Bug 256722

Summary:	[WebGPU][WGSL] support for textureLoad and textureSampleBaseClampToEdge for external textures
Product:	WebKit	Reporter:	Mike Wyrzykowski <mwyrzykowski>
Component:	WebGPU	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified

Description Mike Wyrzykowski 2023-05-12 11:10:35 PDT

textureLoad and/or textureSampleBaseClampToEdge are required to support external textures

textureSampleBaseClampToEdge - https://www.w3.org/TR/WGSL/#textureSampleBaseClampToEdge
 => already takes a sampler so the assumption is the user has defined one in their WGSL

textureLoad(texture, pixelCoords, levelOfDetail) - https://www.w3.org/TR/WGSL/#textureload
 => does not take a sampler, one can use read on the 2d texture, e.g., in MSL
 

   texture.read(pixelCoords, levelOfDetail)

Comment 1 Radar WebKit Bug Importer 2023-05-12 11:10:59 PDT

<rdar://problem/109272220>