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

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walbourn opened this issue May 14, 2024 · 2 comments · May be fixed by #515
Open

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

walbourn opened this issue May 14, 2024 · 2 comments · May be fixed by #515
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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
@walbourn walbourn self-assigned this May 14, 2024
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walbourn commented Jun 3, 2024 •
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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.

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

@walbourn walbourn linked a pull request Sep 18, 2024 that will close this issue
[Draft] Add functions to support Standard Swizzle textures #515
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[Draft] Add functions to support Standard Swizzle textures isplunke/DirectXTex
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