зеркало из https://github.com/mozilla/moz-skia.git
115 строки
4.5 KiB
C++
115 строки
4.5 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPath.h"
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#include "SkPathOps.h"
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#include "SkPoint.h"
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#include "Test.h"
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static const SkPoint nonFinitePts[] = {
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{ SK_ScalarInfinity, 0 },
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{ 0, SK_ScalarInfinity },
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{ SK_ScalarInfinity, SK_ScalarInfinity },
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{ SK_ScalarNegativeInfinity, 0},
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{ 0, SK_ScalarNegativeInfinity },
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{ SK_ScalarNegativeInfinity, SK_ScalarNegativeInfinity },
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{ SK_ScalarNegativeInfinity, SK_ScalarInfinity },
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{ SK_ScalarInfinity, SK_ScalarNegativeInfinity },
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{ SK_ScalarNaN, 0 },
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{ 0, SK_ScalarNaN },
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{ SK_ScalarNaN, SK_ScalarNaN },
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};
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const size_t nonFinitePtsCount = sizeof(nonFinitePts) / sizeof(nonFinitePts[0]);
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static const SkPoint finitePts[] = {
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{ 0, 0 },
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{ SK_ScalarMax, 0 },
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{ 0, SK_ScalarMax },
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{ SK_ScalarMax, SK_ScalarMax },
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{ SK_ScalarMin, 0 },
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{ 0, SK_ScalarMin },
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{ SK_ScalarMin, SK_ScalarMin },
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};
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const size_t finitePtsCount = sizeof(finitePts) / sizeof(finitePts[0]);
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static void failOne(skiatest::Reporter* reporter, int index) {
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SkPath path;
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int i = (int) (index % nonFinitePtsCount);
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int f = (int) (index % finitePtsCount);
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int g = (int) ((f + 1) % finitePtsCount);
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switch (index % 13) {
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case 0: path.lineTo(nonFinitePts[i]); break;
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case 1: path.quadTo(nonFinitePts[i], nonFinitePts[i]); break;
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case 2: path.quadTo(nonFinitePts[i], finitePts[f]); break;
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case 3: path.quadTo(finitePts[f], nonFinitePts[i]); break;
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case 4: path.cubicTo(nonFinitePts[i], finitePts[f], finitePts[f]); break;
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case 5: path.cubicTo(finitePts[f], nonFinitePts[i], finitePts[f]); break;
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case 6: path.cubicTo(finitePts[f], finitePts[f], nonFinitePts[i]); break;
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case 7: path.cubicTo(nonFinitePts[i], nonFinitePts[i], finitePts[f]); break;
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case 8: path.cubicTo(nonFinitePts[i], finitePts[f], nonFinitePts[i]); break;
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case 9: path.cubicTo(finitePts[f], nonFinitePts[i], nonFinitePts[i]); break;
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case 10: path.cubicTo(nonFinitePts[i], nonFinitePts[i], nonFinitePts[i]); break;
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case 11: path.cubicTo(nonFinitePts[i], finitePts[f], finitePts[g]); break;
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case 12: path.moveTo(nonFinitePts[i]); break;
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}
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SkPath result;
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result.setFillType(SkPath::kWinding_FillType);
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bool success = Simplify(path, &result);
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REPORTER_ASSERT(reporter, !success);
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REPORTER_ASSERT(reporter, result.isEmpty());
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REPORTER_ASSERT(reporter, result.getFillType() == SkPath::kWinding_FillType);
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reporter->bumpTestCount();
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}
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static void dontFailOne(skiatest::Reporter* reporter, int index) {
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SkPath path;
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int f = (int) (index % finitePtsCount);
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int g = (int) ((f + 1) % finitePtsCount);
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switch (index % 11) {
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case 0: path.lineTo(finitePts[f]); break;
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case 1: path.quadTo(finitePts[f], finitePts[f]); break;
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case 2: path.quadTo(finitePts[f], finitePts[g]); break;
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case 3: path.quadTo(finitePts[g], finitePts[f]); break;
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case 4: path.cubicTo(finitePts[f], finitePts[f], finitePts[f]); break;
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case 5: path.cubicTo(finitePts[f], finitePts[f], finitePts[g]); break;
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case 6: path.cubicTo(finitePts[f], finitePts[g], finitePts[f]); break;
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case 7: path.cubicTo(finitePts[f], finitePts[g], finitePts[g]); break;
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case 8: path.cubicTo(finitePts[g], finitePts[f], finitePts[f]); break;
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case 9: path.cubicTo(finitePts[g], finitePts[f], finitePts[g]); break;
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case 10: path.moveTo(finitePts[f]); break;
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}
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SkPath result;
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result.setFillType(SkPath::kWinding_FillType);
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bool success = Simplify(path, &result);
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// linux 32 debug fails test 13 because the quad is not treated as linear
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// there's no error in the math that I can find -- it looks like a processor
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// or compiler bug -- so for now, allow either to work
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REPORTER_ASSERT(reporter, success || index == 13);
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REPORTER_ASSERT(reporter, result.getFillType() != SkPath::kWinding_FillType);
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reporter->bumpTestCount();
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}
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DEF_TEST(PathOpsSimplifyFail, reporter) {
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for (int index = 0; index < (int) (13 * nonFinitePtsCount * finitePtsCount); ++index) {
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failOne(reporter, index);
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}
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for (int index = 0; index < (int) (11 * finitePtsCount); ++index) {
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dontFailOne(reporter, index);
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}
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}
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DEF_TEST(PathOpsSimplifyFailOne, reporter) {
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int index = 0;
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failOne(reporter, index);
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}
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DEF_TEST(PathOpsSimplifyDontFailOne, reporter) {
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int index = 13;
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dontFailOne(reporter, index);
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}
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