47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
/*
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* Copyright 2018 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 "include/core/SkCanvas.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkSurface.h"
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#include "src/core/SkReadBuffer.h"
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void FuzzPathDeserialize(SkReadBuffer& buf) {
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SkPath path;
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buf.readPath(&path);
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if (!buf.isValid()) {
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return;
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}
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auto s = SkSurface::MakeRasterN32Premul(128, 128);
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if (!s) {
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// May return nullptr in memory-constrained fuzzing environments
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return;
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}
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s->getCanvas()->drawPath(path, SkPaint());
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}
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#if defined(IS_FUZZING_WITH_LIBFUZZER)
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
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if (size < 4 || size > 2000) {
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return 0;
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}
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uint32_t packed;
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memcpy(&packed, data, 4);
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unsigned version = packed & 0xFF;
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if (version != 4) {
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// Chrome only will produce version 4, so guide the fuzzer to
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// only focus on those branches.
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return 0;
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}
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SkReadBuffer buf(data, size);
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FuzzPathDeserialize(buf);
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return 0;
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}
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#endif
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