[Webkit-unassigned] [Bug 256721] New: Initial WGSL support for texture_external

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri May 12 10:45:19 PDT 2023


https://bugs.webkit.org/show_bug.cgi?id=256721

            Bug ID: 256721
           Summary: Initial WGSL support for texture_external
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebGPU
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mwyrzykowski at apple.com

WGSL support for texture_external: https://gpuweb.github.io/gpuweb/wgsl/#external-texture-type

In order to support this, use of "texture_external nameForT" will likely need to generate the following information in the argument buffer at a minimum:

texture2d<half> nameForT_FirstPlane;
texture2d<half> nameForT_SecondPlane;
float3x3 nameForT_UVRemapMatrix;
float4x3 nameForT_ColorSpaceConversionMatrix;


texture_external can only be used with textureLoad or textureSampleBaseClampToEdge. I will write up separate issues for those.

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