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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkOpSegment.h"
#include "Test.h"
static const SkPoint cubics[][4] = {
{{0, 1}, {2, 6}, {4, 2}, {5, 3}}
};
static const SkPoint lines[][2] = {
{{6, 2}, {2, 4}}
};
struct SortSet {
const SkPoint* ptData;
int ptCount;
double tStart;
double tEnd;
};
static const SortSet set1[] = {
{lines[0], 2, 0.54070336, 0.388888889},
{cubics[0], 4, 0.666669871, 0.405037112},
{lines[0], 2, 0.54070336, 0.9140625},
{cubics[0], 4, 0.666669871, 0.875},
};
static const SortSet set2[] = {
{lines[0], 2, 0.574074074, 0.388888889},
{cubics[0], 4, 0.666666667, 0.405037112},
{lines[0], 2, 0.574074074, 0.9140625},
{cubics[0], 4, 0.666666667, 0.875},
};
struct SortSetTests {
const SortSet* set;
size_t count;
};
static const SortSetTests tests[] = {
{ set1, SK_ARRAY_COUNT(set1) },
{ set2, SK_ARRAY_COUNT(set2) }
};
static void setup(const SortSet* set, const size_t idx, SkPoint const ** data,
SkPoint* reverse, SkOpSegment* seg) {
SkPoint start, end;
if (set[idx].ptCount == 2) {
if (set[idx].tStart < set[idx].tEnd) {
*data = set[idx].ptData;
} else {
reverse[0] = set[idx].ptData[1];
reverse[1] = set[idx].ptData[0];
*data = reverse;
}
seg->addLine(*data, false, false);
SkDLine dLine;
dLine.set(set[idx].ptData);
start = dLine.xyAtT(set[idx].tStart).asSkPoint();
end = dLine.xyAtT(set[idx].tEnd).asSkPoint();
} else if (set[idx].ptCount == 4) {
if (set[idx].tStart < set[idx].tEnd) {
*data = set[idx].ptData;
} else {
reverse[0] = set[idx].ptData[3];
reverse[1] = set[idx].ptData[2];
reverse[2] = set[idx].ptData[1];
reverse[3] = set[idx].ptData[0];
*data = reverse;
}
seg->addCubic(*data, false, false);
SkDCubic dCubic;
dCubic.set(set[idx].ptData);
start = dCubic.xyAtT(set[idx].tStart).asSkPoint();
end = dCubic.xyAtT(set[idx].tEnd).asSkPoint();
}
seg->addT(NULL, start, set[idx].tStart);
seg->addT(NULL, end, set[idx].tEnd);
seg->addT(NULL, set[idx].ptData[0], 0);
seg->addT(NULL, set[idx].ptData[set[idx].ptCount - 1], 1);
}
static void PathOpsAngleTest(skiatest::Reporter* reporter) {
for (size_t index = 0; index < SK_ARRAY_COUNT(tests); ++index) {
const SortSetTests& test = tests[index];
for (size_t idxL = 0; idxL < test.count - 1; ++idxL) {
SkOpSegment lesser, greater;
SkPoint lesserReverse[4], greaterReverse[4];
const SkPoint* lesserData, * greaterData;
const SortSet* set = test.set;
setup(set, idxL, &lesserData, lesserReverse, &lesser);
size_t idxG = idxL + 1;
setup(set, idxG, &greaterData, greaterReverse, &greater);
SkOpAngle first, second;
first.set(lesserData, (SkPath::Verb) (set[idxL].ptCount - 1), &lesser,
0, 1, lesser.spans());
first.setSpans();
second.set(greaterData, (SkPath::Verb) (set[idxG].ptCount - 1), &greater,
0, 1, greater.spans());
second.setSpans();
bool compare = first < second;
if (!compare) {
SkDebugf("%s test[%d]: lesser[%d] > greater[%d]\n", __FUNCTION__,
index, idxL, idxG);
}
REPORTER_ASSERT(reporter, compare);
}
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS_SHORT(PathOpsAngleTest)
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