PFND3DDDI_GENERATEMIPSUBLEVELS callback function (d3dumddi.h)

The GenerateMipSubLevels function regenerates the sublevels of a MIP-map texture.

Syntax

PFND3DDDI_GENERATEMIPSUBLEVELS Pfnd3dddiGeneratemipsublevels;

HRESULT Pfnd3dddiGeneratemipsublevels(
  HANDLE hDevice,
  const D3DDDIARG_GENERATEMIPSUBLEVELS *unnamedParam2
)
{...}

Parameters

hDevice

A handle to the display device (graphics context).

unnamedParam2

pData [in]

A pointer to a D3DDDIARG_GENERATEMIPSUBLEVELS structure that describes how to generate the sublevels of a MIP-map texture.

Return value

GenerateMipSubLevels returns S_OK or an appropriate error result if the sublevels of a MIP-map texture are not successfully generated.

Remarks

After the user-mode display driver performs an operation that accesses only the top level of a MIP-map texture, the Microsoft Direct3D runtime calls the driver's GenerateMipSubLevels function to notify the driver to automatically regenerate the sublevels of the MIP-map texture by using a specific filter type.

Requirements

Requirement	Value
Minimum supported client	Available in Windows Vista and later versions of the Windows operating systems.
Target Platform	Desktop
Header	d3dumddi.h (include D3dumddi.h)

See also

D3DDDIARG_GENERATEMIPSUBLEVELS

D3DDDI_DEVICEFUNCS