D3D12DDI_COMMAND_QUEUE_FLAGS enumeration (d3d12umddi.h)

2024-10-05

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)

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