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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_TEST_PIXEL_TEST_UTILS_H_
#define CC_TEST_PIXEL_TEST_UTILS_H_
#include <string>
#include "base/files/file_path.h"
#include "cc/test/pixel_comparator.h"
class SkBitmap;
namespace cc {
// Encodes a bitmap into a PNG and write to disk. Returns true on success. The
// parent directory does not have to exist.
[[nodiscard]] bool WritePNGFile(const SkBitmap& bitmap,
const base::FilePath& file_path,
bool discard_transparency);
// Reads and decodes a PNG image to a bitmap. Returns a non-null SkBitmap on
// success. The PNG should have been encoded using `gfx::PNGCodec::Encode`.
SkBitmap ReadPNGFile(const base::FilePath& file_path);
std::string GetPNGDataUrl(const SkBitmap& bitmap);
// Compares with a PNG file on disk using the given PixelComparator, and returns
// true if the comparator returns a match. `ref_img_path` is absolute.
bool MatchesPNGFile(const SkBitmap& gen_bmp,
base::FilePath ref_img_path,
const PixelComparator& comparator);
// Compares two bitmaps using the given PixelComparator, and returns true if the
// comparator returns a match.
bool MatchesBitmap(const SkBitmap& gen_bmp,
const SkBitmap& ref_bmp,
const PixelComparator& comparator);
} // namespace cc
#endif // CC_TEST_PIXEL_TEST_UTILS_H_
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