// 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 _BC_DECODEDBITSTREAMPARSER_H_ | |
#define _BC_DECODEDBITSTREAMPARSER_H_ | |
class CBC_CommonDecoderResult; | |
class CBC_PDF417ResultMetadata; | |
class CBC_DecodedBitStreamPaser; | |
class CBC_DecodedBitStreamPaser : public CFX_Object | |
{ | |
public: | |
CBC_DecodedBitStreamPaser(); | |
virtual ~CBC_DecodedBitStreamPaser(); | |
static void Initialize(); | |
static void Finalize(); | |
static CBC_CommonDecoderResult* decode(CFX_Int32Array &codewords, CFX_ByteString ecLevel, FX_INT32 &e); | |
private: | |
enum Mode { | |
ALPHA, | |
LOWER, | |
MIXED, | |
PUNCT, | |
ALPHA_SHIFT, | |
PUNCT_SHIFT | |
}; | |
static FX_INT32 MAX_NUMERIC_CODEWORDS; | |
static FX_INT32 PL; | |
static FX_INT32 LL; | |
static FX_INT32 AS; | |
static FX_INT32 ML; | |
static FX_INT32 AL; | |
static FX_INT32 PS; | |
static FX_INT32 PAL; | |
static FX_CHAR PUNCT_CHARS[29]; | |
static FX_CHAR MIXED_CHARS[30]; | |
static FX_INT32 NUMBER_OF_SEQUENCE_CODEWORDS; | |
static FX_INT32 decodeMacroBlock(CFX_Int32Array &codewords, FX_INT32 codeIndex, CBC_PDF417ResultMetadata* resultMetadata, FX_INT32 &e); | |
static FX_INT32 textCompaction(CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result); | |
static void decodeTextCompaction(CFX_Int32Array &textCompactionData, CFX_Int32Array &byteCompactionData, FX_INT32 length, CFX_ByteString &result); | |
static FX_INT32 byteCompaction(FX_INT32 mode, CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result); | |
static FX_INT32 numericCompaction(CFX_Int32Array &codewords, FX_INT32 codeIndex, CFX_ByteString &result, FX_INT32 &e); | |
static CFX_ByteString decodeBase900toBase10(CFX_Int32Array &codewords, FX_INT32 count, FX_INT32 &e); | |
}; | |
#endif |