PFND3D11DDI_CALCPRIVATEDEFERREDCONTEXTSIZE callback function (d3d10umddi.h)

Article
02/22/2024

The CalcPrivateDeferredContextSize function determines the size of the user-mode display driver's private region of memory (that is, the size of internal driver structures, not the size of the resource video memory) for a deferred context.

Syntax

PFND3D11DDI_CALCPRIVATEDEFERREDCONTEXTSIZE Pfnd3d11ddiCalcprivatedeferredcontextsize;

SIZE_T Pfnd3d11ddiCalcprivatedeferredcontextsize(
  D3D10DDI_HDEVICE unnamedParam1,
  const D3D11DDIARG_CALCPRIVATEDEFERREDCONTEXTSIZE *unnamedParam2
)
{...}

Parameters

unnamedParam1

hDevice [in]

A handle to the display device (graphics context).

unnamedParam2

pCalcPrivateDeferredContextSize [in]

A pointer to a D3D11DDIARG_CALCPRIVATEDEFERREDCONTEXTSIZE structure that describes the parameters that the user-mode display driver uses to calculate the size of the memory region.

Return value

CalcPrivateDeferredContextSize returns the size of the memory region that the driver requires to create a deferred context.

Remarks

The driver is only required to implement CalcPrivateDeferredContextSize if the driver supports the D3D11DDICAPS_COMMANDLISTS_BUILD_2 capability that can be returned in the D3D11DDI_THREADING_CAPS structure from a call to the GetCaps(D3D10_2) function.

Requirements

Requirement	Value
Minimum supported client	CalcPrivateDeferredContextSize is supported beginning with the Windows 7 operating system.
Target Platform	Desktop
Header	d3d10umddi.h (include D3d10umddi.h)