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D3D12DDI_COMMAND_QUEUE_FLAGS enumeration (d3d12umddi.h)

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The D3D12DDI_COMMAND_QUEUE_FLAGS enumeration specifies the type of command list to use on the command queue being created.

Syntax

typedef enum D3D12DDI_COMMAND_QUEUE_FLAGS {
  D3D12DDI_COMMAND_QUEUE_FLAG_NONE = 0x00000000,
  D3D12DDI_COMMAND_QUEUE_FLAG_3D = 0x00000001,
  D3D12DDI_COMMAND_QUEUE_FLAG_COMPUTE = 0x00000002,
  D3D12DDI_COMMAND_QUEUE_FLAG_COPY = 0x00000004,
  D3D12DDI_COMMAND_QUEUE_FLAG_PAGING = 0x00000008,
  D3D12DDI_COMMAND_QUEUE_FLAG_0020_VIDEO_LEGACY = 0x00000010,
  D3D12DDI_COMMAND_QUEUE_FLAG_0022_VIDEO_DECODE = 0x00000010,
  D3D12DDI_COMMAND_QUEUE_FLAG_0022_VIDEO_PROCESS = 0x00000020,
  D3D12DDI_COMMAND_QUEUE_FLAG_0053_VIDEO_ENCODE = 0x00000040
} ;

Constants

 
D3D12DDI_COMMAND_QUEUE_FLAG_NONE
Value: 0x00000000
No flags are specified.
D3D12DDI_COMMAND_QUEUE_FLAG_3D
Value: 0x00000001
Indicates a command queue compatible with graphics pipelines.
D3D12DDI_COMMAND_QUEUE_FLAG_COMPUTE
Value: 0x00000002
Indicates a command queue compatible with compute pipelines.
D3D12DDI_COMMAND_QUEUE_FLAG_COPY
Value: 0x00000004
Indicates a command queue compatible with a copy engine.
D3D12DDI_COMMAND_QUEUE_FLAG_PAGING
Value: 0x00000008
Reserved; do not use.
D3D12DDI_COMMAND_QUEUE_FLAG_0020_VIDEO_LEGACY
Value: 0x00000010
Deprecated; do not use.
D3D12DDI_COMMAND_QUEUE_FLAG_0022_VIDEO_DECODE
Value: 0x00000010
Indicates a command queue compatible with video decoding.
D3D12DDI_COMMAND_QUEUE_FLAG_0022_VIDEO_PROCESS
Value: 0x00000020
Indicates a command queue compatible with video processing.
D3D12DDI_COMMAND_QUEUE_FLAG_0053_VIDEO_ENCODE
Value: 0x00000040
Indicates a command queue compatible with video encoding.

Remarks

There are separate queue types for video decode and video processing. The video decode command queue only supports submitting video decode command lists and the video process command queue only supports submitting video process command lists. Both video decode and video process share the same DDI table definition, but separate table instances are retrieved from the driver for each type, see D3D12DDI_TABLE_TYPE.

Because video decode and video processing are separate queue types, they are necessarily separate queue instances. Applications are required to synchronize between separate queue instances; therefore, drivers must not implicitly synchronize between decode and video process queues.

Requirements

Requirement Value
Header d3d12umddi.h (include D3d12umddi.h)

See also

D3D12DDI_D3D12_OPTIONS_DATA_0089

D3D12DDIARG_CREATECOMMANDQUEUE_0050

Pfnd3d12ddiCreatecommandqueue0050