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LibWeb: Implement HTML::ImageBitmap creation from HTML::ImageData

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ayeteadoe 2025-06-22 01:15:23 -07:00 • committed by Andrew Kaster
commit 81ccb655b4
Notes: github-actions[bot] 2025-06-30 16:08:53 +00:00
7 changed files with 120 additions and 14 deletions
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25
Tests/LibWeb/Text/input/HTML/image-bitmap-from-detached-image-data-buffer.html Normal file
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<!DOCTYPE html>
<script src="../include.js"></script>
<script>
let canvas = document.createElement("canvas");
canvas.width = 1080;
canvas.height = 600;
const ctx = canvas.getContext("2d");
ctx.fillStyle = "rgb(42, 110, 96)";
ctx.fillRect(0, 0, 400, 300);
let imageData = ctx.getImageData(0, 0, 800, 600);
const buffer = imageData.data.buffer;
window.postMessage("", "*", [buffer]);
asyncTest(async done => {
try {
const result = await createImageBitmap(imageData);
println("Failed");
} catch (error) {
println(error.message);
}
done();
});
</script>

25
Tests/LibWeb/Text/input/HTML/image-bitmap-from-image-data.html Normal file
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<!DOCTYPE html>
<body>
<script src="../include.js"></script>
<script>
let canvas = document.createElement("canvas");
canvas.width = 20;
canvas.height = 20;
let ctx = canvas.getContext("2d");
ctx.fillStyle = "rgb(42, 110, 96)";
ctx.fillRect(0, 0, 10, 10);
let imageData = ctx.getImageData(0, 0, 20, 20);
asyncTest(async done => {
try {
const bitmap = await createImageBitmap(imageData);
println(`[Success]: ${bitmap}`);
} catch (err) {
println(`[ Error ]: ${err}`);
}
done();
});
</script>
</body>