skia2/tests/PathOpsQuadReduceOrderTest.cpp
hcm 27c46a08a9 Revert of harden pathops for pathological test (patchset #19 id:410001 of https://codereview.chromium.org/633393002/)
Reason for revert:
Compile errors on bots

Original issue's description:
> These tests stress pathops by describing the union of circle-like paths that have tiny line segments embedded and double back to create near-coincident conditions.
>
> The fixes include
> - detect when finding the active top loops between two possible answers
> - preflight chasing winding to ensure answer is consistent
> - binary search more often when quadratic intersection fails
> - add more failure paths when an intersect is missed
>
> While this fixes the chrome bug, reenabling path ops in svg should be deferred until additional fixes are landed.
>
> TBR=
> BUG=421132
>
> Committed: https://skia.googlesource.com/skia/+/6f726addf3178b01949bb389ef83cf14a1d7b6b2

TBR=caryclark@google.com
NOTREECHECKS=true
NOTRY=true
BUG=421132

Review URL: https://codereview.chromium.org/686843002
2014-10-28 10:55:54 -07:00

69 lines
2.0 KiB
C++

/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "PathOpsQuadIntersectionTestData.h"
#include "SkIntersections.h"
#include "SkPathOpsRect.h"
#include "SkReduceOrder.h"
#include "Test.h"
static const SkDQuad testSet[] = {
{{{1, 1}, {2, 2}, {1, 1.000003}}},
{{{1, 0}, {2, 6}, {3, 0}}}
};
static const size_t testSetCount = SK_ARRAY_COUNT(testSet);
static void oneOffTest(skiatest::Reporter* reporter) {
for (size_t index = 0; index < testSetCount; ++index) {
const SkDQuad& quad = testSet[index];
SkReduceOrder reducer;
SkDEBUGCODE(int result = ) reducer.reduce(quad);
SkASSERT(result == 3);
}
}
static void standardTestCases(skiatest::Reporter* reporter) {
size_t index;
SkReduceOrder reducer;
int order;
enum {
RunAll,
RunQuadraticLines,
RunQuadraticModLines,
RunNone
} run = RunAll;
int firstTestIndex = 0;
#if 0
run = RunQuadraticLines;
firstTestIndex = 1;
#endif
int firstQuadraticLineTest = run == RunAll ? 0 : run == RunQuadraticLines ? firstTestIndex
: SK_MaxS32;
int firstQuadraticModLineTest = run == RunAll ? 0 : run == RunQuadraticModLines ? firstTestIndex
: SK_MaxS32;
for (index = firstQuadraticLineTest; index < quadraticLines_count; ++index) {
const SkDQuad& quad = quadraticLines[index];
order = reducer.reduce(quad);
if (order != 2) {
SkDebugf("[%d] line quad order=%d\n", (int) index, order);
}
}
for (index = firstQuadraticModLineTest; index < quadraticModEpsilonLines_count; ++index) {
const SkDQuad& quad = quadraticModEpsilonLines[index];
order = reducer.reduce(quad);
if (order != 3) {
SkDebugf("[%d] line mod quad order=%d\n", (int) index, order);
}
}
}
DEF_TEST(PathOpsReduceOrderQuad, reporter) {
oneOffTest(reporter);
standardTestCases(reporter);
}