mirror of
https://github.com/openharmony/third_party_qrcodegen.git
synced 2026-07-19 20:23:35 -04:00
Reduced redundancy in C++ code by wrapping .cpp source files in namespace{} blocks.
This commit is contained in:
Project Nayuki
+40
-36
@@ -30,31 +30,33 @@
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#include "QrCode.hpp"
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qrcodegen::QrCode::Ecc::Ecc(int ord, int fb) :
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namespace qrcodegen {
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QrCode::Ecc::Ecc(int ord, int fb) :
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ordinal(ord),
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formatBits(fb) {}
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const qrcodegen::QrCode::Ecc qrcodegen::QrCode::Ecc::LOW (0, 1);
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const qrcodegen::QrCode::Ecc qrcodegen::QrCode::Ecc::MEDIUM (1, 0);
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const qrcodegen::QrCode::Ecc qrcodegen::QrCode::Ecc::QUARTILE(2, 3);
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const qrcodegen::QrCode::Ecc qrcodegen::QrCode::Ecc::HIGH (3, 2);
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const QrCode::Ecc QrCode::Ecc::LOW (0, 1);
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const QrCode::Ecc QrCode::Ecc::MEDIUM (1, 0);
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const QrCode::Ecc QrCode::Ecc::QUARTILE(2, 3);
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const QrCode::Ecc QrCode::Ecc::HIGH (3, 2);
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qrcodegen::QrCode qrcodegen::QrCode::encodeText(const char *text, const Ecc &ecl) {
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QrCode QrCode::encodeText(const char *text, const Ecc &ecl) {
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std::vector<QrSegment> segs(QrSegment::makeSegments(text));
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return encodeSegments(segs, ecl);
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}
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qrcodegen::QrCode qrcodegen::QrCode::encodeBinary(const std::vector<uint8_t> &data, const Ecc &ecl) {
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QrCode QrCode::encodeBinary(const std::vector<uint8_t> &data, const Ecc &ecl) {
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std::vector<QrSegment> segs;
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segs.push_back(QrSegment::makeBytes(data));
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return encodeSegments(segs, ecl);
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}
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qrcodegen::QrCode qrcodegen::QrCode::encodeSegments(const std::vector<QrSegment> &segs, const Ecc &ecl,
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QrCode QrCode::encodeSegments(const std::vector<QrSegment> &segs, const Ecc &ecl,
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int minVersion, int maxVersion, int mask, bool boostEcl) {
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if (!(1 <= minVersion && minVersion <= maxVersion && maxVersion <= 40) || mask < -1 || mask > 7)
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throw "Invalid value";
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@@ -105,7 +107,7 @@ qrcodegen::QrCode qrcodegen::QrCode::encodeSegments(const std::vector<QrSegment>
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}
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qrcodegen::QrCode::QrCode(int ver, const Ecc &ecl, const std::vector<uint8_t> &dataCodewords, int mask) :
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QrCode::QrCode(int ver, const Ecc &ecl, const std::vector<uint8_t> &dataCodewords, int mask) :
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// Initialize scalar fields
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version(ver),
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size(1 <= ver && ver <= 40 ? ver * 4 + 17 : -1), // Avoid signed overflow undefined behavior
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@@ -129,7 +131,7 @@ qrcodegen::QrCode::QrCode(int ver, const Ecc &ecl, const std::vector<uint8_t> &d
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}
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qrcodegen::QrCode::QrCode(const QrCode &qr, int mask) :
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QrCode::QrCode(const QrCode &qr, int mask) :
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// Copy scalar fields
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version(qr.version),
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size(qr.size),
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@@ -149,12 +151,12 @@ qrcodegen::QrCode::QrCode(const QrCode &qr, int mask) :
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}
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int qrcodegen::QrCode::getMask() const {
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int QrCode::getMask() const {
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return mask;
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}
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int qrcodegen::QrCode::getModule(int x, int y) const {
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int QrCode::getModule(int x, int y) const {
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if (0 <= x && x < size && 0 <= y && y < size)
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return modules.at(y).at(x) ? 1 : 0;
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else
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@@ -162,7 +164,7 @@ int qrcodegen::QrCode::getModule(int x, int y) const {
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}
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std::string qrcodegen::QrCode::toSvgString(int border) const {
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std::string QrCode::toSvgString(int border) const {
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if (border < 0)
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throw "Border must be non-negative";
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std::ostringstream sb;
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@@ -190,7 +192,7 @@ std::string qrcodegen::QrCode::toSvgString(int border) const {
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}
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void qrcodegen::QrCode::drawFunctionPatterns() {
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void QrCode::drawFunctionPatterns() {
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// Draw horizontal and vertical timing patterns
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for (int i = 0; i < size; i++) {
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setFunctionModule(6, i, i % 2 == 0);
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@@ -220,7 +222,7 @@ void qrcodegen::QrCode::drawFunctionPatterns() {
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}
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void qrcodegen::QrCode::drawFormatBits(int mask) {
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void QrCode::drawFormatBits(int mask) {
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// Calculate error correction code and pack bits
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int data = errorCorrectionLevel.formatBits << 3 | mask; // errCorrLvl is uint2, mask is uint3
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int rem = data;
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@@ -249,7 +251,7 @@ void qrcodegen::QrCode::drawFormatBits(int mask) {
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}
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void qrcodegen::QrCode::drawVersion() {
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void QrCode::drawVersion() {
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if (version < 7)
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return;
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@@ -271,7 +273,7 @@ void qrcodegen::QrCode::drawVersion() {
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}
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void qrcodegen::QrCode::drawFinderPattern(int x, int y) {
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void QrCode::drawFinderPattern(int x, int y) {
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for (int i = -4; i <= 4; i++) {
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for (int j = -4; j <= 4; j++) {
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int dist = std::max(std::abs(i), std::abs(j)); // Chebyshev/infinity norm
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@@ -283,7 +285,7 @@ void qrcodegen::QrCode::drawFinderPattern(int x, int y) {
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}
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void qrcodegen::QrCode::drawAlignmentPattern(int x, int y) {
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void QrCode::drawAlignmentPattern(int x, int y) {
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for (int i = -2; i <= 2; i++) {
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for (int j = -2; j <= 2; j++)
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setFunctionModule(x + j, y + i, std::max(std::abs(i), std::abs(j)) != 1);
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@@ -291,13 +293,13 @@ void qrcodegen::QrCode::drawAlignmentPattern(int x, int y) {
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}
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void qrcodegen::QrCode::setFunctionModule(int x, int y, bool isBlack) {
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void QrCode::setFunctionModule(int x, int y, bool isBlack) {
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modules.at(y).at(x) = isBlack;
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isFunction.at(y).at(x) = true;
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}
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std::vector<uint8_t> qrcodegen::QrCode::appendErrorCorrection(const std::vector<uint8_t> &data) const {
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std::vector<uint8_t> QrCode::appendErrorCorrection(const std::vector<uint8_t> &data) const {
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if (data.size() != static_cast<unsigned int>(getNumDataCodewords(version, errorCorrectionLevel)))
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throw "Invalid argument";
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@@ -336,7 +338,7 @@ std::vector<uint8_t> qrcodegen::QrCode::appendErrorCorrection(const std::vector<
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}
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void qrcodegen::QrCode::drawCodewords(const std::vector<uint8_t> &data) {
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void QrCode::drawCodewords(const std::vector<uint8_t> &data) {
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if (data.size() != static_cast<unsigned int>(getNumRawDataModules(version) / 8))
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throw "Invalid argument";
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@@ -364,7 +366,7 @@ void qrcodegen::QrCode::drawCodewords(const std::vector<uint8_t> &data) {
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}
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void qrcodegen::QrCode::applyMask(int mask) {
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void QrCode::applyMask(int mask) {
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if (mask < 0 || mask > 7)
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throw "Mask value out of range";
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for (int y = 0; y < size; y++) {
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@@ -387,7 +389,7 @@ void qrcodegen::QrCode::applyMask(int mask) {
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}
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int qrcodegen::QrCode::handleConstructorMasking(int mask) {
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int QrCode::handleConstructorMasking(int mask) {
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if (mask == -1) { // Automatically choose best mask
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long minPenalty = LONG_MAX;
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for (int i = 0; i < 8; i++) {
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@@ -409,7 +411,7 @@ int qrcodegen::QrCode::handleConstructorMasking(int mask) {
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}
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long qrcodegen::QrCode::getPenaltyScore() const {
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long QrCode::getPenaltyScore() const {
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long result = 0;
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// Adjacent modules in row having same color
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@@ -489,7 +491,7 @@ long qrcodegen::QrCode::getPenaltyScore() const {
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}
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std::vector<int> qrcodegen::QrCode::getAlignmentPatternPositions(int ver) {
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std::vector<int> QrCode::getAlignmentPatternPositions(int ver) {
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if (ver < 1 || ver > 40)
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throw "Version number out of range";
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else if (ver == 1)
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@@ -512,7 +514,7 @@ std::vector<int> qrcodegen::QrCode::getAlignmentPatternPositions(int ver) {
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}
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int qrcodegen::QrCode::getNumRawDataModules(int ver) {
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int QrCode::getNumRawDataModules(int ver) {
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if (ver < 1 || ver > 40)
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throw "Version number out of range";
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int result = (16 * ver + 128) * ver + 64;
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@@ -526,7 +528,7 @@ int qrcodegen::QrCode::getNumRawDataModules(int ver) {
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}
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int qrcodegen::QrCode::getNumDataCodewords(int ver, const Ecc &ecl) {
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int QrCode::getNumDataCodewords(int ver, const Ecc &ecl) {
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if (ver < 1 || ver > 40)
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throw "Version number out of range";
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return getNumRawDataModules(ver) / 8 - ECC_CODEWORDS_PER_BLOCK[ecl.ordinal][ver] * NUM_ERROR_CORRECTION_BLOCKS[ecl.ordinal][ver];
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@@ -535,13 +537,13 @@ int qrcodegen::QrCode::getNumDataCodewords(int ver, const Ecc &ecl) {
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/*---- Tables of constants ----*/
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const int qrcodegen::QrCode::PENALTY_N1 = 3;
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const int qrcodegen::QrCode::PENALTY_N2 = 3;
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const int qrcodegen::QrCode::PENALTY_N3 = 40;
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const int qrcodegen::QrCode::PENALTY_N4 = 10;
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const int QrCode::PENALTY_N1 = 3;
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const int QrCode::PENALTY_N2 = 3;
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const int QrCode::PENALTY_N3 = 40;
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const int QrCode::PENALTY_N4 = 10;
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const int8_t qrcodegen::QrCode::ECC_CODEWORDS_PER_BLOCK[4][41] = {
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const int8_t QrCode::ECC_CODEWORDS_PER_BLOCK[4][41] = {
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// Version: (note that index 0 is for padding, and is set to an illegal value)
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//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
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{-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
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@@ -550,7 +552,7 @@ const int8_t qrcodegen::QrCode::ECC_CODEWORDS_PER_BLOCK[4][41] = {
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{-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
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};
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const int8_t qrcodegen::QrCode::NUM_ERROR_CORRECTION_BLOCKS[4][41] = {
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const int8_t QrCode::NUM_ERROR_CORRECTION_BLOCKS[4][41] = {
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// Version: (note that index 0 is for padding, and is set to an illegal value)
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//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
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{-1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 4, 4, 4, 4, 4, 6, 6, 6, 6, 7, 8, 8, 9, 9, 10, 12, 12, 12, 13, 14, 15, 16, 17, 18, 19, 19, 20, 21, 22, 24, 25}, // Low
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@@ -560,7 +562,7 @@ const int8_t qrcodegen::QrCode::NUM_ERROR_CORRECTION_BLOCKS[4][41] = {
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};
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qrcodegen::QrCode::ReedSolomonGenerator::ReedSolomonGenerator(int degree) :
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QrCode::ReedSolomonGenerator::ReedSolomonGenerator(int degree) :
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coefficients() {
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if (degree < 1 || degree > 255)
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throw "Degree out of range";
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@@ -585,7 +587,7 @@ qrcodegen::QrCode::ReedSolomonGenerator::ReedSolomonGenerator(int degree) :
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}
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std::vector<uint8_t> qrcodegen::QrCode::ReedSolomonGenerator::getRemainder(const std::vector<uint8_t> &data) const {
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std::vector<uint8_t> QrCode::ReedSolomonGenerator::getRemainder(const std::vector<uint8_t> &data) const {
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// Compute the remainder by performing polynomial division
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std::vector<uint8_t> result(coefficients.size());
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for (size_t i = 0; i < data.size(); i++) {
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@@ -599,7 +601,7 @@ std::vector<uint8_t> qrcodegen::QrCode::ReedSolomonGenerator::getRemainder(const
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}
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uint8_t qrcodegen::QrCode::ReedSolomonGenerator::multiply(uint8_t x, uint8_t y) {
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uint8_t QrCode::ReedSolomonGenerator::multiply(uint8_t x, uint8_t y) {
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// Russian peasant multiplication
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int z = 0;
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for (int i = 7; i >= 0; i--) {
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@@ -610,3 +612,5 @@ uint8_t qrcodegen::QrCode::ReedSolomonGenerator::multiply(uint8_t x, uint8_t y)
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throw "Assertion error";
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return static_cast<uint8_t>(z);
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}
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}
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