jpegxl

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WPT coverage of the tests of jpegxl at the revision 5602b0f210e3. The tests link to their results in the browsers on wpt.fyi. The tentative tests (experimental features) and the reftests are listed separately from the stable tests.

Group	Passing	Tests	Pass rate
Stable	9	12	75%
Tentative	0	0	–
Reftests	34	51	67%
All	43	63	68%

Failure reasons

The tests that do not pass (failing or disabled), by kind of reason. A test with several reasons counts once per kind.

BUG: 4
NOT IMPLEMENTED: 16

Stable tests

Test	Result	Subtests	Kind	Description
`alpha-vardct.html`	Pass	1 / 1
`canvas-decode-paths-webgpu.https.html`	Pass	1 / 1
`css-image-usage.html`	Pass	1 / 1
`hdr-pq-intensity-target.html`	Fail	1 / 2	NOT IMPLEMENTED	1 of 2 subtests: the `intensity_target` of a PQ image as the peak of its tone mapping: Meziantou.Framework.Imaging reads it but does not report it, so the PQ images without content light level are tone mapped from the peak of PQ (10,000 cd/m2), and the image that states a peak of 600 cd/m2 is not brighter than the one that states 10,000 cd/m2
`html-img.html`	Pass	2 / 2
`html-input-image.html`	Pass	1 / 1
`html-preload-image.html`	Pass	1 / 1
`imagedecoder-animation.https.html`	Fail	0 / 4	NOT IMPLEMENTED	the `ImageDecoder` of WebCodecs
`imagedecoder.https.html`	Fail	0 / 1	NOT IMPLEMENTED	the `ImageDecoder` of WebCodecs
`lossless-jpeg-transcode.html`	Pass	1 / 1
`modular-lossy.html`	Pass	1 / 1
`svg-image-element.html`	Pass	1 / 1

Reftests

Test	Result	Variants	Kind	Description
`3x3_jpeg_recompression.html`	Pass	1 / 1
`3x3_srgb_lossless.html`	Pass	1 / 1
`3x3_srgb_lossy.html`	Pass	1 / 1
`3x3a_srgb_lossless.html`	Pass	1 / 1
`3x3a_srgb_lossy.html`	Pass	1 / 1
`alpha-decode-reftest.html`	Pass	1 / 1
`alpha-modular-reftest.html`	Pass	1 / 1
`animated-img-timeout.html`	Pass	1 / 1
`basic-decode-reftest.html`	Pass	1 / 1
`bitdepth-10bpc-reftest.html`	Pass	1 / 1
`bitdepth-12bpc-reftest.html`	Pass	1 / 1
`bitdepth-16bpc-reftest.html`	Pass	1 / 1
`bitdepth-8bpc-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the `gAMA` and `cHRM` chunks of a PNG image without ICC profile, whose colors are sRGB: the reference `3x3_srgb_lossless.png` declares a gamma of 2.2 that is not applied, while the JPEG XL image declares the same color encoding (sRGB primaries, gamma 2.2), which is converted to sRGB: their dark colors are up to 2 levels apart, and the test has no tolerance
`canvas-decode-paths.html`	Pass	1 / 1
`cmyk-basic-conversion-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the JPEG XL images with a black channel (CMYK): Meziantou.Framework.Imaging does not decode them, so the image is broken
`color-management-p3-cicp-reftest.html`	Pass	1 / 1
`conformance-alpha-premultiplied-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the JPEG XL images whose alpha is premultiplied: Meziantou.Framework.Imaging does not decode them, so the image is broken
`css-background-image.html`	Fail	0 / 1	NOT IMPLEMENTED	the `gAMA` and `cHRM` chunks of a PNG image without ICC profile, whose colors are sRGB: the reference `3x3_srgb_lossless.png` declares a gamma of 2.2 that is not applied, while the JPEG XL image declares the same color encoding (sRGB primaries, gamma 2.2), which is converted to sRGB: their dark colors are up to 2 levels apart, and the test has no tolerance
`css-before-content.html`	Fail	0 / 1	NOT IMPLEMENTED	the `gAMA` and `cHRM` chunks of a PNG image without ICC profile, whose colors are sRGB: the reference `3x3_srgb_lossless.png` declares a gamma of 2.2 that is not applied, while the JPEG XL image declares the same color encoding (sRGB primaries, gamma 2.2), which is converted to sRGB: their dark colors are up to 2 levels apart, and the test has no tolerance
`css-image-set.html`	Fail	0 / 1	NOT IMPLEMENTED	the `gAMA` and `cHRM` chunks of a PNG image without ICC profile, whose colors are sRGB: the reference `3x3_srgb_lossless.png` declares a gamma of 2.2 that is not applied, while the JPEG XL image declares the same color encoding (sRGB primaries, gamma 2.2), which is converted to sRGB: their dark colors are up to 2 levels apart, and the test has no tolerance
`css-list-style-image.html`	Fail	0 / 1	NOT IMPLEMENTED	the `gAMA` and `cHRM` chunks of a PNG image without ICC profile, whose colors are sRGB: the reference `3x3_srgb_lossless.png` declares a gamma of 2.2 that is not applied, while the JPEG XL image declares the same color encoding (sRGB primaries, gamma 2.2), which is converted to sRGB: their dark colors are up to 2 levels apart, and the test has no tolerance
`gray-decode-reftest.html`	Pass	1 / 1
`gray-icc-reftest.html`	Pass	1 / 1
`green-decode-reftest.html`	Pass	1 / 1
`hdr-alpha-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the JPEG XL images whose samples are floating-point numbers: Meziantou.Framework.Imaging does not decode them, so the image is broken
`html-embed-object-iframe.html`	Pass	1 / 1
`html-video-poster.html`	Pass	1 / 1
`icc-uncommon-profile-reftest.html`	Pass	1 / 1
`jxl-art-basic-reftest.html`	Pass	1 / 1
`layers-basic-reftest.html`	Fail	0 / 1	BUG	the splines of `spline_on_first_frame.jxl` drawn by Meziantou.Framework.Imaging are up to 3 levels apart from the ones of the reference (decoded by libjxl) on 455 pixels; the test allows 1 level on 426 pixels
`modular-lossless-reftest.html`	Pass	1 / 1
`nonpremultiplied-alpha-grid-reftest.html`	Pass	1 / 1
`nonpremultiplied-gray-alpha-grid-reftest.html`	Pass	1 / 1
`orientation-codestream-vs-exif-reftest.html`	Pass	1 / 1
`orientation-identity-reftest.html`	Pass	1 / 1
`orientation-rotate-90-ccw-reftest.html`	Pass	1 / 1
`patches-reftest.html`	Pass	1 / 1
`premultiplied-alpha-grid-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the JPEG XL images whose alpha is premultiplied: Meziantou.Framework.Imaging does not decode them, so the image is broken
`premultiplied-gray-alpha-grid-reftest.html`	Fail	0 / 1	NOT IMPLEMENTED	the JPEG XL images whose alpha is premultiplied: Meziantou.Framework.Imaging does not decode them, so the image is broken
`progressive-1.html`	Fail	0 / 1	NOT IMPLEMENTED	the progressive rendering of a truncated JPEG XL image (the tests serve the first bytes of a progressive codestream and expect the image of its first passes): Meziantou.Framework.Imaging rejects a truncated codestream, so the image is broken
`progressive-2.html`	Fail	0 / 1	NOT IMPLEMENTED	the progressive rendering of a truncated JPEG XL image (the tests serve the first bytes of a progressive codestream and expect the image of its first passes): Meziantou.Framework.Imaging rejects a truncated codestream, so the image is broken
`progressive-3.html`	Fail	0 / 1	NOT IMPLEMENTED	the progressive rendering of a truncated JPEG XL image (the tests serve the first bytes of a progressive codestream and expect the image of its first passes): Meziantou.Framework.Imaging rejects a truncated codestream, so the image is broken
`progressive-dc-observable-reftest.html`	Pass	1 / 1
`sdr-alpha-reftest.html`	Pass	1 / 1
`smallest-valid-reftest.html`	Pass	1 / 1
`vardct-large-blocks-reftest.html`	Pass	1 / 1
`vardct-small-blocks-reftest.html`	Pass	1 / 1
`wide-gamut-adobe-rgb.html`	Fail	0 / 1	BUG	the stripe whose color is outside of the sRGB gamut: the colors of the image are converted to sRGB and clipped per channel, as in the browsers, while the CSS color of the reference is CSS gamut mapped (its OkLCh chroma is reduced), so they differ by up to 18 levels (the colors inside of the gamut match)
`wide-gamut-display-p3.html`	Fail	0 / 1	BUG	the stripe whose color is outside of the sRGB gamut: the colors of the image are converted to sRGB and clipped per channel, as in the browsers, while the CSS color of the reference is CSS gamut mapped (its OkLCh chroma is reduced), so they differ by up to 18 levels (the colors inside of the gamut match)
`wide-gamut-prophoto-rgb.html`	Pass	1 / 1
`wide-gamut-rec2020.html`	Fail	0 / 1	BUG	the stripe whose color is outside of the sRGB gamut: the colors of the image are converted to sRGB and clipped per channel, as in the browsers, while the CSS color of the reference is CSS gamut mapped (its OkLCh chroma is reduced), so they differ by up to 18 levels (the colors inside of the gamut match)