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D3D10CalcSubresource function
Calculate a subresource index for a texture.
Syntax
inline UINT D3D10CalcSubresource(
_In_ UINT MipSlice,
_In_ UINT ArraySlice,
_In_ UINT MipLevels
);
Parameters
- MipSlice [in]
-
Type: UINT
A zero-based index into an array of subtextures; 0 indicates the first, most detailed subtexture (or mipmap level).
- ArraySlice [in]
-
Type: UINT
The zero-based index of the first texture to use (in an array of textures).
- MipLevels [in]
-
Type: UINT
Number of mipmap levels (or subtextures) to use.
Return value
Type: inline UINT
The index which equals MipSlice + (ArraySlice * MipLevels).
Remarks
A buffer is an unstructured resource and is therefore defined as containing a single subresource. APIs that take buffers do not need a subresource index. A texture on the other hand is highly structured. Each texture object may contain one or more subresources depending on the size of the array and the number of mipmap levels.
Requirements
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See also
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