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Explainer https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-texture-compression-unaligned Specification https://gpuweb.github.io/gpuweb/#dom-gpufeaturename-texture-compression-unaligned Summary Compressed texture (using the BC, ETC or ASTC formats) in unextended WebGPU must have a size that's a multiple of the block size (4x4 or up to 12x12). This is very constraining when compressing arbitrary images as a resizing step must happen which looses high-frequency information. Most hardware supports compressed textures with partial blocks at the border such that the textures can have any size, removing this issue. Blink component Blink>WebGPU Web Feature ID webgpu Motivation Compressed texture (using the BC, ETC or ASTC formats) in unextended WebGPU must have a size that's a multiple of the block size (4x4 or up to 12x12). This is very constraining when compressing arbitrary images as a resizing step must happen which looses high-frequency information. Most hardware supports compressed textures with partial blocks at the border such that the textures can have any size, removing this issue. Initial public proposal https://github.com/gpuweb/gpuweb/issues/2006 TAG review No information provided TAG review status Not applicable Goals for experimentation None Risks Interoperability and Compatibility This feature has been approved in W3C GPU for the Web WG meetings including participants from Safari and Firefox. Gecko: No signal (https://github.com/gpuweb/gpuweb/pull/6312) Implementation is ongoing https://github.com/gfx-rs/wgpu/pull/10247 Feedback indicated via WebGPU standardization process. WebKit: Positive (https://github.com/gpuweb/gpuweb/pull/6312) Specification approval constitutes a positive signal, per https://github.com/WebKit/standards-positions/issues/294#issuecomment-1877411933 Web developers: Positive (https://github.com/gpuweb/gpuweb/issues/2006#issuecomment-2910632703) Bevy, Unity, Spark.js positive about this feature. Other signals: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? No information provided Debuggability No information provided Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? Yes All platforms have support, where hardware support is available. Is this feature fully tested by web-platform-tests? Yes WebGPU/WGSL have a conformance test suite (https://github.com/gpuweb/cts) that is regularly pulled into Chromium and part of the testing of Dawn/Tint in Chromium. While the CTS can be embedded in WPT, the WebGPU team opted to keep it separate in Chromium testing to use a customized harness for robustness and performance. Flag name on about://flags No information provided Finch feature name WebGPUEnabledEnabledToggles Rollout plan Will ship enabled for all users Requires code in //chrome? False Tracking bug https://crbug.com/528245806 Estimated milestones No milestones specified Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (eg links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (eg, changing to naming or structure of the API in a non-backward-compatible way). No information provided Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5080544005193728?gate=6068538249969664 This intent message was generated by Chrome Platform Status. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6aad6a05.02452ce2.51883.00a1.GAE%40google.com.
