| // 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_PDF417DECODEDBITSTREAMPARSER_H_ |
| #define XFA_FXBARCODE_PDF417_BC_PDF417DECODEDBITSTREAMPARSER_H_ |
| |
| #include "core/fxcrt/include/fx_basic.h" |
| #include "core/fxcrt/include/fx_string.h" |
| |
| class CBC_CommonDecoderResult; |
| class CBC_PDF417ResultMetadata; |
| |
| class CBC_DecodedBitStreamPaser { |
| public: |
| CBC_DecodedBitStreamPaser(); |
| virtual ~CBC_DecodedBitStreamPaser(); |
| |
| static void Initialize(); |
| static void Finalize(); |
| static CBC_CommonDecoderResult* decode(CFX_Int32Array& codewords, |
| CFX_ByteString ecLevel, |
| int32_t& e); |
| |
| private: |
| enum Mode { ALPHA, LOWER, MIXED, PUNCT, ALPHA_SHIFT, PUNCT_SHIFT }; |
| static int32_t MAX_NUMERIC_CODEWORDS; |
| static int32_t PL; |
| static int32_t LL; |
| static int32_t AS; |
| static int32_t ML; |
| static int32_t AL; |
| static int32_t PS; |
| static int32_t PAL; |
| static FX_CHAR PUNCT_CHARS[29]; |
| static FX_CHAR MIXED_CHARS[30]; |
| static int32_t NUMBER_OF_SEQUENCE_CODEWORDS; |
| static int32_t decodeMacroBlock(CFX_Int32Array& codewords, |
| int32_t codeIndex, |
| CBC_PDF417ResultMetadata* resultMetadata, |
| int32_t& e); |
| static int32_t textCompaction(CFX_Int32Array& codewords, |
| int32_t codeIndex, |
| CFX_ByteString& result); |
| static void decodeTextCompaction(CFX_Int32Array& textCompactionData, |
| CFX_Int32Array& byteCompactionData, |
| int32_t length, |
| CFX_ByteString& result); |
| static int32_t byteCompaction(int32_t mode, |
| CFX_Int32Array& codewords, |
| int32_t codeIndex, |
| CFX_ByteString& result); |
| static int32_t numericCompaction(CFX_Int32Array& codewords, |
| int32_t codeIndex, |
| CFX_ByteString& result, |
| int32_t& e); |
| static CFX_ByteString decodeBase900toBase10(CFX_Int32Array& codewords, |
| int32_t count, |
| int32_t& e); |
| }; |
| |
| #endif // XFA_FXBARCODE_PDF417_BC_PDF417DECODEDBITSTREAMPARSER_H_ |