| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <html class="reftest-wait"> |
| <link rel="match" href="2d.reset.render.global_composite_operation-expected.html"> |
| <title>Canvas test: 2d.reset.render.global_composite_operation</title> |
| <h1>2d.reset.render.global_composite_operation</h1> |
| <p class="desc">check that canvas correctly renders rectangles with the default global composite operation after reset</p> |
| <canvas id="canvas" width="400" height="400"> |
| <p class="fallback">FAIL (fallback content)</p> |
| </canvas> |
| <script id='myWorker' type='text/worker'> |
| self.onmessage = function(e) { |
| const canvas = new OffscreenCanvas(400, 400); |
| const ctx = canvas.getContext('2d'); |
| |
| ctx.globalCompositeOperation = "xor"; |
| |
| ctx.reset(); |
| |
| ctx.fillRect(10, 10, 100, 100); |
| ctx.fillRect(50, 50, 100, 100); |
| |
| const bitmap = canvas.transferToImageBitmap(); |
| self.postMessage(bitmap, bitmap); |
| }; |
| </script> |
| <script> |
| const blob = new Blob([document.getElementById('myWorker').textContent]); |
| const worker = new Worker(URL.createObjectURL(blob)); |
| worker.addEventListener('message', msg => { |
| const outputCtx = document.getElementById("canvas").getContext('2d'); |
| outputCtx.drawImage(msg.data, 0, 0); |
| document.documentElement.classList.remove("reftest-wait"); |
| }); |
| worker.postMessage(null); |
| </script> |
| </html> |