Helper functions for Direct3D 12
These helper functions help particularly in handling subresources, and are declared in d3dx12.h.
d3dx12.h is available separately from the Direct3D 12 headers. You can download d3dx12.h from The D3D12 Helper Library.
In this section
| Topic | Description |
|---|---|
| CommandListCast | This function template casts a constant pointer to any command list into a const pointer to an ID3D12CommandList. |
| D3D12CalcSubresource | Calculates a subresource index for a texture. |
| D3D12DecomposeSubresource | Outputs the mip slice, array slice, and plane slice that correspond to the specified subresource index. |
| D3D12GetFormatPlaneCount | Gets the number of planes for the specified DXGI format for the specified virtual adapter (an ID3D12Device). |
| D3D12IsLayoutOpaque | Indicates whether the layout is opaque. |
| D3DX12GetBaseSubobjectType | Returns the subobject type that corresponds to the base class of the passed-in subobject type. |
| D3DX12ParsePipelineStateStream | Parses a pipeline state stream description, calling a user-defined callback for each subobject instance parsed. |
| D3DX12SerializeVersionedRootSignature | Helps enable root signature 1.1 features when they are available, and does not require maintaining two code paths for building root signatures. This helper method reconstructs a version 1.0 root signature when version 1.1 is not supported. |
| GetRequiredIntermediateSize | Returns the required size of a buffer to be used for data upload. |
| Memcpysubresource | Copies a subresource row by row. |
| Updatesubresources | Updates subresources, all the subresource arrays should be populated, typically by calling ID3D12Device::GetCopyableFootprints. |
| Updatesubresources (heap-allocating) | Updates subresources with a heap-allocating implementation. |
| Updatesubresources (stack-allocating) | Updates subresources with a stack-allocating implementation. |