/*

 * 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/SkSurface.h"

#include "src/core/SkRegionPriv.h"

bool FuzzRegionDeserialize(sk_sp<SkData> bytes) {

    SkRegion region;

    if (!region.readFromMemory(bytes->data(), bytes->size())) {

        return false;

    }

    region.computeRegionComplexity();

    region.isComplex();

    SkRegion r2;

    if (region == r2) {

        region.contains(0,0);

    } else {

        region.contains(1,1);

    }

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

    if (!s) {

        // May return nullptr in memory-constrained fuzzing environments

        return false;

    }

    s->getCanvas()->drawRegion(region, SkPaint());

    SkDEBUGCODE(SkRegionPriv::Validate(region));

    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 > 512) {

        return 0;

    }

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

    FuzzRegionDeserialize(bytes);

    return 0;

}

#endif