744fabad47
Review URL: https://codereview.appspot.com/6256063 git-svn-id: http://skia.googlecode.com/svn/trunk@4061 2bbb7eff-a529-9590-31e7-b0007b416f81
1473 lines
51 KiB
C++
1473 lines
51 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Test.h"
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#include "SkPaint.h"
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#include "SkPath.h"
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#include "SkParse.h"
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#include "SkParsePath.h"
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#include "SkPathEffect.h"
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#include "SkRandom.h"
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#include "SkReader32.h"
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#include "SkSize.h"
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#include "SkWriter32.h"
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// assert that we always
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// start with a moveTo
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// only have 1 moveTo
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// only have Lines after that
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// end with a single close
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// only have (at most) 1 close
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//
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static void test_poly(skiatest::Reporter* reporter, const SkPath& path,
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const SkPoint srcPts[], int count, bool expectClose) {
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SkPath::RawIter iter(path);
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SkPoint pts[4];
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SkPath::Verb verb;
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bool firstTime = true;
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bool foundClose = false;
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for (;;) {
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switch (iter.next(pts)) {
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case SkPath::kMove_Verb:
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REPORTER_ASSERT(reporter, firstTime);
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REPORTER_ASSERT(reporter, pts[0] == srcPts[0]);
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srcPts++;
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firstTime = false;
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break;
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case SkPath::kLine_Verb:
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REPORTER_ASSERT(reporter, !firstTime);
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REPORTER_ASSERT(reporter, pts[1] == srcPts[0]);
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srcPts++;
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break;
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case SkPath::kQuad_Verb:
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REPORTER_ASSERT(reporter, !"unexpected quad verb");
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break;
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case SkPath::kCubic_Verb:
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REPORTER_ASSERT(reporter, !"unexpected cubic verb");
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break;
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case SkPath::kClose_Verb:
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REPORTER_ASSERT(reporter, !firstTime);
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REPORTER_ASSERT(reporter, !foundClose);
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REPORTER_ASSERT(reporter, expectClose);
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foundClose = true;
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break;
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case SkPath::kDone_Verb:
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goto DONE;
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}
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}
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DONE:
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REPORTER_ASSERT(reporter, foundClose == expectClose);
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}
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static void test_addPoly(skiatest::Reporter* reporter) {
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SkPoint pts[32];
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SkRandom rand;
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for (size_t i = 0; i < SK_ARRAY_COUNT(pts); ++i) {
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pts[i].fX = rand.nextSScalar1();
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pts[i].fY = rand.nextSScalar1();
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}
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for (int doClose = 0; doClose <= 1; ++doClose) {
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for (size_t count = 1; count <= SK_ARRAY_COUNT(pts); ++count) {
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SkPath path;
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path.addPoly(pts, count, SkToBool(doClose));
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test_poly(reporter, path, pts, count, SkToBool(doClose));
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}
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}
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}
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static void test_strokerec(skiatest::Reporter* reporter) {
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SkStrokeRec rec(SkStrokeRec::kFill_InitStyle);
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REPORTER_ASSERT(reporter, rec.isFillStyle());
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rec.setHairlineStyle();
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REPORTER_ASSERT(reporter, rec.isHairlineStyle());
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rec.setStrokeStyle(SK_Scalar1, false);
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REPORTER_ASSERT(reporter, SkStrokeRec::kStroke_Style == rec.getStyle());
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rec.setStrokeStyle(SK_Scalar1, true);
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REPORTER_ASSERT(reporter, SkStrokeRec::kStrokeAndFill_Style == rec.getStyle());
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rec.setStrokeStyle(0, false);
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REPORTER_ASSERT(reporter, SkStrokeRec::kHairline_Style == rec.getStyle());
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rec.setStrokeStyle(0, true);
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REPORTER_ASSERT(reporter, SkStrokeRec::kFill_Style == rec.getStyle());
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}
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/**
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* cheapIsDirection can take a shortcut when a path is marked convex.
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* This function ensures that we always test cheapIsDirection when the path
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* is flagged with unknown convexity status.
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*/
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static void check_direction(SkPath* path,
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SkPath::Direction expectedDir,
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skiatest::Reporter* reporter) {
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if (SkPath::kConvex_Convexity == path->getConvexity()) {
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REPORTER_ASSERT(reporter, path->cheapIsDirection(expectedDir));
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path->setConvexity(SkPath::kUnknown_Convexity);
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}
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REPORTER_ASSERT(reporter, path->cheapIsDirection(expectedDir));
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}
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static void test_direction(skiatest::Reporter* reporter) {
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size_t i;
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SkPath path;
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REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL));
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REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCW_Direction));
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REPORTER_ASSERT(reporter, !path.cheapIsDirection(SkPath::kCCW_Direction));
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static const char* gDegen[] = {
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"M 10 10",
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"M 10 10 M 20 20",
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"M 10 10 L 20 20",
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"M 10 10 L 10 10 L 10 10",
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"M 10 10 Q 10 10 10 10",
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"M 10 10 C 10 10 10 10 10 10",
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};
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for (i = 0; i < SK_ARRAY_COUNT(gDegen); ++i) {
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path.reset();
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bool valid = SkParsePath::FromSVGString(gDegen[i], &path);
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REPORTER_ASSERT(reporter, valid);
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REPORTER_ASSERT(reporter, !path.cheapComputeDirection(NULL));
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}
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static const char* gCW[] = {
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"M 10 10 L 10 10 Q 20 10 20 20",
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"M 10 10 C 20 10 20 20 20 20",
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"M 20 10 Q 20 20 30 20 L 10 20", // test double-back at y-max
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};
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for (i = 0; i < SK_ARRAY_COUNT(gCW); ++i) {
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path.reset();
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bool valid = SkParsePath::FromSVGString(gCW[i], &path);
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REPORTER_ASSERT(reporter, valid);
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check_direction(&path, SkPath::kCW_Direction, reporter);
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}
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static const char* gCCW[] = {
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"M 10 10 L 10 10 Q 20 10 20 -20",
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"M 10 10 C 20 10 20 -20 20 -20",
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"M 20 10 Q 20 20 10 20 L 30 20", // test double-back at y-max
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};
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for (i = 0; i < SK_ARRAY_COUNT(gCCW); ++i) {
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path.reset();
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bool valid = SkParsePath::FromSVGString(gCCW[i], &path);
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REPORTER_ASSERT(reporter, valid);
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check_direction(&path, SkPath::kCCW_Direction, reporter);
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}
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// Test two donuts, each wound a different direction. Only the outer contour
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// determines the cheap direction
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path.reset();
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path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCW_Direction);
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path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCCW_Direction);
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check_direction(&path, SkPath::kCW_Direction, reporter);
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path.reset();
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path.addCircle(0, 0, SkIntToScalar(1), SkPath::kCW_Direction);
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path.addCircle(0, 0, SkIntToScalar(2), SkPath::kCCW_Direction);
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check_direction(&path, SkPath::kCCW_Direction, reporter);
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#ifdef SK_SCALAR_IS_FLOAT
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// triangle with one point really far from the origin.
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path.reset();
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// the first point is roughly 1.05e10, 1.05e10
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path.moveTo(SkFloatToScalar(SkBits2Float(0x501c7652)), SkFloatToScalar(SkBits2Float(0x501c7652)));
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path.lineTo(110 * SK_Scalar1, -10 * SK_Scalar1);
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path.lineTo(-10 * SK_Scalar1, 60 * SK_Scalar1);
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check_direction(&path, SkPath::kCCW_Direction, reporter);
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#endif
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}
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static void add_rect(SkPath* path, const SkRect& r) {
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path->moveTo(r.fLeft, r.fTop);
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path->lineTo(r.fRight, r.fTop);
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path->lineTo(r.fRight, r.fBottom);
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path->lineTo(r.fLeft, r.fBottom);
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path->close();
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}
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static void test_bounds(skiatest::Reporter* reporter) {
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static const SkRect rects[] = {
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{ SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(160) },
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{ SkIntToScalar(610), SkIntToScalar(160), SkIntToScalar(610), SkIntToScalar(199) },
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{ SkIntToScalar(10), SkIntToScalar(198), SkIntToScalar(610), SkIntToScalar(199) },
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{ SkIntToScalar(10), SkIntToScalar(160), SkIntToScalar(10), SkIntToScalar(199) },
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};
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SkPath path0, path1;
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for (size_t i = 0; i < SK_ARRAY_COUNT(rects); ++i) {
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path0.addRect(rects[i]);
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add_rect(&path1, rects[i]);
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}
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REPORTER_ASSERT(reporter, path0.getBounds() == path1.getBounds());
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}
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static void stroke_cubic(const SkPoint pts[4]) {
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SkPath path;
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path.moveTo(pts[0]);
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path.cubicTo(pts[1], pts[2], pts[3]);
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setStrokeWidth(SK_Scalar1 * 2);
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SkPath fill;
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paint.getFillPath(path, &fill);
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}
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// just ensure this can run w/o any SkASSERTS firing in the debug build
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// we used to assert due to differences in how we determine a degenerate vector
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// but that was fixed with the introduction of SkPoint::CanNormalize
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static void stroke_tiny_cubic() {
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SkPoint p0[] = {
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{ 372.0f, 92.0f },
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{ 372.0f, 92.0f },
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{ 372.0f, 92.0f },
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{ 372.0f, 92.0f },
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};
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stroke_cubic(p0);
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SkPoint p1[] = {
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{ 372.0f, 92.0f },
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{ 372.0007f, 92.000755f },
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{ 371.99927f, 92.003922f },
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{ 371.99826f, 92.003899f },
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};
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stroke_cubic(p1);
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}
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static void check_close(skiatest::Reporter* reporter, const SkPath& path) {
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for (int i = 0; i < 2; ++i) {
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SkPath::Iter iter(path, SkToBool(i));
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SkPoint mv;
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SkPoint pts[4];
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SkPath::Verb v;
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int nMT = 0;
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int nCL = 0;
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mv.set(0, 0);
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while (SkPath::kDone_Verb != (v = iter.next(pts))) {
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switch (v) {
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case SkPath::kMove_Verb:
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mv = pts[0];
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++nMT;
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break;
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case SkPath::kClose_Verb:
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REPORTER_ASSERT(reporter, mv == pts[0]);
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++nCL;
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break;
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default:
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break;
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}
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}
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// if we force a close on the interator we should have a close
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// for every moveTo
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REPORTER_ASSERT(reporter, !i || nMT == nCL);
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}
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}
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static void test_close(skiatest::Reporter* reporter) {
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SkPath closePt;
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closePt.moveTo(0, 0);
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closePt.close();
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check_close(reporter, closePt);
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SkPath openPt;
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openPt.moveTo(0, 0);
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check_close(reporter, openPt);
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SkPath empty;
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check_close(reporter, empty);
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empty.close();
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check_close(reporter, empty);
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SkPath rect;
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rect.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
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check_close(reporter, rect);
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rect.close();
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check_close(reporter, rect);
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SkPath quad;
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quad.quadTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
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check_close(reporter, quad);
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quad.close();
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check_close(reporter, quad);
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SkPath cubic;
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quad.cubicTo(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1,
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10*SK_Scalar1, 20 * SK_Scalar1, 20*SK_Scalar1);
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check_close(reporter, cubic);
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cubic.close();
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check_close(reporter, cubic);
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SkPath line;
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line.moveTo(SK_Scalar1, SK_Scalar1);
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line.lineTo(10 * SK_Scalar1, 10*SK_Scalar1);
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check_close(reporter, line);
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line.close();
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check_close(reporter, line);
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SkPath rect2;
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rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
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rect2.close();
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rect2.addRect(SK_Scalar1, SK_Scalar1, 10 * SK_Scalar1, 10*SK_Scalar1);
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check_close(reporter, rect2);
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rect2.close();
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check_close(reporter, rect2);
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SkPath oval3;
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oval3.addOval(SkRect::MakeWH(SK_Scalar1*100,SK_Scalar1*100));
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oval3.close();
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oval3.addOval(SkRect::MakeWH(SK_Scalar1*200,SK_Scalar1*200));
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check_close(reporter, oval3);
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oval3.close();
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check_close(reporter, oval3);
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SkPath moves;
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moves.moveTo(SK_Scalar1, SK_Scalar1);
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moves.moveTo(5 * SK_Scalar1, SK_Scalar1);
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moves.moveTo(SK_Scalar1, 10 * SK_Scalar1);
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moves.moveTo(10 *SK_Scalar1, SK_Scalar1);
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check_close(reporter, moves);
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stroke_tiny_cubic();
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}
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static void check_convexity(skiatest::Reporter* reporter, const SkPath& path,
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SkPath::Convexity expected) {
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SkPath::Convexity c = SkPath::ComputeConvexity(path);
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REPORTER_ASSERT(reporter, c == expected);
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}
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static void test_convexity2(skiatest::Reporter* reporter) {
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SkPath pt;
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pt.moveTo(0, 0);
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pt.close();
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check_convexity(reporter, pt, SkPath::kConvex_Convexity);
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SkPath line;
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line.moveTo(12*SK_Scalar1, 20*SK_Scalar1);
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line.lineTo(-12*SK_Scalar1, -20*SK_Scalar1);
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line.close();
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check_convexity(reporter, pt, SkPath::kConvex_Convexity);
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SkPath triLeft;
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triLeft.moveTo(0, 0);
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triLeft.lineTo(SK_Scalar1, 0);
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triLeft.lineTo(SK_Scalar1, SK_Scalar1);
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triLeft.close();
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check_convexity(reporter, triLeft, SkPath::kConvex_Convexity);
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SkPath triRight;
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triRight.moveTo(0, 0);
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triRight.lineTo(-SK_Scalar1, 0);
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triRight.lineTo(SK_Scalar1, SK_Scalar1);
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triRight.close();
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check_convexity(reporter, triRight, SkPath::kConvex_Convexity);
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SkPath square;
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square.moveTo(0, 0);
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square.lineTo(SK_Scalar1, 0);
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square.lineTo(SK_Scalar1, SK_Scalar1);
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square.lineTo(0, SK_Scalar1);
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square.close();
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check_convexity(reporter, square, SkPath::kConvex_Convexity);
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SkPath redundantSquare;
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redundantSquare.moveTo(0, 0);
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redundantSquare.lineTo(0, 0);
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redundantSquare.lineTo(0, 0);
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redundantSquare.lineTo(SK_Scalar1, 0);
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redundantSquare.lineTo(SK_Scalar1, 0);
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redundantSquare.lineTo(SK_Scalar1, 0);
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redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
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redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
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redundantSquare.lineTo(SK_Scalar1, SK_Scalar1);
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redundantSquare.lineTo(0, SK_Scalar1);
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redundantSquare.lineTo(0, SK_Scalar1);
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redundantSquare.lineTo(0, SK_Scalar1);
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redundantSquare.close();
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check_convexity(reporter, redundantSquare, SkPath::kConvex_Convexity);
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SkPath bowTie;
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bowTie.moveTo(0, 0);
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bowTie.lineTo(0, 0);
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bowTie.lineTo(0, 0);
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bowTie.lineTo(SK_Scalar1, SK_Scalar1);
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bowTie.lineTo(SK_Scalar1, SK_Scalar1);
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bowTie.lineTo(SK_Scalar1, SK_Scalar1);
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bowTie.lineTo(SK_Scalar1, 0);
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bowTie.lineTo(SK_Scalar1, 0);
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bowTie.lineTo(SK_Scalar1, 0);
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bowTie.lineTo(0, SK_Scalar1);
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bowTie.lineTo(0, SK_Scalar1);
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bowTie.lineTo(0, SK_Scalar1);
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bowTie.close();
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check_convexity(reporter, bowTie, SkPath::kConcave_Convexity);
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SkPath spiral;
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spiral.moveTo(0, 0);
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spiral.lineTo(100*SK_Scalar1, 0);
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spiral.lineTo(100*SK_Scalar1, 100*SK_Scalar1);
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spiral.lineTo(0, 100*SK_Scalar1);
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spiral.lineTo(0, 50*SK_Scalar1);
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spiral.lineTo(50*SK_Scalar1, 50*SK_Scalar1);
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spiral.lineTo(50*SK_Scalar1, 75*SK_Scalar1);
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spiral.close();
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check_convexity(reporter, spiral, SkPath::kConcave_Convexity);
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SkPath dent;
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dent.moveTo(0, 0);
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dent.lineTo(100*SK_Scalar1, 100*SK_Scalar1);
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dent.lineTo(0, 100*SK_Scalar1);
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dent.lineTo(-50*SK_Scalar1, 200*SK_Scalar1);
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dent.lineTo(-200*SK_Scalar1, 100*SK_Scalar1);
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dent.close();
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check_convexity(reporter, dent, SkPath::kConcave_Convexity);
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}
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static void check_convex_bounds(skiatest::Reporter* reporter, const SkPath& p,
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const SkRect& bounds) {
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REPORTER_ASSERT(reporter, p.isConvex());
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REPORTER_ASSERT(reporter, p.getBounds() == bounds);
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SkPath p2(p);
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REPORTER_ASSERT(reporter, p2.isConvex());
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REPORTER_ASSERT(reporter, p2.getBounds() == bounds);
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SkPath other;
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other.swap(p2);
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REPORTER_ASSERT(reporter, other.isConvex());
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REPORTER_ASSERT(reporter, other.getBounds() == bounds);
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}
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static void setFromString(SkPath* path, const char str[]) {
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bool first = true;
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while (str) {
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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));
|
|
}
|
|
|
|
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)
|