| <!DOCTYPE html> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <body> |
| <canvas id='canvas0' width=10 height=10/> |
| <canvas id='canvas1' width=10 height=10/> |
| </body> |
| <script> |
| |
| // This test verifies that ImageCapture can grabFrame()s. |
| |
| var test = async_test(function() { |
| var canvas0 = document.getElementById('canvas0'); |
| var context0 = canvas0.getContext("2d"); |
| context0.fillStyle = "red"; |
| context0.fillRect(0, 0, 10, 10); |
| |
| var stream = canvas0.captureStream(); |
| |
| var capturer = new ImageCapture(stream.getVideoTracks()[0]); |
| |
| capturer.grabFrame() |
| .then(bitmap => { |
| assert_equals(canvas0.width, bitmap.width); |
| assert_equals(canvas0.height, bitmap.height); |
| |
| var context1 = document.getElementById('canvas1').getContext("2d"); |
| context1.drawImage(bitmap, 0, 0); |
| |
| var imageData0 = context0.getImageData(0, 0, 10, 10); |
| var imageData1 = context1.getImageData(0, 0, 10, 10); |
| |
| assert_equals(imageData0.width, imageData1.width); |
| assert_equals(imageData0.height, imageData1.height); |
| assert_equals(imageData0.data.length, imageData1.data.length); |
| for (var i = 0; i < imageData0.data.length; i++) |
| assert_approx_equals(imageData0.data[i], imageData1.data[i], 5); |
| |
| this.done(); |
| }) |
| .catch(error => { |
| assert_unreached('Error during grabFrame(): '+ error); |
| }); |
| }, 'exercises the ImageCapture API creation and grabFrame().'); |
| |
| </script> |
