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D3DDDI_COPY_FLAGS enumeration

Specifies how to handle the existing contents of a resource during a copy or update operation of a region within that resource.

Syntax


typedef enum D3DDDI_COPY_FLAGS { 
  D3DDDI_COPY_NO_OVERWRITE  = 0x00000001,
  D3DDDI_COPY_DISCARD       = 0x00000002
} D3DDDI_COPY_FLAGS;

Constants

D3DDDI_COPY_NO_OVERWRITE

The caller guarantees that the portion of the surface that is being written to with new data is not currently being referenced or accessed by any previous render operation. The driver can take advantage of this capability to optimize performance and memory usage.

D3DDDI_COPY_DISCARD

The user-mode display driver can discard previous contents of the entire resource. The driver can take advantage of this capability to optimize performance and memory usage.

Requirements

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Header

D3dumddi.h (include D3dumddi.h)

 

 

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