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<!DOCTYPE HTML>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="canvas-display-p3.js"></script>
<body>
<script>
// Test that drawing videos with different color spaces into sRGB and Display P3
// canvases works, by reading pixels with getImageData() as sRGB and Display P3
// values.
for (let [filenameBase, expectedPixels] of Object.entries(videoTests)) {
for (let contextColorSpace of ["srgb", "display-p3"]) {
for (let imageDataColorSpace of ["srgb", "display-p3"]) {
for (let scaleImage of [false, true]) {
promise_test(async function(t) {
let video = document.createElement("video");
for (let format of ["mp4", "webm"]) {
let source = document.createElement("source");
source.src = `resources/${filenameBase}.${format}`;
source.type = `video/${format}`;
video.append(source);
}
let loadedData = new Promise(resolver => video.onloadeddata = resolver);
document.body.append(video);
await video.play();
await loadedData;
await new Promise(requestAnimationFrame);
let canvas = document.createElement("canvas");
canvas.width = 2;
canvas.height = 2;
let ctx = canvas.getContext("2d", { colorSpace: contextColorSpace });
if (scaleImage)
ctx.drawImage(video, 0, 0, 10, 10);
else
ctx.drawImage(video, 0, 0);
video.remove();
let imageData = ctx.getImageData(0, 0, 1, 1, { colorSpace: imageDataColorSpace });
let expected = expectedPixels[`${contextColorSpace} ${imageDataColorSpace}`];
assert_true(pixelsApproximatelyEqual(imageData.data, expected), `Actual pixel value ${[...imageData.data]} is approximately equal to ${expected}.`);
}, `${filenameBase}, Context ${contextColorSpace}, ImageData ${imageDataColorSpace}, scaleImage=${scaleImage}`);
}
}
}
}
</script>
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