// umdprovider.h

typedef struct _UMDETW_ALLOCATION_USAGE {
  union {
    struct {
      UINT Packed : 1;
      UINT Renamed : 1;
      UINT Reserved : 14;
      UINT DriverReserved : 16;
    };
    UINT Value;
  };
} UMDETW_ALLOCATION_USAGE;
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Windows Driver Kit DDI reference (ns-umdprovider-_umdetw_allocation_usage)

_UMDETW_ALLOCATION_USAGE structure

Description

Indicates the reason for mapping from a Microsoft Direct3D memory allocation to a Microsoft DirectX graphics kernel subsystem (Dxgkrnl.sys) allocation.

Members

`Packed`

The allocation is packed into a larger parent allocation.

`Renamed`

The allocation is a renamed instance of a Direct3D allocation.

`Reserved`

Reserved for system use. Do not use in your driver.

`DriverReserved`

The driver can use these bit fields for its own internal purposes.

`Value`

A 32-bit value that specifies the allocation mapping.

UMDETW_ALLOCATION_USAGE - NtDoc