2d.imageData.put.cross.html (1145B)
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>OffscreenCanvas test: 2d.imageData.put.cross</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 9 <h1>2d.imageData.put.cross</h1> 10 <p class="desc">putImageData() accepts image data got from a different canvas</p> 11 12 13 <script> 14 var t = async_test("putImageData() accepts image data got from a different canvas"); 15 var t_pass = t.done.bind(t); 16 var t_fail = t.step_func(function(reason) { 17 throw reason; 18 }); 19 t.step(function() { 20 21 var canvas = new OffscreenCanvas(100, 50); 22 var ctx = canvas.getContext('2d'); 23 24 var offscreenCanvas2 = new OffscreenCanvas(100, 50); 25 var ctx2 = offscreenCanvas2.getContext('2d'); 26 ctx2.fillStyle = '#0f0'; 27 ctx2.fillRect(0, 0, 100, 50) 28 var imgdata = ctx2.getImageData(0, 0, 100, 50); 29 ctx.fillStyle = '#f00'; 30 ctx.fillRect(0, 0, 100, 50) 31 ctx.putImageData(imgdata, 0, 0); 32 _assertPixelApprox(canvas, 50,25, 0,255,0,255, 2); 33 t.done(); 34 35 }); 36 </script>