D3DDDI_CREATECONTEXTFLAGS structure (d3dukmdt.h)

The D3DDDI_CREATECONTEXTFLAGS structure describes how to create a context in a call to the pfnCreateContextCb function.

Syntax

typedef struct _D3DDDI_CREATECONTEXTFLAGS {
  union {
    struct {
      UINT NullRendering : 1;
      UINT InitialData : 1;
      UINT DisableGpuTimeout : 1;
      UINT SynchronizationOnly : 1;
      UINT HwQueueSupported : 1;
      UINT NoKmdAccess : 1;
      UINT TestContext : 1;
#if ...
      UINT Reserved : 25;
#elif
      UINT Reserved : 28;
#else
      UINT Reserved : 30;
#endif
    };
    UINT Value;
  };
} D3DDDI_CREATECONTEXTFLAGS;

Members

NullRendering

Specifies whether the GPU should process any commands that are sent by the context that is created. The NullRendering bit-field flag is set to inform the GPU not to process any commands that are sent by the context. The NullRendering bit-field flag is set only during performance investigating and debugging to simulate an infinitely fast rendering engine that still must perform the overhead of DMA buffer submission and signaling. NullRendering is never set during typical operations.

InitialData

When set, indicates that the context is created with initial data.

DisableGpuTimeout

When set, indicates that the GPU timeout is disabled for the context.

SynchronizationOnly

When set, indicates that the context is created for synchronization purposes only, and not for rendering.

HwQueueSupported

When set, indicates that the context supports hardware queues, which can improve efficiency in command processing.

NoKmdAccess

When set, indicates that the context is created without kernel-mode driver (KMD) access. Added in WDDM 2.3.

TestContext

When set, indicates that the context is created for testing purposes. Added in WDDM 2.3.

Reserved

This member is reserved and should be set to zero.

Value

A member in the union that is contained in D3DDDI_CREATECONTEXTFLAGS that can hold one 32-bit value that identifies how to create the context.

Requirements

See also

D3DDDICB_CREATECONTEXT

pfnCreateContextCb