skia2/tests/PathOpsSimplifyFailTest.cpp
reed 0dc4dd6dda Revert of pathops version two (patchset #16 id:150001 of https://codereview.chromium.org/1002693002/)
Reason for revert:
ASAN investigation

Original issue's description:
> pathops version two
>
> R=reed@google.com
>
> marked 'no commit' to attempt to get trybots to run
>
> TBR=reed@google.com
>
> Committed: https://skia.googlesource.com/skia/+/ccec0f958ffc71a9986d236bc2eb335cb2111119

TBR=caryclark@google.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1029993002
2015-03-24 13:55:33 -07:00

115 lines
4.5 KiB
C++

/*
* 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);
// linux 32 debug fails test 13 because the quad is not treated as linear
// there's no error in the math that I can find -- it looks like a processor
// or compiler bug -- so for now, allow either to work
REPORTER_ASSERT(reporter, success || index == 13);
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 = 13;
dontFailOne(reporter, index);
}