[Webkit-unassigned] [Bug 262135] New: [WGSL] Buffer dynamic offsets are not implemented

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=262135

            Bug ID: 262135
           Summary: [WGSL] Buffer dynamic offsets are not implemented
           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] Buffer dynamic offsets are not implemented

This offset would probably be in its own buffer because the pipeline doesn't know the value until right before draw time. 

So:
[[vertex]] type2 function0(type3 parameter0 [[stage_in]], constant type5& parameter1 [[buffer(22)]])
{
    const constant type4& local0 = parameter1.uniforms;

would become something like:

[[vertex]] type2 function0(type3 parameter0 [[stage_in]], constant type5& parameter1 [[buffer(22)]], constant uint32_t* offsets [[buffer(23)]])
{
    const constant type4& local0 = *(const constant type4*)((constant char*)&parameter1.uniforms + offsets[INDEX]));

where INDEX is 0,1,2... corresponding to the nth buffer in the bind group

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