PFND3D12DDI_CALCPRIVATEDEVICESIZE callback function

The CalcPrivateDeviceSize function determines the size of a memory region that the user-mode display driver requires from the Microsoft Direct3D runtime to store frequently-accessed data.

Syntax

PFND3D12DDI_CALCPRIVATEDEVICESIZE Pfnd3d12ddiCalcprivatedevicesize;

SIZE_T Pfnd3d12ddiCalcprivatedevicesize(
  D3D12DDI_HADAPTER Arg1,
  const D3D12DDIARG_CALCPRIVATEDEVICESIZE *Arg2
)
{...}

Parameters

Arg1

A handle that identifies the graphics adapter.

Arg2

A pointer to a D3D12DDIARG_CALCPRIVATEDEVICESIZE structure that describes the parameters that the user-mode display driver uses to calculate the size of the memory region.

Return Value

Returns the size of the memory region that the driver requires to store frequently-accessed data.

Requirements

   
Minimum supported client Windows 10
Header d3d12umddi.h (include d3d12umddi.h)