chromium/third_party/pdfium/fxbarcode/pdf417/BC_PDF417ErrorCorrection.cpp

// Copyright 2014 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
// Original code is licensed as follows:
/*
 * Copyright 2006 Jeremias Maerki in part, and ZXing Authors in part
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "fxbarcode/pdf417/BC_PDF417ErrorCorrection.h"

#include <stdint.h>

#include <array>

#include "core/fxcrt/data_vector.h"
#include "core/fxcrt/span.h"

namespace {

const uint16_t EC_LEVEL_0_COEFFICIENTS[2] = …;
const uint16_t EC_LEVEL_1_COEFFICIENTS[4] = …;
const uint16_t EC_LEVEL_2_COEFFICIENTS[8] = …;

const uint16_t EC_LEVEL_3_COEFFICIENTS[16] = …;

const uint16_t EC_LEVEL_4_COEFFICIENTS[32] = …;

const uint16_t EC_LEVEL_5_COEFFICIENTS[64] = …;

const uint16_t EC_LEVEL_6_COEFFICIENTS[128] = …;

const uint16_t EC_LEVEL_7_COEFFICIENTS[256] = …;

const uint16_t EC_LEVEL_8_COEFFICIENTS[512] = …;

constexpr std::array<pdfium::span<const uint16_t>, 9> EC_COEFFICIENTS = …;

}  // namespace

// static
int32_t CBC_PDF417ErrorCorrection::GetErrorCorrectionCodewordCount(
    int32_t errorCorrectionLevel) { … }

// static
std::optional<WideString> CBC_PDF417ErrorCorrection::GenerateErrorCorrection(
    const WideString& dataCodewords,
    int32_t errorCorrectionLevel) { … }