forked from mirrors/gecko-dev
58bc3a388f
Automatic update from web-platform-tests [webcodecs] Add HBD drawImage WPT test Bug: 40215121 Change-Id: I589155614f019d6351571ec9a038606ce30d89dc Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5538639 Commit-Queue: Dan Sanders <sandersd@chromium.org> Reviewed-by: Eugene Zemtsov <eugene@chromium.org> Cr-Commit-Position: refs/heads/main@{#1302097} -- wpt-commits: 3841d9c792cc60e7de4af80cef23060ed9090ea0 wpt-pr: 46260
31 lines
1.2 KiB
JavaScript
31 lines
1.2 KiB
JavaScript
// META: global=window,dedicatedworker
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// META: script=/webcodecs/utils.js
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test(_ => {
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let width = 48;
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let height = 36;
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let expectedPixel = kSRGBPixel;
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let canvasOptions = undefined;
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let imageSetting = undefined;
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let tolerance = 5;
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let vfInit =
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{format: 'I420P10', timestamp: 0, codedWidth: width, codedHeight: height};
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let data = new Uint16Array(3 * width * height / 2);
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let uOffset = width * height;
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let vOffset = uOffset + width * height / 4;
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// RGB(50, 100, 150) converted to 8-bit YCbCr using BT.709 YUV matrix, then
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// shifted to produce approximate 10-bit YUV colors. It would be more accurate
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// to directly compute 10-bit colors.
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data.fill(96 << 2, 0, uOffset);
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data.fill(155 << 2, uOffset, vOffset);
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data.fill(104 << 2, vOffset);
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let frame = new VideoFrame(data, vfInit);
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let canvas = new OffscreenCanvas(width, height);
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let ctx = canvas.getContext('2d', canvasOptions);
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ctx.drawImage(frame, 0, 0);
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testCanvas(ctx, width, height, expectedPixel, imageSetting,
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(actual, expected) => {
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assert_approx_equals(actual, expected, tolerance);
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});
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frame.close();
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}, 'drawImage with 10-bit YUV VideoFrame');
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