D3D12DDI_BROADCASTING_LAUNCH_NODE_PROPERTIES_0108 structure (d3d12umddi.h)

The D3D12DDI_BROADCASTING_LAUNCH_NODE_PROPERTIES_0108 structure describes the properties of a broadcasting launch node in a work graph.

Syntax

typedef struct D3D12DDI_BROADCASTING_LAUNCH_NODE_PROPERTIES_0108 {
  D3D12DDI_NODE_ID_0108                    FinalName;
  BOOL                                     bProgramEntry;
  D3D12DDI_NODE_IO_KIND_0108               InputNodeIOKind;
  UINT                                     InputNodeIOFlags;
  UINT                                     InputRecordSizeInBytes;
  UINT                                     GroupSharedUsageInBytes;
  UINT                                     MaxRecursionDepth;
  const UINT                               *pLocalRootArgumentsTableIndex;
  const D3D12DDI_NODE_0108                 *pShareInputOfNode;
  const UINT                               *pDispatchGrid;
  const UINT                               *pMaxDispatchGrid;
  const D3D12DDI_RECORD_DISPATCH_GRID_0108 *pRecordDispatchGrid;
  const D3D12DDI_NODE_LIST_ENTRY_0108      *pInputNodes;
  const D3D12DDI_NODE_LIST_ENTRY_0108      *pNodesSharingInputWithThisNode;
  UINT                                     NumOutputs;
  const D3D12DDI_NODE_OUTPUT_0108          *pOutputs;
} D3D12DDI_BROADCASTING_LAUNCH_NODE_PROPERTIES_0108;

Members

FinalName

A D3D12DDI_NODE_ID_0108 structure that specifies the final name of the node after any optional renames done at the application level.

bProgramEntry

When TRUE, the current node is a program entry and is listed in the pEntrypoints list in D3D12DDI_WORK_GRAPH_DESC_0108. As such this parameter is redundant, but it's present for clarity. The shader might not have declared that the node is an entrypoint but the runtime might have determined it must be one, or at the API the choice might have been overridden in some way. This member is always TRUE for a node that isn't targeted by any other nodes in the graph.

InputNodeIOKind

A D3D12DDI_NODE_IO_KIND_0108 enumeration that specifies the class of input. See Node input declaration.

InputNodeIOFlags

Flags that provide additional information about the node's input I/O. See the flags within D3D12DDI_NODE_IO_FLAGS_FLAG_MASK in D3D12DDI_NODE_IO_FLAGS_0108. For an input, the only flag that applies is D3D12DDI_NODE_IO_FLAG_TRACK_RW_INPUT_SHARING.

InputRecordSizeInBytes

Size of the input record, in bytes. Can be 0 if InputNodeIOKind is D3D12DDI_NODE_IO_KIND_EMPTY_INPUT_0108.

GroupSharedUsageInBytes

Size of group shared usage by the node, in bytes.

MaxRecursionDepth

Max recursion declared by shader. A value of 0 means no recursion.

pLocalRootArgumentsTableIndex

If a local root signature has been associated with the shader and/or the shader explicitly declared a local root argument table index it wants to use, the 0-based index is pointed to here. The runtime may have auto-assigned a location. If no local root signature has been associated with the shader, this will be nullptr.

pShareInputOfNode

Optional pointer to a node that shares the same input with this node, or nullptr if the current node isn't sharing another node's input. If this node is sharing its input from another node in the work graph, pShareInputOfNode points to that node, represented by a D3D12DDI_NODE_0108 structure. If multiple nodes are in an input sharing set, all but the source node point to the source node, and the source node instead sets the pNodesSharingInputWithThisNode parameter to point to the others.

pDispatchGrid

If the node has a fixed dispatch grid size, it is specified here as a 3-component value. Otherwise this is nullptr.

pMaxDispatchGrid

If the node gets its dispatch grid size as part of its input record, the max dispatch grid size is specified here as a 3-component value. Otherwise this is nullptr.

pRecordDispatchGrid

If nullptr, the output record doesn't contain SV_DispatchGrid. Else, points to a description of how SV_DispatchGrid appears in the output record. See [D3D12DDI_RECORD_DISPATCH_GRID_0108].

pInputNodes

Pointer to a list (D3D12DDI_NODE_LIST_ENTRY_0108) of nodes ((D3D12DDI_NODE_0108) that target the current node. pInputNodes is nullptr if no nodes target this node.

pNodesSharingInputWithThisNode

Pointer to a list (D3D12DDI_NODE_LIST_ENTRY_0108) of nodes ((D3D12DDI_NODE_0108) that share input with the current node. pNodesSharingInputWithThisNode is nullptr if no nodes share input with this node.

NumOutputs

Number of nodes that this node outputs to.

pOutputs

Pointer to an array of NumOutputs D3D12DDI_NODE_OUTPUT_0108 structures that contain output definitions. pOutputs is nullptr if this node doesn't output to other nodes.

Remarks

Any properties listed here take precedence over (override) what might have been declared in the shader for the node. The driver must always use the properties listed here as the final property selections. If a driver happens to care about whether something was overridden, it can compare any setting here against what the shader declared.

For more information, see Work graphs.

Requirements

See also

D3D12DDI_SHADER_NODE_0108