should be ignored |
| p.reset(); |
| p.close(); |
| iter.setPath(p, false); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| // Even if force closed |
| forceCloseIter.setPath(p, true); |
| REPORTER_ASSERT(reporter, forceCloseIter.next(pts) == SkPath::kDone_Verb); |
| |
| // Move/close sequences should also be ignored |
| p.reset(); |
| p.close(); |
| p.moveTo(SK_Scalar1, 0); |
| p.close(); |
| p.close(); |
| p.moveTo(SK_Scalar1*2, 0); |
| p.close(); |
| p.moveTo(SK_Scalar1*3, 0); |
| p.moveTo(SK_Scalar1*4, 0); |
| p.close(); |
| iter.setPath(p, false); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| // Even if force closed |
| forceCloseIter.setPath(p, true); |
| REPORTER_ASSERT(reporter, forceCloseIter.next(pts) == SkPath::kDone_Verb); |
| |
| // The GM degeneratesegments.cpp test is more extensive |
| } |
| |
| static void test_raw_iter(skiatest::Reporter* reporter) { |
| SkPath p; |
| SkPoint pts[4]; |
| |
| // Test an iterator with no path |
| SkPath::RawIter noPathIter; |
| REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb); |
| // Test that setting an empty path works |
| noPathIter.setPath(p); |
| REPORTER_ASSERT(reporter, noPathIter.next(pts) == SkPath::kDone_Verb); |
| |
| // Test an iterator with an initial empty path |
| SkPath::RawIter iter(p); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Test that a move-only path returns the move. |
| p.moveTo(SK_Scalar1, 0); |
| iter.setPath(p); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1); |
| REPORTER_ASSERT(reporter, pts[0].fY == 0); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // No matter how many moves we add, we should get them all back |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.moveTo(SK_Scalar1*3, SK_Scalar1*2); |
| iter.setPath(p); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1); |
| REPORTER_ASSERT(reporter, pts[0].fY == 0); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*3); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Initial close is never ever stored |
| p.reset(); |
| p.close(); |
| iter.setPath(p); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Move/close sequences |
| p.reset(); |
| p.close(); // Not stored, no purpose |
| p.moveTo(SK_Scalar1, 0); |
| p.close(); |
| p.close(); // Not stored, no purpose |
| p.moveTo(SK_Scalar1*2, SK_Scalar1); |
| p.close(); |
| p.moveTo(SK_Scalar1*3, SK_Scalar1*2); |
| p.moveTo(SK_Scalar1*4, SK_Scalar1*3); |
| p.close(); |
| iter.setPath(p); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1); |
| REPORTER_ASSERT(reporter, pts[0].fY == 0); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1); |
| REPORTER_ASSERT(reporter, pts[0].fY == 0); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*3); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*2); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kMove_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*4); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*3); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kClose_Verb); |
| REPORTER_ASSERT(reporter, pts[0].fX == SK_Scalar1*4); |
| REPORTER_ASSERT(reporter, pts[0].fY == SK_Scalar1*3); |
| REPORTER_ASSERT(reporter, iter.next(pts) == SkPath::kDone_Verb); |
| |
| // Generate random paths and verify |
| SkPoint randomPts[25]; |
| for (int i = 0; i < 5; ++i) { |
| for (int j = 0; j < 5; ++j) { |
| randomPts[i*5+j].set(SK_Scalar1*i, SK_Scalar1*j); |
| } |
| } |
| |
| // Max of 10 segments, max 3 points per segment |
| SkRandom rand(9876543); |
| SkPoint expectedPts[31]; // May have leading moveTo |
| SkPath::Verb expectedVerbs[22]; // May have leading moveTo |
| SkPath::Verb nextVerb; |
| |
| for (int i = 0; i < 500; ++i) { |
| p.reset(); |
| bool lastWasClose = true; |
| bool haveMoveTo = false; |
| SkPoint lastMoveToPt = { 0, 0 }; |
| int numPoints = 0; |
| int numVerbs = (rand.nextU() >> 16) % 10; |
| int numIterVerbs = 0; |
| for (int j = 0; j < numVerbs; ++j) { |
| do { |
| nextVerb = static_cast<SkPath::Verb>((rand.nextU() >> 16) % SkPath::kDone_Verb); |
| } while (lastWasClose && nextVerb == SkPath::kClose_Verb); |
| switch (nextVerb) { |
| case SkPath::kMove_Verb: |
| expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25]; |
| p.moveTo(expectedPts[numPoints]); |
| lastMoveToPt = expectedPts[numPoints]; |
| numPoints += 1; |
| lastWasClose = false; |
| haveMoveTo = true; |
| break; |
| case SkPath::kLine_Verb: |
| if (!haveMoveTo) { |
| expectedPts[numPoints++] = lastMoveToPt; |
| expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb; |
| haveMoveTo = true; |
| } |
| expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25]; |
| p.lineTo(expectedPts[numPoints]); |
| numPoints += 1; |
| lastWasClose = false; |
| break; |
| case SkPath::kQuad_Verb: |
| if (!haveMoveTo) { |
| expectedPts[numPoints++] = lastMoveToPt; |
| expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb; |
| haveMoveTo = true; |
| } |
| expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25]; |
| expectedPts[numPoints + 1] = randomPts[(rand.nextU() >> 16) % 25]; |
| p.quadTo(expectedPts[numPoints], expectedPts[numPoints + 1]); |
| numPoints += 2; |
| lastWasClose = false; |
| break; |
| case SkPath::kCubic_Verb: |
| if (!haveMoveTo) { |
| expectedPts[numPoints++] = lastMoveToPt; |
| expectedVerbs[numIterVerbs++] = SkPath::kMove_Verb; |
| haveMoveTo = true; |
| } |
| expectedPts[numPoints] = randomPts[(rand.nextU() >> 16) % 25]; |
| expectedPts[numPoints + 1] = randomPts[(rand.nextU() >> 16) % 25]; |
| expectedPts[numPoints + 2] = randomPts[(rand.nextU() >> 16) % 25]; |
| p.cubicTo(expectedPts[numPoints], expectedPts[numPoints + 1], |
| expectedPts[numPoints + 2]); |
| numPoints += 3; |
| lastWasClose = false; |
| break; |
| case SkPath::kClose_Verb: |
| p.close(); |
| haveMoveTo = false; |
| lastWasClose = true; |
| break; |
| default:; |
| } |
| expectedVerbs[numIterVerbs++] = nextVerb; |
| } |
| |
| iter.setPath(p); |
| numVerbs = numIterVerbs; |
| numIterVerbs = 0; |
| int numIterPts = 0; |
| SkPoint lastMoveTo; |
| SkPoint lastPt; |
| lastMoveTo.set(0, 0); |
| lastPt.set(0, 0); |
| while ((nextVerb = iter.next(pts)) != SkPath::kDone_Verb) { |
| REPORTER_ASSERT(reporter, nextVerb == expectedVerbs[numIterVerbs]); |
| numIterVerbs++; |
| switch (nextVerb) { |
| case SkPath::kMove_Verb: |
| REPORTER_ASSERT(reporter, numIterPts < numPoints); |
| REPORTER_ASSERT(reporter, pts[0] == expectedPts[numIterPts]); |
| lastPt = lastMoveTo = pts[0]; |
| numIterPts += 1; |
| break; |
| case SkPath::kLine_Verb: |
| REPORTER_ASSERT(reporter, numIterPts < numPoints + 1); |
| REPORTER_ASSERT(reporter, pts[0] == lastPt); |
| REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]); |
| lastPt = pts[1]; |
| numIterPts += 1; |
| break; |
| case SkPath::kQuad_Verb: |
| REPORTER_ASSERT(reporter, numIterPts < numPoints + 2); |
| REPORTER_ASSERT(reporter, pts[0] == lastPt); |
| REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]); |
| REPORTER_ASSERT(reporter, pts[2] == expectedPts[numIterPts + 1]); |
| lastPt = pts[2]; |
| numIterPts += 2; |
| break; |
| case SkPath::kCubic_Verb: |
| REPORTER_ASSERT(reporter, numIterPts < numPoints + 3); |
| REPORTER_ASSERT(reporter, pts[0] == lastPt); |
| REPORTER_ASSERT(reporter, pts[1] == expectedPts[numIterPts]); |
| REPORTER_ASSERT(reporter, pts[2] == expectedPts[numIterPts + 1]); |
| REPORTER_ASSERT(reporter, pts[3] == expectedPts[numIterPts + 2]); |
| lastPt = pts[3]; |
| numIterPts += 3; |
| break; |
| case SkPath::kClose_Verb: |
| REPORTER_ASSERT(reporter, pts[0] == lastMoveTo); |
| lastPt = lastMoveTo; |
| break; |
| default:; |
| } |
| } |
| REPORTER_ASSERT(reporter, numIterPts == numPoints); |
| REPORTER_ASSERT(reporter, numIterVerbs == numVerbs); |
| } |
| } |
| |
| static void check_for_circle(skiatest::Reporter* reporter, |
| const SkPath& path, bool expected) { |
| SkRect rect; |
| REPORTER_ASSERT(reporter, path.isOval(&rect) == expected); |
| if (expected) { |
| REPORTER_ASSERT(reporter, rect.height() == rect.width()); |
| } |
| } |
| |
| static void test_circle_skew(skiatest::Reporter* reporter, |
| const SkPath& path) { |
| SkPath tmp; |
| |
| SkMatrix m; |
| m.setSkew(SkIntToScalar(3), SkIntToScalar(5)); |
| path.transform(m, &tmp); |
| check_for_circle(reporter, tmp, false); |
| } |
| |
| static void test_circle_translate(skiatest::Reporter* reporter, |
| const SkPath& path) { |
| SkPath tmp; |
| |
| // translate at small offset |
| SkMatrix m; |
| m.setTranslate(SkIntToScalar(15), SkIntToScalar(15)); |
| path.transform(m, &tmp); |
| check_for_circle(reporter, tmp, true); |
| |
| tmp.reset(); |
| m.reset(); |
| |
| // translate at a relatively big offset |
| m.setTranslate(SkIntToScalar(1000), SkIntToScalar(1000)); |
| path.transform(m, &tmp); |
| check_for_circle(reporter, tmp, true); |
| } |
| |
| static void test_circle_rotate(skiatest::Reporter* reporter, |
| const SkPath& path) { |
| for (int angle = 0; angle < 360; ++angle) { |
| SkPath tmp; |
| SkMatrix m; |
| m.setRotate(SkIntToScalar(angle)); |
| path.transform(m, &tmp); |
| |
| // TODO: a rotated circle whose rotated angle is not a mutiple of 90 |
| // degrees is not an oval anymore, this can be improved. we made this |
| // for the simplicity of our implementation. |
| if (angle % 90 == 0) { |
| check_for_circle(reporter, tmp, true); |
| } else { |
| check_for_circle(reporter, tmp, false); |
| } |
| } |
| } |
| |
| static void test_circle_with_direction(skiatest::Reporter* reporter, |
| SkPath::Direction dir) { |
| SkPath path; |
| |
| // circle at origin |
| path.addCircle(0, 0, SkIntToScalar(20), dir); |
| check_for_circle(reporter, path, true); |
| test_circle_rotate(reporter, path); |
| test_circle_translate(reporter, path); |
| test_circle_skew(reporter, path); |
| |
| // circle at an offset at (10, 10) |
| path.reset(); |
| path.addCircle(SkIntToScalar(10), SkIntToScalar(10), |
| SkIntToScalar(20), dir); |
| check_for_circle(reporter, path, true); |
| test_circle_rotate(reporter, path); |
| test_circle_translate(reporter, path); |
| test_circle_skew(reporter, path); |
| } |
| |
| static void test_circle_with_add_paths(skiatest::Reporter* reporter) { |
| SkPath path; |
| SkPath circle; |
| SkPath rect; |
| SkPath empty; |
| |
| circle.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction); |
| rect.addRect(SkIntToScalar(5), SkIntToScalar(5), |
| SkIntToScalar(20), SkIntToScalar(20), SkPath::kCW_Direction); |
| |
| SkMatrix translate; |
| translate.setTranslate(SkIntToScalar(12), SkIntToScalar(12)); |
| |
| // For simplicity, all the path concatenation related operations |
| // would mark it non-circle, though in theory it's still a circle. |
| |
| // empty + circle (translate) |
| path = empty; |
| path.addPath(circle, translate); |
| check_for_circle(reporter, path, false); |
| |
| // circle + empty (translate) |
| path = circle; |
| path.addPath(empty, translate); |
| check_for_circle(reporter, path, false); |
| |
| // test reverseAddPath |
| path = circle; |
| path.reverseAddPath(rect); |
| check_for_circle(reporter, path, false); |
| } |
| |
| static void test_circle(skiatest::Reporter* reporter) { |
| test_circle_with_direction(reporter, SkPath::kCW_Direction); |
| test_circle_with_direction(reporter, SkPath::kCCW_Direction); |
| |
| // multiple addCircle() |
| SkPath path; |
| path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction); |
| path.addCircle(0, 0, SkIntToScalar(20), SkPath::kCW_Direction); |
| check_for_circle(reporter, path, false); |
| |
| // some extra lineTo() would make isOval() fail |
| path.reset(); |
| path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction); |
| path.lineTo(0, 0); |
| check_for_circle(reporter, path, false); |
| |
| // not back to the original point |
| path.reset(); |
| path.addCircle(0, 0, SkIntToScalar(10), SkPath::kCW_Direction); |
| path.setLastPt(SkIntToScalar(5), SkIntToScalar(5)); |
| check_for_circle(reporter, path, false); |
| |
| test_circle_with_add_paths(reporter); |
| } |
| |
| static void test_oval(skiatest::Reporter* reporter) { |
| SkRect rect; |
| SkMatrix m; |
| SkPath path; |
| |
| rect = SkRect::MakeWH(SkIntToScalar(30), SkIntToScalar(50)); |
| path.addOval(rect); |
| |
| REPORTER_ASSERT(reporter, path.isOval(NULL)); |
| |
| m.setRotate(SkIntToScalar(90)); |
| SkPath tmp; |
| path.transform(m, &tmp); |
| // an oval rotated 90 degrees is still an oval. |
| REPORTER_ASSERT(reporter, tmp.isOval(NULL)); |
| |
| m.reset(); |
| m.setRotate(SkIntToScalar(30)); |
| tmp.reset(); |
| path.transform(m, &tmp); |
| // an oval rotated 30 degrees is not an oval anymore. |
| REPORTER_ASSERT(reporter, !tmp.isOval(NULL)); |
| |
| // since empty path being transformed. |
| path.reset(); |
| tmp.reset(); |
| m.reset(); |
| path.transform(m, &tmp); |
| REPORTER_ASSERT(reporter, !tmp.isOval(NULL)); |
| |
| // empty path is not an oval |
| tmp.reset(); |
| REPORTER_ASSERT(reporter, !tmp.isOval(NULL)); |
| |
| // only has moveTo()s |
| tmp.reset(); |
| tmp.moveTo(0, 0); |
| tmp.moveTo(SkIntToScalar(10), SkIntToScalar(10)); |
| REPORTER_ASSERT(reporter, !tmp.isOval(NULL)); |
| |
| // mimic WebKit's calling convention, |
| // call moveTo() first and then call addOval() |
| path.reset(); |
| path.moveTo(0, 0); |
| path.addOval(rect); |
| REPORTER_ASSERT(reporter, path.isOval(NULL)); |
| |
| // copy path |
| path.reset(); |
| tmp.reset(); |
| tmp.addOval(rect); |
| path = tmp; |
| REPORTER_ASSERT(reporter, path.isOval(NULL)); |
| } |
| |
| static 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, 0 == p.countPoints()); |
| REPORTER_ASSERT(reporter, 0 == p.getSegmentMasks()); |
| 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); |
| // we have quads or cubics |
| REPORTER_ASSERT(reporter, p.getSegmentMasks() & kCurveSegmentMask); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| |
| p.reset(); |
| REPORTER_ASSERT(reporter, 0 == p.getSegmentMasks()); |
| REPORTER_ASSERT(reporter, p.isEmpty()); |
| |
| p.addOval(bounds); |
| check_convex_bounds(reporter, p, bounds); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| |
| p.reset(); |
| p.addRect(bounds); |
| check_convex_bounds(reporter, p, bounds); |
| // we have only lines |
| REPORTER_ASSERT(reporter, SkPath::kLine_SegmentMask == p.getSegmentMasks()); |
| REPORTER_ASSERT(reporter, !p.isEmpty()); |
| |
| 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_isLine(reporter); |
| test_isRect(reporter); |
| test_zero_length_paths(reporter); |
| test_direction(reporter); |
| test_convexity(reporter); |
| test_convexity2(reporter); |
| test_close(reporter); |
| test_segment_masks(reporter); |
| test_flattening(reporter); |
| test_transform(reporter); |
| test_bounds(reporter); |
| test_iter(reporter); |
| test_raw_iter(reporter); |
| test_circle(reporter); |
| test_oval(reporter); |
| test_strokerec(reporter); |
| test_addPoly(reporter); |
| } |
| |
| #include "TestClassDef.h" |
| DEFINE_TESTCLASS("Path", PathTestClass, TestPath) |