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Dependents:   epaper_mbed_test_copy1

QR_Encode.h@0:9efeb5787ae9, 2014-04-08 (annotated)

Committer:
fenoth
Date:
Tue Apr 08 10:08:03 2014 +0000
Revision:
0:9efeb5787ae9
qr

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fenoth 0:9efeb5787ae9 1 /*
fenoth 0:9efeb5787ae9 2 * QR_Encode.h
fenoth 0:9efeb5787ae9 3 *
fenoth 0:9efeb5787ae9 4 * Created on: Jan 18, 2012
fenoth 0:9efeb5787ae9 5 * Author: swex
fenoth 0:9efeb5787ae9 6 */
fenoth 0:9efeb5787ae9 7
fenoth 0:9efeb5787ae9 8 #include <string.h>
fenoth 0:9efeb5787ae9 9 #include <stdlib.h>
fenoth 0:9efeb5787ae9 10
fenoth 0:9efeb5787ae9 11
fenoth 0:9efeb5787ae9 12 // Constant
fenoth 0:9efeb5787ae9 13
fenoth 0:9efeb5787ae9 14 // Error correction level
fenoth 0:9efeb5787ae9 15 #define QR_LEVEL_L 0
fenoth 0:9efeb5787ae9 16 #define QR_LEVEL_M 1
fenoth 0:9efeb5787ae9 17 #define QR_LEVEL_Q 2
fenoth 0:9efeb5787ae9 18 #define QR_LEVEL_H 3
fenoth 0:9efeb5787ae9 19
fenoth 0:9efeb5787ae9 20
fenoth 0:9efeb5787ae9 21 //Data Mode
fenoth 0:9efeb5787ae9 22 #define QR_MODE_NUMERAL 0
fenoth 0:9efeb5787ae9 23 #define QR_MODE_ALPHABET 1
fenoth 0:9efeb5787ae9 24 #define QR_MODE_8BIT 2
fenoth 0:9efeb5787ae9 25 #define QR_MODE_KANJI 3
fenoth 0:9efeb5787ae9 26
fenoth 0:9efeb5787ae9 27
fenoth 0:9efeb5787ae9 28 //Group version (model number)
fenoth 0:9efeb5787ae9 29 #define QR_VERSION_S 0 // 1 ~ 9
fenoth 0:9efeb5787ae9 30 #define QR_VERSION_M 1 // 10 ~ 26
fenoth 0:9efeb5787ae9 31 #define QR_VERSION_L 2 // 27 ~ 40
fenoth 0:9efeb5787ae9 32
fenoth 0:9efeb5787ae9 33 #define MAX_ALLCODEWORD 3706 //The maximum total number of code words
fenoth 0:9efeb5787ae9 34 #define MAX_DATACODEWORD 2956 //Maximum data word code (version 40-L)
fenoth 0:9efeb5787ae9 35
fenoth 0:9efeb5787ae9 36 #define MAX_CODEBLOCK 153 //(Including RS code word) the maximum number of block data code word
fenoth 0:9efeb5787ae9 37 #define MAX_MODULESIZE 177 //Maximum number of modules in a side
fenoth 0:9efeb5787ae9 38 #define MAX_BITDATA 3917 // finfile data
fenoth 0:9efeb5787ae9 39
fenoth 0:9efeb5787ae9 40 //Margin when drawing a bitmap
fenoth 0:9efeb5787ae9 41 //#define QR_MARGIN 4
fenoth 0:9efeb5787ae9 42
fenoth 0:9efeb5787ae9 43
fenoth 0:9efeb5787ae9 44 /////////////////////////////////////////////////////////////////////////////
fenoth 0:9efeb5787ae9 45
fenoth 0:9efeb5787ae9 46 typedef struct tagRS_BLOCKINFO
fenoth 0:9efeb5787ae9 47 {
fenoth 0:9efeb5787ae9 48 int ncRSBlock; //RS block number
fenoth 0:9efeb5787ae9 49 int ncAllCodeWord; //The number of codewords in the block
fenoth 0:9efeb5787ae9 50 int ncDataCodeWord; //The number of data code words (the number of code words - the number of RS code word)
fenoth 0:9efeb5787ae9 51
fenoth 0:9efeb5787ae9 52 } RS_BLOCKINFO, *LPRS_BLOCKINFO;
fenoth 0:9efeb5787ae9 53
fenoth 0:9efeb5787ae9 54
fenoth 0:9efeb5787ae9 55
fenoth 0:9efeb5787ae9 56 /////////////////////////////////////////////////////////////////////////////
fenoth 0:9efeb5787ae9 57 //Version code-related information (model number)
fenoth 0:9efeb5787ae9 58
fenoth 0:9efeb5787ae9 59 typedef struct tagQR_VERSIONINFO
fenoth 0:9efeb5787ae9 60 {
fenoth 0:9efeb5787ae9 61 int nVersionNo;
fenoth 0:9efeb5787ae9 62 int ncAllCodeWord;
fenoth 0:9efeb5787ae9 63
fenoth 0:9efeb5787ae9 64 // Error correction levels (0 = L, 1 = M, 2 = Q, 3 = H)
fenoth 0:9efeb5787ae9 65 int ncDataCodeWord[4]; // data len
fenoth 0:9efeb5787ae9 66
fenoth 0:9efeb5787ae9 67 int ncAlignPoint; // position
fenoth 0:9efeb5787ae9 68 int nAlignPoint[6]; // numberof
fenoth 0:9efeb5787ae9 69
fenoth 0:9efeb5787ae9 70 RS_BLOCKINFO RS_BlockInfo1[4]; // EC pos
fenoth 0:9efeb5787ae9 71 RS_BLOCKINFO RS_BlockInfo2[4]; // EC pos
fenoth 0:9efeb5787ae9 72
fenoth 0:9efeb5787ae9 73 } QR_VERSIONINFO, *LPQR_VERSIONINFO;
fenoth 0:9efeb5787ae9 74
fenoth 0:9efeb5787ae9 75
fenoth 0:9efeb5787ae9 76 typedef unsigned short WORD;
fenoth 0:9efeb5787ae9 77
fenoth 0:9efeb5787ae9 78 typedef unsigned char BYTE;
fenoth 0:9efeb5787ae9 79
fenoth 0:9efeb5787ae9 80 typedef BYTE* LPBYTE;
fenoth 0:9efeb5787ae9 81
fenoth 0:9efeb5787ae9 82 typedef const char* LPCSTR;
fenoth 0:9efeb5787ae9 83
fenoth 0:9efeb5787ae9 84 #define ZeroMemory(Destination,Length) memset((Destination),0,(Length))
fenoth 0:9efeb5787ae9 85 int EncodeData(int nLevel, int nVersion , LPCSTR lpsSource, int sourcelen,unsigned char QR_m_data[]);
fenoth 0:9efeb5787ae9 86
fenoth 0:9efeb5787ae9 87 /*nLevel - уровень коррекции ошибок
fenoth 0:9efeb5787ae9 88 #define QR_LEVEL_L 0
fenoth 0:9efeb5787ae9 89 #define QR_LEVEL_M 1
fenoth 0:9efeb5787ae9 90 #define QR_LEVEL_Q 2
fenoth 0:9efeb5787ae9 91 #define QR_LEVEL_H 3
fenoth 0:9efeb5787ae9 92
fenoth 0:9efeb5787ae9 93 nVersion - версия кода 1 - 40 разрешение итд 0 - автоопределение исходя из размера
fenoth 0:9efeb5787ae9 94
fenoth 0:9efeb5787ae9 95 lpsSource - данные на вход
fenoth 0:9efeb5787ae9 96 sourcelen - длинна строки 0 - автоопределение, strlen \0 оборвет.
fenoth 0:9efeb5787ae9 97 QR_m_data - массив для записи, пишет в биты.
fenoth 0:9efeb5787ae9 98
fenoth 0:9efeb5787ae9 99 функция возвращает сторону квадрата.
fenoth 0:9efeb5787ae9 100 */