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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 "SkPath.h"
#include "SkPathOps.h"
#include "SkPoint.h"
#include "Test.h"
static const SkPoint nonFinitePts[] = {
{ SK_ScalarInfinity, 0 },
{ 0, SK_ScalarInfinity },
{ SK_ScalarInfinity, SK_ScalarInfinity },
{ SK_ScalarNegativeInfinity, 0},
{ 0, SK_ScalarNegativeInfinity },
{ SK_ScalarNegativeInfinity, SK_ScalarNegativeInfinity },
{ SK_ScalarNegativeInfinity, SK_ScalarInfinity },
{ SK_ScalarInfinity, SK_ScalarNegativeInfinity },
{ SK_ScalarNaN, 0 },
{ 0, SK_ScalarNaN },
{ SK_ScalarNaN, SK_ScalarNaN },
};
const size_t nonFinitePtsCount = sizeof(nonFinitePts) / sizeof(nonFinitePts[0]);
static const SkPoint finitePts[] = {
{ 0, 0 },
{ SK_ScalarMax, 0 },
{ 0, SK_ScalarMax },
{ SK_ScalarMax, SK_ScalarMax },
{ SK_ScalarMin, 0 },
{ 0, SK_ScalarMin },
{ SK_ScalarMin, SK_ScalarMin },
};
const size_t finitePtsCount = sizeof(finitePts) / sizeof(finitePts[0]);
static void failOne(skiatest::Reporter* reporter, int index) {
SkPath path;
int i = (int) (index % nonFinitePtsCount);
int f = (int) (index % finitePtsCount);
int g = (int) ((f + 1) % finitePtsCount);
switch (index % 13) {
case 0: path.lineTo(nonFinitePts[i]); break;
case 1: path.quadTo(nonFinitePts[i], nonFinitePts[i]); break;
case 2: path.quadTo(nonFinitePts[i], finitePts[f]); break;
case 3: path.quadTo(finitePts[f], nonFinitePts[i]); break;
case 4: path.cubicTo(nonFinitePts[i], finitePts[f], finitePts[f]); break;
case 5: path.cubicTo(finitePts[f], nonFinitePts[i], finitePts[f]); break;
case 6: path.cubicTo(finitePts[f], finitePts[f], nonFinitePts[i]); break;
case 7: path.cubicTo(nonFinitePts[i], nonFinitePts[i], finitePts[f]); break;
case 8: path.cubicTo(nonFinitePts[i], finitePts[f], nonFinitePts[i]); break;
case 9: path.cubicTo(finitePts[f], nonFinitePts[i], nonFinitePts[i]); break;
case 10: path.cubicTo(nonFinitePts[i], nonFinitePts[i], nonFinitePts[i]); break;
case 11: path.cubicTo(nonFinitePts[i], finitePts[f], finitePts[g]); break;
case 12: path.moveTo(nonFinitePts[i]); break;
}
SkPath result;
result.setFillType(SkPath::kWinding_FillType);
bool success = Simplify(path, &result);
REPORTER_ASSERT(reporter, !success);
REPORTER_ASSERT(reporter, result.isEmpty());
REPORTER_ASSERT(reporter, result.getFillType() == SkPath::kWinding_FillType);
reporter->bumpTestCount();
}
static void dontFailOne(skiatest::Reporter* reporter, int index) {
SkPath path;
int f = (int) (index % finitePtsCount);
int g = (int) ((f + 1) % finitePtsCount);
switch (index % 11) {
case 0: path.lineTo(finitePts[f]); break;
case 1: path.quadTo(finitePts[f], finitePts[f]); break;
case 2: path.quadTo(finitePts[f], finitePts[g]); break;
case 3: path.quadTo(finitePts[g], finitePts[f]); break;
case 4: path.cubicTo(finitePts[f], finitePts[f], finitePts[f]); break;
case 5: path.cubicTo(finitePts[f], finitePts[f], finitePts[g]); break;
case 6: path.cubicTo(finitePts[f], finitePts[g], finitePts[f]); break;
case 7: path.cubicTo(finitePts[f], finitePts[g], finitePts[g]); break;
case 8: path.cubicTo(finitePts[g], finitePts[f], finitePts[f]); break;
case 9: path.cubicTo(finitePts[g], finitePts[f], finitePts[g]); break;
case 10: path.moveTo(finitePts[f]); break;
}
SkPath result;
result.setFillType(SkPath::kWinding_FillType);
bool success = Simplify(path, &result);
if (index != 17 && index != 31 && index != 38) { // cubic fails to chop in two without creating NaNs
REPORTER_ASSERT(reporter, success);
REPORTER_ASSERT(reporter, result.getFillType() != SkPath::kWinding_FillType);
}
reporter->bumpTestCount();
}
DEF_TEST(PathOpsSimplifyFail, reporter) {
for (int index = 0; index < (int) (13 * nonFinitePtsCount * finitePtsCount); ++index) {
failOne(reporter, index);
}
for (int index = 0; index < (int) (11 * finitePtsCount); ++index) {
dontFailOne(reporter, index);
}
}
DEF_TEST(PathOpsSimplifyFailOne, reporter) {
int index = 0;
failOne(reporter, index);
}
DEF_TEST(PathOpsSimplifyDontFailOne, reporter) {
int index = 17;
dontFailOne(reporter, index);
}
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