Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 870a585cde030428dfc6ed37e06637b11ecc5d68
      
https://github.com/WebKit/WebKit/commit/870a585cde030428dfc6ed37e06637b11ecc5d68
  Author: Mike Wyrzykowski <[email protected]>
  Date:   2026-09-10 (Thu, 10 Sep 2026)

  Changed paths:
    M 
LayoutTests/http/tests/webgpu/webgpu/api/validation/image_copy/buffer_related-expected.txt
    M Source/WebGPU/WebGPU/CommandEncoder.mm
    M Source/WebGPU/WebGPU/CommandEncoder.swift

  Log Message:
  -----------
  "bc1-rgba-unorm";dimension="3d" test cases are failing
https://bugs.webkit.org/show_bug.cgi?id=323771
rdar://187029656

Reviewed by Dan Glastonbury.

Correct bufferToTexture and textureToBuffer data copies for 3D compressed 
formats.

Test: 
http/tests/webgpu/webgpu/api/validation/image_copy/buffer_related-expected.txt:
now 100% passing

* Source/WebGPU/WebGPU/CommandEncoder.mm:
(WebGPU::CommandEncoder::copyBufferToTexture):
(WebGPU::CommandEncoder::copyTextureToBuffer):
* Source/WebGPU/WebGPU/CommandEncoder.swift:
(WebGPU.copyTextureToBuffer(_:destination:copySize:)):
(WebGPU.copyBufferToTexture(_:destination:copySize:)):

Canonical link: https://commits.webkit.org/320841@main



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