Test texture-compression-bc-sliced-3d

[mehmetoguzderin]

gpuweb/gpuweb#4705

webgpu:api,validation,texture,*, and also operation tests where applicable.

[kainino0x]

I think we also need to make sure we have basic sampling operation tests, as well as both validation and operation tests for copyTextureToTexture/TextureToBuffer/BufferToTexture and writeTexture.

[mehmetoguzderin]

@kainino0x Thank you very much for the guidance, I missed those aspects. I will follow-up with a PR for those tests, too! Appreciated!

[kainino0x]

@greggman since you just added 2d compressed texture sampling tests in #3760, would it make sense for you to do the sampling tests for 3d? It will probably fit into what you're already working on.

[greggman]

Yes, sure. I can either do it now and they'll fail or we can add them later but the code will just be almost copy and pasted from the 2d stuff so unless I remove them they'll already kind of maybe do the right thing but fail until implemented.

[mehmetoguzderin]

Change needs to cover not only validation but also operation, reopening. Thank you.

[mehmetoguzderin]

It seems like cb42984 actually fixed the additional limitation in util/texture/base, and there doesn't seem to be any additional particular filters to not test copies or writes of compressed 3D formats. I'll create a draft PR to dry run. Thank you!

[greggman]

so fyi, the texture builtin tests should be able to test this stuff. Most of the exist tests just filter out compressed 3d (as slices) texture formats. If/when want to turn them on we just need to change the filters.

[mehmetoguzderin]

@greggman thank you very much for the information.