| 341 | |
| 342 | |
| 343 | void qrcodegen::QrCode::drawCodewords(const std::vector<uint8_t> &data) { |
| 344 | if (data.size() != static_cast<unsigned int>(getNumRawDataModules(version) / 8)) |
| 345 | throw "Invalid argument"; |
| 346 | |
| 347 | size_t i = 0; // Bit index into the data |
| 348 | // Do the funny zigzag scan |
| 349 | for (int right = size - 1; right >= 1; right -= 2) { // Index of right column in each column pair |
| 350 | if (right == 6) |
| 351 | right = 5; |
| 352 | for (int vert = 0; vert < size; vert++) { // Vertical counter |
| 353 | for (int j = 0; j < 2; j++) { |
| 354 | int x = right - j; // Actual x coordinate |
| 355 | bool upwards = ((right & 2) == 0) ^ (x < 6); |
| 356 | int y = upwards ? size - 1 - vert : vert; // Actual y coordinate |
| 357 | if (!isFunction.at(y).at(x) && i < data.size() * 8) { |
| 358 | modules.at(y).at(x) = ((data.at(i >> 3) >> (7 - (i & 7))) & 1) != 0; |
| 359 | i++; |
| 360 | } |
| 361 | // If there are any remainder bits (0 to 7), they are already |
| 362 | // set to 0/false/white when the grid of modules was initialized |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | if (static_cast<unsigned int>(i) != data.size() * 8) |
| 367 | throw "Assertion error"; |
| 368 | } |
| 369 | |
| 370 | |
| 371 | void qrcodegen::QrCode::applyMask(int mask) { |
nothing calls this directly
no outgoing calls
no test coverage detected