// d3d12umddi.h

PFND3D12DDI_CALCPRIVATEDEVICESIZE Pfnd3d12ddiCalcprivatedevicesize;

SIZE_T Pfnd3d12ddiCalcprivatedevicesize(
  D3D12DDI_HADAPTER unnamedParam1,
  const D3D12DDIARG_CALCPRIVATEDEVICESIZE *unnamedParam2
)
{...}
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Windows Driver Kit DDI reference (nc-d3d12umddi-pfnd3d12ddi_calcprivatedevicesize)

PFND3D12DDI_CALCPRIVATEDEVICESIZE callback function

Description

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.

Parameters

`unnamedParam1`

A handle that identifies the graphics adapter.

`unnamedParam2`

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.

Prototype

//Declaration

PFND3D12DDI_CALCPRIVATEDEVICESIZE Pfnd3d12ddiCalcprivatedevicesize;

// Definition

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

PFND3D12DDI_CALCPRIVATEDEVICESIZE - NtDoc