xfa/fxbarcode/pdf417/BC_PDF417CodewordDecoder.h

// Copyright 2014 PDFium Authors. All rights reserved.
// 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

#ifndef XFA_FXBARCODE_PDF417_BC_PDF417CODEWORDDECODER_H_
#define XFA_FXBARCODE_PDF417_BC_PDF417CODEWORDDECODER_H_

#include "core/fxcrt/include/fx_basic.h"

class CBC_PDF417CodewordDecoder {
 public:
  CBC_PDF417CodewordDecoder();
  virtual ~CBC_PDF417CodewordDecoder();
  static void Initialize();
  static void Finalize();
  static int32_t getDecodedValue(CFX_Int32Array& moduleBitCount);

 private:
  static CFX_Int32Array* sampleBitCounts(CFX_Int32Array& moduleBitCount);
  static int32_t getDecodedCodewordValue(CFX_Int32Array& moduleBitCount);
  static int32_t getBitValue(CFX_Int32Array& moduleBitCount);
  static int32_t getClosestDecodedValue(CFX_Int32Array& moduleBitCount);
};

#endif  // XFA_FXBARCODE_PDF417_BC_PDF417CODEWORDDECODER_H_