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- // Copyright 2016 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include <stddef.h>
- #include <stdint.h>
- #include "testing/libfuzzer/fuzzers/skia_path_common.h"
- #include "third_party/skia/include/core/SkCanvas.h"
- #include "third_party/skia/include/core/SkPaint.h"
- #include "third_party/skia/include/core/SkPath.h"
- #include "third_party/skia/include/core/SkSurface.h"
- extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
- uint8_t w, h, anti_alias;
- if (!read<uint8_t>(&data, &size, &w))
- return 0;
- if (!read<uint8_t>(&data, &size, &h))
- return 0;
- if (!read<uint8_t>(&data, &size, &anti_alias))
- return 0;
- SkScalar a, b, c, d;
- if (!read<SkScalar>(&data, &size, &a))
- return 0;
- if (!read<SkScalar>(&data, &size, &b))
- return 0;
- if (!read<SkScalar>(&data, &size, &c))
- return 0;
- if (!read<SkScalar>(&data, &size, &d))
- return 0;
- // In this case, we specifically don't want to include kDone_Verb.
- SkPath path;
- BuildPath(&data, &size, &path, SkPath::Verb::kClose_Verb);
- // Try a few potentially interesting things with our path.
- path.contains(a, b);
- path.conservativelyContainsRect(SkRect::MakeLTRB(a, b, c, d));
- SkPaint paint_fill;
- paint_fill.setStyle(SkPaint::Style::kFill_Style);
- paint_fill.setAntiAlias(anti_alias & 1);
- SkPaint paint_stroke;
- paint_stroke.setStyle(SkPaint::Style::kStroke_Style);
- paint_stroke.setStrokeWidth(1);
- paint_stroke.setAntiAlias(anti_alias & 1);
- SkPath dst_path;
- paint_stroke.getFillPath(path, &dst_path, nullptr);
- // Width and height should never be 0.
- auto surface(SkSurface::MakeRasterN32Premul(w ? w : 1, h ? h : 1));
- surface->getCanvas()->drawPath(path, paint_fill);
- surface->getCanvas()->drawPath(path, paint_stroke);
- return 0;
- }
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