How to set colorSpace in WebGPU？

[seven332]

WebGPU supports colorSpace in GPUCanvasContext.configure() method.
https://developer.mozilla.org/en-US/docs/Web/API/GPUCanvasContext/configure#colorspace

But emscripten doesn't seem to support it.

emscripten/src/library_webgpu.js

Line 2788 in 63b8a7c

context.configure(configuration);

[sbc100]

@kainino0x

[kainino0x]

It is missing in Emscripten's version of webgpu.h right now. If you need it, we can patch it in, but otherwise it will be supported in some months when we complete the stabilization of webgpu.h and bring in the updated Emscripten bindings implementation (currently being worked on in Dawn as "emdawnwebgpu").

[seven332]

Thanks for the reply. I'm porting a design tool from WebGL to WebGPU which supports P3 color space. I would be grateful if the patch is available.

[kainino0x]

Thanks for letting me know. Unfortunately it will probably be a few weeks before I can work on it.
In the meantime it should be possible to call configure() from javascript directly, via EM_ASM and using the jsvalstore API (see here) though note that it will break and be replaced by a similar-but-different API for js-wasm interop, along with all the rest of our breaking changes for webgpu.h.

[seven332]

Wow, EM_ASM + jsvalstore work like a charm.