63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
// Copyright 2016 The Chromium Authors
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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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#include <stddef.h>
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#include <stdint.h>
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#include "testing/libfuzzer/fuzzers/skia_path_common.h"
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#include "third_party/skia/include/core/SkCanvas.h"
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#include "third_party/skia/include/core/SkPaint.h"
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#include "third_party/skia/include/core/SkPath.h"
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#include "third_party/skia/include/core/SkPathUtils.h"
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#include "third_party/skia/include/core/SkSurface.h"
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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uint8_t w, h, anti_alias;
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if (!read<uint8_t>(&data, &size, &w))
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return 0;
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if (!read<uint8_t>(&data, &size, &h))
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return 0;
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if (!read<uint8_t>(&data, &size, &anti_alias))
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return 0;
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SkScalar a, b, c, d;
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if (!read<SkScalar>(&data, &size, &a))
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return 0;
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if (!read<SkScalar>(&data, &size, &b))
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return 0;
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if (!read<SkScalar>(&data, &size, &c))
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return 0;
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if (!read<SkScalar>(&data, &size, &d))
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return 0;
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// In this case, we specifically don't want to include kDone_Verb.
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SkPath path;
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BuildPath(&data, &size, &path, SkPath::Verb::kClose_Verb);
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// Try a few potentially interesting things with our path.
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path.contains(a, b);
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path.conservativelyContainsRect(SkRect::MakeLTRB(a, b, c, d));
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SkPaint paint_fill;
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paint_fill.setStyle(SkPaint::Style::kFill_Style);
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paint_fill.setAntiAlias(anti_alias & 1);
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SkPaint paint_stroke;
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paint_stroke.setStyle(SkPaint::Style::kStroke_Style);
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paint_stroke.setStrokeWidth(1);
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paint_stroke.setAntiAlias(anti_alias & 1);
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SkPath dst_path;
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skpathutils::FillPathWithPaint(path, paint_stroke, &dst_path, nullptr);
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// Width and height should never be 0.
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auto surface(SkSurface::MakeRasterN32Premul(w ? w : 1, h ? h : 1));
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surface->getCanvas()->drawPath(path, paint_fill);
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surface->getCanvas()->drawPath(path, paint_stroke);
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return 0;
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}
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