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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fuzzer/FuzzedDataProvider.h>
#include <algorithm>
#include <vector>
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/color_analysis.h"
#include "ui/gfx/color_utils.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
FuzzedDataProvider provider(data, size);
// Limit width and height for performance.
int width = provider.ConsumeIntegralInRange<int>(1, 100);
int height = provider.ConsumeIntegralInRange<int>(1, 100);
SkImageInfo info = SkImageInfo::MakeN32Premul(width, height);
size_t expected_size = info.computeMinByteSize();
const double lower_bound_hue = provider.ConsumeFloatingPointInRange(0.0, 1.0);
const double upper_bound_hue = provider.ConsumeFloatingPointInRange(
lower_bound_hue, lower_bound_hue + 1);
const double s1 = provider.ConsumeFloatingPointInRange(0.0, 1.0);
const double s2 = provider.ConsumeFloatingPointInRange(0.0, 1.0);
const double l1 = provider.ConsumeFloatingPointInRange(0.0, 1.0);
const double l2 = provider.ConsumeFloatingPointInRange(0.0, 1.0);
color_utils::HSL upper_bound = {upper_bound_hue, std::max(s1, s2),
std::max(l1, l2)};
color_utils::HSL lower_bound = {lower_bound_hue, std::min(s1, s2),
std::min(l1, l2)};
bool find_closest = provider.ConsumeBool();
// Ensure that we have enough data for this image.
std::vector<uint8_t> image_data =
provider.ConsumeBytes<uint8_t>(expected_size);
if (image_data.size() < expected_size)
return 0;
SkBitmap bitmap;
bitmap.installPixels(info, image_data.data(), info.minRowBytes());
color_utils::CalculateKMeanColorOfBitmap(
bitmap, provider.ConsumeIntegralInRange<int>(-1, height + 2), lower_bound,
upper_bound, find_closest);
return 0;
}
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