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PFND3D12DDI_CALCPRIVATEDEVICESIZE callback function (d3d12umddi.h)

  • Article

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 unnamedParam1,
  const D3D12DDIARG_CALCPRIVATEDEVICESIZE *unnamedParam2
)
{...}

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.

Requirements

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