// 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_SRC_FXBARCODE_PDF417_BC_PDF417DECODEDBITSTREAMPARSER_H_ | |
#define XFA_SRC_FXBARCODE_PDF417_BC_PDF417DECODEDBITSTREAMPARSER_H_ | |
#include "core/include/fxcrt/fx_basic.h" | |
#include "core/include/fxcrt/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_SRC_FXBARCODE_PDF417_BC_PDF417DECODEDBITSTREAMPARSER_H_ |