skia2/tests/PathOpsThreeWayTest.cpp

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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkIntersections.h"
#include "SkTDArray.h"
#include "Test.h"
// check intersections for consistency
struct Curve {
int ptCount;
SkDCubic curve; // largest can hold lines / quads/ cubics
};
static const Curve testSet0[] = { // extracted from skpClip2
{4, {{{134,11414}, {131.990234,11414}, {130.32666,11415.4824}, {130.042755,11417.4131}}} },
{4, {{{130.042755,11417.4131}, {130.233124,11418.3193}, {131.037079,11419}, {132,11419}}} },
{4, {{{132,11419}, {130.895432,11419}, {130,11418.1045}, {130,11417}}} },
};
static const Curve testSet1[] = { // extracted from cubicOp85i
{4, {{{3,4}, {1,5}, {4,3}, {6,4}}} },
{1, {{{6,4}, {3,4}}} },
{4, {{{3,4}, {4,6}, {4,3}, {5,1}}} },
{1, {{{5,1}, {3,4}}} },
};
static const struct TestSet {
const Curve* tests;
int testCount;
} testSets[] = {
{ testSet0, (int) SK_ARRAY_COUNT(testSet0) },
{ testSet1, (int) SK_ARRAY_COUNT(testSet1) },
};
static const int testSetsCount = (int) SK_ARRAY_COUNT(testSets);
static void testSetTest(skiatest::Reporter* reporter, int index) {
const TestSet& testSet = testSets[index];
int testCount = testSet.testCount;
SkASSERT(testCount > 1);
SkTDArray<SkIntersections> combos;
for (int outer = 0; outer < testCount - 1; ++outer) {
const Curve& oTest = testSet.tests[outer];
for (int inner = outer + 1; inner < testCount; ++inner) {
const Curve& iTest = testSet.tests[inner];
SkIntersections* i = combos.append();
sk_bzero(i, sizeof(SkIntersections));
SkDLine oLine = {{ oTest.curve[0], oTest.curve[1] }};
SkDLine iLine = {{ iTest.curve[0], iTest.curve[1] }};
if (oTest.ptCount == 1 && iTest.ptCount == 1) {
i->intersect(oLine, iLine);
} else if (oTest.ptCount == 1 && iTest.ptCount == 4) {
i->intersect(iTest.curve, oLine);
} else if (oTest.ptCount == 4 && iTest.ptCount == 1) {
i->intersect(oTest.curve, iLine);
} else if (oTest.ptCount == 4 && iTest.ptCount == 4) {
i->intersect(oTest.curve, iTest.curve);
} else {
SkASSERT(0);
}
// i->dump();
}
}
}
DEF_TEST(PathOpsThreeWay, reporter) {
for (int index = 0; index < testSetsCount; ++index) {
testSetTest(reporter, index);
reporter->bumpTestCount();
}
}
DEF_TEST(PathOpsThreeWayOneOff, reporter) {
int index = 1;
testSetTest(reporter, index);
}