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- /*
- * Copyright 2018 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "include/core/SkCanvas.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkPath.h"
- #include "include/core/SkSurface.h"
- #include "src/core/SkReadBuffer.h"
- void FuzzPathDeserialize(SkReadBuffer& buf) {
- SkPath path;
- buf.readPath(&path);
- if (!buf.isValid()) {
- return;
- }
- auto s = SkSurface::MakeRasterN32Premul(128, 128);
- if (!s) {
- // May return nullptr in memory-constrained fuzzing environments
- return;
- }
- s->getCanvas()->drawPath(path, SkPaint());
- }
- #if defined(IS_FUZZING_WITH_LIBFUZZER)
- extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
- if (size < 4) {
- return 0;
- }
- uint32_t packed;
- memcpy(&packed, data, 4);
- unsigned version = packed & 0xFF;
- if (version != 4) {
- // Chrome only will produce version 4, so guide the fuzzer to
- // only focus on those branches.
- return 0;
- }
- SkReadBuffer buf(data, size);
- FuzzPathDeserialize(buf);
- return 0;
- }
- #endif
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