/*

 * 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/SkData.h"

#include "include/core/SkImage.h"

#include "include/core/SkPaint.h"

#include "include/core/SkSurface.h"

bool FuzzImageDecode(sk_sp<SkData> bytes) {

    auto img = SkImage::MakeFromEncoded(bytes);

    if (nullptr == img.get()) {

        return false;

    }

    auto s = SkSurface::MakeRasterN32Premul(128, 128);

    if (!s) {

        // May return nullptr in memory-constrained fuzzing environments

        return false;

    }

    s->getCanvas()->drawImage(img, 0, 0);

    return true;

}

// 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 > 10240) {

        return 0;

    }

    auto bytes = SkData::MakeWithoutCopy(data, size);

    FuzzImageDecode(bytes);

    return 0;

}

#endif