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DXGKARG_RENDERGDI structure (d3dkmddi.h)

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The DXGKARG_RENDERGDI structure is used when submitting Windows Graphics Device Interface (GDI) commands for contexts that support virtual addressing.

Syntax

typedef struct _DXGKARG_RENDERGDI {
  const VOID             *pCommand;
  UINT                   CommandLength;
  VOID                   *pDmaBuffer;
  D3DGPU_VIRTUAL_ADDRESS DmaBufferGpuVirtualAddress;
  UINT                   DmaSize;
  VOID                   *pDmaBufferPrivateData;
  UINT                   DmaBufferPrivateDataSize;
  DXGK_ALLOCATIONLIST    *pAllocationList;
  UINT                   AllocationListSize;
  UINT                   MultipassOffset;
} DXGKARG_RENDERGDI;

Members

pCommand

A pointer to the start of the command buffer.

CommandLength

The size, in bytes, of the command buffer that pCommand points to.

pDmaBuffer

A pointer to the start of the DMA buffer, which is aligned on 4 KB.

DmaBufferGpuVirtualAddress

A D3DGPU_VIRTUAL_ADDRESS data type that indicates the virtual address where the DMA buffer was paged in. If the physical address is zero, the DMA buffer is not correctly paged in.

DmaSize

The size, in bytes, of the DMA buffer that pDmaBuffer points to.

pDmaBufferPrivateData

A pointer to a driver-resident private data structure that is used for generating the DMA buffer that pDmaBuffer points to.

DmaBufferPrivateDataSize

The number of bytes that remain in the private data structure that pDmaBufferPrivateData points to for the current operation.

pAllocationList

An array of DXGK_ALLOCATIONLIST structures for the list of allocations that the DMA buffer references. Each allocation that is referenced should appear once for optimal performance.

AllocationListSize

The available number of elements in the array that pAllocationList specifies, which represents the number of allocation specifications to send through DMA to the graphics hardware.

MultipassOffset

A value that specifies the progress of the rendering operation.

Requirements

Requirement Value
Minimum supported client Windows 10
Minimum supported server Windows Server 2016
Header d3dkmddi.h (include D3dkmddi.h)