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Add function to convert a texture to Standard Swizzle and vice versa #475

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#515
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Add function to convert a texture to Standard Swizzle and vice versa#475
#515
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walbourn
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dx12Direct3D 12enhancement

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@walbourn
Chuck Walbourn (walbourn)
opened on May 14, 2024

DirectXTex should add a function to convert between D3D12_TEXTURE_LAYOUT_ROW_MAJOR and D3D12_TEXTURE_LAYOUT_64KB_STANDARD_SWIZZLE.

https://learn.microsoft.com/en-us/windows/win32/direct3d12/default-texture-mapping

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  1. Chuck Walbourn (walbourn)
    added
    enhancement
    on May 14, 2024
  2. Chuck Walbourn (walbourn)
    self-assigned this
    on May 14, 2024

  3. walbourn commented on Jun 3, 2024

    @walbourn
    Chuck Walbourn (walbourn)
    on Jun 3, 2024
    CollaboratorAuthor

    https://learn.microsoft.com/en-us/windows/win32/api/d3d12/ne-d3d12-d3d12_texture_layout#remarks

    Note that _pdep_u32 is a BMI2 instruction so you can count on it with /arch:AVX2.

  4. walbourn commented on Sep 11, 2024

    @walbourn
    Chuck Walbourn (walbourn)
    on Sep 11, 2024
    CollaboratorAuthor

    A challenge here is that the 'mip tails' packing is not defined, so we need to determine the way to solve this.

  5. Chuck Walbourn (walbourn)
    linked a pull request that will close this issueAdd functions to support Standard Swizzle textures #515on Sep 18, 2024
  6. Chuck Walbourn (walbourn)
    pinned this issue on Sep 24, 2024
  7. Chuck Walbourn (walbourn)
    added
    dx12Direct3D 12
    on Sep 25, 2024
  8. Chuck Walbourn (walbourn)
    added this to DirectXTex 2026on May 27, 2025
  9. Chuck Walbourn (walbourn)
    moved this to Backlog in DirectXTex 2026on May 27, 2025
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