DXGK_QUERYSEGMENTOUT4 structure (d3dkmddi.h)
The DXGK_QUERYSEGMENTOUT4 structure contains memory segment information returned from the driver.
Syntax
typedef struct _DXGK_QUERYSEGMENTOUT4 {
UINT NbSegment;
BYTE *pSegmentDescriptor;
UINT PagingBufferSegmentId;
UINT PagingBufferSize;
UINT PagingBufferPrivateDataSize;
SIZE_T SegmentDescriptorStride;
} DXGK_QUERYSEGMENTOUT4;
Members
NbSegment
Number of elements in the pSegmentDescriptor array. The DxgkDdiQueryAdapterInfo (DXGKQAITYPE_QUERYSEGMENT4) will be called twice. First time, NbSegment will be set to 0. The driver should return STATUS_SUCCESS and set NbSegment to the number of GPU memory segments in the adapter without accessing any other member of the structure. Second time, the driver will be called with the reported number of segments and the driver should fill all required information.
pSegmentDescriptor
Pointer to the array of DXGK_SEGMENTDESCRIPTOR4 structures. The size of the array element is defined by SegmentDescriptorStride. The pSegmentDescriptor type has been changed to a BYTE* to help enforce the use of the stride as the method of iterating the array. The driver fills the array with information about each memory segment.
PagingBufferSegmentId
Segment identifier of the paging buffer. This is the index (starting from 1) of the segment in the pSegmentDescriptor array.
PagingBufferSize
Paging buffer size.
PagingBufferPrivateDataSize
Size, in bytes, of the driver-private data that will be provided with each paging buffer.
SegmentDescriptorStride
Size of the elements in the pSegmentDescriptor array in bytes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10 |
| Minimum supported server | Windows Server 2016 |
| Header | d3dkmddi.h (include D3dkmddi.h) |