/*

 * 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/android/SkAnimatedImage.h"

#include "include/codec/SkAndroidCodec.h"

#include "include/core/SkCanvas.h"

#include "include/core/SkStream.h"

#include "include/core/SkSurface.h"

bool FuzzAnimatedImage(const uint8_t *data, size_t size) {

    auto codec = SkAndroidCodec::MakeFromStream(SkMemoryStream::MakeDirect(data, size));

    if (nullptr == codec) {

        return false;

    }

    auto aImg = SkAnimatedImage::Make(std::move(codec));

    if (nullptr == aImg) {

        return false;

    }

    auto s = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(128, 128));

    if (!s) {

        // May return nullptr in memory-constrained fuzzing environments

        return false;

    }

    int escape = 0;

    while (!aImg->isFinished() && escape < 100) {

        aImg->draw(s->getCanvas());

        escape++;

        aImg->decodeNextFrame();

    }

    return true;

}

#if defined(SK_BUILD_FOR_LIBFUZZER)

extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {

    if (size > 10240) {

        return 0;

    }

    FuzzAnimatedImage(data, size);

    return 0;

}

#endif