// d3dukmdt.h

typedef enum _D3DDDI_OFFER_PRIORITY {
  D3DDDI_OFFER_PRIORITY_NONE,
  D3DDDI_OFFER_PRIORITY_LOW,
  D3DDDI_OFFER_PRIORITY_NORMAL,
  D3DDDI_OFFER_PRIORITY_HIGH,
  D3DDDI_OFFER_PRIORITY_AUTO
} D3DDDI_OFFER_PRIORITY;
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Windows Driver Kit DDI reference (ne-d3dukmdt-_d3dddi_offer_priority)

_D3DDDI_OFFER_PRIORITY enumeration

Description

Indicates the importance of video memory resources that the user-mode display driver offers for reuse.

Constants

`D3DDDI_OFFER_PRIORITY_NONE`

The allocation should not be offered.

Note Do not use this value in the D3DDDICB_OFFERALLOCATIONS.Priority member.

`D3DDDI_OFFER_PRIORITY_LOW`

The allocation has low value and should be discarded before other offered allocations. Specify this type for allocations that have no useful content.

`D3DDDI_OFFER_PRIORITY_NORMAL`

The allocation has useful content but can easily be regenerated.

`D3DDDI_OFFER_PRIORITY_HIGH`

The allocation has useful content and cannot easily be regenerated. The video memory manager (which is part of Dxgkrnl.sys) should therefore avoid discarding this allocation before other offered allocations.

`D3DDDI_OFFER_PRIORITY_AUTO`

The video memory manager should make a policy decision on the allocation's value based on its priority for eviction.

D3DDDI_OFFER_PRIORITY - NtDoc