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{"version":3,"file":"qr-scanner-worker.min.js","sources":["node_modules/jsqr-es6/src/BitMatrix.ts","node_modules/jsqr-es6/src/binarizer/index.ts","node_modules/jsqr-es6/src/decoder/decodeData/BitStream.ts","node_modules/jsqr-es6/src/decoder/decodeData/index.ts","node_modules/jsqr-es6/src/decoder/reedsolomon/GenericGFPoly.ts","node_modules/jsqr-es6/src/decoder/reedsolomon/GenericGF.ts","node_modules/jsqr-es6/src/decoder/reedsolomon/index.ts","node_modules/jsqr-es6/src/decoder/version.ts","node_modules/jsqr-es6/src/decoder/decoder.ts","node_modules/jsqr-es6/src/extractor/index.ts","node_modules/jsqr-es6/src/locator/index.ts","node_modules/jsqr-es6/src/index.ts","src/worker.ts"],"sourcesContent":["export class BitMatrix {\n public static createEmpty(width: number, height: number) {\n return new BitMatrix(new Uint8ClampedArray(width * height), width);\n }\n\n public width: number;\n public height: number;\n private data: Uint8ClampedArray;\n\n constructor(data: Uint8ClampedArray, width: number) {\n this.width = width;\n this.height = data.length / width;\n this.data = data;\n }\n\n public get(x: number, y: number): boolean {\n if (x < 0 || x >= this.width || y < 0 || y >= this.height) {\n return false;\n }\n return !!this.data[y * this.width + x];\n }\n\n public set(x: number, y: number, v: boolean) {\n this.data[y * this.width + x] = v ? 1 : 0;\n }\n\n public setRegion(left: number, top: number, width: number, height: number, v: boolean) {\n for (let y = top; y < top + height; y++) {\n for (let x = left; x < left + width; x++) {\n this.set(x, y, !!v);\n }\n }\n }\n}\n","import {BitMatrix} from \"../BitMatrix\";\nimport {GreyscaleWeights} from \"../index\";\n\nconst REGION_SIZE = 8;\nconst MIN_DYNAMIC_RANGE = 24;\n\nfunction numBetween(value: number, min: number, max: number): number {\n return value < min ? min : value > max ? max : value;\n}\n\n// Like BitMatrix but accepts arbitry Uint8 values\nclass Matrix {\n private data: Uint8ClampedArray;\n private width: number;\n constructor(width: number, height: number, buffer?: Uint8ClampedArray) {\n this.width = width;\n const bufferSize = width * height;\n if (buffer && buffer.length !== bufferSize) {\n throw new Error(\"Wrong buffer size\");\n }\n this.data = buffer || new Uint8ClampedArray(bufferSize);\n }\n public get(x: number, y: number) {\n return this.data[y * this.width + x];\n }\n public set(x: number, y: number, value: number) {\n this.data[y * this.width + x] = value;\n }\n}\n\nexport function binarize(data: Uint8ClampedArray, width: number, height: number, returnInverted: boolean,\n greyscaleWeights: GreyscaleWeights, canOverwriteImage: boolean) {\n const pixelCount = width * height;\n if (data.length !== pixelCount * 4) {\n throw new Error(\"Malformed data passed to binarizer.\");\n }\n // assign the greyscale and binary image within the rgba buffer as the rgba image will not be needed after conversion\n let bufferOffset = 0;\n // Convert image to greyscale\n let greyscaleBuffer: Uint8ClampedArray;\n if (canOverwriteImage) {\n greyscaleBuffer = new Uint8ClampedArray(data.buffer, bufferOffset, pixelCount);\n bufferOffset += pixelCount;\n }\n const greyscalePixels = new Matrix(width, height, greyscaleBuffer);\n if (greyscaleWeights.useIntegerApproximation) {\n for (let y = 0; y < height; y++) {\n for (let x = 0; x < width; x++) {\n const pixelPosition = (y * width + x) * 4;\n const r = data[pixelPosition];\n const g = data[pixelPosition + 1];\n const b = data[pixelPosition + 2];\n greyscalePixels.set(x, y,\n // tslint:disable-next-line no-bitwise\n (greyscaleWeights.red * r + greyscaleWeights.green * g + greyscaleWeights.blue * b + 128) >> 8);\n }\n }\n } else {\n for (let y = 0; y < height; y++) {\n for (let x = 0; x < width; x++) {\n const pixelPosition = (y * width + x) * 4;\n const r = data[pixelPosition];\n const g = data
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