2024-07-06 11:36:07 +04:00
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>QR code data XOR mask</title>
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<link rel="stylesheet" href="style.css">
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<script src="script.js"></script>
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</head>
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<body>
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<div id="options">
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<select id="mask-expr">
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<option value="(row+col)%2" selected>Mask 0-000 | (i + j) mod 2 = 0</option>
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<option value="row%2">Mask 1-001 | i mod 2</option>
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<option value="col%3">Mask 2-010 | j mod 3</option>
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<option value="(row+col)%3">Mask 3-011 | (i + j) mod 3</option>
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2024-07-08 12:07:38 +04:00
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<option value="(intDiv(row,2)+intDiv(col,3))%2">Mask 4-100 | (i : 2 + j : 3) mod 2</option>
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2024-07-06 11:36:07 +04:00
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<option value="(row*col)%2+(row*col)%3">Mask 5-101 | (i × j) mod 2 + (i × j) mod 3</option>
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<option value="((row*col)%2+(row*col)%3)%2">Mask 6-110 | ((i × j) mod 2 + (i × j) mod 3) mod 2</option>
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<option value="((row+col)%2+(row*col)%3)%2">Mask 7-111 | ((i + j) mod 2 + (i × j) mod 3) mod 2</option>
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</select>
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<label for="width" id="width-wrapper">
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<span>Width:</span>
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<input id="width" type="number" min="21" max="177" step="4" value="25">
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<button id="width-incr">+</button>
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<button id="width-decr">–</button>
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<b>version <span id="version">2</span></b>
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</label>
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<label for="scale">
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<span>Scale:</span>
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<input id="scale" type="number" min="1" value="40">
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px per module
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</label>
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<button id="gen-btn">Generate</button>
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</div>
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<div>
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<canvas id="canvas" width="1" height="1"></canvas>
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</div>
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</body>
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</html>
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