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// 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_
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