46 lines
1.5 KiB
HTML
46 lines
1.5 KiB
HTML
<!DOCTYPE html>
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<body>
|
|
<canvas id='canvas0' width=10 height=10></canvas>
|
|
<canvas id='canvas1' width=10 height=10></canvas>
|
|
</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>
|