msb-public
/
QR-Code-generator
mirror of https://github.com/nayuki/QR-Code-generator
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Simplified code in all language versions of the library (C, C++, Java, JavaScript, Python) and reduced table size, without changing behavior.

Browse Source
pull/11/head
Project Nayuki 8 years ago
parent 26b4cf557c
commit f020833cd4
6 changed files with 42 additions and 55 deletions
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20
c/qrcodegen.c
Unescape View File

@ -61,13 +61,13 @@ static uint8_t finiteFieldMultiply(uint8_t x, uint8_t y);
static const char *ALPHANUMERIC_CHARSET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:"; static const char *ALPHANUMERIC_CHARSET = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ $%*+-./:";
static const int16_t NUM_ERROR_CORRECTION_CODEWORDS[4][41] = { static const int8_t ECC_CODEWORDS_PER_BLOCK[4][41] = {
// Version: (note that index 0 is for padding, and is set to an illegal value) // Version: (note that index 0 is for padding, and is set to an illegal value)
//0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level //0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level
{-1, 7, 10, 15, 20, 26, 36, 40, 48, 60, 72, 80, 96, 104, 120, 132, 144, 168, 180, 196, 224, 224, 252, 270, 300, 312, 336, 360, 390, 420, 450, 480, 510, 540, 570, 570, 600, 630, 660, 720, 750}, // Low {-1, 7, 10, 15, 20, 26, 18, 20, 24, 30, 18, 20, 24, 26, 30, 22, 24, 28, 30, 28, 28, 28, 28, 30, 30, 26, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Low
{-1, 10, 16, 26, 36, 48, 64, 72, 88, 110, 130, 150, 176, 198, 216, 240, 280, 308, 338, 364, 416, 442, 476, 504, 560, 588, 644, 700, 728, 784, 812, 868, 924, 980, 1036, 1064, 1120, 1204, 1260, 1316, 1372}, // Medium {-1, 10, 16, 26, 18, 24, 16, 18, 22, 22, 26, 30, 22, 22, 24, 24, 28, 28, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28}, // Medium
{-1, 13, 22, 36, 52, 72, 96, 108, 132, 160, 192, 224, 260, 288, 320, 360, 408, 448, 504, 546, 600, 644, 690, 750, 810, 870, 952, 1020, 1050, 1140, 1200, 1290, 1350, 1440, 1530, 1590, 1680, 1770, 1860, 1950, 2040}, // Quartile {-1, 13, 22, 18, 26, 18, 24, 18, 22, 20, 24, 28, 26, 24, 20, 30, 24, 28, 28, 26, 30, 28, 30, 30, 30, 30, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Quartile
{-1, 17, 28, 44, 64, 88, 112, 130, 156, 192, 224, 264, 308, 352, 384, 432, 480, 532, 588, 650, 700, 750, 816, 900, 960, 1050, 1110, 1200, 1260, 1350, 1440, 1530, 1620, 1710, 1800, 1890, 1980, 2100, 2220, 2310, 2430}, // High {-1, 17, 28, 22, 16, 22, 28, 26, 26, 24, 28, 24, 28, 22, 24, 24, 30, 28, 28, 26, 28, 30, 24, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // High
}; };
const int8_t NUM_ERROR_CORRECTION_BLOCKS[4][41] = { const int8_t NUM_ERROR_CORRECTION_BLOCKS[4][41] = {
@ -379,7 +379,7 @@ static void appendBitsToBuffer(uint16_t val, int numBits, uint8_t buffer[], int
// for the given version number and error correction level. The result is in the range [9, 2956]. // for the given version number and error correction level. The result is in the range [9, 2956].
static int getNumDataCodewords(int version, enum qrcodegen_Ecc ecl) { static int getNumDataCodewords(int version, enum qrcodegen_Ecc ecl) {
assert(0 <= (int)ecl && (int)ecl < 4 && qrcodegen_VERSION_MIN <= version && version <= qrcodegen_VERSION_MAX); assert(0 <= (int)ecl && (int)ecl < 4 && qrcodegen_VERSION_MIN <= version && version <= qrcodegen_VERSION_MAX);
return getNumRawDataModules(version) / 8 - NUM_ERROR_CORRECTION_CODEWORDS[(int)ecl][version]; return getNumRawDataModules(version) / 8 - (ECC_CODEWORDS_PER_BLOCK[(int)ecl][version] * NUM_ERROR_CORRECTION_BLOCKS[(int)ecl][version]);
} }
@ -607,11 +607,9 @@ static void appendErrorCorrection(uint8_t data[], int version, enum qrcodegen_Ec
// Calculate parameter numbers // Calculate parameter numbers
assert(0 <= (int)ecl && (int)ecl < 4 && qrcodegen_VERSION_MIN <= version && version <= qrcodegen_VERSION_MAX); assert(0 <= (int)ecl && (int)ecl < 4 && qrcodegen_VERSION_MIN <= version && version <= qrcodegen_VERSION_MAX);
int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[(int)ecl][version]; int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[(int)ecl][version];
int totalEcc = NUM_ERROR_CORRECTION_CODEWORDS[(int)ecl][version]; int blockEccLen = ECC_CODEWORDS_PER_BLOCK[(int)ecl][version];
assert(totalEcc % numBlocks == 0);
int blockEccLen = totalEcc / numBlocks;
int rawCodewords = getNumRawDataModules(version) / 8; int rawCodewords = getNumRawDataModules(version) / 8;
int dataLen = rawCodewords - totalEcc; int dataLen = rawCodewords - blockEccLen * numBlocks;
int numShortBlocks = numBlocks - rawCodewords % numBlocks; int numShortBlocks = numBlocks - rawCodewords % numBlocks;
int shortBlockDataLen = rawCodewords / numBlocks - blockEccLen; int shortBlockDataLen = rawCodewords / numBlocks - blockEccLen;

19
cpp/QrCode.cpp
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@ -303,10 +303,7 @@ std::vector<uint8_t> qrcodegen::QrCode::appendErrorCorrection(const std::vector<
// Calculate parameter numbers // Calculate parameter numbers
int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[errorCorrectionLevel.ordinal][version]; int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[errorCorrectionLevel.ordinal][version];
int totalEcc = NUM_ERROR_CORRECTION_CODEWORDS[errorCorrectionLevel.ordinal][version]; int blockEccLen = ECC_CODEWORDS_PER_BLOCK[errorCorrectionLevel.ordinal][version];
if (totalEcc % numBlocks != 0)
throw "Assertion error";
int blockEccLen = totalEcc / numBlocks;
int numShortBlocks = numBlocks - getNumRawDataModules(version) / 8 % numBlocks; int numShortBlocks = numBlocks - getNumRawDataModules(version) / 8 % numBlocks;
int shortBlockLen = getNumRawDataModules(version) / 8 / numBlocks; int shortBlockLen = getNumRawDataModules(version) / 8 / numBlocks;
@ -532,7 +529,7 @@ int qrcodegen::QrCode::getNumRawDataModules(int ver) {
int qrcodegen::QrCode::getNumDataCodewords(int ver, const Ecc &ecl) { int qrcodegen::QrCode::getNumDataCodewords(int ver, const Ecc &ecl) {
if (ver < 1 || ver > 40) if (ver < 1 || ver > 40)
throw "Version number out of range"; throw "Version number out of range";
return getNumRawDataModules(ver) / 8 - NUM_ERROR_CORRECTION_CODEWORDS[ecl.ordinal][ver]; return getNumRawDataModules(ver) / 8 - ECC_CODEWORDS_PER_BLOCK[ecl.ordinal][ver] * NUM_ERROR_CORRECTION_BLOCKS[ecl.ordinal][ver];
} }
@ -544,13 +541,13 @@ const int qrcodegen::QrCode::PENALTY_N3 = 40;
const int qrcodegen::QrCode::PENALTY_N4 = 10; const int qrcodegen::QrCode::PENALTY_N4 = 10;
const int16_t qrcodegen::QrCode::NUM_ERROR_CORRECTION_CODEWORDS[4][41] = { const int8_t qrcodegen::QrCode::ECC_CODEWORDS_PER_BLOCK[4][41] = {
// Version: (note that index 0 is for padding, and is set to an illegal value) // Version: (note that index 0 is for padding, and is set to an illegal value)
//0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level //0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level
{-1, 7, 10, 15, 20, 26, 36, 40, 48, 60, 72, 80, 96, 104, 120, 132, 144, 168, 180, 196, 224, 224, 252, 270, 300, 312, 336, 360, 390, 420, 450, 480, 510, 540, 570, 570, 600, 630, 660, 720, 750}, // Low {-1, 7, 10, 15, 20, 26, 18, 20, 24, 30, 18, 20, 24, 26, 30, 22, 24, 28, 30, 28, 28, 28, 28, 30, 30, 26, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Low
{-1, 10, 16, 26, 36, 48, 64, 72, 88, 110, 130, 150, 176, 198, 216, 240, 280, 308, 338, 364, 416, 442, 476, 504, 560, 588, 644, 700, 728, 784, 812, 868, 924, 980, 1036, 1064, 1120, 1204, 1260, 1316, 1372}, // Medium {-1, 10, 16, 26, 18, 24, 16, 18, 22, 22, 26, 30, 22, 22, 24, 24, 28, 28, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28}, // Medium
{-1, 13, 22, 36, 52, 72, 96, 108, 132, 160, 192, 224, 260, 288, 320, 360, 408, 448, 504, 546, 600, 644, 690, 750, 810, 870, 952, 1020, 1050, 1140, 1200, 1290, 1350, 1440, 1530, 1590, 1680, 1770, 1860, 1950, 2040}, // Quartile {-1, 13, 22, 18, 26, 18, 24, 18, 22, 20, 24, 28, 26, 24, 20, 30, 24, 28, 28, 26, 30, 28, 30, 30, 30, 30, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Quartile
{-1, 17, 28, 44, 64, 88, 112, 130, 156, 192, 224, 264, 308, 352, 384, 432, 480, 532, 588, 650, 700, 750, 816, 900, 960, 1050, 1110, 1200, 1260, 1350, 1440, 1530, 1620, 1710, 1800, 1890, 1980, 2100, 2220, 2310, 2430}, // High {-1, 17, 28, 22, 16, 22, 28, 26, 26, 24, 28, 24, 28, 22, 24, 24, 30, 28, 28, 26, 28, 30, 24, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // High
}; };
const int8_t qrcodegen::QrCode::NUM_ERROR_CORRECTION_BLOCKS[4][41] = { const int8_t qrcodegen::QrCode::NUM_ERROR_CORRECTION_BLOCKS[4][41] = {

2
cpp/QrCode.hpp
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@ -243,7 +243,7 @@ class QrCode final {
private: static const int PENALTY_N3; private: static const int PENALTY_N3;
private: static const int PENALTY_N4; private: static const int PENALTY_N4;
private: static const int16_t NUM_ERROR_CORRECTION_CODEWORDS[4][41]; private: static const int8_t ECC_CODEWORDS_PER_BLOCK[4][41];
private: static const int8_t NUM_ERROR_CORRECTION_BLOCKS[4][41]; private: static const int8_t NUM_ERROR_CORRECTION_BLOCKS[4][41];

19
java/io/nayuki/qrcodegen/QrCode.java
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@ -458,10 +458,7 @@ public final class QrCode {
// Calculate parameter numbers // Calculate parameter numbers
int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[errorCorrectionLevel.ordinal()][version]; int numBlocks = NUM_ERROR_CORRECTION_BLOCKS[errorCorrectionLevel.ordinal()][version];
int totalEcc = NUM_ERROR_CORRECTION_CODEWORDS[errorCorrectionLevel.ordinal()][version]; int blockEccLen = ECC_CODEWORDS_PER_BLOCK[errorCorrectionLevel.ordinal()][version];
if (totalEcc % numBlocks != 0)
throw new AssertionError();
int blockEccLen = totalEcc / numBlocks;
int numShortBlocks = numBlocks - getNumRawDataModules(version) / 8 % numBlocks; int numShortBlocks = numBlocks - getNumRawDataModules(version) / 8 % numBlocks;
int shortBlockLen = getNumRawDataModules(version) / 8 / numBlocks; int shortBlockLen = getNumRawDataModules(version) / 8 / numBlocks;
@ -717,7 +714,7 @@ public final class QrCode {
static int getNumDataCodewords(int ver, Ecc ecl) { static int getNumDataCodewords(int ver, Ecc ecl) {
if (ver < 1 || ver > 40) if (ver < 1 || ver > 40)
throw new IllegalArgumentException("Version number out of range"); throw new IllegalArgumentException("Version number out of range");
return getNumRawDataModules(ver) / 8 - NUM_ERROR_CORRECTION_CODEWORDS[ecl.ordinal()][ver]; return getNumRawDataModules(ver) / 8 - ECC_CODEWORDS_PER_BLOCK[ecl.ordinal()][ver] * NUM_ERROR_CORRECTION_BLOCKS[ecl.ordinal()][ver];
} }
@ -730,13 +727,13 @@ public final class QrCode {
private static final int PENALTY_N4 = 10; private static final int PENALTY_N4 = 10;
private static final short[][] NUM_ERROR_CORRECTION_CODEWORDS = { private static final byte[][] ECC_CODEWORDS_PER_BLOCK = {
// Version: (note that index 0 is for padding, and is set to an illegal value) // Version: (note that index 0 is for padding, and is set to an illegal value)
//0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level //0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level
{-1, 7, 10, 15, 20, 26, 36, 40, 48, 60, 72, 80, 96, 104, 120, 132, 144, 168, 180, 196, 224, 224, 252, 270, 300, 312, 336, 360, 390, 420, 450, 480, 510, 540, 570, 570, 600, 630, 660, 720, 750}, // Low {-1, 7, 10, 15, 20, 26, 18, 20, 24, 30, 18, 20, 24, 26, 30, 22, 24, 28, 30, 28, 28, 28, 28, 30, 30, 26, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Low
{-1, 10, 16, 26, 36, 48, 64, 72, 88, 110, 130, 150, 176, 198, 216, 240, 280, 308, 338, 364, 416, 442, 476, 504, 560, 588, 644, 700, 728, 784, 812, 868, 924, 980, 1036, 1064, 1120, 1204, 1260, 1316, 1372}, // Medium {-1, 10, 16, 26, 18, 24, 16, 18, 22, 22, 26, 30, 22, 22, 24, 24, 28, 28, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28}, // Medium
{-1, 13, 22, 36, 52, 72, 96, 108, 132, 160, 192, 224, 260, 288, 320, 360, 408, 448, 504, 546, 600, 644, 690, 750, 810, 870, 952, 1020, 1050, 1140, 1200, 1290, 1350, 1440, 1530, 1590, 1680, 1770, 1860, 1950, 2040}, // Quartile {-1, 13, 22, 18, 26, 18, 24, 18, 22, 20, 24, 28, 26, 24, 20, 30, 24, 28, 28, 26, 30, 28, 30, 30, 30, 30, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // Quartile
{-1, 17, 28, 44, 64, 88, 112, 130, 156, 192, 224, 264, 308, 352, 384, 432, 480, 532, 588, 650, 700, 750, 816, 900, 960, 1050, 1110, 1200, 1260, 1350, 1440, 1530, 1620, 1710, 1800, 1890, 1980, 2100, 2220, 2310, 2430}, // High {-1, 17, 28, 22, 16, 22, 28, 26, 26, 24, 28, 24, 28, 22, 24, 24, 30, 28, 28, 26, 28, 30, 24, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30}, // High
}; };
private static final byte[][] NUM_ERROR_CORRECTION_BLOCKS = { private static final byte[][] NUM_ERROR_CORRECTION_BLOCKS = {

19
javascript/qrcodegen.js
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@ -358,10 +358,7 @@ var qrcodegen = new function() {
// Calculate parameter numbers // Calculate parameter numbers
var numBlocks = QrCode.NUM_ERROR_CORRECTION_BLOCKS[errCorLvl.ordinal][version]; var numBlocks = QrCode.NUM_ERROR_CORRECTION_BLOCKS[errCorLvl.ordinal][version];
var totalEcc = QrCode.NUM_ERROR_CORRECTION_CODEWORDS[errCorLvl.ordinal][version]; var blockEccLen = QrCode.ECC_CODEWORDS_PER_BLOCK[errCorLvl.ordinal][version];
if (totalEcc % numBlocks != 0)
throw "Assertion error";
var blockEccLen = Math.floor(totalEcc / numBlocks);
var numShortBlocks = numBlocks - Math.floor(QrCode.getNumRawDataModules(version) / 8) % numBlocks; var numShortBlocks = numBlocks - Math.floor(QrCode.getNumRawDataModules(version) / 8) % numBlocks;
var shortBlockLen = Math.floor(QrCode.getNumRawDataModules(version) / (numBlocks * 8)); var shortBlockLen = Math.floor(QrCode.getNumRawDataModules(version) / (numBlocks * 8));
@ -669,7 +666,7 @@ var qrcodegen = new function() {
QrCode.getNumDataCodewords = function(ver, ecl) { QrCode.getNumDataCodewords = function(ver, ecl) {
if (ver < 1 || ver > 40) if (ver < 1 || ver > 40)
throw "Version number out of range"; throw "Version number out of range";
return Math.floor(QrCode.getNumRawDataModules(ver) / 8) - QrCode.NUM_ERROR_CORRECTION_CODEWORDS[ecl.ordinal][ver]; return Math.floor(QrCode.getNumRawDataModules(ver) / 8) - QrCode.ECC_CODEWORDS_PER_BLOCK[ecl.ordinal][ver] * QrCode.NUM_ERROR_CORRECTION_BLOCKS[ecl.ordinal][ver];
}; };
@ -681,13 +678,13 @@ var qrcodegen = new function() {
QrCode.PENALTY_N3 = 40; QrCode.PENALTY_N3 = 40;
QrCode.PENALTY_N4 = 10; QrCode.PENALTY_N4 = 10;
QrCode.NUM_ERROR_CORRECTION_CODEWORDS = [ QrCode.ECC_CODEWORDS_PER_BLOCK = [
// Version: (note that index 0 is for padding, and is set to an illegal value) // Version: (note that index 0 is for padding, and is set to an illegal value)
// 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level // 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level
[null, 7, 10, 15, 20, 26, 36, 40, 48, 60, 72, 80, 96, 104, 120, 132, 144, 168, 180, 196, 224, 224, 252, 270, 300, 312, 336, 360, 390, 420, 450, 480, 510, 540, 570, 570, 600, 630, 660, 720, 750], // Low [null, 7, 10, 15, 20, 26, 18, 20, 24, 30, 18, 20, 24, 26, 30, 22, 24, 28, 30, 28, 28, 28, 28, 30, 30, 26, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30], // Low
[null, 10, 16, 26, 36, 48, 64, 72, 88, 110, 130, 150, 176, 198, 216, 240, 280, 308, 338, 364, 416, 442, 476, 504, 560, 588, 644, 700, 728, 784, 812, 868, 924, 980, 1036, 1064, 1120, 1204, 1260, 1316, 1372], // Medium [null, 10, 16, 26, 18, 24, 16, 18, 22, 22, 26, 30, 22, 22, 24, 24, 28, 28, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28], // Medium
[null, 13, 22, 36, 52, 72, 96, 108, 132, 160, 192, 224, 260, 288, 320, 360, 408, 448, 504, 546, 600, 644, 690, 750, 810, 870, 952, 1020, 1050, 1140, 1200, 1290, 1350, 1440, 1530, 1590, 1680, 1770, 1860, 1950, 2040], // Quartile [null, 13, 22, 18, 26, 18, 24, 18, 22, 20, 24, 28, 26, 24, 20, 30, 24, 28, 28, 26, 30, 28, 30, 30, 30, 30, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30], // Quartile
[null, 17, 28, 44, 64, 88, 112, 130, 156, 192, 224, 264, 308, 352, 384, 432, 480, 532, 588, 650, 700, 750, 816, 900, 960, 1050, 1110, 1200, 1260, 1350, 1440, 1530, 1620, 1710, 1800, 1890, 1980, 2100, 2220, 2310, 2430], // High [null, 17, 28, 22, 16, 22, 28, 26, 26, 24, 28, 24, 28, 22, 24, 24, 30, 28, 28, 26, 28, 30, 24, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30], // High
]; ];
QrCode.NUM_ERROR_CORRECTION_BLOCKS = [ QrCode.NUM_ERROR_CORRECTION_BLOCKS = [

18
python/qrcodegen.py
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@ -362,9 +362,7 @@ class QrCode(object):
# Calculate parameter numbers # Calculate parameter numbers
numblocks = QrCode._NUM_ERROR_CORRECTION_BLOCKS[self._errcorlvl.ordinal][version] numblocks = QrCode._NUM_ERROR_CORRECTION_BLOCKS[self._errcorlvl.ordinal][version]
totalecc = QrCode._NUM_ERROR_CORRECTION_CODEWORDS[self._errcorlvl.ordinal][version] blockecclen = QrCode._ECC_CODEWORDS_PER_BLOCK[self._errcorlvl.ordinal][version]
assert totalecc % numblocks == 0
blockecclen = totalecc // numblocks
numshortblocks = numblocks - QrCode._get_num_raw_data_modules(version) // 8 % numblocks numshortblocks = numblocks - QrCode._get_num_raw_data_modules(version) // 8 % numblocks
shortblocklen = self._get_num_raw_data_modules(version) // 8 // numblocks shortblocklen = self._get_num_raw_data_modules(version) // 8 // numblocks
@ -545,7 +543,7 @@ class QrCode(object):
This stateless pure function could be implemented as a (40*4)-cell lookup table.""" This stateless pure function could be implemented as a (40*4)-cell lookup table."""
if not 1 <= ver <= 40: if not 1 <= ver <= 40:
raise ValueError("Version number out of range") raise ValueError("Version number out of range")
return QrCode._get_num_raw_data_modules(ver) // 8 - QrCode._NUM_ERROR_CORRECTION_CODEWORDS[ecl.ordinal][ver] return QrCode._get_num_raw_data_modules(ver) // 8 - QrCode._ECC_CODEWORDS_PER_BLOCK[ecl.ordinal][ver] * QrCode._NUM_ERROR_CORRECTION_BLOCKS[ecl.ordinal][ver]
# ---- Private tables of constants ---- # ---- Private tables of constants ----
@ -556,13 +554,13 @@ class QrCode(object):
_PENALTY_N3 = 40 _PENALTY_N3 = 40
_PENALTY_N4 = 10 _PENALTY_N4 = 10
_NUM_ERROR_CORRECTION_CODEWORDS = ( _ECC_CODEWORDS_PER_BLOCK = (
# Version: (note that index 0 is for padding, and is set to an illegal value) # Version: (note that index 0 is for padding, and is set to an illegal value)
# 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level # 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40 Error correction level
(None, 7, 10, 15, 20, 26, 36, 40, 48, 60, 72, 80, 96, 104, 120, 132, 144, 168, 180, 196, 224, 224, 252, 270, 300, 312, 336, 360, 390, 420, 450, 480, 510, 540, 570, 570, 600, 630, 660, 720, 750), # Low (None, 7, 10, 15, 20, 26, 18, 20, 24, 30, 18, 20, 24, 26, 30, 22, 24, 28, 30, 28, 28, 28, 28, 30, 30, 26, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30), # Low
(None, 10, 16, 26, 36, 48, 64, 72, 88, 110, 130, 150, 176, 198, 216, 240, 280, 308, 338, 364, 416, 442, 476, 504, 560, 588, 644, 700, 728, 784, 812, 868, 924, 980, 1036, 1064, 1120, 1204, 1260, 1316, 1372), # Medium (None, 10, 16, 26, 18, 24, 16, 18, 22, 22, 26, 30, 22, 22, 24, 24, 28, 28, 26, 26, 26, 26, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28), # Medium
(None, 13, 22, 36, 52, 72, 96, 108, 132, 160, 192, 224, 260, 288, 320, 360, 408, 448, 504, 546, 600, 644, 690, 750, 810, 870, 952, 1020, 1050, 1140, 1200, 1290, 1350, 1440, 1530, 1590, 1680, 1770, 1860, 1950, 2040), # Quartile (None, 13, 22, 18, 26, 18, 24, 18, 22, 20, 24, 28, 26, 24, 20, 30, 24, 28, 28, 26, 30, 28, 30, 30, 30, 30, 28, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30), # Quartile
(None, 17, 28, 44, 64, 88, 112, 130, 156, 192, 224, 264, 308, 352, 384, 432, 480, 532, 588, 650, 700, 750, 816, 900, 960, 1050, 1110, 1200, 1260, 1350, 1440, 1530, 1620, 1710, 1800, 1890, 1980, 2100, 2220, 2310, 2430)) # High (None, 17, 28, 22, 16, 22, 28, 26, 26, 24, 28, 24, 28, 22, 24, 24, 30, 28, 28, 26, 28, 30, 24, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30)) # High
_NUM_ERROR_CORRECTION_BLOCKS = ( _NUM_ERROR_CORRECTION_BLOCKS = (
# Version: (note that index 0 is for padding, and is set to an illegal value) # Version: (note that index 0 is for padding, and is set to an illegal value)

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