+++ /dev/null
-// [qr.js](http://neocotic.com/qr.js)
-// (c) 2014 Alasdair Mercer
-// Licensed under the GPL Version 3 license.
-// Based on [jsqrencode](http://code.google.com/p/jsqrencode/)
-// (c) 2010 tz@execpc.com
-// Licensed under the GPL Version 3 license.
-// For all details and documentation:
-// <http://neocotic.com/qr.js>
-
-(function (root) {
-
- 'use strict';
-
- // Private constants
- // -----------------
-
- // Alignment pattern.
- var ALIGNMENT_DELTA = [
- 0, 11, 15, 19, 23, 27, 31,
- 16, 18, 20, 22, 24, 26, 28, 20, 22, 24, 24, 26, 28, 28, 22, 24, 24,
- 26, 26, 28, 28, 24, 24, 26, 26, 26, 28, 28, 24, 26, 26, 26, 28, 28
- ];
- // Default MIME type.
- var DEFAULT_MIME = 'image/png';
- // MIME used to initiate a browser download prompt when `qr.save` is called.
- var DOWNLOAD_MIME = 'image/octet-stream';
- // There are four elements per version. The first two indicate the number of blocks, then the
- // data width, and finally the ECC width.
- var ECC_BLOCKS = [
- 1, 0, 19, 7, 1, 0, 16, 10, 1, 0, 13, 13, 1, 0, 9, 17,
- 1, 0, 34, 10, 1, 0, 28, 16, 1, 0, 22, 22, 1, 0, 16, 28,
- 1, 0, 55, 15, 1, 0, 44, 26, 2, 0, 17, 18, 2, 0, 13, 22,
- 1, 0, 80, 20, 2, 0, 32, 18, 2, 0, 24, 26, 4, 0, 9, 16,
- 1, 0, 108, 26, 2, 0, 43, 24, 2, 2, 15, 18, 2, 2, 11, 22,
- 2, 0, 68, 18, 4, 0, 27, 16, 4, 0, 19, 24, 4, 0, 15, 28,
- 2, 0, 78, 20, 4, 0, 31, 18, 2, 4, 14, 18, 4, 1, 13, 26,
- 2, 0, 97, 24, 2, 2, 38, 22, 4, 2, 18, 22, 4, 2, 14, 26,
- 2, 0, 116, 30, 3, 2, 36, 22, 4, 4, 16, 20, 4, 4, 12, 24,
- 2, 2, 68, 18, 4, 1, 43, 26, 6, 2, 19, 24, 6, 2, 15, 28,
- 4, 0, 81, 20, 1, 4, 50, 30, 4, 4, 22, 28, 3, 8, 12, 24,
- 2, 2, 92, 24, 6, 2, 36, 22, 4, 6, 20, 26, 7, 4, 14, 28,
- 4, 0, 107, 26, 8, 1, 37, 22, 8, 4, 20, 24, 12, 4, 11, 22,
- 3, 1, 115, 30, 4, 5, 40, 24, 11, 5, 16, 20, 11, 5, 12, 24,
- 5, 1, 87, 22, 5, 5, 41, 24, 5, 7, 24, 30, 11, 7, 12, 24,
- 5, 1, 98, 24, 7, 3, 45, 28, 15, 2, 19, 24, 3, 13, 15, 30,
- 1, 5, 107, 28, 10, 1, 46, 28, 1, 15, 22, 28, 2, 17, 14, 28,
- 5, 1, 120, 30, 9, 4, 43, 26, 17, 1, 22, 28, 2, 19, 14, 28,
- 3, 4, 113, 28, 3, 11, 44, 26, 17, 4, 21, 26, 9, 16, 13, 26,
- 3, 5, 107, 28, 3, 13, 41, 26, 15, 5, 24, 30, 15, 10, 15, 28,
- 4, 4, 116, 28, 17, 0, 42, 26, 17, 6, 22, 28, 19, 6, 16, 30,
- 2, 7, 111, 28, 17, 0, 46, 28, 7, 16, 24, 30, 34, 0, 13, 24,
- 4, 5, 121, 30, 4, 14, 47, 28, 11, 14, 24, 30, 16, 14, 15, 30,
- 6, 4, 117, 30, 6, 14, 45, 28, 11, 16, 24, 30, 30, 2, 16, 30,
- 8, 4, 106, 26, 8, 13, 47, 28, 7, 22, 24, 30, 22, 13, 15, 30,
- 10, 2, 114, 28, 19, 4, 46, 28, 28, 6, 22, 28, 33, 4, 16, 30,
- 8, 4, 122, 30, 22, 3, 45, 28, 8, 26, 23, 30, 12, 28, 15, 30,
- 3, 10, 117, 30, 3, 23, 45, 28, 4, 31, 24, 30, 11, 31, 15, 30,
- 7, 7, 116, 30, 21, 7, 45, 28, 1, 37, 23, 30, 19, 26, 15, 30,
- 5, 10, 115, 30, 19, 10, 47, 28, 15, 25, 24, 30, 23, 25, 15, 30,
- 13, 3, 115, 30, 2, 29, 46, 28, 42, 1, 24, 30, 23, 28, 15, 30,
- 17, 0, 115, 30, 10, 23, 46, 28, 10, 35, 24, 30, 19, 35, 15, 30,
- 17, 1, 115, 30, 14, 21, 46, 28, 29, 19, 24, 30, 11, 46, 15, 30,
- 13, 6, 115, 30, 14, 23, 46, 28, 44, 7, 24, 30, 59, 1, 16, 30,
- 12, 7, 121, 30, 12, 26, 47, 28, 39, 14, 24, 30, 22, 41, 15, 30,
- 6, 14, 121, 30, 6, 34, 47, 28, 46, 10, 24, 30, 2, 64, 15, 30,
- 17, 4, 122, 30, 29, 14, 46, 28, 49, 10, 24, 30, 24, 46, 15, 30,
- 4, 18, 122, 30, 13, 32, 46, 28, 48, 14, 24, 30, 42, 32, 15, 30,
- 20, 4, 117, 30, 40, 7, 47, 28, 43, 22, 24, 30, 10, 67, 15, 30,
- 19, 6, 118, 30, 18, 31, 47, 28, 34, 34, 24, 30, 20, 61, 15, 30
- ];
- // Map of human-readable ECC levels.
- var ECC_LEVELS = {
- L: 1,
- M: 2,
- Q: 3,
- H: 4
- };
- // Final format bits with mask (level << 3 | mask).
- var FINAL_FORMAT = [
- 0x77c4, 0x72f3, 0x7daa, 0x789d, 0x662f, 0x6318, 0x6c41, 0x6976, /* L */
- 0x5412, 0x5125, 0x5e7c, 0x5b4b, 0x45f9, 0x40ce, 0x4f97, 0x4aa0, /* M */
- 0x355f, 0x3068, 0x3f31, 0x3a06, 0x24b4, 0x2183, 0x2eda, 0x2bed, /* Q */
- 0x1689, 0x13be, 0x1ce7, 0x19d0, 0x0762, 0x0255, 0x0d0c, 0x083b /* H */
- ];
- // Galois field exponent table.
- var GALOIS_EXPONENT = [
- 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26,
- 0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, 0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0,
- 0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, 0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23,
- 0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, 0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1,
- 0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, 0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0,
- 0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, 0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2,
- 0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, 0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce,
- 0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, 0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc,
- 0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, 0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54,
- 0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, 0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73,
- 0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, 0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff,
- 0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, 0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41,
- 0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, 0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6,
- 0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, 0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09,
- 0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, 0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16,
- 0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x00
- ];
- // Galois field log table.
- var GALOIS_LOG = [
- 0xff, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6, 0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b,
- 0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81, 0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71,
- 0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21, 0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45,
- 0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9, 0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6,
- 0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd, 0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88,
- 0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd, 0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40,
- 0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e, 0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d,
- 0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b, 0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57,
- 0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d, 0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18,
- 0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c, 0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e,
- 0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd, 0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61,
- 0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e, 0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2,
- 0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76, 0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6,
- 0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa, 0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a,
- 0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51, 0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7,
- 0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8, 0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf
- ];
- // *Badness* coefficients.
- var N1 = 3;
- var N2 = 3;
- var N3 = 40;
- var N4 = 10;
- // Version pattern.
- var VERSION_BLOCK = [
- 0xc94, 0x5bc, 0xa99, 0x4d3, 0xbf6, 0x762, 0x847, 0x60d, 0x928, 0xb78, 0x45d, 0xa17, 0x532,
- 0x9a6, 0x683, 0x8c9, 0x7ec, 0xec4, 0x1e1, 0xfab, 0x08e, 0xc1a, 0x33f, 0xd75, 0x250, 0x9d5,
- 0x6f0, 0x8ba, 0x79f, 0xb0b, 0x42e, 0xa64, 0x541, 0xc69
- ];
- // Mode for node.js file system file writes.
- var WRITE_MODE = parseInt('0666', 8);
-
- // Private variables
- // -----------------
-
- // Run lengths for badness.
- var badBuffer = [];
- // Constructor for `canvas` elements in the node.js environment.
- var Canvas;
- // Data block.
- var dataBlock;
- // ECC data blocks and tables.
- var eccBlock, neccBlock1, neccBlock2;
- // ECC buffer.
- var eccBuffer = [];
- // ECC level (defaults to **L**).
- var eccLevel = 1;
- // Image buffer.
- var frameBuffer = [];
- // Fixed part of the image.
- var frameMask = [];
- // File system within the node.js environment.
- var fs;
- // Constructor for `img` elements in the node.js environment.
- var Image;
- // Indicates whether or not this script is running in node.js.
- var inNode = false;
- // Generator polynomial.
- var polynomial = [];
- // Save the previous value of the `qr` variable.
- var previousQr = root.qr;
- // Data input buffer.
- var stringBuffer = [];
- // Version for the data.
- var version;
- // Data width is based on `version`.
- var width;
-
- // Private functions
- // -----------------
-
- // Create a new canvas using `document.createElement` unless script is running in node.js, in
- // which case the `canvas` module is used.
- function createCanvas() {
- return inNode ? new Canvas() : root.document.createElement('canvas');
- }
-
- // Create a new image using `document.createElement` unless script is running in node.js, in
- // which case the `canvas` module is used.
- function createImage() {
- return inNode ? new Image() : root.document.createElement('img');
- }
-
- // Force the canvas image to be downloaded in the browser.
- // Optionally, a `callback` function can be specified which will be called upon completed. Since
- // this is not an asynchronous operation, this is merely convenient and helps simplify the
- // calling code.
- function download(cvs, data, callback) {
- var mime = data.mime || DEFAULT_MIME;
-
- root.location.href = cvs.toDataURL(mime).replace(mime, DOWNLOAD_MIME);
-
- if (typeof callback === 'function') callback();
- }
-
- // Normalize the `data` that is provided to the main API.
- function normalizeData(data) {
- if (typeof data === 'string') data = { value: data };
- return data || {};
- }
-
- // Override the `qr` API methods that require HTML5 canvas support to throw a relevant error.
- function overrideAPI(qr) {
- var methods = [ 'canvas', 'image', 'save', 'saveSync', 'toDataURL' ];
- var i;
-
- function overrideMethod(name) {
- qr[name] = function () {
- throw new Error(name + ' requires HTML5 canvas element support');
- };
- }
-
- for (i = 0; i < methods.length; i++) {
- overrideMethod(methods[i]);
- }
- }
-
- // Asynchronously write the data of the rendered canvas to a given file path.
- function writeFile(cvs, data, callback) {
- if (typeof data.path !== 'string') {
- return callback(new TypeError('Invalid path type: ' + typeof data.path));
- }
-
- var fd, buff;
-
- // Write the buffer to the open file stream once both prerequisites are met.
- function writeBuffer() {
- fs.write(fd, buff, 0, buff.length, 0, function (error) {
- fs.close(fd);
-
- callback(error);
- });
- }
-
- // Create a buffer of the canvas' data.
- cvs.toBuffer(function (error, _buff) {
- if (error) return callback(error);
-
- buff = _buff;
- if (fd) {
- writeBuffer();
- }
- });
-
- // Open a stream for the file to be written.
- fs.open(data.path, 'w', WRITE_MODE, function (error, _fd) {
- if (error) return callback(error);
-
- fd = _fd;
- if (buff) {
- writeBuffer();
- }
- });
- }
-
- // Write the data of the rendered canvas to a given file path.
- function writeFileSync(cvs, data) {
- if (typeof data.path !== 'string') {
- throw new TypeError('Invalid path type: ' + typeof data.path);
- }
-
- var buff = cvs.toBuffer();
- var fd = fs.openSync(data.path, 'w', WRITE_MODE);
-
- try {
- fs.writeSync(fd, buff, 0, buff.length, 0);
- } finally {
- fs.closeSync(fd);
- }
- }
-
- // Set bit to indicate cell in frame is immutable (symmetric around diagonal).
- function setMask(x, y) {
- var bit;
-
- if (x > y) {
- bit = x;
- x = y;
- y = bit;
- }
-
- bit = y;
- bit *= y;
- bit += y;
- bit >>= 1;
- bit += x;
-
- frameMask[bit] = 1;
- }
-
- // Enter alignment pattern. Foreground colour to frame, background to mask. Frame will be merged
- // with mask later.
- function addAlignment(x, y) {
- var i;
-
- frameBuffer[x + width * y] = 1;
-
- for (i = -2; i < 2; i++) {
- frameBuffer[(x + i) + width * (y - 2)] = 1;
- frameBuffer[(x - 2) + width * (y + i + 1)] = 1;
- frameBuffer[(x + 2) + width * (y + i)] = 1;
- frameBuffer[(x + i + 1) + width * (y + 2)] = 1;
- }
-
- for (i = 0; i < 2; i++) {
- setMask(x - 1, y + i);
- setMask(x + 1, y - i);
- setMask(x - i, y - 1);
- setMask(x + i, y + 1);
- }
- }
-
- // Exponentiation mod N.
- function modN(x) {
- while (x >= 255) {
- x -= 255;
- x = (x >> 8) + (x & 255);
- }
-
- return x;
- }
-
- // Calculate and append `ecc` data to the `data` block. If block is in the string buffer the
- // indices to buffers are used.
- function appendData(data, dataLength, ecc, eccLength) {
- var bit, i, j;
-
- for (i = 0; i < eccLength; i++) {
- stringBuffer[ecc + i] = 0;
- }
-
- for (i = 0; i < dataLength; i++) {
- bit = GALOIS_LOG[stringBuffer[data + i] ^ stringBuffer[ecc]];
-
- if (bit !== 255) {
- for (j = 1; j < eccLength; j++) {
- stringBuffer[ecc + j - 1] = stringBuffer[ecc + j] ^
- GALOIS_EXPONENT[modN(bit + polynomial[eccLength - j])];
- }
- } else {
- for (j = ecc; j < ecc + eccLength; j++) {
- stringBuffer[j] = stringBuffer[j + 1];
- }
- }
-
- stringBuffer[ecc + eccLength - 1] = bit === 255 ? 0 :
- GALOIS_EXPONENT[modN(bit + polynomial[0])];
- }
- }
-
- // Check mask since symmetricals use half.
- function isMasked(x, y) {
- var bit;
-
- if (x > y) {
- bit = x;
- x = y;
- y = bit;
- }
-
- bit = y;
- bit += y * y;
- bit >>= 1;
- bit += x;
-
- return frameMask[bit] === 1;
- }
-
- // Apply the selected mask out of the 8 options.
- function applyMask(mask) {
- var x, y, r3x, r3y;
-
- switch (mask) {
- case 0:
- for (y = 0; y < width; y++) {
- for (x = 0; x < width; x++) {
- if (!((x + y) & 1) && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 1:
- for (y = 0; y < width; y++) {
- for (x = 0; x < width; x++) {
- if (!(y & 1) && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 2:
- for (y = 0; y < width; y++) {
- for (r3x = 0, x = 0; x < width; x++, r3x++) {
- if (r3x === 3) r3x = 0;
-
- if (!r3x && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 3:
- for (r3y = 0, y = 0; y < width; y++, r3y++) {
- if (r3y === 3) r3y = 0;
-
- for (r3x = r3y, x = 0; x < width; x++, r3x++) {
- if (r3x === 3) r3x = 0;
-
- if (!r3x && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 4:
- for (y = 0; y < width; y++) {
- for (r3x = 0, r3y = ((y >> 1) & 1), x = 0; x < width; x++, r3x++) {
- if (r3x === 3) {
- r3x = 0;
- r3y = !r3y;
- }
-
- if (!r3y && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 5:
- for (r3y = 0, y = 0; y < width; y++, r3y++) {
- if (r3y === 3) r3y = 0;
-
- for (r3x = 0, x = 0; x < width; x++, r3x++) {
- if (r3x === 3) r3x = 0;
-
- if (!((x & y & 1) + !(!r3x | !r3y)) && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 6:
- for (r3y = 0, y = 0; y < width; y++, r3y++) {
- if (r3y === 3) r3y = 0;
-
- for (r3x = 0, x = 0; x < width; x++, r3x++) {
- if (r3x === 3) r3x = 0;
-
- if (!(((x & y & 1) + (r3x && (r3x === r3y))) & 1) && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- case 7:
- for (r3y = 0, y = 0; y < width; y++, r3y++) {
- if (r3y === 3) r3y = 0;
-
- for (r3x = 0, x = 0; x < width; x++, r3x++) {
- if (r3x === 3) r3x = 0;
-
- if (!(((r3x && (r3x === r3y)) + ((x + y) & 1)) & 1) && !isMasked(x, y)) {
- frameBuffer[x + y * width] ^= 1;
- }
- }
- }
-
- break;
- }
- }
-
- // Using the table for the length of each run, calculate the amount of bad image. Long runs or
- // those that look like finders are called twice; once for X and Y.
- function getBadRuns(length) {
- var badRuns = 0;
- var i;
-
- for (i = 0; i <= length; i++) {
- if (badBuffer[i] >= 5) {
- badRuns += N1 + badBuffer[i] - 5;
- }
- }
-
- // FBFFFBF as in finder.
- for (i = 3; i < length - 1; i += 2) {
- if (badBuffer[i - 2] === badBuffer[i + 2] &&
- badBuffer[i + 2] === badBuffer[i - 1] &&
- badBuffer[i - 1] === badBuffer[i + 1] &&
- badBuffer[i - 1] * 3 === badBuffer[i] &&
- // Background around the foreground pattern? Not part of the specs.
- (badBuffer[i - 3] === 0 || i + 3 > length ||
- badBuffer[i - 3] * 3 >= badBuffer[i] * 4 ||
- badBuffer[i + 3] * 3 >= badBuffer[i] * 4)) {
- badRuns += N3;
- }
- }
-
- return badRuns;
- }
-
- // Calculate how bad the masked image is (e.g. blocks, imbalance, runs, or finders).
- function checkBadness() {
- var b, b1, bad, big, bw, count, h, x, y;
- bad = bw = count = 0;
-
- // Blocks of same colour.
- for (y = 0; y < width - 1; y++) {
- for (x = 0; x < width - 1; x++) {
- // All foreground colour.
- if ((frameBuffer[x + width * y] &&
- frameBuffer[(x + 1) + width * y] &&
- frameBuffer[x + width * (y + 1)] &&
- frameBuffer[(x + 1) + width * (y + 1)]) ||
- // All background colour.
- !(frameBuffer[x + width * y] ||
- frameBuffer[(x + 1) + width * y] ||
- frameBuffer[x + width * (y + 1)] ||
- frameBuffer[(x + 1) + width * (y + 1)])) {
- bad += N2;
- }
- }
- }
-
- // X runs.
- for (y = 0; y < width; y++) {
- badBuffer[0] = 0;
-
- for (h = b = x = 0; x < width; x++) {
- if ((b1 = frameBuffer[x + width * y]) === b) {
- badBuffer[h]++;
- } else {
- badBuffer[++h] = 1;
- }
-
- b = b1;
- bw += b ? 1 : -1;
- }
-
- bad += getBadRuns(h);
- }
-
- if (bw < 0) bw = -bw;
-
- big = bw;
- big += big << 2;
- big <<= 1;
-
- while (big > width * width) {
- big -= width * width;
- count++;
- }
-
- bad += count * N4;
-
- // Y runs.
- for (x = 0; x < width; x++) {
- badBuffer[0] = 0;
-
- for (h = b = y = 0; y < width; y++) {
- if ((b1 = frameBuffer[x + width * y]) === b) {
- badBuffer[h]++;
- } else {
- badBuffer[++h] = 1;
- }
-
- b = b1;
- }
-
- bad += getBadRuns(h);
- }
-
- return bad;
- }
-
- // Generate the encoded QR image for the string provided.
- function generateFrame(str) {
- var i, j, k, m, t, v, x, y;
-
- // Find the smallest version that fits the string.
- t = str.length;
-
- version = 0;
-
- do {
- version++;
-
- k = (eccLevel - 1) * 4 + (version - 1) * 16;
-
- neccBlock1 = ECC_BLOCKS[k++];
- neccBlock2 = ECC_BLOCKS[k++];
- dataBlock = ECC_BLOCKS[k++];
- eccBlock = ECC_BLOCKS[k];
-
- k = dataBlock * (neccBlock1 + neccBlock2) + neccBlock2 - 3 + (version <= 9);
-
- if (t <= k) break;
- } while (version < 40);
-
- // FIXME: Ensure that it fits insted of being truncated.
- width = 17 + 4 * version;
-
- // Allocate, clear and setup data structures.
- v = dataBlock + (dataBlock + eccBlock) * (neccBlock1 + neccBlock2) + neccBlock2;
-
- for (t = 0; t < v; t++) {
- eccBuffer[t] = 0;
- }
-
- stringBuffer = str.slice(0);
-
- for (t = 0; t < width * width; t++) {
- frameBuffer[t] = 0;
- }
-
- for (t = 0; t < (width * (width + 1) + 1) / 2; t++) {
- frameMask[t] = 0;
- }
-
- // Insert finders: Foreground colour to frame and background to mask.
- for (t = 0; t < 3; t++) {
- k = y = 0;
-
- if (t === 1) k = (width - 7);
- if (t === 2) y = (width - 7);
-
- frameBuffer[(y + 3) + width * (k + 3)] = 1;
-
- for (x = 0; x < 6; x++) {
- frameBuffer[(y + x) + width * k] = 1;
- frameBuffer[y + width * (k + x + 1)] = 1;
- frameBuffer[(y + 6) + width * (k + x)] = 1;
- frameBuffer[(y + x + 1) + width * (k + 6)] = 1;
- }
-
- for (x = 1; x < 5; x++) {
- setMask(y + x, k + 1);
- setMask(y + 1, k + x + 1);
- setMask(y + 5, k + x);
- setMask(y + x + 1, k + 5);
- }
-
- for (x = 2; x < 4; x++) {
- frameBuffer[(y + x) + width * (k + 2)] = 1;
- frameBuffer[(y + 2) + width * (k + x + 1)] = 1;
- frameBuffer[(y + 4) + width * (k + x)] = 1;
- frameBuffer[(y + x + 1) + width * (k + 4)] = 1;
- }
- }
-
- // Alignment blocks.
- if (version > 1) {
- t = ALIGNMENT_DELTA[version];
- y = width - 7;
-
- for (;;) {
- x = width - 7;
-
- while (x > t - 3) {
- addAlignment(x, y);
-
- if (x < t) break;
-
- x -= t;
- }
-
- if (y <= t + 9) break;
-
- y -= t;
-
- addAlignment(6, y);
- addAlignment(y, 6);
- }
- }
-
- // Single foreground cell.
- frameBuffer[8 + width * (width - 8)] = 1;
-
- // Timing gap (mask only).
- for (y = 0; y < 7; y++) {
- setMask(7, y);
- setMask(width - 8, y);
- setMask(7, y + width - 7);
- }
-
- for (x = 0; x < 8; x++) {
- setMask(x, 7);
- setMask(x + width - 8, 7);
- setMask(x, width - 8);
- }
-
- // Reserve mask, format area.
- for (x = 0; x < 9; x++) {
- setMask(x, 8);
- }
-
- for (x = 0; x < 8; x++) {
- setMask(x + width - 8, 8);
- setMask(8, x);
- }
-
- for (y = 0; y < 7; y++) {
- setMask(8, y + width - 7);
- }
-
- // Timing row/column.
- for (x = 0; x < width - 14; x++) {
- if (x & 1) {
- setMask(8 + x, 6);
- setMask(6, 8 + x);
- } else {
- frameBuffer[(8 + x) + width * 6] = 1;
- frameBuffer[6 + width * (8 + x)] = 1;
- }
- }
-
- // Version block.
- if (version > 6) {
- t = VERSION_BLOCK[version - 7];
- k = 17;
-
- for (x = 0; x < 6; x++) {
- for (y = 0; y < 3; y++, k--) {
- if (1 & (k > 11 ? version >> (k - 12) : t >> k)) {
- frameBuffer[(5 - x) + width * (2 - y + width - 11)] = 1;
- frameBuffer[(2 - y + width - 11) + width * (5 - x)] = 1;
- } else {
- setMask(5 - x, 2 - y + width - 11);
- setMask(2 - y + width - 11, 5 - x);
- }
- }
- }
- }
-
- // Sync mask bits. Only set above for background cells, so now add the foreground.
- for (y = 0; y < width; y++) {
- for (x = 0; x <= y; x++) {
- if (frameBuffer[x + width * y]) {
- setMask(x, y);
- }
- }
- }
-
- // Convert string to bit stream. 8-bit data to QR-coded 8-bit data (numeric, alphanum, or kanji
- // not supported).
- v = stringBuffer.length;
-
- // String to array.
- for (i = 0; i < v; i++) {
- eccBuffer[i] = stringBuffer.charCodeAt(i);
- }
-
- stringBuffer = eccBuffer.slice(0);
-
- // Calculate max string length.
- x = dataBlock * (neccBlock1 + neccBlock2) + neccBlock2;
-
- if (v >= x - 2) {
- v = x - 2;
-
- if (version > 9) v--;
- }
-
- // Shift and re-pack to insert length prefix.
- i = v;
-
- if (version > 9) {
- stringBuffer[i + 2] = 0;
- stringBuffer[i + 3] = 0;
-
- while (i--) {
- t = stringBuffer[i];
-
- stringBuffer[i + 3] |= 255 & (t << 4);
- stringBuffer[i + 2] = t >> 4;
- }
-
- stringBuffer[2] |= 255 & (v << 4);
- stringBuffer[1] = v >> 4;
- stringBuffer[0] = 0x40 | (v >> 12);
- } else {
- stringBuffer[i + 1] = 0;
- stringBuffer[i + 2] = 0;
-
- while (i--) {
- t = stringBuffer[i];
-
- stringBuffer[i + 2] |= 255 & (t << 4);
- stringBuffer[i + 1] = t >> 4;
- }
-
- stringBuffer[1] |= 255 & (v << 4);
- stringBuffer[0] = 0x40 | (v >> 4);
- }
-
- // Fill to end with pad pattern.
- i = v + 3 - (version < 10);
-
- while (i < x) {
- stringBuffer[i++] = 0xec;
- stringBuffer[i++] = 0x11;
- }
-
- // Calculate generator polynomial.
- polynomial[0] = 1;
-
- for (i = 0; i < eccBlock; i++) {
- polynomial[i + 1] = 1;
-
- for (j = i; j > 0; j--) {
- polynomial[j] = polynomial[j] ? polynomial[j - 1] ^
- GALOIS_EXPONENT[modN(GALOIS_LOG[polynomial[j]] + i)] : polynomial[j - 1];
- }
-
- polynomial[0] = GALOIS_EXPONENT[modN(GALOIS_LOG[polynomial[0]] + i)];
- }
-
- // Use logs for generator polynomial to save calculation step.
- for (i = 0; i <= eccBlock; i++) {
- polynomial[i] = GALOIS_LOG[polynomial[i]];
- }
-
- // Append ECC to data buffer.
- k = x;
- y = 0;
-
- for (i = 0; i < neccBlock1; i++) {
- appendData(y, dataBlock, k, eccBlock);
-
- y += dataBlock;
- k += eccBlock;
- }
-
- for (i = 0; i < neccBlock2; i++) {
- appendData(y, dataBlock + 1, k, eccBlock);
-
- y += dataBlock + 1;
- k += eccBlock;
- }
-
- // Interleave blocks.
- y = 0;
-
- for (i = 0; i < dataBlock; i++) {
- for (j = 0; j < neccBlock1; j++) {
- eccBuffer[y++] = stringBuffer[i + j * dataBlock];
- }
-
- for (j = 0; j < neccBlock2; j++) {
- eccBuffer[y++] = stringBuffer[(neccBlock1 * dataBlock) + i + (j * (dataBlock + 1))];
- }
- }
-
- for (j = 0; j < neccBlock2; j++) {
- eccBuffer[y++] = stringBuffer[(neccBlock1 * dataBlock) + i + (j * (dataBlock + 1))];
- }
-
- for (i = 0; i < eccBlock; i++) {
- for (j = 0; j < neccBlock1 + neccBlock2; j++) {
- eccBuffer[y++] = stringBuffer[x + i + j * eccBlock];
- }
- }
-
- stringBuffer = eccBuffer;
-
- // Pack bits into frame avoiding masked area.
- x = y = width - 1;
- k = v = 1;
-
- // inteleaved data and ECC codes.
- m = (dataBlock + eccBlock) * (neccBlock1 + neccBlock2) + neccBlock2;
-
- for (i = 0; i < m; i++) {
- t = stringBuffer[i];
-
- for (j = 0; j < 8; j++, t <<= 1) {
- if (0x80 & t) {
- frameBuffer[x + width * y] = 1;
- }
-
- // Find next fill position.
- do {
- if (v) {
- x--;
- } else {
- x++;
-
- if (k) {
- if (y !== 0) {
- y--;
- } else {
- x -= 2;
- k = !k;
-
- if (x === 6) {
- x--;
- y = 9;
- }
- }
- } else {
- if (y !== width - 1) {
- y++;
- } else {
- x -= 2;
- k = !k;
-
- if (x === 6) {
- x--;
- y -= 8;
- }
- }
- }
- }
-
- v = !v;
- } while (isMasked(x, y));
- }
- }
-
- // Save pre-mask copy of frame.
- stringBuffer = frameBuffer.slice(0);
-
- t = 0;
- y = 30000;
-
- // Using `for` instead of `while` since in original Arduino code if an early mask was *good
- // enough* it wouldn't try for a better one since they get more complex and take longer.
- for (k = 0; k < 8; k++) {
- // Returns foreground-background imbalance.
- applyMask(k);
-
- x = checkBadness();
-
- // Is current mask better than previous best?
- if (x < y) {
- y = x;
- t = k;
- }
-
- // Don't increment `i` to a void redoing mask.
- if (t === 7) break;
-
- // Reset for next pass.
- frameBuffer = stringBuffer.slice(0);
- }
-
- // Redo best mask as none were *good enough* (i.e. last wasn't `t`).
- if (t !== k) {
- applyMask(t);
- }
-
- // Add in final mask/ECC level bytes.
- y = FINAL_FORMAT[t + ((eccLevel - 1) << 3)];
-
- // Low byte.
- for (k = 0; k < 8; k++, y >>= 1) {
- if (y & 1) {
- frameBuffer[(width - 1 - k) + width * 8] = 1;
-
- if (k < 6) {
- frameBuffer[8 + width * k] = 1;
- } else {
- frameBuffer[8 + width * (k + 1)] = 1;
- }
- }
- }
-
- // High byte.
- for (k = 0; k < 7; k++, y >>= 1) {
- if (y & 1) {
- frameBuffer[8 + width * (width - 7 + k)] = 1;
-
- if (k) {
- frameBuffer[(6 - k) + width * 8] = 1;
- } else {
- frameBuffer[7 + width * 8] = 1;
- }
- }
- }
-
- // Finally, return the image data.
- return frameBuffer;
- }
-
- // qr.js setup
- // -----------
-
- // Build the publicly exposed API.
- var qr = {
-
- // Constants
- // ---------
-
- // Current version of `qr`.
- VERSION: '1.1.3',
-
- // QR functions
- // ------------
-
- // Generate the QR code using the data provided and render it on to a `<canvas>` element.
- // If no `<canvas>` element is specified in the argument provided a new one will be created and
- // used.
- // ECC (error correction capacity) determines how many intential errors are contained in the QR
- // code.
- canvas: function(data) {
- data = normalizeData(data);
-
- // Module size of the generated QR code (i.e. 1-10).
- var size = data.size >= 1 && data.size <= 10 ? data.size : 4;
- // Actual size of the QR code symbol and is scaled to 25 pixels (e.g. 1 = 25px, 3 = 75px).
- size *= 25;
-
- // `<canvas>` element used to render the QR code.
- var cvs = data.canvas || createCanvas();
- // Retreive the 2D context of the canvas.
- var c2d = cvs.getContext('2d');
- // Ensure the canvas has the correct dimensions.
- c2d.canvas.width = size;
- c2d.canvas.height = size;
- // Fill the canvas with the correct background colour.
- c2d.fillStyle = data.background || '#fff';
- c2d.fillRect(0, 0, size, size);
-
- // Determine the ECC level to be applied.
- eccLevel = ECC_LEVELS[(data.level && data.level.toUpperCase()) || 'L'];
-
- // Generate the image frame for the given `value`.
- var frame = generateFrame(data.value || '');
-
- c2d.lineWidth = 1;
-
- // Determine the *pixel* size.
- var px = size;
- px /= width;
- px = Math.floor(px);
-
- // Draw the QR code.
- c2d.clearRect(0, 0, size, size);
- c2d.fillStyle = data.background || '#fff';
- c2d.fillRect(0, 0, px * (width + 8), px * (width + 8));
- c2d.fillStyle = data.foreground || '#000';
-
- var i, j;
-
- for (i = 0; i < width; i++) {
- for (j = 0; j < width; j++) {
- if (frame[j * width + i]) {
- c2d.fillRect(px * i, px * j, px, px);
- }
- }
- }
-
- return cvs;
- },
-
- // Generate the QR code using the data provided and render it on to a `<img>` element.
- // If no `<img>` element is specified in the argument provided a new one will be created and
- // used.
- // ECC (error correction capacity) determines how many intential errors are contained in the QR
- // code.
- image: function(data) {
- data = normalizeData(data);
-
- // `<canvas>` element only which the QR code is rendered.
- var cvs = this.canvas(data);
- // `<img>` element used to display the QR code.
- var img = data.image || createImage();
-
- // Apply the QR code to `img`.
- img.src = cvs.toDataURL(data.mime || DEFAULT_MIME);
- img.height = cvs.height;
- img.width = cvs.width;
-
- return img;
- },
-
- // Generate the QR code using the data provided and render it on to a `<canvas>` element and
- // save it as an image file.
- // If no `<canvas>` element is specified in the argument provided a new one will be created and
- // used.
- // ECC (error correction capacity) determines how many intential errors are contained in the QR
- // code.
- // If called in a browser the `path` property/argument is ignored and will simply prompt the
- // user to choose a location and file name. However, if called within node.js the file will be
- // saved to specified path.
- // A `callback` function must be provided which will be called once the saving process has
- // started. If an error occurs it will be passed as the first argument to this function,
- // otherwise this argument will be `null`.
- save: function(data, path, callback) {
- data = normalizeData(data);
-
- switch (typeof path) {
- case 'function':
- callback = path;
- path = null;
- break;
- case 'string':
- data.path = path;
- break;
- }
-
- // Callback function is required.
- if (typeof callback !== 'function') {
- throw new TypeError('Invalid callback type: ' + typeof callback);
- }
-
- var completed = false;
- // `<canvas>` element only which the QR code is rendered.
- var cvs = this.canvas(data);
-
- // Simple function to try and ensure that the `callback` function is only called once.
- function done(error) {
- if (!completed) {
- completed = true;
-
- callback(error);
- }
- }
-
- if (inNode) {
- writeFile(cvs, data, done);
- } else {
- download(cvs, data, done);
- }
- },
-
- // Generate the QR code using the data provided and render it on to a `<canvas>` element and
- // save it as an image file.
- // If no `<canvas>` element is specified in the argument provided a new one will be created and
- // used.
- // ECC (error correction capacity) determines how many intential errors are contained in the QR
- // code.
- // If called in a browser the `path` property/argument is ignored and will simply prompt the
- // user to choose a location and file name. However, if called within node.js the file will be
- // saved to specified path.
- saveSync: function(data, path) {
- data = normalizeData(data);
-
- if (typeof path === 'string') data.path = path;
-
- // `<canvas>` element only which the QR code is rendered.
- var cvs = this.canvas(data);
-
- if (inNode) {
- writeFileSync(cvs, data);
- } else {
- download(cvs, data);
- }
- },
-
- // Generate the QR code using the data provided and render it on to a `<canvas>` element before
- // returning its data URI.
- // If no `<canvas>` element is specified in the argument provided a new one will be created and
- // used.
- // ECC (error correction capacity) determines how many intential errors are contained in the QR
- // code.
- toDataURL: function(data) {
- data = normalizeData(data);
-
- return this.canvas(data).toDataURL(data.mime || DEFAULT_MIME);
- },
-
- // Utility functions
- // -----------------
-
- // Run qr.js in *noConflict* mode, returning the `qr` variable to its previous owner.
- // Returns a reference to `qr`.
- noConflict: function() {
- root.qr = previousQr;
- return this;
- }
-
- };
-
- // Support
- // -------
-
- // Export `qr` for node.js and CommonJS.
- if (typeof exports !== 'undefined') {
- inNode = true;
-
- if (typeof module !== 'undefined' && module.exports) {
- exports = module.exports = qr;
- }
- exports.qr = qr;
-
- // Import required node.js modules.
- Canvas = require('canvas');
- Image = Canvas.Image;
- fs = require('fs');
- } else if (typeof define === 'function' && define.amd) {
- define(function () {
- return qr;
- });
- } else {
- // In non-HTML5 browser so strip base functionality.
- if (!root.HTMLCanvasElement) {
- overrideAPI(qr);
- }
-
- root.qr = qr;
- }
-
-})(this);
+++ /dev/null
-/*! qr-js v1.1.3 | (c) 2014 Alasdair Mercer | GPL v3 License
-jsqrencode | (c) 2010 tz@execpc.com | GPL v3 License
-*/
-!function(a){"use strict";function b(){return T?new r:a.document.createElement("canvas")}function c(){return T?new x:a.document.createElement("img")}function d(b,c,d){var e=c.mime||B;a.location.href=b.toDataURL(e).replace(e,C),"function"==typeof d&&d()}function e(a){return"string"==typeof a&&(a={value:a}),a||{}}function f(a){function b(b){a[b]=function(){throw new Error(b+" requires HTML5 canvas element support")}}var c,d=["canvas","image","save","saveSync","toDataURL"];for(c=0;c<d.length;c++)b(d[c])}function g(a,b,c){function d(){w.write(e,f,0,f.length,0,function(a){w.close(e),c(a)})}if("string"!=typeof b.path)return c(new TypeError("Invalid path type: "+typeof b.path));var e,f;a.toBuffer(function(a,b){return a?c(a):(f=b,void(e&&d()))}),w.open(b.path,"w",N,function(a,b){return a?c(a):(e=b,void(f&&d()))})}function h(a,b){if("string"!=typeof b.path)throw new TypeError("Invalid path type: "+typeof b.path);var c=a.toBuffer(),d=w.openSync(b.path,"w",N);try{w.writeSync(d,c,0,c.length,0)}finally{w.closeSync(d)}}function i(a,b){var c;a>b&&(c=a,a=b,b=c),c=b,c*=b,c+=b,c>>=1,c+=a,S[c]=1}function j(a,b){var c;for(R[a+z*b]=1,c=-2;2>c;c++)R[a+c+z*(b-2)]=1,R[a-2+z*(b+c+1)]=1,R[a+2+z*(b+c)]=1,R[a+c+1+z*(b+2)]=1;for(c=0;2>c;c++)i(a-1,b+c),i(a+1,b-c),i(a-c,b-1),i(a+c,b+1)}function k(a){for(;a>=255;)a-=255,a=(a>>8)+(255&a);return a}function l(a,b,c,d){var e,f,g;for(f=0;d>f;f++)W[c+f]=0;for(f=0;b>f;f++){if(e=H[W[a+f]^W[c]],255!==e)for(g=1;d>g;g++)W[c+g-1]=W[c+g]^G[k(e+U[d-g])];else for(g=c;c+d>g;g++)W[g]=W[g+1];W[c+d-1]=255===e?0:G[k(e+U[0])]}}function m(a,b){var c;return a>b&&(c=a,a=b,b=c),c=b,c+=b*b,c>>=1,c+=a,1===S[c]}function n(a){var b,c,d,e;switch(a){case 0:for(c=0;z>c;c++)for(b=0;z>b;b++)b+c&1||m(b,c)||(R[b+c*z]^=1);break;case 1:for(c=0;z>c;c++)for(b=0;z>b;b++)1&c||m(b,c)||(R[b+c*z]^=1);break;case 2:for(c=0;z>c;c++)for(d=0,b=0;z>b;b++,d++)3===d&&(d=0),d||m(b,c)||(R[b+c*z]^=1);break;case 3:for(e=0,c=0;z>c;c++,e++)for(3===e&&(e=0),d=e,b=0;z>b;b++,d++)3===d&&(d=0),d||m(b,c)||(R[b+c*z]^=1);break;case 4:for(c=0;z>c;c++)for(d=0,e=c>>1&1,b=0;z>b;b++,d++)3===d&&(d=0,e=!e),e||m(b,c)||(R[b+c*z]^=1);break;case 5:for(e=0,c=0;z>c;c++,e++)for(3===e&&(e=0),d=0,b=0;z>b;b++,d++)3===d&&(d=0),(b&c&1)+!(!d|!e)||m(b,c)||(R[b+c*z]^=1);break;case 6:for(e=0,c=0;z>c;c++,e++)for(3===e&&(e=0),d=0,b=0;z>b;b++,d++)3===d&&(d=0),(b&c&1)+(d&&d===e)&1||m(b,c)||(R[b+c*z]^=1);break;case 7:for(e=0,c=0;z>c;c++,e++)for(3===e&&(e=0),d=0,b=0;z>b;b++,d++)3===d&&(d=0),(d&&d===e)+(b+c&1)&1||m(b,c)||(R[b+c*z]^=1)}}function o(a){var b,c=0;for(b=0;a>=b;b++)O[b]>=5&&(c+=I+O[b]-5);for(b=3;a-1>b;b+=2)O[b-2]===O[b+2]&&O[b+2]===O[b-1]&&O[b-1]===O[b+1]&&3*O[b-1]===O[b]&&(0===O[b-3]||b+3>a||3*O[b-3]>=4*O[b]||3*O[b+3]>=4*O[b])&&(c+=K);return c}function p(){var a,b,c,d,e,f,g,h,i;for(c=e=f=0,i=0;z-1>i;i++)for(h=0;z-1>h;h++)(R[h+z*i]&&R[h+1+z*i]&&R[h+z*(i+1)]&&R[h+1+z*(i+1)]||!(R[h+z*i]||R[h+1+z*i]||R[h+z*(i+1)]||R[h+1+z*(i+1)]))&&(c+=J);for(i=0;z>i;i++){for(O[0]=0,g=a=h=0;z>h;h++)(b=R[h+z*i])===a?O[g]++:O[++g]=1,a=b,e+=a?1:-1;c+=o(g)}for(0>e&&(e=-e),d=e,d+=d<<2,d<<=1;d>z*z;)d-=z*z,f++;for(c+=f*L,h=0;z>h;h++){for(O[0]=0,g=a=i=0;z>i;i++)(b=R[h+z*i])===a?O[g]++:O[++g]=1,a=b;c+=o(g)}return c}function q(a){var b,c,d,e,f,g,h,o;f=a.length,y=0;do if(y++,d=4*(Q-1)+16*(y-1),u=D[d++],v=D[d++],s=D[d++],t=D[d],d=s*(u+v)+v-3+(9>=y),d>=f)break;while(40>y);for(z=17+4*y,g=s+(s+t)*(u+v)+v,f=0;g>f;f++)P[f]=0;for(W=a.slice(0),f=0;z*z>f;f++)R[f]=0;for(f=0;(z*(z+1)+1)/2>f;f++)S[f]=0;for(f=0;3>f;f++){for(d=o=0,1===f&&(d=z-7),2===f&&(o=z-7),R[o+3+z*(d+3)]=1,h=0;6>h;h++)R[o+h+z*d]=1,R[o+z*(d+h+1)]=1,R[o+6+z*(d+h)]=1,R[o+h+1+z*(d+6)]=1;for(h=1;5>h;h++)i(o+h,d+1),i(o+1,d+h+1),i(o+5,d+h),i(o+h+1,d+5);for(h=2;4>h;h++)R[o+h+z*(d+2)]=1,R[o+2+z*(d+h+1)]=1,R[o+4+z*(d+h)]=1,R[o+h+1+z*(d+4)]=1}if(y>1)for(f=A[y],o=z-7;;){for(h=z-7;h>f-3&&(j(h,o),!(f>h));)h-=f;if(f+9>=o)break;o-=f,j(6,o),j(o,6)}for(R[8+z*(z-8)]=1,o=0;7>o;o++)i(7,o),i(z-8,o),i(7,o+z-7);for(h=0;8>h;h++)i(h,7),i(h+z-8,7),i(h,z-8);for(h=0;9>h;h++)i(h,8);for(h=0;8>h;h++)i(h+z-8,8),i(8,h);for(o=0;7>o;o++)i(8,o+z-7);for(h=0;z-14>h;h++)1&h?(i(8+h,6),i(6,8+h)):(R[8+h+6*z]=1,R[6+z*(8+h)]=1);if(y>6)for(f=M[y-7],d=17,h=0;6>h;h++)for(o=0;3>o;o++,d--)1&(d>11?y>>d-12:f>>d)?(R[5-h+z*(2-o+z-11)]=1,R[2-o+z-11+z*(5-h)]=1):(i(5-h,2-o+z-11),i(2-o+z-11,5-h));for(o=0;z>o;o++)for(h=0;o>=h;h++)R[h+z*o]&&i(h,o);for(g=W.length,b=0;g>b;b++)P[b]=W.charCodeAt(b);if(W=P.slice(0),h=s*(u+v)+v,g>=h-2&&(g=h-2,y>9&&g--),b=g,y>9){for(W[b+2]=0,W[b+3]=0;b--;)f=W[b],W[b+3]|=255&f<<4,W[b+2]=f>>4;W[2]|=255&g<<4,W[1]=g>>4,W[0]=64|g>>12}else{for(W[b+1]=0,W[b+2]=0;b--;)f=W[b],W[b+2]|=255&f<<4,W[b+1]=f>>4;W[1]|=255&g<<4,W[0]=64|g>>4}for(b=g+3-(10>y);h>b;)W[b++]=236,W[b++]=17;for(U[0]=1,b=0;t>b;b++){for(U[b+1]=1,c=b;c>0;c--)U[c]=U[c]?U[c-1]^G[k(H[U[c]]+b)]:U[c-1];U[0]=G[k(H[U[0]]+b)]}for(b=0;t>=b;b++)U[b]=H[U[b]];for(d=h,o=0,b=0;u>b;b++)l(o,s,d,t),o+=s,d+=t;for(b=0;v>b;b++)l(o,s+1,d,t),o+=s+1,d+=t;for(o=0,b=0;s>b;b++){for(c=0;u>c;c++)P[o++]=W[b+c*s];for(c=0;v>c;c++)P[o++]=W[u*s+b+c*(s+1)]}for(c=0;v>c;c++)P[o++]=W[u*s+b+c*(s+1)];for(b=0;t>b;b++)for(c=0;u+v>c;c++)P[o++]=W[h+b+c*t];for(W=P,h=o=z-1,d=g=1,e=(s+t)*(u+v)+v,b=0;e>b;b++)for(f=W[b],c=0;8>c;c++,f<<=1){128&f&&(R[h+z*o]=1);do g?h--:(h++,d?0!==o?o--:(h-=2,d=!d,6===h&&(h--,o=9)):o!==z-1?o++:(h-=2,d=!d,6===h&&(h--,o-=8))),g=!g;while(m(h,o))}for(W=R.slice(0),f=0,o=3e4,d=0;8>d&&(n(d),h=p(),o>h&&(o=h,f=d),7!==f);d++)R=W.slice(0);for(f!==d&&n(f),o=F[f+(Q-1<<3)],d=0;8>d;d++,o>>=1)1&o&&(R[z-1-d+8*z]=1,6>d?R[8+z*d]=1:R[8+z*(d+1)]=1);for(d=0;7>d;d++,o>>=1)1&o&&(R[8+z*(z-7+d)]=1,d?R[6-d+8*z]=1:R[7+8*z]=1);return R}var r,s,t,u,v,w,x,y,z,A=[0,11,15,19,23,27,31,16,18,20,22,24,26,28,20,22,24,24,26,28,28,22,24,24,26,26,28,28,24,24,26,26,26,28,28,24,26,26,26,28,28],B="image/png",C="image/octet-stream",D=[1,0,19,7,1,0,16,10,1,0,13,13,1,0,9,17,1,0,34,10,1,0,28,16,1,0,22,22,1,0,16,28,1,0,55,15,1,0,44,26,2,0,17,18,2,0,13,22,1,0,80,20,2,0,32,18,2,0,24,26,4,0,9,16,1,0,108,26,2,0,43,24,2,2,15,18,2,2,11,22,2,0,68,18,4,0,27,16,4,0,19,24,4,0,15,28,2,0,78,20,4,0,31,18,2,4,14,18,4,1,13,26,2,0,97,24,2,2,38,22,4,2,18,22,4,2,14,26,2,0,116,30,3,2,36,22,4,4,16,20,4,4,12,24,2,2,68,18,4,1,43,26,6,2,19,24,6,2,15,28,4,0,81,20,1,4,50,30,4,4,22,28,3,8,12,24,2,2,92,24,6,2,36,22,4,6,20,26,7,4,14,28,4,0,107,26,8,1,37,22,8,4,20,24,12,4,11,22,3,1,115,30,4,5,40,24,11,5,16,20,11,5,12,24,5,1,87,22,5,5,41,24,5,7,24,30,11,7,12,24,5,1,98,24,7,3,45,28,15,2,19,24,3,13,15,30,1,5,107,28,10,1,46,28,1,15,22,28,2,17,14,28,5,1,120,30,9,4,43,26,17,1,22,28,2,19,14,28,3,4,113,28,3,11,44,26,17,4,21,26,9,16,13,26,3,5,107,28,3,13,41,26,15,5,24,30,15,10,15,28,4,4,116,28,17,0,42,26,17,6,22,28,19,6,16,30,2,7,111,28,17,0,46,28,7,16,24,30,34,0,13,24,4,5,121,30,4,14,47,28,11,14,24,30,16,14,15,30,6,4,117,30,6,14,45,28,11,16,24,30,30,2,16,30,8,4,106,26,8,13,47,28,7,22,24,30,22,13,15,30,10,2,114,28,19,4,46,28,28,6,22,28,33,4,16,30,8,4,122,30,22,3,45,28,8,26,23,30,12,28,15,30,3,10,117,30,3,23,45,28,4,31,24,30,11,31,15,30,7,7,116,30,21,7,45,28,1,37,23,30,19,26,15,30,5,10,115,30,19,10,47,28,15,25,24,30,23,25,15,30,13,3,115,30,2,29,46,28,42,1,24,30,23,28,15,30,17,0,115,30,10,23,46,28,10,35,24,30,19,35,15,30,17,1,115,30,14,21,46,28,29,19,24,30,11,46,15,30,13,6,115,30,14,23,46,28,44,7,24,30,59,1,16,30,12,7,121,30,12,26,47,28,39,14,24,30,22,41,15,30,6,14,121,30,6,34,47,28,46,10,24,30,2,64,15,30,17,4,122,30,29,14,46,28,49,10,24,30,24,46,15,30,4,18,122,30,13,32,46,28,48,14,24,30,42,32,15,30,20,4,117,30,40,7,47,28,43,22,24,30,10,67,15,30,19,6,118,30,18,31,47,28,34,34,24,30,20,61,15,30],E={L:1,M:2,Q:3,H:4},F=[30660,29427,32170,30877,26159,25368,27713,26998,21522,20773,24188,23371,17913,16590,20375,19104,13663,12392,16177,14854,9396,8579,11994,11245,5769,5054,7399,6608,1890,597,3340,2107],G=[1,2,4,8,16,32,64,128,29,58,116,232,205,135,19,38,76,152,45,90,180,117,234,201,143,3,6,12,24,48,96,192,157,39,78,156,37,74,148,53,106,212,181,119,238,193,159,35,70,140,5,10,20,40,80,160,93,186,105,210,185,111,222,161,95,190,97,194,153,47,94,188,101,202,137,15,30,60,120,240,253,231,211,187,107,214,177,127,254,225,223,163,91,182,113,226,217,175,67,134,17,34,68,136,13,26,52,104,208,189,103,206,129,31,62,124,248,237,199,147,59,118,236,197,151,51,102,204,133,23,46,92,184,109,218,169,79,158,33,66,132,21,42,84,168,77,154,41,82,164,85,170,73,146,57,114,228,213,183,115,230,209,191,99,198,145,63,126,252,229,215,179,123,246,241,255,227,219,171,75,150,49,98,196,149,55,110,220,165,87,174,65,130,25,50,100,200,141,7,14,28,56,112,224,221,167,83,166,81,162,89,178,121,242,249,239,195,155,43,86,172,69,138,9,18,36,72,144,61,122,244,245,247,243,251,235,203,139,11,22,44,88,176,125,250,233,207,131,27,54,108,216,173,71,142,0],H=[255,0,1,25,2,50,26,198,3,223,51,238,27,104,199,75,4,100,224,14,52,141,239,129,28,193,105,248,200,8,76,113,5,138,101,47,225,36,15,33,53,147,142,218,240,18,130,69,29,181,194,125,106,39,249,185,201,154,9,120,77,228,114,166,6,191,139,98,102,221,48,253,226,152,37,179,16,145,34,136,54,208,148,206,143,150,219,189,241,210,19,92,131,56,70,64,30,66,182,163,195,72,126,110,107,58,40,84,250,133,186,61,202,94,155,159,10,21,121,43,78,212,229,172,115,243,167,87,7,112,192,247,140,128,99,13,103,74,222,237,49,197,254,24,227,165,153,119,38,184,180,124,17,68,146,217,35,32,137,46,55,63,209,91,149,188,207,205,144,135,151,178,220,252,190,97,242,86,211,171,20,42,93,158,132,60,57,83,71,109,65,162,31,45,67,216,183,123,164,118,196,23,73,236,127,12,111,246,108,161,59,82,41,157,85,170,251,96,134,177,187,204,62,90,203,89,95,176,156,169,160,81,11,245,22,235,122,117,44,215,79,174,213,233,230,231,173,232,116,214,244,234,168,80,88,175],I=3,J=3,K=40,L=10,M=[3220,1468,2713,1235,3062,1890,2119,1549,2344,2936,1117,2583,1330,2470,1667,2249,2028,3780,481,4011,142,3098,831,3445,592,2517,1776,2234,1951,2827,1070,2660,1345,3177],N=parseInt("0666",8),O=[],P=[],Q=1,R=[],S=[],T=!1,U=[],V=a.qr,W=[],X={VERSION:"1.1.3",canvas:function(a){a=e(a);var c=a.size>=1&&a.size<=10?a.size:4;c*=25;var d=a.canvas||b(),f=d.getContext("2d");f.canvas.width=c,f.canvas.height=c,f.fillStyle=a.background||"#fff",f.fillRect(0,0,c,c),Q=E[a.level&&a.level.toUpperCase()||"L"];var g=q(a.value||"");f.lineWidth=1;var h=c;h/=z,h=Math.floor(h),f.clearRect(0,0,c,c),f.fillStyle=a.background||"#fff",f.fillRect(0,0,h*(z+8),h*(z+8)),f.fillStyle=a.foreground||"#000";var i,j;for(i=0;z>i;i++)for(j=0;z>j;j++)g[j*z+i]&&f.fillRect(h*i,h*j,h,h);return d},image:function(a){a=e(a);var b=this.canvas(a),d=a.image||c();return d.src=b.toDataURL(a.mime||B),d.height=b.height,d.width=b.width,d},save:function(a,b,c){function f(a){h||(h=!0,c(a))}switch(a=e(a),typeof b){case"function":c=b,b=null;break;case"string":a.path=b}if("function"!=typeof c)throw new TypeError("Invalid callback type: "+typeof c);var h=!1,i=this.canvas(a);T?g(i,a,f):d(i,a,f)},saveSync:function(a,b){a=e(a),"string"==typeof b&&(a.path=b);var c=this.canvas(a);T?h(c,a):d(c,a)},toDataURL:function(a){return a=e(a),this.canvas(a).toDataURL(a.mime||B)},noConflict:function(){return a.qr=V,this}};"undefined"!=typeof exports?(T=!0,"undefined"!=typeof module&&module.exports&&(exports=module.exports=X),exports.qr=X,r=require("canvas"),x=r.Image,w=require("fs")):"function"==typeof define&&define.amd?define(function(){return X}):(a.HTMLCanvasElement||f(X),a.qr=X)}(this);
-//# sourceMappingURL=qr.min.map
\ No newline at end of file
projects / github / shaarli / Shaarli.git / commitdiff
