internal QueryHeap(ComputeDevice device, QueryHeapType type, int numQueries)
{
_device = device;
_nextQuery = 0;
if (type == QueryHeapType.CopyTimestamp &&
_device.QueryFeatureSupport <D3D12_FEATURE_DATA_D3D12_OPTIONS3>(D3D12_FEATURE.D3D12_FEATURE_D3D12_OPTIONS3).CopyQueueTimestampQueriesSupported != TRUE)
{
ThrowHelper.ThrowNotSupportedException("Device does not support copy queue timestamps");
}
var desc = new D3D12_QUERY_HEAP_DESC
{
Count = (uint)numQueries,
Type = (D3D12_QUERY_HEAP_TYPE)type,
NodeMask = 0, // TODO: MULTI-GPU
};
_queryHeap = device.CreateQueryHeap(desc);
_numQueries = (uint)numQueries;
}
/// <summary>
/// Initializes a new instance of the <see cref="QueryHeapDescription"/> struct.
/// </summary>
/// <param name="type">The <see cref="QueryHeapType"/> type.</param>
/// <param name="count">Specifies the number of queries the heap should contain.</param>
/// <param name="nodeMask">For single GPU operation, set this to zero. If there are multiple GPU nodes, set a bit to identify the node (the device's physical adapter) to which the query heap applies.</param>
public QueryHeapDescription(QueryHeapType type, int count, int nodeMask = 0)
{
Type = type;
Count = count;
NodeMask = nodeMask;
}
