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_DATAMATRIXDECODEDBITSTREAMPARSER_H_ 8 #define _BC_DATAMATRIXDECODEDBITSTREAMPARSER_H_ 9 class CBC_CommonDecoderResult; 10 class CBC_CommonBitSource; 11 class CBC_DataMatrixDecodedBitStreamParser { 12 public: 13 CBC_DataMatrixDecodedBitStreamParser(); 14 virtual ~CBC_DataMatrixDecodedBitStreamParser(); 15 static CBC_CommonDecoderResult* Decode(CFX_ByteArray& bytes, int32_t& e); 16 17 private: 18 static int32_t DecodeAsciiSegment(CBC_CommonBitSource* bits, 19 CFX_ByteString& result, 20 CFX_ByteString& resultTrailer, 21 int32_t& e); 22 static void DecodeC40Segment(CBC_CommonBitSource* bits, 23 CFX_ByteString& result, 24 int32_t& e); 25 static void DecodeTextSegment(CBC_CommonBitSource* bits, 26 CFX_ByteString& result, 27 int32_t& e); 28 static void DecodeAnsiX12Segment(CBC_CommonBitSource* bits, 29 CFX_ByteString& result, 30 int32_t& e); 31 static void ParseTwoBytes(int32_t firstByte, 32 int32_t secondByte, 33 CFX_Int32Array& result); 34 static void DecodeEdifactSegment(CBC_CommonBitSource* bits, 35 CFX_ByteString& result, 36 int32_t& e); 37 static void DecodeBase256Segment(CBC_CommonBitSource* bits, 38 CFX_ByteString& result, 39 CFX_Int32Array& byteSegments, 40 int32_t& e); 41 static uint8_t Unrandomize255State(int32_t randomizedBase256Codeword, 42 int32_t base256CodewordPosition); 43 44 const static FX_CHAR C40_BASIC_SET_CHARS[]; 45 const static FX_CHAR C40_SHIFT2_SET_CHARS[]; 46 47 const static FX_CHAR TEXT_BASIC_SET_CHARS[]; 48 const static FX_CHAR TEXT_SHIFT3_SET_CHARS[]; 49 const static int32_t PAD_ENCODE; 50 const static int32_t ASCII_ENCODE; 51 const static int32_t C40_ENCODE; 52 const static int32_t TEXT_ENCODE; 53 const static int32_t ANSIX12_ENCODE; 54 const static int32_t EDIFACT_ENCODE; 55 const static int32_t BASE256_ENCODE; 56 }; 57 #endif 58
