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QR_Encode.c
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QR_Encode.c
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#include "QR_Encode.h"
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef QR_ENCODE_CONFIG
#include <QR_Encode_config.h>
#else
#ifndef QR_IMAGE_STORAGE_ATTRIBUTE_NOINIT
#define QR_IMAGE_STORAGE_ATTRIBUTE_NOINIT
#endif // #ifndef QR_IMAGE_STORAGE_ATTRIBUTE_NOINIT
#ifndef QR_STORAGE_ATTRIBUTE_EXTERNAL_RAM
#define QR_STORAGE_ATTRIBUTE_EXTERNAL_RAM
#endif //#ifndef QR_STORAGE_ATTRIBUTE_EXTERNAL_RAM
#ifndef QR_ENCODE_CUSTOM_OUTPUT
typedef enum {
QR_ColorWhite = 0,
QR_ColorBlack = 1
} QR_COLOR;
static void putBitToPos(unsigned int pos, QR_COLOR bw, uint8_t* bits)
{
if (bw == QR_ColorWhite) {
//assume all data zeroed before
return;
}
static const uint8_t bitpos[8] = { 128, 64, 32, 16, 8, 4, 2, 1 };
bits[pos / 8] |= bitpos[pos % 8];
}
static void doQrOutput(uint8_t m_byModuleData[MAX_MODULESIZE][MAX_MODULESIZE], int nSymbolSize, uint8_t* output)
{
memset(output, 0, MAX_BITDATA);
for (int i = 0; i < nSymbolSize; i++) {
for (int j = 0; j < nSymbolSize; j++) {
if (m_byModuleData[i][j]) {
putBitToPos((j * nSymbolSize) + i, QR_ColorBlack, output);
}
}
}
}
#endif // ifndef QR_ENCODE_CUSTOM_OUTPUT
#endif //QR_ENCODE_CONFIG
typedef struct {
int16_t ncRSBlock; //RS block number
int16_t ncAllCodeWord; //The number of codewords in the block
int16_t ncDataCodeWord; //The number of data code words (the number of code words - the number of RS code word)
} RS_BLOCKINFO;
/* Group version (model number) */
typedef enum {
QR_VERSION_S = (0), /* 1 ~ 9 */
QR_VERSION_M = (1), /* 10 ~ 26 */
QR_VERSION_L = (2), /* 27 ~ 40 */
} QR_VersionModel;
/////////////////////////////////////////////////////////////////////////////
//Version code-related information (model number)
typedef struct {
int16_t nVersionNo;
int16_t ncAllCodeWord;
// Error correction levels (0 = L, 1 = M, 2 = Q, 3 = H)
int16_t ncDataCodeWord[4]; // data len
int16_t ncAlignPoint; // position
int16_t nAlignPoint[6]; // numberof
RS_BLOCKINFO RS_BlockInfo1[4]; // EC pos
RS_BLOCKINFO RS_BlockInfo2[4]; // EC pos
} QR_VERSIONINFO;
#ifndef ZeroMemory
#define ZeroMemory(Destination, Length) memset((Destination), 0, (Length))
#endif //ifndef ZeroMemory
typedef struct {
QR_Level nLevel;
int nVersion;
QR_MaskPattern nMaskingNo;
int ncDataCodeWordBit, ncAllCodeWord;
int nEncodeVersion;
int ncDataBlock;
int nSymbolSize;
} QR_ENCODING_CONTEXT;
// clang-format off
static const QR_VERSIONINFO QR_VersionInfo[] = {{0}, // (Ver.0)
{ 1, // Ver.1
26, {19, 16, 13, 9},
0, {0, 0, 0, 0, 0, 0},
{{1, 26, 19},
{1, 26, 16},
{1, 26, 13},
{1, 26, 9}},
{{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}},
{ 2, // Ver.2
44, {34, 28, 22, 16},
1, {18, 0, 0, 0, 0, 0},
{{1, 44, 34},
{1, 44, 28},
{1, 44, 22},
{1, 44, 16}},
{{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}},
{ 3, // Ver.3
70, {55, 44, 34, 26},
1, {22, 0, 0, 0, 0, 0},
{{1, 70, 55},
{1, 70, 44},
{2, 35, 17},
{2, 35, 13}},
{{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}},
{ 4, // Ver.4
100, {80, 64, 48, 36},
1, {26, 0, 0, 0, 0, 0},
{{1, 100, 80},
{2, 50, 32},
{2, 50, 24},
{4, 25, 9}},
{{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}},
{ 5, // Ver.5
134, {108, 86, 62, 46},
1, {30, 0, 0, 0, 0, 0},
{{1, 134, 108},
{2, 67, 43},
{2, 33, 15},
{2, 33, 11}},
{{0, 0, 0},
{0, 0, 0},
{2, 34, 16},
{2, 34, 12}}},
{ 6, // Ver.6
172, {136, 108, 76, 60},
1, {34, 0, 0, 0, 0, 0},
{{2, 86, 68},
{4, 43, 27},
{4, 43, 19},
{4, 43, 15}},
{{0, 0, 0},
{0, 0, 0},
{0, 0, 0},
{0, 0, 0}}},
{ 7, // Ver.7
196, {156, 124, 88, 66},
2, {22, 38, 0, 0, 0, 0},
{{2, 98, 78},
{4, 49, 31},
{2, 32, 14},
{4, 39, 13}},
{{0, 0, 0},
{0, 0, 0},
{4, 33, 15},
{1, 40, 14}}},
{ 8, // Ver.8
242, {194, 154, 110, 86},
2, {24, 42, 0, 0, 0, 0},
{{2, 121, 97},
{2, 60, 38},
{4, 40, 18},
{4, 40, 14}},
{{0, 0, 0},
{2, 61, 39},
{2, 41, 19},
{2, 41, 15}}},
{ 9, // Ver.9
292, {232, 182, 132, 100},
2, {26, 46, 0, 0, 0, 0},
{{2, 146, 116},
{3, 58, 36},
{4, 36, 16},
{4, 36, 12}},
{{0, 0, 0},
{2, 59, 37},
{4, 37, 17},
{4, 37, 13}}},
{10, // Ver.10
346, {274, 216, 154, 122},
2, {28, 50, 0, 0, 0, 0},
{{2, 86, 68},
{4, 69, 43},
{6, 43, 19},
{6, 43, 15}},
{{2, 87, 69},
{1, 70, 44},
{2, 44, 20},
{2, 44, 16}}},
{11, // Ver.11
404, {324, 254, 180, 140},
2, {30, 54, 0, 0, 0, 0},
{{4, 101, 81},
{1, 80, 50},
{4, 50, 22},
{3, 36, 12}},
{{0, 0, 0},
{4, 81, 51},
{4, 51, 23},
{8, 37, 13}}},
{12, // Ver.12
466, {370, 290, 206, 158},
2, {32, 58, 0, 0, 0, 0},
{{2, 116, 92},
{6, 58, 36},
{4, 46, 20},
{7, 42, 14}},
{{2, 117, 93},
{2, 59, 37},
{6, 47, 21},
{4, 43, 15}}},
{13, // Ver.13
532, {428, 334, 244, 180},
2, {34, 62, 0, 0, 0, 0},
{{4, 133, 107},
{8, 59, 37},
{8, 44, 20},
{12, 33, 11}},
{{0, 0, 0},
{1, 60, 38},
{4, 45, 21},
{4, 34, 12}}},
{14, // Ver.14
581, {461, 365, 261, 197},
3, {26, 46, 66, 0, 0, 0},
{{3, 145, 115},
{4, 64, 40},
{11, 36, 16},
{11, 36, 12}},
{{1, 146, 116},
{5, 65, 41},
{5, 37, 17},
{5, 37, 13}}},
{15, // Ver.15
655, {523, 415, 295, 223},
3, {26, 48, 70, 0, 0, 0},
{{5, 109, 87},
{5, 65, 41},
{5, 54, 24},
{11, 36, 12}},
{{1, 110, 88},
{5, 66, 42},
{7, 55, 25},
{7, 37, 13}}},
{16, // Ver.16
733, {589, 453, 325, 253},
3, {26, 50, 74, 0, 0, 0},
{{5, 122, 98},
{7, 73, 45},
{15, 43, 19},
{3, 45, 15}},
{{1, 123, 99},
{3, 74, 46},
{2, 44, 20},
{13, 46, 16}}},
{17, // Ver.17
815, {647, 507, 367, 283},
3, {30, 54, 78, 0, 0, 0},
{{1, 135, 107},
{10, 74, 46},
{1, 50, 22},
{2, 42, 14}},
{{5, 136, 108},
{1, 75, 47},
{15, 51, 23},
{17, 43, 15}}},
{18, // Ver.18
901, {721, 563, 397, 313},
3, {30, 56, 82, 0, 0, 0},
{{5, 150, 120},
{9, 69, 43},
{17, 50, 22},
{2, 42, 14}},
{{1, 151, 121},
{4, 70, 44},
{1, 51, 23},
{19, 43, 15}}},
{19, // Ver.19
991, {795, 627, 445, 341},
3, {30, 58, 86, 0, 0, 0},
{{3, 141, 113},
{3, 70, 44},
{17, 47, 21},
{9, 39, 13}},
{{4, 142, 114},
{11, 71, 45},
{4, 48, 22},
{16, 40, 14}}},
{20, // Ver.20
1085, {861, 669, 485, 385},
3, {34, 62, 90, 0, 0, 0},
{{3, 135, 107},
{3, 67, 41},
{15, 54, 24},
{15, 43, 15}},
{{5, 136, 108},
{13, 68, 42},
{5, 55, 25},
{10, 44, 16}}},
{21, // Ver.21
1156, {932, 714, 512, 406},
4, {28, 50, 72, 94, 0, 0},
{{4, 144, 116},
{17, 68, 42},
{17, 50, 22},
{19, 46, 16}},
{{4, 145, 117},
{0, 0, 0},
{6, 51, 23},
{6, 47, 17}}},
{22, // Ver.22
1258, {1006, 782, 568, 442},
4, {26, 50, 74, 98, 0, 0},
{{2, 139, 111},
{17, 74, 46},
{7, 54, 24},
{34, 37, 13}},
{{7, 140, 112},
{0, 0, 0},
{16, 55, 25},
{0, 0, 0}}},
{23, // Ver.23
1364, {1094, 860, 614, 464},
4, {30, 54, 78, 102, 0, 0},
{{4, 151, 121},
{4, 75, 47},
{11, 54, 24},
{16, 45, 15}},
{{5, 152, 122},
{14, 76, 48},
{14, 55, 25},
{14, 46, 16}}},
{24, // Ver.24
1474, {1174, 914, 664, 514},
4, {28, 54, 80, 106, 0, 0},
{{6, 147, 117},
{6, 73, 45},
{11, 54, 24},
{30, 46, 16}},
{{4, 148, 118},
{14, 74, 46},
{16, 55, 25},
{2, 47, 17}}},
{25, // Ver.25
1588, {1276, 1000, 718, 538},
4, {32, 58, 84, 110, 0, 0},
{{8, 132, 106},
{8, 75, 47},
{7, 54, 24},
{22, 45, 15}},
{{4, 133, 107},
{13, 76, 48},
{22, 55, 25},
{13, 46, 16}}},
{26, // Ver.26
1706, {1370, 1062, 754, 596},
4, {30, 58, 86, 114, 0, 0},
{{10, 142, 114},
{19, 74, 46},
{28, 50, 22},
{33, 46, 16}},
{{2, 143, 115},
{4, 75, 47},
{6, 51, 23},
{4, 47, 17}}},
{27, // Ver.27
1828, {1468, 1128, 808, 628},
4, {34, 62, 90, 118, 0, 0},
{{8, 152, 122},
{22, 73, 45},
{8, 53, 23},
{12, 45, 15}},
{{4, 153, 123},
{3, 74, 46},
{26, 54, 24},
{28, 46, 16}}},
{28, // Ver.28
1921, {1531, 1193, 871, 661},
5, {26, 50, 74, 98, 122, 0},
{{3, 147, 117},
{3, 73, 45},
{4, 54, 24},
{11, 45, 15}},
{{10, 148, 118},
{23, 74, 46},
{31, 55, 25},
{31, 46, 16}}},
{29, // Ver.29
2051, {1631, 1267, 911, 701},
5, {30, 54, 78, 102, 126, 0},
{{7, 146, 116},
{21, 73, 45},
{1, 53, 23},
{19, 45, 15}},
{{7, 147, 117},
{7, 74, 46},
{37, 54, 24},
{26, 46, 16}}},
{30, // Ver.30
2185, {1735, 1373, 985, 745},
5, {26, 52, 78, 104, 130, 0},
{{5, 145, 115},
{19, 75, 47},
{15, 54, 24},
{23, 45, 15}},
{{10, 146, 116},
{10, 76, 48},
{25, 55, 25},
{25, 46, 16}}},
{31, // Ver.31
2323, {1843, 1455, 1033, 793},
5, {30, 56, 82, 108, 134, 0},
{{13, 145, 115},
{2, 74, 46},
{42, 54, 24},
{23, 45, 15}},
{{3, 146, 116},
{29, 75, 47},
{1, 55, 25},
{28, 46, 16}}},
{32, // Ver.32
2465, {1955, 1541, 1115, 845},
5, {34, 60, 86, 112, 138, 0},
{{17, 145, 115},
{10, 74, 46},
{10, 54, 24},
{19, 45, 15}},
{{0, 0, 0},
{23, 75, 47},
{35, 55, 25},
{35, 46, 16}}},
{33, // Ver.33
2611, {2071, 1631, 1171, 901},
5, {30, 58, 86, 114, 142, 0},
{{17, 145, 115},
{14, 74, 46},
{29, 54, 24},
{11, 45, 15}},
{{1, 146, 116},
{21, 75, 47},
{19, 55, 25},
{46, 46, 16}}},
{34, // Ver.34
2761, {2191, 1725, 1231, 961},
5, {34, 62, 90, 118, 146, 0},
{{13, 145, 115},
{14, 74, 46},
{44, 54, 24},
{59, 46, 16}},
{{6, 146, 116},
{23, 75, 47},
{7, 55, 25},
{1, 47, 17}}},
{35, // Ver.35
2876, {2306, 1812, 1286, 986},
6, {30, 54, 78, 102, 126, 150},
{{12, 151, 121},
{12, 75, 47},
{39, 54, 24},
{22, 45, 15}},
{{7, 152, 122},
{26, 76, 48},
{14, 55, 25},
{41, 46, 16}}},
{36, // Ver.36
3034, {2434, 1914, 1354, 1054},
6, {24, 50, 76, 102, 128, 154},
{{6, 151, 121},
{6, 75, 47},
{46, 54, 24},
{2, 45, 15}},
{{14, 152, 122},
{34, 76, 48},
{10, 55, 25},
{64, 46, 16}}},
{37, // Ver.37
3196, {2566, 1992, 1426, 1096},
6, {28, 54, 80, 106, 132, 158},
{{17, 152, 122},
{29, 74, 46},
{49, 54, 24},
{24, 45, 15}},
{{4, 153, 123},
{14, 75, 47},
{10, 55, 25},
{46, 46, 16}}},
{38, // Ver.38
3362, {2702, 2102, 1502, 1142},
6, {32, 58, 84, 110, 136, 162},
{{4, 152, 122},
{13, 74, 46},
{48, 54, 24},
{42, 45, 15}},
{{18, 153, 123},
{32, 75, 47},
{14, 55, 25},
{32, 46, 16}}},
{39, // Ver.39
3532, {2812, 2216, 1582, 1222},
6, {26, 54, 82, 110, 138, 166},
{{20, 147, 117},
{40, 75, 47},
{43, 54, 24},
{10, 45, 15}},
{{4, 148, 118},
{7, 76, 48},
{22, 55, 25},
{67, 46, 16}}},
{40, // Ver.40
3706, {2956, 2334, 1666, 1276},
6, {30, 58, 86, 114, 142, 170},
{{19, 148, 118},
{18, 75, 47},
{34, 54, 24},
{20, 45, 15}},
{{6, 149, 119},
{31, 76, 48},
{34, 55, 25},
{61, 46, 16}}}
};
//RS STUFF
static const uint8_t byExpToInt[] = { 1, 2, 4, 8, 16, 32, 64, 128, 29, 58, 116, 232, 205, 135, 19, 38,
76, 152, 45, 90, 180, 117, 234, 201, 143, 3, 6, 12, 24, 48, 96, 192,
157, 39, 78, 156, 37, 74, 148, 53, 106, 212, 181, 119, 238, 193, 159, 35,
70, 140, 5, 10, 20, 40, 80, 160, 93, 186, 105, 210, 185, 111, 222, 161,
95, 190, 97, 194, 153, 47, 94, 188, 101, 202, 137, 15, 30, 60, 120, 240,
253, 231, 211, 187, 107, 214, 177, 127, 254, 225, 223, 163, 91, 182, 113, 226,
217, 175, 67, 134, 17, 34, 68, 136, 13, 26, 52, 104, 208, 189, 103, 206,
129, 31, 62, 124, 248, 237, 199, 147, 59, 118, 236, 197, 151, 51, 102, 204,
133, 23, 46, 92, 184, 109, 218, 169, 79, 158, 33, 66, 132, 21, 42, 84,
168, 77, 154, 41, 82, 164, 85, 170, 73, 146, 57, 114, 228, 213, 183, 115,
230, 209, 191, 99, 198, 145, 63, 126, 252, 229, 215, 179, 123, 246, 241, 255,
227, 219, 171, 75, 150, 49, 98, 196, 149, 55, 110, 220, 165, 87, 174, 65,
130, 25, 50, 100, 200, 141, 7, 14, 28, 56, 112, 224, 221, 167, 83, 166,
81, 162, 89, 178, 121, 242, 249, 239, 195, 155, 43, 86, 172, 69, 138, 9,
18, 36, 72, 144, 61, 122, 244, 245, 247, 243, 251, 235, 203, 139, 11, 22,
44, 88, 176, 125, 250, 233, 207, 131, 27, 54, 108, 216, 173, 71, 142, 1};
static const uint8_t byIntToExp[] = { 0, 0, 1, 25, 2, 50, 26, 198, 3, 223, 51, 238, 27, 104, 199, 75,
4, 100, 224, 14, 52, 141, 239, 129, 28, 193, 105, 248, 200, 8, 76, 113,
5, 138, 101, 47, 225, 36, 15, 33, 53, 147, 142, 218, 240, 18, 130, 69,
29, 181, 194, 125, 106, 39, 249, 185, 201, 154, 9, 120, 77, 228, 114, 166,
6, 191, 139, 98, 102, 221, 48, 253, 226, 152, 37, 179, 16, 145, 34, 136,
54, 208, 148, 206, 143, 150, 219, 189, 241, 210, 19, 92, 131, 56, 70, 64,
30, 66, 182, 163, 195, 72, 126, 110, 107, 58, 40, 84, 250, 133, 186, 61,
202, 94, 155, 159, 10, 21, 121, 43, 78, 212, 229, 172, 115, 243, 167, 87,
7, 112, 192, 247, 140, 128, 99, 13, 103, 74, 222, 237, 49, 197, 254, 24,
227, 165, 153, 119, 38, 184, 180, 124, 17, 68, 146, 217, 35, 32, 137, 46,
55, 63, 209, 91, 149, 188, 207, 205, 144, 135, 151, 178, 220, 252, 190, 97,
242, 86, 211, 171, 20, 42, 93, 158, 132, 60, 57, 83, 71, 109, 65, 162,
31, 45, 67, 216, 183, 123, 164, 118, 196, 23, 73, 236, 127, 12, 111, 246,
108, 161, 59, 82, 41, 157, 85, 170, 251, 96, 134, 177, 187, 204, 62, 90,
203, 89, 95, 176, 156, 169, 160, 81, 11, 245, 22, 235, 122, 117, 44, 215,
79, 174, 213, 233, 230, 231, 173, 232, 116, 214, 244, 234, 168, 80, 88, 175};
static const uint8_t byRSExp7[] = {87, 229, 146, 149, 238, 102, 21};
static const uint8_t byRSExp10[] = {251, 67, 46, 61, 118, 70, 64, 94, 32, 45};
static const uint8_t byRSExp13[] = { 74, 152, 176, 100, 86, 100, 106, 104, 130, 218, 206, 140, 78};
static const uint8_t byRSExp15[] = { 8, 183, 61, 91, 202, 37, 51, 58, 58, 237, 140, 124, 5, 99, 105};
static const uint8_t byRSExp16[] = {120, 104, 107, 109, 102, 161, 76, 3, 91, 191, 147, 169, 182, 194, 225, 120};
static const uint8_t byRSExp17[] = { 43, 139, 206, 78, 43, 239, 123, 206, 214, 147, 24, 99, 150, 39, 243, 163, 136};
static const uint8_t byRSExp18[] = {215, 234, 158, 94, 184, 97, 118, 170, 79, 187, 152, 148, 252, 179, 5, 98, 96, 153};
static const uint8_t byRSExp20[] = { 17, 60, 79, 50, 61, 163, 26, 187, 202, 180, 221, 225, 83, 239, 156, 164, 212, 212, 188, 190};
static const uint8_t byRSExp22[] = {210, 171, 247, 242, 93, 230, 14, 109, 221, 53, 200, 74, 8, 172, 98, 80, 219, 134, 160, 105,
165, 231};
static const uint8_t byRSExp24[] = {229, 121, 135, 48, 211, 117, 251, 126, 159, 180, 169, 152, 192, 226, 228, 218, 111, 0, 117, 232,
87, 96, 227, 21};
static const uint8_t byRSExp26[] = {173, 125, 158, 2, 103, 182, 118, 17, 145, 201, 111, 28, 165, 53, 161, 21, 245, 142, 13, 102,
48, 227, 153, 145, 218, 70};
static const uint8_t byRSExp28[] = {168, 223, 200, 104, 224, 234, 108, 180, 110, 190, 195, 147, 205, 27, 232, 201, 21, 43, 245, 87,
42, 195, 212, 119, 242, 37, 9, 123};
static const uint8_t byRSExp30[] = { 41, 173, 145, 152, 216, 31, 179, 182, 50, 48, 110, 86, 239, 96, 222, 125, 42, 173, 226, 193,
224, 130, 156, 37, 251, 216, 238, 40, 192, 180};
static const uint8_t byRSExp32[] = { 10, 6, 106, 190, 249, 167, 4, 67, 209, 138, 138, 32, 242, 123, 89, 27, 120, 185, 80, 156,
38, 69, 171, 60, 28, 222, 80, 52, 254, 185, 220, 241};
static const uint8_t byRSExp34[] = {111, 77, 146, 94, 26, 21, 108, 19, 105, 94, 113, 193, 86, 140, 163, 125, 58, 158, 229, 239,
218, 103, 56, 70, 114, 61, 183, 129, 167, 13, 98, 62, 129, 51};
static const uint8_t byRSExp36[] = {200, 183, 98, 16, 172, 31, 246, 234, 60, 152, 115, 0, 167, 152, 113, 248, 238, 107, 18, 63,
218, 37, 87, 210, 105, 177, 120, 74, 121, 196, 117, 251, 113, 233, 30, 120};
static const uint8_t byRSExp38[] = {159, 34, 38, 228, 230, 59, 243, 95, 49, 218, 176, 164, 20, 65, 45, 111, 39, 81, 49, 118,
113, 222, 193, 250, 242, 168, 217, 41, 164, 247, 177, 30, 238, 18, 120, 153, 60, 193};
static const uint8_t byRSExp40[] = { 59, 116, 79, 161, 252, 98, 128, 205, 128, 161, 247, 57, 163, 56, 235, 106, 53, 26, 187, 174,
226, 104, 170, 7, 175, 35, 181, 114, 88, 41, 47, 163, 125, 134, 72, 20, 232, 53, 35, 15};
static const uint8_t byRSExp42[] = {250, 103, 221, 230, 25, 18, 137, 231, 0, 3, 58, 242, 221, 191, 110, 84, 230, 8, 188, 106,
96, 147, 15, 131, 139, 34, 101, 223, 39, 101, 213, 199, 237, 254, 201, 123, 171, 162, 194, 117,
50, 96};
static const uint8_t byRSExp44[] = {190, 7, 61, 121, 71, 246, 69, 55, 168, 188, 89, 243, 191, 25, 72, 123, 9, 145, 14, 247,
1, 238, 44, 78, 143, 62, 224, 126, 118, 114, 68, 163, 52, 194, 217, 147, 204, 169, 37, 130,
113, 102, 73, 181};
static const uint8_t byRSExp46[] = {112, 94, 88, 112, 253, 224, 202, 115, 187, 99, 89, 5, 54, 113, 129, 44, 58, 16, 135, 216,
169, 211, 36, 1, 4, 96, 60, 241, 73, 104, 234, 8, 249, 245, 119, 174, 52, 25, 157, 224,
43, 202, 223, 19, 82, 15};
static const uint8_t byRSExp48[] = {228, 25, 196, 130, 211, 146, 60, 24, 251, 90, 39, 102, 240, 61, 178, 63, 46, 123, 115, 18,
221, 111, 135, 160, 182, 205, 107, 206, 95, 150, 120, 184, 91, 21, 247, 156, 140, 238, 191, 11,
94, 227, 84, 50, 163, 39, 34, 108};
static const uint8_t byRSExp50[] = {232, 125, 157, 161, 164, 9, 118, 46, 209, 99, 203, 193, 35, 3, 209, 111, 195, 242, 203, 225,
46, 13, 32, 160, 126, 209, 130, 160, 242, 215, 242, 75, 77, 42, 189, 32, 113, 65, 124, 69,
228, 114, 235, 175, 124, 170, 215, 232, 133, 205};
static const uint8_t byRSExp52[] = {116, 50, 86, 186, 50, 220, 251, 89, 192, 46, 86, 127, 124, 19, 184, 233, 151, 215, 22, 14,
59, 145, 37, 242, 203, 134, 254, 89, 190, 94, 59, 65, 124, 113, 100, 233, 235, 121, 22, 76,
86, 97, 39, 242, 200, 220, 101, 33, 239, 254, 116, 51};
static const uint8_t byRSExp54[] = {183, 26, 201, 87, 210, 221, 113, 21, 46, 65, 45, 50, 238, 184, 249, 225, 102, 58, 209, 218,
109, 165, 26, 95, 184, 192, 52, 245, 35, 254, 238, 175, 172, 79, 123, 25, 122, 43, 120, 108,
215, 80, 128, 201, 235, 8, 153, 59, 101, 31, 198, 76, 31, 156};
static const uint8_t byRSExp56[] = {106, 120, 107, 157, 164, 216, 112, 116, 2, 91, 248, 163, 36, 201, 202, 229, 6, 144, 254, 155,
135, 208, 170, 209, 12, 139, 127, 142, 182, 249, 177, 174, 190, 28, 10, 85, 239, 184, 101, 124,
152, 206, 96, 23, 163, 61, 27, 196, 247, 151, 154, 202, 207, 20, 61, 10};
static const uint8_t byRSExp58[] = { 82, 116, 26, 247, 66, 27, 62, 107, 252, 182, 200, 185, 235, 55, 251, 242, 210, 144, 154, 237,
176, 141, 192, 248, 152, 249, 206, 85, 253, 142, 65, 165, 125, 23, 24, 30, 122, 240, 214, 6,
129, 218, 29, 145, 127, 134, 206, 245, 117, 29, 41, 63, 159, 142, 233, 125, 148, 123};
static const uint8_t byRSExp60[] = {107, 140, 26, 12, 9, 141, 243, 197, 226, 197, 219, 45, 211, 101, 219, 120, 28, 181, 127, 6,
100, 247, 2, 205, 198, 57, 115, 219, 101, 109, 160, 82, 37, 38, 238, 49, 160, 209, 121, 86,
11, 124, 30, 181, 84, 25, 194, 87, 65, 102, 190, 220, 70, 27, 209, 16, 89, 7, 33, 240};
static const uint8_t byRSExp62[] = { 65, 202, 113, 98, 71, 223, 248, 118, 214, 94, 0, 122, 37, 23, 2, 228, 58, 121, 7, 105,
135, 78, 243, 118, 70, 76, 223, 89, 72, 50, 70, 111, 194, 17, 212, 126, 181, 35, 221, 117,
235, 11, 229, 149, 147, 123, 213, 40, 115, 6, 200, 100, 26, 246, 182, 218, 127, 215, 36, 186,
110, 106};
static const uint8_t byRSExp64[] = { 45, 51, 175, 9, 7, 158, 159, 49, 68, 119, 92, 123, 177, 204, 187, 254, 200, 78, 141, 149,
119, 26, 127, 53, 160, 93, 199, 212, 29, 24, 145, 156, 208, 150, 218, 209, 4, 216, 91, 47,
184, 146, 47, 140, 195, 195, 125, 242, 238, 63, 99, 108, 140, 230, 242, 31, 204, 11, 178, 243,
217, 156, 213, 231};
static const uint8_t byRSExp66[] = { 5, 118, 222, 180, 136, 136, 162, 51, 46, 117, 13, 215, 81, 17, 139, 247, 197, 171, 95, 173,
65, 137, 178, 68, 111, 95, 101, 41, 72, 214, 169, 197, 95, 7, 44, 154, 77, 111, 236, 40,
121, 143, 63, 87, 80, 253, 240, 126, 217, 77, 34, 232, 106, 50, 168, 82, 76, 146, 67, 106,
171, 25, 132, 93, 45, 105};
static const uint8_t byRSExp68[] = {247, 159, 223, 33, 224, 93, 77, 70, 90, 160, 32, 254, 43, 150, 84, 101, 190, 205, 133, 52,
60, 202, 165, 220, 203, 151, 93, 84, 15, 84, 253, 173, 160, 89, 227, 52, 199, 97, 95, 231,
52, 177, 41, 125, 137, 241, 166, 225, 118, 2, 54, 32, 82, 215, 175, 198, 43, 238, 235, 27,
101, 184, 127, 3, 5, 8, 163, 238};
static const uint8_t* byRSExp[] = {NULL, NULL, NULL, NULL, NULL, NULL, NULL, byRSExp7, NULL, NULL,
byRSExp10, NULL, NULL, byRSExp13, NULL, byRSExp15, byRSExp16, byRSExp17, byRSExp18, NULL,
byRSExp20, NULL, byRSExp22, NULL, byRSExp24, NULL, byRSExp26, NULL, byRSExp28, NULL,
byRSExp30, NULL, byRSExp32, NULL, byRSExp34, NULL, byRSExp36, NULL, byRSExp38, NULL,
byRSExp40, NULL, byRSExp42, NULL, byRSExp44, NULL, byRSExp46, NULL, byRSExp48, NULL,
byRSExp50, NULL, byRSExp52, NULL, byRSExp54, NULL, byRSExp56, NULL, byRSExp58, NULL,
byRSExp60, NULL, byRSExp62, NULL, byRSExp64, NULL, byRSExp66, NULL, byRSExp68};
static const int nIndicatorLenNumeral[] = {10, 12, 14};
static const int nIndicatorLenAlphabet[] = { 9, 11, 13};
static const int nIndicatorLen8Bit[] = { 8, 16, 16};
static const int nIndicatorLenKanji[] = { 8, 10, 12};
// clang-format on
typedef enum {
UTF8_ACCEPT = 0,
UTF8_REJECT = 1,
} UTF8_Validity;
static uint32_t updatestate(uint32_t* state, uint32_t byte)
{
static const uint8_t utf8d[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5f
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7f
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9,
9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9f
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // a0..bf
8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // c0..df
0xa, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3,
0x3, 0x3, 0x4, 0x3, 0x3, // e0..ef
0xb, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8,
0x8, 0x8, 0x8, 0x8, 0x8 // f0..ff
};
static const uint8_t utf8d_transition[] = {
0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4,
0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2
1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4
1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6
1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1,
1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, // s7..s8
};
uint32_t type = utf8d[byte];
*state = utf8d_transition[16 * *state + type];
return *state;
}
// credit: Travis Downs
int is_utf8(const char* c, size_t len)
{
size_t half = len / 2;
while ((uint8_t)c[half] <= 0xBF && (uint8_t)c[half] > 0x80 && half > 0) {
half--;
}
uint32_t s1 = 0, s2 = 0;
for (size_t i = 0, j = half; i < half; i++, j++) {
updatestate(&s1, (uint8_t)c[i]);
updatestate(&s2, (uint8_t)c[j]);
}
for (size_t j = half * 2; j < len; j++) {
updatestate(&s2, (uint8_t)c[j]);
}
return (s1 != UTF8_REJECT) && (s2 != UTF8_REJECT);
}
static int IsNumeralData(uint8_t c)
{
if (c >= '0' && c <= '9') {
return 1;
}
return 0;
}
/////////////////////////////////////////////////////////////////////////////
// APPLICATIONS: Check the appropriate alphanumeric mode
// Argument: research letter
// Returns: = true if applicable
static int IsAlphabetData(uint8_t c)
{
if (c >= '0' && c <= '9') {
return 1;
}
if (c >= 'A' && c <= 'Z') {
return 1;
}
if (c == ' ' || c == '$' || c == '%' || c == '*' || c == '+' || c == '-' || c == '.' || c == '/' || c == ':') {
return 1;
}
return 0;
}
/////////////////////////////////////////////////////////////////////////////
// APPLICATIONS: Check the appropriate kanji mode
// Arguments: The character study (16-bit characters)
// Returns: = true if applicable
// Remarks: S-JIS is excluded since the EBBFh
inline static int IsKanjiData(uint8_t c1, uint8_t c2)
{
uint16_t val = c1 << 8 | c2;
return !(val < 0x8140 || (val > 0x9ffc && val < 0xe040) || val > 0xebbf);
}
/////////////////////////////////////////////////////////////////////////////
// APPLICATIONS: Binary character alphanumeric mode
// Number of arguments: the target character
// Returns: binary value
static uint8_t AlphabetToBinary(uint8_t c)
{
if (c >= '0' && c <= '9') {
return (uint8_t)(c - '0');
}
if (c >= 'A' && c <= 'Z') {
return (uint8_t)(c - 'A' + 10);
}
if (c == ' ') {
return 36;
}
if (c == '$') {
return 37;
}
if (c == '%') {
return 38;
}
if (c == '*') {
return 39;
}
if (c == '+') {
return 40;
}
if (c == '-') {
return 41;
}
if (c == '.') {
return 42;
}
if (c == '/') {
return 43;
}
return 44; // c == ':'
}
/////////////////////////////////////////////////////////////////////////////
// APPLICATIONS: Binary Kanji character mode
// Number of arguments: the target character
// Returns: binary value
static uint16_t KanjiToBinaly(uint16_t wc)
{
if (wc >= 0x8140 && wc <= 0x9ffc) {
wc -= 0x8140;
} else { // (wc >= 0xe040 && wc <= 0xebbf)
wc -= 0xc140;
}
return (uint16_t)(((wc >> 8) * 0xc0) + (wc & 0x00ff));
}
static int SetBitStream(int nIndex, uint16_t wData, int ncData, uint8_t m_byDataCodeWord[MAX_DATACODEWORD])
{
int i;
if (nIndex == -1 || nIndex + ncData > MAX_DATACODEWORD * 8) {
return -1;
}
for (i = 0; i < ncData; ++i) {
if (wData & (1 << (ncData - i - 1))) {
m_byDataCodeWord[(nIndex + i) / 8] |= 1 << (7 - ((nIndex + i) % 8));
}
}
return nIndex + ncData;
}
static int GetBitLength(uint8_t nMode, int ncData, int nVerGroup)
{
int ncBits = 0;
switch (nMode) {
case QR_MODE_NUMERAL:
ncBits = 4 + nIndicatorLenNumeral[nVerGroup] + (10 * (ncData / 3));
switch (ncData % 3) {
case 1:
ncBits += 4;
break;
case 2:
ncBits += 7;
break;
default: // case 0:
break;
}
break;
case QR_MODE_ALPHABET:
ncBits = 4 + nIndicatorLenAlphabet[nVerGroup] + (11 * (ncData / 2)) + (6 * (ncData % 2));
break;
case QR_MODE_8BIT:
ncBits = 4 + nIndicatorLen8Bit[nVerGroup] + (8 * ncData);
break;
default: // case QR_MODE_KANJI:
ncBits = 4 + nIndicatorLenKanji[nVerGroup] + (13 * (ncData / 2));
break;
}
return ncBits;
}
static int EncodeSourceData(const char* input_data, int ncLength, int nVerGroup, int16_t m_nBlockLength[MAX_DATACODEWORD], uint8_t m_byBlockMode[MAX_DATACODEWORD], uint8_t m_byDataCodeWord[MAX_DATACODEWORD], QR_ENCODING_CONTEXT* ctx)
{
ZeroMemory(m_nBlockLength, MAX_DATACODEWORD * sizeof(m_nBlockLength[0]));
int i, j;
int validUTF8 = is_utf8(input_data, ncLength);
// Investigate whether continuing characters (bytes) which mode is what
for (ctx->ncDataBlock = i = 0; i < ncLength; ++i) {
QR_DataMode byMode;
if (!validUTF8 && ncLength % 2 == 0 && i % 2 == 0 && i < ncLength - 1 && IsKanjiData(input_data[i], input_data[i + 1])) {
byMode = QR_MODE_KANJI;
} else if (IsNumeralData(input_data[i])) {
byMode = QR_MODE_NUMERAL;
} else if (IsAlphabetData(input_data[i])) {
byMode = QR_MODE_ALPHABET;
} else {
byMode = QR_MODE_8BIT;
}
if (i == 0) {
m_byBlockMode[0] = byMode;
}
if (m_byBlockMode[ctx->ncDataBlock] != byMode) {
m_byBlockMode[++ctx->ncDataBlock] = byMode;
}
++m_nBlockLength[ctx->ncDataBlock];
if (byMode == QR_MODE_KANJI) {
//Kanji characters rather than the number recorded in
++m_nBlockLength[ctx->ncDataBlock];
++i;
}
}
++ctx->ncDataBlock;
/////////////////////////////////////////////////////////////////////////
// Linked by a sequence of conditional block alphanumeric mode and numeric mode block adjacent
int ncSrcBits, ncDstBits; //The bit length of the block mode if you have over the original bit length and a single alphanumeric
int nBlock = 0;
while (nBlock < ctx->ncDataBlock - 1) {
int ncJoinFront, ncJoinBehind; //Bit length when combined with 8-bit byte block mode before and after
int nJoinPosition = 0; // Block the binding of 8-bit byte mode: combined with the previous -1 = 0 = do not bind, bind behind a =
// Sort of - "digit alphanumeric" - "or alphanumeric numbers"
if ((m_byBlockMode[nBlock] == QR_MODE_NUMERAL && m_byBlockMode[nBlock + 1] == QR_MODE_ALPHABET) || (m_byBlockMode[nBlock] == QR_MODE_ALPHABET && m_byBlockMode[nBlock + 1] == QR_MODE_NUMERAL)) {
// If you compare the bit length of alphanumeric characters and a single block mode over the original bit length
ncSrcBits = GetBitLength(m_byBlockMode[nBlock], m_nBlockLength[nBlock], nVerGroup) + GetBitLength(m_byBlockMode[nBlock + 1], m_nBlockLength[nBlock + 1], nVerGroup);
ncDstBits = GetBitLength(QR_MODE_ALPHABET, m_nBlockLength[nBlock] + m_nBlockLength[nBlock + 1], nVerGroup);
if (ncSrcBits > ncDstBits) {
// If there is an 8-bit byte block mode back and forth, check whether they favor the binding of
if (nBlock >= 1 && m_byBlockMode[nBlock - 1] == QR_MODE_8BIT) {
// There are 8-bit byte block mode before
ncJoinFront = GetBitLength(QR_MODE_8BIT, m_nBlockLength[nBlock - 1] + m_nBlockLength[nBlock], nVerGroup) + GetBitLength(m_byBlockMode[nBlock + 1], m_nBlockLength[nBlock + 1], nVerGroup);
if (ncJoinFront > ncDstBits + GetBitLength(QR_MODE_8BIT, m_nBlockLength[nBlock - 1], nVerGroup)) {
ncJoinFront = 0; //8-bit byte and block mode does not bind
}
} else {
ncJoinFront = 0;
}
if (nBlock < ctx->ncDataBlock - 2 && m_byBlockMode[nBlock + 2] == QR_MODE_8BIT) {
// There are 8-bit byte mode block behind
ncJoinBehind = GetBitLength(m_byBlockMode[nBlock], m_nBlockLength[nBlock], nVerGroup) + GetBitLength(QR_MODE_8BIT, m_nBlockLength[nBlock + 1] + m_nBlockLength[nBlock + 2], nVerGroup);
if (ncJoinBehind > ncDstBits + GetBitLength(QR_MODE_8BIT, m_nBlockLength[nBlock + 2], nVerGroup)) {
ncJoinBehind = 0; //8-bit byte and block mode does not bind
}
} else {
ncJoinBehind = 0;
}
if (ncJoinFront != 0 && ncJoinBehind != 0) {
// If there is a 8-bit byte block mode has priority both before and after the way the data length is shorter
nJoinPosition = (ncJoinFront < ncJoinBehind) ? -1 : 1;
} else {
nJoinPosition = (ncJoinFront != 0) ? -1 : ((ncJoinBehind != 0) ? 1 : 0);
}
if (nJoinPosition != 0) {
// Block the binding of 8-bit byte mode
if (nJoinPosition == -1) {
m_nBlockLength[nBlock - 1] += m_nBlockLength[nBlock];
// The subsequent shift
for (i = nBlock; i < ctx->ncDataBlock - 1; ++i) {
m_byBlockMode[i] = m_byBlockMode[i + 1];
m_nBlockLength[i] = m_nBlockLength[i + 1];
}
} else {
m_byBlockMode[nBlock + 1] = QR_MODE_8BIT;