[Webkit-unassigned] [Bug 211303] New: WebGPU: copyTextureToTexture() has an implementation bug (src copy view info is used also as dst)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=211303

            Bug ID: 211303
           Summary: WebGPU: copyTextureToTexture() has an implementation
                    bug (src copy view info is used also as dst)
           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: gvinals at apple.com

Summary:
WebGPU: copyTextureToTexture() has an implementation bug (src copy view info is used also as dst).

See:
GPUCommandBufferMetal.mm#214,217

[blitEncoder()
        copyFromTexture:src.texture->platformTexture()
        sourceSlice:src.arrayLayer
        sourceLevel:src.mipLevel
        sourceOrigin:MTLOriginMake(src.origin.x, src.origin.y, src.origin.z)
        sourceSize:MTLSizeMake(size.width, size.height, size.depth)
        toTexture:dst.texture->platformTexture()
        destinationSlice:src.arrayLayer
        destinationLevel:src.mipLevel
        destinationOrigin:MTLOriginMake(dst.origin.x, dst.origin.y, dst.origin.z)];

In particular:
        destinationSlice:src.arrayLayer
        destinationLevel:src.mipLevel

Should be:
        destinationSlice:dst.arrayLayer
        destinationLevel:dst.mipLevel

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