2d.drawImage.3arg.html (1258B)
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.drawImage.3arg</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.drawImage.3arg</h1> 10 <p class="desc"></p> 11 12 13 <script> 14 promise_test(async t => { 15 16 var canvas = new OffscreenCanvas(100, 50); 17 var ctx = canvas.getContext('2d'); 18 19 const response_red = await fetch('/images/red.png'); 20 const blob_red = await response_red.blob(); 21 const bitmap_red = await createImageBitmap(blob_red); 22 23 const response_green = await fetch('/images/green.png'); 24 const blob_green = await response_green.blob(); 25 const bitmap_green = await createImageBitmap(blob_green); 26 27 ctx.drawImage(bitmap_green, 0, 0); 28 ctx.drawImage(bitmap_red, -100, 0); 29 ctx.drawImage(bitmap_red, 100, 0); 30 ctx.drawImage(bitmap_red, 0, -50); 31 ctx.drawImage(bitmap_red, 0, 50); 32 _assertPixelApprox(canvas, 0,0, 0,255,0,255, 2); 33 _assertPixelApprox(canvas, 99,0, 0,255,0,255, 2); 34 _assertPixelApprox(canvas, 0,49, 0,255,0,255, 2); 35 _assertPixelApprox(canvas, 99,49, 0,255,0,255, 2); 36 37 }, ""); 38 </script>