blob: 859de15b0e428ec983f73d07def99c5128c38dfc [file] [log] [blame]
* Copyright 2018 Google LLC
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "fuzz/Fuzz.h"
#include "include/private/SkTemplates.h"
#include "src/utils/SkPolyUtils.h"
void inline ignoreResult(bool ) {}
// clamps the point to the nearest 16th of a pixel
static SkPoint sanitize_point(const SkPoint& in) {
SkPoint out;
out.fX = SkScalarRoundToScalar(16.f*in.fX)*0.0625f;
out.fY = SkScalarRoundToScalar(16.f*in.fY)*0.0625f;
return out;
DEF_FUZZ(PolyUtils, fuzz) {
int count;
fuzz->nextRange(&count, 0, 512);
SkAutoSTMalloc<64, SkPoint> polygon(count);
for (int index = 0; index < count; ++index) {
fuzz->next(&polygon[index].fX, &polygon[index].fY);
polygon[index] = sanitize_point(polygon[index]);
SkRect bounds;
bounds.setBoundsCheck(polygon, count);
ignoreResult(SkGetPolygonWinding(polygon, count));
ignoreResult(SkIsConvexPolygon(polygon, count));
ignoreResult(SkIsSimplePolygon(polygon, count));
SkScalar inset;
SkTDArray<SkPoint> output;
ignoreResult(SkInsetConvexPolygon(polygon, count, inset, &output));
SkScalar offset;
ignoreResult(SkOffsetSimplePolygon(polygon, count, bounds, offset, &output));
SkAutoSTMalloc<64, uint16_t> indexMap(count);
for (int index = 0; index < count; ++index) {
SkTDArray<uint16_t> outputIndices;
ignoreResult(SkTriangulateSimplePolygon(polygon, indexMap, count, &outputIndices));