blob: 3ace654fd8f565f960eb058f9ba6a336aff0c2a4 [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 "include/core/SkCanvas.h"
#include "include/core/SkPaint.h"
#include "include/core/SkSurface.h"
#include "src/core/SkFontMgrPriv.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkTextBlobPriv.h"
#include "tools/fonts/TestFontMgr.h"
void FuzzTextBlobDeserialize(SkReadBuffer& buf) {
auto tb = SkTextBlobPriv::MakeFromBuffer(buf);
if (!buf.isValid()) {
return;
}
auto s = SkSurface::MakeRasterN32Premul(128, 128);
if (!s) {
// May return nullptr in memory-constrained fuzzing environments
return;
}
s->getCanvas()->drawTextBlob(tb, 200, 200, SkPaint());
}
// TODO(kjlubick): remove IS_FUZZING... after https://crrev.com/c/2410304 lands
#if defined(SK_BUILD_FOR_LIBFUZZER) || defined(IS_FUZZING_WITH_LIBFUZZER)
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
if (size > 1024) {
return 0;
}
gSkFontMgr_DefaultFactory = &ToolUtils::MakePortableFontMgr;
SkReadBuffer buf(data, size);
FuzzTextBlobDeserialize(buf);
return 0;
}
#endif