2d.composite.uncovered.pattern.source-out.html (1623B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <meta charset="UTF-8"> 4 <title>Canvas test: 2d.composite.uncovered.pattern.source-out</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/html/canvas/resources/canvas-tests.js"></script> 8 <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> 9 <body class="show_output"> 10 11 <h1>2d.composite.uncovered.pattern.source-out</h1> 12 <p class="desc">Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged.</p> 13 14 15 <p class="output">Actual output:</p> 16 <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 17 <p class="output expectedtext">Expected output:<p><img src="2d.composite.uncovered.pattern.source-out.png" class="output expected" id="expected" alt=""> 18 <ul id="d"></ul> 19 <script> 20 promise_test(async t => { 21 22 var canvas = document.getElementById('c'); 23 var ctx = canvas.getContext('2d'); 24 25 ctx.fillStyle = 'rgba(0, 255, 255, 0.5)'; 26 ctx.fillRect(0, 0, 100, 50); 27 ctx.globalCompositeOperation = 'source-out'; 28 const response = await fetch('/images/yellow.png') 29 const blob = await response.blob(); 30 const bitmap = await createImageBitmap(blob); 31 ctx.fillStyle = ctx.createPattern(bitmap, 'no-repeat'); 32 ctx.fillRect(0, 50, 100, 50); 33 _assertPixelApprox(canvas, 50,25, 0,0,0,0, 5); 34 35 }, "Pattern fill() draws pixels not covered by the source object as (0,0,0,0), and does not leave the pixels unchanged."); 36 </script>