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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 "SkIntersections.h"
#include "SkPathOpsCubic.h"
#include "SkPathOpsQuad.h"
#include "SkReduceOrder.h"
#include "Test.h"
static struct lineCubic {
SkDCubic cubic;
SkDQuad quad;
int answerCount;
SkDPoint answers[2];
} quadCubicTests[] = {
{{{{10,234}, {10,229.58172607421875}, {13.581720352172852,226}, {18,226}}},
{{{18,226}, {14.686291694641113,226}, {12.342399597167969,228.3424072265625}}}, 1,
{{18,226}, {0,0}}},
{{{{10,234}, {10,229.58172607421875}, {13.581720352172852,226}, {18,226}}},
{{{12.342399597167969,228.3424072265625}, {10,230.68629455566406}, {10,234}}}, 1,
{{10,234}, {0,0}}},
};
static const size_t quadCubicTests_count = SK_ARRAY_COUNT(quadCubicTests);
static void PathOpsCubicQuadIntersectionTest(skiatest::Reporter* reporter) {
for (size_t index = 0; index < quadCubicTests_count; ++index) {
int iIndex = static_cast<int>(index);
const SkDCubic& cubic = quadCubicTests[index].cubic;
const SkDQuad& quad = quadCubicTests[index].quad;
SkReduceOrder reduce1;
SkReduceOrder reduce2;
int order1 = reduce1.reduce(cubic, SkReduceOrder::kNo_Quadratics,
SkReduceOrder::kFill_Style);
int order2 = reduce2.reduce(quad, SkReduceOrder::kFill_Style);
if (order1 != 4) {
SkDebugf("[%d] cubic order=%d\n", iIndex, order1);
REPORTER_ASSERT(reporter, 0);
}
if (order2 != 3) {
SkDebugf("[%d] quad order=%d\n", iIndex, order2);
REPORTER_ASSERT(reporter, 0);
}
SkIntersections i;
int roots = i.intersect(cubic, quad);
SkASSERT(roots == quadCubicTests[index].answerCount);
for (int pt = 0; pt < roots; ++pt) {
double tt1 = i[0][pt];
SkDPoint xy1 = cubic.xyAtT(tt1);
double tt2 = i[1][pt];
SkDPoint xy2 = quad.xyAtT(tt2);
if (!xy1.approximatelyEqual(xy2)) {
SkDebugf("%s [%d,%d] x!= t1=%g (%g,%g) t2=%g (%g,%g)\n",
__FUNCTION__, iIndex, pt, tt1, xy1.fX, xy1.fY, tt2, xy2.fX, xy2.fY);
}
REPORTER_ASSERT(reporter, xy1.approximatelyEqual(xy2));
bool found = false;
for (int idx2 = 0; idx2 < quadCubicTests[index].answerCount; ++idx2) {
found |= quadCubicTests[index].answers[idx2].approximatelyEqual(xy1);
}
REPORTER_ASSERT(reporter, found);
}
reporter->bumpTestCount();
}
}
#include "TestClassDef.h"
DEFINE_TESTCLASS_SHORT(PathOpsCubicQuadIntersectionTest)
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