1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 
7 #ifndef _BC_PDF417CODEWORDDECODER_H_
8 #define _BC_PDF417CODEWORDDECODER_H_
9 class CBC_PDF417CodewordDecoder;
10 #define column 8
11 class CBC_PDF417Common;
12 class CBC_PDF417CodewordDecoder {
13  public:
14   CBC_PDF417CodewordDecoder();
15   virtual ~CBC_PDF417CodewordDecoder();
16   static void Initialize();
17   static void Finalize();
18   static int32_t getDecodedValue(CFX_Int32Array& moduleBitCount);
19 
20  private:
21   static FX_FLOAT RATIOS_TABLE[][8];
22   static CFX_Int32Array* sampleBitCounts(CFX_Int32Array& moduleBitCount);
23   static int32_t getDecodedCodewordValue(CFX_Int32Array& moduleBitCount);
24   static int32_t getBitValue(CFX_Int32Array& moduleBitCount);
25   static int32_t getClosestDecodedValue(CFX_Int32Array& moduleBitCount);
26 };
27 #endif
28